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    热作模具钢性能以及使用寿命问题

    来源:https://www.jnqhmj.com/ 日期:2022-08-02 发布人:guanli


    部分项目的具体规划仍需根据需要确定。例如,某些模具的选择和应用取决于具体情况。那么热作模具钢的性能和使用寿命呢?了解了这些内容后,将对热作模具钢的采购有很好的参考和价值。
    The specific planning of some projects still needs to be determined according to needs. For example, the selection and application of some molds depend on the specific situation. What about the performance and service life of hot working die steel? After knowing these contents, it will have a good reference and value for the procurement of hot work die steel.
    山东热作模具钢性能:
    Properties of Shandong hot work die steel:
    (1)硬度是模具钢的主要技术指标。为了在高应力作用下保持模具的形状和尺寸,它必须具有足够高的硬度。冷作模具钢的硬度在常温下一般保持在HRC60左右,热作模具钢根据其工作条件一般要求保持在HRC40~55的范围内。对于同一钢种,在一定的硬度值范围内,硬度与变形抗力成正比;但是,硬度值相同但成分和结构不同的钢种之间的塑性变形抗力可能存在显着差异。
    (1) Hardness is the main technical index of die steel. In order to maintain the shape and size of the mold under high stress, it must have sufficient hardness. The hardness of cold working die steel is generally maintained at about HRC60 at room temperature, and hot working die steel is generally required to be maintained within the range of hrc40 ~ 55 according to its working conditions. For the same steel, within a certain range of hardness value, the hardness is directly proportional to the deformation resistance; However, there may be significant differences in plastic deformation resistance between steel grades with the same hardness value but different composition and structure.
    (2)红硬性在高温下工作的热作模具,要求保持其组织和性能的稳定性,以保持足够高的硬度。这种性能称为红硬性。碳素工具钢和低合金工具钢通常在180-250℃温度范围内能保持这种性能,而铬钼热作模具钢一般在550-600℃温度范围内能保持这种性能。钢的红硬性主要取决于钢的化学成分和热处理工艺。
    (2) The hot working die with red hardness working at high temperature requires to maintain the stability of its structure and performance in order to maintain a sufficiently high hardness. This property is called red hardness. Carbon tool steel and low alloy tool steel can maintain this property in the temperature range of 180-250 ℃, while chromium molybdenum hot work die steel can maintain this property in the temperature range of 550-600 ℃. The red hardness of steel mainly depends on the chemical composition and heat treatment process of steel.
    山东热作模具钢
    山东热作模具钢的使用寿命
    Service life of Shandong hot working die steel
    决定模具使用寿命的重要因素往往是模具材料的耐磨性。模具在工作中要承受相当大的压应力和摩擦力,这就要求模具在强烈的摩擦力下仍能保持其尺寸精度。模具的磨损主要有机械磨损、氧化磨损和熔合磨损三种。为了提高模具钢的耐磨性,既要保持模具钢的高硬度,又要保证钢中碳化物或其他硬化相的成分、形貌和分布合理。
    The wear resistance of die materials is often an important factor that determines the service life of dies. The die has to bear considerable compressive stress and friction in its work, which requires the die to maintain its dimensional accuracy under strong friction. Die wear mainly includes mechanical wear, oxidation wear and fusion wear. In order to improve the wear resistance of die steel, it is necessary to maintain the high hardness of die steel and ensure the reasonable composition, morphology and distribution of carbides or other hardened phases in the steel.
    对于在重载和高速磨损工况下使用的模具,要求模具钢表面能形成一层薄而致密、附着力好的氧化膜,保持润滑,减少模具之间的粘连、熔接等熔合磨损。和工件。可减少模具表面氧化造成的氧化磨损。因此,模具的工作条件对钢材的磨损影响很大。
    For the dies used under heavy load and high-speed wear conditions, it is required that a thin and dense oxide film with good adhesion can be formed on the surface of the die steel to maintain lubrication and reduce the fusion wear such as adhesion and fusion between the dies. And workpiece. It can reduce the oxidation wear caused by the oxidation of the mold surface. Therefore, the working conditions of the die have a great impact on the wear of steel.
    另外,不同类型产品的优势和差异是不同的,主要是根据具体需求选择合适的型号和产品。您可以参考一些具体的常识和购买说明。在这种情况下,对于采购更合适的热作模具钢产品将是非常有帮助的。关注我们的网站https://www.jnqhmj.com进行咨询。
    In addition, the advantages and differences of different types of products are different, mainly based on the specific needs to choose the appropriate models and products. You can refer to some specific common sense and purchase instructions. In this case, it will be very helpful for purchasing more suitable hot work die steel products. Follow our website https://www.jnqhmj.com Consult.

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