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Name:Rebecca Dong
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The effect of heat treatment quality and surface strengthening on die life. |
In the mold structure, material and use under the condition of invariable condition, ensure the quality of heat treatment, using the best heat treatment process is to give full play to the mould processing material potential, the key to improve the service life of the mold. If the heat treatment process is not reasonable or improper, it will seriously damage the performance of the mold and lead to its early failure.
The preparation heat treatment of the blank of the mold work parts, the material and the requirements of different kinds of annealing, normalizing, tempering and other processes. The correct preheat treatment specification plays an important role in improving the organization, eliminating the defects of the forging blanks, improving the processability, and improving the bearing capacity and die life.
The quenching and tempering of die processing materials is the key to ensure the performance of the mould. The process of quenching and tempering has a direct effect on the bearing capacity and life of the mould, and the heat treatment process should be strictly controlled or the advanced heat treatment method should be adopted.
The purpose of surface strengthening of mold working parts is to obtain the effect of external hard inner toughness, so as to obtain good cooperation of hardness, abrasion resistance, toughness and fatigue resistance. There are many ways to strengthen the surface of mould surface, and the new technology of surface treatment is developing rapidly. In addition to carbon and nitrogen altogether permeability, ion nitriding, boronizing, carburizing, sulfurizing, aluminized, vanadium, edh, laser heat treatment, chemical vapor deposition (CVD), physical vapor deposition (PVD) has gradually development and application, etc. After the treatment of CVD and PVD, the surface of the mold is covered with a super hard substance such as TiC, TiN, etc., with high hardness, abrasion resistance, corrosion resistance, and good adhesion, which can increase the die life several times to dozens of times.
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Down:The effect of mould processing and manufacturing quality on die life. Up:Injection mold processing surface quality and inspection requirements. |
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