JPS57106425A - Method for pretreating billet for extrusion in extruding facility - Google Patents
Method for pretreating billet for extrusion in extruding facilityInfo
- Publication number
- JPS57106425A JPS57106425A JP18304180A JP18304180A JPS57106425A JP S57106425 A JPS57106425 A JP S57106425A JP 18304180 A JP18304180 A JP 18304180A JP 18304180 A JP18304180 A JP 18304180A JP S57106425 A JPS57106425 A JP S57106425A
- Authority
- JP
- Japan
- Prior art keywords
- billet
- extrusion
- scalping
- treatment
- temperature
- 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.)
- Granted
Links
Landscapes
- Extrusion Of Metal (AREA)
Abstract
PURPOSE: To prevent buckling of billets in the course of scalping and to improve qualities of extrusion products, by performing scalping treatment on hot billets at a relatively low temperature before they are extruded.
CONSTITUTION: Billets are put into the primary heating equipment 7 and they are heated to a temperature which is suitable to the scalping treatment and which is lower than the extrusion temperature. Then, the hot billet is fed into a scalper 9 with carrying devices 11 and 12, and a scalping treatment is performed on the shell along the axial direction of the billet with a die 9A by advancing a pressure stem 9B. Since the treatment temperature is low, the billet B will not buckle into a barrel-shape B2. After the scalping treatment, the billet is put into the secondary heating device 8 and it is uniformly heated again for the total length, and then, the billet is sent to an extruding press 1 for extrusion. In this way, a uniform temperature distribution is achieved throughout the billet, and extrusion products having an excellent quality can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18304180A JPS57106425A (en) | 1980-12-22 | 1980-12-22 | Method for pretreating billet for extrusion in extruding facility |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18304180A JPS57106425A (en) | 1980-12-22 | 1980-12-22 | Method for pretreating billet for extrusion in extruding facility |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57106425A true JPS57106425A (en) | 1982-07-02 |
JPS6144562B2 JPS6144562B2 (en) | 1986-10-03 |
Family
ID=16128697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18304180A Granted JPS57106425A (en) | 1980-12-22 | 1980-12-22 | Method for pretreating billet for extrusion in extruding facility |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57106425A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4996995A (en) * | 1988-06-27 | 1991-03-05 | Kobishi Electric Co., Ltd. | Ashtray |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010263A (en) * | 1973-05-31 | 1975-02-01 | ||
JPS5333930A (en) * | 1976-09-10 | 1978-03-30 | Fuji Electric Co Ltd | Control method and device for pouring in pressure type automatic pouring furnace |
-
1980
- 1980-12-22 JP JP18304180A patent/JPS57106425A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010263A (en) * | 1973-05-31 | 1975-02-01 | ||
JPS5333930A (en) * | 1976-09-10 | 1978-03-30 | Fuji Electric Co Ltd | Control method and device for pouring in pressure type automatic pouring furnace |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4996995A (en) * | 1988-06-27 | 1991-03-05 | Kobishi Electric Co., Ltd. | Ashtray |
Also Published As
Publication number | Publication date |
---|---|
JPS6144562B2 (en) | 1986-10-03 |
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