Do you understand what are the characteristics of plastic mold steel?

    Plastic products in industrial production and daily life has been widely used, hot work mold steel processing factory plastic mold shell has to precision, import substitution and multi-concave mold orientation development trend, the performance of plastic mold steel regulations are increasingly high, some industrial production is more developed * existing separate plastic mold steel species series products. Plastic mold steel performance should be based on the type of plastic, the main use of the product, forming and manufacturing large batch size. The general provisions of heat treatment methods are simple, heat treatment process deformation is small or no deformation, pre-hardening case of good drilling performance, mirror polishing performance and pattern design etching process performance of high quality, low surface roughness, long service life.

    For large and medium-sized, complicated and high-precision extrusion and injection molding, the pre-hardening is generally done to the middle of 28-35 HRC, then drilling and cutting are carried out to the required specifications and precision, and then immediately delivered to use, thus preventing the disadvantages of deformation, air oxidation and carburization in the heat treatment process. The addition of the easy-to-cut elements S, Co, and Heathland is used to improve the drilling and machining properties of soft steel.

    ②Mirror glass processing performance of plastic products such as laser discs and plastic lenses have high surface surface roughness regulations, the key by the surface roughness of the mold shell concave mold to *, generally the surface roughness of the mold shell concave mold is one level higher than that of plastic products. The mirror glass processing performance of mold steel is related to the purity of steel, mechanism, strength and technicality of mirror glass processing. High strength, microscope mechanism is fine and proportional, non-metallic material is less involved, are beneficial to enhance the mirror polishability. Mirror polishability provisions of high plastic mold steel often choose vacuum pump smelting or vacuum pump degassing.

    ③ pattern design etching processing performance some plastic products surface regulations show clear and rich pattern design pattern, but also leather products industrial production of large and medium-sized pattern embossed version, are required to mold steel has excellent pattern design lithography technical performance, pattern design lithography technical performance of the material provisions and mirror polishing properties similar to the steel purity to order high, the agency to high density, high strength.

    ④ corrosion resistance performance effective chlorine and fluorine epoxy resin and its in ABS resin plus anti-flammable agent, in the molding process will be released with corrosive vapor. For this kind of plastic mold shell to use corrosion-resistant plastic mold steel or surface stainless steel or choose nickel phosphorus amorphous surface coating.