Shoddy steel material containing impurities, the density of small steel imports XW-41, and size tolerance serious, so in case there is no vernier caliper, check that it can be weighed. For example, for steel 20, the national standards set forth in the most negative tolerance of 5% XW-41 suppliers, when the length of a single theory 9M it weighs 120 kg, and its minimum weight should be: 120X (L-5% ) = 114 kg, weighing out the actual weight of 114 kg single smaller than it is shoddy steel, because it exceeded the 5% negative tolerance. PVD is divided into a vacuum deposition, sputtering and ion plating. Ion plating is a combination of vapor deposition and sputtering techniques, ion plating has a strong adhesion force, are good throwing power, the base material to be plated and plating materials can be widely with other advantages, to thereby obtain a wider range of applications. In recent years, multi-arc ion plating people's attention. At present, more in the mold used is ion plating TiN XW-41, this film is not only high hardness and good toughness film, combined with strong, high temperature. Multiple TiN film developed on the basis of such (TiAl) N, (TiCr) N, the performance is better than TiN, is a kind of new film is more promising. When the mold to complete production tasks 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 XW-41 tool steel, 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. Yong Wei mold steel, XW-41 tool steel, Qijiang XW-41 provided by Yong Wei steel mold. Looking for "Die steel, DC53, SKD11.SUS440C, SUS420" reliable supplier, choose to have the entire network ShangMeng Certified: Dongguan City An Yongwei mold steel shop (www.dgyongwei.com), trustworthiness and reliability, now click on "Commercial Union Support" on page live chat with us now!