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With all the plastic yield enhancer and expansion regarding application fields, created from plastic molds expanding demands, and promote that continuous development in the plastic molds. Plastic mold is relocating the current high-efficiency, higher precision, high-life route, and promote that rapid development in the plastic molds content.
China's current aluminum molds for cheap, steel properties and work extremely well for heat treatment classification as practices:
Type of aluminum
Commentate-type 20, 30 Cr, 20Mn, 12CrNi3A, 20CrNiMo, DT1, DT2, 0Cr4NiMoV
Prehardened 3Cr2Mo, Y20CrNi3AlMnMo (SM2), 5NiSCa, Y55CrNiMnMoV (SM1), 4Cr5MoSiVS, 8Cr2Mn-WMoVS (8CrMn)
Fitness type 45, 40, 55, 40 Cr, 40Mn, 50Mn, S48C, 4Cr5MoSiV, 38CrMoAlA
Rust type 3Cr13, 2Cr13, Cr16Ni4Cu3Nb (PCR), 1Cr18Ni9, 3Cr17Mo, 0Cr17Ni4Cu4Nb (74PH)
Hardened sort T7A, T8A, T10A, 5CrNiMo, 9SiCr, 9CrWMn, GCr15, 3Cr2W8V, Cr12MoV, 45Cr2NiMoVSi, 6CrNiSiMnMoV (GD)
Hardening sort 18Ni140 level, 18Ni170 levels, 18Ni210 level, 10Ni3MnCuAl (PMS), 18Ni9Co, 06Ni16MoVTiAl, 25CrNi3MoAl

Popular for plastic mildew of traditional aluminum, there are by now many books for any detailed discussion in the information, this section focuses on the introduction of China and from abroad lately and has been used widely in the production of cheap mold steel.

Carburizing steel is especially used in cheap mold plastic mildew cold extrusion. In order to facilitate the frosty forming, such steel in the annealed state have to have a high plasticity in addition to low deformation opposition, therefore, requires this sort of steel, low as well as ultra-low carbon content, in order to improve the wear resistance in the mold, Such steel in the cold extrusion is normally carried out following on from the carburizing and quenching in addition to tempering, the surface hardness of around 58 ~ 62HRC.

These kinds of special steel aluminum abroad, such since Sweden, 8416, the united states such as P2 in addition to P4. Pure iron is normally used internally (such since DT1 and DT2), 30, 20 Cr, 12CrNi3A in addition to 12Cr2Ni4A steel, in addition to newly developed country-specific frosty forming steel 0Cr4NiMoV (LJ).