答:目前冷轧板产品中高级轿车板、镀锡板、家电、仪表用板等高表面质量要求的产品所占的比例不断增加,因此要求冷轧工作辊必须拥有更高耐磨性、粗糙度保持能力。为适应这样的要求,轧辊生产厂家开发研制了高耐磨型冷轧工作辊,通常对常规冷轧工作辊材料中碳、铬含量的调整并提高钼、钒、钨等强碳化物形成元素含量,改变组织中合金 A: At present, the proportion of products with high surface quality such as sedan plates, tin plates, household appliances and instrumentation panels in cold-rolled sheet products continues to increase. Therefore, it is required that the cold-rolled work rolls must have higher wear resistance, rough Maintain ability In order to meet such a requirement, the roll manufacturer has developed a high-wear-resistant cold-rolled work roll, usually adjusting the carbon and chromium contents in conventional cold-rolled work roll materials and increasing the content of strong carbide forming elements such as molybdenum, vanadium and tungsten , Change the alloy in the organization