PC钢绞线用钢丝高速优质拉拔工艺试验  

High speed high quality wire drawing technology test for PC strand wire

作　　者：杨桂瑜 李微微 石金英 

机构地区：[1]辽宁通达建材实业有限公司,辽宁辽阳111200

出　　处：《金属制品》2015年第1期20-24,共5页Metal Products

摘　　要：为实现PC钢绞线用半成品钢丝的高速优质拉拔,在保证盘条组织性能、减少盘条酸洗脆化、保证酸洗磷化质量的前提下,以φ12.5 mm SWRH82B盘条为原料,入模口温度20 ～ 41℃,出模口温度162 ～ 201℃,工作区角度8°～12°,经过9道次拉拔生产的φ5.06 mm钢丝拉拔速度从6m/s提高到8m/s,抗拉强度达到1 980 MPa,断面收缩率45％以上,延伸率3.0％以上,钢丝拉力试验断口全部为塑性断口,钢绞线性能合格稳定.To realize high speed high quality drawing of semi-finished wire for PC strand, on the promise of guaranteeing wire rod structure property, reducing wire rod pickling embrittlement, guaranteeing pickling phosphorization quality, use diameter 12.5 mm SWRH82B wire rod as raw material, die entrance temperature is 20 -41 ℃ , die exit temperature is 162 ~ 201 ℃, workspace angle is 8 ° - 12°, drawing speed of diameter 5.06 mm wire increase from 6 m/s to 8 m/s after nine passes drawing, tensile strength reaches 1 980 MPa, reduction of area is above 45% , elongation rate is above 3.0% , wire tension test fractures are all plastic fracture, strand property is qualified and stable.

关 键 词：PC钢绞线 高速拉拔 拉拔工艺 压缩率 模具参数 力学性能 

分 类 号：TG178[金属学及工艺—金属表面处理]