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 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 tungsten steel VA50, 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. Binder components such as pressure plate, excellent strength glue, etc., unloading parts such as the stripper plate, pneumatic roof materials. Check all parts of the relationship and when maintenance parts for damage, repair the damaged part, pneumatic ejector check for air leaks, and to take measures to the specific situation. Such as the trachea replace damaged. Share Boro mold steel springs and other parts in the course of an elastic spring most easily damaged, usually a fracture and deformation phenomena. Under the approach taken is to replace Japan VA35 tungsten steel, the replacement process must pay attention to the size and type of spring, spring specifications and models of the three confirmed by color, diameter and length, only three are in the same circumstances can be replaced. Imported steel mold normalizing in different steel can have different purposes. Such as low carbon steel, mainly in order to increase the hardness and improve the processing performance, prevent cutting a "sticky knife" is like. For carbon steel, low alloy steel, has refined the organization, homogeneous, uniform performance and reduce the hardness and so on. High carbon steel, alloy steel mesh to eliminate carbide, ready to organize uniformity further heat treatment. For carburizing steel, can also eliminate the carburizing layer mesh carbide and improve performance. For castings, forgings also eliminate abnormal tissue Vickers organizations, grain refinement. Stage exports of steel leg, although relatively small, but also for the development of diversified steel provides a variety of profit point. At present, the domestic mills eyes stare but it is still mainly in the domestic top. For a long time, steel mills in order to maintain the viability of the tenacious Japanese tungsten steel VA30 increasingly fierce competition in the domestic market, but also moves Qi out, the author interviewed for this mill is through the Institute launched a cooperation with a university, take the mutual Long tungsten steel, interlibrary loan resources, forming a virtuous circle of very good, geopolitical advantages, resources used to make the best out of high-efficiency mode 1 + 1> 2. So this is the steel products market share in competitive big an important factor. Dianjiang tungsten steel, Yong Wei mold steel, tungsten steel RD30 suppliers from Dongguan City An Yongwei steel mold shop. "Die steel, DC53, SKD11.SUS440C, SUS420" preferred Dongguan City An Yongwei steel mold shop (2), the company is located at: 3 A, Dongguan City Changan Ha Kong, the first industrial zone, over the years, Yong Wei mold steel stick providing customers with the best quality service, contact: Simon / R. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Yong Wei mold steel expect to be your long term partner!