Oxy-Acetelyne Brazing
Oxy-Acetelyne Brazing
(OP)
1. How much pressure should be kept for Oxygen & Acetelyne in Brazing? how it affects on Quality?
2. How to eliminate Brazing Porosity?
2. How to eliminate Brazing Porosity?
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RE: Oxy-Acetelyne Brazing
For porosity, you could have too active a flame - it should be "quiet", not hissing, you could be holding torch too close, try a larger size, you could be overheating the metal, hold torch farther away or try a smaller size.
Blacksmith
RE: Oxy-Acetelyne Brazing
Porosity can be a surface cleanliness problem, trapped flux or overheating of the braze alloy which can boil out zinc, for example.
We have brazing info including some good pictures at www.carbideprocessors.com
tom