In the general technical standards for heat treatment, we only specify how many degrees and hardness we require, but do not require too much performance, yield and tensile strength. Therefore, we generally classify this material as heat treatment, and say that it can be treated to 48 to 52 degrees for me.

一般就是这个要求，而没有提过多的要求，那其他性能指标也只是隐含在这种模具的前提中，那这些指标在实际生产过程中的实现，需要对工艺进行控制的。

This is generally the requirement without too many requirements. Other performance indicators are only implied in the premise of this mold. The realization of these indicators in the actual production process needs to control the process.

在热处理过程中，由于加热温度、保温时间不充分，模具钢中的合金元素没有充分的，所以奥氏体的一个转换，淬火回火组织就会出现回火不足的现象，抗高温强度就不够，硬性就差，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 sufficient. Therefore, due to a transformation of austenite, the quenching and tempering structure will have the phenomenon of insufficient tempering, insufficient high-temperature strength, poor hardness, mold cracking and early cracking in use. Deformation and other defects.

那目前外加工协做的一些热处理厂，以硬度为标准来热处理，热度不均的现象十分普遍，必须通过控制生产过程，使工件保温充分，热属于工艺以满足公益性为标准，不能仅仅认为达到硬度要求就是合格的模具，有时候我们把模具出现问题拿回去打硬度，哎你这个硬度够啊，没问题啊，所以说我们不单单

At present, some heat treatment plants made by outsourcing processing Co., Ltd. take hardness as the standard for heat treatment. The phenomenon of uneven heat degree is very common. The production process must be controlled to make the workpiece fully insulated. Heat belongs to the process and meets the public welfare as the standard. We can't just think that meeting the hardness requirements is a qualified mold. Sometimes we take back the mold for hardness when there are problems, Hey, your hardness is enough, no problem, so we don't just

就是去看硬度，那这个模具我们在使用当中还要注意哪些，注意是不是？这种模具钢在模具服役期间也要得到一些保养维护。，压铸模具在使用一段时间后，要补充软氮发，压铸模具在使用一段后要进行低温回火温度器去应力处理。

Just look at the hardness. What should we pay attention to when using this mold? Should we pay attention to it? This kind of die steel also needs some maintenance during the service of the die. First, after the die-casting die is used for a period of time, the soft nitrogen hair shall be supplemented. After the die-casting die is used for a period of time, the low-temperature tempering thermostat shall be used for stress relief treatment.