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Bellman Melcor

How do I ensure against voids in brazed joints?

The key to any good braze joint is a tightly controlled process -follow the same good brazing practices on every brazed assembly every time. This means each joint should be properly designed with good clearance, all metals should be clean and free of contaminates, braze assemblies should be aligned or otherwise fixtured so that proper capillary action can occur, metals should be properly fluxed, compatible brazing alloy filler metal should be applied in the precise minimum volume required, the assembly should be heated in a way that draws the molten brazing alloy into the joint in order to achieve a proper seal (never direct heat onto the surface of a joint!), and always remove residue left behind by corrosive fluxes to prevent post-braze corrosion.


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7575 West 183rd Street
Tinley Park, Illinois 60477

Toll Free: 1-800-367-6024 | Fax: 1-888-BRAZE-IT (272-9348) |