Production method of high-strength wind power bolt steel
The invention relates to a production method of steel for a high-strength wind power bolt, which comprises the working procedures of converter smelting, LF furnace refining, RH vacuum treatment, continuous casting, controlled rolling and slow cooling, and the steel comprises the following chemical c...
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| creator | WANG XUJI JU YINJUN ZHANG JIE PAN XIQUAN ZENG FANZHENG YANG GENGCHAO ZHENG JIAN |
| description | The invention relates to a production method of steel for a high-strength wind power bolt, which comprises the working procedures of converter smelting, LF furnace refining, RH vacuum treatment, continuous casting, controlled rolling and slow cooling, and the steel comprises the following chemical components in percentage by weight: 0.30 to 0.44 percent of C, 0.15 to 0.35 percent of Si, 0.30 to 0.60 percent of Mn, 0.50 to 1.20 percent of Cr, 0.45 to 0.75 percent of Mo, 0.10 to 0.30 percent of V, 0.45 to 1.00 percent of Ni, 0.10 to 0.25 percent of Nb, 0.040 to 0.070 percent of Alt, less than or equal to 0.010 percent of P, less than or equal to 0.005 percent of S, less than or equal to 0.010 percent of Sn, less than or equal to 0.20 percent of Cu, less than or equal to 0.0012 percent of O, 0.0090 to 0.0120 percent The produced steel for the high-strength wind power bolt is suitable for manufacturing 14.9-grade wind power bolts with the diameter of 30-80 mm, and has high strength, high toughness, excellent dela |
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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 GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Production method of high-strength wind power bolt steel |
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