CN114012306A - Water-based soldering flux and preparation method thereof - Google Patents
Water-based soldering flux and preparation method thereof Download PDFInfo
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- CN114012306A CN114012306A CN202111616762.0A CN202111616762A CN114012306A CN 114012306 A CN114012306 A CN 114012306A CN 202111616762 A CN202111616762 A CN 202111616762A CN 114012306 A CN114012306 A CN 114012306A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 230000004907 flux Effects 0.000 title claims abstract description 26
- 238000005476 soldering Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000007716 flux method Methods 0.000 title description 2
- 230000007797 corrosion Effects 0.000 claims abstract description 77
- 238000005260 corrosion Methods 0.000 claims abstract description 77
- 239000011259 mixed solution Substances 0.000 claims abstract description 69
- 239000002994 raw material Substances 0.000 claims abstract description 58
- 239000003112 inhibitor Substances 0.000 claims abstract description 50
- 238000002156 mixing Methods 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 33
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 23
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 23
- 150000007524 organic acids Chemical class 0.000 claims abstract description 22
- 239000008367 deionised water Substances 0.000 claims abstract description 21
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims abstract description 20
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 20
- 229920000151 polyglycol Polymers 0.000 claims abstract description 20
- 239000010695 polyglycol Substances 0.000 claims abstract description 20
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 17
- ALRHLSYJTWAHJZ-UHFFFAOYSA-N 3-hydroxypropionic acid Chemical compound OCCC(O)=O ALRHLSYJTWAHJZ-UHFFFAOYSA-N 0.000 claims description 16
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 16
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 16
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 15
- -1 compound organic acid Chemical class 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- DBXBTMSZEOQQDU-GSVOUGTGSA-N (r)-3-hydroxyisobutyric acid Chemical compound OC[C@@H](C)C(O)=O DBXBTMSZEOQQDU-GSVOUGTGSA-N 0.000 claims description 8
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 8
- RILZRCJGXSFXNE-UHFFFAOYSA-N 2-[4-(trifluoromethoxy)phenyl]ethanol Chemical compound OCCC1=CC=C(OC(F)(F)F)C=C1 RILZRCJGXSFXNE-UHFFFAOYSA-N 0.000 claims description 8
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- KJTLQQUUPVSXIM-UHFFFAOYSA-N mevalonic acid Chemical compound OCCC(O)(C)CC(O)=O KJTLQQUUPVSXIM-UHFFFAOYSA-N 0.000 claims description 8
- 239000012856 weighed raw material Substances 0.000 claims description 8
- 239000004210 ether based solvent Substances 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 238000001556 precipitation Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 230000005764 inhibitory process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 150000001298 alcohols Chemical class 0.000 description 6
- 238000006056 electrooxidation reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B23K35/40—Making wire or rods for soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to the technical field of soldering flux and discloses a water-based soldering flux and a preparation method thereof, wherein a measured water-soluble rosin resin ingredient raw material is dissolved in a measured solvent ingredient raw material, deionized water is added for mixing treatment to prepare a first mixed solution, a measured organic acid ingredient raw material and the first mixed solution are mixed to prepare a second mixed solution, the measured organic acid ingredient raw material with a compound is mixed with the second mixed solution, the mixture is continuously stirred for 1 hour until the organic acid ingredient raw material with the compound is completely dissolved, the rest deionized water is added, the mixture is stirred at the speed of 2500 minus 3000 rpm for 1 hour and then is kept stand for 4 hours to prepare a third mixed solution, the measured raw material with a corrosion inhibitor ingredient and the third mixed solution are mixed and stirred for 20 to 30 minutes to prepare a fourth mixed solution, the measured alkyl dibasic acid, And fully stirring the raw materials of the polyglycol component and the fourth mixed solution, and uniformly dispersing to obtain a finished product.
Description
Technical Field
The invention relates to the technical field of soldering flux, in particular to water-based soldering flux and a preparation method thereof.
Background
The soldering flux can help and promote the soldering process in the soldering process, and has chemical substances with protective effect and oxidation reaction prevention function. Fluxes can be divided into solids, liquids and gases. The method mainly comprises the following aspects of auxiliary heat conduction, oxide removal, surface tension reduction of welded materials, oil stain removal of the surfaces of the welded materials, welding area increase, reoxidation prevention and the like, and two more critical functions in the aspects are as follows: the method is characterized by comprising the following steps of removing oxides and reducing the surface tension of welded materials, but certain soldering fluxes generate certain amount of corrosion when being used for aluminum materials, so that welded objects are easy to corrode and break, and the safety of users is influenced dangerously.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the water-based soldering flux and the preparation method thereof, which have the advantages of corrosion inhibition on aluminum and the like, and solve the problem that certain soldering flux generates a certain amount of corrosion when used on aluminum materials, so that welded objects are easy to corrode and break, and the safety of users is affected by danger.
In order to achieve the purpose of inhibiting corrosion to aluminum, the invention provides the following technical scheme: a water-based soldering flux comprises the following raw materials in percentage by mass:
0.3 to 1 percent of alkyl dibasic acid
1-4% of polyglycol
2-4% of water-soluble rosin resin
60 to 70 percent of organic acid
0.5 to 3 percent of compound organic acid
20-30% of solvent
1 to 3 percent of corrosion inhibitor
The balance of deionized water.
Preferably, the alkyl dibasic acid refers to a straight chain organic acid with two carboxyl groups.
Preferably, the polyglycol refers to a polymer of an alcohol substance having two hydroxyl groups.
Preferably, the water-soluble rosin resin is easily soluble in the alcohol ether solvent, and the mass percentage content of the water-soluble rosin resin in the water-based soldering flux can be 2.0%, 2.3%, 2.5%, 2.7%, 3.0%, 3.4%, 3.6%, 3.8%, 4.0% and the like.
Preferably, the compound is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxypentanoic acid, fluoroboric acid.
A preparation method of water-based soldering flux comprises the following steps:
a, dissolving a measured water-soluble rosin resin component raw material into a measured solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with the compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the balance of deionized water, stirring at the speed of 2500-;
step D, mixing the measured raw materials with the corrosion inhibitor components with the third mixed solution, and stirring for 20-30 minutes to prepare a fourth mixed solution;
and E, fully stirring the weighed raw materials containing the alkyl dibasic acid and the polyglycol with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
Compared with the prior art, the invention provides the water-based soldering flux and the preparation method thereof, and the water-based soldering flux has the following advantages:
1. the water-based scaling powder and the preparation method thereof can prevent or slow down the chemical substances or compounds of material corrosion when mixed corrosion inhibitor exists in the environment (medium) in proper concentration and form, the corrosion inhibitor can be divided into inorganic corrosion inhibitor, organic corrosion inhibitor and polymer corrosion inhibitor according to chemical components, and has corrosion inhibition effect on the corrosion of aluminum, because the insoluble complex generated by the reaction of the corrosion inhibitor and aluminum ions is coated on the surface of the aluminum, the corrosion of the aluminum in alkaline aqueous solution is inhibited.
2. The water-based scaling powder and the preparation method thereof are characterized in that a mixed precipitation film type corrosion inhibitor is adopted, and the precipitation film can be generated by the interaction between corrosion inhibitor molecules and also can be generated by the interaction between the corrosion inhibitor and metal ions in a corrosion medium. In most cases, a precipitation film is formed in the cathode region and covers the cathode surface to separate the metal from the corrosive medium and inhibit electrochemical corrosion of the metal.
Detailed Description
Example one
The invention provides the technical scheme that: a water-based soldering flux and a preparation method thereof comprise the following raw materials by mass percent:
0.3 to 1 percent of alkyl dibasic acid
1-4% of polyglycol
2-4% of water-soluble rosin resin
60 to 70 percent of organic acid
0.5 to 3 percent of compound organic acid
20-30% of solvent
1 to 3 percent of corrosion inhibitor
The balance of deionized water;
the alkyl dibasic acid is straight chain organic acid with two carboxyl groups;
polyglycol refers to a polymer of alcohols with two hydroxyl groups;
the water-soluble rosin resin is easy to dissolve in alcohol ether solvents, and the mass percentage content of the water-soluble rosin resin in the water-based soldering flux can be 2.0%, 2.3%, 2.5%, 2.7%, 3.0%, 3.4%, 3.6%, 3.8%, 4.0% and the like;
is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxypentanoic acid, fluoroboric acid.
A preparation method of water-based soldering flux comprises the following steps:
a, dissolving a measured water-soluble rosin resin component raw material into a measured solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with the compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the balance of deionized water, stirring at the speed of 2500-;
step D, mixing the measured raw materials with the corrosion inhibitor components with the third mixed solution, and stirring for 20-30 minutes to prepare a fourth mixed solution;
and E, fully stirring the weighed raw materials containing the alkyl dibasic acid and the polyglycol with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
The corrosion inhibitor is a chemical substance or a compound which can prevent or slow down the corrosion of materials when existing in the environment (medium) in a proper concentration and form, and can be divided into an inorganic corrosion inhibitor, an organic corrosion inhibitor and a polymer corrosion inhibitor according to chemical components, and has a corrosion inhibition effect on the corrosion of aluminum.
Example two
On the basis of the first embodiment, the alkyl dibasic acid is a straight chain organic acid with two carboxyl groups;
polyglycol refers to a polymer of alcohols with two hydroxyl groups;
the water-soluble rosin resin is easily dissolved in alcohol ether solvents, and is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxyvaleric acid and fluoroboric acid;
a, dissolving a 2% water-soluble rosin resin component raw material into a 25% solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured 60% organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with 0.5 percent of the compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the rest of deionized water, stirring at the speed of 2500-3000 rpm for 1 hour, and standing for 4 hours to prepare a third mixed solution;
step D, mixing and stirring the raw materials with 1% of corrosion inhibitor or precipitation film type corrosion inhibitor component with the third mixed solution for 20-30 minutes to prepare a fourth mixed solution;
and E, sufficiently stirring the weighed raw materials containing 0.3% of alkyl dibasic acid and 1% of polyglycol component with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
The corrosion inhibitor is a chemical substance or a compound which can prevent or slow down the corrosion of materials when existing in an environment (medium) in a proper concentration and form, and can be divided into an inorganic corrosion inhibitor, an organic corrosion inhibitor and a polymer corrosion inhibitor according to chemical components, and has a corrosion inhibition effect on the corrosion of aluminum. In most cases, a precipitation film is formed in the cathode region and covers the cathode surface to separate the metal from the corrosive medium and inhibit electrochemical corrosion of the metal.
EXAMPLE III
On the basis of the first embodiment, the alkyl dibasic acid is a straight chain organic acid with two carboxyl groups;
polyglycol refers to a polymer of alcohols with two hydroxyl groups;
the water-soluble rosin resin is easily dissolved in alcohol ether solvents, and is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxyvaleric acid and fluoroboric acid;
step A, dissolving a 2.3% water-soluble rosin resin component raw material into a 25% measured solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured 60% organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with 0.6 percent of compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the rest of deionized water, stirring at the speed of 2500-3000 rpm for 1 hour, and standing for 4 hours to prepare a third mixed solution;
step D, mixing and stirring the raw materials with 1% of corrosion inhibitor or precipitation film type corrosion inhibitor component with the third mixed solution for 20-30 minutes to prepare a fourth mixed solution;
and E, sufficiently stirring the weighed raw materials containing 0.3% of alkyl dibasic acid and 1% of polyglycol component with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
The corrosion inhibitor is a chemical substance or a compound which can prevent or slow down the corrosion of materials when existing in an environment (medium) in a proper concentration and form, and can be divided into an inorganic corrosion inhibitor, an organic corrosion inhibitor and a polymer corrosion inhibitor according to chemical components, and has a corrosion inhibition effect on the corrosion of aluminum. In most cases, a precipitation film is formed in the cathode region and covers the cathode surface to separate the metal from the corrosive medium and inhibit electrochemical corrosion of the metal.
Example four
On the basis of the first embodiment, the alkyl dibasic acid is a straight chain organic acid with two carboxyl groups;
polyglycol refers to a polymer of alcohols with two hydroxyl groups;
the water-soluble rosin resin is easily dissolved in alcohol ether solvents, and is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxyvaleric acid and fluoroboric acid;
step A, dissolving a 2.5% water-soluble rosin resin component raw material into a 22% solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured 65% organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with 0.6 percent of compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the rest of deionized water, stirring at the speed of 2500-3000 rpm for 1 hour, and standing for 4 hours to prepare a third mixed solution;
step D, mixing and stirring the raw materials with 1% of corrosion inhibitor or precipitation film type corrosion inhibitor component with the third mixed solution for 20-30 minutes to prepare a fourth mixed solution;
and E, sufficiently stirring the weighed raw materials containing 0.4% of alkyl dibasic acid and 2% of polyglycol component with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
The corrosion inhibitor is a chemical substance or a compound which can prevent or slow down the corrosion of materials when existing in an environment (medium) in a proper concentration and form, and can be divided into an inorganic corrosion inhibitor, an organic corrosion inhibitor and a polymer corrosion inhibitor according to chemical components, and has a corrosion inhibition effect on the corrosion of aluminum. In most cases, a precipitation film is formed in the cathode region and covers the cathode surface to separate the metal from the corrosive medium and inhibit electrochemical corrosion of the metal.
EXAMPLE five
On the basis of the first embodiment, the alkyl dibasic acid is a straight chain organic acid with two carboxyl groups;
polyglycol refers to a polymer of alcohols with two hydroxyl groups;
the water-soluble rosin resin is easily dissolved in alcohol ether solvents, and is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxyvaleric acid and fluoroboric acid;
step A, dissolving a 2.7% water-soluble rosin resin component raw material into a 22% solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured 65% organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with 0.7 percent of the compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the rest of deionized water, stirring at the speed of 2500-3000 rpm for 1 hour, and standing for 4 hours to prepare a third mixed solution;
step D, mixing and stirring the raw materials which are weighed and contain 1.2 percent of corrosion inhibitor or precipitation film type corrosion inhibitor with the third mixed solution for 20-30 minutes to prepare a fourth mixed solution;
and E, sufficiently stirring the weighed raw materials containing 0.4% of alkyl dibasic acid and 2% of polyglycol component with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
The corrosion inhibitor is a chemical substance or a compound which can prevent or slow down the corrosion of materials when existing in an environment (medium) in a proper concentration and form, and can be divided into an inorganic corrosion inhibitor, an organic corrosion inhibitor and a polymer corrosion inhibitor according to chemical components, and has a corrosion inhibition effect on the corrosion of aluminum. In most cases, a precipitation film is formed in the cathode region and covers the cathode surface to separate the metal from the corrosive medium and inhibit electrochemical corrosion of the metal.
EXAMPLE six
On the basis of the first embodiment, the alkyl dibasic acid is a straight chain organic acid with two carboxyl groups;
polyglycol refers to a polymer of alcohols with two hydroxyl groups;
the water-soluble rosin resin is easily dissolved in alcohol ether solvents, and is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxyvaleric acid and fluoroboric acid;
step A, dissolving a 3.0% water-soluble rosin resin component raw material into a 22% solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured 65% organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with 0.6 percent of compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the rest of deionized water, stirring at the speed of 2500-3000 rpm for 1 hour, and standing for 4 hours to prepare a third mixed solution;
step D, mixing and stirring the measured raw materials containing 2.2% of corrosion inhibitor or precipitation film type corrosion inhibitor with the third mixed solution for 20-30 minutes to prepare a fourth mixed solution;
and E, sufficiently stirring the weighed raw materials containing 0.4% of alkyl dibasic acid and 2% of polyglycol component with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
The corrosion inhibitor is a chemical substance or a compound which can prevent or slow down the corrosion of materials when existing in an environment (medium) in a proper concentration and form, and can be divided into an inorganic corrosion inhibitor, an organic corrosion inhibitor and a polymer corrosion inhibitor according to chemical components, and has a corrosion inhibition effect on the corrosion of aluminum. In most cases, a precipitation film is formed in the cathode region and covers the cathode surface to separate the metal from the corrosive medium and inhibit electrochemical corrosion of the metal.
Claims (6)
1. A water-based soldering flux and a preparation method thereof comprise the following raw materials by mass percent:
0.3 to 1 percent of alkyl dibasic acid,
1-4% of polyglycol,
2-4% of water-soluble rosin resin,
60-70% of organic acid,
0.5 to 3 percent of compound organic acid,
20-30% of solvent,
1-3% of corrosion inhibitor,
The balance of deionized water.
2. The water-based flux according to claim 1, wherein: the alkyl dibasic acid is a straight chain organic acid with two carboxyl groups.
3. The water-based flux according to claim 1, wherein: the polyglycol refers to a polymer of an alcohol substance with two hydroxyl groups.
4. The water-based flux according to claim 1, wherein: the water-soluble rosin resin is easy to dissolve in alcohol ether solvents, and the mass percentage content of the water-soluble rosin resin in the water-based soldering flux can be 2.0%, 2.3%, 2.5%, 2.7%, 3.0%, 3.4%, 3.6%, 3.8%, 4.0% and the like.
5. The water-based flux according to claim 1, wherein: the compound is 2-hydroxypropionic acid, levorotatory 3-hydroxypropionic acid, glutaric acid, glycolic acid, citric acid, D-beta-hydroxyisobutyric acid, 3-methyl-3, 5-dihydroxyvaleric acid, n-valeric acid, DL-alpha-amino-beta-hydroxyvaleric acid and fluoroboric acid.
6. A preparation method of water-based soldering flux comprises the following steps:
a, dissolving a measured water-soluble rosin resin component raw material into a measured solvent component raw material, adding deionized water for mixing, and preparing a first mixed solution;
b, mixing the measured organic acid component raw material with the first mixed solution to prepare a second mixed solution;
step C, mixing the measured raw materials with the compound organic acid component with the second mixed solution, continuing stirring for 1 hour until the raw materials are completely dissolved, adding the balance of deionized water, stirring at the speed of 2500-;
step D, mixing the measured raw materials with the corrosion inhibitor components with the third mixed solution, and stirring for 20-30 minutes to prepare a fourth mixed solution;
and E, fully stirring the weighed raw materials containing the alkyl dibasic acid and the polyglycol with the fourth mixed solution, and uniformly dispersing to obtain a finished product.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551452A (en) * | 2014-12-26 | 2015-04-29 | 惠州市强达电子工业有限公司 | Water-based soldering flux and preparation method thereof |
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| CN106624464A (en) * | 2016-11-30 | 2017-05-10 | 重庆微世特电子材料有限公司 | Water-based flux |
| CN110449773A (en) * | 2019-09-02 | 2019-11-15 | 重庆理工大学 | A kind of multifunctional solvent type scaling powder free of cleaning |
| CN110449770A (en) * | 2019-09-02 | 2019-11-15 | 重庆理工大学 | A kind of low VOC low-corrosiveness environmentally-friendly water-based soldering flux |
| EP3584030A1 (en) * | 2018-05-30 | 2019-12-25 | Stannol GmbH & Co. KG | No-clean flux systems and solder for soft soldering of aluminium |
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2021
- 2021-12-28 CN CN202111616762.0A patent/CN114012306A/en active Pending
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| CN104551452A (en) * | 2014-12-26 | 2015-04-29 | 惠州市强达电子工业有限公司 | Water-based soldering flux and preparation method thereof |
| CN106624464A (en) * | 2016-11-30 | 2017-05-10 | 重庆微世特电子材料有限公司 | Water-based flux |
| CN106493487A (en) * | 2016-12-08 | 2017-03-15 | 深圳市合明科技有限公司 | Water-based scaling powder and preparation method and application |
| EP3584030A1 (en) * | 2018-05-30 | 2019-12-25 | Stannol GmbH & Co. KG | No-clean flux systems and solder for soft soldering of aluminium |
| CN110449773A (en) * | 2019-09-02 | 2019-11-15 | 重庆理工大学 | A kind of multifunctional solvent type scaling powder free of cleaning |
| CN110449770A (en) * | 2019-09-02 | 2019-11-15 | 重庆理工大学 | A kind of low VOC low-corrosiveness environmentally-friendly water-based soldering flux |
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