高强度全断面D型石墨灰铸铁型材  

High Strength Gray Cast Iron Bars with Type D Graphite

作　　者：徐春杰[1] 牛宏建[1] 张兆云[1] 张云鹏[1] 朱锦侠[1] 甘雨[1] 

机构地区：[1]西安理工大学材料科学与工程学院,陕西西安710048

出　　处：《铸造技术》2004年第5期323-324,327,共3页Foundry Technology

摘　　要：通过工艺措施及合金化的配合 ,获得不同直径的灰铸铁型材 ,无白口、全断面D型石墨、断面硬度差≤ 10HRB、抗拉强度σb≥ 3 0 0MPa。试验获得的D型石墨灰铸铁型材比普通LZHT3 0 0铸铁型材具有更好的断面齐一性和综合力学性能。Sound gray cast iron bars with D type graphite and high ultimate tensile strength (above 300 MPa) were prepared by continous casting process. The hardness along the cross section is uniform. The difference of the hardness is less than 10 HRB along each of the cross sections. No carbide was detected for all of the bars in different diameters.

关 键 词：铸铁水平连铸 D型石墨 综合力学性能 

分 类 号：TG143[一般工业技术—材料科学与工程]