Sorry forgot to add
1.2 mm wire
Doors shut
Also sometimes while tacking the problem happens
But not on the first tack but on later tacks when you would think that a decent return had been established
I will ponder some more!

Ok, Pulse to me sounds a little like a massive bumble bee! When my problem starts,it seems to revert to a bad weld setting with spatter flying around almost like what happens when you forget to turn the gas on! Although there is no visible porosity. The pulse setting is 4.2 m/min wire(so approx 40x4...

I have just "invested" in an otc welbee pulse mig after many years using a reliable transformer cv welder. Lots of practice on the bench has yielded good results with the different types of pulse.but when I am fabricating 4-5 m long frames SOME of the welds are acting strange while I am la...

Finished and buried, surrounded by concreteslabs!

Box with contents before purge Purged box in stainless Lead box ready for burial

Hello, After a lot of distractions I have finally got to grips with a bit of lead(pb) tig. First, large ceramic lots of argon(similar to o/a gas envelope) Amps down to 7(inverter won't go lower) Melt lead filler into weld pool similar to traditional lead welding Remembering to Scrape not brush surfa...

Finally got around to fabricating plastic box Second photo shows stainless top with hdpe gasket sandwiched inbetween two s.s layers Box is water tight to top,will test for full top seal up to about 1 bar.
To be continued....

If argon could be the answer to time CAPSULES maybe it is also the answer to time TRAVEL hohoho!

Have got a plan! Fabricated highh density polyethylene box with items in seperate bags,argon purge,seal. Stainless steel box inset lid purge, then welded except lid. Lid off,wrap hdpe box in heatproof mat(not sourced yet). Inset lid back in(not sure if purge now needed as the seam is upstanding from...

Hi, Have not figured out what the atmospheric conditions will be inside the box.But now I have been told it is going to be 100 years the box is going to be 3mm(1/8) 316 sealed by welding, then covered in code 8(3.5mm) lead sheet lap welded all round. I am wondering if the heat generated by the final...

Hello,
Noddybrian your electrolytic cleaning pad sounds interresting,how is the connection made between the power
source and the fibre pad ?

Thanks for the advice.Have you finished opening the egg yet!

Hello I have been asked to fabricate a time capsule which would be underground for 50 years. I am thinking that stainless steel would be the right material to use(316),but am a little unsure as to whether an argon purge when fully sealing it would do in removing the oxygen. Or would silica gel type ...

Thank you Mike, Have also tried on straight polarity and this works also.The lead needs a good scraping first and I reckon that I could be running at 10 amps or less (although my transtig has a percentage of amps rather than exact amps) Not sure how much call there is for lead welding in usa,not muc...

Hello,
Have sucessfully welded lead with oxy/acet,decided to try with tig dc+ good fusion but not as prettyas gas.
Has anyone else tried this?