Low tempering furnace

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Low temperature tempering furnace: the main purpose of the metal parts of normalizing, annealing, quenching. The furnace energy-saving electric furnace using lightweight refractory brick and refractory fiber. 1200 ℃ for metal or alloy steel parts quenching.

Process of low temperature vacuum back furnace:

1. Use the equipment with computer continuous monitoring and can automatically adjust the liquid nitrogen intake and the automatic rising and cooling cryogenic treatment tank.

2. The processing process of the process is composed of three procedures, such as temperature cooling and temperature insulation.

The reasons for the advanced performance of cryogenic treatment are as follows:

1. It transforms the low hardness of austenite into a more rigid, more stable, abrasive and heat resistant martensite;

2. Through ultra-low temperature treatment, the lattice of the treated materials has a more extensive distribution of higher hardness and finer granular carbide particles;

3. In the metal grains, it can produce even more uniform and small tissue with a larger density.

4. Due to the addition of microcarbide particles and a more dense lattice, a denser molecular structure has been developed to make the small hole in the material greatly reduced.

5. The thermal stress and mechanical stress of the material are greatly reduced after ultra-low temperature treatment, thus effectively reducing the possibility of causing cracks and broken edges of tools and tools. In addition, because of the influence of residual stress of tool cutting edge’s capacity to absorb the kinetic energy, after cryogenic treatment of the cutting tool not only has high abrasion resistance, residual stress and its harm than untreated tool greatly reduced;

6. In the cemented carbide, a new combination of molecular structure is generated due to the reduction of electron kinetic energy.