At present, China plastic mold more extensive selection of steel, in addition to tool steel(carbon tool steel, alloy tool steel, high-speed tool steel), there are bearing steel, spring steel, quenched and tempered steel, carbonized steel, stainless steel, steel Of many dozens, but only twenty common species, but only up to the amount of eight: Cr12, Cr12MoV, CrWMn, 3Cr2W8V, 5CrMnMo, SCrNIMo, 45, 40Cr. It is estimated that in the eight steel with steel Injection Mold Makingin China accounted for the total amount of 80%.With the development of industrial production and the less widely used non-cutting process, the performance of the proposed steel Plastic Mould Making more and higher requirements, common steel cannot fully meet the needs of the urgent need for the development and application of new die steel.


In recent years, the domestic development of nearly two hundred kinds of new die steel, such as super-hard high speed steel W10Mo4Cr4V3A1, W6Mo5Cr4VsiA1Nb etc.; tough wear-resistant steel 7Cr7Mo2V2Si, Cr8MoV2Ti etc.; high-speed steel substrate steel 65W3Mo2Cr4VNb, 5OMo3Cr4SiMnAl etc.; carbon high strength steel 4Cr5Mo2MnVSi , 4Cr3MoMnVNbB etc.; aging steel 25Cr3NiMoAl, 10Ni3MnCuAl etc.; flame hardened steel 7CrSiMnMoV, 7Cr2 SiMnMoV TiRe etc.; cutting die steel 8Cr2MnWMoVS, 5CrNiMnMoVSCa and so on. Also introduced several U.S. international common steel, such as D2 (Cr12MolV1), H13 (4Cr5MoV1Si), P20 (3Cr2Mo) and so on. New steel grades to meet the high mechanical properties of Custom Plastic Mold, special process performance and a special performance needs, solveMold design, processing, use some of the problems, substantially increased the die life, have a very significant economic And social benefits of industrial development and less widely used non-cutting process has played a significant role in promoting. But a variety of adverse factors, the new Plastic Injection Molding Application
volume is still less steel, tool steel in the amount equivalent to only the total amount of 1 / 40 ~ 1 / 50. Of course, the amount still on year by year.

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