Induction Brazing Shaft
Description
Induction Brazing Shaft and Carbide with High Frequency Induction Brazing Heater
Material :Cone shaped carbide 1.12″ (28.4mm) dia, 1.5″(38.1mm) tall, stainless steel shaft 1.12″ (28.4mm) dia and various length, black brazing flux and braze shims
Temperature : 1500 ยบF (815 ยบC)
Frequency: 300 kHz
Equipment:ย DW-UHF-10 kW induction heating system, equipped with a remote workhead containing two 1.0ฮผF capacitors for a total of 0.5ฮผF
โข An induction heating coil designed and developed specifically for this application.
Process:
A three turn helical coil is used to braze the carbide to the shaft. The steel shaft is fluxed and the braze shim placed on top. The carbide tip is fluxed and placed on top of the shim, lining up the countersunk hole in the carbide. The hole is not fluxed because the flux outgases and causes the carbide to build up pressure and attempt to repel from the shaft. Power is applied for 85 seconds for the braze shim to flow and make a good joint.
Results/Benefits Induction heating provides:
โข Rapid localized heating only where needed
โข Creates clean, controllable joints
โข Hands-free heating that involves no operator skill for manufacturing
โข Even distribution of heating
