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    热作模具钢不耐用的原因有哪些

    来源:https://www.jnqhmj.com/ 日期:2022-08-04 发布人:guanli


    热作模具包括热锻模、压铸模和热挤压模,由于工作期间承受高温金属而被加热,所以需要在高温下,仍然保持较高的强度和耐磨性。那么山东热作模具钢不耐用的原因有哪些呢?
    Hot working dies include hot forging dies, die casting dies and hot extrusion dies. Because they are heated by high-temperature metals during work, they need to maintain high strength and wear resistance at high temperatures. So what are the reasons why Shandong hot work die steel is not durable?
    在通常的热处理技术标准中,往往只是写明硬度要求,而没有明确提出其他性能指标,其他性能指标只是隐含在热作模具的前提中,这些指标在实际生产过程中的实现,需要对工艺过程进行控制。
    In the general technical standards of heat treatment, the hardness requirements are often only stated, and other performance indicators are not clearly put forward. Other performance indicators are only hidden in the premise of hot working dies. The realization of these indicators in the actual production process requires the control of the process.
    在热处理过程中由于加热温度和保温时间不充分,模具钢中的合金元素没有充分奥氏体,淬火回火组织就会出现回火不足现象,抗高温强度就不够,红硬性差,使用中模具龟裂、早期开裂,变形等缺陷。
    In the process of heat treatment, due to insufficient heating temperature and holding time, the alloy elements in the die steel are not fully austenitic, and the quenching and tempering structure will have insufficient tempering, insufficient high-temperature strength, poor red hardness, mold cracking, early cracking, deformation and other defects in use.
    山东热作模具钢
    目前外加工协作的热处理以硬度为标准来热处理热作模具的现象十分普遍。须通过控制生产过程,使工件保温充分,热处理工艺以满足红硬性为标准,不能仅仅认为达到硬度要求就是合格模具。
    At present, it is very common that the heat treatment of external processing cooperation takes hardness as the standard to heat treat hot working molds. The production process must be controlled to make the workpiece fully insulated. The heat treatment process should meet the red hardness as the standard. It can not be considered as a qualified mold only to meet the hardness requirements.
    此外热作模具钢模具在服役期间做维护处理的工艺用,比如:压铸模具在使用一段时间以后,在补充软氮化;压铸模在使用一段后要进行低于回火温度的去应力处理;锻模在使用一段时间进行去应力处理。
    In addition, the hot work die steel die is used for the process of maintenance treatment during service, such as: after the die-casting die is used for a period of time, soft nitriding is supplemented; After using the die-casting die for a period of time, the stress should be removed below the tempering temperature; The forging die is used for stress relief treatment for a period of time.
    热作模具钢不耐用的原因有哪些?就是以上所讲解的内容了,如果您对此有什么疑问的话,就及时来我们网站https://www.jnqhmj.com咨询了解吧。
    What are the reasons why hot work die steel is not durable? That's what we have explained above. If you have any questions about this, please come to our website in time https://www.jnqhmj.com Consult and understand.

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