The main operation mode of embedded knurled copper nut is injection molding. After heating, it is embedded into the plastic part or directly molded. If mold injection is used, the melting point of PA/NYLOY/PET is above 200 ° C, and the temperature of embedded nut rapidly increases after being hot melted into the plastic part. After injection molding, the plastic body rapidly cools, crystallizes and hardens. If the temperature of embedded nut is still high, Then it is possible to fall down to the place where the copper nut contacts the plastic part and begin to loosen or crack. Therefore, copper nuts are used instead of carbon steel nuts in the injection molding of embedded nuts.

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