The Development of Hot Rolled Automobile Beam Steel Plates 500L-Z with Excellent Surface Oxide Layer
This paper has determined the compositions and hot rolling processes of the hot rolled beam steel plates with excellent surface oxide layer for automobiles by investigating the oxide layer forming principle and its influence factors, and the feature of the steel oxide layer. The microstructure, mechanical properties, oxide layer shape and structural composition of the steel plates are analyzed by using metallographic structures examination, SEM analyzing, X-ray diffraction instrument and mechanical properties testing. The result shows that the trial hot rolled frame steel plates have an excellent oxide layer adhesion, the Fe3O4 proportions is greater than 85％ in the oxide layer, and the oxide layer thickness is less than or equal to 10μm. The product has been trial-manufactured more than 100 thousands ton, and used to stamp the beam parts of automobiles straightly in no pickling process. The oxide layer scarcely scales off from the steel plates, and the effect is remarkable.
automobile beam 500L-Z Fe3O4 oxide layer
SHI Xiao-Guang HAN Bin XU Xin DONG Yi LIU Ren-Dong
An Gang Steel Co. Ltd, Liao Ning, An Shan 114001
国际会议
The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)
北京
英文
633-637
2011-05-31（万方平台首次上网日期，不代表论文的发表时间）