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Pressureless sintering process of silicon carbide ceramics
Silicon carbide ceramics have the characteristics of high strength, high hardness, high rigidity, high thermal conductivity, low expansion, and stable chemical properties. It is not only an excellent high-temperature structural material, but also has been increasingly widely used in semiconductor...
Effect of Vacuum Heat Treatment Process on Properties of Spring Steel
The effects of vacuum and air heat treatment processes on the fatigue properties and microstructure of 50CrVA spring steel were studied using optical metallography, scanning electron microscopy and fatigue tests. The results show that the fatigue properties of the materials under the two heat tr...
Which materials are suitable for vacuum heat treatment?
Vacuum heat treatment is suitable for materials that are prone to oxidation or require special protection during heat treatment. Through vacuum heat treatment, the mechanical properties, corrosion resistance and high temperature resistance of the material can be improved, while the chemical compo...
Vacuum heat treatment measures to prevent tool and die distortion and cracking
For distortion, the following methods can be used to reduce the influence of distortion. 1) Select appropriate tool steel according to the shape, structure and working conditions of the mold. 2) Distortion and cracking tendency should be taken into account when designing the mold. 3) Select appro...
Vacuum heat treatment in aviation field
The aviation industry is a high-tech industry that uses a large number of cutting-edge science and technology, selects various new materials with high specific strength, develops near-zero-residue forming technology, precision and ultra-precision processing technology, etc. In order to ensure th...
Heat treatment distortion and cracking of tools and dies
Principle of distortion and cracking in vacuum heat treatment of tools and molds During vacuum heat treatment, tool steel may be distorted and cracked, which will seriously affect the performance of steel. There are two main reasons: one is that during the heating and cooling process of steel, th...
Common vacuum heat treatment processes for tool steel
Common vacuum heat treatment process for tool steel The vacuum heat treatment process has a huge impact on the structure and performance of tool steel. Different vacuum heat treatment processes have different effects on the same steel, and the same vacuum heat treatment process has different effe...
Types and uses of cold working die steel
Introduction of tool steel Tool steel can be divided into cutting tool steel, die steel, gauge steel, impact-resistant tool steel and roll steel according to its use. For commonly used die steel, it can be divided into three categories according to its use and working conditions, namely cold work...
Introduction to Vacuum Carburizing Technology
The development of carburizing technology mainly focuses on developing new energy-saving and environmentally friendly processes; improving carburizing quality, making the control of the carburizing process more precise; shortening the carburizing time, etc. Vacuum carburizing Vacuum carburizing r...
Construction of vacuum annealing furnace
Working principle of vacuum annealing furnace The vacuum annealing furnace reduces the contact of materials with gases such as oxygen and nitrogen during the annealing process by creating a high vacuum environment, effectively avoiding oxidation and contamination. Its working principle is based o...