Vacuum Annealing Furnace

Vacuum annealing furnace is mainly used for continuous bright annealing, solid solution, demagnetization and stainless steel quenching of stainless steel products such as water heating equipment, water expansion parts, pins, medical equipment, stainless steel nails, stainless steel screws, riveting parts, stainless steel bearings, watch case, watch strap, cutting tools, micro shaft, self tapping and self drilling, tableware, etc. under the control of protective atmosphere.

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Technical Data

Horizontal (vertical), single chamber structure design, circular heating chamber structure;

The air cooling system can adopt built-in fan or external circulation fan;

Pressure rise rate: 0.067-0.67pa/h;

Vacuum regulation anti pollution and online replacement technology;

Heating element with patented structure;

Temperature measuring thermocouple feeding device with patent structure;

Temperature control thermocouple with patented structure.

Specifications

model	VHAgr-40/40/60-1300	VHAgr-50/50/70-1300	VHAgr-60/60/90-1300	VHAgr-80/80/120-1300	VHAgr-90/90/150-1300
Active workspace（mm)	400x400x600	500 x 500x700	600x600x900	800 x 800x1200	900x900x1500
Charging capacity	150kg	300kg	500kg	1000kg	1200kg
heating power	70KW	90KW	120KW	240KW	300KW
maximum temperature	1300℃
Temperature uniformity	±5℃
Limit vacuum	≤4x10^-1 Pa OR ≤6.7x10^-3 Pa
Pressure rise rate	<0.67Pa/h
Heating chamber structure	Square /round
Material of heating chamber	Graphite / Mo/ heat resistant stainless steel
control mode	Manual / automatic

Application

It can effectively improve the defects and residual stress in the process of casting, forging, rolling or welding, and prevent the deformation and cracking of the workpiece;

The annealing furnace can also soften the workpiece for cutting and machining;

The mechanical properties of the workpiece are improved by refining the grain and improving the microstructure;

It can be prepared for the final heat treatment of quenching and tempering points.