CN100513052C - Welding wire prepared from aluminum alloy in use for welding - Google Patents
Welding wire prepared from aluminum alloy in use for welding Download PDFInfo
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- CN100513052C CN100513052C CNB2007100252572A CN200710025257A CN100513052C CN 100513052 C CN100513052 C CN 100513052C CN B2007100252572 A CNB2007100252572 A CN B2007100252572A CN 200710025257 A CN200710025257 A CN 200710025257A CN 100513052 C CN100513052 C CN 100513052C
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- welding
- welding wire
- aluminum alloy
- aluminium
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- 238000003466 welding Methods 0.000 title claims abstract description 43
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 23
- 239000000126 substance Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 229910052725 zinc Inorganic materials 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 229910052710 silicon Inorganic materials 0.000 abstract description 4
- 229910052719 titanium Inorganic materials 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 239000004411 aluminium Substances 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 11
- 239000011777 magnesium Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000035900 sweating Effects 0.000 description 2
- 229910000755 6061-T6 aluminium alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to welding using aluminum alloy welding wire that includes Mg 4.0-6.0wt%, Mn 0.03-0.20wt%, Cr 0.05-0.10wt%, Si less than or equal to 0.25wt%, Fe is less than or equal to 0.40wt%, Cu is less than or equal to 0.20wt%, Zn is less than or equal to 0.20wt%, Be is less than or equal to 0.0003wt%, Ti 0.10-0.15wt%, and the rest is Al and other impurities. The advantages of the invention are stable technology, good extending capacity of welding wire, good welding technology, high intension, and good corrosion resistance.
Description
Technical field
The present invention relates to welding wire prepared from aluminum alloy in use for welding.
Background technology
Aluminium alloy since proportion little, intensity is high, nonmagnetic, and good machine-shaping property, cryogenic property, decay resistance and electrical and thermal conductivity performance, be widely used among various Welding Structures and the product, be specially adapted to weight is required very harsh aerospace vehicle.The characteristic of aluminium alloy welding is mainly reflected in the following aspects: 1. the affinity of aluminium and oxygen is very big, and aluminium very easily combines with oxygen and generates closely solid Al in air
2O
3Film hinders the fusing of parent metal and good combination each other, and easily causes slag inclusion.And oxide-film also can adsorption moisture, can impel weld seam to form defectives such as pore during welding, thereby reduce the mechanical property of welding point.2. the thermal conductivity of aluminium and aluminium alloy, specific heat capacity, the latent heat of fusion etc. are all very big, and in welding process, a large amount of heat energy is passed to parent metal inside rapidly, so will consume more heat than steel when welding of aluminum and aluminium alloy.3. high-temp plastic is poor, and linear expansion coefficient is big.When therefore welding some aluminium alloy, often owing to excessive contraction internal stress produces buckling deformation and fire check.4. liquid aluminium can dissolve a large amount of hydrogen, easily assembles forming pore in quick cooling of welding pool and process of setting in weld seam.5. at high temperature the intensity of aluminium is very low, to such an extent as to can not the supporting liquid metal and make appearance of weld bad, even form (or burning) defective of subsiding.6. contain lower boiling alloying element such as magnesium, zinc etc. in some aluminium alloy, these elements very easily evaporate under the effect of thermal-flame or electric arc, scaling loss, thereby have changed the chemical composition of weld metal, have also reduced the performance of welding point simultaneously.7. when welding heat-treatable strengthened aluminium alloy, because the influence of sweating heat can make parent metal closely stitch the mechanical properties decrease at some position, district.Because component segregation usually takes place or separates out the impurity phase, thereby the etch resistant properties in this district is descended in the influence of sweating heat on crystal boundary.
When aluminium alloy adopts fusion welding method to weld, the subject matter that faces have pore, HOT CRACK FOR WELDING P, welding point and mother metal in the weld seam etc. epistasis etc., aluminium alloy has bigger welding difficulty than common metal as can be seen.
Summary of the invention
The object of the present invention is to provide the aluminium alloy welding wire that welding performance is stable, intensity is high, good corrosion is arranged.
Realize that the above-mentioned purpose technical scheme is: a kind of welding wire prepared from aluminum alloy in use for welding, it is characterized in that chemical composition and mass percent (%) consist of: Mg:4.0～6.0, Mn:0.03～0.10, Cr:0.05～0.10, Si :≤0.25, Fe :≤0.40, Cu :≤0.20, Zn :≤0.20, Be :≤0.0003, Ti:0.10～0.15, surplus are Al and other unavoidable impurities.
Add alloying elements such as suitable Si, Cu, Mn, Mg, Cr, Zn, Ti in the welding wire, thereby make in weld metal the sediment particle more little, evenly spread on the crystal boundary manyly more, improve the intensity of welding point.It specifically acts on:
1. silicon: adding silicon in the aluminium has certain invigoration effect.
2. copper: certain solid solution strengthening effect is arranged.
3, manganese: manganese can stop the recrystallization process of aluminium alloy, improves recrystallization temperature, and energy is the refinement recrystal grain significantly, and by MnAl6 dissolved impurity iron, reduces the adverse effect of iron.
4. magnesium: magnesium is significantly to the invigoration effect of aluminium, the magnesium of every increase by 1%, the tensile strength 34MP that approximately raises.In the industrial wrought aluminium alloy of major part, the content of magnesium is all less than 6%, and silicone content is also low, good weldability, and corrosion stability, and moderate strength is arranged.
5. chromium: hinder the forming core and the growth process of crystallization again, alloy is had certain invigoration effect, can also improve alloy toughness and reduce stress corrosion opening cracking maleate sensitivity.
6. zinc: zinc joins separately in the aluminium, and the raising to intensity of aluminum alloy under deformation condition is very limited, also has the stress corrosion cracking tendency simultaneously.Thereby in aluminium, add zinc and magnesium simultaneously, form hardening constituent
Mg/Zn2 produces tangible invigoration effect to alloy.
7. titanium: titanium forms TiAl2 mutually with aluminium, and the non-spontaneous core when becoming crystallization plays refinement cast sturcture and seam organization.The critical content of titanium is about 0.15%, if reduce to 0.01% when having boron to exist.
Aluminium alloy welding wire preparation methods of the present invention is identical with the prior art for preparation method.
Aluminium alloy welding wire of the present invention has following advantage:
1, stable being easy to of this welding wire aluminium alloy smelting process realizes that the drawing welding wire function admirable satisfies the solder technology requirement of industries such as motor car, pressure vessels for the chemical industry, war industry's production, shipbuilding, aviation.
2, welding wire of the present invention has good welding technological properties, welding point have intensity height, malleability good, good corrosion resistance arranged.
The specific embodiment
Below in conjunction with embodiment the present invention is further described.
Specimen test is selected the 6061T6 aluminium sheet for use.Make growth 350mm, wide 150mm, machined groove and root face in the longitudinal direction.It is 30% that gas is selected Ar for use, and He is 70% mist.Select the welding wire of diameter 1.2mm of the present invention for use, its chemical composition and mass percent (%) consist of: Si:0.18, Fe:0.25, Cu:0.09, Mn:0.10, Mg:5.10, Cr:0.07, Zn:0.08, Ti:0.12, surplus is aluminium and other unavoidable impurities.The welding bead welding method: wlding electric current (I/A) 160～180, voltage (U/V) 24, current polarity DCRP, speed of welding vh (mm/s) 9 carries out 100% range estimation, X ray, penetrant inspection to this welded specimen.The visual inspection specimen surface is shaped good, and the penetrant inspection operating temperature is 20 ℃, and ZT-YS bleeding agent time of penetration is greater than 10min, and ZT-WL developer time of developing is greater than 10min, and sample reaches I level requirement among the EN1289.X-ray inspection, conditions of exposure are 5mA, 2min, and focal length FFA=600mm, fmin=120mm, sample reach B level requirement among the EN30042.Tension test: with the sample of the suitable stretching experiment of sample production one-tenth, the tensile strength sigma of sample
M1=228MPa, σ
M2=223MPa, fracture site is on mother metal.Bend test: with the sample of the suitable crooked experiment of sample production one-tenth, the pressure head diameter is 42mm in the experiment, and 2 faces are curved, and 2 back ofs the body are curved, and 180 ° of angle of bend pass.Experiment of macroscopic view metallographic and the experiment of microcosmic metallographic: macroscopical metallograph amplifies 2.5 times, the microcosmic metallograph amplifies 400 times, and clearly the side at sample erodes away melt run, heat affected area and mother metal, sample metallographic flawless, weld defect such as lack of penetration reach the requirement of EN30042 standard B level.
Claims (1)
1. welding wire prepared from aluminum alloy in use for welding, its chemical composition comprises Be, it is characterized in that chemical composition and mass percent (%) consist of: Mg:4.0～6.0, Mn:0.03～0.10, Cr:0.05～0.10, Si :≤0.25, Fe :≤0.40, Cu :≤0.20, Zn :≤0.20, Be :≤0.0003, Ti:0.10～0.15, surplus is that Al and other inevitably are mingled with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100252572A CN100513052C (en) | 2007-07-20 | 2007-07-20 | Welding wire prepared from aluminum alloy in use for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100252572A CN100513052C (en) | 2007-07-20 | 2007-07-20 | Welding wire prepared from aluminum alloy in use for welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092007A CN101092007A (en) | 2007-12-26 |
| CN100513052C true CN100513052C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100252572A Expired - Fee Related CN100513052C (en) | 2007-07-20 | 2007-07-20 | Welding wire prepared from aluminum alloy in use for welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100513052C (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10654135B2 (en) | 2010-02-10 | 2020-05-19 | Illinois Tool Works Inc. | Aluminum alloy welding wire |
| CN101824567A (en) * | 2010-05-21 | 2010-09-08 | 桂林市银箭焊接材料有限公司 | Al-Mg alloy welding wire and preparation method thereof |
| CN102500853A (en) * | 2011-10-14 | 2012-06-20 | 兰州理工大学 | Cold metal transfer connection method of aluminum/steel dissimilar metal |
| CN102699564B (en) * | 2012-04-27 | 2015-04-22 | 浙江宇光铝材有限公司 | High-performance aluminum alloy automatic welding wire |
| CN103008906B (en) * | 2012-12-04 | 2015-05-27 | 中国人民解放军装甲兵工程学院 | Welding wire for preparation of aluminum-based wear-resistant coating through magnetron deposition formation |
| CN103056546A (en) * | 2013-02-03 | 2013-04-24 | 刘美福 | Welding wire for welding titanium alloy and pure aluminum plate in argon tungsten-arc welding (TIG) method |
| CN103273214B (en) * | 2013-05-17 | 2015-12-23 | 航天材料及工艺研究所 | A kind of high-strength aluminium zinc-magnesium scandium alloy welding wire and preparation method thereof |
| CN103695735A (en) * | 2013-12-20 | 2014-04-02 | 广西博士海意信息科技有限公司 | Aluminum alloy welding wire and preparation method thereof |
| CA2931018C (en) * | 2014-01-22 | 2018-12-11 | Illinois Tool Works Inc. | Aluminium alloy welding consumable and method for metallurgical bonding |
| CN104384748A (en) * | 2014-09-18 | 2015-03-04 | 兰州威特焊材炉料有限公司 | TIG/MIG aluminum welding wire and preparation method thereof |
| JP6719345B2 (en) * | 2016-09-13 | 2020-07-08 | 株式会社神戸製鋼所 | Method for manufacturing aluminum joined body |
| CN106695165A (en) * | 2016-12-29 | 2017-05-24 | 安徽华众焊业有限公司 | Aluminum magnesium alloy welding flux and preparation method thereof |
| CN108856983A (en) * | 2018-07-10 | 2018-11-23 | 湖南机电职业技术学院 | A kind of cold metal transfer welding procedure |
| CN109108436A (en) * | 2018-10-16 | 2019-01-01 | 北京星航机电装备有限公司 | A kind of repair method finishing aluminium alloy castings defect |
| CN110181193B (en) * | 2019-05-17 | 2021-01-08 | 江西理工大学 | Novel Al-Mg-Ti alloy welding wire and preparation method thereof |
| CN112440027B (en) * | 2020-11-20 | 2021-11-12 | 迈特李新材料(深圳)有限公司 | Aluminum-based composite material welding wire for electric arc additive manufacturing and preparation method thereof |
| CN114012305A (en) * | 2021-11-05 | 2022-02-08 | 江苏豪然喷射成形合金有限公司 | Welding wire for spray forming of aluminum-lithium alloy and preparation method thereof |
| CN114227060A (en) * | 2021-12-27 | 2022-03-25 | 广东凤铝铝业有限公司 | Method for improving welding performance of aluminum profile for new energy automobile |
| CN117620517A (en) * | 2023-12-12 | 2024-03-01 | 西南交通大学 | Rare earth element modified aluminum alloy welding wire for laser welding and preparation method thereof |
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2007
- 2007-07-20 CN CNB2007100252572A patent/CN100513052C/en not_active Expired - Fee Related
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| CN101092007A (en) | 2007-12-26 |
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