tag:blogger.com,1999:blog-40016820246107052732024-03-05T09:47:38.516+01:00Ask Kurt (E)The blog "Ask Kurt" will answer questions, asked looking at the videosKurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.comBlogger29125tag:blogger.com,1999:blog-4001682024610705273.post-9971145164902976982019-08-16T11:01:00.002+02:002019-08-16T11:05:33.424+02:00Ignition detection built into the APC system<br />
<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/vicO_vi1xMM/0.jpg" frameborder="0" height="270" src="https://www.youtube.com/embed/vicO_vi1xMM?feature=player_embedded" width="480"></iframe></div>
<div class="MsoNormal">
<br />
<br />
<span lang="EN-US" style="mso-ansi-language: EN-US;">With our
FIT+ three torches, the ignition of the flame works very reliably. However,
under certain conditions it may happen that the ignition is not successful the
first time. For this reason, we have integrated ignition detection into the APC
Automatic Oxy-Fuel Process Control System. If the ignition does not produce a
flame the first time, ignition is repeated until the flame is on. This is a
further step on the way to a complete Oxy-Fuel cutting process automation.<o:p></o:p></span></div>
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com1tag:blogger.com,1999:blog-4001682024610705273.post-25702034014791930372019-08-01T10:27:00.003+02:002019-08-01T10:34:10.161+02:00The right flame for oxyfuel cutting<div class="MsoNormal">
<span lang="EN-US">Does your
preheating take longer than specified in the cutting table?<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">Is the
cutting quality bad?<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-US">One reason
may be the incorrect setting of the flame.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">A cutting
flame should have the correct mixture between heating oxygen and heating gas. <o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">With propane,
it is approx. 1 part propane and 4 parts oxygen. For acetylene, it is about
1:1.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">In the
attached video, you can see examples of a heating flame. <o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">For the
correct adjustment often years of experience is necessary. <o:p></o:p></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-US">Alternatively,
you use APC, our fully automatic Oxy-Fuel Process Control System.<o:p></o:p></span></div>
<div class="MsoNormal">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/uoN4dTs_sOM/0.jpg" frameborder="0" height="270" src="https://www.youtube.com/embed/uoN4dTs_sOM?feature=player_embedded" width="480"></iframe></div>
<div class="MsoNormal">
<br /></div>
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-58889012765286307182019-07-31T17:32:00.001+02:002019-08-01T10:33:08.831+02:00FIT+ three backfire and the missing error lineOxy-Fuel cutting torches have been manufactured and used for 150 years.<br />
Since that time, it has been possible to cut with these cutting torches.<br />
IHT and GCE have now introduced a new generation of cutting torches. The FIT+ three cutting torch. What is the difference between a simple cutting torch and the FIT+ three?<br />
Why does a FIT+ three oxy-fuel cutting torch suddenly have an error output and why should I connect it?<br />
That is what this video is about.<br />
<iframe allowfullscreen="" frameborder="0" height="270" src="https://www.youtube.com/embed/HO6dX3GPhOs" width="480"></iframe>Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-61560840550362376472018-03-10T13:17:00.002+01:002019-07-31T17:52:01.428+02:00Ask Kurt about: "Fit for Future"<iframe allowfullscreen="" frameborder="0" height="270" src="https://www.youtube.com/embed/hBbojM2iNsc" width="480"></iframe><br />
<br />
<br />
<br />
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Usually I talk about food <o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt; tab-stops: 426.85pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">But I have realized,
something has to change.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">That's why we're talking about getting fit today.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Let's talk about making products fit for the future.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">What about your attitude? For example, oxy-fuel
cutting?<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Old fashioned. Too complicated? So, let’s just
automate it.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">We all know:<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Oxy-Fuel is cost-effective, ideal also for small plate
thicknesses und delivers high quality.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">That you can use these advantages again in the future,
we have sent the proven Oxy-Fuel cutting to the IHT fitness studio.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt; margin-left: 0cm; margin-right: 0cm; margin-top: 6.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">First we developed a new cutting torch with ignition, height sensing
that even has a detection of backfire.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt; margin-left: 0cm; margin-right: 0cm; margin-top: 6.0pt;">
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Then we fully automated the oxy-fuel cutting process.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Our new cutting system APC perfectly suites your
application.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">No worry, no hassle. Simply Install and cut.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt; margin-left: 0cm; margin-right: 0cm; margin-top: 6.0pt;">
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt; margin-left: 0cm; margin-right: 0cm; margin-top: 6.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">"Well, join in. <o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt; margin-left: 0cm; margin-right: 0cm; margin-top: 6.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">It’s so easy. <o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">With the fully automated Oxy-Fuel cutting system from
IHT.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">Ask me.<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: 2.0pt;">
<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif;">I'll make you fit for the future."</span><span lang="EN-US" style="font-family: "arial" , sans-serif; font-size: 24.0pt;"><o:p></o:p></span></div>
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-19757579738419586772017-08-09T21:01:00.001+02:002017-08-09T21:04:23.679+02:00Have you experienced problems when manually igniting your Oxy-Fuel torches?<a href="http://iht1.de/NL1708/Handzuenden.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Manual Ignition" border="0" class="w100 mb12" src="http://iht1.de/NL1708/Handzuenden.jpg" title="Manual Ignition" /></a><span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">Has anyone been injured whilst cutting?</span><br />
<br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">Any burnt hands?</span><br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;"><br /></span>
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">If you've answered Yes to any of these questions and want to know what you can do about it,</span><br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;"><br /></span><span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">come and visit us at</span><br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">SCHWEISSEN & SCHNEIDEN,</span><br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">the International trade fair for</span><br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">Joining Cutting + Surfacing,</span><br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;">in Düsseldorf in September (25-29)</span><br />
<br />
<span style="background-color: white; font-family: "arial" , "helvetica" , sans-serif; font-size: 12px;"><b>Hall 13, Stand A 31</b></span>Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-20993276320841180882016-11-19T18:34:00.000+01:002016-11-19T18:34:28.482+01:00Fact N°4 Oxy-Fuel needs more automation<div class="MsoNormal">
N°4 is the
most important Fact when looking at the future of Oxy-Fuel cutting. Bringing
the technique into the 21st Century and turning it into an autonomous driving
cutting process: This is the task that lies ahead so that Oxy-Fuel can compete on a level
playing field along with Plasma and Laser.</div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<span lang="EN-GB">So what
needs to be realised is that an Oxy-Fuel cutting torch can be more than a dumb cutting
nozzle holder. What else do you think
should the torch should be able to do? Ignite automatically? You may say there are
already one or two on the market, yes, but far from enough. Integrated height
control or distance measurement? Flashback detection? Is that enough? How about detecting whether
the flame is on or off? That's all? Do you need more? For me, these are just the
starting points.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">The next
step is fully integrated automatic gas control.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNJWOjeP6wh3vndOKA1YFR7X_iCjl3PyzS_WJ0ghGMP5tOFGzEveH9DBI_inimd6k2tFsxIJXjpN4fS3btA7-njhI1RXWsj3Rsxk_t3d4CWF3da1ngjlrHeyd8WsMK4Qz_cdruhD_515A/s1600/Folie10.JPG" imageanchor="1"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNJWOjeP6wh3vndOKA1YFR7X_iCjl3PyzS_WJ0ghGMP5tOFGzEveH9DBI_inimd6k2tFsxIJXjpN4fS3btA7-njhI1RXWsj3Rsxk_t3d4CWF3da1ngjlrHeyd8WsMK4Qz_cdruhD_515A/s400/Folie10.JPG" width="400" /></a></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">You may say
that this already exists on the market. Yes for sure, offered by many
manufacturers, some better than others.
The key point here is that what is needed is full integration and interaction
with the cutting torch, height control system and the CNC. It is about the processes; pre-heating, piercing
and cutting. It's about creating a true unified cutting database.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">What we are
trying to achieve is to automate the process as much as possible, so that the
operator can perform other tasks while the machine cuts. This aspect is still much
neglected. </span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">You know this certainly: I have often heard in workshops "I do
not know what to do. One cutting machine operator provides perfect parts, has a
low wear on nozzles and other consumables, the other produces lousy parts, with
r each piercing operation needing a new nozzle." </span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">What needs to be done is
that the process know-how is transferred from the operator to the machine in an
intelligent way.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-GB"><b>Fact N°4
Oxy-Fuel needs more automation PROVEN!</b><o:p></o:p></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-38538323929471996202016-04-03T11:35:00.000+02:002016-04-03T11:35:37.742+02:00Fact N°3 Oxy-Fuel produces high quality cuts<div class="MsoNormal">
Like me,
your favourite bedside book is probably a copy of ISO EN DIN 9013, Thermal
cutting - Classification of thermal cuts.
If it isn't and you would like a précis, basically the Good Book says
that whether you are looking at the squareness of a cut, the tolerance of the
cutting angle or roughness of the finished cut, you will always find that Oxy-Fuel gets the
highest rating.</div>
<div class="MsoNormal">
<span lang="EN-GB">
<br />
Of course you do have to be looking at
parts cut in a production environment made from industrial quality steel and
not those made on an exhibition stand to amuse the visitors clutching their
giveaways!<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB">It is
undisputed that the Oxy-Fuel cutting systems provide excellent quality.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-GB"><b>So Fact N°3:
Oxy-Fuel produces high quality cuts. PROVEN!</b><o:p></o:p></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com4tag:blogger.com,1999:blog-4001682024610705273.post-30369512831406260932016-03-29T09:16:00.000+02:002016-03-29T09:16:07.102+02:00Fact N° 2: Oxy fuel really is being used to cut thin plates<div class="MsoNormal">
The results
amazed me, I was stunned. I carried out a survey based on information I got
from supplier of Oxy-Fuel cutting nozzles. The question I asked was, "How
many cutting nozzles for each different sheet thickness do you sell? This was
the result.</div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmCTsdUerBQLEoSZlwOUgbgvtggd2vDtS66aVosMIL4hGN-yq7lkRUTaSNqkfh_poMfdN4gCocOs7AcGogtCwFMlGuVB2ANfyJxYcECFOzWBd1J1dL8lvi4lSvLA4k571iZ8spnAMqGEQ/s1600/Folie7.JPG" imageanchor="1"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmCTsdUerBQLEoSZlwOUgbgvtggd2vDtS66aVosMIL4hGN-yq7lkRUTaSNqkfh_poMfdN4gCocOs7AcGogtCwFMlGuVB2ANfyJxYcECFOzWBd1J1dL8lvi4lSvLA4k571iZ8spnAMqGEQ/s400/Folie7.JPG" width="400" /></a></div>
<div class="MsoNormal">
The
nozzle manufacturer sells very few nozzles for smaller than 10 mm (0.4") or
larger than 100 mm (4" inch) plates, which did not really surprise me. What did
was the quantity of nozzles for cutting 15mm plates they were selling and for
larger sizes than that, the curve rises steeply. That really surprised me.</div>
<div class="MsoNormal">
<br /></div>
<br />
<div class="MsoNormal">
<span lang="EN-GB">So Fact N°2:
Oxy-Fuel really is being used for small sheet thicknesses. PROVEN!<o:p></o:p></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-67273591755231809522016-03-07T07:33:00.000+01:002016-03-10T21:22:13.767+01:00Fact N° 1: Oxy-Fuel doesn't cost the earth<div class="MsoNormal">
Let me explain
the chart first, it shows cutting costs per metre based on the thickness of the
sheet. Everything is included, the cost of capital invested, running costs, manpower,
etc. I have simplified the curves, please forgive me for that, my aim here is to
show the basic principles.</div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyAUy4Nb-LQudbk9bPL12FQFVEcTG1hOOdE8fgetCphmpJs-OBaCPvIbswhDWjo56ZipVDC71OJtU28GlQ810Nwuqns5QvW1OKnMiQC4qGJvruQqBOuFWSw2HJ2TsZgxIJ-xnw29b3PxY/s1600/Folie5.JPG" imageanchor="1"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyAUy4Nb-LQudbk9bPL12FQFVEcTG1hOOdE8fgetCphmpJs-OBaCPvIbswhDWjo56ZipVDC71OJtU28GlQ810Nwuqns5QvW1OKnMiQC4qGJvruQqBOuFWSw2HJ2TsZgxIJ-xnw29b3PxY/s400/Folie5.JPG" width="400" /></a></div>
<div class="MsoNormal">
It can be
seen clearly when looking at Laser, the initial investment costs only play a
minor role.</div>
<div class="MsoNormal">
<span lang="EN-GB">The
investment costs are often overstated when purchasing a new machine. Of course
I agree with your accountant that you should not be throwing money out of the window.
But you don't just have the choice of lower initial purchase cost or lower
cutting costs over the life of the machine. By investing slightly more in a
modern Oxy-Fuel machine, you could have the best of both.<br />
<br />
We can also see from this graph that Oxy-Fuel cutting for sheet thicknesses from
20 mm is very cost effective. And the more torches you have, the greater the
savings.<o:p></o:p></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">So Fact N°1:
Oxy-Fuel doesn't cost the earth - PROVEN!<o:p></o:p></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-66083401390086225352016-03-01T21:09:00.000+01:002016-06-03T12:04:16.467+02:00Four Facts about Oxy-Fuel cutting that you may think you are probably not going to believe:<div class="MsoNormal">
Many of you
have a mix of Plasma, Laser and Oxy-Fuel cutting machines in use, a perfectly
normal set-up. We all know by now that each method of cutting has its field of use
and there is a preferred cutting method for each cutting application. </div>
<div class="MsoNormal">
Every production
floor will be equipped with several Plasma and Laser cutting machines and each
plays its own important role in thermal cutting. Both of these cutting
processes are like autonomous self-driving vehicles just like modern cars. </div>
<div class="MsoNormal">
<span lang="EN-GB">
<br />
But why has no-one mentioned Good Old Oxy-Fuel, whereabouts does that figure in
today's cutting league? Some call it old and past it, or that it can only be
used where there are people around to
make it work properly. <o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">Stop:
Wrong: This is not true! Oxy-Fuel (or Flame) cutting is still relatively young
and Yes, in order to get the best results, it will need the help of an
experienced operator. The story of Oxy-Fuel cutting has only just started. </span></div>
<div class="MsoNormal">
<span lang="EN-GB">I
feel strongly there is still great room for improvement (a phrase I remember
from my school reports) and that it has a strong future: It does have an
autonomous self driving future. All this is going to take, is the use of some
properly applied innovative automation.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">Why is the
Oxy-Fuel process so poorly automated at the moment? One of the reasons is to
realise where the knowledge of the cutting process is these days and why this is?<br />
<br />
Let us compare Oxy-Fuel and Plasma.<o:p></o:p></span></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh14EL-ZYYpqh_tsM4lvdrOGHsZANocqCT-MdpD8-zdPxapj3zQIyu-WyY6tnYsIVwrXGpiufYeNS9W3sehjEgOFj0zsHyRHHoA9XLYLxI2UwP6gHlDeiM2RMOO5EzSF7IXvZI5Cuqoueg/s1600/Folie3.JPG" imageanchor="1"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh14EL-ZYYpqh_tsM4lvdrOGHsZANocqCT-MdpD8-zdPxapj3zQIyu-WyY6tnYsIVwrXGpiufYeNS9W3sehjEgOFj0zsHyRHHoA9XLYLxI2UwP6gHlDeiM2RMOO5EzSF7IXvZI5Cuqoueg/s400/Folie3.JPG" width="400" /></a></div>
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<br /></div>
<div class="MsoNormal">
<span lang="EN-GB">With
Plasma in the beginning, the machine operator was there on hand to see and to hear
if the cut was good. Now it's different, the manufacturer of the plasma source
provides the plasma power source, the torch, the gas console and most importantly,
the process know how which is now embedded in the system, safely hidden from
everyone but him. <o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">The machine
builder sells all he knows about cutting built into the machine and the user is
just left to set the plate, enter the cutting data and start the cut, Job done!<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-GB">With Oxy-fuel
cutting at the moment, things are different. Here a large part of the know-how is
still with the user. </span></div>
<div class="MsoNormal">
<span lang="EN-GB">The operator, who knows the process better, will produce
the best results. He will produce higher quality results and will cause the
least wear on nozzles etc. A less able operator will produce more scrap, cause
more wear and his machine will require servicing more often. You have learned
by long experience that to get the best results with Oxy-Fuel at the moment,
you need to invest in well-trained staff. Perhaps you should invest more in the
machine instead?<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-GB"><br /></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-GB">We at IHT have
a passion for cutting and more especially in finding ways of improving the
process, why not join us and investigate the Facts.<o:p></o:p></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-47324462854766943042016-02-24T13:40:00.000+01:002016-03-10T21:25:12.968+01:00To pierce or to drill? That is the question<div class="MsoNormal">
Using a cutting torch to
pierce a hole is something frequently done whether you are using Plasma or Oxy-Fuel.
But sloppy piercing increases wear and costs and it is just not practical for
smaller holes.</div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<span lang="EN-GB">Drilling is the obvious
alternative but physically mounting a drilling machine on to the cutting
machine can be difficult but it is worth the effort.<o:p></o:p></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-GB">After purchasing a machine
with an excellent deep hole drilling machine, holes are now only drilled and
not pierced at one Swiss cutting company. </span></div>
<div class="MsoNormal">
<span lang="EN-GB">They say that they have found that
that this solution his is more economical, the cutting process is quicker and costs
due to wear have been reduced.<o:p></o:p></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com8tag:blogger.com,1999:blog-4001682024610705273.post-35055317084528294812014-07-28T13:48:00.000+02:002014-07-31T13:49:27.035+02:00Oxy-fuel three burner unit and distance measurement Wouldn't it be ideal, if the distance in bevel cutting would be exactly measured and controlled. However, this is a challenging task.<br />
<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCfj87V6TuGY4k-SNSzgC4HByk3dTO9RMwVLxaACvDTcIvCUH-0wQXkVtlg0-TcFYH21-FUzt7G3iUlaaZKDI2f8eMsVk10K88wbr0AII3rpEqc0DVO3o7guY0VY95FY9PsteY83HzJ0k/s1600/Plate-sensor.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCfj87V6TuGY4k-SNSzgC4HByk3dTO9RMwVLxaACvDTcIvCUH-0wQXkVtlg0-TcFYH21-FUzt7G3iUlaaZKDI2f8eMsVk10K88wbr0AII3rpEqc0DVO3o7guY0VY95FY9PsteY83HzJ0k/s1600/Plate-sensor.jpg" /></a>First, a constant distance is extremely important for a clean cut and secondly exist extremely high temperatures in triple torch burner units.<br />
<br />
With the PLATE SENSOR IHT Automation provides here an approach for solving this problem. The electrode is air-cooled and this air flow makes sure that the distance measurement is only minimally affected by the cutting flame and the dielectric.<br />
<br />
The sensor system CSC 500 ensures that the set distance is measured correctly and the motor controller of the linear drive delivers a precise signal.<br />
<div>
<br /></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com2tag:blogger.com,1999:blog-4001682024610705273.post-29999636201953330262013-02-04T12:26:00.000+01:002013-02-15T10:59:15.663+01:00Ignition system for gas cutting machines<div class="MsoNormal" style="line-height: normal; margin: 0cm 0cm 10pt;">
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; mso-ansi-language: EN-GB; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">To increase the productivity of oxy-fuel gas cutting machines, automatic ignition devices are often installed. </span></div>
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<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; mso-ansi-language: EN-GB; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">However these internal ignition systems can sometimes cause problems to, or be affected by other parts of the cutting machine. </span></div>
<div class="MsoNormal" style="line-height: normal; margin: 0cm 0cm 10pt;">
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; mso-ansi-language: EN-GB; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">Many users have experienced problems caused by piezo igniters or the 20kV ignition voltage that is developed at the burner tip. </span></div>
<div class="MsoNormal" style="line-height: normal; margin: 0cm 0cm 10pt;">
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; mso-ansi-language: EN-GB; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">Others have systems where variations in gas pressure extinguish the flame which then requires re-ignition. To overcome these problems and others, IHT Automation has now developed its own ignition system that is impervious to external effects and will provide your machine with a simple and robust ignition mechanism. </span></div>
<div class="MsoNormal" style="line-height: normal; margin: 0cm 0cm 10pt;">
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; mso-ansi-language: EN-GB; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">Ask IHT for more information: <a href="mailto:sales@iht-automation.com">sales@iht-automation.com<o:p></o:p></a></span></div>
Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com2tag:blogger.com,1999:blog-4001682024610705273.post-17463733492076992212012-11-07T10:37:00.000+01:002013-02-15T11:00:10.534+01:00Initial position finding when cutting with plasma<br />
Modern systems for cutting thin sheet metal are normally equipped with a tactile position sensor for establishing the initial position by physically making contact with the sheet. <br />
<br />
Major manufacturers of plasma systems equip their cutting torches with what is known as a contact sensor and the IHT M 400 PCS Height Control system has a compatible input that accepts this signal. <br />
<br />
For those cutting systems that do not have a built in contact sensor, IHT Automation has now developed its own contact sensor that can be fitted to any plasma cutting torch.<br />
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-21199700103401821372012-11-01T11:11:00.000+01:002013-02-15T11:00:23.110+01:00Comparison of cutting processes<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">These days many machine manufacturers try to explain the different cutting methods that exist in such a way that presents their method (and by inference their product) as being the best.</span><br />
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">Being independent, we know that choosing the right cutting machine equipped with the best cutting process is very difficult as there are many different systems on the market and many factors to consider when making your choice.</span><br />
<br />
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"><span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">Plasma cutting promises high productivity and high quality water jet systems are able to cope with a wider range of materials. Laser wins when talking about cutting thin materials, and because of its high speed, oxy-fuel cutting has a great advantage when it comes to cutting thick plates.</span></span><br />
<br />
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<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD-jEm4QEh7X2bovu7LchPjiQFCEyd9UkIEp4tn6rgiMGHwN5rjyDap5EjXk3TztOYqYeX4ECRLThIPwWebd81umAIq1uTu51EkU2UIxdRsXPzMHOwRGb93Q3N3Ne8K60pM6C4CR2uRfo/s1600/Vergleich_400x192-e.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" rea="true" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD-jEm4QEh7X2bovu7LchPjiQFCEyd9UkIEp4tn6rgiMGHwN5rjyDap5EjXk3TztOYqYeX4ECRLThIPwWebd81umAIq1uTu51EkU2UIxdRsXPzMHOwRGb93Q3N3Ne8K60pM6C4CR2uRfo/s1600/Vergleich_400x192-e.jpg" /></a></div>
<br />
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"><span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">However other factors such as the useful life of the cutting machine or the reduction of the amount of material which is wasted during cutting are seldom considered despite being highly important.</span></span><br />
<br />
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"><span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"></span></span><br />
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<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"><span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"><span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; mso-ansi-language: EN-GB; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">To help you make your choice, IHT's Telma Keppler has recently written a technical paper that reviews the current state of different cutting processes outlining their advantages and disadvantages, and it also covers several recent innovations in the oxy-fuel cutting industry. Copies of the paper can be obtained free of charge by emailing us at <a href="mailto:sales@iht-automation.com">sales@iht-automation.com</a>.</span></span></span></div>
<span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;"><span lang="EN-GB" style="color: #333333; font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE;">
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</span></span>Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-76496933762431122192012-01-27T09:53:00.000+01:002012-01-27T09:53:13.562+01:00Why does IHT offer two different system for plasma cutting?In each of its main ranges, IHT has two different variants for plasma cutting ( M 4000 ARC / C 1000 ARC and M 4000 PCS / C 1000 PCS). These two versions (ARC and PCS) differ in the way they operate, their levels of functionality and the number of cutting parameters that can be configured. Here I explain the difference........<br />
<br />
<br />
<strong>If you always cut the same material, choose ARC</strong><br />
If you are always cutting the same material, you are typically always using the same cutting parameters. In these circumstances, it would be inconvenient and time wasting to have to set the same parameters each time and therefore for this type of application we recommend using the ARC version. On ARC systems you can set the main parameters very quickly and easily and still get a very precise cut.<br />
<br />
<strong>If you have to cut different materials or different thicknesses, choose PCS</strong><br />
If you find yourself having to cut different materials or different thicknesses, then there is a need to be able to change multiple cutting parameters on a frequent basis. For this type of operation, a PCS system provides a flexible way of quickly entering the necessary settings.<br />
<br />
There is increased functionality with the IHT <a href="http://www.iht-automation.com/products/system-m-4000/m-4000-pcs/" target="_blank">M 4000 PCS</a> and <a href="http://www.iht-automation.com/products/system-c-1000/c-1000-pcs/" target="_blank">C 1000 PCS</a> height control systems where there is the additional possibility to transfer all the cutting parameters digitally from your CNC machine using CUTBUS®.<br />
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-41621184233635544642011-10-06T15:07:00.000+02:002011-12-05T18:01:01.737+01:00Why does IHT offer two different height control systems for plasma cutting?For some cutting applications, the quality of the finished cut is crucial, for others it less important. Therefore the leading manufacturers of plasma power sources have to offer different systems to meet both types of application and in turn IHT offer two types of height controls systems. <br />
<br />
Both the C 1000 series and M 4000 ranges have ARC and PCS variants, the main distinction between them being the number of parameters that can be set by the user in order to achieve the optimum cut. The precision and quality of the process flow is identical in both systems. <br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKfiBrzVueIIAi43fc8nGG4TlA4Qz8LfplRQf5MB_XqM0hUTIP4NSBrVD8ZOmSAdkADrKArQOn7Tw4pRshPwfhFadSVqOPeZ3CXIlyYqfo2AyzGZWJ4qQsTH5OIC9nbPjJJkwo8ne2rdk/s1600/Arc+Operator+Panel.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="134" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKfiBrzVueIIAi43fc8nGG4TlA4Qz8LfplRQf5MB_XqM0hUTIP4NSBrVD8ZOmSAdkADrKArQOn7Tw4pRshPwfhFadSVqOPeZ3CXIlyYqfo2AyzGZWJ4qQsTH5OIC9nbPjJJkwo8ne2rdk/s200/Arc+Operator+Panel.jpg" width="200" /></a></div>
With the <a href="http://www.iht-automation.com/products/system-c-1000/c-1000-arc/">C 1000 ARC </a>and <a href="http://www.iht-automation.com/products/system-m-4000/m-4000-arc/">M 4000 ARC</a>, local rotary controls are available for setting the cutting height, pierce height and the pierce time. This simplifies the task for the operator. <br />
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<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9gC35TAQIc8p0g59Gg_W7vu4xkF_Nwtpf56U_GaSXO_qFLFrNfmnqB37UjNu-GTj12reRy77Xv3tba7TTTp-KUhyMXqivIvACaQxA6M9q4zqc7rxkAbdR7zFjdZ7M-bl1qwrZdmzW6nk/s1600/IHT-100363-kl.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9gC35TAQIc8p0g59Gg_W7vu4xkF_Nwtpf56U_GaSXO_qFLFrNfmnqB37UjNu-GTj12reRy77Xv3tba7TTTp-KUhyMXqivIvACaQxA6M9q4zqc7rxkAbdR7zFjdZ7M-bl1qwrZdmzW6nk/s200/IHT-100363-kl.jpg" width="160" /></a></div>
For more demanding applications the <a href="http://www.iht-automation.com/products/system-c-1000/c-1000-pcs/">C 1000 PCS</a> and <a href="http://www.iht-automation.com/products/system-m-4000/m-4000-pcs/">M 4000 PCS</a> allow more cutting parameters to be set and adjusted. <<br />
<br />
This can be done using an operator terminal or there is the possibility to use the optional CUTBUS® interface that allows a CNC system to transfer information and settings direct to the linear drive, useful if numerous changes to settings are required.Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com5tag:blogger.com,1999:blog-4001682024610705273.post-89998637762929923542011-08-15T14:21:00.001+02:002011-08-23T14:30:16.918+02:00Why is earthing so important?The earthing of a cutting machine is always an important consideration and many users still do not understand its importance. Especially when cutting with plasma, a good earth is critical. Starting with a good connection to the structure of the building, a suitably sized earth cable needs to be connected to each machine.
<br />If this is not done then the reliability of the machine and the cutting quality will suffer. In our installation instructions, you will find all the important information that will help you achieve an excellent cutting result every time.
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-43404737112791493062011-07-12T14:20:00.001+02:002011-08-23T14:23:14.455+02:00Why is Cutting Height Mode (IHT Mode) so interesting?In plasma cutting the cutting height is controlled by the arc voltage with the arc voltage being proportional to the distance between the cutting torch and the workpiece. The voltage varies by about 3 volts per millimetre so for example at a cutting height of 3 mm the arc voltage is 9 V. The operating voltage is, however, set at 110 volts. With an applied voltage of 101 volts the torch would touch the plate and with 119 volts the torch would be at a distance of 6 mm .
<br />
<br />When you cut, for example, with settings of 100 Amps and 110 volts, the circuit resistance can be shown to be 1.1 ohms using Ohm's Law (R = V / I) . Imagine a cutting operation where one of the following is true; the workpiece is not lying flat on the table, the table is not properly earthed, a worn torch tip need to be changed or the work piece has been already repeatedly cut. All of these will affect the resistance in the plasma circuit. In my example just a change of 0.1 ohms will mean a change in voltage of 10 volts. Practical experience shows that the these variations in voltage can be up to 15 volts. This is where "cutting height mode" becomes of real interest because with this method it does not matter how big the difference is. Here we are setting the height and measuring the operating voltage. It always guarantees an exact cutting height and a consistently accurate cut.
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com2tag:blogger.com,1999:blog-4001682024610705273.post-81160953309153422142011-06-20T14:19:00.001+02:002011-08-23T14:23:02.017+02:00What is Cutting Height Mode?Cutting height mode, often called the "IHT mode“ is a better choice than the traditional "arc vol¬tage mode" because it is the all important clearance distance between the workpiece and gas nozzle that needs to be maintained not the actual arc voltage. As the nozzle wears, the clearance distance is maintained constant and therefore the clearance for all cuts is identical and the cutting quality is optimised.
<br />
<br />It is important to remember that "Cutting Height Mode" also provides protection for your wallet. Because the cutting settings are always correct, the cost of wear and tear on the equipment will be reduced. IHT have already been using this technique in its products for about 15 years, even if others may be claiming it is a recent invention.
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-49846961768406477272011-04-21T14:13:00.005+02:002011-08-23T14:22:28.910+02:00Differing degrees of automation in Flame Cutting in different countries<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgE60ztU5dYktL40oLx5-lyjsVbb4Ixlj3te85W8gi4yeS7ADTj8mv1RL0qugfABJg5MXFfKocjmj2TVu787J-8ckdgMKyiyXTUH-4Exdjn7QaNRECglMdN2Y8gftcYTnIFLwmWvbizS0Y/s1600/Autogen+ohne+Abtastung.JPG"><img style="MARGIN: 0px 0px 10px 10px; WIDTH: 200px; FLOAT: right; HEIGHT: 154px; CURSOR: hand" id="BLOGGER_PHOTO_ID_5644024514928758226" border="0" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgE60ztU5dYktL40oLx5-lyjsVbb4Ixlj3te85W8gi4yeS7ADTj8mv1RL0qugfABJg5MXFfKocjmj2TVu787J-8ckdgMKyiyXTUH-4Exdjn7QaNRECglMdN2Y8gftcYTnIFLwmWvbizS0Y/s200/Autogen+ohne+Abtastung.JPG" /></a>
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<br /><div>In certain countries like the USA, China and India the level of automation in the oxy-fuel cutting process is alarmingly low. The lack of automation means that most cutting machine operators are constantly having to adjust the cutting height or modify other cutting parameters. The oxy-fuel cutting process is more complex than most people believe and I estimate that only 10% of all people working with it actually fully understand the oxy cutting process. This is true for both machine builders and end users. Take for example the initial piercing of the metal, I am surprised that how often I see that the piercing process takes too long or that slag is sprayed in all directions. This is often simply due to the wrong gas settings being used.</div>
<br />Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-81518022330435195932011-01-27T15:22:00.004+01:002011-01-27T15:31:18.391+01:00What is the difference between capacitive and inductive distance measurement when cutting with oxy-fuel torches?Both measurement methods can be used to measure the distance between the torch and the work piece. However, there are differences between the two methods and they both have advantages and disadvantages that I would like to briefly explain.<br /><br />The first question is, am I cutting dry or under water? With a capacitive sensor, I can cut only dry as otherwise it is the distance to the water surface that is measured and not the distance to the workpiece. With an inductive sensor, the water has no effect on the measurement.<br /><br />A good capacitive sensor (<a href="http://iht-automation.com/index.php?id=395&L=1">such as one from the IHT range</a>) is both more accurate and more robust than an inductive sensor. Measurement accuracy is higher and the influence of temperature on the measurement is lower. Using an inductive method the cost of additional temperature compensation is very high.<br /><br />With a capacitive sensor I can automatically prevent a collision of the burner with the workpiece or any slag that has been produced; this is not possible with an inductive sensor.<br /><br />In summary, both measurement methods have their place but when oxy-fuel cutting, the capacitive method is always preferred. The only exception is when cutting underwater.Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-15018159549480501492010-12-17T14:24:00.000+01:002010-12-17T18:16:35.511+01:00How important is a well-tuned height control system?A good machine control system will move the cutting torch around the workpiece, this is what a CNC control system is designed to do. It is different when it comes to height control. The separation between the torch and the workpiece must be maintained at the correct distance. This requires more than simple x-y positioning; a height control system comprises both distance measurement, height control and control of the motor. The tuning of the various components ensures that you get a perfect cut.<br />Each system should be left to do what it does best, CNC should be used for x-y movement and the height control system used to move the torch vertically.Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-75770744686274117562010-12-07T14:00:00.001+01:002010-12-08T14:51:05.830+01:00How important is a height control system?During some of my visits to customers, I have seen installations where a high quality cutting machine is being used with the best plasma source but the height control system is either sluggish, not steady or cannot reliably maintain the correct distance between the torch and the workpiece.<br /><br />It isn’t said for nothing that the height control system contributes to at least one third of the overall quality and productivity of a cutting machineKurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0tag:blogger.com,1999:blog-4001682024610705273.post-41119719069192069282010-11-29T12:22:00.003+01:002010-11-30T08:58:48.798+01:00Why is it that in some countries, oxy cutting torches are often manually operated?I find it amazing that so many users operate machines where the distance between the oxy-fuel torch and the workpiece is adjusted manually. When I ask the question “Why?” the answer is often “We used to have an automatic control system but it gave up working after a few weeks”. What I would like to stress is that these were not clearance control systems supplied by IHT. Our systems work reliably over many years. <br />There are many reasons for using automatic clearance control systems, they increase productivity and quality, torches last longer, replacement parts costs less and there are no collisions between the workpiece and the torch.Kurthttp://www.blogger.com/profile/17372788241327569944noreply@blogger.com0