newbie tig weldier

[1999tig]

i have just started tig welding and am having what i think is a bit of a problem.
when welding mild steel i am having spatter like i am welding with oxy acetylene any ideas why? got the argon set to 5 lpm welding 3mm steel on 90 amp to start with and down to 80 when the steel has warmed up.

 

[1999tig]

oh rods are fer70s-2

 

[shenion]

TIG requires the metal be spotlessly clean; could be you may still have mill scale or some coating on the steel.

You might try a bit more gas; I use 6-8LPM.

Pictures would help.

You are using pure argon for gas?

 

[1999tig]

yep pure argon will get pictures up in a minute

 

[1999tig]

it only splatters when welding it doesn't show up on the steel. it could be normal but i dont think it is.

 

[Brad93]

Dirty steel.

 

[1999tig]

Dirty steel.

yep that was the problem

 

[1999tig]

just bought some rods they say r45 on them can i use them fr tig welding??

 

[Wozzaaah]

Pretty sure they're gas welding rods so no.

 

[Paul.]

They are oxy acetylene welding rods, although some people swear that they get good results using gas rods for tig, they lack the deoxidising agents that proper tig rods have, and are likely to produce porous welds, and a sluggish weld pool.

 

[zardoz]

R45 is a Oxy acetylene road. 45 stads for 45000 pounds weld strength. it doesn't contain the fancy silicone and deoxidizers that are needed to give a pin hole free weld with the more demanding TIG process.

However for a bit of rough and ready steel welding it might do, you cant tell till you tried it.

ps: Really you want to make sure you know which rod your getting before you nip them.

 

[1999tig]

R45 is a Oxy acetylene road. 45 stads for 45000 pounds weld strength. it doesn't contain the fancy silicone and deoxidizers that are needed to give a pin hole free weld with the more demanding TIG process.

However for a bit of rough and ready steel welding it might do, you cant tell till you tried it.

ps: Really you want to make sure you know which rod your getting before you nip them.

yes i got them from ebay the were called tig rods but they're not and they don't weld very well either.
thanks for your help

 

[Wozzaaah]

Send them back and get a refund under 'item not as described'.