大平面注塑机模板球墨铸铁件的铸造工艺设计  

Design of the Casting Process for the Nodular Iron Parts of the Large Plane Injection Molding Machine

作　　者：项铮宇 张亚敏 周宁 李继强[2] 吴超 宋贤发 XIANG Zheng-yu;ZHANG Ya-min;ZHOU Ning;LI Ji-qiang;WU Chao;SONG Xian-fa(Ningbo Tuotie Machinery Co.,Ltd.,Ningbo 315100,China;Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China)

机构地区：[1]宁波拓铁机械有限公司,浙江宁波315100 [2]浙江大学宁波理工学院,浙江宁波315100

出　　处：《现代铸铁》2020年第3期46-48,共3页Modern Cast Iron

基　　金：2018年度宁波市智团创业计划项目(201805A021)。

摘　　要：介绍了MA型大平面注塑机模板铸件的结构及技术要求,从模具设计、浇注系统设计、铁液成分控制、球化处理、孕育处理等多方面出发,设计了大平面注塑机模板铸件的生产工艺,并且在操作过程中对每一道工序进行严格控制,成功生产出了合格的铸件。经检测,附铸试块的球化率达到95%,石墨大小达到6级,抗拉强度410 MPa,屈服强度285 MPa,伸长率13.5%,硬度165 HB,均满足技术要求,铸件依据EN 12680-3和EN 1369标准进行100%超声波探伤及磁粉探伤,铸件质量完全满足铸件验收规范。The structure and technical requirements of the MA type large plane injection molding machine casting were introduced.From the aspects of mold design,pouring system design,molten iron composition control,spheroidizing treatment,inoculation treatment,the large plane injection molding machine template casting was designed.Each process in the operation was under strict control and the qualified castings were successfully produced.After testing,the spheroidization rate of the attached test block reached 95%and graphite size reached grade 6.The tensile strength was 410 MPa and the yield strength was 285 MPa.The elongation rate was 13.5%,and the hardness was 165 HB.All of them met the technical requirements.Ultrasonic inspection and magnetic particle inspection tests were proformed on every production by EN 12680-3 and EN 1369 standards.The quality of castings fully met the casting acceptance standards.

关 键 词：球墨铸铁 大平面模板 铸造工艺 力学性能 

分 类 号：TG255[金属学及工艺—铸造]