What materials are generally used in plastic injection molds?

What materials are generally used in plastic injection molds?

Today, the technicians of Dongguan Yongchao Plastic Technology Co., Ltd. will explain it to you, and I hope it will be helpful to you.

First, the manufacturing material of plastic injection mold depends on the production needs, mainly considering the following four factors:

(1) Material strength: The mold needs to withstand pressure and wear during high-pressure injection molding, so the manufacturing material must have sufficient strength to ensure life.

(2) Heat resistance: the plastic becomes a liquid state after heating, and needs to be injected at high temperatures. Therefore, the mold material must be able to withstand high temperatures.

(3) Thermal conductivity: Because plastic injection molding is a fast process, the mold needs to have good thermal conductivity to ensure uniform injection molding.

(4) Corrosion resistance: chemicals are used in the plastic injection molding process, so the material must have sufficient corrosion resistance.

Second, what kinds of common injection mold materials are there, mainly including the following 4 kinds:

(1) Aluminum alloy: Aluminum alloy mold has low cost, short manufacturing cycle, and is suitable for small production.

(2) h13 steel: This steel has high hardness, good toughness and strong heat resistance, which is suitable for large-scale production.

(3) Stainless steel: stainless steel mold has high corrosion resistance and high hardness, which is suitable for plastic injection molding production.

(4) Copper alloy: Copper alloy mold has good thermal conductivity and is suitable for the process of high injection temperature.

In short, the manufacturing materials of plastic injection molds need to be selected according to the actual situation to meet production requirements and cost effectiveness.