SUS440C stainless steel mold Yong Wei, Bose SUS440C provided by the Dongguan City An Yongwei 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. According to the needs of the domestic iron and steel enterprises mold and die manufacturing development trend of the market, seize develops high-precision, high toughness, corrosion resistance, high-quality new varieties of mold steel, making domestic hot and cold work die steel reached world advanced level . Shantou mold steel is the basis for industrial production technology and equipment, with mold parts with high accuracy, high complexity, high consistency, high productivity and low consumption advantages, with the rapid development of industry, China's mold manufacturing industry a huge space . It is predicted that in 2010 ~ 2015, China's mold industry with an average annual growth rate will be around 10%, in 2015 - 2020 at 8% or so. According to the "mold industry," second five "development plan", to 2015, China's total sales will reach 174 billion yuan mold, of which exports accounted for about 15 percent die, that is about $ 4 billion; domestic market, domestic self-made molds rate of more than 85%, the proportion of high-grade die more than 40%; the elimination of cold work hardening, recrystallization, refining and homogenizing tissue. Recrystallization annealing, in order to continue processing and may be used at a relatively high temperature heating: Ac1 above 50-150 ° C, there are many kinds of steel phase transformation may occur. After changing furnace cooling. If, after recrystallization for direct use, then the need to control the grain size should be at a relatively low temperature, such as the general steel is heated at 650-700 ° C. Holding time for a relatively large cross-sectional size of the pieces by 3-4min / mm, for relatively small pieces generally holding time more than 2-3 hours. Cooling annealing method. Indeed Hitachi SUS440C, the temperature and the degree of recrystallization is largely dependent on the amount of deformation. If the conditions can be considered full recrystallization heating temperature according to the recrystallization of the metal. At present, China's mold industry is entering an important period of development. Manufacturing development of the automotive industry in particular, to promote domestic mold growing market, foreign customers to purchase the mold of an increasing number SUS440C, the international trend of China's mold manufacturing gradually shift is very obvious. China Die & Mould Industry Association predicted that this year the market continues to improve at home and abroad mold, mold industry in China will maintain an annual growth rate of about 20%. Precision plastic mold has been able to produce plastic molds for cameras and mobile phones, multi-cavity mold and a small modulus gear accuracy of 5 microns 7800 cavity plastic mold. Cold mold material alternative technologies require cold mold material has the strength, toughness, wear resistance, fatigue resistance performance and bite. S136 cold mold using the high carbon carbon steel, low alloy steel or cast iron after Laser Transformation Hardening replaced by the traditional process of high-grade materials, the presence of a wide range of applications of space technology. S136 Although widely used high-alloy steel cold mold has a unique wear-resistant alloy carbides effect SUS440C rod, but Laser Transformation Hardening its dispersion strengthening, distortion enhancement, processing and heat treatment process without oxidation and decarbonization without having etc. Strong working layer, S136 can compensate for the effect of high wear-resistant alloy steel has a carbide. Steel prices in mid-September to late 'cliff-style "down. From the third quarter of the overall steel trend, July ~ August, showing an overall decline in steel prices, the average price declines five major varieties of the nation's major markets for 2 yuan / ton to 39 yuan / ton. In early September prices rose slightly after the round, the overall steel prices (excluding prices of cold rolled coils outside) along with presenting "cliff-style" down, steel refresh the past 10 years the price low, the national average price of long steel products 50 yuan / ton to 70 yuan / ton decline, hot rolled coil and plate average price 50 yuan / ton to 60 yuan / ton decline.