JPS54125165A - Drilling method for primary hole for piercing of round rod for pipe forming - Google Patents
Drilling method for primary hole for piercing of round rod for pipe formingInfo
- Publication number
- JPS54125165A JPS54125165A JP3393578A JP3393578A JPS54125165A JP S54125165 A JPS54125165 A JP S54125165A JP 3393578 A JP3393578 A JP 3393578A JP 3393578 A JP3393578 A JP 3393578A JP S54125165 A JPS54125165 A JP S54125165A
- Authority
- JP
- Japan
- Prior art keywords
- round rod
- primary hole
- extractor
- slider
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 3
- 229910001882 dioxygen Inorganic materials 0.000 abstract 3
- 238000013459 approach Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
Abstract
PURPOSE:To shorten the heat radiating time of the round rod for contriving the reduction of heat loss, and also, to improve the piercing pitch, by drilling the primary hole providing for the piercing work at the heat end face of the round rod with the primary hole drill followable to the extractor, in the process where the round rod is extracted and conveyed by the extractor. CONSTITUTION:The extractor 2 consists of the slider 4 slidable along the guide rail 3, and the gripper 5 installed at the tip of the slider 4; the gripper 5 is inserted into the heating furnace 1 by sliding the slider 4 of the extractor 2; the gripper 5 grips the heated round rod 6 and is moved backward again; hereby, the round rod 6 is extracted. The primary hole drill 7 installed in the slider 4 approaches the head end 11 of the round rod 6 and stops at a suitable position; after that, oxygen gas from the oxygen gas supplier 9 is injected by the oxygen gas injector 8, and the primary hole 12 is drilled metallurgically. The round rod 6 provided with the primary hole 12 is sent to the piercer by the conveying skid 13 and is pierced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3393578A JPS6012128B2 (en) | 1978-03-24 | 1978-03-24 | Preparation method for drilling round steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3393578A JPS6012128B2 (en) | 1978-03-24 | 1978-03-24 | Preparation method for drilling round steel tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54125165A true JPS54125165A (en) | 1979-09-28 |
| JPS6012128B2 JPS6012128B2 (en) | 1985-03-30 |
Family
ID=12400358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3393578A Expired JPS6012128B2 (en) | 1978-03-24 | 1978-03-24 | Preparation method for drilling round steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012128B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976602A (en) * | 2019-11-08 | 2020-04-10 | 安徽莱鑫精密特种钢管有限公司 | Manufacturing equipment for seamless steel pipe |
-
1978
- 1978-03-24 JP JP3393578A patent/JPS6012128B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976602A (en) * | 2019-11-08 | 2020-04-10 | 安徽莱鑫精密特种钢管有限公司 | Manufacturing equipment for seamless steel pipe |
| CN110976602B (en) * | 2019-11-08 | 2021-07-02 | 安徽莱鑫精密特种钢管有限公司 | Manufacturing equipment for seamless steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6012128B2 (en) | 1985-03-30 |
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