ES465420A1 - Perfeccionamientos en los dispositivos de extraccion para laminadores continuos que operan con mandril retenido. - Google Patents
Perfeccionamientos en los dispositivos de extraccion para laminadores continuos que operan con mandril retenido.Info
- Publication number
- ES465420A1 ES465420A1 ES465420A ES465420A ES465420A1 ES 465420 A1 ES465420 A1 ES 465420A1 ES 465420 A ES465420 A ES 465420A ES 465420 A ES465420 A ES 465420A ES 465420 A1 ES465420 A1 ES 465420A1
- Authority
- ES
- Spain
- Prior art keywords
- extraction device
- rollers
- continuous rolling
- rolling mills
- mandrel
- 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
- 238000000605 extraction Methods 0.000 title abstract 3
- 230000000717 retained effect Effects 0.000 title abstract 2
- 238000005096 rolling process Methods 0.000 title abstract 2
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C45/00—Separating mandrels from work or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Forging (AREA)
Abstract
Perfeccionamientos en los dispositivos de extracción para laminadores continuos que operan con mandril retenidocomprendiendo por lo menos una caja de laminación de tres rodillos que definen un paso para un tubo que ha de extraerse de dicho mandril retenidocaracterizados porque dichos rodillos (23 y 4) son mantenidos en posición operativa por correspondientes miembros prensores (11) soportados por la propia caja de laminación (1)siendo cada uno de dichos miembros prensores (1) elásticamente cedibles en dirección sustancialmente radial con respecto a dicho paso (P) con motivo de una presión mayor a un valor prefijado ejercida sobre el rodillo correspondiente (23 y 4) del interior del propio paso (P).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21304/77A IT1115716B (it) | 1977-03-16 | 1977-03-16 | Apparecchiatura di estrazione per laminatoi continui operanti con mandrino trattenuto |
Publications (1)
Publication Number | Publication Date |
---|---|
ES465420A1 true ES465420A1 (es) | 1978-09-16 |
Family
ID=11179808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES465420A Expired ES465420A1 (es) | 1977-03-16 | 1977-12-24 | Perfeccionamientos en los dispositivos de extraccion para laminadores continuos que operan con mandril retenido. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4158954A (es) |
JP (1) | JPS53113752A (es) |
DE (1) | DE2802742C2 (es) |
ES (1) | ES465420A1 (es) |
FR (1) | FR2383717B1 (es) |
GB (1) | GB1564248A (es) |
HU (1) | HU176115B (es) |
IT (1) | IT1115716B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2469962A1 (fr) * | 1979-11-21 | 1981-05-29 | Vallourec | Procede et dispositif pour la fabrication d'un tube d'acier sans soudure par laminage a chaud sur mandrin |
IT1151443B (it) * | 1982-06-03 | 1986-12-17 | Innocenti Santeustacchio Spa | Apparecchiatura per il sostegno della stanga portapunta di una macchina di perforazione assiale a caldo di billette,lingotti e simili |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1782968A (en) * | 1927-02-04 | 1930-11-25 | Bethlehem Steel Corp | Means for rolling tubes |
US2085968A (en) * | 1933-12-28 | 1937-07-06 | Schloemann Ag | Tube rolling method |
GB509361A (en) * | 1937-06-21 | 1939-07-14 | Demag Ag | Continuous rolling mill for producing tubes |
DE875035C (de) * | 1950-01-31 | 1953-04-30 | Kocks Gmbh Friedrich | Verstellbare Lagerung fuer Walzen, Walz- oder Richtrollen, insbesondere fuer Rundquerschnitte |
US3277687A (en) * | 1963-09-09 | 1966-10-11 | Gen Mills Inc | Plug handling apparatus for seamless tube mill |
US3392565A (en) * | 1965-02-15 | 1968-07-16 | Blaw Knox Co | Manufacture of seamless tubing |
GB1158587A (en) * | 1965-12-16 | 1969-07-16 | British Iron Steel Research | Improvements in and relating to Mill Stands |
-
1977
- 1977-03-16 IT IT21304/77A patent/IT1115716B/it active
- 1977-12-24 ES ES465420A patent/ES465420A1/es not_active Expired
- 1977-12-29 GB GB54137/77A patent/GB1564248A/en not_active Expired
- 1977-12-29 FR FR7739709A patent/FR2383717B1/fr not_active Expired
-
1978
- 1978-01-23 DE DE2802742A patent/DE2802742C2/de not_active Expired
- 1978-02-16 US US05/878,440 patent/US4158954A/en not_active Expired - Lifetime
- 1978-03-02 JP JP2289378A patent/JPS53113752A/ja active Granted
- 1978-03-14 HU HU78IO258A patent/HU176115B/hu unknown
Also Published As
Publication number | Publication date |
---|---|
FR2383717B1 (es) | 1983-08-05 |
JPS6110203B2 (es) | 1986-03-28 |
HU176115B (en) | 1980-12-28 |
GB1564248A (en) | 1980-04-02 |
FR2383717A1 (es) | 1978-10-13 |
IT1115716B (it) | 1986-02-03 |
DE2802742A1 (de) | 1978-09-21 |
US4158954A (en) | 1979-06-26 |
DE2802742C2 (de) | 1986-12-04 |
JPS53113752A (en) | 1978-10-04 |
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