发明名称 |
HOT PRESS MOLDING METHOD, ARTICLE MOLDED BY HOT PRESS MOLDING, AND MOLD FOR HOT PRESSING |
摘要 |
In a hot press molding method for press-molding a heated material and cooling the material while holding the material in a mold, during press molding of the material, shape changes including a portion that curves with respect to a longitudinal direction of the material are molded at longitudinal opposite end portions of the material and resistance to thermal contraction force of the material in the longitudinal direction during cooling is imparted. In one embodiment of the present invention, the shape changes molded on the material during the press molding are minute protrusions provided on surfaces of the longitudinal opposite end portions of the material. The invention makes it possible to suppress thermal contraction of the material during cooling in hot press molding to thereby prevent defects associated therewith. |
申请公布号 |
US2014302341(A1) |
申请公布日期 |
2014.10.09 |
申请号 |
US201114353624 |
申请日期 |
2011.12.26 |
申请人 |
Egawa Tetsuji;Suzuki Takanobu;Kimura Hidetoshi;Ikezawa Hideaki;Kato Kenji;Furuhashi Masaki |
发明人 |
Egawa Tetsuji;Suzuki Takanobu;Kimura Hidetoshi;Ikezawa Hideaki;Kato Kenji;Furuhashi Masaki |
分类号 |
B21J5/02 |
主分类号 |
B21J5/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. A hot press molding method for press-molding a heated material and cooling the material while holding the material in a mold,
wherein, during press molding of the material, shape changes including a portion that curves with respect to a longitudinal direction of the material are molded at longitudinal opposite end portions of the material and resistance to thermal contraction force of the material in the longitudinal direction during cooling is imparted. |
地址 |
Okazaki-shi JP |