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What is the working principle of vacuum annealing furnace

2022/4/14 13:17:04

Vacuum annealing furnace, mainly suitable for stainless steel deep drawing parts such as plumbing equipment, water expansion parts, pins, medical equipment, stainless steel nails, stainless steel screws, pressure riveting parts, stainless steel bearings, watch cases, watch straps, knives, miniature shafts, automatic It is a multi-purpose furnace for continuous bright annealing, solid solution, demagnetization and stainless steel quenching treatment of stainless steel products such as self-drilling and tableware under the control of protective atmosphere.


Mainly suitable for stainless steel deep drawing parts such as plumbing equipment, water expansion parts, pins, medical equipment, stainless steel nails, stainless steel screws, pressure riveting parts, stainless steel bearings, watch cases, watch straps, knives, micro shafts, self-tapping and self-drilling, Multi-purpose furnace for continuous bright annealing, solid solution, demagnetization and stainless steel quenching treatment for stainless steel products such as tableware under the control of protective atmosphere. After treatment, the surface of the product is smooth, non-oxidized and non-decarbonized. It has the advantages of high production efficiency, low energy consumption, less pollution, convenient operation and use, and low labor intensity. It can also be used for brazing and sintering of metal materials. The most advanced products abroad in the early 1990s.


The vacuum annealing furnace uses a halogen infrared lamp as a heat source to rapidly heat the wafer or material through an extremely fast heating rate, thereby eliminating some defects in the wafer or material and improving product performance.


The vacuum annealing furnace adopts an advanced microcomputer control system and PID closed-loop temperature control, which can achieve extremely high temperature control accuracy and temperature uniformity.


Structural features: The heating chamber is made of stainless steel skeleton, and the heat shield is made of multi-layer graphite felt, which has a long service life and is easy to maintain. Using graphite tube heater, easy installation and maintenance, low failure rate. The air cooling system is composed of a high-power high-speed motor, a high-pressure impeller with a large air volume, a volute and a deflector, a copper tube and copper string heat exchanger and a diversion device, etc. High-speed circulation of the workpiece-heat exchanger for rapid and uniform cooling of the workpiece. The heating chamber can also be of all-metal construction. The electronic control system adopts PLC and programmable temperature controller to realize three control modes: automatic, semi-automatic and manual, and the operation is flexible.


Uses: Mainly used for vacuum heat treatment, vacuum brazing and vacuum sintering of high-speed steel, hot and cold working die steel, stainless steel, elastic alloy, high temperature alloy, magnetic material and titanium alloy.


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