SKD61 rod, Yong Wei steel mold (certified), Wuzhou provided by the Dongguan City An Yongwei SKD61 steel mold shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) is specialized in the "mold steel, DC53, SKD11.SUS440C, SUS420" business, the company adhering to the "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Simon / R. Also can effectively improve the low magnification and density of steel by ESR and improve mold steel isotropic. Some domestic production plant test description EAF steel production 4Cr5MoSiV1 transverse impact toughness value is only about 31% SKD61 vertical price by 4Cr5MoSiV1 after remelting steel SKD61 material, transverse impact toughness values ??can be equivalent to the longitudinal of 70%, increased by more than 1 times. For the special requirements of the steel mold, then using a powder metallurgy process to produce high-speed steel and high-alloy tool steel powder, can better improve the microstructure and properties of the steel. The advantage of this method is that no special equipment, low cost, easy. But it also has the most serious drawback, namely the risk of cracking and peeling plaster there in the heating process, therefore, there may be a partial oxidation and decarbonization; the second is an ointment exist on the surface, the impact quenching quality (reducing coolant cooling capacity and paste objects falling within the hardening agent will change the coolant cooling rate); the third is difficult to clean hardened workpiece; four is coated with a large amount of smoke when heated workpiece paste material for the furnace and the environment adversely. In the continuing weakness of the state of the market, China's steel output or "pressure not down." September nationwide average daily crude steel output remained slight increase QoQ; average daily production of steel is the second highest on record. Thus, the contradiction between the long-term accumulation of iron and steel industry has a very complex factors, not "profit loss on the pressure of production, elimination" so simple. China's mold manufacturing plant is produced from the most points with the tool and die shop (factory) SKD61, professional mold factory are mostly "large", "small" form of organization. Foreign mold companies are mostly "small and specialized," "small but excellent"; die with self-production ratio of up to 50%, more than 70 percent of foreign commodities mold. Zhuhai mold steel mold nurture talent in itself is a long process and requires the accumulation of years of experience. And limited to software and hardware facilities, some universities Zhuhai mold steel train professional students practical skills is not enough; the same time, the lack of standardization of vocational teaching standards has led to all kinds of training courses in the community are also mixed. Mold steel hardness testing will focus on three cases in which mold steel material hardness testing, heat-treated semi-finished mold detection requires the detection surface hardness and high wear resistance, hardness mold surface after the heat treatment. Supply Status tool steel is mainly through forged steel, steel blocks or bars, generally supplied in the annealed condition. Some plastic mold steel also to the pre-hardened state (quenching) supply, the user can be directly processed into the mold without subsequent heat treatment. In the context of the economic slowdown SKD61 hardness, car consumption has been no small impact, since the second half of this year, car sales growth slowing, China Automobile Industry Association data show that in September year on year growth in car sales fall further to 2.5 percent, the lowest level of the year, total sales in the first nine months fell to 7.05 percent year on year growth.