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Selection Of Mold Materials

Source: Kunshan JST Industry Co., Ltd.

When choosing China plastic injection molding materials, we should make the decision according to different production batches, process methods and processing objects. In mass production, long-life mold materials, such as cemented carbide, high strength and toughness, and high wear-resistant Shijiazhuang mold steel (such as YG15, YG20), should be selected; zinc alloy and antimony tin alloy can be used for trial production of small batches or new products. Such as mold material; for easy deformation, easy to fracture failure of the general mold, you need to use high-strength, high toughness of the material (T10A); hot forging molds have to use good toughness, strength, mold resistance and thermal fatigue resistance The material (such as 5CrM-nMo); die casting mold to use high thermal fatigue resistance, high temperature strength of the alloy steel (such as 3Cr2W8V); plastic molding should be selected easy to cut, dense tissue, polishing materials with good properties.

In addition, when designing punches and dies, it is advisable to match molds of different hardness or different materials, such as: tool steel for punches (such as T10A), high-carbon and high-chrome steel for dies (such as Cr12 and Cr12MoV), Mold life can be increased by 5 to 6 times.

China Plastic Injection Molding


May, 2018
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