CN108788521B - Transformer flux and preparation method thereof - Google Patents
Transformer flux and preparation method thereof Download PDFInfo
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- CN108788521B CN108788521B CN201810686330.9A CN201810686330A CN108788521B CN 108788521 B CN108788521 B CN 108788521B CN 201810686330 A CN201810686330 A CN 201810686330A CN 108788521 B CN108788521 B CN 108788521B
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- acid
- soldering flux
- transformer
- transformer soldering
- mass
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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
- B23K35/3612—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
- B23K35/3613—Polymers, e.g. resins
-
- 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
Abstract
The invention discloses a transformer soldering flux which is prepared from the following components in percentage by mass: compound modified rosin 30-50%, ethyl acetate 20-30%, ethylene glycol ether 10-20%, turpentine 5-10%, neodecanoic acid 2-4% and activator 1-5%; the sum of the mass percentages of the components is 100 percent. The invention also provides a preparation method of the transformer soldering flux. The transformer soldering flux improves the volatilization rate at high temperature, avoids white crystals, has high insulation resistance after welding, does not need cleaning, ensures continuous operation of a machine, can adapt to the continuity of the process, and reduces the production cost.
Description
Technical Field
The invention relates to the field of transformer materials, in particular to a transformer soldering flux and a preparation method thereof.
Background
At present, white crystals are precipitated after the scaling powder used for the IPC material is stored for a long time under high rosin, and the scaling powder cannot be stored for a long time. The temperature of the general soldering tin of network transformer is 400 ℃, reach corresponding temperature and just can go the enameled wire, along with the acceleration of automation process, the machine has now replaced the artifical operation of being stained with scaling powder soldering tin of being stained with, and scaling powder groove and tin stove distance can not too far away, if the distance is too far away very make solvent volatilize too fast, lead to the bottom of scaling powder groove all be white crystallization, the crystallization accumulation makes the machine continuous operation inconvenient, reduce work efficiency, can not satisfy the technological requirement.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objects of the present invention is to provide a transformer flux, which improves the volatilization rate at high temperature, avoids the generation of white crystals, has high insulation resistance after welding, does not need cleaning, enables continuous operation of a machine, can adapt to the continuity of the process, and reduces the production cost.
The invention also aims to provide a preparation method of the transformer soldering flux, which mixes the raw materials in sequence, fully and uniformly stirs the raw materials to ensure that the raw materials can be completely dissolved, and has simple steps and easy operation.
One of the purposes of the invention is realized by adopting the following technical scheme:
the transformer soldering flux is prepared from the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
Further, the transformer soldering flux is prepared from the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
Further, the transformer soldering flux is prepared from the following components in percentage by mass:
further, the compound modified rosin is rosin pentaerythritol ester or rosin glyceride.
Further, the active agent is one or any combination of succinic acid, adipic acid, glutaric acid, itaconic acid, glycolic acid, neodecanoic acid, malic acid and salicylic acid.
The second purpose of the invention is realized by adopting the following technical scheme:
a preparation method of the transformer soldering flux comprises the following steps,
material preparation: weighing compound modified rosin, ethyl acetate, ethylene glycol ether, turpentine, neodecanoic acid and an active agent according to the proportion for later use;
mixing: mixing ethyl acetate, ethylene glycol ethyl ether and turpentine, adding the compound modified rosin, adding new decanoic acid and an active agent while stirring, uniformly stirring, and completely dissolving to obtain the transformer soldering flux.
Further, in the mixing step, the stirring speed is 300-600r/min, and the stirring time is 40-60 min.
Compared with the prior art, the invention has the beneficial effects that:
(1) the transformer soldering flux improves the volatilization rate at high temperature, avoids white crystals, has high insulation resistance after welding, does not need cleaning, ensures continuous operation of a machine, can adapt to the continuity of the process, and reduces the production cost;
(2) according to the preparation method of the transformer soldering flux, the ethyl acetate, the ethylene glycol ethyl ether and the turpentine are mixed, the compound modified rosin is added, the neodecanoic acid and the activator are added while stirring, the mixture is mixed in sequence and fully and uniformly stirred, so that the raw materials can be completely dissolved, and the steps are simple and easy to operate.
Drawings
FIG. 1 is a graph showing the effect of corrosion of the copper plate in example 1;
FIG. 2 is a graph showing the effect of corrosion of the copper plate in example 2;
FIG. 3 is a graph showing the effect of corrosion of the copper plate in example 3.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The transformer soldering flux is prepared from the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
As a further implementation mode, the transformer soldering flux is prepared from the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
As a further implementation mode, the transformer soldering flux is prepared from the following components in percentage by mass:
as a further embodiment, the compound modified rosin is rosin pentaerythritol ester or rosin glycerol ester.
As a further embodiment, the active agent is one or any combination of succinic acid, adipic acid, glutaric acid, itaconic acid, glycolic acid, neodecanoic acid, malic acid, and salicylic acid.
The preparation method of the transformer soldering flux comprises the following steps,
material preparation: weighing compound modified rosin, ethyl acetate, ethylene glycol ether, turpentine, neodecanoic acid and an active agent according to the proportion for later use;
mixing: mixing ethyl acetate, ethylene glycol ethyl ether and turpentine, adding the compound modified rosin, adding new decanoic acid and an active agent while stirring, uniformly stirring, and completely dissolving to obtain the transformer soldering flux.
As a further embodiment, in the mixing step, the stirring speed is 300-600r/min, and the stirring time is 40-60 min.
The following are specific examples of the present invention, and raw materials, equipments and the like used in the following examples can be obtained by purchasing them unless otherwise specified.
Examples 1 to 5:
the compositions and amounts of examples 1-5 are shown in the table below.
TABLE 1 compounding ratio of examples 1-5 and comparative examples 1-2
The transformer flux of examples 1-5 and comparative examples 1-2 was prepared by the following method,
material preparation: weighing compound modified rosin, ethyl acetate, ethylene glycol ether, turpentine, neodecanoic acid and an active agent according to the proportion for later use;
mixing: mixing ethyl acetate, ethylene glycol ethyl ether and turpentine, adding the compound modified rosin, adding new decanoic acid and an active agent while stirring, uniformly stirring at the stirring speed of 300-600r/min for 40-60min, and completely dissolving to obtain the transformer soldering flux.
Comparative example 3:
comparative example 3 is different from example 1 in that the preparation method of comparative example 3 includes: mixing the compound modified rosin, ethyl acetate, ethylene glycol ethyl ether, turpentine, neodecanoic acid and the active agent according to the proportion, uniformly stirring at the stirring speed of 300-600r/min for 40-60min, and completely dissolving to obtain the transformer soldering flux.
Effect evaluation and Performance detection
The effects of soldering examples 1 to 5 and comparative examples 1 to 3 were examined with Sn-0.7Cu based solder according to the IPC-TM-6502.6.15 test method Table I, and the results are shown in Table 2.
Table 2 copper plate corrosion results
As can be seen from Table 2 and the copper plate corrosion effect graphs of examples 1-3 of FIGS. 1-3, the transformer flux of examples 1-5 has no corrosion of the copper plate after welding, spreading rate after welding is above 90%, no pungent odor is generated during welding, solid residues after welding are uniformly spread and can be cleaned, surface insulation resistance is greater than 2.0 x 1011 omega, and welding spots are bright, wherein the effect of example 5 is the best. The copper plates of the soldering flux of comparative examples 1-2 were slightly corroded after soldering and the spreading rate was low, which indicates that the effect of the soldering flux of the present invention is caused by the synergistic effect of the formulation and the content, and the formulation outside the range or not the specific formulation can not obtain the desired effect. The copper plate of the soldering flux of comparative example 3 was severely corroded after soldering and the spreading rate was the lowest, which shows that the preparation method of the present invention increases the components in a specific order, so that the soldering flux is effective.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (4)
1. The transformer soldering flux is characterized by being prepared from the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent;
the compound modified rosin is rosin pentaerythritol ester or rosin glyceride; the active agent is one or any combination of succinic acid, adipic acid, glutaric acid, itaconic acid, glycolic acid, neodecanoic acid, malic acid and salicylic acid;
the preparation method of the transformer soldering flux comprises the following steps:
material preparation: weighing compound modified rosin, ethyl acetate, ethylene glycol ether, turpentine, neodecanoic acid and an active agent according to the proportion for later use;
mixing: mixing ethyl acetate, ethylene glycol ethyl ether and turpentine, adding the compound modified rosin, adding new decanoic acid and an active agent while stirring, uniformly stirring at the stirring speed of 300-600r/min for 40-60min, and completely dissolving to obtain the transformer soldering flux.
2. The transformer soldering flux according to claim 1, which is prepared from the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
3. The transformer soldering flux according to claim 2, which is prepared from the following components in percentage by mass:
4. the method for preparing the transformer soldering flux according to any one of claims 1 to 3, comprising,
material preparation: weighing compound modified rosin, ethyl acetate, ethylene glycol ether, turpentine, neodecanoic acid and an active agent according to the proportion for later use;
mixing: mixing ethyl acetate, ethylene glycol ethyl ether and turpentine, adding the compound modified rosin, adding new decanoic acid and an active agent while stirring, uniformly stirring at the stirring speed of 300-600r/min for 40-60min, and completely dissolving to obtain the transformer soldering flux.
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| CN201810686330.9A CN108788521B (en) | 2018-06-28 | 2018-06-28 | Transformer flux and preparation method thereof |
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| CN201810686330.9A CN108788521B (en) | 2018-06-28 | 2018-06-28 | Transformer flux and preparation method thereof |
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| CN108788521B true CN108788521B (en) | 2021-08-10 |
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| CN101143407A (en) * | 2007-10-24 | 2008-03-19 | 汕头市骏码凯撒有限公司 | Soldering paste and its preparation method |
| CN101244491A (en) * | 2008-03-21 | 2008-08-20 | 天津市青禾科技发展有限公司 | Lead-free solder solder paste for electronic industry and method for manufacturing soldering fluid |
| CN101380699A (en) * | 2008-10-20 | 2009-03-11 | 西安理工大学 | Pig tin series leadless alloy soldering paste and preparation method thereof |
| CN103962753A (en) * | 2013-01-29 | 2014-08-06 | 株式会社田村制作所 | Soldering flux and soldering paste |
| CN105234591A (en) * | 2015-10-10 | 2016-01-13 | 广州有色金属研究院 | Halogen-free soldering tin wire activator and preparation method thereof |
| JP2017064783A (en) * | 2015-09-30 | 2017-04-06 | 株式会社タムラ製作所 | Flux composition and solder paste |
| CN107498214A (en) * | 2016-11-29 | 2017-12-22 | 广东剑鑫科技股份有限公司 | Special cleaning-free scaling powders of the outer PIN of network transformer and preparation method thereof |
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2018
- 2018-06-28 CN CN201810686330.9A patent/CN108788521B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143407A (en) * | 2007-10-24 | 2008-03-19 | 汕头市骏码凯撒有限公司 | Soldering paste and its preparation method |
| CN101244491A (en) * | 2008-03-21 | 2008-08-20 | 天津市青禾科技发展有限公司 | Lead-free solder solder paste for electronic industry and method for manufacturing soldering fluid |
| CN101380699A (en) * | 2008-10-20 | 2009-03-11 | 西安理工大学 | Pig tin series leadless alloy soldering paste and preparation method thereof |
| CN103962753A (en) * | 2013-01-29 | 2014-08-06 | 株式会社田村制作所 | Soldering flux and soldering paste |
| JP2017064783A (en) * | 2015-09-30 | 2017-04-06 | 株式会社タムラ製作所 | Flux composition and solder paste |
| CN105234591A (en) * | 2015-10-10 | 2016-01-13 | 广州有色金属研究院 | Halogen-free soldering tin wire activator and preparation method thereof |
| CN107498214A (en) * | 2016-11-29 | 2017-12-22 | 广东剑鑫科技股份有限公司 | Special cleaning-free scaling powders of the outer PIN of network transformer and preparation method thereof |
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