车辆用含铜热轧钢板生产工艺研究

车辆用含铜热轧钢板中的铜在钢中可以钝化钢板表面腐蚀反应的阴阳极，或者形成致密锈层，延缓、阻止锈蚀反应进行，提高耐蚀性。但是铜在钢中极易在晶界富集，引起铜脆缺陷。通过研究冶炼工艺、稀土加入工艺和加热工艺，确定了合理可行的生产工艺，有效地防止了铜脆缺陷的产生。

A Research on Production Technology for Hot Rolling Copper-containing Steel Plate Used in Vehicles

Copper in hot rolling copper containing steel plate can passivate the cathode anode of corrosion reaction on plate surface and form a dense anti rusting layer,so the rusting reaction is postponed and prevented so the corrosion resistance is enhanced.However,copper enrichment around grain boundaries in copper containing steel plate leads to a kind of defect called copper brittleness.Through a research on the technologies of smelting,adding rare earth and heating,a reasonable and feasible production technology is found,which effectively prevent the defect of copper-brittleness.