| 摘要 |
离心铸造高硼高速钢复合轧辊及其制备方法，属于复合铸造技术领域。复合轧辊的辊身外层采用高硼高速钢，辊芯内层采用球墨铸铁，中间过渡层采用高强度低硅铸铁。外层化学成分及质量分数：0.65～0.95％C,1.5～1.8％B,3.0～3.5％Mo,1.2～1.5％W,1.0～1.2％V,6.0～6.5％Cr,1.5～1.8％Al,0.04～0.08％Y,0.04～0.08％Mg,0.12～0.25％Nb,0.08～0.15％N,0.05～0.12％Na,0.5～1.5％Si,Mn<0.8％,S<0.04％,P<0.04％,余量Fe。复合轧辊经淬火和回火处理后，具有良好的力学性能和优异的耐磨性。 |
| 主权项 |
离心铸造高硼高速钢复合轧辊，其特征在于，复合轧辊的辊身外层采用高硼高速钢，辊芯内层采用球墨铸铁，中间过渡层采用高强度低硅铸铁；外层高硼高速钢的化学成分及质量分数为：0.65～0.95％C,1.5～1.8％B,3.0～3.5％Mo,1.2～1.5％W,1.0～1.2％V,6.0～6.5％Cr,1.5～1.8％Al,0.04～0.08％Y,0.04～0.08％Mg,0.12～0.25％Nb,0.08～0.15％N,0.05～0.12％Na,0.5～1.5％Si,Mn<0.8％,S<0.04％,P<0.04％,余量Fe；内层球墨铸铁的化学成分及质量分数为：3.1～3.4％C,1.8～2.2％Si,0.4～0.6％Mn,0.3～0.4％Ni,0.05～0.20％Cr,0.15～0.25％Mo,0.04～0.06％Mg,0.02～0.05％Ce,0.01～0.03％Sb,0.03～0.05％Ca,0.03～0.05％Ba,P<0.08％,S<0.03％,余量Fe；中间过渡层高强度低硅铸铁的化学成分及质量分数为：3.1～3.4％C,0.8～1.1％Si,0.3～0.5％Mn,0.1～0.2％Mo,0.10～0.15％V,0.02～0.05％N,P<0.08％,S<0.03％,0.03～0.06％Y,余量Fe。 |
