AsiaVest steel mold (Figure) | Japan tungsten steel VA40 | Banan tungsten steel provided by steel mold, Dongguan City An Yongwei shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) is a professional "mold steel, DC53, SKD11.SUS440C, SUS420" of the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to healthy competition in the market, so that "Sweden Assab, Daido, Hitachi, Austria Bluff" brand has a good reputation. We adhere to the "service first, customers first" principle, the permanent mold steel Granville won the trust of customers congregation in special steel, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! According to the needs of the domestic steel industry development trends die and mold manufacturing market RD30 tungsten steel suppliers, seize develops high-precision, high toughness, corrosion resistance, high-quality new varieties of mold steel, making domestic hot and cold mold Steel reached the 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" tungsten steel RD20, 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 Die self-made 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 ° tungsten steel, 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. In fact, 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. Compressive strength and the compressive yield strength of the mold is often subjected to high bending strength and bending stress in use, thus requiring the mold material should have a certain compressive strength and flexural strength. In many cases, the compression test and bending test conducted conditions close to the actual operating conditions of the mold (for example, the measured compressive yield strength of the steel mold and punch work has shown more consistent deformation resistance) . Another advantage of the bending test is to be absolute value of the variable, and can be more sensitive to reflect differences in deformation resistance under different heat treatment and texture between different kinds of steel. Alloy steel and high carbon steel parts carbon ratio, high carbon steel tools, molds and other parts, in order to reduce deformation and cracking Japan VA35 tungsten steel, often using isothermal quenching methods. The finished piece is heated rapidly quenched slightly above the horse's transformation began isothermal isothermal bath furnace to complete bainite transformation occurs, get lower bainite isothermal quenching operation called quenching. Austempering get is bainite rather than martensite. But with considerable good mechanical properties. The main factor is the restricted cross-sectional size of the workpiece. From the third quarter of 2014, the number of available days of average inventory of iron ore, the overall downward trend was shock, mainly due to new production overseas iron ore market is significantly higher than the new China, the largest iron ore demand in consumer countries supply and demand pattern of international iron ore market has undergone substantial changes. Second, China's real estate industry is subject to adjustment for up to 10 months, consumer confidence in the market share of the largest iron and steel industry, demand for building materials suffered a serious setback, combined with the previous two years, the steel trade and industry has been a continuous shuffling, steel demand and trade aspects of the terminal both weaken confidence in the market formed a great impact on commodity spot prices of steel-related industries were hit this year's low, futures prices also repeatedly refresh the lowest since listing.