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    冷作模具钢终热处理的重要性

    来源:https://www.jnqhmj.com/ 日期:2022-08-06 发布人:guanli


    冷作模具钢实际上是指模具零件的热处理,除了选择合适的材料外,还应选择适合的热处理工艺,以满足模具的功能要求,提高模具的使用寿命。下面来讲讲冷作模具钢终热处理的重要性。
    Cold work die steel actually refers to the heat treatment of die parts. In addition to selecting appropriate materials, appropriate heat treatment process should also be selected to meet the functional requirements of the die and improve the service life of the die. Next, we will talk about the importance of final heat treatment of cold work die steel.
    冷作模具锻造后须进行球化退火处理,以消除锻造毛坯的铸造应力,改善显微组织,降低硬度,便于加工,为终热处理做准备。
    Spheroidizing annealing treatment shall be carried out after forging of cold working die to eliminate casting stress of forged blank, improve microstructure, reduce hardness, facilitate processing and prepare for final heat treatment.
    这是冷作模具终热处理的一个重要工序。对模具的使用功能影响很大,应特别注意。应注意以下几点:
    This is an important process of the final heat treatment of the cold working die. It has a great impact on the use function of the mold, and special attention should be paid to it. The following points should be noted:
    1)确认模具数据,检查模具表面是否有划痕、裂纹等缺陷。
    1) Confirm the mold data and check whether there are scratches, cracks and other defects on the mold surface.
    2)根据模具的形状,预估模具的文武走向,做各种堵塞,捆绑或捆绑,使加热冷却均匀。
    2) According to the shape of the mold, predict the civil and military trend of the mold, do various blocking, binding or binding to make the heating and cooling uniform.
    3)合理选择淬火加热温度奥氏体不仅要与一些合生元和碳固溶,保证模具的淬透性、硬化能力、强度和热硬度,还要有适当的过量碳化物细化晶粒,提高模具的耐磨性,保证模具有一定的公差。同时要考虑模具温度对变形的影响和加热时的预热。
    3) When the quenching heating temperature is reasonably selected, austenite should not only be in solid solution with some synbiotics and carbon to ensure the hardenability, hardening ability, strength and thermal hardness of the mold, but also have appropriate excessive carbides to refine the grain, improve the wear resistance of the mold and ensure that the mold has certain tolerance. At the same time, the influence of mold temperature on deformation and preheating during heating should be considered.
    冷作模具钢
    4)合理选择淬火、加热和保温时间对于普通模具的淬火和加热,保温时间可根据加热设备选择的经验公式计算。但在热处理实践中,要考虑模具零件的具体情况。特别是对于复杂的模具,要综合考虑各种影响因素,通过实验确定佳淬火保温时间。
    4) Reasonable selection of quenching, heating and holding time for quenching and heating of common dies, the holding time can be calculated according to the empirical formula of heating equipment selection. However, in the practice of heat treatment, the specific conditions of mold parts should be considered. Especially for complex dies, various factors should be comprehensively considered to determine the optimal quenching holding time through experiments.
    1.很终热处理
    1. Final heat treatment
    使钢件获得很终性能的热处理,如淬火加回火等;
    Heat treatment for steel parts to obtain good properties, such as quenching and tempering;
    2.预备热处理
    2. Preliminary heat treatment
    为很终热处理作组织或性能准备的热处理称为预备热处理,如退火、正火等。
    The heat treatment that prepares the structure or properties for the final heat treatment is called preliminary heat treatment, such as annealing, normalizing, etc.
    冷作模具钢终热处理的重要性就讲解到这里了,如果您对此有什么疑问,欢迎来此网站https://www.jnqhmj.com咨询。
    The importance of final heat treatment of cold work die steel is explained here. If you have any questions about this, please come to this website https://www.jnqhmj.com consulting service

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