Influence of Quenching Treatment on Thickness Dimension of Wear-resistant Steel Plate

    
    Introduction
    
    Wear-resistant steel plates are mainly used in various industries that require high wear resistance. Quenching treatment is one of the essential surface treatment technologies for wear-resistant steel plates. During the quenching process, the surface of the steel plate is heated to a certain temperature and cooled suddenly to form a hardened martensite structure. This process can change the thickness of the steel plate, so it is a process that must be carefully controlled.
    
    Quenching Working Principle
    
    Quenching is a common heat treatment process and is the most used thermal process. It usually referred to a process of rapidly cooling a material in water, oil or other quenchant medium immediately after heating. During the quenching process, atoms migrate wildly at the hot surface of the steel plate, and the molecules rapidly arrange in the martensite structure. If the cooling speed is too fast, the internal stress of the steel will increase, and the thermal shock will also increase. This can cause the thickness of the steel plate to be distorted and cause dimensional accuracy issues. The quenching speed must be strictly controlled to ensure the accuracy of the dimensional parameters of the steel plate.
    
    How to Control the Quenching Process
    
    The quenching process of the steel plate must be well controlled to avoid dimensional change of the steel plate. Here are several ways to control the quenching process:
    
    1. Control the quenching medium and its temperature: When the steel plate is heated to the quenching temperature, select an acceptable quenching medium according to the material and thickness of the steel plate, and control its temperature in the whole quenching process.
    
    2. Use an appropriate quenching speed: The quenching speed should be adapted to the size and shape of the steel to avoid thermal shock, so as to avoid over distortion and reduce thickness change.
    
    3. Pay attention to temperature uniformity: During the quenching process, the heating temperature of the workpiece should be monitored continuously, and the uniform temperature of the workpiece should be maintained.
    
    Conclusions
    
    Quenching treatment is an important process of wear-resistant steel plates. During the process, the dimensional accuracy of the steel plate must be strictly controlled and monitored to ensure the quality of the steel plates. The quenching speed, quenching medium and temperature uniformity of the steel plate should also be strictly controlled, so as to avoid over distortion and reduce the thickness change.

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