The new high-performance cold work die steel SLD-MAGIC performance increase die life and reduce the total cost of production molds and shorten delivery of respect shown considerable advantage. Mainly reflected in the following aspects: - abrasion resistance: The maximum hardness HRC62 its wear resistance increases by about 35%, a substantial increase die life. - Surface treatment of: Surface treatment adhesion film (CVD and other methods) increases by about 30%, high-strength steel to prevent bending, stretching and other scratches generated during forming. - Heat Treatment characteristics: heat-inch variant was reduced by approximately 40%, the deviation shape will be improved. For the size of the heat treatment and surface modification treatment is less, reduce the repair time. - Cutting: the cutting resistance increases by about 35%, based on improving processing efficiency, shorten the processing time in the mold manufacturing. More wear resistance, heat characteristics, surface treatment resistance, machinability characteristic values ??is carried out with the company representative data to compare the material SLD8 possible and actual product resulting property values ??differ slightly. Aging is an important heat treatment operations. The workpiece is heated to below the solubility line, relatively long periods, so that part of the solid solution decomposition, chemotaxis determinate. Sometimes the aging process so that the hardness is improved, so that the hardness of the material can sometimes be reduced. Using, respectively, depending on the material composition, heating temperature, holding time and other factors. Aging can be cast as Japanese KHA77 steel mold at a relatively low temperature, aging aluminum alloy around 200 degrees Celsius. China Steel Association data show September 29 direct imports of iron ore 62% grade ore CIF dry powder for $ 78.01 / ton. September average price of $ 82.49 / ton KHA77 sheet, but the beginning of imported iron ore prices have been at $ 130 / ton, 2011 more was as high as $ 170 / ton. The reason why iron ore prices fell sharply, mainly due to China's domestic demand is weak, while iron ore production is increased, the supply of new large scale. China's mold complete the product aids to change the product only after two years KHA77 price, the mold industry is still a young industry, it is a sunrise industry. But precisely because of this KHA77, mostly private and corporate restructuring of the mold body for the industry, after two decades of market hard, there is no shortage partially successful business, but several more are in the initial stage entrepreneurship, that is, in the accumulation of funds and experience of the stage, it is difficult to take into account the deeper consideration and action. Dongguan mold steel, although many companies have further business development planning and ambitious, but this plan and space of the current status quo and mold enterprises do not match their own development, which is more in theory, is difficult to really implement The die if you do not take the road of specialization and standardization, a great deal of hidden sustainable development will be the national economy. In accordance with the requirements of the standard, factory state of mold steel should be used Edison precision hardness testing HBS (steel ball indenter) or (hardness alloy indenter) hardness, and as long as the material has a sufficient size, you should try using force and ball Test conditions. However, mold steel material size larger than usual, not directly in the Brinell hardness test, commonly used approach is the interception of a sample in the steel, after appropriate processing by the Brinell hardness test. Construction steel market price stability, price stability plate, hot rolled coil market price stability, cold rolled coils, galvanized prepainted market price stability. Today, the Shanghai market Φ8mm High Line mainstream price 2830 yuan / ton, unchanged from the previous day; Φ20mmHRB400 rebar mainstream price 2790 yuan / ton, unchanged from the previous day; 20mm plate price is 2880 yuan / ton, unchanged from the previous day; KHA77 material _ Zhuhai KHA77_ AsiaVest steel mold provided by the 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!