Effect of surface treatment on the properties of seamless pipes

　　Surface heat treatment is a way to change the surface properties by changing the microstructure of the surface layer of the seamless pipes.Surface hardening one one changes in the surface layer, and does not change the surface chemical composition of the heat treatment. It can be used in high frequency, medium frequency or power frequency induction heating mode or by flame heating method. Their common characteristics are managed to seamless pipes surface rapidly heated to quenching temperature, and the heat has not yet spread to parts, then rapidly cooling, the surface hardness of high, and heart still has high toughness.

　　Chemical treatment of one one seamless pipes surface chemical composition and microstructure of the change of the heat treatment. Chemical heat treatment in accordance with the surface of seamless pipes infiltration of different elements, can be divided into carburizing, nitriding, carbon and nitrogen infiltration, infiltration of metals and other methods. It is very effective to improve and improve the wear resistance, corrosion resistance and fatigue resistance of seamless pipes. At present, the development of chemical heat treatment is rapid, and the application of new technology is very large.

　　We have adopted advanced production equipment and technologies to manufacture our line pipe and structural pipe, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.

　　In mechanical engineering, many of the machine parts, such as internal combustion engine crankshafts and gears, the camshaft and significant slowdowns in gear, requires not only have enough toughness, ductility and flexural strength of the core and surface in a certain thickness, high hardness, high wear resistance and high fatigue strength.