摘要
介绍了超高压、特高压输电线路用＂JL/G1A-1400/135-84/19＂大截面钢芯铝绞线生产工艺流程,主要原材料选择A8型号的铝杆,利用七道次拉拔,总压缩率达到了77.56%,钢芯用镀锌钢丝上锌量达到了262 g/m2,扭转次数22~24,抗拉强度达到1 486 MPa,绞线的截面积达到了1 400 mm2。经检测,研制出的钢芯铝绞线各项力学性能、结构尺寸、电阻率等指标均达到了研制目标要求。
The paper introduces the production process flow of JL/G1A-1400/135-84/19 steel cored aluminum strand used for ultrahigh voltage power transmission line. Main material： A8 aluminum rod; drawing passes： 7; total reduction rate： 77.56%; zinc on galvanized steel wire for steel core： up to 262 g/m% turning number： 22-24; tensile strength： 1 486 MPa; strand section： 1 400 mm2. Inspection showed that all indices of the developed steel cored aluminum strand such as mechanical properties, structure size and resistivity fulfill the goal of research and development.
出处
《天津冶金》
CAS
2015年第2期26-29,32,共5页
Tianjin Metallurgy
关键词
大截面
钢芯铝绞线
架空导线
输电线路
特高压
large section
steel cored aluminum strand
overhead conductor
power transmission line
ultrahigh voltage
