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发明授权
CN101550519B 一种车轮用热轧双相钢板及其生产方法 失效 - 权利终止

一种车轮用热轧双相钢板及其生产方法
摘要：
本发明属于热轧双相钢板技术领域，特别涉及车轮用热轧双相钢板及其生产方法。本发明所要解决的技术问题是提供一种同时具有优良的成形性和延伸凸缘性的车轮用热轧双相钢板，其化学成分的重量百分比为：C：≤0.10％，Si：≤1.0％，Mn：≤1.70％，Cr：0.30～0.60％，Ti：≤0.01～0.06％，B：0.0005～0.01％，Ga：0.001～0.015％，P：≤0.025％，S：≤0.010％，N：≤0.060％，Ca：0.001～0.01％，余量为铁。本发明车轮用热轧双相钢板的屈服强度≤450MPa，抗拉强度≥540MPa，延伸率≥25％，具有力学性能稳定、成型性能好、加工硬化速率高，延伸凸缘性好及疲劳寿命高和生产方法简单等特点，可用于汽车车轮等安全结构件。
摘要（英）：

The invention belongs to hot rolling biphase plate technology field, especially relates to hot rolling biphase plate for vehicle wheel and method for its production. The technical problem which the invention accounts for is indicated that provide a biphase plate for vehicle wheel with good formability and elongation convexity at the same time, and the weight percentage of chemical constituents inthe aforementioned biphase plate is listed that C <=0.01%, Si <=1.0%, Mn <=1.70%, Cr 0.30-0.60%, Ti 0.01-0.06%, B 0.005-0.01%, Ga 0.001-0.015%, P <=0.025%, S <=0.010%, N <=0.060%, Ca 0.001-0.01%, andthe other is iron. The yield strength of the plate in this invention is less than or equal to 450MPa, tensile strength is more than or equal to 540MPa, unit extension is more than or equal to 25%, andit has the features of steady mechanical properties, good formability, high rate of work hardening, good elongation convexity, long fatigue life and simple production method, which makes it can be used in producing the security architecture pieces such as automobile wheels.

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