Title:
POWDER MOLDING METAL MOLD AND METHOD FOR MANUFACTURING POWDER COMPACTED MOLDING
Document Type and Number:
WIPO Patent Application WO/2017/033891
Kind Code:
A1
Abstract:
A powder molding metal mold which is provided with a die and an upper punch and a lower punch embedded in the die, and which is for manufacturing a powder compacted molding by compressing powder between the upper punch and the lower punch, wherein, of the members constituting the powder molding metal mold, at least one of two members that slide on each other is internally provided with an exhaust channel for exhausting gas from a filled space, enclosed by the die and the lower punch for the powder, to the outside of the powder molding metal mold, wherein the exhaust channel is formed between the two members and includes a gas intake opening opened onto a clearance portion connected to the filled space.
Inventors:
TSURUTA HIJIRI (JP)
UENO TOMOYUKI (JP)
SHIMAUCHI KAZUNARI (JP)
UENO TOMOYUKI (JP)
SHIMAUCHI KAZUNARI (JP)
Application Number:
PCT/JP2016/074387
Publication Date:
March 02, 2017
Filing Date:
August 22, 2016
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
International Classes:
B30B11/02; B30B11/00
Foreign References:
| JPS629798A | 1987-01-17 | |||
| JPH07232297A | 1995-09-05 | |||
| JPH10118797A | 1998-05-12 | |||
| JP2009082957A | 2009-04-23 |
Other References:
See also references of EP 3342586A4
Attorney, Agent or Firm:
YAMANO, Hiroshi (JP)
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