Non-standard bearing steel smelting quality ingredients

Non-standard bearing steel smelting quality ingredients regulations source: bearing | last updated: - 2020 10 - 5% of chromium and hypereutectoid steel with a small amount of manganese and silicon. Chromium can improve heat treatment process characteristics, improve cutting performance and body proportions, quenching reliability, and can promote antirust processing properties of steel and cutting properties. When the chromium content is more than 1. 65%, the content of residual martensite after heat treatment in steel increases, the strength and reliability is reduced, the nonuniformity of cementite, fracture toughness and fatigue limit of steel is reduced. As a result, the magnesium content of high carbon chromium non-standard bearing steel general control in 1,65 % the following. Only to rein in the non-standard bearing steel composition, can according to the heat treatment process are the property of non-standard bearing institutions and intensity. Who read this article also browse: non-standard bearing steel smelting has a high precision of the specifications of the non-standard bearing steel smelting with high precision turn the provisions of the regulations of non-standard bearing steel stainless steel plate specifications precision is higher, this is because the vast majority of non-standard bearing parts must work through pressure forming. In order to save raw materials and improve labor efficiency, the vast majority of non-standard bearing ring is full after forging forming, bearing steel ball is after cold extrusion or hot forming, small specifications of the roller bearing is also after cold extrusion forming. If the specifications of the stainless steel plate precision is not high, can not be accurately measured cutting specifications and net weights, and can't ensure that non-standard bearing parts, product quality is also very easy to cause the destruction of machinery, equipment and mold shell.