FR2387699A1 - WELDLESS TUBE MANUFACTURING PROCESS - Google Patents

WELDLESS TUBE MANUFACTURING PROCESS

Info

Publication number
FR2387699A1
FR2387699A1 FR7811257A FR7811257A FR2387699A1 FR 2387699 A1 FR2387699 A1 FR 2387699A1 FR 7811257 A FR7811257 A FR 7811257A FR 7811257 A FR7811257 A FR 7811257A FR 2387699 A1 FR2387699 A1 FR 2387699A1
Authority
FR
France
Prior art keywords
manufacturing process
tube manufacturing
weldless tube
tooling
susceptible
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
Application number
FR7811257A
Other languages
French (fr)
Other versions
FR2387699B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aetna Standard Engineering Co
Original Assignee
Aetna Standard Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aetna Standard Engineering Co filed Critical Aetna Standard Engineering Co
Publication of FR2387699A1 publication Critical patent/FR2387699A1/en
Application granted granted Critical
Publication of FR2387699B1 publication Critical patent/FR2387699B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling

Abstract

Procédé de réalisation de tubes sans soudure à partir de billettes métalliques sensiblement rectangulaires. Ce procédé permet, avec des investissements en outillage plus faibles, d'obtenir au moins le même rendement et moins de déchets que les procédés selon la technique antérieure, ainsi que des produits de meilleure qualité. Susceptible en outre d'être facilement amélioré sans qu'il soit nécessaire de modifier beaucoup l'outillage, il est particulièrement intéressant pour les pays en voie de développement.Process for producing seamless tubes from substantially rectangular metal billets. This process makes it possible, with lower investment in tooling, to obtain at least the same yield and less waste than the processes according to the prior art, as well as products of better quality. In addition, susceptible of being easily improved without the need for much modification of the equipment, it is particularly interesting for developing countries.

FR7811257A 1977-04-18 1978-04-17 WELDLESS TUBE MANUFACTURING PROCESS Granted FR2387699A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78840177A 1977-04-18 1977-04-18

Publications (2)

Publication Number Publication Date
FR2387699A1 true FR2387699A1 (en) 1978-11-17
FR2387699B1 FR2387699B1 (en) 1982-11-12

Family

ID=25144382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811257A Granted FR2387699A1 (en) 1977-04-18 1978-04-17 WELDLESS TUBE MANUFACTURING PROCESS

Country Status (5)

Country Link
JP (1) JPS53140264A (en)
CA (1) CA1086104A (en)
DE (1) DE2816464A1 (en)
FR (1) FR2387699A1 (en)
GB (1) GB1575859A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443884A1 (en) * 1978-12-15 1980-07-11 Vallourec MANUFACTURING OF TUBES WITHOUT WELDING OF STRONG DIAMETERS
FR2496505A1 (en) * 1980-12-19 1982-06-25 Nippon Kokan Kk PROCESS FOR MANUFACTURING SOLDERED STEEL TUBES
FR2515539A1 (en) * 1981-11-04 1983-05-06 Meuse Tubes Usines Seamless tubes made from polygonal billets - esp. continuously cast octagonal billets, which are hot rolled into round billet and fed through skew piercing mill to make tube blank
FR2533844A1 (en) * 1982-10-01 1984-04-06 Mannesmann Ag ROLLING INSTALLATION FOR THE MANUFACTURE OF THIN-WELD SOLDER-FREE TUBES
FR2550719A1 (en) * 1983-08-02 1985-02-22 White Consolidated Ind Inc PROCESS FOR MANUFACTURING SOLDER-FREE TUBES AND SOLDER-FREE TUBE ROLLER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH036112Y2 (en) * 1985-06-24 1991-02-15

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR855265A (en) * 1938-05-27 1940-05-07 Mannesmann Roehren Werke Ag Manufacturing process of seamless tubes
US2218458A (en) * 1939-10-07 1940-10-15 Nat Tube Co Making of seamless steel tubes
US2306771A (en) * 1940-08-27 1942-12-29 Nat Tube Co Method of making metallic tubes
FR942767A (en) * 1946-03-11 1949-02-17 Process for preparing thin-thickness blanks for seamless tube bending trains
GB662746A (en) * 1948-11-04 1951-12-12 Wellman Smith Owen Eng Co Ltd Improvements in or relating to the production of seamless steel tubes and apparatus therefor
FR997717A (en) * 1948-12-01 1952-01-09 Wellman Smith Owen Eng Co Ltd Improvements in the manufacture of seamless steel tubes
FR2198797A1 (en) * 1972-09-08 1974-04-05 Vallourec
DE2528542B1 (en) * 1975-06-24 1976-11-25 Mannesmann Ag Process and device for rolling lot separation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR855265A (en) * 1938-05-27 1940-05-07 Mannesmann Roehren Werke Ag Manufacturing process of seamless tubes
US2218458A (en) * 1939-10-07 1940-10-15 Nat Tube Co Making of seamless steel tubes
US2306771A (en) * 1940-08-27 1942-12-29 Nat Tube Co Method of making metallic tubes
FR942767A (en) * 1946-03-11 1949-02-17 Process for preparing thin-thickness blanks for seamless tube bending trains
GB662746A (en) * 1948-11-04 1951-12-12 Wellman Smith Owen Eng Co Ltd Improvements in or relating to the production of seamless steel tubes and apparatus therefor
FR997717A (en) * 1948-12-01 1952-01-09 Wellman Smith Owen Eng Co Ltd Improvements in the manufacture of seamless steel tubes
FR2198797A1 (en) * 1972-09-08 1974-04-05 Vallourec
DE2528542B1 (en) * 1975-06-24 1976-11-25 Mannesmann Ag Process and device for rolling lot separation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443884A1 (en) * 1978-12-15 1980-07-11 Vallourec MANUFACTURING OF TUBES WITHOUT WELDING OF STRONG DIAMETERS
FR2496505A1 (en) * 1980-12-19 1982-06-25 Nippon Kokan Kk PROCESS FOR MANUFACTURING SOLDERED STEEL TUBES
FR2515539A1 (en) * 1981-11-04 1983-05-06 Meuse Tubes Usines Seamless tubes made from polygonal billets - esp. continuously cast octagonal billets, which are hot rolled into round billet and fed through skew piercing mill to make tube blank
FR2533844A1 (en) * 1982-10-01 1984-04-06 Mannesmann Ag ROLLING INSTALLATION FOR THE MANUFACTURE OF THIN-WELD SOLDER-FREE TUBES
FR2550719A1 (en) * 1983-08-02 1985-02-22 White Consolidated Ind Inc PROCESS FOR MANUFACTURING SOLDER-FREE TUBES AND SOLDER-FREE TUBE ROLLER

Also Published As

Publication number Publication date
JPS564322B2 (en) 1981-01-29
JPS53140264A (en) 1978-12-07
GB1575859A (en) 1980-10-01
FR2387699B1 (en) 1982-11-12
CA1086104A (en) 1980-09-23
DE2816464A1 (en) 1978-10-19

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Legal Events

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TP Transmission of property
TP Transmission of property
ST Notification of lapse