Infrared brazing utilizes focused light energy (typically from high-intensity quartz bulbs) to heat components to brazing temperature. In addition, focused light energy has the ability to heat non-metallic components because energy transfer does not depend on the generation of electrical currents within the assembly.
Advantages of Infrared Brazing
Metallurgically speaking, rapid heating, as well as a fast thermal cycle, may avoid the formation of brittle intermetallics. For instance, titanium brazing may use gold without encountering adverse filler alloy/parent material reactions which happen in the relatively slow furnace-brazing techniques.
Heat Non-metallic Components
Focused light energy has the ability to heat non-metallic components because energy transfer does not depend on the generation of electrical currents within the assembly. Furthermore, the focused light energy typically comes from high-intensity quartz bulbs to heat components to brazing temperature.
A transparent quartz chamber or retort normally surrounds the assemblies. In addition, in some instances, atmosphere containment uses a thin-walled refractory tube, but heating rates are generally slower.
Fast Thermal Cycle
Rapid heating and cooling rates are possible. In fact, it achieves a significantly higher heating rate than furnace brazing. As a result, it is suitable for meeting high production requirements.