M2 material, Yong Wei steel mold (certified), Aba M2 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. Regardless of plastic mold, which allows the surface roughness of the cavity is extremely small, are required to be able to do almost a mirror shine. To achieve specular gloss, the main point is that the steel must have not less than 38HRC hardness, preferably 40 ~ 46HRC, 55HRC achieve the best. To achieve specular gloss, the first steel inclusions as little as possible, but can not have a bubble exists, and fibrous tissue uniform. In the mass production of the mold, in order to reduce wear, in addition to the cavity surface hardness, surface roughness is also an important condition. Hypoeutectoid steel for adoption. In order to refine the grain, homogeneous, eliminate stress, reduce the hardness of full annealing process. Castings, forgings, weldments and rolling commonly used. The steel is heated to 30-50 degrees Celsius above Ac3, usually carbon steel to 1.5-1.8min / mm; steel to 1.8-2.0min / mm insulation. Then the furnace was cooled to 500-600 degrees Celsius baked. After cooled baked. Near the end, businesses accelerate the phenomenon of increased shipments, the recent local cold-rolled prices dropping again, cold resources are more abundant. Slowdown in downstream demand growth, lower purchasing volume does not appear, the current high price of supply (M2), the larger the market pressure, the price is difficult to rebound. And cold rolled prices are still some gaps. High corrosion resistant plastic mold steel super mirror M2, imports of similar quality and mold steel similar, more polished performance, the probability of pitting and orange peel is very low. Refers to the metal cutting tool after being the degree of difficulty and become qualified workpiece. After the cutting of the common quality of the machined surface roughness of the workpiece, the cutting speed and the degree of wear of the tool allows to measure. It is the chemical composition, mechanical properties, thermal properties and the extent of work hardening and other metal materials, and many other factors. Is usually used for the hardness and toughness of the machinability is good or bad is determined substantially. Mold steel DC53 vacuum heat treatment after a good surface state, small deformation. Compared with the hardening atmosphere under vacuum oil quenching after mold steel mold surface hardening is relatively uniform, but slightly higher, mainly due to the vacuum heating, mold steel surface was an active state, not removal, does not produce an oxide film impede cooling. Heating under vacuum, the surface of the steel degassing effect, and thus has high mechanical properties, the higher the degree of vacuum in the furnace, the higher the bending strength. According to past experience, after the rainy season in India HRC market remains weak uncommon. There are three main reasons for M2 material, namely the Indian government has not yet begun to implement infrastructure projects, market transactions deserted; the second is squeezed by Chinese resources, market conditions continued to deteriorate, although some Indian traders have decided to cut the offer 500-750 rupees / tons of imported M2 material, but did not stimulate market demand picks up; three capital market liquidity crunch, the steel market funds are tight, buyers cautious purchases.