silicon nitride ceramic industrial threaded bolt screw

silicon nitride ceramic industrial threaded bolt screw  Reputation depends on quality,  quality comes from Hard! Silicon Nitride Ceramic: With the increase of nickel content in magnetic card austenitic stainless steel, silicon nitride ceramics reduces the critical carbon content for intergranular corrosion, that is, the intergranular corrosion sensitivity of steel increases. As for the resistance to pitting and crevice corrosion of austenitic stainless steel Performance, the role of nickel is not significant. In addition, nickel also improves the high temperature oxidation resistance of austenitic stainless steel. This is mainly due to the improvement of the composition of the chromium oxide film, the structure and performance of the nickel, and the higher the nickel content, the more harmful it is. This is mainly due to the low melting point nickel sulfide at the grain boundary in the steel. Generally speaking, simple silicon nitride (and chromium manganese…

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