JPS574310A - Method and apparatus for rolling metallic pipe - Google Patents
Method and apparatus for rolling metallic pipeInfo
- Publication number
- JPS574310A JPS574310A JP7920180A JP7920180A JPS574310A JP S574310 A JPS574310 A JP S574310A JP 7920180 A JP7920180 A JP 7920180A JP 7920180 A JP7920180 A JP 7920180A JP S574310 A JPS574310 A JP S574310A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- pipe
- blank
- mill
- piercing
- 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
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
- B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To make the production efficiency and product quality excellent as securing the uniformity of dimensions of cross section of a pipe, by inserting a mandrel through a blank pipe as feeding it reversely in order to apply a pipe piercing work to the pipe blank, in a multistand piercing mill, and then, by cooling the mandrel as it is kept in the mill. CONSTITUTION:A mandrel 1 is clamped by a pinch roll 7 and is left behind in a piercing mill 3; under this condition, a water spray 6 sprays cooling water against the mandrel 1 to cool it. A blank pipe MT is laid upon a table arranged between a mandrel holder 2 and the mill. The pinch roll 7 backward feeds the mandrel 1 in order to insert it through the blank pipe MT and the mandrel holder 2 grips the rear end of the mandrel 1. During this operation, the lubricant oil is applied to the mandrel 1. Next, the blank pipe MT is forward moved and is bitten by a stand 31 and is subjected to a forward piercing work while the mandrel holder 2 controlledly forward feeds the mandrel 1. After the blank pipe MT is formed into a pipe SP, an extractor 4 draws the pipe SP; at a suitable point of time after the rear end of the pipe SP passes over the stand 37 finishing the piercing work, the mandrel 1 is stopped. Hereby, the mandrel 1 is pulled out of the pipe SP which is then taken away; the mandrel 1 is then lamped by the pinch roll 7, an the mandrel holder 2 releases the mandrel 1 and returns backward to the initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7920180A JPS574310A (en) | 1980-06-11 | 1980-06-11 | Method and apparatus for rolling metallic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7920180A JPS574310A (en) | 1980-06-11 | 1980-06-11 | Method and apparatus for rolling metallic pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS574310A true JPS574310A (en) | 1982-01-09 |
Family
ID=13683339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7920180A Pending JPS574310A (en) | 1980-06-11 | 1980-06-11 | Method and apparatus for rolling metallic pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574310A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115309A (en) * | 1983-11-25 | 1985-06-21 | Kawasaki Heavy Ind Ltd | Elongating installation for seamless steel pipe |
| JPH01218708A (en) * | 1988-02-29 | 1989-08-31 | Sumitomo Metal Ind Ltd | mandrel mill |
| US5382156A (en) * | 1992-10-12 | 1995-01-17 | Fuji Photo Film Co., Ltd. | Apparatus for extracting injection-molded product |
| WO2022033760A1 (en) * | 2020-08-12 | 2022-02-17 | Sms Group Gmbh | Device and method for handling mandrel rods in a tube rolling mill |
-
1980
- 1980-06-11 JP JP7920180A patent/JPS574310A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115309A (en) * | 1983-11-25 | 1985-06-21 | Kawasaki Heavy Ind Ltd | Elongating installation for seamless steel pipe |
| JPH01218708A (en) * | 1988-02-29 | 1989-08-31 | Sumitomo Metal Ind Ltd | mandrel mill |
| US5382156A (en) * | 1992-10-12 | 1995-01-17 | Fuji Photo Film Co., Ltd. | Apparatus for extracting injection-molded product |
| WO2022033760A1 (en) * | 2020-08-12 | 2022-02-17 | Sms Group Gmbh | Device and method for handling mandrel rods in a tube rolling mill |
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