发明名称 |
METHOD FOR PRODUCING WATER JACKET SPACER |
摘要 |
A spacer (1) is injection molded by using an injection molding die having resin flow channels that are designed such that a plurality of gates (6) are arranged along the longitudinal direction at a position corresponding to the outer peripheral surface of a side wall part (4) in which a plurality of arc-like peripheral surface parts (2) are connected through a waist part (3). After opening the mold and ejecting the spacer, the spacer is cooled with a runner (7) being connected to the gate (6), and thereafter, the runner (7) is cut off. As a result, when producing a water jacket spacer that is assembled to the inside of the water jacket and controls the flow of cooling water by injection molding, while producing with a high productivity without being affected by design constraints caused by draft angle, deformation in the post-molding cooling step is prevented. |
申请公布号 |
US2017043513(A1) |
申请公布日期 |
2017.02.16 |
申请号 |
US201515307156 |
申请日期 |
2015.04.28 |
申请人 |
NICHIAS CORPORATION |
发明人 |
Fujita Yoshifumi;Uchida Shota;Nakamura Kenichi |
分类号 |
B29C45/00;B29C45/72;B29C45/27 |
主分类号 |
B29C45/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for producing a water jacket spacer that is assembled into the inside of a water jacket provided in a water-cooled internal combustion engine in order to control the flow of cooling water, wherein
the water jacket spacer has a side wall part in which a plurality of arc-like peripheral surface parts are connected through a waist part; a prescribed resin material is injection molded by using a molding die for injection molding in which resin flow channels are designed so that a plurality of gates are arranged along the longitudinal direction at a position corresponding to the outer peripheral surface of the side wall part; and after mold opening and ejecting, cooling is done while leaving a runner being connected to the gates, and thereafter, the runner is cut off. |
地址 |
Tokyo JP |