CN101323065A - Self-fluxing aluminum solder and method for preparing the same - Google Patents
Self-fluxing aluminum solder and method for preparing the same Download PDFInfo
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- CN101323065A CN101323065A CNA2008101405156A CN200810140515A CN101323065A CN 101323065 A CN101323065 A CN 101323065A CN A2008101405156 A CNA2008101405156 A CN A2008101405156A CN 200810140515 A CN200810140515 A CN 200810140515A CN 101323065 A CN101323065 A CN 101323065A
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Abstract
The invention relates to a self-flux aluminum solder that is composed of aluminum or aluminum alloy powder, and single or diverse metal halide powder, and mainly applied to the brazing of aluminum or copper, or the alloy. The invention is mainly characterized in that aluminum or aluminum alloy powder and single or diverse metal halide powder are directly pressed into wires or tubes for one time, or the wires can be winded or the tubes can be cut into rings. The self-flux aluminum solder has the advantages that, as active materials are contained, the problems of moisture absorption caused by the flux-cored aluminum welding wire composed of external alloy and core additive, the fallout of the core active materials during the using course and the uneven composition of the core additive and the external alloy can be avoided.
Description
Technical field
The invention belongs to technical field of soldering materials, particularly a kind ofly be used for the soldering of aluminium or copper and alloy thereof from brazing flux almit and preparation method thereof.
Background technology
The application of aluminium in industrial production and social life is increasingly extensive, because little, the conduction of proportion, thermal conductivity are good, castability and machining property are good, the important function of aluminium in the modern industry material is irreplaceable.For weight reduction, improve effect, strengthen attractive in appearance, with aluminium for copper, obtained gratifying achievements for steel with aluminium.
The welding of aluminium is difficulty relatively, is difficult to be welded on the application that has limited aluminium to a certain extent.The problem that exists in the aluminium welding mainly is because the strong oxidizing property of aluminium causes, mainly removes the oxide-film of aluminium and aluminum alloy surface at present by the soldering auxiliary agent.
In the patent of metal core aluminium welding wire of U.S. Huobat Brother Co. application and forming method thereof, be to make tubulose with the aluminum strip band, inside accommodates the core of nitrogen manganese.The patent of medicine core aluminium weld-ring that is used for the aluminium and aluminium alloy pipe joint brazing of Harbin Institute of Technology's application and preparation method thereof adopts the aluminium alloy band is made tubulose, makes medicine core aluminium weld-ring again, core KAlF
4And K
3AlF
6, silica flour forms.The aluminium alloy band is made tubulose make explosive core aluminium welding wire, effect by active material more helps forming fine and close weld seam than solid welding wire, but the easy moisture absorption in the slit of this kind flux-cored wire, be mingled with, and cause being scattered of core active material and influence the effect of welding.Selected suitable aluminum alloy materials and soldering auxiliary agent welds with suitable composition mode in certain proportion, and be very crucial for the extensive use that obtains good welding point and aluminium.
Summary of the invention
The objective of the invention is to overcome above-mentioned technological deficiency and provide a kind of can solve core active material in the caused moisture absorption of explosive core aluminium welding wire that outer layer alloys and core auxiliary agent form, the use be scattered and the core auxiliary agent is formed uniform inadequately a kind of from the brazing flux almit with outer layer alloys.
For realizing purpose of the present invention, existing according to following technical scheme.A kind of from the brazing flux almit, it is by aluminum or aluminum alloy powder and one or more metal halide powder constituents, adds an amount of silicon and can obtain good wetability and flowability in aluminium; Add an amount of zinc, can reduce the fusing point of aluminium; Add an amount of copper or silver, can improve the intensity of alloy; For improving the combination property of aluminum or aluminum alloy, titanium, boron and rare earth have been added.Wherein Al alloy powder comprises by weight percentage and can be: 1, aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Titanium 0--0.3%.2, aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Boron 0--0.3%.3, aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Rare earth 0--0.3%.4, aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Titanium--0.1%; Boron--0.1%; Rare earth--0.1%.The metal halide powder is: any among aluminum fluoride, potassium fluoride, cesium fluoride, the J201.Wherein multiple metal halide comprises by weight percentage: aluminum fluoride 25--60%; Potassium fluoride 0--45%; Cesium fluoride 0--40%; Zinc fluoride 0--5%; J2010--50%.Halide J201 is meant the mixture of zinc chloride, sodium fluoride, potassium chloride, lithium chloride, and wherein wt percentage is: zinc chloride 8%, sodium fluoride 10%, potassium chloride 50%, lithium chloride 32%.
Preparation method of the present invention is:
1), adopt inert gas argon gas or nitrogen that the uniform aluminum or aluminum alloy of the good melting of proportioning is atomized into powder, to reduce the oxygen content of last aluminum or aluminum alloy powder, dry then screening final vacuum packages spare;
2), with the metal halide powder, behind the selected appropriate proportioning, dry mixed is ground, the screening final vacuum packages spare;
3), with above-mentioned through 1), 2) the aluminum or aluminum alloy powder of selected granularity and the metal halide powder of one or more selected granularities, fully mix vacuum-packed standby under the drying regime;
4), the metal halide powder of vacuum-packed aluminum or aluminum alloy powder and one or more selected granularities is inserted in the recipient mould, directly be pressed into silk or pipe in heating or the condition that do not heat, thread diameter range diameter range is 1.2～5mm next time; Can again filament winding system maybe be cut into ring with pipe as required, be of the present invention from the brazing flux almit.
The specific embodiment:
Example 1: the content of aluminium is 75%, and multiple metal halide is by weight percentage: aluminum fluoride 8%; Potassium fluoride 5%; Cesium fluoride 5%; Zinc fluoride 1.2%; J2015.8%.
Example 2: the Al alloy powder percentage by weight is: aluminium 16%; Silicon 8%; Zinc 32%; Copper 12%; Silver 11.76%; Titanium 0.24%; Or aluminium 56%; Silicon 4%; Zinc 8%; Copper 6.4%; Silver 5.36%; Titanium 0.24%; Multiple metal halide is by weight percentage: aluminum fluoride 6%; Potassium fluoride 4%; Cesium fluoride 4%; Zinc fluoride 1%; J201 5%.
Example 3: the Al alloy powder percentage by weight is: aluminium 16%; Silicon 8%; Zinc 32%; Copper 12%; Silver 11.76%; Boron 0.24%; Or aluminium 56%; Silicon 4%; Zinc 8%; Copper 6.4%; Silver 5.36%; Boron 0.24%; Multiple metal halide is by weight percentage: aluminum fluoride 6%; Potassium fluoride 4%; Cesium fluoride 4%; Zinc fluoride 1%; J201 5%.
Example 4: the Al alloy powder percentage by weight is: aluminium 16%; Silicon 8%; Zinc 32%; Copper 12%; Silver 11.76%; Rare earth 0.24%; Or aluminium 56%; Silicon 4%; Zinc 8%; Copper 6.4%; Silver 5.36%; Rare earth 0.24%; Multiple metal halide is by weight percentage: aluminum fluoride 6%; Potassium fluoride 4%; Cesium fluoride 4%; Zinc fluoride 1%; J201 5%.
Example 5: the Al alloy powder percentage by weight is: aluminium 16%; Silicon 8%; Zinc 32%; Copper 12%; Silver 11.76%; Titanium 0.1%; Boron 0.1%; Rare earth 0.04%; Or aluminium 56%; Silicon 4%; Zinc 8%; Copper 6.4%; Silver 5.36%; Titanium 0.1%; Boron 0.1%; Rare earth 0.04%; Multiple metal halide is by weight percentage: aluminum fluoride 6%; Potassium fluoride 4%; Cesium fluoride 4%; Zinc fluoride 1%; J201 5%.
Preparation method of the present invention may further comprise the steps:
Adopt inert gas argon gas or nitrogen that the uniform aluminum or aluminum alloy of the good melting of proportioning is atomized into powder, to reduce the oxygen content of last aluminum or aluminum alloy powder, dry then screening final vacuum packages spare; With the metal halide powder, behind the selected appropriate proportioning, dry mixed is ground, and the screening final vacuum packages spare; With the aluminum or aluminum alloy powder of above-mentioned selected granularity and the metal halide powder of one or more selected granularities, fully mix vacuum-packed standby under the drying regime; The metal halide powder of vacuum-packed aluminum or aluminum alloy powder and one or more selected granularities is inserted in the recipient mould, directly be pressed into silk or pipe in the condition that heats or do not heat next time, thread diameter range diameter range is 1.2～5mm; For tubulose from the brazing flux almit, the moving extrusion of its technical process and Composite Double is similar, ingot casting core trip is motionless, the hollow pressure ram pressurizes to ingot casting, the head of the solder flux pressue device ingot casting of riving, ingot casting is seam again in extrusion die cavity, and not needing to pressurize during extruding that different is is pressed into ingot casting inside with solder flux again, and powder is pressed moulding and is extruded into hollow tubular from the brazing flux almit; Easy to operate and raising welding efficiency can be processed into ring from the brazing flux almit with thread or tubulose for welding process.Turn to ring for thread thread can the heating from the brazing flux almit.For tubulose from the brazing flux almit can sawing or car be cut into ring, this method can be made special-shaped rings such as circular or square according to the shape of pipe.Performance from the brazing flux almit:
When the brazing flux almit is used for welding of aluminum or copper and alloy thereof, have easy to operate, welding efficiency is high, the characteristics of stable performance.Be used for automatic brazing making weld-ring, can improve welding efficiency greatly from the brazing flux almit; Be cut into opposite sex ring again by making pipe, especially be fit to be applied to joint geometry complexity, the aluminium of mother metal brazing manufacturability difference or the welding of copper alloy from the brazing flux almit.
Examination is used in producing through domestic certain refrigeration automobile parts corporation from the brazing flux almit that the present invention develops, and nonhygroscopic, welding technological properties is good, and steady quality is reliable, now promotes the use of.
Claims (10)
1, a kind of from the brazing flux almit, it is by aluminum or aluminum alloy powder and one or more metal halide powder constituents, it is characterized in that the percentage by weight of aluminum or aluminum alloy powder accounts for 70--98%; The percentage by weight of multiple metal halide accounts for 2--30%.
2, according to claim 1 a kind of from the brazing flux almit, it is characterized in that the percentage by weight of aluminium accounts for 56--99% or 2--30% in the Al alloy powder.
3, according to claim 1 a kind of from the brazing flux almit, it is characterized in that Al alloy powder comprises by weight percentage: aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Titanium 0--0.3%.
4, according to claim 1 a kind of from the brazing flux almit, it is characterized in that Al alloy powder comprises by weight percentage: aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Boron 0--0.3%.
5, according to claim 1 a kind of from the brazing flux almit, it is characterized in that Al alloy powder comprises by weight percentage: aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Rare earth 0--0.3%.
6, according to claim 1 a kind of from the brazing flux almit, it is characterized in that Al alloy powder comprises by weight percentage: aluminium 56.5--99% or 2--30%; Silicon 0--13%; Zinc 0--98%; Copper 0--25%; Silver 0--15%; Titanium 0--0.1%; Boron 0--0.1%; Rare earth 0--0.1%.
7, according to claim 1 a kind of from the brazing flux almit, it is characterized in that described a kind of metal halide powder is: any among aluminum fluoride, potassium fluoride, cesium fluoride, the J201.
8, according to claim 7 from the brazing flux almit, it is characterized in that halide J201 is meant the mixture of zinc chloride, sodium fluoride, potassium chloride, lithium chloride, wherein wt percentage is: zinc chloride 8%, sodium fluoride 10%, potassium chloride 50%, lithium chloride 32%.
9, according to claim 1 a kind of from the brazing flux almit, it is characterized in that multiple halide comprises by weight percentage: aluminum fluoride 25--60%; Potassium fluoride 0--45%; Cesium fluoride 0--40%; Zinc fluoride 0--5%; J2010--50%.
10, a kind of preparation method from the brazing flux almit according to claim 1 is characterized in that:
1), adopt inert gas argon gas or nitrogen that the uniform aluminum or aluminum alloy of the good melting of proportioning is atomized into powder, to reduce the oxygen content of last aluminum or aluminum alloy powder, dry then screening final vacuum packages spare;
2), with the metal halide powder, behind the selected appropriate proportioning, dry mixed is ground, the screening final vacuum packages spare;
3), with above-mentioned through 1), 2) the aluminum or aluminum alloy powder of selected granularity and the metal halide powder of one or more selected granularities, fully mix vacuum-packed standby under the drying regime;
4), the metal halide powder of vacuum-packed aluminum or aluminum alloy powder and one or more selected granularities is inserted in the recipient mould, directly be pressed into silk or pipe in heating or the condition that do not heat, thread diameter range diameter range is 1.2～5mm next time; Can again filament winding system maybe be cut into ring with pipe as required, be of the present invention from the brazing flux almit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101405156A CN101323065A (en) | 2008-07-08 | 2008-07-08 | Self-fluxing aluminum solder and method for preparing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101405156A CN101323065A (en) | 2008-07-08 | 2008-07-08 | Self-fluxing aluminum solder and method for preparing the same |
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| CN101323065A true CN101323065A (en) | 2008-12-17 |
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| CNA2008101405156A Pending CN101323065A (en) | 2008-07-08 | 2008-07-08 | Self-fluxing aluminum solder and method for preparing the same |
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Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486137B (en) * | 2008-12-25 | 2010-12-01 | 天津大学 | Novel insoluble aluminum brazing flux without corrosion and preparation method thereof |
| CN102225496A (en) * | 2011-06-21 | 2011-10-26 | 郑州机械研究所 | Preparation method of zinc-aluminium seamless flux-cored wire |
| CN102284788A (en) * | 2011-07-14 | 2011-12-21 | 江苏金鑫电器有限公司 | Pressure deposition welding method for aluminum and copper dissimilar metals |
| CN102528316A (en) * | 2012-01-05 | 2012-07-04 | 力创(台山)电子科技有限公司 | Welding ring containing brazing flux for welding aluminum and aluminum alloy and manufacturing method thereof |
| CN102941342A (en) * | 2012-12-04 | 2013-02-27 | 郑州机械研究所 | Method for pressing self-brazing agent aluminum welding ring and special cold-pressing die and sintering die thereof |
| CN103331531A (en) * | 2013-06-20 | 2013-10-02 | 中国人民解放军装甲兵工程学院 | Brazing rod for repairing damages to thin aluminum alloy plate and using method of brazing rod |
| CN103551763A (en) * | 2013-11-25 | 2014-02-05 | 沈阳航天新光集团有限公司 | Brazing flux for welding LD2 aluminum alloy and preparation method of brazing flux |
| CN103551757A (en) * | 2013-10-31 | 2014-02-05 | 北京工业大学 | Aluminum-silicon alloy seamless flux-cored wire for brazing as well as preparation and application |
| CN103612026A (en) * | 2013-11-08 | 2014-03-05 | 上海龙烁焊材有限公司 | Composite solder flux-cored aluminum welding wire and preparation method thereof |
| CN103612032A (en) * | 2013-11-08 | 2014-03-05 | 上海龙烁焊材有限公司 | Sheath-coated flux-cored brazing wire and production method thereof |
| CN103659054A (en) * | 2013-10-25 | 2014-03-26 | 天津大学 | Selffluxing brazing alloy suitable for brazing of thin aluminum plates and aluminum alloys and preparation method |
| CN104227008A (en) * | 2014-09-23 | 2014-12-24 | 西安瑞鑫科金属材料有限责任公司 | Method for preparing titanium-zirconium-copper-nickel alloy braze powder |
| CN104625482A (en) * | 2013-11-13 | 2015-05-20 | 青岛润鑫伟业科贸有限公司 | Hard brazing flux for brazing of aluminum in furnace |
| CN104874800A (en) * | 2015-05-27 | 2015-09-02 | 优美科科技材料（苏州）有限公司 | Manufacturing method for pressing powder into welded ring |
| CN104952508A (en) * | 2014-03-28 | 2015-09-30 | 比亚迪股份有限公司 | Metal wire used for solar cell back electrode and preparation method thereof, back electrode and preparation method thereof, solar cell sheet and cell module |
| CN105081601A (en) * | 2014-05-06 | 2015-11-25 | 烟台市固光焊接材料有限责任公司 | Preparation method for low-temperature copper aluminum solder and low-temperature copper aluminum solder |
| CN105108371A (en) * | 2015-09-23 | 2015-12-02 | 苏州中焊超微复合材料有限公司 | Environment-friendly type self-brazing brazing filler metal |
| CN106238956A (en) * | 2016-08-30 | 2016-12-21 | 郑州机械研究所 | A kind of low melting point brazing material, preparation method and applications |
| CN106392367A (en) * | 2016-11-22 | 2017-02-15 | 江苏阳明船舶装备制造技术有限公司 | Solder for brazing red copper and graphite and brazing method |
| CN106624437A (en) * | 2016-11-30 | 2017-05-10 | 安徽华众焊业有限公司 | Corrosion-resistant aluminum alloy solder |
| CN106736006A (en) * | 2016-11-30 | 2017-05-31 | 安徽华众焊业有限公司 | Zn Al Cu base solders and preparation method thereof |
| CN106736007A (en) * | 2016-11-30 | 2017-05-31 | 安徽华众焊业有限公司 | Aluminium base solder |
| CN106736008A (en) * | 2016-11-30 | 2017-05-31 | 安徽华众焊业有限公司 | Parent metal of corrosion-resisting aluminium containing Ge and preparation method thereof |
| CN107030412A (en) * | 2017-05-17 | 2017-08-11 | 常州鑫力航金属新材料有限公司 | A kind of aluminium alloy brazing it is environmentally friendly corrosion-free from braze-welding rings and preparation method thereof |
| CN107052615A (en) * | 2016-11-30 | 2017-08-18 | 安徽华众焊业有限公司 | Copper aluminium welding aluminium alloy solder |
| CN111299897A (en) * | 2020-03-02 | 2020-06-19 | 浙江亚通焊材有限公司 | Preparation method of flexible welding wire of brittle aluminum-silicon-copper brazing filler metal |
| CN111633355A (en) * | 2020-05-27 | 2020-09-08 | 常州鑫力航金属新材料有限公司 | Environment-friendly corrosion-free self-brazing solder for brazing aluminum alloy and copper alloy and preparation method thereof |
| CN112792478A (en) * | 2021-01-06 | 2021-05-14 | 李珮豪 | Self-fluxing aluminum brazing filler metal plate and manufacturing method thereof |
| CN112958944A (en) * | 2021-02-07 | 2021-06-15 | 上海华峰铝业股份有限公司 | Aluminum alloy brazing powder and preparation method and application thereof |
| CN113305467A (en) * | 2021-05-31 | 2021-08-27 | 广东省科学院中乌焊接研究所 | Aluminum brazing flux and preparation method thereof |
-
2008
- 2008-07-08 CN CNA2008101405156A patent/CN101323065A/en active Pending
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486137B (en) * | 2008-12-25 | 2010-12-01 | 天津大学 | Novel insoluble aluminum brazing flux without corrosion and preparation method thereof |
| CN102225496A (en) * | 2011-06-21 | 2011-10-26 | 郑州机械研究所 | Preparation method of zinc-aluminium seamless flux-cored wire |
| CN102284788A (en) * | 2011-07-14 | 2011-12-21 | 江苏金鑫电器有限公司 | Pressure deposition welding method for aluminum and copper dissimilar metals |
| CN102528316A (en) * | 2012-01-05 | 2012-07-04 | 力创(台山)电子科技有限公司 | Welding ring containing brazing flux for welding aluminum and aluminum alloy and manufacturing method thereof |
| CN102528316B (en) * | 2012-01-05 | 2013-07-10 | 力创(台山)电子科技有限公司 | Welding ring containing brazing flux for welding aluminum and aluminum alloy and manufacturing method thereof |
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| CN103659054B (en) * | 2013-10-25 | 2015-11-18 | 天津大学 | Be applicable to self-fluxing agent material and the preparation method of the soldering of thin plate Al and Alalloy |
| CN103551757A (en) * | 2013-10-31 | 2014-02-05 | 北京工业大学 | Aluminum-silicon alloy seamless flux-cored wire for brazing as well as preparation and application |
| CN103551757B (en) * | 2013-10-31 | 2015-11-11 | 北京工业大学 | Soldering alusil alloy seamless flux-cored wire, preparations and applicatio |
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| CN104625482A (en) * | 2013-11-13 | 2015-05-20 | 青岛润鑫伟业科贸有限公司 | Hard brazing flux for brazing of aluminum in furnace |
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| CN104874800A (en) * | 2015-05-27 | 2015-09-02 | 优美科科技材料（苏州）有限公司 | Manufacturing method for pressing powder into welded ring |
| CN105108371A (en) * | 2015-09-23 | 2015-12-02 | 苏州中焊超微复合材料有限公司 | Environment-friendly type self-brazing brazing filler metal |
| CN106238956A (en) * | 2016-08-30 | 2016-12-21 | 郑州机械研究所 | A kind of low melting point brazing material, preparation method and applications |
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| CN106736008A (en) * | 2016-11-30 | 2017-05-31 | 安徽华众焊业有限公司 | Parent metal of corrosion-resisting aluminium containing Ge and preparation method thereof |
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| CN106736006A (en) * | 2016-11-30 | 2017-05-31 | 安徽华众焊业有限公司 | Zn Al Cu base solders and preparation method thereof |
| CN107052615A (en) * | 2016-11-30 | 2017-08-18 | 安徽华众焊业有限公司 | Copper aluminium welding aluminium alloy solder |
| CN106624437A (en) * | 2016-11-30 | 2017-05-10 | 安徽华众焊业有限公司 | Corrosion-resistant aluminum alloy solder |
| CN106624437B (en) * | 2016-11-30 | 2018-10-30 | 安徽华众焊业有限公司 | Anticorrosion aluminium solder |
| CN107030412A (en) * | 2017-05-17 | 2017-08-11 | 常州鑫力航金属新材料有限公司 | A kind of aluminium alloy brazing it is environmentally friendly corrosion-free from braze-welding rings and preparation method thereof |
| CN111299897A (en) * | 2020-03-02 | 2020-06-19 | 浙江亚通焊材有限公司 | Preparation method of flexible welding wire of brittle aluminum-silicon-copper brazing filler metal |
| CN111633355A (en) * | 2020-05-27 | 2020-09-08 | 常州鑫力航金属新材料有限公司 | Environment-friendly corrosion-free self-brazing solder for brazing aluminum alloy and copper alloy and preparation method thereof |
| CN111633355B (en) * | 2020-05-27 | 2022-04-15 | 常州鑫力航金属新材料有限公司 | Environment-friendly corrosion-free self-brazing solder for brazing aluminum alloy and copper alloy and preparation method thereof |
| CN112792478A (en) * | 2021-01-06 | 2021-05-14 | 李珮豪 | Self-fluxing aluminum brazing filler metal plate and manufacturing method thereof |
| CN112958944A (en) * | 2021-02-07 | 2021-06-15 | 上海华峰铝业股份有限公司 | Aluminum alloy brazing powder and preparation method and application thereof |
| CN113305467A (en) * | 2021-05-31 | 2021-08-27 | 广东省科学院中乌焊接研究所 | Aluminum brazing flux and preparation method thereof |
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