CN108202190A - A kind of No-cleaning liquid aluminum flux and preparation method thereof - Google Patents
A kind of No-cleaning liquid aluminum flux and preparation method thereof Download PDFInfo
- Publication number
- CN108202190A CN108202190A CN201611188330.3A CN201611188330A CN108202190A CN 108202190 A CN108202190 A CN 108202190A CN 201611188330 A CN201611188330 A CN 201611188330A CN 108202190 A CN108202190 A CN 108202190A
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- CN
- China
- Prior art keywords
- cleaning liquid
- fluoride
- liquid aluminum
- active material
- percentage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- 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
- B23K35/3612—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 organic compounds as principal constituents
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The present invention relates to a kind of No-cleaning liquid aluminum fluxs and preparation method thereof, include the following steps：1) according to weight percentage, fluorination azanol 60 85%, metal active salt 5 30%, activating agent 1 5%, corrosion inhibiter 0.1 5% is weighed, is uniformly mixed, obtains active material, it is spare；2) above-mentioned active material 15 30% and the solvent 70 85% in percentage by weight, are weighed respectively, it is spare；3) above-mentioned load weighted solvent and active material are mixed, and is stirred continuously in mixed process, then heat to 50 60 DEG C, stirred 8 12 minutes, be put into sealed plastic container and preserve to get the No-cleaning liquid aluminum flux.The No-cleaning liquid aluminum flux solderability of the present invention is good, and welding efficiency is high；It splashes during welding small, almost without splashing, saves solder；Postwelding residual is few, and for solder joint without cleaning, service life is long.
Description
Technical field
The present invention relates to a kind of a kind of liquid free of cleaning of aluminum soft soldering product in scaling powder more particularly to electronics industry
Body aluminium scaling powder and preparation method thereof.
Background technology
At present, electron and electrician industry is advanced by leaps and bounds, and for the solder to match therewith also proposed higher with material
Requirement, meanwhile, the importance of health is also increasingly valued by the people, and is advocated by developed country and is taken a series of
Measure, for improving earth environment for the survival of mankind, Environmental Protection Administration of the United Nations also proposed time limit change hazardous atmosphere ring
The requirement of the substance in border.And electron and electrician industry is since the reliability requirement to portioned product is very high, existing scaling powder due to
The reason of aspect of performance, after welding must carry out weldment cleaning and just can guarantee the performance of product, and use now clear
It is all fluorine-containing, chlorine substituent hydrocarbon compound that lotion is most of, and such substance has atmospheric ozone layer serious destruction,
Belong to the range that the necessary time limit of Environmental Protection Administration of the United Nations proposition is forbidden producing and be used, while such substance is to the body of operation employee
Body health equally has very big toxic action, and for factors above, there is an urgent need to existing technique is carried out for electron and electrician industry
It improves, to achieve the purpose that protect human body and atmospheric environment, wherein an important measure is exactly to help weldering using type free of cleaning
Agent, also there is the research institute of no-clean scaling powder in the country, but foaming is not good enough during the welding of generally existing no-clean scaling powder, is mostly used
It is set in spraying.
At present in electronics industry aluminum soft soldering product using more and more.Aluminium is a kind of more hard-to-weld metal,
It is so seldom in the application of civil electronic solder field.But as copper cost is higher and higher, enterprise's aluminium is more next for the requirement of copper
It is more urgent, it also have stimulated the development of aluminum soft soldering technology applicatory.A kind of current relatively common welding form is to use liquid
The aluminium scaling powder of build.For example it can be used in the aluminum component for welding some small volumes and dip in liquid aluminium scaling powder in tin stove and soak
Tin.This welding manner is efficient, and welding surface is smooth, is widely used in practice produces.
Invention content
A kind of No-cleaning liquid aluminum flux is inventor provided, it is few to solve tining amount, and Xi Mianshang has dew aluminium, welding to live
Property not enough and welding residual corrosion it is big the problems such as.
The technical proposal of the invention is realized in this way：A kind of No-cleaning liquid aluminum flux, in percentage by weight,
Including active material 15-30%, solvent 70-85%, wherein the active material, according to weight percentage, including being fluorinated hydroxyl
Amine 60-85%, metal active salt 5-30%, activator 1-5%, corrosion inhibiter 0.1-5%.
As preferred technical solution, the active material, in percentage by weight, including being fluorinated azanol
80%th, metal active salt 15%, activator 2%, corrosion inhibiter 3%.
As preferred technical solution, the preparation method of the fluorination azanol includes the following steps：
1) ethylenediamine 1-5%, ethanol amine 3-30%, diethanol amine 20-90% and three ethyl alcohol in percentage by weight, are taken
Amine 5-80% is uniformly mixed, obtains mixture；
2) it is 6.5-8 gained mixture to be neutralized to pH value with hydrofluoric acid；
3) above-mentioned neutralized reaction product is evaporated 3.5-4.5 hours at a temperature of 140-160 DEG C.
As preferred technical solution, the metal active salt is tin fluoride, stannous fluoride, stannous fluoboric acid, chlorination
One or more kinds of combinations in stannous, zinc fluoride, zinc fluoroborate, zinc chloride and bismuth chloride.
As preferred technical solution, the activator is diethylamine hydrochloride, triethylamine hydrochloride, lithium fluoride, fluorine
Change one or more kinds of combinations in sodium, magnesium fluoride and aluminum fluoride.
As preferred technical solution, the solvent is water, ethyl alcohol, isopropanol, glycol, one kind in propylene glycol or one
Kind or more combination.
As preferred technical solution, the corrosion inhibiter is benzotriazole and/or piperazine.
The present invention also proposes a kind of method for preparing No-cleaning liquid aluminum flux, it includes the following steps：
1) it according to weight percentage, weighs fluorination azanol 60-85%, metal active salt 5-30%, activator 1-5%, delay
Agent 0.1-5% is lost, is uniformly mixed, obtains active material, it is spare；
2) above-mentioned active material 15-30% and the solvent 70-85% in percentage by weight, are weighed respectively,
It is spare；
3) above-mentioned load weighted solvent and active material are mixed, and is stirred continuously in mixed process, then heated to
It 50-60 DEG C, stirs 8-12 minutes, is put into sealed plastic container and preserves to get the No-cleaning liquid aluminum flux.
As preferred technical solution, according to weight percentage, weigh fluorination azanol 80%, metal active salt 15%, live
Agent 2%, corrosion inhibiter 3% are uniformly mixed, obtain active material, spare.
As preferred technical solution, the metal active salt is tin fluoride, stannous fluoride, stannous fluoboric acid, chlorination
One or more kinds of combinations in stannous, zinc fluoride, zinc fluoroborate, zinc chloride and bismuth chloride；The activator is two
One or more kinds of combinations in ethylamine hydrochloride, triethylamine hydrochloride, lithium fluoride, sodium fluoride, magnesium fluoride and aluminum fluoride；
The solvent is water, one or more kinds of combinations in ethyl alcohol, isopropanol, glycol, propylene glycol；The corrosion inhibiter is
Benzotriazole and/or piperazine.
By adopting the above-described technical solution, a kind of No-cleaning liquid aluminum flux, in percentage by weight, including work
Property substance 15-30%, solvent 70-85%, wherein the active material, according to weight percentage, including being fluorinated azanol 60-
85%th, metal active salt 5-30%, activator 1-5%, corrosion inhibiter 0.1-5%, have：Solderability is good, and welding efficiency is high；Welding
When, splashes small, almost without splashing, saves solder；The advantages that postwelding residual is few, and solder joint need not clean, and service life is long.
Specific embodiment
A kind of No-cleaning liquid aluminum flux, in percentage by weight, including active material 15-30%, solvent 70-
85%, wherein the active material, according to weight percentage, including fluorination azanol 60-85%, metal active salt 5-30%,
Activator 1-5%, corrosion inhibiter 0.1-5%.
The active material, in percentage by weight, including fluorination azanol 80%, metal active salt 15%, activation
Agent 2%, corrosion inhibiter 3%.
The preparation method of the fluorination azanol, includes the following steps：
1) ethylenediamine 1-5%, ethanol amine 3-30%, diethanol amine 20-90% and three ethyl alcohol in percentage by weight, are taken
Amine 5-80% is uniformly mixed, obtains mixture；
2) it is 6.5-8 gained mixture to be neutralized to pH value with hydrofluoric acid；
3) above-mentioned neutralized reaction product is evaporated 3.5-4.5 hours at a temperature of 140-160 DEG C.
The metal active salt is tin fluoride, stannous fluoride, stannous fluoboric acid, stannous chloride, zinc fluoride, fluoboric acid
One or more kinds of combinations in zinc, zinc chloride and bismuth chloride.
The activator is diethylamine hydrochloride, triethylamine hydrochloride, lithium fluoride, sodium fluoride, magnesium fluoride and aluminum fluoride
In one or more kinds of combinations.
The solvent is water, one or more kinds of combinations in ethyl alcohol, isopropanol, glycol, propylene glycol.
The corrosion inhibiter is benzotriazole and/or piperazine.
A kind of method for preparing No-cleaning liquid aluminum flux, includes the following steps：
1) it according to weight percentage, weighs fluorination azanol 60-85%, metal active salt 5-30%, activator 1-5%, delay
Agent 0.1-5% is lost, is uniformly mixed, obtains active material, it is spare；
2) above-mentioned active material 15-30% and the solvent 70-85% in percentage by weight, are weighed respectively,
It is spare；
3) above-mentioned load weighted solvent and active material are mixed, and is stirred continuously in mixed process, then heated to
It 50-60 DEG C, stirs 8-12 minutes, is put into sealed plastic container and preserves to get the No-cleaning liquid aluminum flux.
The metal active salt is tin fluoride, stannous fluoride, stannous fluoboric acid, stannous chloride, zinc fluoride, fluoboric acid
One or more kinds of combinations in zinc, zinc chloride and bismuth chloride.
The activator is diethylamine hydrochloride, triethylamine hydrochloride, lithium fluoride, sodium fluoride, magnesium fluoride and aluminum fluoride
In one or more kinds of combinations.
The solvent is water, one or more kinds of combinations in ethyl alcohol, isopropanol, glycol, propylene glycol.It is fluorinated hydroxyl
The preparation of amine
Embodiment 1
The preparation method of azanol is fluorinated, it includes the following steps：
1) ethylenediamine 1%, ethanol amine 30%, diethanol amine 64% and triethanolamine 5% in percentage by weight, are taken,
It is mixed evenly, obtains mixture；
2) it is 6.5 gained mixture to be neutralized to pH value with hydrofluoric acid；
3) above-mentioned neutralized reaction product at a temperature of 140 DEG C is evaporated 4.5 hours, to remove moisture therein, prevents from subsequently welding
Connect splashing.
Embodiment 2
The preparation method of azanol is fluorinated, it includes the following steps：
1) ethylenediamine 5%, ethanol amine 3%, diethanol amine 84% and triethanolamine 8% in percentage by weight, are taken, is mixed
Conjunction stirs evenly, and obtains mixture；
2) it is 7 gained mixture to be neutralized to pH value with hydrofluoric acid；
3) above-mentioned neutralized reaction product at a temperature of 160 DEG C is evaporated 3.5 hours, to remove moisture therein, prevents from subsequently welding
Connect splashing.
Embodiment 3
The preparation method of azanol is fluorinated, it includes the following steps：
1) ethylenediamine 2%, ethanol amine 3%, diethanol amine 20% and triethanolamine 75% in percentage by weight, are taken,
It is mixed evenly, obtains mixture；
2) it is 8 gained mixture to be neutralized to pH value with hydrofluoric acid；
3) above-mentioned neutralized reaction product at a temperature of 150 DEG C is evaporated 4 hours, to remove moisture therein, prevents from subsequently welding
It splashes.
Claims (4)
1. a kind of No-cleaning liquid aluminum flux, it is characterised in that：In percentage by weight, including active material 15-30%,
Solvent 70-85%, wherein the active material, according to weight percentage, including fluorination azanol 60-85%, metal active salt
5-30%, activator 1-5%, corrosion inhibiter 0.1-5%；The preparation method of the fluorination azanol, includes the following steps：
1) ethylenediamine 1-5%, ethanol amine 3-30%, diethanol amine 20-90% and triethanolamine 5- in percentage by weight, are taken
80%, it is mixed evenly, obtains mixture, it is spare；
2) it is 6.5-8 gained mixture to be neutralized to PH with hydrofluoric acid, obtains neutralized reaction product；
3) above-mentioned gained neutralized reaction product is evaporated 3.5-4.5 hours at a temperature of 140-160 DEG C.
2. a kind of No-cleaning liquid aluminum flux as described in claim 1, it is characterised in that：The active material, according to
Weight percent meter, including fluorination azanol 80%, metal active salt 15%, activator 2%, corrosion inhibiter 3%.
3. a kind of No-cleaning liquid aluminum flux as described in claim 1, it is characterised in that：The metal active salt is fluorine
Change tin, stannous fluoride, stannous fluoboric acid, stannous chloride, zinc fluoride, zinc fluoroborate, zinc chloride and one kind in bismuth chloride or one
Kind or more combination.
4. a kind of No-cleaning liquid aluminum flux as described in claim 1, it is characterised in that：The activator is diethylamine
One or more kinds of combinations in hydrochloride, triethylamine hydrochloride, lithium fluoride, sodium fluoride, magnesium fluoride and aluminum fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611188330.3A CN108202190A (en) | 2016-12-20 | 2016-12-20 | A kind of No-cleaning liquid aluminum flux and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611188330.3A CN108202190A (en) | 2016-12-20 | 2016-12-20 | A kind of No-cleaning liquid aluminum flux and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108202190A true CN108202190A (en) | 2018-06-26 |
Family
ID=62604263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611188330.3A Pending CN108202190A (en) | 2016-12-20 | 2016-12-20 | A kind of No-cleaning liquid aluminum flux and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108202190A (en) |
-
2016
- 2016-12-20 CN CN201611188330.3A patent/CN108202190A/en active Pending
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| PB01 | Publication | ||
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Application publication date: 20180626 |