EP1744854A1 - Method for joining dispersion-strengthened alloy - Google Patents
Method for joining dispersion-strengthened alloyInfo
- Publication number
- EP1744854A1 EP1744854A1 EP05736065A EP05736065A EP1744854A1 EP 1744854 A1 EP1744854 A1 EP 1744854A1 EP 05736065 A EP05736065 A EP 05736065A EP 05736065 A EP05736065 A EP 05736065A EP 1744854 A1 EP1744854 A1 EP 1744854A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispersion
- joining
- construction
- joint
- tube
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005304 joining Methods 0.000 title claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 15
- 239000000956 alloy Substances 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 30
- 238000005242 forging Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000005336 cracking Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 description 19
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- -1 e.g. Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000953 kanthal Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/34—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
Definitions
- the present invention relates to a method for joining two or more compo- nents and/or construction parts, at least one of which consists of a dispersion-strengthened alloy.
- Construction parts of dispersion-strengthened material such as, e.g., Kanthal APM or APMT have turned out to best meet the requirements that are made on the construction parts in so-called high-temperature applications, where, e.g., gases are led through a radiant tube that has been heated by means of surrounding burners to a sufficiently high temperature, for instance about 1100 °C.
- gases are led through a radiant tube that has been heated by means of surrounding burners to a sufficiently high temperature, for instance about 1100 °C.
- the tube is heated from the outside to a temperature at which the chemical reaction occurs.
- Typical for the temperature of the tube at the inlet end of the gas is 900 °C and at the outlet end 1125 °C and up to 1200 °C.
- the material may contain molybdenum (Mo).
- Mo molybdenum
- the creep strength was increased by means of a material according to the patent No. 467 414.
- additional raised requirements on creep strength, ductility, as well as raised requirements on the service life of said tube have been added. It would also be desirable to be able to manufacture longer tubes that resist the high temperature during longer time than tubes known hitherto.
- the Swedish patent application No. 0301500-5 discloses radiant tubes in a cracking furnace, where hydrocarbons are cracked into ethylene in a tube through which hydrocarbons flow, which is heated from the outside to a temperature at which cracking of hydrocarbons occurs, and is characterized in that the tube is made from a FeCrAI material containing, in addition to Fe, 10-25 % by weight of Cr, 1-10 % by weight of Al and 1 ,5-5 % by weight of Mo as well as a smaller quantity of alloying elements.
- Dispersion-strengthened alloys are mostly used in applications where temperatures up to 1200 °C occur. This, in combination with construction principles that require long, suspended tubes, imposes special requirements on welds and joinings, respectively, of the tubes.
- the construction is optimized in terms of the wall thickness. The decisive factors are the service life and a maximum heat transfer from the outside of the tube, which are promoted by thinner tubes and higher strength. The strength of the tube has to be chosen so that at least the dead load is carried.
- a construction part may typically be up to 10 to 17 m long and may, for instance, be composed of two or more parts, e.g., tubes, welded together.
- the present invention provides a method for joining construction parts where one or both parts consist of a dispersion-strengthened alloy by combining known joining techniques with cross-section enlargement of the joint area with the purpose of increasing the strength in the joint and weld area, respectively, to such an amount that the load is carried by the tube.
- the present invention provides a method for joining construction parts where one or both parts consist of a dispersion-strengthened alloy by cross-section enlargement of the joint area before the joining with the purpose of increasing the strength in the joint and weld area, respectively, to such an amount that the load is carried by the tube and the use of the construction part in high-temperature applications.
- the dispersion-strengthened alloy that is used in the method according to the present invention has a composition according to the following (in % by weight): C up to 0,08 Si up to 0,7 Cr 10-25
- the material contains smaller fractions of one or more of the alloying elements hafnium, zirconium, yttrium, nitrogen, carbon and oxygen.
- the present invention may be varied in respect of the material composition above all regarding alloying elements that have low content in the material.
- the wall thickness of the construction part should be enlarged only at the joint area. No noticeable increase in dead load arises and the heat transfer does not become altered in comparison with conventional design.
- the load experienced by the joint is calculated according to equation 1.
- equation (1) yields the following ⁇ b :
- equation (1) yields:
- the desired enlargement of the wall thickness of said construction parts that are to be joined may be achieved by a plurality of manufacturing methods such as forging, HlP-ing and turning.
- forging In high temperature applications with the construction parts of the above-described material being used, the tube length frequently exceeds 6 m. This entails that forging is the most cost- effective method for joining or welding tubes to desired construction and/or length.
- wall thickening should have an extension in the longitudinal axis of the construction part and of the tube, respectively, of at least 30 mm.
- the cross section should be enlarged by an amount that at least corresponds to the load decrease that is aimed at, i.e., the cross-section enlargement is inversely proportional to the load according to the equation above.
- the method according to the present invention also has the advantage that one or more construction parts of dispersion-strengthened and/or other materials, such as, e.g., stainless steel, can be joined.
- the method according to the present invention has the advantage to be capable of making use of conventional methods, such as, e.g., conventional welding as TIG for the joining of the forged construction parts, which is a significant factor in respect of construction and assembly.
- a possible field of application for tubes joined by the method according to the present invention is so-called radiant tubes in cracking furnaces.
- H 2 C H 2 C, which constitutes a raw material for the plastics indus- try.
- Radiant tubes occur in a cracking furnace, where hydrocarbons are cracked into ethylene in a tube through which hydrocarbons flow.
- the cracking takes place by the fact that hydrocarbons are led through a radiant tube that has been heated by means of surrounding burners to a sufficiently high temperature at which cracking occurs, for instance about 1100 °C, for ethylene to be formed in the tube.
- the temperature of the tube at the inlet end of the gas is 900 °C and at the outlet end approx. 1125 °C and up to 1200 °C.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Arc Welding In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0401139A SE528132C2 (sv) | 2004-04-30 | 2004-04-30 | Metod för sammanfogning av dispersionshärdande legering |
| PCT/SE2005/000572 WO2005105362A1 (en) | 2004-04-30 | 2005-04-20 | Method for joining dispersion-strengthened alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1744854A1 true EP1744854A1 (en) | 2007-01-24 |
Family
ID=32466193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05736065A Withdrawn EP1744854A1 (en) | 2004-04-30 | 2005-04-20 | Method for joining dispersion-strengthened alloy |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080141616A1 (ko) |
| EP (1) | EP1744854A1 (ko) |
| JP (1) | JP2007535409A (ko) |
| KR (1) | KR20070005711A (ko) |
| CN (1) | CN1950171A (ko) |
| SE (1) | SE528132C2 (ko) |
| WO (1) | WO2005105362A1 (ko) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE528189C2 (sv) * | 2004-12-21 | 2006-09-19 | Sandvik Intellectual Property | Förfarande samt rörfog för hopfogning av komponenter som innefattar eller är gjort av ett material som är svårt att svetsa |
| US10480332B2 (en) | 2014-12-10 | 2019-11-19 | General Electric Company | Rotors and methods of making the same |
| US10260370B2 (en) | 2014-12-10 | 2019-04-16 | General Electric Company | Nanostructured ferritic alloy components and related articles |
| ES2938132B2 (es) * | 2021-10-04 | 2023-09-26 | Mecanizacion Ind Astillero S A | Método de optimización de la rugosidad de un cilindro de laminación mediante proyección térmica a alta velocidad |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR695339A (fr) * | 1930-05-08 | 1930-12-13 | Procédé d'assemblage par soudure pour tuyaux métalliques | |
| US3572777A (en) * | 1969-05-05 | 1971-03-30 | Armco Steel Corp | Multiple seal, double shoulder joint for tubular products |
| JPH09257167A (ja) * | 1996-03-19 | 1997-09-30 | Daiwa House Ind Co Ltd | 配管の継手部構造およびその製造方法 |
| SE508595C2 (sv) * | 1997-08-12 | 1998-10-19 | Sandvik Ab | Användning av en ferritisk Fe-Cr-Al-legering vid framställning av kompoundrör, samt kompoundrör och användning av röret |
| JPH11209850A (ja) * | 1998-01-23 | 1999-08-03 | Jgc Corp | 加熱炉管および加熱炉管の使用方法 |
| SE513989C2 (sv) * | 2000-01-01 | 2000-12-11 | Sandvik Ab | Förfarande för tillverkning av ett FeCrAl-material och ett sådant marerial |
| TW494201B (en) * | 2001-08-08 | 2002-07-11 | Jgc Corp | Connection method and structure for pipe with poor weldability for high temperature application |
-
2004
- 2004-04-30 SE SE0401139A patent/SE528132C2/sv not_active IP Right Cessation
-
2005
- 2005-04-20 EP EP05736065A patent/EP1744854A1/en not_active Withdrawn
- 2005-04-20 JP JP2007510651A patent/JP2007535409A/ja active Pending
- 2005-04-20 KR KR1020067022670A patent/KR20070005711A/ko not_active Application Discontinuation
- 2005-04-20 US US11/587,967 patent/US20080141616A1/en not_active Abandoned
- 2005-04-20 CN CNA2005800137022A patent/CN1950171A/zh active Pending
- 2005-04-20 WO PCT/SE2005/000572 patent/WO2005105362A1/en active Application Filing
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005105362A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0401139D0 (sv) | 2004-04-30 |
| WO2005105362A1 (en) | 2005-11-10 |
| SE528132C2 (sv) | 2006-09-12 |
| SE0401139L (sv) | 2005-10-31 |
| US20080141616A1 (en) | 2008-06-19 |
| JP2007535409A (ja) | 2007-12-06 |
| KR20070005711A (ko) | 2007-01-10 |
| CN1950171A (zh) | 2007-04-18 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
Effective date: 20061130 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
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| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20090519 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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| 18W | Application withdrawn |
Effective date: 20091009 |