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Measures To Prevent Damage To The Protective Film Of Stainless Steel Wire

Sep 29, 2020

Steel carburizing is a chemical heat treatment process in order to enhance the carbon content of the steel surface layer and a certain carbon concentration gradient. The steel is heated and insulated in the carburizing medium to make the carbon penetrate into the surface layer. The purpose is to obtain high carbon on the surface of low carbon steel. After proper heat treatment, the core with high hardness and high temperature resistance on the surface can still maintain certain strength, high plasticity and toughness.

This is a chemical heat treatment technology widely used in the production of stainless steel wire. Suitable for low-carbon and low-alloy steel parts, such as gears, piston pins, sleeves, high fuel injection parts, etc., that bear wear and large impact loads at the same time. Large forgings are mainly forged directly from steel ingots. The influence of smelting, ingot casting, forging and other processes on the internal quality of the castings needs to be considered during heat treatment. As long as the influencing factors are the existence of various smelting defects with uneven chemical composition, many coarse and uneven grains Forging stress and heat treatment stress due to gas and impurities. The purpose of heat treatment of large forgings after forging is to prevent white spots and hydrogen embrittlement, improve the internal structure of forgings, eliminate forging stress, reduce hardness, improve cutting performance, obtain good mechanical properties, or prepare for subsequent heat treatment. The cause of frictional corrosion is that the protective film of the stainless steel hexagonal bar is destroyed by the frictional vibration, and the bare metal is rapidly oxidized, repeatedly worn and oxidized, and destroyed.