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What are the basic knowledge of plastic molds?

Update:17-06-2021
Summary:

Hot work die steel is mainly used to manufacture plasti […]

Hot work die steel is mainly used to manufacture plastic molds for high-temperature pressed workpieces. Such as hot forging die, hot extrusion die, die-casting die, hot upsetting die, etc.

  Cold-working die steel is mainly used to make molds for cold-formed workpieces. Such as: cold blanking die, cold stamping die, cold drawing die, stamping die, cold extrusion die, thread die, powder die.China plastic industrial mould Manufacturers
Molds are generally divided into hot processing molds, cold processing molds and plastic molds. In addition, it can also be classified according to the length of service life: first level: more than 1 million times; second level: 500,000 to 0 million times; third level: 300,000 to 500,000 times; fourth level: 100,000 to 300,000 times; level 5 : Less than 100,000 times; the first and second types of molds require that the mold steel can be heat treated to a hardness of about 50HRC, otherwise it is easy to wear, so the steel must not only have good heat treatment performance, but also have good cutting performance under high hardness. , Of course, there are other considerations.