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发明公开
CN105908068A 一种耐疲劳桥梁拉吊索用不锈钢钢丝的制备方法 有权

一种耐疲劳桥梁拉吊索用不锈钢钢丝的制备方法
摘要：
本发明公开了耐疲劳桥梁拉吊索用不锈钢钢丝的制备方法。该不锈钢钢丝，含有下述成分：C：≤0.12％；Si：≤1.00％；Mn：14.0?19.0％；P≤0.06％；S≤0.01％；Cr：18.0?22.0％；Ni：1.0?2.0％；N：0.45?0.65％；余量为铁和不可避免的杂质；所述不锈钢钢丝按照包括如下步骤的方法制备：A、冶炼钢坯；B、钢坯加热；C、钢坯轧制；D、吐丝；E、冷却；F、热处理；G、酸洗，得到酸洗后钢线材；H、冷拔，得到不锈钢钢丝；所述C中，钢线材的直径为6.5mm；不锈钢钢丝的直径为5.7mm；所述冷拔为将酸洗后钢线材进行一道次冷拔得到直径为5.7mm的不锈钢钢丝。
摘要（英）：

The invention discloses a preparation method of a stainless steel wire used for a fatigue-resistant bridge pulling sling. The stainless steel wire comprises 0-0.12% of C, 0-1.00% of Si, 14.0%-19.0% of Mn, 0-0.06% of P, 0-0.01% of S, 18.0%-22.0% of Cr, 1.0%-2.0% of Ni, 0.45%-0.65% of N and the balance iron and inevitable impurities. The stainless steel wire is prepared according to the method comprising the following steps that A, steel billet smelting is conducted; B, steel billet heating is conducted; C, steel billet rolling is conducted; D, spinning is conducted; E, cooling is conducted; F, heat treatment is conducted; G, pickling is conducted, and a pickled steel wire rod is obtained; and H, cold drawing is conducted, and the stainless steel wire is obtained. In the step C, the diameter of the steel wire rod is 6.5 mm. The diameter of the stainless steel wire is 5.7 mm. In the cold drawing step, one-pass cold drawing is conducted on the pickled steel wire rod, so that the stainless steel wire with the diameter being 5.7 mm is obtained.

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