JPH0472601B2 - - Google Patents
Info
- Publication number
- JPH0472601B2 JPH0472601B2 JP11359887A JP11359887A JPH0472601B2 JP H0472601 B2 JPH0472601 B2 JP H0472601B2 JP 11359887 A JP11359887 A JP 11359887A JP 11359887 A JP11359887 A JP 11359887A JP H0472601 B2 JPH0472601 B2 JP H0472601B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- piercing
- mannesmann
- billet
- 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.)
- Expired
Links
- 238000005096 rolling process Methods 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 24
- 229910000859 α-Fe Inorganic materials 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 229910001566 austenite Inorganic materials 0.000 claims description 18
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 13
- 238000010587 phase diagram Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 description 21
- 238000010438 heat treatment Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000001556 precipitation Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000001192 hot extrusion Methods 0.000 description 7
- 230000020169 heat generation Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 239000002436 steel type Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 201000004384 Alopecia Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003676 hair loss Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11359887A JPS63281705A (ja) | 1987-05-12 | 1987-05-12 | マンネスマンピアサ穿孔圧延方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11359887A JPS63281705A (ja) | 1987-05-12 | 1987-05-12 | マンネスマンピアサ穿孔圧延方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63281705A JPS63281705A (ja) | 1988-11-18 |
| JPH0472601B2 true JPH0472601B2 (fr) | 1992-11-18 |
Family
ID=14616267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11359887A Granted JPS63281705A (ja) | 1987-05-12 | 1987-05-12 | マンネスマンピアサ穿孔圧延方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63281705A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9702792A (es) * | 1994-10-20 | 1998-02-28 | Sumitomo Metal Ind | Procedimiento para fabricar tubos de acero sin costura. |
| JP4359783B2 (ja) | 2004-05-28 | 2009-11-04 | 住友金属工業株式会社 | 継目無鋼管の製造方法 |
| WO2007100042A1 (fr) | 2006-03-01 | 2007-09-07 | Sumitomo Metal Industries, Ltd. | PROCEDE DE PRODUCTION D'UN TUYAU SANS SOUDURE A TENEUR ELEVEE EN Cr |
-
1987
- 1987-05-12 JP JP11359887A patent/JPS63281705A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63281705A (ja) | 1988-11-18 |
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