Recent studies of pre-hardened plastic mold steel, most are based on carbon steel, made that adding Ming, manganese, nickel, key, hunger and other alloying elements. In order to solve the high hardness cutting difficulty of the problem, by adding sulfur to the steel, cadmium, lead, selenium and other elements to improve cutting performance, thereby producing cutting pre-hardened steel, they can die in a relatively the successful completion of the car at high hardness, drilling, milling, World, grinding and other processes. Some pre-hardened steel can be nitrided after molding, without reducing the hardness of the substrate under the premise of the mold surface hardness and wear resistance increased significantly. Because 3Cr2W8V die steel has good heat resistance, and thus a lot of press for forging dies, hot extrusion die, cutting knives and dies. (For more information, please contact 3Cr2W8V die steel 0755-28111662 Cadence good tool steel) but the high temperature steel mold 3Cr2W8V poor impact toughness and thermal fatigue properties, thermal shock due to thermal fatigue failure under conditions affect die life. The following describes the new technology to improve the heat ①3Cr2W8V die steel high strength steel mold mold quenching 3Cr2W8V high toughness steel 40Cr return process 3Cr2W8V mold forging die pin on 160t friction press forging mouth original process: 105. A hardening S690PM 11000C prices, 600-620 ℃ tempering hardness 47-49HRC, die life 500 ^ 2000; adoption of the new technology 11500C temperature quenching, tempering 660 a 680 ℃, 39 a hardness 41HRC, life 7000 ^ -1000. Pieces. ②3Cr2W8V tool steel hardened layer haggard fire control technology 3Cr2W8V pressing mold mold steel needle nose pliers, for use on 1000-3000kN friction press. Conventional quenching, hardness 48HRC S690PM 46 a material, tool life is only 4000, the failure mode of the cavity deformation deformation or collapse if the high temperature short time heating import S690PM, the mold surface and center get different quenching temperature in followed by quenching process, obtain different organizations inside and outside, through this process, 3,200 die life after treatment. Pieces. ③3Cr2W8V die steel Austempering craft 3Cr2W8V mold steel bicycle crank the heat molding, used on 3000kN friction press. 10800C by oil quenching, 580 ^ 610 ℃ tempering secondary treatment process, hardness 45 --- 48HRC, the average life of 4500; use 1100 ℃ heating, 340 ^ 3500C nitrate furnace Austempering obtained under martensite + bainite structure, so that the mold to obtain a high strength, while significantly improving the ductility and fracture toughness, the average life expectancy of the die 900. Parts, up to 38,000. S690PM manufacturers | Shaoguan S690PM | Yong Wei steel mold provided by Dongguan City An Yongwei steel mold shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) strong, credible, in Dongguan, Guangdong special steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead AsiaVest mold steel and you hand into the brilliant, for a better future!