JPS55128314A - Biller for hot extrusion - Google Patents
Biller for hot extrusionInfo
- Publication number
- JPS55128314A JPS55128314A JP3521579A JP3521579A JPS55128314A JP S55128314 A JPS55128314 A JP S55128314A JP 3521579 A JP3521579 A JP 3521579A JP 3521579 A JP3521579 A JP 3521579A JP S55128314 A JPS55128314 A JP S55128314A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- small
- billet
- end part
- leading end
- 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
- Extrusion Of Metal (AREA)
Abstract
PURPOSE: The billet which is made difficult to cause thickness deviation by forming a small-diameter part of a slightly smaller diameter over the wide range of the intermediate of the billet in its axial direction and limitng the contact surface of the billet with the container inside surface to the small segment between the leading end part and trailing end part.
CONSTITUTION: A billet 1 assumes nearly a cylindrical shape and is made into a cylindrical shape having a small-diameter part 2 of an equal diameter made slightly smaller than the outside diameter of the both end parts over the wide range of the intermediate part of its axial direction. It is desirable that the difference in the outside diameter between said small-diameter part and the leading end part 3 and trailing end part 4 is made, e.g., 0.2W1mm. It is also desirable that the portions near the boundaries between the small-diameter part 2 and the leading end 3 and trailing end part 4 are connected gently by tapers or the like. As a result of this, the foregoing small-diameter part 2 has no contact with the container inside surface just before extrusion, at the time of making pipe, hence the one-side cooling at this segment is prevented and the thickness deviation of the product are reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3521579A JPS55128314A (en) | 1979-03-26 | 1979-03-26 | Biller for hot extrusion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3521579A JPS55128314A (en) | 1979-03-26 | 1979-03-26 | Biller for hot extrusion |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55128314A true JPS55128314A (en) | 1980-10-04 |
Family
ID=12435614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3521579A Pending JPS55128314A (en) | 1979-03-26 | 1979-03-26 | Biller for hot extrusion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55128314A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5181771A (en) * | 1975-01-14 | 1976-07-17 | Kobe Steel Ltd | KINZOKUNOOSHIDASHIHOHO |
JPS5252855A (en) * | 1975-10-28 | 1977-04-28 | Nippon Kokan Kk | Hot extrusion of metals with high deformation resistance |
JPS5361548A (en) * | 1976-11-11 | 1978-06-02 | Alusuisse | Press processing apparatus for making engineering work from block |
-
1979
- 1979-03-26 JP JP3521579A patent/JPS55128314A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5181771A (en) * | 1975-01-14 | 1976-07-17 | Kobe Steel Ltd | KINZOKUNOOSHIDASHIHOHO |
JPS5252855A (en) * | 1975-10-28 | 1977-04-28 | Nippon Kokan Kk | Hot extrusion of metals with high deformation resistance |
JPS5361548A (en) * | 1976-11-11 | 1978-06-02 | Alusuisse | Press processing apparatus for making engineering work from block |
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