发明授权
US4666396A Thermally insulated heated sprue bushing in plastic molding apparatus
失效
塑料成型设备中的绝热加热浇道套管
- 专利标题: Thermally insulated heated sprue bushing in plastic molding apparatus
- 专利标题(中): 塑料成型设备中的绝热加热浇道套管
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申请号: US817145申请日: 1986-01-08
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公开(公告)号: US4666396A公开(公告)日: 1987-05-19
- 发明人: Richard J. Shaw
- 申请人: Richard J. Shaw
- 专利权人: Shaw Richard J
- 当前专利权人: Shaw Richard J
- 主分类号: B29C45/27
- IPC分类号: B29C45/27 ; B29C45/74
摘要:
This invention is to disclose an insulated heated sprue bushing in plastic molding apparatus, and comprises a plastic molded segment as a thermal barrier to insulate or break the heat flow between the sprue bushing shoulder and neck section of the stem of the sprue bushing, and a heater band placed on the head of the sprue bushing.
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