JPS55119103A - Graphite die for hot press - Google Patents
Graphite die for hot pressInfo
- Publication number
- JPS55119103A JPS55119103A JP2481679A JP2481679A JPS55119103A JP S55119103 A JPS55119103 A JP S55119103A JP 2481679 A JP2481679 A JP 2481679A JP 2481679 A JP2481679 A JP 2481679A JP S55119103 A JPS55119103 A JP S55119103A
- Authority
- JP
- Japan
- Prior art keywords
- graphite
- pin
- product
- die
- hole
- 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 facilitate taking out of products from the titled die and enable the repeated use of graphite pin by a method wherein graphite pin to penetrate through hole is made of a nature possessing heat expansion coefficient higher than the processed product.
CONSTITUTION: Lower punch 2 having hole portion 3 being penetrated through is inserted within the outer die 1, and pin 4 having heat expansion coefficient higher than that of the product to be processed, for example, made of metal graphite material, is installed. Upper punch 6, having hole and filled with blank material 5 therearound, is inserted through the pinch 4, and the upper punch 6 is pressured while the blank material 5 is compressed, and sintered. At this operation, the lower die 1, upper and lower punch 6, 2 are formed by graphite, as is practiced in the conventional manner. The material 5 is sintered under high temperature, cooled and the processed product is taken out. At this time, because the pin is already separated from the inner wall of the hole portion 3, taking out the product is easy.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2481679A JPS55119103A (en) | 1979-03-02 | 1979-03-02 | Graphite die for hot press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2481679A JPS55119103A (en) | 1979-03-02 | 1979-03-02 | Graphite die for hot press |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55119103A true JPS55119103A (en) | 1980-09-12 |
Family
ID=12148705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2481679A Pending JPS55119103A (en) | 1979-03-02 | 1979-03-02 | Graphite die for hot press |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55119103A (en) |
-
1979
- 1979-03-02 JP JP2481679A patent/JPS55119103A/en active Pending
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