Plastic mold steel, which is the steel used in the plastic manufacturing process. In recent years, the plastic products industry has experienced rapid growth, leading to an increasing demand for plastic mold steel. Generally, the quality of the mold steel directly affects the quality of the plastic products. So, how can one correctly select plastic mold steel?

What types of plastic mold steel are available? How to make a reasonable choice of plastic mold steel?

During the mold production process, the most common types of plastic mold steel are时效硬化型, corrosion-resistant, carburizing, pre-hardened, quenched, and tempered, among others. Different plastic products use different types of plastic mold steel during production.

1. Time-efficient hardening plastic mold steel

This steel features excellent heat treatment processing and forging properties, making it particularly suitable for manufacturing high-precision and transparent plastic molds, such as vehicle, lighting, and telephone shell molds.

2. Corrosion-resistant plastic mold steel

Some plastic products can corrode molds during the processing, in which case, you can choose to use corrosion-resistant plastic mold steel for mold manufacturing.

3. Carburizing Plastic Molding Steel

This steel has low carbon content, excellent cold plasticity, and is resistant to extrusion, making it suitable for plastic molds used in extrusion molding.

4. Pre-hardened plastic mold steel

Pre-hardened plastic mold steel is widely used; it undergoes heat treatment prior to supply, achieving the required hardness for mold use. This allows for a shortened mold manufacturing cycle and ensures precision in mold production. The steel is particularly suitable for making plastic molds for appliances, electronics, instruments, and other outer casings.

5. Tempered Plastic Molding Steel

Also, after the mold mechanical processing is completed, a tempering treatment is conducted to enhance its overall mechanical properties.

6. Hardened Plastic Molding Steel

This die steel is suitable for manufacturing molds with high strength, hardness, and toughness, which can help reduce phenomena such as deformation, cracking, and collapse during use.

The structure of plastic molds is complex, and when selecting mold steel, one should consider various factors such as the type of plastic, shape, size, precision, and output.

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