10B21高强度冷镦钢盘条的生产.pdf

35 5 2009 10 V o l1 35 N o15 M eta l P roduc ts O c tober 2009 do:i 10. 3969/ .j issn. 100 3- 4 226. 2009. 05. 0 19 10B21 万国喜 翟林甫 杨晓奇 刘艳红 张晓峰 ( 455004) 10. 9 ª6. 5 mm 10 B2 1 N O B ; ; 20 ~ 30 e ; 0. 3~ 1 e / s 950~ 1 000 e 850 ~ 860 e 10B21 10 B2 1; ; ; ; ; TG 335. 6+ 3 Production of 10B 21 h igh strength cold h ead ing steel w ire rod WAN Guo-x,i ZHA I Lin-fu, YANG X iao-q,i LIU Yan-hong, ZHANG Xiao-feng (A nyang Iron and Steel Co. , L td. , A nyang 455004, Ch ina) A bstrac t T o introdu ce the produ ction process of diam eter 6. 5 mm 10 B2 1 co ld head ing stee l w ire rod fo r produc ing 10. 9 g rade h igh strength standard p art. To strictly contro l the content of N and O in stee l sm elting process to stab ilize the ab- sorptiv ity o f B to mi prove h ardenability to control a lum inum in all process and one tmi e feeding w ire in re f ining pro cess to ra ise the sup erheat 20 ~ 30 e higher th an no rm al in continuou s casting process to mi prove casting b illet qua lity to a- dopt contro l coo ling process o f 0. 3~ 1 e / s hea ting tem perature 950 ~ 1 000 e w ire rod lay ing at 850 ~ 860 e in ro lling process qu alif ied 10 B2 1 co ld heading steelw ire rod is produ ced su ccessfu lly in high speed w ire rod m ill and each indexes o f produ cts reach requ irem en ts. K eyw ords 10B2 1 w ire rod; high strength co ld head ing stee;l com position contro l; re fine; continuou s cast; ro lling contro l