导板是不锈钢管轧机中的关键易损零件 ,在 110 0℃～ 12 0 0℃温度下长期受钢坯的冲击、摩擦、挤压和冷却水周期性激冷。为了取代其昂贵的高温合金材质 ,研制了一种与RTCr - 34相仿 ,加入Ni、Ti、Re和Al的高铬铸铁 ,并通过适宜的热处理工艺提高其综合性能。试验证明 ,这种高铬铸铁具有良好的高温抗磨性、足够的强韧性和一定的机械加工性 ,而且成本较低 ,熔制较易 The guide plate is the key wearing part of the stainless steel tube rolling mill. It is subjected to long-term impact, friction, extrusion and cooling water chilling periodically at a temperature of 110 0-1200 ° C. In order to replace its expensive superalloy, a high chromium cast iron similar to RTCr - 34 with addition of Ni, Ti, Re and Al was developed and its overall performance was improved by a suitable heat treatment process. Test proved that this high-chromium cast iron with good high temperature abrasion resistance, sufficient strength and toughness and a certain degree of machinability, and lower cost, easy to melt