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Old 14 June 2010, 03:15   #31
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Can Argoshield be bought in small cylinders? The ones I remember are about the same size as an oxy bottle.
Yes and they work out cheaper or so BOC said the other week

BOC did me a deal on an inverter set and the bits to make it into a tig for stainless.
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Old 14 June 2010, 04:17   #32
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Yes and they work out cheaper or so BOC said the other week

BOC did me a deal on an inverter set and the bits to make it into a tig for stainless.
What sort of deal? I suppose we're talking something more industrial than the sort of thing I have in mind?
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Old 14 June 2010, 04:37   #33
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What sort of deal? I suppose we're talking something more industrial than the sort of thing I have in mind?
And more money than you'll want to spend
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Old 14 June 2010, 04:55   #34
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What gas would be used with these sets? Argoshield?

Can you get straight Argon argoshield then? IIRC it was called something different? I might be wrong but i thought Argoshield was just the mixed gas for welding steel, and plain Argon for ali and stainless had another trade name?
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Old 14 June 2010, 05:54   #35
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And more money than you'll want to spend
Yes, lots more.
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Old 14 June 2010, 06:14   #36
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Hold up .. I'm lost now .. I thought this was a stick set No gas ?
Bigmuzy, it can do both stick welding and TIG welding. Some sets have a function to prevent the need to scratch start the arc. Scratch starting contaminates the tungsten and lowers its melting point. It doesn't stop you welding but the flame shape isn't well controlled so welds are often less pretty. Flame? well yes, the arc through the argon produces the equivalent of a flame.
If you can gas weld, you'll be able to TIG weld.

If you are used to big stick welders the small size does seem unrealistic for welding but transformers are more efficient at higher frequencies so a smaller transformer can be used to do the same work if run at a higher frequency. Instead of the the mains 50Hz, the inverter produces a high frequency which is used to feed the transformer. They still have a duty cycle though so if you do lots of welding you need to check that out.
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Old 14 June 2010, 07:44   #37
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[quote=They still have a duty cycle though so if you do lots of welding you need to check that out. [/quote]

The 200 amp ones on fleabay claim 100% @150amps i thought that was fairly good.
better than the el-cheapo transformer stick sets.
i had an old SIP non fan cooled 140 amp one, on a hot day that would burn one 3.25mm then sulk for an hour!!
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Old 14 June 2010, 08:01   #38
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The 200 amp ones on fleabay claim 100% @150amps i thought that was fairly good.
Very good. If you're using it for TIG boat stuff, you'll rarely be more than 50amps.
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..better than the el-cheapo transformer stick sets.
i had an old SIP non fan cooled 140 amp one, on a hot day that would burn one 3.25mm then sulk for an hour!!
Yep, I've still got one o them, came from Asda about 30 years ago.
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Old 14 June 2010, 09:54   #39
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Very good. If you're using it for TIG boat stuff, you'll rarely be more than 50amps.
Yep, I've still got one o them, came from Asda about 30 years ago.
Ive still got one too, not my oricinal sip though, its a newer clarke 50% duty at 120A....its got a 6" 150 watt cyclone axial fan lashed on the back though! its damn near 100% duty cycle nowwhen flat out at 190A
need to remember to turn it off though when using the mig as well , the arc welder will blow the gas away across the garage noisy too,

The other proplem with the 190 amp one too it really too big for a 13 amp socket. still cant blow a fuse if you aint got one!
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Old 14 June 2010, 10:59   #40
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Can you get straight Argon argoshield then? IIRC it was called something different? I might be wrong but i thought Argoshield was just the mixed gas for welding steel, and plain Argon for ali and stainless had another trade name?
You can use argoshield for stainless with no worries-when I was training on tig we used nothing else at the college.
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