ES2147476A1 - Stainless steel tube sections union technique involves welding after expansion of the section ends, via an orbital head bonding a tubular insert to the sections - Google Patents

Stainless steel tube sections union technique involves welding after expansion of the section ends, via an orbital head bonding a tubular insert to the sections

Info

Publication number
ES2147476A1
ES2147476A1 ES9602447A ES9602447A ES2147476A1 ES 2147476 A1 ES2147476 A1 ES 2147476A1 ES 9602447 A ES9602447 A ES 9602447A ES 9602447 A ES9602447 A ES 9602447A ES 2147476 A1 ES2147476 A1 ES 2147476A1
Authority
ES
Spain
Prior art keywords
sections
head
welding
stainless steel
orbital
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
ES9602447A
Other languages
Spanish (es)
Other versions
ES2147476B1 (en
Inventor
Perez-Sole Ramon Martinez
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.)
FRIMETAL S A
Original Assignee
FRIMETAL S A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8296744&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2147476(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by FRIMETAL S A filed Critical FRIMETAL S A
Priority to ES9602447A priority Critical patent/ES2147476B1/en
Priority to ES200001213A priority patent/ES2193800B2/en
Publication of ES2147476A1 publication Critical patent/ES2147476A1/en
Application granted granted Critical
Publication of ES2147476B1 publication Critical patent/ES2147476B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)

Abstract

Method and head for connecting lengths of stainless tube which are welded using the "TIG"" system in an inert atmosphere to avoid nitriding of the material, the weld being performed using special equipment with an orbital head, the said method consisting in first expanding the ends (11) and (21) of the parts to be joined (1) and (2) to an internal diameter that is equal to the external diameter of the original tube and placing a tubular bush (3) inside, of a length equal to the two expanded areas, and then welding them once the opposite parts have been coupled with the bush (3) and inside, which ensures alignment as well as serving as a flux for orbital welding around the joint.< IMAGE >The stainless steel tube sections union technique comprises expansion of the ends of the sections to bring the bore to the initial outside diameter size. Also claimed is a head for applying the technique. The head inserts a tubular element into the system, equal in length to the total length of the expanded zones of the sections (1,2). TIG welding is carried out on the assembly as a guide to orbital welding round the union, with fusion of the initial weld.
ES9602447A 1996-11-20 1996-11-20 METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS. Expired - Fee Related ES2147476B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES9602447A ES2147476B1 (en) 1996-11-20 1996-11-20 METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS.
ES200001213A ES2193800B2 (en) 1996-11-20 2000-05-16 IMPROVEMENTS INTRODUCED IN PATENT 9602447, METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9602447A ES2147476B1 (en) 1996-11-20 1996-11-20 METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS.

Publications (2)

Publication Number Publication Date
ES2147476A1 true ES2147476A1 (en) 2000-09-01
ES2147476B1 ES2147476B1 (en) 2001-04-01

Family

ID=8296744

Family Applications (2)

Application Number Title Priority Date Filing Date
ES9602447A Expired - Fee Related ES2147476B1 (en) 1996-11-20 1996-11-20 METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS.
ES200001213A Expired - Fee Related ES2193800B2 (en) 1996-11-20 2000-05-16 IMPROVEMENTS INTRODUCED IN PATENT 9602447, METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES200001213A Expired - Fee Related ES2193800B2 (en) 1996-11-20 2000-05-16 IMPROVEMENTS INTRODUCED IN PATENT 9602447, METHOD AND HEAD FOR UNION OF STAINLESS STEEL PIPE PARTS.

Country Status (1)

Country Link
ES (2) ES2147476B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2241455A1 (en) * 2003-09-15 2005-10-16 Intercambiadores Termicos Intersam S.L. Stainless steel tubes lap welding includes telescoping of tube ends after deformation, for welding proper
ES2326449A1 (en) * 2007-04-23 2009-10-09 Intercambiadores Termicos Intersam S. Perfected provision for the unión by tig saldure of stainless steel tubes in thermal exchangers (Machine-translation by Google Translate, not legally binding)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB242456A (en) * 1924-11-26 1925-11-12 Bromford Ltd Improvements in joints for wrought metal tubes
FR641662A (en) * 1927-09-29 1928-08-08 Escaut Et Meuse Sa D Reinforced seal for pipes made of iron or steel pipes
US1990077A (en) * 1930-02-17 1935-02-05 Superheater Co Ltd Process for joining pipes
US3688069A (en) * 1970-11-23 1972-08-29 Gasparas Kazlauskas Welding head apparatus
EP0433179A1 (en) * 1989-12-15 1991-06-19 Electricite De France Procedure for replacing a heater of a pressurizer in a nuclear reactor and device used in such a procedure
FR2673996A1 (en) * 1991-03-11 1992-09-18 Vautrin Serge CONNECTION OF ASSEMBLY BY WELDING OF TWO TUBULAR ELEMENTS.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1810091A (en) * 1928-09-05 1931-06-16 Youngstown Sheet And Tube Co Joint for iron and steel pipes and tubes
US4505420A (en) * 1983-02-15 1985-03-19 Phillips Petroleum Company Welding spacer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB242456A (en) * 1924-11-26 1925-11-12 Bromford Ltd Improvements in joints for wrought metal tubes
FR641662A (en) * 1927-09-29 1928-08-08 Escaut Et Meuse Sa D Reinforced seal for pipes made of iron or steel pipes
US1990077A (en) * 1930-02-17 1935-02-05 Superheater Co Ltd Process for joining pipes
US3688069A (en) * 1970-11-23 1972-08-29 Gasparas Kazlauskas Welding head apparatus
EP0433179A1 (en) * 1989-12-15 1991-06-19 Electricite De France Procedure for replacing a heater of a pressurizer in a nuclear reactor and device used in such a procedure
FR2673996A1 (en) * 1991-03-11 1992-09-18 Vautrin Serge CONNECTION OF ASSEMBLY BY WELDING OF TWO TUBULAR ELEMENTS.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2241455A1 (en) * 2003-09-15 2005-10-16 Intercambiadores Termicos Intersam S.L. Stainless steel tubes lap welding includes telescoping of tube ends after deformation, for welding proper
ES2326449A1 (en) * 2007-04-23 2009-10-09 Intercambiadores Termicos Intersam S. Perfected provision for the unión by tig saldure of stainless steel tubes in thermal exchangers (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
ES2193800B2 (en) 2004-07-16
ES2193800A1 (en) 2003-11-01
ES2147476B1 (en) 2001-04-01

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