630轧机的断辊是全国比较普遍存在的一个问题。本文在630轧机力能参数实际测定的基础上,对合理分配轧制力、改革孔型、改革轧制工艺、提高轧辊强度等方面作一详细分析,采取减小第5孔压下量、适当增加第3孔压下量和改进轧制图表等措施。上海新沪钢铁厂按新孔型和新轧制图表进行生产,五个多月的实践中,尚未发生断辊。 630 rolling mill roller is more common in the country a problem. Based on the actual measurement of energy parameters of 630 rolling mills, this paper makes a detailed analysis on the reasonable distribution of rolling force, reforming the hole type, reforming the rolling technology and increasing the strength of the roller. The reduction of the fifth hole reduction, Increase the reduction of the third hole and improve the rolling charts and other measures. Shanghai New Shanghai Iron and Steel plant according to the new hole-type and new rolling charts for production, more than five months of practice, there has been no broken roller.