furnace brazing
Furnace brazing is a technique for joining metals where two or more metals are joined using a filler metal that melts above 450°C and below the melting points of the base metals. In the temperature-controlled furnace, the job is heated uniformly, resulting in clean, strong joints that need no flux in most cases. It is useful for creating repeatable, very high-quality joints in complex assemblies.
Key Features:
- Controlled Atmosphere: Furnace brazing is conducted in a vacuum or a protective gas environment such as argon or hydrogen to prevent oxidation, contamination with minimal surface discoloration.
- Equal Heating: The temperature is maintained uniformly across the parts in order to provide equal strength for the joint.
- Flux-Free: Because of the clean and oxygen-free furnace atmosphere, many brazing processes do not require flux.
It finds its applications in the aerospace, automotive, and HVAC industries, where it is important to obtain precise, reliable, clean joints. The ability to work with intricate geometries and batch processing makes it suitable for production in large quantities.