EP0529943A3 - Mandrel mill for seamless steel tubes - Google Patents
Mandrel mill for seamless steel tubes Download PDFInfo
- Publication number
- EP0529943A3 EP0529943A3 EP19920307612 EP92307612A EP0529943A3 EP 0529943 A3 EP0529943 A3 EP 0529943A3 EP 19920307612 EP19920307612 EP 19920307612 EP 92307612 A EP92307612 A EP 92307612A EP 0529943 A3 EP0529943 A3 EP 0529943A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- seamless steel
- steel tubes
- mandrel mill
- mandrel
- mill
- 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.)
- Withdrawn
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)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Control Of Metal Rolling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP233835/91 | 1991-08-22 | ||
JP3233835A JPH07102369B2 (en) | 1991-08-22 | 1991-08-22 | Mandrel mill |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0529943A2 EP0529943A2 (en) | 1993-03-03 |
EP0529943A3 true EP0529943A3 (en) | 1993-06-30 |
Family
ID=16961316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920307612 Withdrawn EP0529943A3 (en) | 1991-08-22 | 1992-08-20 | Mandrel mill for seamless steel tubes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0529943A3 (en) |
JP (1) | JPH07102369B2 (en) |
CA (1) | CA2076402C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008119706A (en) | 2006-11-09 | 2008-05-29 | Sumitomo Metal Ind Ltd | Mandrel mill and operation method thereof, and method for manufacturing seamless pipe |
JP5062522B2 (en) * | 2007-05-31 | 2012-10-31 | 住友金属工業株式会社 | Mandrel mill and seamless pipe manufacturing method |
CN114309076B (en) * | 2020-09-30 | 2023-05-16 | 宝武特种冶金有限公司 | Precision trimming method for ring hole type of seamless steel tube cold rolling mill |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58224155A (en) * | 1982-06-19 | 1983-12-26 | Kawasaki Steel Corp | Seamless two-phase stainless steel pipe and its manufacture |
JPS60106603A (en) * | 1983-11-15 | 1985-06-12 | Kawasaki Steel Corp | Manufacture of seamless steel pipe |
JPS6384720A (en) * | 1986-09-30 | 1988-04-15 | Kawasaki Steel Corp | Manufacture of seamless pipe by mandrel mill |
JPH01186205A (en) * | 1988-01-22 | 1989-07-25 | Nippon Steel Corp | Mandrel mill for manufacturing seamless steel tube |
JPH01284411A (en) * | 1988-05-09 | 1989-11-15 | Nkk Corp | Caliber roll for mandrel mill |
-
1991
- 1991-08-22 JP JP3233835A patent/JPH07102369B2/en not_active Expired - Fee Related
-
1992
- 1992-08-19 CA CA 2076402 patent/CA2076402C/en not_active Expired - Fee Related
- 1992-08-20 EP EP19920307612 patent/EP0529943A3/en not_active Withdrawn
Non-Patent Citations (7)
Title |
---|
DATABASE WPIL Section Ch, Week 8406, Derwent Publications Ltd., London, GB; Class M27, AN 84-033970 (06) & JP-A-58 224 155 (KAWASAKI STEEL) 26 December 1983 * |
H.NEUMANN ET AL.: 'Stahlrohrherstellung' 1970 , 3RD ED., DEUTSCHER VERLAG FÜR GRUNDSTOFFINDUSTRIE , LEIPZIG, DD * |
PATENT ABSTRACTS OF JAPAN vol. 12, no. 311 (M-734)24 August 1988 & JP-A-63 084 720 ( KAWASAKI STEEL ) 15 April 1988 * |
PATENT ABSTRACTS OF JAPAN vol. 13, no. 473 (M-884)26 October 1989 & JP-A-01 186 205 ( NIPPON STEEL ) 25 July 1989 * |
PATENT ABSTRACTS OF JAPAN vol. 14, no. 58 (M-930)2 February 1990 & JP-A-01 284 411 ( NKK ) 15 November 1989 * |
PATENT ABSTRACTS OF JAPAN vol. 9, no. 256 (M-421)15 October 1985 & JP-A-60 106 603 ( KAWASAKI SEITETSU ) 12 June 1985 * |
W.T.LANKFORD ET AL.: 'The Making, Shaping and Treating of Steel' 1985 , 10TH ED., AISE , PITTSBURGH, PA, US * |
Also Published As
Publication number | Publication date |
---|---|
JPH0550115A (en) | 1993-03-02 |
EP0529943A2 (en) | 1993-03-03 |
CA2076402A1 (en) | 1993-02-23 |
CA2076402C (en) | 1996-03-05 |
JPH07102369B2 (en) | 1995-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19930813 |
|
17Q | First examination report despatched |
Effective date: 19940311 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19950111 |