高档雨刷用不锈钢丝开发

Development of stainless steel wire for high-grade wiper

采用SUS304生产的Ф1.76 mm高档雨刷用不锈钢丝用量大,但质量难以控制。不锈钢丝技术要求:表面光洁;维氏硬度约400 HV;工字轮头部和尾部的不锈钢丝弹宽变化均不超过2 cm,弹高变化均不超过1 cm;盘载质量不小于350 kg。选用Ф5.5 mm盘条粗拉至Ф2.10 mm,经质量浓度为150～300 g/L的硫酸溶液电解,(400±50)℃预热、(1 100±10)℃固溶处理,收线速度9 m/min,再进一步细拉至Ф1.76 mm。结合优化的生产工艺和适当的设备改造,可以生产出满足客户要求的不锈钢丝。

Diameter 1.76 mm stainless steel wire for high-grade wiper produced with SUS304 is large quantity, but the quality is difficult to control. Technical requirements： surface smooth, Vickers hardness is about 400 HV, stainless steel wire play wide change in spool head and tail is both no more than 2 cm, play high change is both no more than 1 cm, plate load mass is no less than 350 kg. Diameter 5.5 mm wire rod is selected drawn to diameter 2.10 mm, after mass fraction 150 ~ 300 g/L sulfuric acid solution electrolysis, （400 ± 50） ℃ preheat, （ 1 100 ±10）℃ solution treatment, speed of taking up 9 m/min, the wire is drawn to diameter 1.76 mm. Combining with optimized production process and appropriate equipment modification, stainless steel that meets customer＇ s requirements can be produced.