CN106271219A - A kind of No clean high-temperature electronic brazing flux and preparation method thereof - Google Patents

A kind of No clean high-temperature electronic brazing flux and preparation method thereof Download PDF

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Publication number
CN106271219A
CN106271219A CN201610736101.4A CN201610736101A CN106271219A CN 106271219 A CN106271219 A CN 106271219A CN 201610736101 A CN201610736101 A CN 201610736101A CN 106271219 A CN106271219 A CN 106271219A
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parts
brazing flux
clean high
stannum
temperature electronic
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王泽陆
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36Selection 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
    • B23K35/362Selection of compositions of fluxes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36Selection 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
    • B23K35/3612Selection 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 organic compounds as principal constituents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40Making wire or rods for soldering or welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of No clean high-temperature electronic brazing flux and preparation method thereof, described electronics brazing flux includes following raw material: bismuth chloride, hexafluosilicic acid stannum, Loprazolam stannum part, titanium dioxide, glass comminuted steel shot, acetylacetone,2,4-pentanedione zirconium, 1 benzyl glycolylurea, Polyethylene Glycol Oleate, organobentonite, decyl glucoside, poly-(3, 4 ethene dioxythiophenes) polystyrolsulfon acid, triphenylphosphine ruthenic chloride, diethylene glycol monohexyl ether, dipropylene glycol methyl ether, Starex, N, N dimethyl acetylamide, disproportionated rosin acid potassium, methyl-ethanolamine, lauroyl diethanolamine, 1 N hydroxy benzo triazole, dinonyl naphthalene sulfonate barium.Brazing flux prepared by the present invention in brazing process, the chemical salt fog of release is few, solder joint is full, corrosion-free, without rebound phenomenon, wetting power is high, shear strength is big, helps weldering excellent performance, and solder joint noresidue after soldering, surface-brightening, clean without follow-up cleaning process, easy to use.

Description

A kind of No clean high-temperature electronic brazing flux and preparation method thereof
Technical field
The invention belongs to technical field of electronic materials, be specifically related to a kind of No clean high-temperature electronic brazing flux and preparation side thereof Method.
Background technology
Brazing flux is the important component part of electronics connecting material, and in electronic-packaging processes, brazing flux acts primarily as and " helps weldering Connect " effect.Can the performance of brazing flux play pivotal role for realize good soldering connection, therefore, more and more looks forward to Industry payes attention to selection and the application of brazing flux.
For brazing flux, it is desirable to it has and good helps weldering property, high-insulativity and low-corrosiveness.At present, though the model of brazing flux Many, but the use of some brazing flux can cause solder joint dirtier and not easy cleaning, the brazing flux simultaneously remained can butt welding more or less Point produces corrosion, affects the bonding strength of solder joint, thus is substantially reduced the q&r of electronic product, to this end, No clean Brazing flux enjoys people to pay close attention to and likes.At present, although occur in that substantial amounts of No clean brazing flux, but its properties the most all can not Meet electrical connection techniques more preferable application development demand.
Summary of the invention
It is an object of the invention to provide a kind of No clean high-temperature electronic brazing flux and preparation method thereof, to solve above at least one Plant technical problem.
Technical scheme is come as follows:
A kind of No clean high-temperature electronic brazing flux, by weight, including following raw material: bismuth chloride 5-11 part, hexafluosilicic acid stannum 3-9 Part, Loprazolam stannum 2-6 part, titanium dioxide 1-7 part, glass comminuted steel shot 1-4 part, acetylacetone,2,4-pentanedione zirconium 2.4-6 part, 1-benzyl glycolylurea 6- 10 parts, Polyethylene Glycol Oleate 3-9 part, organobentonite 2-6 part, decyl glucoside 4-9 part, poly-(3,4-ethylene dioxy thiophene Fen)-polystyrolsulfon acid 3-7 part, triphenylphosphine ruthenic chloride 2-6 part, diethylene glycol monohexyl ether 18-28 part, dipropylene glycol Monomethyl ether 16-25 part, Starex 4-9 part, N,N-dimethylacetamide 2-8 part, disproportionated rosin acid potassium 1-5 part, methyl one second Hydramine 1-4 part, lauroyl diethanolamine 2-5 part, 1-N-hydroxy benzo triazole 3-8 part, dinonyl naphthalene sulfonate barium 2-7 part.
In technique scheme, by weight, including following raw material: bismuth chloride 5.6-9 part, hexafluosilicic acid stannum 3.2-7.5 Part, Loprazolam stannum 2.8-5.3 part, titanium dioxide 1.5-4 part, glass comminuted steel shot 1.4-3 part, acetylacetone,2,4-pentanedione zirconium 2.8-4.6 part, 1- Benzyl glycolylurea 6.5-9 part, Polyethylene Glycol Oleate 3.5-7 part, organobentonite 2.5-4.9 part, decyl glucoside 4.2-8 part, Poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid 3.5-6.2 part, triphenylphosphine ruthenic chloride 2.4-5 part, diethylene glycol list oneself Ether 20-27 part, dipropylene glycol methyl ether 18-23 part, Starex 4.5-8.6 part, N,N-dimethylacetamide 2.4-7.3 Part, disproportionated rosin acid potassium 1.4-4.5 part, methyl-ethanolamine 1.6-3.8 part, lauroyl diethanolamine 2.7-4.5 part, 1-N-hydroxyl Base BTA 3.6-7.2 part, dinonyl naphthalene sulfonate barium 2.6-5 part.
In technique scheme, by weight, including following raw material: bismuth chloride 6.8 parts, 5.3 parts of hexafluosilicic acid stannum, methane 3.7 parts of sulfonic acid stannum, titanium dioxide 2 parts, glass comminuted steel shot 1.6 parts, acetylacetone,2,4-pentanedione zirconium 3.5 parts, 1-benzyl glycolylurea 7.3 parts, oleic acid are poly- Glycol ester 5.4 parts, organobentonite 3.8 parts, decyl glucoside 5.2 parts, poly-(3,4-ethene dioxythiophene)-polystyrene sulphur Acid 4.9 parts, triphenylphosphine ruthenic chloride 3.5 parts, diethylene glycol monohexyl ether 23 parts, dipropylene glycol methyl ether 21 parts, oil slick pine Perfume 6.7 parts, N,N-dimethylacetamide 4.5 parts, 3.8 parts of disproportionated rosin acid potassium, methyl-ethanolamine 2.4 parts, lauroyl diethyl Hydramine 3.3 parts, 1-N-hydroxy benzo triazole 5.6 parts, dinonyl naphthalene sulfonate barium 4.2 parts.
Another technical scheme of the present invention is come as follows:
The preparation method of No clean high-temperature electronic brazing flux, including following preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, it is placed in 80-120 DEG C of bar Process 2-8h under part, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Enter diethylene glycol monohexyl ether and dipropylene glycol methyl ether, be uniformly mixed;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 800-1500rpm stirring mixing 40-80 minute;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 300-600rpm stirring mixing 1-4 hour;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
In technique scheme, in step (2), under the conditions of being placed in 95 DEG C, process 6h.
In technique scheme, the temperature of the most described stirring mixing is 70-90 DEG C, and mixing speed is 500- 800rpm, mixing time is 40-60 minute.
In technique scheme, in step (4), with rotating speed for 1100rpm stirring mixing 55 minutes.
In technique scheme, in step (5), with rotating speed for 450rpm stirring mixing 2.5 hours.
Owing to have employed above technical scheme, the invention have the benefit that
Brazing flux prepared by the present invention is in whole brazing process, and the chemical salt fog of release is few, solder joint is full, without rebound phenomenon, and Can be seen that the wetting power of this solder flux reaches 3.42 ~ 3.65mN by above test result, shear strength reaches 24.3 ~ 28.2MPa, table Reveal and preferably help weldering performance.In addition test result also shows that the solder joint corrosive salt spray of resistance to 720h is the most unchanged, can reduce soldering After etching problem, solder joint noresidue after soldering simultaneously, surface-brightening, clean without follow-up cleaning process, easy to use.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail.Following example are used for the present invention is described, But it is not limited to the scope of the present invention.
Embodiment 1
A kind of No clean high-temperature electronic brazing flux, by weight, including following raw material: bismuth chloride 5 parts, 3 parts of hexafluosilicic acid stannum, methane 2 parts of sulfonic acid stannum, titanium dioxide 1 part, glass comminuted steel shot 1 part, acetylacetone,2,4-pentanedione zirconium 2.4 parts, 1-benzyl glycolylurea 6 parts, oleic acid Polyethylene Glycol Ester 3 parts, organobentonite 2 parts, decyl glucoside 4 parts, poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid 3 parts, triphenyl Phosphine ruthenic chloride 2 parts, diethylene glycol monohexyl ether 18 parts, dipropylene glycol methyl ether 16 parts, Starex 4 parts, N, N-dimethyl Acetamide 2 parts, 1 part of disproportionated rosin acid potassium, methyl-ethanolamine 1 part, lauroyl diethanolamine 2 parts, 1-N-hydroxy benzo three nitrogen Azoles 3 parts, dinonyl naphthalene sulfonate barium 2 parts.
The preparation method of described No clean high-temperature electronic brazing flux, including following preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, under the conditions of being placed in 80 DEG C Process 2h, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Entering diethylene glycol monohexyl ether and dipropylene glycol methyl ether, stirring mixing, the temperature of described stirring mixing is 70 DEG C, stirring speed Degree is 500rpm, and mixing time is 40 minutes;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 800rpm stirring mixing 40 minutes;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 300rpm stirring mixing 1 hour;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
Embodiment 2
A kind of No clean high-temperature electronic brazing flux, by weight, including following raw material: bismuth chloride 11 parts, 9 parts of hexafluosilicic acid stannum, first 6 parts of alkyl sulfonic acid stannum, titanium dioxide 7 parts, glass comminuted steel shot 4 parts, acetylacetone,2,4-pentanedione zirconium 6 parts, 1-benzyl glycolylurea 10 parts, oleic acid Polyethylene Glycol Ester 9 parts, organobentonite 6 parts, decyl glucoside 9 parts, poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid 7 parts, triphenyl Phosphine ruthenic chloride 6 parts, diethylene glycol monohexyl ether 28 parts, dipropylene glycol methyl ether 25 parts, Starex 9 parts, N, N-dimethyl Acetamide 8 parts, 5 parts of disproportionated rosin acid potassium, methyl-ethanolamine 4 parts, lauroyl diethanolamine 5 parts, 1-N-hydroxy benzo three nitrogen Azoles 8 parts, dinonyl naphthalene sulfonate barium 7 parts.
The preparation method of described No clean high-temperature electronic brazing flux, including following preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, under the conditions of being placed in 120 DEG C Process 8h, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Entering diethylene glycol monohexyl ether and dipropylene glycol methyl ether, stirring mixing, the temperature of described stirring mixing is 90 DEG C, stirring speed Degree is 800rpm, and mixing time is 60 minutes;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 1500rpm stirring mixing 80 minutes;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 600rpm stirring mixing 4 hours;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
Embodiment 3
A kind of No clean high-temperature electronic brazing flux, by weight, including following raw material: bismuth chloride 5.6 parts, 3.2 parts of hexafluosilicic acid stannum, 2.8 parts of Loprazolam stannum, titanium dioxide 1.5 parts, glass comminuted steel shot 1.4 parts, acetylacetone,2,4-pentanedione zirconium 2.8 parts, 1-benzyl glycolylurea 6.5 parts, Polyethylene Glycol Oleate 3.5 parts, organobentonite 2.5 parts, decyl glucoside 4.2 parts, poly-(3,4-ethene dioxythiophene)-polyphenyl Vinyl sulfonic acid 3.5 parts, triphenylphosphine ruthenic chloride 2.4 parts, diethylene glycol monohexyl ether 20 parts, dipropylene glycol methyl ether 18 parts, Starex 4.5 parts, N,N-dimethylacetamide 2.4 parts, 1.4 parts of disproportionated rosin acid potassium, methyl-ethanolamine 1.6 parts, Laurel Acyl diethanolamine 2.7 parts, 1-N-hydroxy benzo triazole 3.6 parts, dinonyl naphthalene sulfonate barium 2.6 parts.
The preparation method of described No clean high-temperature electronic brazing flux, including following preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, under the conditions of being placed in 110 DEG C Process 6h, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Entering diethylene glycol monohexyl ether and dipropylene glycol methyl ether, stirring mixing, the temperature of described stirring mixing is 80 DEG C, stirring speed Degree is 650rpm, and mixing time is 55 minutes;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 1300rpm stirring mixing 55 minutes;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 450rpm stirring mixing 3 hours;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
Embodiment 4
A kind of No clean high-temperature electronic brazing flux, by weight, including following raw material: bismuth chloride 9 parts, 7.5 parts of hexafluosilicic acid stannum, first 5.3 parts of alkyl sulfonic acid stannum, titanium dioxide 4 parts, glass comminuted steel shot 3 parts, acetylacetone,2,4-pentanedione zirconium 4.6 parts, 1-benzyl glycolylurea 9 parts, the poly-second of oleic acid Diol ester 7 parts, organobentonite 4.9 parts, decyl glucoside 8 parts, poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid 6.2 Part, triphenylphosphine ruthenic chloride 5 parts, diethylene glycol monohexyl ether 27 parts, dipropylene glycol methyl ether 23 parts, Starex 8.6 parts, N,N-dimethylacetamide 7.3 parts, 4.5 parts of disproportionated rosin acid potassium, methyl-ethanolamine 3.8 parts, lauroyl diethanolamine 4.5 Part, 1-N-hydroxy benzo triazole 7.2 parts, dinonyl naphthalene sulfonate barium 5 parts.
The preparation method of described No clean high-temperature electronic brazing flux, including following preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, under the conditions of being placed in 90 DEG C Process 5h, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Entering diethylene glycol monohexyl ether and dipropylene glycol methyl ether, stirring mixing, the temperature of described stirring mixing is 80 DEG C, stirring speed Degree is 700rpm, and mixing time is 45 minutes;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 1400rpm stirring mixing 60 minutes;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 560rpm stirring mixing 3 hours;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
Embodiment 5
A kind of No clean high-temperature electronic brazing flux, by weight, including following raw material: bismuth chloride 6.8 parts, 5.3 parts of hexafluosilicic acid stannum, 3.7 parts of Loprazolam stannum, titanium dioxide 2 parts, glass comminuted steel shot 1.6 parts, acetylacetone,2,4-pentanedione zirconium 3.5 parts, 1-benzyl glycolylurea 7.3 parts, oil Acid polyethylene glycol ester 5.4 parts, organobentonite 3.8 parts, decyl glucoside 5.2 parts, poly-(3,4-ethene dioxythiophene)-polyphenyl second Alkene sulfonic acid 4.9 parts, triphenylphosphine ruthenic chloride 3.5 parts, diethylene glycol monohexyl ether 23 parts, dipropylene glycol methyl ether 21 parts, floating Oil rosin 6.7 parts, N,N-dimethylacetamide 4.5 parts, 3.8 parts of disproportionated rosin acid potassium, methyl-ethanolamine 2.4 parts, lauroyl Diethanolamine 3.3 parts, 1-N-hydroxy benzo triazole 5.6 parts, dinonyl naphthalene sulfonate barium 4.2 parts.
The preparation method of described No clean high-temperature electronic brazing flux, including following preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, under the conditions of being placed in 95 DEG C Process 6h, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Entering diethylene glycol monohexyl ether and dipropylene glycol methyl ether, stirring mixing, the temperature of described stirring mixing is 85 DEG C, stirring speed Degree is 600rpm, and mixing time is 60 minutes;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 1100rpm stirring mixing 55 minutes;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 450rpm stirring mixing 2.5 hours;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
Comparative example 1
This comparative example with the difference of embodiment 1 is: this comparative example is without titanium dioxide, acetylacetone,2,4-pentanedione zirconium and disproportionated rosin Acid potassium and correlation step thereof.
Comparative example 2
To the difference of comparative example with embodiment 1 it is: this comparative example is without triphenylphosphine ruthenic chloride, 1-benzyl glycolylurea and chlorine Change bismuth and correlation step thereof.
Test result
The solder commonly used on brazing flux Auxiliary market prepared by above example and comparative example is carried out soldering, according to the industry The performances such as wetting power, shear strength and the corrosion resistance of brazing flux are tested by testing standard, and its test result is as shown in the table:
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Comparative example 1 Comparative example 2
Wetting power/mN(250 DEG C) 3.46 3.42 3.58 3.61 3.65 3.03 3.11
Shear strength/MPa 24.3 25.8 27.3 26.5 28.2 21.6 20.9
Solder joint corrosion resistance (20wt.% NaCl salt spray is tested, 720h) Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged
Solder joint remains Noresidue Noresidue Noresidue Noresidue Noresidue Slight residual The most residual Stay
Brazing flux prepared by the present invention is in whole brazing process, and the chemical salt fog of release is few, solder joint is full, without rebound phenomenon, and Can be seen that the wetting power of this solder flux reaches 3.42 ~ 3.65mN by above test result, shear strength reaches 24.3 ~ 28.2MPa, table Reveal and preferably help weldering performance.In addition test result also shows that the solder joint corrosive salt spray of resistance to 720h is the most unchanged, can reduce soldering After etching problem, solder joint noresidue after soldering simultaneously, surface-brightening, clean without follow-up cleaning process, easy to use.

Claims (8)

1. a No clean high-temperature electronic brazing flux, it is characterised in that by weight, including following raw material: bismuth chloride 5-11 part, Hexafluosilicic acid stannum 3-9 part, Loprazolam stannum 2-6 part, titanium dioxide 1-7 part, glass comminuted steel shot 1-4 part, acetylacetone,2,4-pentanedione zirconium 2.4-6 part, 1-benzyl glycolylurea 6-10 part, Polyethylene Glycol Oleate 3-9 part, organobentonite 2-6 part, decyl glucoside 4-9 part, poly-(3,4- Ethene dioxythiophene)-polystyrolsulfon acid 3-7 part, triphenylphosphine ruthenic chloride 2-6 part, diethylene glycol monohexyl ether 18-28 part, one Contracting dipropylene glycol monomethyl ether 16-25 part, Starex 4-9 part, N,N-dimethylacetamide 2-8 part, disproportionated rosin acid potassium 1-5 Part, methyl-ethanolamine 1-4 part, lauroyl diethanolamine 2-5 part, 1-N-hydroxy benzo triazole 3-8 part, dinonylnaphthalene sulfonic acid Barium 2-7 part.
No clean high-temperature electronic brazing flux the most according to claim 1, it is characterised in that by weight, including following former Material: bismuth chloride 5.6-9 part, hexafluosilicic acid stannum 3.2-7.5 part, Loprazolam stannum 2.8-5.3 part, titanium dioxide 1.5-4 part, fiberglass Powder 1.4-3 part, acetylacetone,2,4-pentanedione zirconium 2.8-4.6 part, 1-benzyl glycolylurea 6.5-9 part, Polyethylene Glycol Oleate 3.5-7 part, organic bentonite Profit soil 2.5-4.9 part, decyl glucoside 4.2-8 part, poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid 3.5-6.2 part, three Phenylphosphine ruthenic chloride 2.4-5 part, diethylene glycol monohexyl ether 20-27 part, dipropylene glycol methyl ether 18-23 part, Starex 4.5-8.6 part, N,N-dimethylacetamide 2.4-7.3 part, disproportionated rosin acid potassium 1.4-4.5 part, methyl-ethanolamine 1.6-3.8 Part, lauroyl diethanolamine 2.7-4.5 part, 1-N-hydroxy benzo triazole 3.6-7.2 part, dinonyl naphthalene sulfonate barium 2.6-5 part.
No clean high-temperature electronic brazing flux the most according to claim 1, it is characterised in that by weight, including following former Material: bismuth chloride 6.8 parts, 5.3 parts of hexafluosilicic acid stannum, 3.7 parts of Loprazolam stannum, titanium dioxide 2 parts, glass comminuted steel shot 1.6 parts, levulinic Ketone zirconium 3.5 parts, 1-benzyl glycolylurea 7.3 parts, Polyethylene Glycol Oleate 5.4 parts, organobentonite 3.8 parts, decyl glucoside 5.2 Part, poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid 4.9 parts, triphenylphosphine ruthenic chloride 3.5 parts, diethylene glycol monohexyl ether 23 parts, dipropylene glycol methyl ether 21 parts, Starex 6.7 parts, N,N-dimethylacetamide 4.5 parts, disproportionated rosin acid potassium 3.8 parts, methyl-ethanolamine 2.4 parts, lauroyl diethanolamine 3.3 parts, 1-N-hydroxy benzo triazole 5.6 parts, dinonyl naphthalene Barium sulfonate 4.2 parts.
4. the preparation method of the No clean high-temperature electronic brazing flux as described in claim 1-3 is arbitrary, it is characterised in that include following Preparation process:
(1) weigh by certain part by weight;
(2) by bismuth chloride, hexafluosilicic acid stannum, titanium dioxide, organobentonite, glass comminuted steel shot mix homogeneously, it is placed in 80-120 DEG C of bar Process 2-8h under part, be cooled to room temperature, be ground to 100-200 mesh, standby;
(3) adding in reactor by Starex, Polyethylene Glycol Oleate and decyl glucoside, heated and stirred melts, and then adds Enter diethylene glycol monohexyl ether and dipropylene glycol methyl ether, be uniformly mixed;
(4) powder that step (2) obtains is equally divided into 5 parts, is added portionwise into while stirring in the solution that step (3) obtains, treats After powder all adds, with rotating speed for 800-1500rpm stirring mixing 40-80 minute;
(5) remaining raw material is added in the solution in step (4), with rotating speed for 300-600rpm stirring mixing 1-4 hour;
(6) through filtering and regulating to appropriate viscosity, No clean high-temperature electronic brazing flux is obtained.
The preparation method of No clean high-temperature electronic brazing flux the most according to claim 4, it is characterised in that in step (2), 6h is processed under the conditions of being placed in 95 DEG C.
The preparation method of No clean high-temperature electronic brazing flux the most according to claim 4, it is characterised in that in step (3) The temperature of described stirring mixing is 70-90 DEG C, and mixing speed is 500-800rpm, and mixing time is 40-60 minute.
The preparation method of No clean high-temperature electronic brazing flux the most according to claim 4, it is characterised in that in step (4), With rotating speed for 1100rpm stirring mixing 55 minutes.
The preparation method of No clean high-temperature electronic brazing flux the most according to claim 4, it is characterised in that in step (5), With rotating speed for 450rpm stirring mixing 2.5 hours.
CN201610736101.4A 2016-08-26 2016-08-26 A kind of No clean high-temperature electronic brazing flux and preparation method thereof Pending CN106271219A (en)

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Citations (9)

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Publication number Priority date Publication date Assignee Title
EP0550139A1 (en) * 1991-12-31 1993-07-07 International Business Machines Corporation A thermally stable water soluble solder flux and paste
JPH08155677A (en) * 1994-12-07 1996-06-18 Futaba Corp Washingless flux for soldering
US20010025673A1 (en) * 1999-12-14 2001-10-04 Henderson Donald W. Composition for increasing activity of a no-clean flux
CN101003111A (en) * 2007-01-16 2007-07-25 大连理工大学 Soldering flux in use for SnZn series solder with no lead, and preparation method
CN102728967A (en) * 2012-07-19 2012-10-17 华南理工大学 Scaling powder for nickel-plating alloy soft soldering tin wire core and preparation method of scaling powder
CN103878503A (en) * 2014-03-10 2014-06-25 苏州捷德瑞精密机械有限公司 Scaling powder and preparing method thereof
CN104708233A (en) * 2015-02-28 2015-06-17 深圳市荣昌科技有限公司 No-clean flux suitable for copper-aluminum soldering and preparation method thereof
CN105014253A (en) * 2014-04-30 2015-11-04 江苏博迁新材料有限公司 Lead-free tin solder paste and preparation method thereof
CN105798482A (en) * 2016-04-29 2016-07-27 东莞永安科技有限公司 Halogen-free non-cleaning flux and preparation method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0550139A1 (en) * 1991-12-31 1993-07-07 International Business Machines Corporation A thermally stable water soluble solder flux and paste
JPH08155677A (en) * 1994-12-07 1996-06-18 Futaba Corp Washingless flux for soldering
US20010025673A1 (en) * 1999-12-14 2001-10-04 Henderson Donald W. Composition for increasing activity of a no-clean flux
CN101003111A (en) * 2007-01-16 2007-07-25 大连理工大学 Soldering flux in use for SnZn series solder with no lead, and preparation method
CN102728967A (en) * 2012-07-19 2012-10-17 华南理工大学 Scaling powder for nickel-plating alloy soft soldering tin wire core and preparation method of scaling powder
CN103878503A (en) * 2014-03-10 2014-06-25 苏州捷德瑞精密机械有限公司 Scaling powder and preparing method thereof
CN105014253A (en) * 2014-04-30 2015-11-04 江苏博迁新材料有限公司 Lead-free tin solder paste and preparation method thereof
CN104708233A (en) * 2015-02-28 2015-06-17 深圳市荣昌科技有限公司 No-clean flux suitable for copper-aluminum soldering and preparation method thereof
CN105798482A (en) * 2016-04-29 2016-07-27 东莞永安科技有限公司 Halogen-free non-cleaning flux and preparation method thereof

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