Title:
HOT-PRESSING DEVICE, PRODUCTION METHOD FOR HOT-PRESSED MOLDED ARTICLE, AND HOT-PRESSED MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2023/229025
Kind Code:
A1
Abstract:
Provided is a hot-pressing device (1000) that comprises a punch (1200), a die (1300), and a die pad (1100) and is characterized in that there is a groove (1220) in a top surface (1210) of the punch (1200), the angle formed between a wall surface of the groove (1220) and the pressing direction (P) in a cross-section taken along the pressing direction (P) being 2°–8°, there is a refrigerant channel inside the punch (1200), the die (1300) and the die pad (1100) are arranged so as to face the punch (1200) in the pressing direction (P), the die pad (1100) facing the top surface (1210) of the punch (1200), and there is a protrusion (1120) on the die pad (1100) at a position that is opposite the groove (1220) in the pressing direction (P), the protrusion (1120) having the inverse shape of the groove (1220).
Inventors:
SAITO MASAHIRO (JP)
ITO YASUHIRO (JP)
TANOUE HIROYUKI (JP)
SUZUKI JUNICHIRO (JP)
YUASA SUSUMU (JP)
YOSHIDA HIROSHI (JP)
ITO YASUHIRO (JP)
TANOUE HIROYUKI (JP)
SUZUKI JUNICHIRO (JP)
YUASA SUSUMU (JP)
YOSHIDA HIROSHI (JP)
Application Number:
PCT/JP2023/019628
Publication Date:
November 30, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21D22/20; B21D22/26; B21D24/00
Domestic Patent References:
| WO2021215391A1 | 2021-10-28 | |||
| WO2020111061A1 | 2020-06-04 |
Foreign References:
| JPS5956927A | 1984-04-02 | |||
| JP6985989B2 | 2021-12-22 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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