Yong Wei mold steel _DC11 price _ Pingjiang DC11 provided by Yong Wei steel mold. We are Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) located: Dongguan, Guangdong specializes in: Die factors thermal fatigue resistance of steel, DC53, SKD11.SUS440C, SUS420 steel major impact are: ① thermal conductivity of steel . The high thermal conductivity of steel, a metal mold can reduce the degree of the surface is heated, thereby reducing the tendency of the steel to thermal fatigue. Thermal conductivity of steel is generally believed that the amount of carbon and cooperation concerning DC11 sheet, high thermal conductivity at low carbon content, so not hot work die steel with high carbon steel. Commonly used in the production of carbon steel (C0.3% 5 ~ 0.6%) combined carbon content is too low. Causes the decrease in the hardness and strength of steel. Is disadvantageous. Critical point ② Steel. The critical point is usually steel (Acl) is higher. The lower steel thermal fatigue bias. Steel mold steel very tough in the work process, the mold bear the brunt of the load, in order to reduce the use of the process of breaking, chipping and other forms of damage, mold steel requires a certain degree of toughness. Number of factors mold steel chemical composition, grain size, purity, carbides and inclusions, morphology, size and distribution, as well as the microstructure and other heat after heat treatment systems and obtained all die steel-on-steel a great deal of impact toughness. Steel mold to provide a uniform distribution of the allowance for each tool ensures a constant and high productivity and safety of the cutting process. When ap / ae (axial depth of cut / radial depth of cut) unchanged DC11 rod, cutting speed and feed rate can be kept constant at a high level. Thus, the mechanical action and workload on the cutting edge of change is small, so the heat generated and less fatigue, thereby increasing tool life. If the subsequent step is a step of semi-finishing, in particular for all the finishing process, or part of the processing can be carried out no no processing. Constant material allowance is the basic standard high-speed cutting applications. Use coal stove, oil furnace, gas stove, are likely to make the workpiece when oxygen decarbonization box furnace heating the workpiece, measures must be taken to prevent heart increases. In the well-equipped, the best way is to pass into the protective gas, but in the majority of small and medium enterprises, the current can still do so. It describes several simple way, when conditions permit adoption. DC11 on domestic ore market price, Hebei iron powder prices weak stability operation, part of the large mines to cut prices, market pessimism spread. Imported ore prices rose and then fell, 62% grade Platts iron ore index in the October 23 closing price of $ 79.75 per ton, down $ 1.25 a week. After the National Day holiday, steel replenishment demand rises, iron ore port stocks declined. But the DC11, such replenishment needs unspeakable "big bang", steel procurement is still very cautious, both supply and demand is still in a state of stalemate.