What material is used for the inclined top of plastic mold?

What material is used for the inclined top of plastic mold?

Plastic mold is a key tool for the production of various plastic products. The mold is composed of different materials and components, an important part of which is the inclined top (also known as the inclined top pin). The inclined top is a conical structure that allows the parts in the mold to release smoothly during injection molding. Specifically, when the injection molding machine is injected with melted plastic, waiting for the plastic to cool and solidify, and the rubber head must maintain a small gap with the cavity wall because of the need to support the plastic parts, in this process, how to design a good inclined top is critical.

The following are several materials commonly used for the inclined top of plastic molds:

1, Cr12Mov steel material
Cr12Mov is a high-quality high-carbon alloy steel with very high hardness and strength, and can withstand high temperatures and long-term use. Its characteristics are excellent corrosion resistance, high impact strength, good processing performance, good wear resistance and so on. Cr12Mov inclined top is usually suitable for manufacturing large molds, because these molds need to withstand great pressure.

2, 45# steel material
45# steel is a low carbon steel material, widely used in the manufacture of small and medium-sized injection molds, it has good machinability and toughness, but also relatively cheap. However, the hardness of the material is low, and it is only suitable for some smaller molds that do not need to withstand high pressure.

3, SKD11 steel material
SKD11 steel is a kind of cold working tool steel, which is widely used in the manufacture of injection molds because of its strength and wear resistance. Its main characteristics are good rigidity, strong corrosion resistance, good casting and so on. The steel is resistant to losses at high temperatures and pressures, which makes it useful when manufacturing large injection molded products.

4, H13 steel material
H13 steel is considered to be one of the high-quality die steel, its main characteristics are high thermal stability, hardness and toughness balance, excellent wear resistance and heat resistance. Because of its superior performance, H13 steel is widely used in all kinds of plastic molds, especially for manufacturing molds with long service life and high frequency of use.

5, S136 steel material
S136 steel is a high-quality stainless steel, which is characterized by high strength, good wear resistance, high precision, strong corrosion resistance and so on. S136 steel is commonly used to manufacture high-precision components in injection molded products, such as electronic devices, medical devices, and mechanical parts.

In short, the inclined top is an important part of the plastic mold, and the selection of its material is one of the key factors affecting the production quality and service life of the plastic mold. Choosing the right inclined top material can improve the durability and production efficiency of the mold, and bring more economic benefits to the manufacturer. Of course, how to choose excellent materials needs to take into account the specific production environment, production scale, product requirements and other factors for comprehensive consideration.