超高强钢拉拔影响单丝扭转性能的相关因素  

Influence of relevant factors on torsion performance of filament in ultra-high strength steel drawing

作　　者：姚利丽[1,2] 周志嵩 王威 朱晨露 石荣珠[1,2] 陈金彬 Yao Lili;Zhou Zhisong;Wang Wei;Zhu Chenlu;Shi Rongzhu;Chen Jinbin(Jiangsu Xingda Steel Tyre Cord,Co.,Ltd.,Taizhou 225721,China;Jiangsu Keyr Laboratory for Structural and Functional Metal Composite Materials,Taizhou 225721 ,China)

机构地区：[1]江苏兴达钢帘线股份有限公司,江苏泰州225721 [2]江苏省结构与功能金属复合材料重点实验室,江苏泰州225721

出　　处：《金属制品》2019年第3期1-7,共7页Metal Products

摘　　要：单丝拉拔过程中出现分层。从实际生产出发,结合单丝拉拔分层理论,确定在超高强单丝拉拔过程中双模的使用、塔轮的绕法及聚晶模的使用对分层的影响。试验表明:双模使用有利于单丝扭转性能提高,成品道次使用双模对单丝分层影响最大;在拉拔不断丝的前提下,可通过减少绕线来提高单丝品质;可在后几道使用聚晶模代替钨钢模,能改善单丝韧性,提高扭转值。相关因素的确定为生产实际中提高单丝扭转性能提供可直接实施且行之有效的方法。Filament occurs delamination in drawing process. Based on the production practice and the delamination theory of filament drawing, the influences of the use of double dies, the winding method of step pulley and the use of polycrystalline die on the delamination of ultra-high strength filament drawing were determined. The experiment shows that the use of double dies is beneficial to improve the torsion performance of filament and the use of double dies for finishing pass has the greatest influence on the delamination of filament. Under the premise of continuous drawing, the quality of filament can be improved by reducing winding. Polycrystalline die can be used in the latter several passes instead of tungsten steel mold. Compared with tungsten steel die, polycrystalline die can improve the toughness of filament and increase the torsion value. The determination of the correlative factors provides a direct and effective method to improve the torsion performance of filament in practical production.

关 键 词：钢帘线 超高强度 聚晶模 扭转性能 分层理论 

分 类 号：TG356.46[金属学及工艺—金属压力加工]