Briefly use plastic mold the note

- Nov 10, 2016-

As there are a variety of methods, plastic mold factory is plastic mould use notice:
Plastic mold working conditions and cold punching die is different, generally must be under 150 ° C to 200 ° C, except under certain pressure, and temperature effects. Now according to the plastic molding conditions of use, and processing methods of different plastic mould steel basic performance requirements be summarized as follows:
1, good thermal stability: plastic injection mould parts shapes are more complex and difficult to machining after quenching, so should choose as far as possible with good thermal stability, when the mold in plastic mold factory processing after the heat treatment for small linear expansion coefficient, heat treatment deformation is small, the size of the rate of change caused by the temperature difference is small, the microstructure and the mold size stability, can reduce or no longer carry on the processing, can guarantee the mold size accuracy and surface roughness requirements.
2, good cutting machining: most of the plastic molding mold, except the EMD machining and machining and fitter and replacement.
3, enough surface hardness and wear resistance: die at work due to the filling of plastic and flow under high compressive stress and friction force, mould wear resistance depends on the chemical composition of steel and heat treatment hardness, thus improve the hardness of mould to improve its wearability.
4, good polishing performance: high quality plastic products, the cavity surface roughness value is small.

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