发明名称 |
Injection molding method and injection molding apparatus |
摘要 |
The present invention provides an injection molding method which intends to lower a mold clamping force in view of both of a projected area of a molded article and an injection pressure, and contributes to an energy saving and a reduction in a cost of equipment and a manufacturing cost. In a cavity ( 13 ) formed in a metal mold ( 5 ) for an injection molding, there are arranged a first gate ( 21 ) injecting a first molten resin ( 101 ) anteceding in one end side (a charging start side) in a longitudinal direction, and a second gate ( 22 ) injecting a second molten resin ( 102 ) following in another end side (a charging finish side). The second molten resin ( 102 ) is newly injected from the second gate ( 22 ) before a fluid head portion of the first molten resin ( 101 ) injected from the first gate ( 21 ) reaches a position of the second gate ( 22 ). Further, the first molten resin ( 101 ) becomes in an approximately cooled and solidified state by the time when the second molten resin ( 102 ) reaches a terminal end in the charging finish side within the cavity ( 13 ).
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申请公布号 |
US2006141088(A1) |
申请公布日期 |
2006.06.29 |
申请号 |
US20060353425 |
申请日期 |
2006.02.14 |
申请人 |
DAIWA KASEI INDUSTRY CO., LTD. |
发明人 |
SAEKI TOSHI;SUZUKI MAKOTO;ISOGAI KATSUMASA;HANAI KAZUHIRO;HAZAMA SYUUICHI |
分类号 |
B29C45/13;B29C45/28;B29C45/00;B29C45/07;B29C45/17 |
主分类号 |
B29C45/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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