Exothermic Brazing

[FH]

Dear All,
I need to know about the graphite used in molds for exothermic brazing process.

Farzad

 

[unclesyd]

Are you talking about an exothermic process like CADWELD or THERMOWELD?
If so the molds are made from a fairly dense graphite block and are usually machined except in the case of the smaller ones that my be compacted. I don't know which process is used to get the block.
We purchased the molds from the manufacturer of the welding powders and usually got 50-100 shots out of each mold.

If you have a different process in mind or need a special you might give these people a call.
I imagine there are quite few of the graphite producers that handle you requirements.

http://www.graftech.com/GrafTech/Home/Default.htm

 

[SJones]

A Google search using "aluminothermic welding" should get you somewhere.

Steve Jones
Materials & Corrosion Engineer

http://www.pdo.co.om/pdo/