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Vacuum heat treatment

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2024

Precautions for powder metallurgy heat treatment

The core of heat treatment of powder metallurgy parts is temperature control. Due to the high porosity of powder metallurgy parts, deformation and cracking are easy to occur at high temperatures. Therefore, it is necessary to strictly control the heating temperature and holding time according to the heat treatment requirements of different materials to prevent thermal deformation and cracks of the parts.

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2024

Method of heat treatment of stainless steel

The current industry is getting more and more developed and the requirements for the steel industry are becoming more and more strict. In order to better meet the requirements of the market, large-diameter stainless steel pipes are heat-treated. The performance of large-diameter stainless steel pipes also increases the service life of large-diameter stainless steel pipes. The toughness of large-diameter stainless steel pipes is improved through heat treatment to increase the plasticity of large-diameter stainless steel pipes.

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2024

Principle and precautions of ultra-deep cooling treatment

The principle of ultra-cryogenic treatment is to improve the performance of metal materials by changing their crystal structure. The cryogenic treatment temperature is very low, which can make the metal atoms move freely, thus changing the crystal structure and enhancing the hardness and toughness of the material.

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2024

The function and effect of bright heat treatment

Bright heat treatment is a metal processing process, through heating and cooling and other different process treatment methods, so that the metal surface to generate a layer of dense oxide film, so as to improve the hardness of the metal surface, corrosion resistance, adhesion and wear resistance and other properties.

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2024

The difference between magnetic annealing and general annealing

Magnetic annealing and general annealing are both heat treatment technologies, but their difference lies in the nature and purpose of the annealed material.

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2024

What are the vacuum heat treatment processes?

Vacuum heating is carried out at a temperature lower than the melting point of the powder or the powder compact base component, so that solidification occurs between the powder particles and a grain agglomerate, and finally a dense sintered body is obtained.

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2024

Application of TD Surface Treatment Technology

TD treatment is called Shen metal treatment, and the practical application is widely used in melting immersion plating method (or molten salt impregnation method, salt bath deposition method), is the method of forming VC, NbC, Cr23C6-Cr7C3 carbide superhard layer on the surface of the mold. The surface of the mold treated by TD method forms 5 ~ 15um thick VC film, which can significantly improve the hardness, wear resistance, adhesion resistance and corrosion resistance of the mold surface, thus greatly improving the service life of the mold.

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2024

What is the difference between graded quenching and austempering?

Isothermal quenching and step quenching are two different heat treatment methods, which are different in temperature control and cooling rate during quenching.

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2024

What are the advantages and disadvantages of vacuum furnace heat treatment?

No oxidation and no decarburization: Vacuum heat treatment can reduce the oxidation and decarburization of the material, which helps to maintain the original structure and performance of the material.

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2024

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