Yong Wei mold steel | import DF-2 mold | Qinzhou DF-2 is 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 chemical treatment include carburizing, nitriding, boronizing, multicomponent permeation, etc. . Processing methods can be divided according to the gas law, solid law, bath method. Selection of different penetration enhancers and process parameters on the formation of gas carburizing, solid carburizing and salt bath carburizing. Gas method the workpiece is heated in an oven, into the reaction gas at a high temperature activating gas atoms into the workpiece surface. Gas method is relatively simple, but the processing time is generally longer. Solid method is powdered solid penetration and the workpiece is buried in the box, placed in an oven heated, the advantage is simple, the drawback is the quality of the diffusion layer is not stable enough, when a large box of air pollution. Salt bath method is heated to melt the solid state penetration, the workpiece is placed inside the heating bath, the diffusion layer is generally better quality DF-2 tool steel, suitable for Boronizing. Permeation and salt bath salt bath nitriding reaction of cyanide salts or required in the use of cyanide occurs, which all belong to virulent DF-2, should be carefully selected. Meanwhile alloy content increases, but also strengthen the austenite, it is difficult to stress relaxation by plastic deformation, thereby increasing heat stress, increased quench cracking tendencies. However, increased content of alloying elements to improve the steel hardenability, quenching medium available gentler and quenching DF-2 steel, can reduce the quench cracking tendencies. In addition, some alloying elements such as vanadium, niobium, titanium, which are austenite grain refinement effect, reducing the tendency to overheat the steel, thereby reducing the tendency to quench cracking. When the mold to complete production tasks DF-2 wholesalers, should take different approaches depending on the injection carefully remove residual injection, available copper rod, copper wire and professional mold cleaners remove residual injection mold and other deposits, and then air-dried. Dongguan mold steel disable wire, steel bars and other hard objects to clean, so as not to scratch the surface. If rust spots Dongguan mold steel corrosion caused by injection, to use the grinder polishing and spray on a professional anti-rust oil, then the mold in a dry, cool, no dust at the store. In particular for a tire mold cleaning, mold absorb specific wavelengths of laser energy is very small, will not cause damage to the mold surface contaminants (sulfur compounds, inorganic oxides, silicone oils, carbon black, etc.) to absorb large amounts of energy to be instantaneously inflated, vaporized, away from the mold surface, so as to achieve the cleaning effect. Laser cleaning methods are: 1) Laser dry cleaning method, which uses pulsed laser direct radiation decontamination; 2) Laser + liquid membrane method, which first deposited on the surface layer of the substrate film, and then use laser radiation decontamination; 3 ) Laser + inert gas, i.e., while the laser radiation, with an inert gas purging the substrate surface. When the dirt from the surface of the release, it will immediately be blown gas from the surface, in order to avoid contamination of the surface again. Learn from the advanced mode of cooperation overall development layout, attract industry leaders building demonstration of industrial projects, the introduction of domestic research institutes, construction research collaboration agencies to support the development of relevant policies, and strive to 5 years or so to build the annual turnover in the "City of Mineral" demonstration base 50 billion yuan scale.