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为了提高热轧薄板荒轧机架轧辊的使用寿命,我们进行了轧辊的材质和铸造工艺的试验研究,获得了良好的效果。经过几年来轧钢生产证明,轧辊的使用寿命显著提高,平均使用次数提高了1.42倍,平均轧钢时间延长了2.28倍,钢板的轧出量提高了2.2倍。一、试验过程荒轧机架的上下辊规格为φ805×1200毫米,原来使用的是普通复合球墨铸铁轧辊,其化学成分是(％):C3.1～3.4、Si0.5～0.7、Mn0.6～0.9、P0.3～0.4、S≤0.01、Mg0.04～
In order to improve the service life of hot rolling thin plate mill roll stand, we conducted the roll of the material and the casting process of experimental study, and achieved good results. After several years of rolling steel production proved that the life of the roll significantly increased, the average number of times increased by 1.42 times, the average rolling time 2.28 times longer, the amount of rolled steel increased 2.2 times. First, the test process Scraper rack up and down roller size φ805 × 1200 mm, the original use of ordinary composite ductile iron roll, the chemical composition is (%): C3.1 ~ 3.4, Si0.5 ~ 0.7, Mn0.6 ~ 0.9, P0.3 ~ 0.4, S≤0.01, Mg0.04 ~