一种不锈钢轮毂材料及轮毂生产方法

By using stainless steel materials and specific processes, stainless steel wheel hubs are manufactured, overcoming the shortcomings of carbon steel and aluminum alloy wheel hubs in terms of corrosion resistance, fatigue resistance, and environmental friendliness, thus achieving the production of high-performance and environmentally friendly wheel hubs.

CN117363994BActive Publication Date: 2026-07-17ANGANG LIANZHONG STAINLESS STEEL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANGANG LIANZHONG STAINLESS STEEL CORP
Filing Date
2023-11-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing carbon steel and aluminum alloy automotive wheels have shortcomings in corrosion resistance, fatigue resistance, and the environmental friendliness of their processing technology, resulting in environmental pollution and unsatisfactory service life.

Method used

Stainless steel wheels are manufactured using stainless steel materials and through specific chemical compositions and processes, including electric furnace, converter, refining, hot rolling, solution annealing, pickling, cold forming or hot forming, etc. Nb and trace amounts of B are added to improve material properties, eliminating the need for electrophoretic coating or electroplating processes.

Benefits of technology

Stainless steel wheels offer significantly improved corrosion resistance and fatigue resistance, extending their service life and improving environmental friendliness. Their tensile strength is 1.25 times that of DP600, and their fatigue resistance is 2-4 times that of carbon steel and aluminum alloys, avoiding the environmental pollution associated with electrophoretic coating.

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Abstract

本发明涉及一种不锈钢轮毂材料及轮毂生产方法，化学成分按重量百分比包括：C≤0.03％，Si≤1.0％，Mn：1.0％～2.0％，P≤0.03％，S≤0.002％，Ni：4.5％～6.5％，Cr：21％～24％，Mo：2.5％～3.5％，N：0.14％～0.22％，Nb：0.05％～0.3％，Al：0.010％～0.030％，B：0.0005％～0.004％，余量为Fe和不可避免杂质元素。优点是：增加材料的可抛光性、可焊接性、热加工性能，改善材料的韧性和可塑性。材料耐蚀性能与碳钢轮毂电泳后的表面耐蚀性相当。该不锈钢轮毂的生产过程中免去了电泳涂装或电镀工序，对环境更友好。
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