Gallery, Projects and General > How do I??

Brazing

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JohnsonMatthey:
Good to hear DavidA, the main thing to focus on (if you are using a compatible flux and alloy, which most "common" ones will be) is to accommodate the cooling stresses. This gets more important the larger your carbide pieces are.

Some things we tell our customers would be to not place the still-hot, just-joined parts onto a large (cold) steel slab to cool and definitely never to quench in water which carbide is involved. Minimum should be air cooling, if you can put them into something which will further slow the cooling rate down, such as vermiculite, a hot oven etc., then this will further help prevent cracking.

Good luck.

howsitwork?:
brilliant advice- I always wondered about the copper foil- I was told it was to cushion the carbide in use - which always struck me as odd! :med:

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