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#1 Posted : 08 July 2009 10:48:00(UTC)
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Posted By Diane Thomason Hi all, Does anyone here have experience of discontinuing the use of oxyacetylene in their organisation, and using other processes instead? I'm aware of the issues of hazards/control measures etc. surrounding oxyacetylene, oxypropane, arc welding and so on. I just wondered if any of you had been involved in a decision to stop using acetylene. What was the rationale and what was the effect on the organisation's work? Conversely, has anyone decided that acetylene is essential for certain processes? Thanks in advance for any tales you can tell. Diane
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#2 Posted : 08 July 2009 11:08:00(UTC)
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Posted By Bob Youel There are other substances [Propane & similar] that do a very similar job that are initially *cheaper but for real quality and speed 'A' was seen as best in many areas [*The accountants only looked at very base costs!] You can go away completely to different technologies e.g. Plasma cutting [P will not warm up for bending etc] I advise that you undertake a complete job task analysis combined with a proper cost benefit analysis to allow am informed decision to be made
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#3 Posted : 08 July 2009 11:20:00(UTC)
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Posted By Kevin Drew Diane, We use a lot of oxy-petrol cutting which is allegedly safer but that isn't specifically why we use it. Generally speaking it's horses for courses, whether it be oxy-acetylene, oxy-petrol, plasma arc or even powder cutting, they all have different uses depending on the materials or the circumstances in which you are cutting. To my knowledge, there is no one method suits all. Kevin
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#4 Posted : 08 July 2009 14:04:00(UTC)
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Posted By Diane Thomason Thanks for both responses chaps. I was looking for some info on people's experiences prior to a more detailed discussion in our organisation. Can I ask you another thing - leaving the costs aside, are there many applications where propane can't do the job and acetylene definitely can? Also - Kevin, how does petrol compare? We have no "unusual" materials to be cut or welded as far as I know. cheers Diane
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#5 Posted : 08 July 2009 14:32:00(UTC)
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Posted By tdunbar Diane Are you trying to remove or reduce the acetylene risk?
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#6 Posted : 08 July 2009 14:38:00(UTC)
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Posted By Alexander Falconer Hi Diane Been some time since we last spoke, however if you email me on my contact details I may be able to help you! Alex
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#7 Posted : 08 July 2009 14:41:00(UTC)
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Posted By Flic I believe that the higher flame temperature of the oxygen/acetylene mixture is needed to weld steel. Unfortunately I don't have the definitive data easily to hand. Flic
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#8 Posted : 08 July 2009 14:48:00(UTC)
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Posted By tdunbar Thats what I was advised when investigating a substitute Flic.
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#9 Posted : 08 July 2009 15:30:00(UTC)
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Posted By Bob Youel A is quicker and leaves a cleaner cut etc in like for like cases than Propane
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#10 Posted : 08 July 2009 15:39:00(UTC)
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Posted By Diane Thomason Thanks for all the responses, Diane
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#11 Posted : 08 July 2009 16:13:00(UTC)
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Posted By Kevin Drew Diane, Oxy-petrol or Petrogen is great for cutting laminates or steel backed with concrete both of which are very difficult with oxy-acetylene. The flame is apparently much more compact with oxy-petrol. Additionally, you only need to carry around 5 litres of petrol compared with relatively large bottles of acetylene with all their inherent problems. We've used it extensively for the size reduction of steelwork prior to demolition. The Petrogen website is as good a place as any to start if you're interested. No good for welding though. Kevin
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#12 Posted : 08 July 2009 18:18:00(UTC)
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Posted By John Donaldson Hi Diane If you still have access to Hasnet have you tried an enquiry on there? I know a number of Universities were looking at the use of acetylene and its replacement for some applications. Also how to deal with acetylene where its use could not be discontinued such as GLC’s Apologies if you are not the Diane I remember from my Uni days John
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