Ultrahigh-strength automobile suspension guide arm steel and smelting method thereof
The invention discloses ultrahigh-strength steel for an automotive suspension guide arm and a preparation method of the ultrahigh-strength steel, and the ultrahigh-strength steel comprises the following components in percentage by weight: 0.57%-0.61% of C, 1.25%-1.45% of Si, 0.90%-1.10% of Mn, less...
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| creator | JU YINJUN WANG XUJI ZHANG JIE LIU WEI PAN XIQUAN YANG GENGCHAO ZHENG JIAN LUO JINGXIAN |
| description | The invention discloses ultrahigh-strength steel for an automotive suspension guide arm and a preparation method of the ultrahigh-strength steel, and the ultrahigh-strength steel comprises the following components in percentage by weight: 0.57%-0.61% of C, 1.25%-1.45% of Si, 0.90%-1.10% of Mn, less than or equal to 0.012% of P, less than or equal to 0.010% of S, 1.05%-1.15% of Cr, 0.015%-0.025% of Nb, 0.25%-0.35% of Ni, 0.012%-0.027% of Al, 0.0035%-0.075% of N, 0.15%-0.25% of Cu, 0.010%-0.020% of Ti and the balance of Fe and inevitable impurities. The smelting production process comprises the steps of combined blown converter smelting, refining slag washing and deoxidation, external refining, vacuum degassing and continuous pouring. The continuous casting blank produced by smelting is high in purity, uniform and stable in component, good in internal compactness, low in non-metallic inclusion and total oxygen content, the range of macrosegregation main components of the section of the casting blank is controll |
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The smelting production process comprises the steps of combined blown converter smelting, refining slag washing and deoxidation, external refining, vacuum degassing and continuous pouring. 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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Ultrahigh-strength automobile suspension guide arm steel and smelting method thereof |
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