Abstract： In the hot forming process, the iron oxide scale was not fully removed by shot blasting, resulting in a layer of black iron oxide scale on the surface after heating, which then affected the measurement and precise control of the heating temperature. The box heating furnace, field emission electron microscope and electron backscatter diffractometer were used to analyze the change rule of oxide scale thickness and structure of 460 MPa automobile axle housing steel under two different hot rolling process conditions. The studies showed that the oxide scale structure under the condition of Process II (shorttime steel burning at low temperature, high temperature final rolling, coiling process) was easier to be removed by shot blasting. After shot blasting and heating simulation experiments, there was no oxide scale covering on the surface, which could meet the requirements of temperature measurement.
马聪，汪永国，刘阳，吴胜付，谷海容，崔磊. 热轧高强钢表面氧化铁皮的控制与改善[J]. 物理测试, 2022, 40(5): 1-.
MA Cong,WANG Yongguo,LIU Yang,WU Shengfu,GU Hairong,CUI Lei. Control and improvement of oxide scale on the surface of hotrolled highstrength steel. PHYSICS EXAMINATION AND TESTING, 2022, 40(5): 1-.
2022, Vol. 40 
