Yong Wei mold steel, tool steel, Dongguan M340, M340 provided by Yong Wei steel mold. We are a steel mold, Dongguan City, An Yongwei shop (www.dgyongwei.com) located at: Dongguan specializes in: mold steel, DC53, SKD11.SUS440C, SUS420 industrial abrasive teeth, ranging from aerospace to medical As in almost all areas of public health is not an alternative. After nearly a decade of development, China has experienced the development of abrasives market price adjustment M340, the basic pattern has been basically formed. At present, China has become the largest producer of abrasives, but not the power. 1, abrasives industry-wide production capacity has become the scale, but the specific production capacity of more decentralized, small-scale enterprises, the scale and poor efficiency. Scale structure of the enterprise is still quite reasonable, low industrial concentration, still accounts for a large proportion of small businesses. Low competitiveness of enterprises and products in Dongguan M340 tool steel, seriously affecting enhance the economic strength, especially not conducive to environmental protection and upgrading technology. 2, overcapacity. Alumina production is particularly prominent, overcapacity, low product homogeneity will increasingly not be accepted by the market, especially after entering in July, the situation is more severe, persistent drought in five southern provinces, especially in Guizhou M340, July, and now the power a serious shortage of M340 sheet, smelting enterprises to stop production. Abrasive grinding abrasives can play a role in the most fundamental factors, the type of abrasive is very much consistent with the principles of selected material properties to be machined workpiece. Choose the time, also need to consider when abrasive grinding abrasive materials and abrasive thermal stability of the workpiece between chemical reactions and abrasives etc. To select the desired particle size and the grinding efficiency considering the roughness of the working surface. When a large surface contact area abrasive and bows, or when grinding depth is large, you should choose the coarse granularity of abrasive. And the particle size of the coarse abrasive friction surface is small, heat generation is also small.