CN1950171A - Method for joining dispersion-strengthened alloy - Google Patents

Method for joining dispersion-strengthened alloy Download PDF

Info

Publication number
CN1950171A
CN1950171A CNA2005800137022A CN200580013702A CN1950171A CN 1950171 A CN1950171 A CN 1950171A CN A2005800137022 A CNA2005800137022 A CN A2005800137022A CN 200580013702 A CN200580013702 A CN 200580013702A CN 1950171 A CN1950171 A CN 1950171A
Authority
CN
China
Prior art keywords
pipe
dispersion
strengthened
structure member
alloy
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.)
Pending
Application number
CNA2005800137022A
Other languages
Chinese (zh)
Inventor
克拉斯·欧恩格伦
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.)
Sandvik Intellectual Property AB
Original Assignee
Sandvik Intellectual Property AB
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 Sandvik Intellectual Property AB filed Critical Sandvik Intellectual Property AB
Publication of CN1950171A publication Critical patent/CN1950171A/en
Pending legal-status Critical Current

Links

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
    • 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
    • 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
    • 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
    • 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
    • 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

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)

Abstract

The present invention relates to a method for joining two or more components and/or construction parts, at least one of which consists of a dispersion-strengthened alloy having the following composition (in % by weight): C up to 0,08 Si up to 0,7 Cr 10-25 Al 1-10 Mo 1,5-5 Mn up to 0,4 balance Fe as well as normally occurring impurities by the fact that the cross section in the joint is enlarged by forging before joining and where the product manufactured according to the method can be used in high-temperature applications at temperatures above 900 DEG C.

Description

The associated methods of strengthened dispersion alloy
Technical field
This invention relates to a kind of method that is used in conjunction with two or more parts and/or structure member, and one of them part or parts are made up of strengthened dispersion alloy at least.
Background technology
For example the structure member made by dispersion-strengthened material like this of Kanthal APM or APMT has been proved to be the requirement that can satisfy the structure member in so-called high temperature is used admirably, for example: with gas introduce by by around burner be heated in the radiant tube of sufficiently high temperature (as: 1100 ℃).This radiant tube by external heat to the temperature that chemical reaction can take place.Representative temperature at this pipe gas inlet end place is 900 ℃, and port of export place is 1125 ℃, the highlyest is up to 1200 ℃.
In Swedish patent No.467414, disclosed a kind of FeCrAl dispersion-strengthened material, according to its record, the same cobalt of this material, nickel, silicon, manganese, zirconium, titanium and a spot of yttrium and hafnium carry out alloy, are heated at least 1050 ℃ subsequently, have so just improved its creep strength.Radiant tube is made by this material.
In Swedish patent No.513989, disclosed a kind of method of utilizing gas atomization to produce the FeCrAl dispersion-strengthened material.Utilize the problem in the gas atomization that the method in this application solves to be, in the process of the dispersion-strengthened material of producing titaniferous, TiN and TiC granule will form in filler before atomizing, and these particles are attached to the fusion ozzle that is used to atomize, and caused it blocked.Its solution is to make filler to be atomized contain the tantalum that percentage by weight is 0.05-0.50%, and the percentage by weight of titanium is less than 0.10% simultaneously.According to patent No.513989 record, this material can also contain molybdenum.
As mentioned above, it is said and to improve creep strength by the material of putting down in writing among the patent No.467414.Yet, this just increased creep strength to described pipe, ductility with and more additional requirements in service life.More wish simultaneously to produce and in the longer time, to resist high temperature and longer pipe than existing pipe.
Swedish patent application No.0301500-5 has disclosed the radiant tube in a kind of pyrolysis furnace, wherein, hydrocarbon is flowing through for it and is being cracked into ethene by external heat in the pipe of the temperature that can make hydrocarbon generation cracking, it is characterized in that, this pipe is made by the FeCrAl material, described FeCrAl material also contains Mo and a spot of alloying element of Al, the 1.5-5% of Cr, 1-10% that percentage by weight is 10-25% except containing Fe.
Strengthened dispersion alloy is used for temperature mostly up under 1200 ℃ the situation.Take the structural principle of its suspended tubes that need grow simultaneously into consideration, this is just respectively to the welding of pipe with in conjunction with having proposed special requirement.Optimization to structure is wall thickness.Deciding factor is to use the life-span and from the outside maximal heat transfer of pipe, this can be improved by light-wall pipe and high strength.Must select the intensity of pipe, thereby can carry dead load at least.The typical length of structure member is up to 10-17m, and can be for example to be welded together and formed by two or more parts (i.e. pipe).
When the one or more parts that one of them part contained strengthened dispersion alloy or structure member connect, the broad area that nitride for example and/or big oxide buildup group separate out will appear comprising, the structure of this just greatly weakened respectively described welding and joint.This reduction means by being in a certain specified temp and pressure and does not reach its structural strength standard in conjunction with the formed combination of the dispersion-strengthened material under the condition.Under the situation of many application dispersion-strengthened materials, dead load is the maximum load of junction load.Therefore because load can increase with the increase of wall thickness, therefore can not for satisfy the junction standard and increase the wall thickness of whole pipe.Equally, from cost and heat conducting angle, the result of use of thick-walled pipe is unlike the tubular construction ideal with traditional design technology.In order to utilize one or two parts that contain strengthened dispersion alloy that structure member is carried out combination, mechanical strength has reduced half than the base material of making through necessary heating sequence in the junction.This feasible welding, joint or similar shape have potential indications of fracture.
Summary of the invention
Therefore, purpose of the present invention just provides a kind of method of bonded block, and wherein at least one parts contains strengthened dispersion alloy, and can eliminate above-mentioned shortcoming, simultaneously its structure has been optimized.
The specific embodiment
The invention provides the method that one or two parts that a kind of utilization comprises strengthened dispersion alloy carry out combination to structure member, this method synthesis known combination technology and bear the purpose of this degree of load by pipe and expand the technology of land cross section for the intensity of combination and solder side is brought up to respectively.
The invention provides one or two parts that a kind of utilization comprises strengthened dispersion alloy to the structure member and the method for before combination, carrying out combination, this method is for bringing up to the intensity of combination and solder side respectively purpose and the application of implementation structure parts under the high temperature occasion of being born this degree of load by pipe, thereby in conjunction with preceding expansion land cross section.
The strengthened dispersion alloy of using in the method for the invention has component as follows (weight percentage %):
C is up to 0.08
Si is up to 0.7
Cr 10-25
Al 1-10
Mo 1.5-5
Mn is up to 0.4
The Fe of aequum and common impurity
Preferred situation is: contain more a spot of one or more alloying elements in the material, as hafnium, zirconium, yttrium, nitrogen, carbon and oxygen.
For the alloying element that content is lower in the described material, the present invention can be different aspect material component.
In order to use strengthened dispersion alloy, should only increase the wall thickness of structure member at the place, land.Compare with traditional method, dead load does not significantly improve, and the heat conduction does not change yet.
In conjunction with the time load calculate by formula 1:
Formula (1) σ=F/A
σ=tension force [Mpa]
F=power [N]
A=cross-sectional area [mm 2]
If producing, pressure F finishes fashionable creep rupture standard σ b, for example, if the σ under the 1100 ℃/100000h b=4Mpa, and dispersion-strengtherning in conjunction with under intensity σ=2Mpa the time, material just can not utilize traditional associated methods.
Yet, if increase the wall thickness at calmodulin binding domain CaM place, for example, A being increased 2 times, pressure F is constant, and the creep rupture standard will be dwindled 2 times, and in these cases, this just means that the creep rupture standard is just from σ b=4Mpa is reduced to σ b=2Mpa, thus just reached design standard by the intensity of the formed combination of one or two structure member that comprises strengthened dispersion alloy.
In traditional design, the σ that calculates by formula (1) bAs follows:
F＝F 1 [N]
A＝A 1 [mm 2]
Formula (1) → σ b=F 1/ A 1
Under the situation that increases wall thickness, compare with traditional method, A has increased 2 times, is drawn by formula (1):
F＝F 1 [N]
A＝2A 1 [mm 2]
Formula (1) → σ b=F 1/ 2A 1
By the many production methods as forging, HIP and turning processing so all can make treat combination as described in the wall thickness of structure member obtain to increase ideally.Under the high temperature occasion of using the structure member of being made by above-mentioned material, pipe range usually surpasses 6m.This make to forge and to become pipe jointing or be welded as the effective method of desirable structure and/or length.
Therefore, the geometry of pipe with junction wall thickness of thickening can not produce tangible influence to flowability, can not produce tangible influence to the inside and outside of pipe yet.For actual cause, on the y direction of structure member and pipe, wall thickness should increase 30mm at least respectively.Cross section should increase some, make its at least corresponding at load reduction amount be that the increase of cross-sectional area is inversely proportional to the described pressure of above-mentioned formula.
Another advantage of the method for the invention is, can with one or more by dispersion-strengtherning and/or for example the structure member made of the such other materials of stainless steel combine.
Another advantage of method involved in the present invention is, can use traditional method, and for example, traditional welding combines the forging structure parts as TIG, and this is for producing and key factor of assembling.
Utilize the possible application of the pipe of the method for the invention institute combination to be so-called radiant tube in the cracking funace.
In cracking funace or ethylene furnace, hydrocarbon is cracked into ethene, H 2C=H 2C, this is the raw material of plastics industry.
Radiant tube is used for pyrolysis furnace, and in this stove, hydrocarbon is cracked into ethene in the pipeline that can cross for hydrocarbon stream.Hydrocarbon flow through by around burner cracking takes place when being heated to the radiant tube of the sufficiently high temperature that cracking can take place, for example big in the time of 1100 ℃, will generate ethene in the pipeline.Typically, the temperature of pipe head gas is 900 ℃, and the temperature of the gas of its port of export is about 1125 ℃, and is up to 1200 ℃.

Claims (5)

1. method that is used in conjunction with one or more structure members, at least one parts comprises strengthened dispersion alloy, it is characterized in that, before combination, by forging the cross-sectional area of junction is increased.
2. the method that is used in conjunction with one or more structure members as claimed in claim 1, at least one parts comprises strengthened dispersion alloy, (the percentage by weight %) composed as follows of this strengthened dispersion alloy:
C is up to 0.08
Si is up to 0.7
Cr 10-25
Al 1-10
Mo 1.5-5
Mn is up to 0.4
The Fe of aequum and common impurity.
3. utilize that the described method of claim 1 and claim 2 makes, be higher than the structure member of using under 900 ℃ the high temperature.
4. utilize the described method of claim 1 and claim 2 structure member that make, that in pyrolysis furnace, use.
5. the structure member that utilizes the described method of claim 1 and claim 2 to make, wherein, the creep rupture standard σ=F of its junction 1/ A 1Increase with cross-sectional area increases.
CNA2005800137022A 2004-04-30 2005-04-20 Method for joining dispersion-strengthened alloy Pending CN1950171A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0401139A SE528132C2 (en) 2004-04-30 2004-04-30 Method of joining dispersion-curing alloy
SE04011391 2004-04-30

Publications (1)

Publication Number Publication Date
CN1950171A true CN1950171A (en) 2007-04-18

Family

ID=32466193

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2005800137022A Pending CN1950171A (en) 2004-04-30 2005-04-20 Method for joining dispersion-strengthened alloy

Country Status (7)

Country Link
US (1) US20080141616A1 (en)
EP (1) EP1744854A1 (en)
JP (1) JP2007535409A (en)
KR (1) KR20070005711A (en)
CN (1) CN1950171A (en)
SE (1) SE528132C2 (en)
WO (1) WO2005105362A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE528189C2 (en) * 2004-12-21 2006-09-19 Sandvik Intellectual Property Method and pipe joint for joining components comprising or made of a material which is difficult to weld
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 (en) * 2021-10-04 2023-09-26 Mecanizacion Ind Astillero S A Method for optimizing the roughness of a rolling cylinder using high-speed thermal spraying

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR695339A (en) * 1930-05-08 1930-12-13 Welding assembly process for metal pipes
US3572777A (en) * 1969-05-05 1971-03-30 Armco Steel Corp Multiple seal, double shoulder joint for tubular products
JPH09257167A (en) * 1996-03-19 1997-09-30 Daiwa House Ind Co Ltd Structure of joint part of piping and its manufacture
SE9702909L (en) * 1997-08-12 1998-10-19 Sandvik Ab Use of a ferritic Fe-Cr-Al alloy in the manufacture of compound tubes, as well as compound tubes and the use of the tubes
JPH11209850A (en) * 1998-01-23 1999-08-03 Jgc Corp Heating furnace tube, and use of heating furnace tube
SE0000002L (en) * 2000-01-01 2000-12-11 Sandvik Ab Process for manufacturing a FeCrAl material and such a mortar
TW494201B (en) * 2001-08-08 2002-07-11 Jgc Corp Connection method and structure for pipe with poor weldability for high temperature application

Also Published As

Publication number Publication date
KR20070005711A (en) 2007-01-10
WO2005105362A1 (en) 2005-11-10
US20080141616A1 (en) 2008-06-19
SE528132C2 (en) 2006-09-12
SE0401139D0 (en) 2004-04-30
EP1744854A1 (en) 2007-01-24
SE0401139L (en) 2005-10-31
JP2007535409A (en) 2007-12-06

Similar Documents

Publication Publication Date Title
CN1100890C (en) High-temperature high-strength antioxidant anticorrosive austenite alloy
CN1746328B (en) Composite material
CN1950171A (en) Method for joining dispersion-strengthened alloy
EP1515075A3 (en) Composite tube for ethylene pyrolysis furnace and methods of manufacture and joining same
CN1189259C (en) Manufacture of bimetallic composite pipe
US20080014342A1 (en) Composite tube, method of producing for a composite tube, and use of a composite tube
US10207242B2 (en) Alumina forming refinery process tubes with mixing element
KR20070086530A (en) Method of joining components, fitting and tube joint where at least one of the components comprises or is made of material difficult to weld
CN104911516B (en) Thread-type pipe joint
EP3317571A1 (en) A method of producing a tube arrangement, a tube arrangement and a furnace provided with such a tube arrangement
CN1772710A (en) Production process of composite steel pipe with cermet lining
CN111876717B (en) High-temperature-resistant, abrasion-resistant and remelting nickel-based composite material coating for fire grate segment of garbage incinerator and preparation method thereof
US20050019202A1 (en) Radiant tube in cracking furnaces
CN2547988Y (en) Bimetallic multiple-unit tube
WO2011032070A1 (en) Method of making multi-component composite metallic tube
CN101158016B (en) Nialwcr powder and preparation method thereof
CN113969386B (en) Waste incinerator boiler tube applied to working condition at temperature lower than 400 ℃ and production method thereof
CN1546720A (en) Titanium-ferrum-carbon series reactive spraying composite powder and preparation process thereof
EP1443125A1 (en) CoCrC coating for surfaces liable to consumption
CN117778863A (en) Surfacing process method for 410 Marshall stainless steel and Inconel625 nickel-based alloy
Xiangyu et al. Effect of cooling rate on microstructure and properties of TC4 by wire arc additive manufacturing
CN1442265A (en) High carbon steel rail and high manganese steel frog welding technology
CN112725011A (en) Heat transfer tube for cracking furnace and preparation method and application thereof
Petrone et al. A “Carbon-Like” Coating for Improved Coking Resistance in Pyrolysis Furnaces
EP1985722B1 (en) Plasma spray method for coating excess heat tubes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication