Material suggestion for brazing fixture, Please?

[tomwalz]

We braze tungsten carbide and ceramics at about 1500 F. We are looking for a rod we can use to move parts around at these temperatures.

A rod maybe 10” long by ¼” diameter (.250”) that we can use to move parts around.

A steel file works fine but gets hot. We are using porcelain rods we get at a ceramics supply store but they are $3.75 each and snap readily. We had a tungsten rod recommended but a 7” long by 1/8” diameter rod was $8.25 at the welding store.
Something cheap and strong enough not to snap too readily.

Thanks,
Tom



Thomas J. Walz
Carbide Processors, Inc.

http://www.carbideprocessor.com

 

[MintJulep]

Glass?

 

[unclesyd]

We use Silicon Carbide in a similar endeavor. At first we used some SiC heating elements but settled on SiC kiln furniture, rods, similar to these.

http://www.carbo.com/applications/kiln1.php

 

[strokersix]

How about Alumina tubing? It's readily available in various sizes.

 

[rorschach]

Another possibility would be TTZ (Transformation Toughened Zirconia) it would be much less likely to break/snap than alumina. And it is suprisingly impact resistant for a ceramic. You can hit it with a hammer and not break it. As to it's cost/availability in rod form, I really can't say however.