Title:
マルチレイヤ充填材を含む中空製品製造用コアおよびコアを用いた中空製品の製造方法
Document Type and Number:
Japanese Patent JP7064555
Kind Code:
B2
Abstract:
The present invention relates to a core for hollow product manufacture including a multilayer filling material, which may be used in forming a cooling water circulation channel through which a fluid such as cooling water may pass, and a method of manufacturing a hollow product using the core, and the core includes a pipe, having a hollow formed in the pipe and an opening formed at both ends of the pipe so that the hollow is exposed to the outside through the opening, a first support member, being disposed inside the hollow and having a space formed in the first support member, a second support member, being disposed in the space, andameltingbar, passing through the second support member in a longitudinal direction of the melting bar, wherein the melting bar melts and forms a space in the second support member when the melting bar is heated.
Inventors:
Yu, Jin-ho
Application Number:
JP2020191473A
Publication Date:
May 10, 2022
Filing Date:
November 18, 2020
Export Citation:
Assignee:
MH Technologies Incorporated
International Classes:
B22D19/00; B22C9/10; B22D29/00
Domestic Patent References:
| JP2005111553A |
Foreign References:
| KR1020170118309A | ||||
| KR1020170128817A |
Attorney, Agent or Firm:
Takashima Hajime
Mitsuyoshi Kamada
Kyoko Doi
Yaeko Tamura
Hirofumi Taima
Atsuko Akai
Tomiya Tosaki
Dai Kitawaki
Mitsuyoshi Kamada
Kyoko Doi
Yaeko Tamura
Hirofumi Taima
Atsuko Akai
Tomiya Tosaki
Dai Kitawaki