So currently looking at the SIF fluxes, as far as I can tell it comes in two flavours No 14 or No 36. Ones higher temperature than the other, which would be the better option?
Generally when we build bodies we use gas welding. Tig welding can leave a harder area around the weld so in a few years time the metal becomes fatigued and cracks. So you have to use gas welding, so far I'm getting it to work but I'm still blowing occasional holes, a lot more practice needed...
Generally Ali bodywork, so thinnish sheet Ali. I work with old cars most of the time. I would love to be able to do castings but I'm guessing that's probably best kept to the Tig?
I have actually tried gas welding aluminium but I used Tin Man Technologies own flux, unfortunately I've run out now and I can't afford the postage of it so looking for an alternative. SIF might be the way
Not sure it is for a carbon arc torch, I'm pretty sure it mentions something about battery charging on it. I'm not actually with the welder until next week but I'll get a picture then and check properly what it says .
If it is for a carbon arc torch. Please excuse my ignorance but what are they...
I was wondering whether someone may be able to shed some light here. I have an old Oxford bantam transformer welder. Its one of the ones with a fourth terminal on it for battery charging supposedly. I was just wondering how this was setup within the welder? How is the current and voltage...
Christ, that brazing flux is expensive!
Had originally hoped to not bother with the oxygen bottle as that would just add to the expense kind of not making it worth it for me. When you say with air do you mean a separate bottle or just a standard turbo blowtorch?
Low temperature brazing...
So, I'm a bit new to this type of soldering/brazing stuff. I've got a decent plumbers blow torch that uses MAPP gas (I use it for automotive work, i.e. heating stubborn stuff). However I was wondering whether I might be able to use the torch for other projects? In particular would love to start...
Yeh, not worried about it, just it won't really be that useful if blowing off at 55psi!
My fittings to connect my grease gun to my tank are hopefully in the post, hopefully they won't leak too much!
That's what i was thinking, it looks like it's fairly set but the addition of the padlock seems a bit odd. I'd rather not adjust it and potentially ruin it when i can just buy a new one at 145psi for not very much money
Me again...and guess what, more questions!
Currently acquiring all the goods to hydro test the tank. Got hold of a spare 3 phase socket so going to test the motor when I next back to it then I can order a pressure switch.
Anyway, whilst gathering all the needed blanking plugs and fittings to...
Oh apologies, thought you were talking about the actual compressor itself. I'll have a look and clean it up when I next get to it but i doubt a weld like that would disappear entirely if I'm honest. Anyway, when i next get some free time I'll clean it up and we'll go from there!
Very true, do need to get it powered up, unfortunately I'm away at university now for a while so not going to be able to get to it for a bit. But going to source the parts to get the thing spinning (belts, wiring and switch) and then hopefully we'll be able to get it going when I next get to it...
Right, more questions, what to these giant grub screws do! They have captive nuts that cover them up and seem to lock them in place. Some sort of adjustment to valves or something?
I'm looking at the two grub screws on the side of the low compression head. They stick out horizontally.
Sorry...
They're big rubber flat oval thingys. The current ones really don't have any give left and probably won't seal. I had a look online and they seem to be almost £20 each and there's 2 of them!
I'll go get them measured and see whether i can find a cheaper source
Ah thanks, will look into that. To be honest it's most likely to burst at the bottom which is going to be where the water is anyway. I can't say I have a pump that'll do 300psi, I'll go see what I can find!
Oh right, very surprised you all class that as ok, I'll give it a pressure wash, to be honest I think I may as well just leave it uncoated and keep it well drained. It'll last a while then when the time comes, won't take the chances and will get a new tank. With pressurised air, I wouldn't be...
Right sounds good, I'll go tappy tappy then. How do you recommend I clean out all the sludge from it, is it a gravel and rotator job or am i better off pressure washing etc. Do i then need to coat the inside? What do you all recommend.
Thanks very much for all the advice, very much...