CN104551450B - Caesium rubidium brazing flux containing gallium oxide - Google Patents
Caesium rubidium brazing flux containing gallium oxide Download PDFInfo
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- CN104551450B CN104551450B CN201410752345.2A CN201410752345A CN104551450B CN 104551450 B CN104551450 B CN 104551450B CN 201410752345 A CN201410752345 A CN 201410752345A CN 104551450 B CN104551450 B CN 104551450B
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- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/361—Alumina or aluminates
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- Inorganic Chemistry (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
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Abstract
A kind of caesium rubidium brazing flux containing gallium oxide, belongs to the brazing material field of nonmetallic materials class.It is characterized in that by molal quantity proportioning in terms of a mole be: the rubidium fluoride RbF (RbF) of 0.12 mole～0.5 mole, the cesium fluoride (CsF) of 0.12 mole～0.5 mole, the aluminium oxide (Al of 0.001 mole～0.2 mole2O3), the potassium fluoride (KF) of 0.001 mole～0.02 mole, the gallium oxide (Ga of 0.0001 mole～0.02 mole2O3), 0.159 mole～the aluminium fluoride (AlF of 0.4793).The present invention can meet " aluminum bronze ", " aluminum steel " and " aluminum aluminum " brazing requirements simultaneously and have high activity.
Description
Technical field
The invention belongs to the brazing material field of nonmetallic materials class, be specifically related to one can brazed aluminum-steel, Solder for Al-Cu Joint Welding and
The caesium rubidium brazing flux containing gallium oxide of aluminum-aluminum.
Background technology
Along with the fast development of Aero-Space, track traffic, energy industry and Refrigeration Technique, except aluminum-constructed of aluminium is a large amount of
Outside employing, aluminium alloy gets more and more with the application demand of the composite construction of steel with copper, aluminium alloy, and Solder for Al-Cu Joint Welding, aluminum-bimetal copper-steel are multiple
The structure of condensation material is widely used in fields such as hardware, power station, household electrical appliances.But, up to now, aluminum-
" connection " problem of bimetal copper-steel composite, always one difficult problem the most unsolved.
The applicant has carried out literature search, in published Chinese patent literature, as CN201310445105.3 pushes away
The New type soldering flux of aluminium soldering " a kind of rustless steel with " recommended, its constituent includes: ptfe aluminum potassium+potassium hexafluoroaluminate
(KAlF4+K3AlF6) eutectic, zinc fluoride (ZnF2), copper fluoride (CuF2), stannic fluoride (SnF4).Although this brazing flux is by adding
Add zinc fluoride, copper fluoride and stannic fluoride to KAlF4+K3AlF6Be modified, thus reach can soldering rustless steel and aluminum, but
The mechanical property not providing solder that this brazing flux institute " mates " and soldered fitting in the technological documents such as its description is (the most anti-
Tensile strength or shearing strength).Additionally, in the technological documents such as its description the most not mentioned whether can soldering Solder for Al-Cu Joint Welding foreign material,
Therefore its exist many have much room for improvement part.CN201410076059.9 disclose one " can soldering aluminum steel and aluminum bronze containing caesium
The brazing flux of rubidium ", it is characterized in that by molal quantity proportioning: 0.01 mole (i.e. mol, lower same)～the rubidium fluoride RbF (RbF) of 0.56 mole,
The cesium fluoride (CsF) of 0.15 mole～0.58 mole, the aluminium hydroxide (Al (OH) of 0.001 mole～0.25 mole3), 0.001
Mole～the potassium fluoride (KF) of 0.2 mole, the gallium fluoride (GaF of 0.002 mole～0.05 mole3), 0.001 mole～0.025
Mole lithium fluoride (LiF), the boron fluoride (BF of 0.001 mole～0.025 mole3), surplus is aluminium fluoride (AlF3).Wherein
GaF3With LiF, BF3Between mol ratio be GaF3LiF BF3 =211.But its formula is the most complicated, quality control during production
Make extremely difficult, still have much room for improvement.
" soldering " is to have the welding method of marked difference with " melting ".For foreign material (i.e. two kinds different materials
Material) connection, soldering more advantage.During soldering, materials to be welded (i.e. mother metal) is infusible, and dependence is first melted, ratio is welded
The low liquid solder of Material Melt temperature on mother metal after moistening, sprawling, flow, cool down several step, can be mother metal
Couple together.Therefore, during soldering solder whether can moistening on mother metal, sprawl, flow, be can to realize mother metal " to be reliably connected "
Key issue, therefore, can the effect of brazing flux be to realize the of the same race or important material being reliably connected of foreign material when soldering
Material.
It is known that the oxide of aluminum alloy surface is mainly Al2O3、MgO、MnO、CuO、SiO2Deng, the oxidation on steel surface
Thing is mainly FeO, Fe2O3、NiO、Cr2O3Deng, the oxide of copper alloy surface is mainly CuO, Cu2O, ZnO etc..Existing grind
Study carefully result to show, want to use a kind of brazing flux to remove aluminium alloy, steel, the oxide of copper alloy surface are very difficult simultaneously.Document
Show, the CsAlF developed in recent years4、KCsAlF4Brazing flux can remove the oxygen of aluminium alloy and copper alloy surface well, simultaneously
Compound, thus solve the brazing problems of Solder for Al-Cu Joint Welding foreign material, but, still can not remove aluminium alloy and steel (or stainless simultaneously
Steel) oxide on surface；The New type soldering flux of aluminium soldering " a kind of rustless steel with " that CN201310445105.3 recommends can solve
The soldering of aluminum-steel foreign material, but but can not soldering Solder for Al-Cu Joint Welding foreign material；CN201410076059.9 discloses one " can
Soldering aluminum steel and the brazing flux containing caesium rubidium of aluminum bronze ", but its formula is the most complicated, and during production, quality control is extremely difficult.Therefore,
Research and development are a kind of, and formula is relatively easy, be applicable to " Solder for Al-Cu Joint Welding ", the brazing flux of " aluminum-steel " and " aluminum-aluminum " soldering seems the most urgent
Cut, this invention " a kind of caesium rubidium brazing flux containing gallium oxide ", i.e. complete under this technical background.
Summary of the invention
The purpose of this invention is to provide one and can meet " Solder for Al-Cu Joint Welding ", " aluminum-steel " soldering simultaneously and can take into account " aluminum-aluminum "
The brazing requirements of structure also has the New type soldering flux of " high activity ".
A kind of caesium rubidium brazing flux containing gallium oxide, it is characterised in that be by molal quantity proportioning in terms of a mole: 0.12 mole～
The rubidium fluoride RbF (RbF) of 0.5 mole, the cesium fluoride (CsF) of 0.12 mole～0.5 mole, 0.001 mole～the oxidation of 0.2 mole
Aluminum (Al2O3), the potassium fluoride (KF) of 0.001 mole～0.02 mole, the gallium oxide (Ga of 0.0001 mole～0.02 mole2O3),
Aluminium fluoride (the AlF of 0.159 mole～0.479 mole3).The present invention can meet " Solder for Al-Cu Joint Welding ", " aluminum-steel " and " aluminum-aluminum " simultaneously
Brazing requirements and there is high activity, the spreading property (spreading area) on aluminium alloy, Q235 and 304 rustless steels be significantly better than with
Before be not added with Ga2O3Brazing flux (seeing accompanying drawing 1 to Fig. 8).
This invention uses commercially available rubidium fluoride RbF (RbF), cesium fluoride (CsF), aluminium oxide (Al2O3), potassium fluoride (KF), oxygen
Change gallium (Ga2O3), aluminium fluoride (AlF3), according to proportioning shown in the present invention, pass through simple " chemosynthesis " method or " physics mixes
Close " method, i.e. available required product.
The task of the present invention is performed by.
" physical mixed " mode (or claiming mechanical mixture mode) is used to be sufficiently mixed by proportioning above-mentioned each component composition
Uniformly i.e. obtain required product.Or use " simple chemosynthesis " mode, the most first with appropriate pure tap water (or distilled water,
Deionized water) in rustless steel container dissolve above-claimed cpd (can suitably heat if desired) to transparency liquid, then proceed to add
Heat, is evaporated to water crystallization completely, i.e. obtains required product after pulverizing.
The preparation of brazing flux can also use other any synthetic method to carry out.As long as meeting the composition proportion of the present invention, i.e.
Can reach the technique effect of the present invention.Such as: according to the ratio requirement of the present invention, basic according to inorganic chemical " chemosynthesis "
Principle, uses Cs2CO3、Rb2CO3、K2CO3React with Fluohydric acid. (i.e. HF), prepare CsF, RbF, KF；Then Al is used2O3With hydrogen
Fluoric acid (i.e. HF) reaction preparation AlF3；In suitable container (such as, Fluohydric acid. needs to use polytetrafluoroethylplastic plastic container), mixed
Close, neutralize (if necessary), heating, water is evaporated to completely crystallization, adds Ga2O3And mix homogeneously, i.e. prepare after pulverizing
The brazing flux of the present invention.Except " synthesis technique " is different, in addition to step difference, the brazing flux performance prepared and " physical mixed " mode or
Brazing flux performance that person's " simple chemosynthesis " mode prepares is just the same (sees Fig. 9 comparative example 1 to comparative example 3 and Fig. 9
In note 4).
Additionally, in Fig. 9 listed " brazed seam shear strength test data ", " 304 corrosion resistant plate+6063 aluminium alloy plate ", " Q235
Steel plate+6063 aluminium alloy plate ", the combination soldering of " T2 red copper+6063 aluminium alloy plate " three kinds of different materials time, embodiment 1 to enforcement
Example 6 and the result of the test numerical value of comparative example 1 to comparative example 3, all in " the same level scope " of 110MPa～140MPa, explanation
" synthetic method " does not has substantial effect to the brazing property of brazing flux of the present invention.
The technical scheme that the present invention provides is relative to existing technology, and outstanding feature is reported at existing document
CsAlF4(also can be expressed as CsF-AlF3), KCsAlF4(also can be expressed as KF-AlF3) brazing flux and CsF-RbF-AlF3Basis
On, with the addition of gallium oxide (Ga2O3) and aluminium oxide (Al2O3) etc. compound.The interpolation of above two compound, is possessing
CsAlF4、KCsAlF4And CsF-RbF-AlF3Brazing flux can soldering Solder for Al-Cu Joint Welding, aluminum-steel, aluminum-aluminum ability on the basis of, have
The most excellent removes aluminium alloy, steel and FeO, Fe of stainless steel surfaces2O3、NiO、Cr2O3Deng the ability of oxide, and
There is the simple feature of preparation technology.
The present invention " a kind of caesium rubidium brazing flux containing gallium oxide " preparation technology is simple, quality controllable, stable performance.Produce
Caesium rubidium brazing flux containing gallium oxide, coordinates the solders such as Zn-Al system, Al-Si-Zn system and Al-Si, uses in gas brazing, stove
The mode of heating such as soldering and induction brazing brazed aluminum-aluminum same metal material, Solder for Al-Cu Joint Welding foreign material, aluminum-steel foreign material with
And during aluminum-aluminum alloy materials, solder has excellent moistening, spreading property and permeance property on mother metal, Joint intensity up to
110MPa～140MPa.Air-conditioning, refrigerator complete machine industry, refrigeration accessory industry and the row such as track traffic, energy industry can be met
Industry low cost, the needs of high reliability green manufacturing.
Owing to using the brazing flux of the present invention, brazed aluminum and aluminium alloy are very easy to, in other words, can soldering Solder for Al-Cu Joint Welding, aluminum-
The brazing flux of steel typically can brazed aluminum-aluminum, so, test data appended by Fig. 9 list the most again aluminum-element in aluminium joint brazed seam resist
Cut strength test data.
Subordinate list is described
Fig. 1, Zn-2Al solder is on 5052 aluminium alloy mother metals, along with the spreading area curve of gallium oxide changes of contents；
Fig. 2, Zn-2Al solder is on 5052 aluminium alloy mother metals, along with the spreading area curve of rubidium fluoride RbF changes of contents；
Fig. 3, Zn-2Al solder is on 6063 aluminium alloy mother metals, along with the spreading area curve of gallium oxide changes of contents；
Fig. 4, Zn-2Al solder is on 6063 aluminium alloy mother metals, along with the spreading area curve of rubidium fluoride RbF changes of contents；
Fig. 5, Zn-2Al solder is on Q235 steel mother metal, along with the spreading area curve of gallium oxide changes of contents；
Fig. 6, Zn-2Al solder is on Q235 steel mother metal, along with the spreading area curve of rubidium fluoride RbF changes of contents；
Fig. 7, Zn-2Al solder is on 304 rustless steel mother metals, along with the spreading area curve of gallium oxide changes of contents；
Fig. 8, Zn-2Al solder is on 304 rustless steel mother metals, along with the spreading area curve of rubidium fluoride RbF changes of contents；
Fig. 9, brazed seam shear strength test data；
Figure 10, brazing flux add 0.0001mol.% gallium oxide, mate Zn-2Al solder, and brazing flux solder and 5052 aluminium alloys exist
500 DEG C of reactions residue X-ray diffraction of 3 minutes analyzes (i.e. XRD analysis) result；
Figure 11, brazing flux add 0.0001mol.% gallium oxide, mate Zn-2Al solder, and brazing flux solder and Q235 steel are at 500 DEG C
The residue X-ray diffraction reacted 3 minutes analyzes (i.e. XRD analysis) result.
Detailed description of the invention
Compared with research in the past, the creativeness of the present invention is:
1) gallium oxide (Ga it is found that2O3) " kelvin effect " can further improve CsF-RbF-AlF3" the striping of brazing flux
Ability ", thus invented aluminium alloy, Q235 steel and 304 rustless steel spreading property more preferably New type soldering fluxes.
The kelvin effect of high frequency electric is a kind of natural phenomena in physics's (electromagnetism), is generally well known.But
It is that, in brazing process, " kelvin effect " of certain oxide or halogenide is rarely reported.The inventors discovered that, at CsF-
RbF-AlF3In brazing flux, add the Ga of extremely trace2O3(0.0001 mole～0.02 mole), can make the spreading area of solder carry
High by about 50%～90%.By finding the solder surface " energy spectrum analysis " sprawled, there is " substantial amounts of " Ga on the solder surface sprawled2O3,
And the edge that solder is sprawled, Ga2O3" relative quantity " higher than the Ga of solder middle part sprawled2O3Content, thus deducibility
Its chemical reaction mechanism is due to Ga2O3Kelvin effect so that Ga2O3" quickly " can flow, and then promote CsF-RbF-
AlF3The flowing of brazing flux, thus improve spreading ability and the spreading area of solder.
From accompanying drawing 1～Fig. 8 it can be seen that at CsF-AlF3Adding RbF in brazing flux, can significantly improve solder sprawls face
Long-pending；But, at CsF-RbF-AlF3Brazing flux adds the Ga of trace again2O3, it is also possible to improve the spreading area of solder further.
Fig. 1, Fig. 3, Fig. 5, Fig. 7 are the comparing results on the basis of Fig. 2, Fig. 4, Fig. 6, Fig. 8.As space is limited, this specification is only given
Zn-2Al solder is on 5052,6063 aluminium alloys, Q235 steel, the 304 rustless steel mother metals, along with sprawling of gallium oxide changes of contents
The curve of areas and comparison example are along with the spreading area curve of rubidium fluoride RbF changes of contents.But, Al-12Si, Al-Si-Zn pricker
The spreading area change of material is roughly the same with the variation tendency of Zn-2Al solder.
For the ease of test and with pertinent literature Data Comparison, Fig. 1～Fig. 8 all uses mass percent, but with theory
Result in the molar fraction span of design is the most identical.In Fig. 1 Yu Fig. 3, Ga2O3Mass percent reaches 0.009%
Time, spreading area change tends towards stability, but in Fig. 5 Yu Fig. 7, Ga2O3Mass percent reaches spreading area when 0.05%
Change just tends towards stability.
Due to Ga2O3Stable and price is far below GaF3, therefore, add Ga2O3The above-mentioned excellent properties obtained, raw in reality
In product, there is good economic benefit.
2) gallium oxide (Ga it is found that2O3), the mechanism of action of CsF and RbF, thus preferably determine Ga2O3, CsF and
The interpolation scope of RbF.
By brazing flux is added 0.0001mol.% gallium oxide, mate Zn-2Al solder, with 5052,6063 aluminium alloys 500
DEG C reaction XRD analysis of reaction residues of 3 minutes is it was found that all there are Cs in reaction residues11O3、MgGa2O4Occur；With
Q235 steel, 304 rustless steels in 500 DEG C of reactions XRD analysis of reaction residues of 3 minutes it was found that reaction residues all has
AlPO4、FePO4Occur (seeing accompanying drawing 10, Figure 11).
Teach that to the above results " abnormal magical ", with the addition of Ga2O3CsF-RbF-AlF3Brazing flux and aluminium alloy table
During the oxide-film reaction in face, " extremely trace " Ga2O3Participation reaction i.e. " can be enriched with " and play an important role, and with MgGa2O4
Form occur, illustrate brazing flux with than Al2O3The reaction of more stable MgO is also " effect is notable ".RbF then has no residual
Slag occurs as " compound phase ", the compound " Dispersed precipitate " of Rb is described, plays a part " catalysis ", " helping weldering "；CsF is then
Always with Cs11O3Form occur, illustrate CsF really with Al2O3, MgO there occurs chemical reaction, replaced Al2O3, in MgO
O atom, this result " explains " in Fig. 1, Fig. 3 along with Ga2O3The increase of addition, Zn-2Al solder closes at 5052,6063 aluminum
On gold, spreading area increases further, and all than CsF-RbF-AlF3The reason that brazing flux (seeing Fig. 2, Fig. 4) spreading area is big.
With in the course of reaction of steel, due to Ga2O3Interpolation, the P(phosphorus in " have activated " steel) element participate in reaction.By
GB/T 700-2006 " carbon structural steels " understands, P≤0.045(mass percent in Q235 steel)；By GB/T 20878-2007
" the stainless steel and refractory steel trade mark and chemical composition " understands, and 304(is equivalent to the trade mark 06Cr19Ni10 in new standard) rustless steel
P≤0.045(mass percent), but in two kinds of steel, the content of P is relative to Ga2O3If addition still exceed one times even
Dry times.But, due to Ga2O3" catalytic action " so that the P of trace has given play to the special role of " beyond the imagination ".React residual
AlPO in slag4、FePO4Appearance (seeing accompanying drawing 11), and have no that compound containing Cs, Rb, Ga occurs, on the one hand explanation occurs
" enrichment phenomenon " of P, on the other hand, illustrates that the compound of Cs, Rb, Ga is all in the state of " Dispersed precipitate ".
In view of the restriction of " sensitivity " of XRD analysis method, the diffraction maximum of the compound of generally below 1% is all difficult to differentiate
Out, but, this does not affect Ga2O3, CsF and RbF mechanism of action analysis with determine.
In view of the analysis of above-mentioned result of the test with to Ga2O3, the determination of CsF and RbF role, the present invention is the most excellent
Change and determine Ga2O3, the interpolation scope of CsF and RbF so that the brazing flux of the present invention has the most excellent performance.
Mole recipe ratio of " a kind of caesium rubidium brazing flux containing gallium oxide " according to the present invention, the narration present invention is embodied as
Mode.
Embodiment 1
A kind of caesium rubidium brazing flux containing gallium oxide, by mole recipe ratio, its composition is: the rubidium fluoride RbF (RbF) of 0.12 mole,
The cesium fluoride (CsF) of 0.5 mole, the aluminium oxide (Al of 0.001 mole2O3), the potassium fluoride (KF) of 0.02 mole, 0.0001 mole
Gallium oxide (Ga2O3), the aluminium fluoride (AlF of 0.3589 mole3).
The novel caesium rubidium brazing flux containing gallium oxide that said ratio obtains, uses propane to carry out flame pricker as fuel gas
Weldering, coordinate Zn98-Al2, Al51.5-Si6.5-Zn42, Al88-Si12 solder, with 304 corrosion resistant plate+6063 aluminium alloy plates,
Q235 steel plate+6063 aluminium alloy plate, T2 red copper+5052 aluminium alloy plate, according to GB/T 11363-2008, " soldering joint strength tries
Proved recipe method " to test, brazed seam shearing strength respectively reaches 110MPa～140MPa.
Embodiment 2
A kind of caesium rubidium brazing flux containing gallium oxide, by mole recipe ratio, its composition is: the rubidium fluoride RbF (RbF) of 0.5 mole,
The cesium fluoride (CsF) of 0.12 mole, the aluminium oxide (Al of 0.2 mole2O3), the potassium fluoride (KF) of 0.001 mole, 0.02 mole
Gallium oxide (Ga2O3), the aluminium fluoride (AlF of 0.159 mole3).
The novel caesium rubidium brazing flux containing gallium oxide that said ratio obtains, uses propane to carry out flame pricker as fuel gas
Weldering, coordinate Zn98-Al2, Al51.5-Si6.5-Zn42, Al88-Si12 solder, with 304 corrosion resistant plate+6063 aluminium alloy plates,
Q235 steel plate+6063 aluminium alloy plate, T2 red copper+5052 aluminium alloy plate, according to GB/T 11363-2008, " soldering joint strength tries
Proved recipe method " to test, brazed seam shearing strength respectively reaches 110MPa～140MPa.
Embodiment 3
A kind of caesium rubidium brazing flux containing gallium oxide, by mole recipe ratio, its composition is: the rubidium fluoride RbF (RbF) of 0.25 mole,
The cesium fluoride (CsF) of 0.25 mole, the aluminium oxide (Al of 0.01 mole2O3), the potassium fluoride (KF) of 0.01 mole, 0.001 mole
Gallium oxide (Ga2O3), the aluminium fluoride (AlF of 0.479 mole3).
The novel caesium rubidium brazing flux containing gallium oxide that said ratio obtains, uses propane to carry out flame pricker as fuel gas
Weldering, coordinate Zn98-Al2, Al51.5-Si6.5-Zn42, Al88-Si12 solder, with 304 corrosion resistant plate+6063 aluminium alloy plates,
Q235 steel plate+6063 aluminium alloy plate, T2 red copper+5052 aluminium alloy plate, according to GB/T 11363-2008, " soldering joint strength tries
Proved recipe method " to test, brazed seam shearing strength respectively reaches 110MPa～140MPa.
Embodiment 4
A kind of caesium rubidium brazing flux containing gallium oxide, by mole recipe ratio, its composition is: the rubidium fluoride RbF (RbF) of 0.2 mole, 0.3
Mole cesium fluoride (CsF), the aluminium oxide (Al of 0.05 mole2O3), the potassium fluoride (KF) of 0.01 mole, the oxygen of 0.0005 mole
Change gallium (Ga2O3), the aluminium fluoride (AlF of 0.4395 mole3).
The novel caesium rubidium brazing flux containing gallium oxide that said ratio obtains, uses propane to carry out flame pricker as fuel gas
Weldering, coordinate Zn98-Al2, Al51.5-Si6.5-Zn42, Al88-Si12 solder, with 304 corrosion resistant plate+6063 aluminium alloy plates,
Q235 steel plate+6063 aluminium alloy plate, T2 red copper+5052 aluminium alloy plate, according to GB/T 11363-2008, " soldering joint strength tries
Proved recipe method " to test, brazed seam shearing strength respectively reaches 110MPa～140MPa.
Embodiment 5
A kind of caesium rubidium brazing flux containing gallium oxide, by mole recipe ratio, its composition is: the rubidium fluoride RbF (RbF) of 0.35 mole,
The cesium fluoride (CsF) of 0.22 mole, the aluminium oxide (Al of 0.01 mole2O3), the potassium fluoride (KF) of 0.01 mole, 0.0005 mole
Gallium oxide (Ga2O3), the aluminium fluoride (AlF of 0.4095 mole3).
The novel caesium rubidium brazing flux containing gallium oxide that said ratio obtains, uses propane to carry out flame pricker as fuel gas
Weldering, coordinate Zn98-Al2, Al51.5-Si6.5-Zn42, Al88-Si12 solder, with 304 corrosion resistant plate+6063 aluminium alloy plates,
Q235 steel plate+6063 aluminium alloy plate, T2 red copper+5052 aluminium alloy plate, according to GB/T 11363-2008, " soldering joint strength tries
Proved recipe method " to test, brazed seam shearing strength respectively reaches 110MPa～140MPa.
Embodiment 6
A kind of caesium rubidium brazing flux containing gallium oxide, by mole recipe ratio, its composition is: the rubidium fluoride RbF (RbF) of 0.32 mole,
The cesium fluoride (CsF) of 0.23 mole, the aluminium oxide (Al of 0.03 mole2O3), the potassium fluoride (KF) of 0.015 mole, 0.005 mole
Gallium oxide (Ga2O3), the aluminium fluoride (AlF of 0.4 mole3).
The novel caesium rubidium brazing flux containing gallium oxide that said ratio obtains, uses propane to carry out flame pricker as fuel gas
Weldering, coordinate Zn98-Al2, Al51.5-Si6.5-Zn42, Al88-Si12 solder, with 304 corrosion resistant plate+6063 aluminium alloy plates,
Q235 steel plate+6063 aluminium alloy plate, T2 red copper+5052 aluminium alloy plate, according to GB/T 11363-2008, " soldering joint strength tries
Proved recipe method " to test, brazed seam shearing strength respectively reaches 110MPa～140MPa.
Carry out testing according to GB/T 11363-2008 " soldering joint strength test method " by embodiment 1～embodiment 6
Test data arranges into Fig. 9, can more clearly understand and understand technical characterstic and the technique effect of this invention.In Fig. 9, contrast
Mole recipe ratio of example 1 to comparative example 3 is identical with embodiment 1, and the raw material simply used in preparation process is different,
Illustrate that the invention effect described in the embodiment of the present invention 1 to embodiment 6 is the most relevant with its mole of recipe ratio with this, and prepare with it
The raw material that process uses is unrelated.
Claims (1)
1. the caesium rubidium brazing flux containing gallium oxide, it is characterised in that in terms of a mole, by molal quantity proportioning be: 0.12 mole～
The rubidium fluoride RbF (RbF) of 0.5 mole, the cesium fluoride (CsF) of 0.12 mole～0.5 mole, 0.001 mole～the oxidation of 0.2 mole
Aluminum (Al2O3), the potassium fluoride (KF) of 0.001 mole～0.02 mole, the gallium oxide (Ga of 0.0001 mole～0.02 mole2O3),
0.159 mole～0.479 mole aluminium fluoride (AlF3).
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| CN105618961B (en) * | 2016-03-15 | 2018-07-31 | 南京理工大学 | A kind of caesium rubidium brazing flux containing zinc fluoroborate |
| CN106736046A (en) * | 2016-12-26 | 2017-05-31 | 江西东鹏新材料有限责任公司 | Caesium rubidium brazing flux containing ceric fluoride |
| CN106825996B (en) * | 2016-12-26 | 2018-12-28 | 南京航空航天大学 | The CsF-RbF-AlF of the fluoride containing nano rare earth3Brazing flux |
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