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双耳管接头本体圆头砂芯工艺优化设计
Round Head Sand Core for Binaural Tube Joint
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- DOI:
- 作者:
- 王爱铭
WANG Aiming
- 作者单位:
- 中铁建电气化局集团轨道交通器材有限公司
China Railway Construction and Electrification Bureau Group Rail Transit Equipment Co.,Ltd.,Changzhou 213719,China
- 关键词:
- 接触网 双耳管接头本体 砂芯 铸造工艺
catenary binaural tube connector body sand core casting process
- 摘要:
- 双耳管接头本体圆头砂芯在金属液的冲刷下,易出现失稳现象,铸造毛坯达不到既定技术指标,影响双耳管接头本体的安装精度。对双耳管接头本体圆头砂芯芯头及模具芯座工艺进行了设计及优化,确定了芯头的尺寸与承压面积。结果显示,芯头和芯座工艺改进后,砂芯抵抗力增强,失稳现象消除,材料利用率达到95%以上。The round head sand core of the binaural joint body was prone to instability under the erosion of molten metal,and the casting blank cannot meet the established technical indicators,which affects the installation accuracy of the binaural joint body.The binaural tube joint round head sand core head and mold core seat process had been designed and optimized,and the size and pressure bearing area of the core head had been determined.The results show that after the core head and core seat process is improved,the sand core resists strength is enhanced,instability is eliminated,and the material utilization rate reaches more than 95%.