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used for stamping die materials:

    Production of stamping die materials are steel, hard alloy steel, hard alloy, low melting point alloy, zinc alloy, aluminum bronze, polymer materials and so on. At present, most of the materials manufacturing stamping die steel-based mold working parts, commonly used materials: carbon tool steel, alloy tool steel, high carbon high chromium or chromium tool steel, medium carbon alloy steel, high-speed steel, carbide, as well as the matrix steel steel bonded hard alloy and so on.

    1 carbon tool steel

    In the mold used in carbon tool steel for T8A, T10A, has the advantages of good processing performance, cheap price. But the hardenability and red hardness, heat treatment deformation, bearing capacity is low.

    2 low alloy tool steel

    Low alloy tool steel in carbon tool steel on the basis of adding an appropriate amount of alloy elements. Compared with carbon tool steel, reduce the quenching deformation and cracking tendency, increase the hardenability of steel, wear resistance is good. Used in the manufacture of molds of the low alloy steel with CrWMn, 9Mn2V, 7CrSiMnMoV (code CH-1 ), 6CrNiSiMnMoV (code GD ) etc..

    3 high carbon high chromium tool steel

    Commonly used high carbon and high chromium steel with Cr12 and Cr12MoV, Cr12Mo1V1 (code D2 ), they have better hardenability, hardening and wear resistance, heat treatment deformation is small, high wear-resistant micro deformation of die steel, bearing capacity after high speed steel. But the carbide segregation serious, must be repeated upsetting and stretching ( axial, radial forging upsetting pull ) change, in order to reduce the carbide inhomogeneity, improve the use performance.

    4 high carbon chromium tool steel

    Used to mold the high carbon chromium steel with Cr4W2MoV, Cr6WV, Cr5MoV, their chromium content is low, eutectic carbide, carbide distribution is uniform, the heat treatment deformation, good hardenability and dimensional stability. With relatively serious carbide segregation of high carbon high chrome steel, for improved performance.

    5 high speed steel

    High speed steel with steel mold in the highest hardness, wear resistance and compressive strength, high bearing capacity. The mold used in a W18Cr4V (code 8-4-1 ) and tungsten content less W6Mo5 Cr4V2 (code 6-5-4-2, American brands as M2 ) as well as to improve the toughness of development by reducing carbon reducing vanadium high speed steel 6W6Mo5 Cr4V (code 6W6 or low carbon M2 ). High speed steel also need to change the forging, to improve the distribution of carbides.

    6 matrix steel

    In high speed steel basic component and adding a small amount of other elements, appropriate changes in carbon content, in order to improve the performance of steel. This steel is referred to as the matrix steel. They not only have the characteristics of high speed steel, with wear resistance and hardness, and fatigue strength and toughness are better than high speed steel, high strength and toughness cold working die steel, the material cost is low than high speed steel. The mold used in matrix steel 6Cr4W3Mo2VNb (code 65Nb ), 7Cr7Mo2V2Si (code LD ), 5Cr4Mo3SiMnVAL (code 012AL ) etc..

    7 hard alloy and steel bonded carbide

    Carbide hardness and wear resistance higher than any other types of die steel, but the bending strength and toughness. Used as a die hard alloy tungsten cobalt, the small impact and abrasion resistance high requirements of the mold, can choose the cobalt content in low alloy. The impact of large molds, can be used with high content Cobalt carbide.

    Steel bonded carbide is in iron by adding a small amount of alloying elements ( such as chromium powder, molybdenum, tungsten, vanadium ) as binder, titanium carbide or tungsten carbide as the hard phase, with the method of powder metallurgy sintering. Steel bonded carbide substrate is overcome hard alloy steel, toughness is low, the defect of difficult processing, cutting, welding, forging and heat treatment. Steel bonded carbide containing a large amount of carbide, although the hardness and wear resistance than the hard alloy, but still higher than that of other types of steel, quenched, tempered hardness is 68 ~ 73HRC

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