合金铸钢履带板感应淬火裂纹缺陷分析与改善措施  

Analysis and Improvement Measures of Induction Quenching Crack Defect in Cast Steel Crawler Plate

作　　者：周璐 杜波 代保华 ZHOU Lu;DU Bo;DAI Bao-hua(China Machinery Industrial Products Co.,Ltd.,Beijing 100055,China)

机构地区：[1]中设集团装备制造有限责任公司,北京100055

出　　处：《铸造设备与工艺》2021年第2期23-25,30,共4页Foundry Equipment & Technology

摘　　要：对矿用液压挖掘机合金铸钢履带板感应淬火后裂纹缺陷产生原因进行了分析,并对补焊方法修复缺陷的可行性进行了分析与试验验证。通过销孔内贴5 mm余量和加大销耳上方冒口改进铸造工艺,提高了产品致密度,使感应淬火通过率达到了98.5%.The feasibility of repairing the crack of alloy cast steel crawler plate after induction quenching in mine hydraulic excavator by repair welding method is analyzed and tested.The casting process was improved by pasting 5 mm allowance in the pin hole and increasing the riser above the pin ear to increase the product density,and the passing rate of induction quenching reached 98.5%.

关 键 词：铸钢件 感应淬火 补焊 工艺改进 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG156.3[金属学及工艺—金属材料]