JPS643078A - Production of sintered material having inner space - Google Patents
Production of sintered material having inner spaceInfo
- Publication number
- JPS643078A JPS643078A JP62156886A JP15688687A JPS643078A JP S643078 A JPS643078 A JP S643078A JP 62156886 A JP62156886 A JP 62156886A JP 15688687 A JP15688687 A JP 15688687A JP S643078 A JPS643078 A JP S643078A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- forming
- forming mold
- removal
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To produce a sintered material having desired space in the interior, by setting a removal mold for forming inner space in a forming mold, pouring sintering powder slurry to the forming mold, discharging liquid from the slurry and taking away the removal mold from the forming mold by melting.
CONSTITUTION: Linear slits 15 and 16 having slit width S in 10μ≤S≤3d when average particle diameter of sintering powder is d is made in a forming mold 11. A removal mold 18 for forming inner space consisting of a main body 18a of a removal mold of high polymer material and a thin film b for preventing permeation, consisting of a metallic plating is set in the forming mold 11. Then slurry consisting of the sintering powder, an organic binder having a higher melting point than that of the high polymer material and an organic solvent is packed into the forming mold 11. In this state, the slurry is pressurized by a plunger 14 and a liquid component is discharged from the slits 15 and 16 to mold a powder molded article. The molded article is taken out from the forming mold 11, the main body 18a of the removal mold is melted and removed by heating to give a hollow molded article, which is sintered. Consequently, a molded article having inner space and uniform density is readily obtained.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62156886A JPS643078A (en) | 1987-06-24 | 1987-06-24 | Production of sintered material having inner space |
US07/760,480 US5306719A (en) | 1986-07-31 | 1991-09-16 | Carbostyril derivatives and salts thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62156886A JPS643078A (en) | 1987-06-24 | 1987-06-24 | Production of sintered material having inner space |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH013078A JPH013078A (en) | 1989-01-06 |
JPS643078A true JPS643078A (en) | 1989-01-06 |
Family
ID=15637541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62156886A Pending JPS643078A (en) | 1986-07-31 | 1987-06-24 | Production of sintered material having inner space |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643078A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100475352B1 (en) * | 2001-11-21 | 2005-03-10 | 배순순 | Method of a waterway |
-
1987
- 1987-06-24 JP JP62156886A patent/JPS643078A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100475352B1 (en) * | 2001-11-21 | 2005-03-10 | 배순순 | Method of a waterway |
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