sales@songshunsteel.com
Steel for plastic mold making covers a wide range, from ordinary steel to dedicated steel. This was more evident in the early days of plastic molds, and it is now becoming more advanced.
The dedicated steel has its own system. The chemical composition of the mold steel is basically the same as that of the alloy tool steel, but its metallurgical quality is higher, its processing is better, and it is beneficial to heat treatment.
Plastic mold steel has strict performance requirements and is difficult to heat treat.
In order to avoid the deformation or other heat treatment problems of the mold parts during the toughening process, it is more common for the mold steel to be supplied to the market in pre-hardening.
Plastic products with petrochemical products as raw materials have different degrees of corrosivity, so corrosion-resistant steel is also used more for this kind of injection molding.
With the application of pre-hardened steel and non-quenched and tempered steel, handy cutting is also a feature of plastic mold steel.
Among the manufacturing costs of plastic molds, processing and polishing account for 70% to 80%. Therefore, when selecting mold steel, it is necessary to improve the processing performance of the molds while ensuring the performance requirements of the molds.
The selection method can be carried out as follows:
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