1770 MPa级Z形热镀锌铝合金钢丝生产工艺探讨  

Discussion on production process of 1770 MPa grade Z-shaped hot-dip galvanized aluminum alloy steel wire

作　　者：喻仁云 Yu Renyun(Guizhou Wire Rope Incorporated Company,Zunyi 563000,China)

机构地区：[1]贵州钢绳股份有限公司,贵州遵义563000

出　　处：《金属制品》2020年第5期15-17,20,共4页Metal Products

摘　　要：采用10.0 mm、热处理强度为1350~1400 MPa的87A盘条,全模拉方式生产1770 MPa级Z形热镀锌铝合金钢丝。双缸镀锌、垂直牵引法生产,钢丝出第1个锌锅时,用石棉盘根进行抹拭,出第2个锌铝合金锅采用氮气抹拭,保证钢丝表面质量。经检验,得出1770 MPa级Z 5.0形热镀锌铝合金钢丝抗拉强度1865 MPa,扭转18次,弯曲13次,锌层面质量325 g/m 2,铝质量分数5.6%,伸长率7%。生产的Z 5.0形钢丝达到技术要求,并满足锌铝合金全密封钢丝绳生产及相关标准要求。Use 87A wire rod with diameter 10.0 mm and heat treatment strength of 1350~1400 MPa to produce 1770 MPa grade Z-shaped hot-dip galvanized aluminum alloy steel wire by full-die drawing method.Double-cylinder galvanized,vertical traction method production,When steel wire comes out of first zinc pot,wipe it with asbestos packing,and wipe second zinc aluminum alloy pot with nitrogen to ensure surface quality of steel wire.After inspection,the tensile strength of 1770 MPa grade Z 5.0 hot-dip galvanized aluminum alloy steel wire is 1865 MPa,torsion 18 times,bend 13 times,zinc layer mass is 325 g/m 2,aluminum mass fraction is 5.6%,elongation is 7%.The produced Z 5.0 steel wire meets technical requirements,and meets requirements of zinc aluminum alloy fully sealed wire rope production and related standards.

关 键 词：Z形钢丝 锌铝合金 氮气抹拭 面质量 抗拉强度 

分 类 号：TG178.2[金属学及工艺—金属表面处理]