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天钢高线自1995年投产以来,经历了三年的达产期,于1998年11月达到设计能力,经分析,影响产量提高的主要因素是有效作业率较低。而制约作业率提高的关键因素,则是工艺、设备缺陷和操作技能低下,造成轧钢过程中轧废居高不下。1996年中途轧废量占总检验量的比率为3.2％,1997年为2.64％。由于中途轧废率较高,处理堆钢的停机时间占了非计划作业时间的首位,影响了提高产量。中途轧废的经济损失直接造成吨钢成本升高。为此,1998年高线厂成立了以总工程师为首的降低中途轧废质量攻关小组。按照中途轧废的区域频率,分析排查出影响轧废的八大因素,并相应制定了五大对策。动员全厂各级技术人员分别从
Since its launch in 1995, Tiangang High Line has experienced a full-year production of three years and reached its design capability in November 1998. After analysis, the main factor affecting the production increase is the lower effective operating rate. The key factors restricting the improvement of operating rate, it is the process, equipment defects and low operating skills, resulting in the rolling process of rolling high. In mid-rolling waste in 1996 accounted for the proportion of the total test was 3.2% in 1997 to 2.64%. Due to the high rate of scrap rolling midway, the downtime for handling the stack steel accounted for the top place for unscheduled work and affected the increase in output. Rolling waste economic losses caused a direct increase in the cost of steel. To this end, in 1998 high-line factory set up a chief engineer to reduce intermediate rolling scrap quality research team. In accordance with the regional frequency of rolling waste, the analysis identified eight factors affecting the rolling waste, and correspondingly formulated the five measures. Mobilize the whole plant technicians from all levels