Injection molding system mainly refers to parts or mechanisms that are in contact with plastic surface of plastic part. Generally, there are core parts, cavity parts, insert parts, slider parts and inclined top parts. These parts are core parts of mold. It is directly related to appearance, shape and structure quality of plastic part. Therefore, in mold design, this part will be designed separately, using better steel materials, even nitriding and heat treatment processes are required to make molded parts reach strength and service life required by mold production.
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