炉料配比对灰铸铁组织和力学性能的影响  

Effect of Furnace Charge Ratio on Microstructure and Mechanical Properties of Gray Cast Iron

作　　者：李瑞丰 杜明明 张玉娟 林献辉 张士强 王清军 LI Rui-feng;DU Ming-ming;ZHANG Yu-juan;LIN Xian-hui;ZHANG Shi-qiang;WANG Qing-jun(Weichai(Anqiu)Material Forming Co.,Ltd.,Weifang Shandong 261061,China)

机构地区：[1]潍柴(安丘)材料成型有限公司,山东潍坊261061

出　　处：《铸造设备与工艺》2024年第6期57-59,75,共4页Foundry Equipment & Technology

摘　　要：介绍了炉料配比对X型气缸盖铸件显微组织和力学性能的影响。结果表明,提高回炉料比例和加入起熔块可以增加铸件石墨长度,降低铸件本体抗拉强度;加入生铁,增加铸件铁素体含量,使石墨粗大,降低铸件的本体抗拉强度和硬度;使用高温搅拌工艺可以加快生铁中的初生石墨熔化速度,减少生铁中粗大石墨遗传性的影响。The effect of charge ratio on the microstructure and mechanical properties of X-type cylinder head castings is introduced.The results show that the graphite length of castings can be increased and the tensile strength of castings can be reduced by increasing the ratio of recharging charge and adding frit.Add pig iron,increase the ferrite content of casting,make the graphite coarse,reduce the tensile strength and hardness of casting;The use of high temperature stirring process can speed up the melting speed of primary graphite in pig iron and reduce the influence of coarse graphite heredity in pig iron.

关 键 词：炉料配比 X型气缸盖 显微组织 力学性能 

分 类 号：TG243[金属学及工艺—铸造]