| 淬回火工艺对弹簧钢60Si2CrVAT 力学性能的影响 |
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| 引用本文： | 李英,聂爱诚,吴小林,赵晗. 淬回火工艺对弹簧钢60Si2CrVAT 力学性能的影响[J]. 特殊钢, 2006, 27(4): 61-62 |
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| 作者姓名： | 李英 聂爱诚 吴小林 赵晗 |
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| 作者单位： | 江阴兴澄特种钢铁有限公司，江阴214429 |
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| 基金项目： | 国家863项目基金资助（编号2003AA331180） |
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| 摘 要： | 杭钢用80 t UHP DC电弧炉-钢包炉(LF)-200 mm×200 mm连铸及700×1／650×3轧机轧制,生产直径75 mm的Q390B低合金高强度圆钢。LF精炼时控制(％)0．16-0．19C,1．35-1．52Mn,0．03～0．05V,≤0．025S,≤0．025P,喂CaSi线并全程吹氩,连铸采用长水口保护浇注。检验结果表明,钢材具有良好的表面质量、低倍组织,夹杂物≤2．0级,钢的σB 380～465 MPa,σb 545～625 MPa,δ22．0％-28．5％,Ak 98-210 J。
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| 关 键 词： | 弹簧钢60Si2CrVAT 淬火 回火 力学性能 |
| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-03-22 |
Effect of Quenching and Tempering Process on Mechanical Properties of Spring Steel 60Si2CrVAT |
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| Li Ying,Nie Aicheng,Wu Xiaolin,Zhao Han. Effect of Quenching and Tempering Process on Mechanical Properties of Spring Steel 60Si2CrVAT[J]. Special Steel, 2006, 27(4): 61-62 |
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| Authors: | Li Ying Nie Aicheng Wu Xiaolin Zhao Han |
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| Affiliation: | Xingcheng Special Iron and Steel Co Ltd, Jiangyin 214429 |
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| Abstract: | The φ18 mm high strength spring steel 60Si2CrVAT(0.57C,1.65Si,1.04Cr,0. 13V)was produced by 100 t EBT EAF-LF(VD)- 300 mm×320 mm billet casting process at Xingcheng Special Steel. The S+ P content in finished steel was ≤200×10-6 and average oxygen content ≤12×10-6.Because the V carbon-nitride couldn't be dissolved completely below 900 ℃,the heat treatment test was carried out to obtain that the tensile strength was 1950~1970 MPa and elongation was 9%～12% by quenched at 910 ℃ for 60 min and tempered at 410 ℃ for 90 min. |
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| Keywords: | Spring Steel 60Si2CrVAT Quenching Tempering Mechanical Properties |
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