一种乘用车底盘部件用高表面质量高强钢板及其生产方法
By controlling specific chemical compositions and processes, the problems of high strength and high surface quality of steel plates used in passenger vehicle chassis components have been solved, achieving good mechanical properties and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANGANG STEEL CO LTD
- Filing Date
- 2026-03-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to produce steel plates for passenger vehicle chassis components that meet the requirements for high surface quality and high strength. They suffer from defects such as oxidation streaks and color differences, and the smelting costs are high, making it difficult to meet the requirements for high strength and high elongation.
Steel plates with specific chemical compositions, including a reasonable ratio of C, Si, Mn, Al, Nb, Ti, Cr, Mo, and Ce, are used. The microstructure and surface quality of the steel plates are controlled through smelting, hot rolling, bell-type furnace heating, and pickling processes to avoid the formation of iron oxide scale and ensure high strength and good surface quality.
It achieves high strength (yield strength 680-760MPa, tensile strength 830-900MPa) and good surface quality (no iron oxide scale streaks and color difference) in steel plates, and is easy to smelt, thus reducing production costs.
Smart Images
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