Vacuum brazing furnace structure

Vacuum brazing furnace structure

Vacuum brazing furnace is processed workpiece heat treatment of a large equipment, can undertake vacuum annealing, vacuum limitation as well as vacuum brazing and so on heat treatment processing. Vacuum brazing furnace can write a variety of different applications, can also control and write hundreds of curve of heat treatment, its temperature control zone can be roughly divided into before and after the up, down, left, right, and the six partitions, vacuum brazing furnace installation has a single point and multi-point temperature protection device and temperature recorder, and the uniformity of furnace temperature can be controlled in the range of fluctuation of 3 degrees Celsius, in addition, also strong cooling device with high flow, high purity nitrogen. The vacuum brazing furnace has high efficiency and high furnace quantity.
Vacuum brazing furnace is mainly used in aluminum vacuum brazing, titanium alloy, stainless steel, high temperature alloy, hard alloy and nonferrous metal brazing, and die steel, stainless steel, high speed steel and bearing steel materials such as vacuum tempering heat treatment.
Vacuum brazing furnace structure:
Vacuum brazing furnace consists mainly of heating room, vacuum chamber, pump system, control system and heat exchanger. The pump system consists of the maintenance pump, mechanical pump, diffusion pump, and the rotz pump. Valve consists of pneumatic valves such as high valve, front stage valve, maintenance pump valve and by-pass valve. The heating chamber consists of heating chamber shell, heater, reflector, insulation, hearth and electrode.
When the vacuum brazing furnace works, the mechanical pump, the diffusion pump, the pump and the front stage valve, the pump valve, and the pump valve begin to vacuum in the diffusion pump. When the vacuum in a vacuum brazing furnace reaches a certain value, the rotz pump, the bypass valve starts and the front valve closes, and the vacuum chamber is evacuated. When the diffusion pump is heated to the specified temperature, the bypass valve closes, the high valve and the front valve open. The heat treatment process can be carried out after the vacuum chamber is vacuum and the vacuum degree is required.