JPH0252108A - マンドレルの取替時期を決定する方法 - Google Patents
マンドレルの取替時期を決定する方法Info
- Publication number
- JPH0252108A JPH0252108A JP18178889A JP18178889A JPH0252108A JP H0252108 A JPH0252108 A JP H0252108A JP 18178889 A JP18178889 A JP 18178889A JP 18178889 A JP18178889 A JP 18178889A JP H0252108 A JPH0252108 A JP H0252108A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- rolling
- tension
- stand
- torque
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims description 36
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009785 tube rolling Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18178889A JPH0252108A (ja) | 1989-07-14 | 1989-07-14 | マンドレルの取替時期を決定する方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18178889A JPH0252108A (ja) | 1989-07-14 | 1989-07-14 | マンドレルの取替時期を決定する方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55152682A Division JPS5775209A (en) | 1980-10-30 | 1980-10-30 | Pipe piercing mill and its tension controlling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0252108A true JPH0252108A (ja) | 1990-02-21 |
| JPH04722B2 JPH04722B2 (enrdf_load_stackoverflow) | 1992-01-08 |
Family
ID=16106885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18178889A Granted JPH0252108A (ja) | 1989-07-14 | 1989-07-14 | マンドレルの取替時期を決定する方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0252108A (enrdf_load_stackoverflow) |
-
1989
- 1989-07-14 JP JP18178889A patent/JPH0252108A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04722B2 (enrdf_load_stackoverflow) | 1992-01-08 |
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