has anybody ever taken a test for a shipyard concerning the above title. i have taken 3-g ceramic but not 4-g. i would think i would just use less amps than flat?
Reply:never taken it but in that should work.Air vantage 500 on the 08' KWharris torchesl25 pro suitcasecomletely restored 1969 SA200 redfaceon my 08' duramaxPIMPN AINT EASY
Reply:hey alum. ive takin 3g and 4g but never with ceramic backing. i didnt change my amps much, maybe a little lower. is someone asking you to test for a job?MM 251MM 135Lincoln Pro cut 55Bobcat 250Miller Thunderbolt ac/dcolder ac forneyJackson nexgen 3n13-Smith OP setups97 Dodge dieselMakita chopsawJet swivel head bandsawlincoln tig 300/30030a spoolgunpuma port. gas air comp.
Reply:I would keep the amps just about the same. I have done a ton of FCAW welding with ceramics. Most of it Nr232 either at .072 or 5/64 wire size. Some Nr233 as well but mostly Nr232. You may have to intermittant weld but that should not be a huge issue if you know what your doing. If the heat is to low you are not putting enough filler wire in and you are just heating up the ceramic. To much heat and they just dissentagrate. The other thing I would say is to try not to pay attention to the weird little shmeg of slag that seems to form in front of the puddle when you use ceramic. The test is pretty straight ahead. Get a good root and after that its cake. Make sure the ceramic is nice and dry or you will end up with pin holes in the *** end of the root pass.Like I said don't go to low on the amps/volts or you will just heat up the ceramic and it will just disappear before you have a chance to lay enough filler metal in the groove.'Mike
Reply:Originally Posted by ironman715Like I said don't go to low on the amps/volts or you will just heat up the ceramic and it will just disappear before you have a chance to lay enough filler metal in the groove.'Mike