JPS57159215A - Inserting method of lubricant in pipe manufacturing by hot extrusion - Google Patents
Inserting method of lubricant in pipe manufacturing by hot extrusionInfo
- Publication number
- JPS57159215A JPS57159215A JP4377581A JP4377581A JPS57159215A JP S57159215 A JPS57159215 A JP S57159215A JP 4377581 A JP4377581 A JP 4377581A JP 4377581 A JP4377581 A JP 4377581A JP S57159215 A JPS57159215 A JP S57159215A
- Authority
- JP
- Japan
- Prior art keywords
- billet
- lubricant
- pipe
- puddle
- hot extrusion
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
PURPOSE:To prevent an extruding pipe from the generation of wall thickness deviation due to the formation of a lubricant puddle, by making an inserting quantity of glass lubricant to the bottom side of a billet smaller than that to the top side of the billet, in manufacturing a pipe from a metallic billet by hot extrusion. CONSTITUTION:A billet 3 in a container 2 is extruded into a pipe, as an extruded pipe 10, through a die 1 by a dummy block 5 aided with a stem 4 by utilizing a mandrel 6. In this case, an internally lubricating glass lubricant 9, to be inserted into an internal hole of the billet 3 previously, is controlled in quantity so as to make its quantity to be inserted to the bottom side of the billet 3 smaller than that to be inserted to the top side by using a spoon having a special internal shape, thereby preventing the formation of a puddle 9a of the glass lubricant in said hole. Thus, the generation of the wall thickness deviation (t1-t2) of the extruded pipe 10 due to the puddle 9a of the lubricant is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4377581A JPS57159215A (en) | 1981-03-25 | 1981-03-25 | Inserting method of lubricant in pipe manufacturing by hot extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4377581A JPS57159215A (en) | 1981-03-25 | 1981-03-25 | Inserting method of lubricant in pipe manufacturing by hot extrusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57159215A true JPS57159215A (en) | 1982-10-01 |
Family
ID=12673122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4377581A Pending JPS57159215A (en) | 1981-03-25 | 1981-03-25 | Inserting method of lubricant in pipe manufacturing by hot extrusion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57159215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798791A (en) * | 2022-04-12 | 2022-07-29 | 北京魏桥国科新能源技术研究院有限公司 | Metal matrix composite hot extrusion lubricant replacing device and method |
-
1981
- 1981-03-25 JP JP4377581A patent/JPS57159215A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798791A (en) * | 2022-04-12 | 2022-07-29 | 北京魏桥国科新能源技术研究院有限公司 | Metal matrix composite hot extrusion lubricant replacing device and method |
| CN114798791B (en) * | 2022-04-12 | 2023-12-01 | 北京魏桥国科新能源技术研究院有限公司 | Device and method for replacing metal matrix composite hot extrusion lubricant |
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