HSBC Henan stainless steel, I Main, Henan stainless steel pipe, stainless steel plate, Henan, Henan stainless steel processing, Henan stainless steel, stainless steel life Henan, Henan and stainless steel processing, stainless steel flanges, stainless steel products, such as stainless steel elbow with many steel products the degree of surface decarburization related steel products. For example, the rope of life depends on its fatigue strength and wear resistance, if the rope surface decarburization exceeded, will reduce the carbide surface and wear as a strengthening phase phase, and thus will directly affect the performance of these two . In addition, tool steel, bearing steel surface decarburization if not cleaned, will make the tool steel, bearing steel surface layer hardness and abrasion resistance is lowered, and at the time of quenching, due to the volume change in different leaving the outer surface of workpiece cracks. So, how to prevent surface decarburization of steel products is a problem in the production process should be noted. Foreign imports of wire rod decarburization layer 0.02 ~ 0.04mm, wire rod surface Kobe, Japan can be done without removal, and the average depth of the domestic like product decarburization than 0.05mm. Need to take steps to change this situation. Problem solving surface decarbonization, key in the heat treatment process. Wire due to oxidation and decarburization are simultaneously carried out, therefore, during the heat treatment as long as possible so that the wire to avoid contact with air can achieve the purpose of improving the decarburization. For example, the American Spring Wire Company dual lead slot to handle oil quenching and tempering valve spring wire, and achieved the desired effect. The production process is: first slot from molten lead wire austenitizing effect, advance the lead was heated to 871 ℃, the wire was in the lead through to achieve austenitizing, quenching and then into the tank, and then into the first two molten lead groove tempering (482 ℃). Because the wire is not in contact with air in molten lead, and effectively prevent the decarbonization. The main problem with this process needs to be resolved is how to prevent lead dust contamination. Address: Zhengzhou Zhongyuan District Construction Road Tel: 086-13503455552 Phone: 086-0371-63337557 Fax: 086-0371-86562188 For more information, please visit http://www.fengchengbxg.com/