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 sectionsInfo
- 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
Links
Landscapes
- 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.
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)
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)
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)
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 |
-
1996
- 1996-11-20 ES ES9602447A patent/ES2147476B1/en not_active Expired - Fee Related
-
2000
- 2000-05-16 ES ES200001213A patent/ES2193800B2/en not_active Expired - Fee Related
Patent Citations (6)
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)
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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Legal Events
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EC2A | Search report published |
Date of ref document: 20000901 Kind code of ref document: A1 Effective date: 20000901 |
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