• Categories:Company news
• Author:
• Origin:
• Time of issue:2018-12-06 13:58

(Summary description) Jiangsu Nanyang Machinery Manufacturing Co., Ltd. specializes in the design and manufacture of various types of high-frequency welded pipe units, stainless steel precision welded pipe units, high-precision steel-plastic and stainless steel composite welded pipe units; design and manufacture of various specifications and models of welded pipe molds-rolls, special-shaped rolls, thus The products have been serialized and enjoy a high reputation in the industry. As a manufacturer of high-frequency welded pipe units in Yangzhou, Nanyang Machinery has sufficient knowledge of steel pipes and other materials. Today, we will teach you how to increase the service life of steel pipes: 　　 is the most commonly used method for steel substrate coating, and it is also the most effective method among various methods. Galvanizing greatly increases the corrosion resistance of steel, and also increases the sales of hot-dip galvanized square pipes and hot-dip galvanized angle steel. 　　As the process temperature of hot-dip galvanizing is relatively high, it is easy for materials with lower tempering temperature to be annealed during the galvanizing process, thereby reducing the hardness. In addition, the use of hot-dip galvanizing for mating parts should also consider the influence of the thickness of the coating on the tolerance of the fit. 　　Hot-dip galvanizing is to immerse the rust-removed steel components in a zinc solution melted at a high temperature of about 600°C to attach a zinc layer to the surface of the steel components. The thickness of the zinc layer shall not be less than 65μm for thin plates under 5mm and no less than 86μm for thick plates. So as to play the purpose of anti-corrosion. In recent years, a large number of profiled steel plates in the light steel structure system have appeared. Hot-dip galvanizing is also used to prevent corrosion. The first process of hot-dip galvanizing is pickling and rust removal, followed by cleaning. Incomplete two processes will leave hidden dangers to corrosion prevention, so they must be handled thoroughly.