What performance is required when using injection mold steel materials?

In the process of injection mold processing, the selection of raw materials will play an important role in the overall life of the injection mold and the quality of the plastic products produced. What performance requirements should be achieved when selecting the steel materials for injection molds?

  1. Good surface hardness and wear resistance

The hardness of the injection mold is usually below 50-60HRC. The surface hardness of the heat-treated mold is high. The mold is subjected to large compressive stress and friction during the work due to the filling and flow of the injection. The accuracy and size of the mold are required to maintain the shape. The stability of precision increases the service life of the mold. The wear resistance of the mold depends on the chemical composition of the steel and the heat treatment hardness. Therefore, strengthening the hardness of the mold can enhance its wear resistance.

  1. Good machinability

In most injection molds, in addition to EMD processing, cutting and fitter repair are required. In order to increase the service life of the cutting tool and enhance the cutting performance, the injection mold reduces the surface roughness, and the hardness of the steel for the injection mold is appropriate.

  1. Good thermal stability

The shape of the parts of the injection mold is often complicated, and it is difficult to process after quenching. Therefore, it should be selected to have good thermal stability. When the mold is formed by heat treatment, the linear expansion coefficient is small, the heat treatment deformation is small, and the dimensional difference caused by the temperature difference The rate is small, the metallographic structure and the mold size are stable, and the processing can be reduced or not.

  1. Good polishing performance

The surface roughness value of the injection molding cavity is required to be less than Ra 0.1 to 0.25, and the optical surface is required to be Ra<0.01 nm. The cavity should be polished to reduce the surface roughness value. Less, the tissue is fine and uniform, and there should be no pitting or orange peel defects during polishing.

As people demand higher and higher plastic products, they have put forward many requirements on the appearance, performance and cost of the products. Therefore, it is also necessary to continuously adapt the injection mold to the development of new technologies and make corresponding improvements on the basis of the original.

About JasonMould Industrial Company Limited

Jasonmould is a China mold maker of plastic molds- injection mold, die casting moulds, plastic blow molding, rotational molding, medical plastic injection molding, two shot plastic injection molding, insert molding, overmolding, metal injection molding, micro injection molding, powder injection molding, ceramic injection molding, liquid injection molding, husky injection molding, household mold, casting mold, die mold tool, custom molds, china moulds, rapid prototyping tooling, plastic prototyping tooling, punch press tooling, die and tooling for mobile/ cell phone parts, automotive parts, vacuum cleaners, rechargeable tools, telephones, copiers, computers, multimedia speakers, and many other electronic products and household appliances. And also a plastic product manufacturer, mold manufacturer China– plastic parts, plastic water tank, plastic balls, plastic containers, plastic buckle, plastic anchor, plastic hanger, plastic spoon, plastic pipe fitting, plastic tumble, plastic tableware, plastic cups, plastic bottles, plastic tray, plastic cosmetic container, plastic case, plastic food container, plastic chairs, plastic caps, plastic cap closure, plastic tubes, plastic water pipes, plastic knobs, plastic tubing, plastic utility boxes, plastic racks and so on.

Person: James Yuan
Company: JasonMould Industrial Company Limited
Add:  LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China
Tel: 86-752-6682869
Email: [email protected]

Site: https://www.jasonmolding.com/custom-injection-molding/


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