摘要
为了解决异形喷口压制过程中毛坯开裂的问题,本研究自主设计了一种近净成形异形喷口压制模具,并对模具的结构进行了逐步的优化,同时基于已有的压制工艺对压制压力、压制速度、保压时间等工艺参数进行了优化。结果表明:通过对异形压制模具结构的逐步优化,喷口圆弧过渡区域和V型垫块底部的开裂问题得到解决。通过对压制工艺的优化,喷口毛坯各位置密度一致性得到了提升,圆弧过渡区域的力学性能、电气性能与两端基本无差别,且采用本工艺压制的喷口原材料损耗降低了约30%。
In order to solve the problem of blank cracking in the pressing process of special-shaped nozzle,we designed a near-clean forming special-shaped nozzle pressing mold independently,and optimized the structure of the mold gradually.At the same time,the process parameters such as pressing pressure,pressing speed,and holding time were optimized based on the existing pressing process.The results show that,through the gradual optimization of the structure of the special-shaped pressing mold,the cracking problems of the arc transition area and the bottom of the V-shaped pad of the nozzle were solved.Through the optimization of the pressing process,the density consistency of each position of the nozzle blank is improved,the mechanical and electrical properties of the arc transition area have little difference with those of the two ends,and the raw material loss of the nozzle pressed by this process is reduced by about 30%.
作者
刘雅娟
赵晔
侯亚峰
侯国良
舒明泽
许东杰
王亚祥
陈蕊
LIU Yajuan;ZHAO Ye;HOU Yafeng;HOU Guoliang;SHU Mingze;XU Dongjie;WANG Yaxiang;CHEN Rui(Henan Pinggao Electric Co.,Ltd.,Pingdingshan 467001,China;Pinggao Group Co.,Ltd.,Pingdingshan 467001,China;Northwestern Polytechnical University,Xi'an 710072,China)
出处
《绝缘材料》
CAS
北大核心
2024年第6期49-53,共5页
Insulating Materials
关键词
灭弧喷口
聚四氟乙烯
异形模具
压制试验
arc-extinguishing nozzle
PTFE
special-shaped structure mold
pressing test
