PDF《60Si2CrVAT弹簧钢的生产实践》

第16卷第7期2006年7月 中国冶金 China Metallurgy V01.

16,No.7 July

2006 60Si2CrVAT弹簧钢的生产实践 张春红1, 黄平惠2, 田巧丽1 (1.贵阳特殊钢有限责任公司技术中心,贵州贵阳550005;

2.贵州师范大学,贵州贵阳550001) 摘要:采用30 tEBT电弧炉一30 tLF(VD)钢包精炼炉一浇注700 k9铸锭的工艺,生产60Si2CrVAT弹簧钢;

经95650 mm半连轧机组开坯、高精度圆钢半连轧机轧制成≯13~庐28 ram;

无芯磨床磨光,Ra≤3.2扯m.检验结 果表明,钢中础(o)≤13*10~,训(H)≤1.3*10一,A,B类细系夹杂≤1.0级,其制品的抗疲劳寿命超过300 万次. 关键词:60si2CrVAT弹簧钢;

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力学性能 中图分类号:TGl42.75 文献标识码:A 文章编号:1006―9356(1006)07―0013―03 Production Practice of Spring Steel 60Si2CrVAT ZHANG Chun―hon91,HUANG Ping―hui2,TIAN Qiao―lil (1.Technical center of Guiyang Special Steel Co.,Ltd.,Guiyang 550005,Guizhou,China;

2.Guizhou Normal University,Guiyang 550001,Guizhou,China) Abstract:Spring steel 60Si2CrVAT is produced in Guigang by

30 t EBT arc furnace-30 t LF(VD)ladle furnace-700 kg ingot casting process.The ingot is bloomed by

650 mm semi―continuous rolling mill,sequenyly rolled to叠13~ $28 mm by high-quality round bar semi-continuous rolling mill and polished to Ra≤3.2 btm by centerless ground machine.Test results show that the oxide content iS