Yong Wei mold steel, HPM1 steel, Baise HPM1 provided by Yong Wei steel mold. We are Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) located: Dongguan, Guangdong specializes in: mold steel, DC53, SKD11.SUS440C, SUS420 plastic mold steel work, under long-term effects of cyclic stress, often leading to fatigue fracture. In the form of small energy repeated impact fatigue fracture, tensile fatigue fracture contact and bending fatigue fracture fatigue fracture heat at a high temperature working die HPM1 material, required to maintain its organization and stability, thereby maintaining sufficiently high hardness, this performance is called red hardness. Carbon tool steels, low alloy tool steel is usually able to maintain this performance in the temperature range 180 ~ 250 ℃, the chromium-molybdenum steel hot die generally within a temperature range of 550 ~ 600 ℃ to maintain this performance. Red hardness of steel depends on the chemical composition and heat treatment of steel. Studies show that Japan's Hitachi HPM1 mold, high carbon and low alloy tool steel and high-carbon steel can be carried out in carburizing or carbonitriding. Low-carbon steel carburizing or carbonitriding, should choose a lower heating temperature and shorter holding time as possible, then you can ensure that there is more surface core undissolved carbides, carburizing and carbonitriding After penetration, grainy surface HPM1 carbide tool steel, carbide, there was a marked increase in the total volume can increase wear resistance of steel. China at this stage is still in the demographic dividend period, there is a lot of labor, lower labor costs relative to developed countries; market, the mold industry, the Ministry of steady advances in traditional markets and actively open up emerging markets, even in the past ignored edge of the market has also been development, which are for the mold industry to develop a broad market space; In recent years, the Chinese government has issued a series of policies to support the casting, the development of domestic metal casting industry, but also to create a good development space for the mold industry. Shoddy die steel prone to folding. Folding is formed on the surface of a variety of die steel fold, this defect often throughout the product's portrait. The reason is due to shoddy manufacturers of folding the pursuit of high efficiency, reduction is too large, resulting in the ears, it creates a rolling when folded down, the product will crack when folded bend, making the strength of the mold steel declined significantly. October is the best month of the domestic infrastructure construction, but also the only good outdoor construction during the year "days"; in infrastructure in order to complete the annual task of pressure, I think, this time next month or so, is the outdoor infrastructure Project construction season, at rush period, driven HPM1, Xianluo other construction steel demand should also release a more centralized point. The September manufacturing PMI index is relatively stable, indicating that the domestic economy is stable, but lower portion of the index also reflects the economic side there is still downward pressure in the future. At the same time, good bad macro intertwined; relax or stimulate the property market, real estate credit market confidence, but it is difficult to form a clear effect in the short term.