The invention discloses a rolling process to eliminate red rust on the surface of high speed wire. The process is as follows: (1) when the oil content of the turbid water is less than 3.0mg/L, the deoiling agent is added in 0.5 to 1g/L; when the 3.0mg/L < 7.0mg/L in the turbid water is less than 7.0mg/L, the deoiling agent is added to 1 to 1.5g/L; the oil content in the turbid water is > 7.0mg At /L, the oil removal agent was added in 1.5 ~ 2g/L; (2) the control temperature of the finishing rolling was 870 + 15 C, and the temperature of the silk was controlled at 900 + 20 C; (3) the surface of the wire was blown by reverse. This process is easy to operate. Only by adjusting the water distribution in the cold section of the rolling line, improving the repercussion pressure and adjusting the temperature of the silk, the red rust on the surface of the high speed wire can be controlled at a lower level, and the dependence on the water quality index of the water system can be reduced. At the same time, under the premise of ensuring the lubrication effect of rolling mill, reducing the volume of oil and gas injection can effectively reduce the consumption of oil and gas, thereby reducing the production cost.
【技术实现步骤摘要】
消除高速线材表面红锈的轧制工艺
本专利技术涉及一种轧钢方法,尤其是一种消除高速线材表面红锈的轧制工艺。
技术介绍
邯钢大型轧钢厂引进意大利pomini轧机,采用摩根轧件闭环控制冷却系统以及斯太尔摩风冷线。投产后大量生产冷镦钢产品,产品性能指标优良,但是集卷收集后的线材表面附着一层红棕色粉末状锈蚀物,影响产品外观,严重恶化钢材耐腐蚀性等性能指标。邯钢高速线材表面红锈问题的主要原因主要是水系统油脂含量偏高、吐丝温度在红锈形成敏感区等。
技术实现思路
本专利技术要解决的技术问题是提供一种效果好的消除高速线材表面红锈的轧制工艺。为解决上述技术问题,本专利技术所采取的技术方案是:(1)当浊环水中油脂含量≤3.0mg/L时,除油药剂按照0.5~1g/L加入;当浊环水中3.0mg/L<油脂含量≤7.0mg/L时,除油药剂按照1~1.5g/L加入;当浊环水中油脂含量>7.0mg/L时,除油药剂按照1.5~2g/L加入;(2)控制精轧入口温度为870±15℃,控制吐丝温度在900±20℃;(3)反向吹扫线材表面。本专利技术控制轧机的油气喷入量,每分钟供润滑油0.8~1.5mL。本专利技术所述步骤(2)中,控制减定径入口温度为880±15℃。本专利技术所述步骤(3)中,吹扫的气体压力为至少0.6Mpa。采用上述技术方案所产生的有益效果在于:本专利技术操作简便,仅通过调整轧线水冷段水量分配、提高反响吹扫压力、调整吐丝温度等手段便可把高速线材表面红锈控制在较低水平,减轻了对水系统水质指标的依赖。同时在保证轧机润滑效果前提下,降低油气喷入量,可有效降低油气消耗,从而降低生产成本。本专利 ...
【技术保护点】
一种消除高速线材表面红锈的轧制工艺,其特征在于,其工艺为:(1)当浊环水中油脂含量≤3.0mg/L时,除油药剂按照0.5~1g/L加入;当浊环水中3.0mg/L<油脂含量≤7.0mg/L时,除油药剂按照1~1.5g/L加入;当浊环水中油脂含量>7.0mg/L时,除油药剂按照1.5~2g/L加入;(2)控制精轧入口温度为870±15℃,控制吐丝温度在900±20℃;(3)反向吹扫线材表面。
【技术特征摘要】
1.一种消除高速线材表面红锈的轧制工艺,其特征在于,其工艺为:(1)当浊环水中油脂含量≤3.0mg/L时,除油药剂按照0.5~1g/L加入;当浊环水中3.0mg/L<油脂含量≤7.0mg/L时,除油药剂按照1~1.5g/L加入;当浊环水中油脂含量>7.0mg/L时,除油药剂按照1.5~2g/L加入;(2)控制精轧入口温度为870±15℃,控制吐丝温度在900±20℃;(3)反向吹扫...
【专利技术属性】
技术研发人员:许斌,徐斌,刘建路,孙彩凤,李海斌,郗雄涛,高建,任刚,
申请(专利权)人:河钢股份有限公司邯郸分公司,
类型:发明
国别省市:河北,13
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。