载货汽车弹簧钢板的热处理工艺采用整体感应加热表面淬火;在感应加热的基础上,强烈的喷水冷却。并且专门制订了控制淬透性钢。新工艺可获得高强度的淬火层(σ_b=2500MPa),强化心部(σ_b≌1200MPa)和降低表面层的残余应力,保证了弹簧具有高的使用性能,并可使弹簧质量减轻15％～25％,使弹簧钢板热处理过程自动化,改善工人劳动条件,并靠取消采用淬火油改善热处理车间的生态气氛,以及取消喷丸强化工序。 The heat treatment process of truck spring steel plate adopts integral induction heating surface quenching; on the basis of induction heating, strong water jet cooling. And specially formulated to control the hardenability of steel. The new technology can obtain high-strength quenched layer (σ_b = 2500MPa), strengthen the heart (σ_b≌1200MPa) and reduce the residual stress of the surface layer to ensure that the spring has high serviceability and can reduce the spring mass by 15% to 25% %, The spring steel plate heat treatment process automation, improve working conditions of workers, and by eliminating the use of quenching oil to improve the ecological atmosphere of the heat treatment plant, and cancel the shot peening process.