IT971762B - CHANGE DEVICE FOR GATUBI AND PIPE EXTENSION - Google Patents
CHANGE DEVICE FOR GATUBI AND PIPE EXTENSIONInfo
- Publication number
- IT971762B IT971762B IT32783/72A IT3278372A IT971762B IT 971762 B IT971762 B IT 971762B IT 32783/72 A IT32783/72 A IT 32783/72A IT 3278372 A IT3278372 A IT 3278372A IT 971762 B IT971762 B IT 971762B
- Authority
- IT
- Italy
- Prior art keywords
- gatubi
- change device
- pipe extension
- extension
- pipe
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
- B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Crushing And Grinding (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2163818A DE2163818A1 (en) | 1971-12-17 | 1971-12-17 | PLUG FOR PIPE ROLLING MILL |
DE7148215 | 1971-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT971762B true IT971762B (en) | 1974-05-10 |
Family
ID=25762205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT32783/72A IT971762B (en) | 1971-12-17 | 1972-12-12 | CHANGE DEVICE FOR GATUBI AND PIPE EXTENSION |
Country Status (6)
Country | Link |
---|---|
US (1) | US3762201A (en) |
JP (1) | JPS4867164A (en) |
DE (1) | DE2163818A1 (en) |
FR (1) | FR2163771B1 (en) |
GB (2) | GB1418687A (en) |
IT (1) | IT971762B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA960885A (en) * | 1972-08-02 | 1975-01-14 | Frederick W. Kruppert | Device for inserting plugs in a plug mill |
FR2322674A1 (en) * | 1974-01-10 | 1977-04-01 | Vallourec | MECHANICAL CHUCK CHANGE DEVICE FOR ROLLING ROLLERS |
FR2266557B1 (en) * | 1974-04-05 | 1977-10-14 | Valti Fabr Tubes Roulements | |
FR2282301A1 (en) * | 1974-08-22 | 1976-03-19 | Mannesmann Roehren Werke Ag | MULTI-PART SAFETY PLUGS FOR ROLLING MACHINE |
US4015460A (en) * | 1976-01-09 | 1977-04-05 | Damascus Steel Casting Company | Rolling mill plug assembly |
FR2338093A1 (en) * | 1976-01-19 | 1977-08-12 | Vallourec | NEW WELDLESS TUBE MANUFACTURING LAMINATOR AND SEAMLESS TUBE MANUFACTURING PLANT INCLUDING SUCH A ROLLER |
US4028923A (en) * | 1976-05-04 | 1977-06-14 | Aetna-Standard Engineering Company | Plug and shoe changing in piercing and reeling mills |
DE2652759C3 (en) * | 1976-11-16 | 1980-05-22 | Mannesmann Ag, 4000 Duesseldorf | Detachable connection between a mandrel and the mandrel bar of a cross rolling mill |
US4115958A (en) * | 1977-02-18 | 1978-09-26 | The Warner & Swasey Company | Method of cylindrical and shoulder grinding |
DE4431389C1 (en) * | 1994-08-25 | 1995-08-10 | Mannesmann Ag | Plug handling in plug rolling mills |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US529910A (en) * | 1894-11-27 | Apparatus for the manufacture of tubing | ||
US769709A (en) * | 1901-04-03 | 1904-09-13 | Nat Tube Co | Tube-rolling mill. |
US1537206A (en) * | 1923-03-17 | 1925-05-12 | Malcolm U Wikstrom | Tube-rolling method and apparatus |
US1931571A (en) * | 1931-08-04 | 1933-10-24 | Frank J Burns | Plug bar for seamless tube mills |
US1997997A (en) * | 1933-03-03 | 1935-04-16 | Diescher Tube Mills Inc | Mandrel for tube rolling mills |
US2635492A (en) * | 1946-03-20 | 1953-04-21 | Martin S Gettig | Plug-handling mechanism for seamless tube mills |
US3277687A (en) * | 1963-09-09 | 1966-10-11 | Gen Mills Inc | Plug handling apparatus for seamless tube mill |
BE715196A (en) * | 1967-05-18 | 1968-09-30 |
-
1971
- 1971-12-17 DE DE2163818A patent/DE2163818A1/en active Pending
-
1972
- 1972-01-19 JP JP47007566A patent/JPS4867164A/ja active Pending
- 1972-01-26 US US00220957A patent/US3762201A/en not_active Expired - Lifetime
- 1972-12-12 IT IT32783/72A patent/IT971762B/en active
- 1972-12-13 FR FR7245137A patent/FR2163771B1/fr not_active Expired
- 1972-12-18 GB GB5842472A patent/GB1418687A/en not_active Expired
- 1972-12-18 GB GB3029875A patent/GB1418688A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2163818A1 (en) | 1973-06-20 |
GB1418687A (en) | 1975-12-24 |
GB1418688A (en) | 1975-12-24 |
FR2163771A1 (en) | 1973-07-27 |
JPS4867164A (en) | 1973-09-13 |
FR2163771B1 (en) | 1975-06-20 |
US3762201A (en) | 1973-10-02 |
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