Virtue Pipe Co., Ltd. Shandong Liaocheng in Shandong Liaocheng Economic Development Zone, the company specializes in producing various types of precision light pipe products. Production of precision light pipe looks smooth, uniform thickness, no oxide layer, high precision. Sales of precision light tubes, precision steel tubes, cold rolled precision seamless tube, precision seamless tube and other products widely used in automobiles, motorcycles, power, petrochemical, shipbuilding, aerospace, bearings, pneumatic components, fuel tanks, boiler equipment, medical equipment, fitness equipment and other industries. Material can be divided into: 10 # 12crmo precision light pipe, 20 #, 35 #, 45 #, GCr15,40Cr. 16Mn and so on. Various national standard and customized non-standard precision tubes according to user needs. Special materials, specifications can be booked in advance, the company has 60 fine drawing unit 2 10 # precision light tube, 50 fine drawing unit 3 sets, produce diameter 10-90mm wall thickness 1-14mm precision steel tubes, made of 10 #, 20 #, 45 #, 16Mn bearing steel, 20Cr, 40Cr. ⑴ surface of the steel surface hardening heat treatment: rapid cooling of the surface before the steel by rapid heating to above the critical temperature, but the heat has not yet had time to spread to the heart of the Ministry, so that you can put in the surface layer is quenched martensite, while Heart Ministry did not phase transition gr15 bearing steel, which achieved a surface hardening and heart Ministry same purpose. Suitable for medium carbon steel. ⑵ Chemical treatment: refers to the atoms of chemical elements bearing steel production capacity when the atom by means of a high temperature diffusion, it penetrate into the surface layer to the workpiece, to change the chemical composition and structure of the surface layer, the surface of the steel so as to achieve a heat treatment process layer has specific requirements and performance of the organization. According to the different kinds of infiltration elements, chemical treatment can be divided into four carburizing, nitriding, cyanide and alloying method. Carburizing: carburizing is instructed to process carbon atoms into the steel surface layer. Also the low-carbon steel workpiece having a surface layer of high-carbon steel, and then after quenching and tempering, the surface layer of the workpiece having a high hardness and wear resistance, while the central portion of the workpiece remains a low carbon steel and toughness plasticity. Nitriding: also known nitride bearing steel standard, is a pointer to the steel surface layer of nitrogen atoms penetrate the process. Its purpose is to improve the hardness and wear resistance of the surface layer and to improve the fatigue strength, corrosion resistance and so on. Current production in the use of gas nitriding method. Cyanide: also known as carbonitriding, refers to the process of infiltration of steel while the carbon atoms of nitrogen atoms. It has the characteristics of the steel surface carburizing and nitriding. Alloying: refers to the metal atoms into the surface layer of the steel process. It is the surface layer of the steel alloying, so that the workpiece surface has certain alloy steel, special steel properties, such as heat, wear, oxidation and corrosion resistance. There are commonly used in the production of aluminized, Chromizing, boriding silicon. Cold rolled bearing steel | virtues of Industry (certified) | Bearing Steel Pipe Co., Liaocheng provided by virtue of Industry. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) Shandong Liaocheng, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Industry leaders in the United States and Germany with the staff warmly welcome all inquiries negotiations to create the virtues pipe industry a better future.