CN107984118A - A kind of preparation method of brazing cream - Google Patents
A kind of preparation method of brazing cream Download PDFInfo
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- CN107984118A CN107984118A CN201711361450.3A CN201711361450A CN107984118A CN 107984118 A CN107984118 A CN 107984118A CN 201711361450 A CN201711361450 A CN 201711361450A CN 107984118 A CN107984118 A CN 107984118A
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- China
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- weight
- solder
- lotion
- brazing
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Classifications
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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
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention discloses a kind of preparation method of brazing cream, comprises the following steps：1) solder is weighed and into each component in lotion by suitable proportioning；Lotion and solder are smelted into respectively into each component in lotion and solder by what is weighed again, then weigh each component by appropriate proportioning again；2) solder weighed and brazing flux are added again described into lotion, are stirred 30~45 minutes, stir evenly, obtain brazing cream, to obtain the final product.The method of the present invention does not have fluorine-containing material by using a small amount of brazing flux in the brazing flux used, has used organic substance, has obvious low corrosivity to part；And solder is by the tin of specific proportioning, silver with copper into the fusing point of obtained brazing cream is low, is easy to weld.
Description
Technical field
The present invention relates to a kind of preparation method of brazing cream, belong to technical field of welding materials.
Background technology
As modernization industry automates the development of soldering high efficiency large-scale production, welding workpiece small batch
Production, weld shape constantly variation complicate.Traditional filiform, ring-type, strip is substituted to weld with paste-like soldering material-solder paste
Connect material and realize that high-efficiency automatic welding production has been trend of the times.China's advanced automation pricker of continuous Introduced From Abroad in recent years
Production line is welded, such as flame automatic brazing production line, protective atmosphere meshbeltfurnace brazing lines；It is domestic at the same time also to have many producers certainly
Master develops more advanced automation brazing lines, to meet ever-increasing market demand.Welded with traditional Cu alloys
Silk, weld-ring are compared with solder strip, are combined using brazing cream and automatic dropping glue equipment, can to complex parts and irregular part into
Row automation paint, the part to be welded after application is brazed into continous way soldering oven, so as to fulfill the continuous of whole welding procedure
Change and automate.Joint element intensity height, weld seam beauty and corrosion resistance after welding is good.
But brazing flux content is high in current brazing cream, since borofluoride has strong corrosivity at high temperature, for
Excessive corrosion and destruction can be caused by weldering part and brazing equipment, postwelding needs to clean part, in welding process
Corrosivity volatile matter can also bring a series of problems to working environment and environmental protection.
The content of the invention
It is an object of the invention to provide a kind of preparation method of brazing cream, the brazing cream that this method obtains contains a small amount of
Brazing flux, has part obvious low corrosivity, and fusing point is low, is easily assembled to, good fluidity, joint element intensity after welding, and
It is small to the harmfulness of environment.
To reach above-mentioned purpose, the present invention provides following technical solution：
On the one hand, the present invention provides a kind of brazing cream, includes each component of following parts by weight：70~85 parts of solder, into
15~22 parts of lotion, and dosage be 5~8 parts of solder quality brazing flux, wherein, the solder by 94~96 weight % tin, 3
The silver of~4 weight % and the copper of 1~1.5 weight % form；The brazing flux in decanedioic acid, succinic acid and laurate at least
It is a kind of；It is described to include following component into lotion：The poly- second propylene of 14~16 weight %, the solvent of 65~95 weight %, 2~3 weights
Measure the nonionic surface active agent of % and the activator of 0.8~1.1 weight %.
Further, the solder is made of the copper of the tin of 95 weight %, the silver of 4 weight % and 1 weight %.
Further, it is described to include following component into lotion：The poly- second propylene of 15 weight %, the solvent of 81 weight %, 3 weights
Measure the nonionic surface active agent of % and the activator of 1 weight %.
Further, the solvent is diethylene glycol monoethyl ether or dipropylene glycol monomethyl ether.
Further, the nonionic surface active agent is fatty glyceride.
Further, the activator is unrighted acid and/or animal oil.
Further, the brazing cream includes each component of following parts by weight：75 parts of solder, into 18 parts of lotion, and
Dosage is the brazing flux of 7 parts of solder quality.
On the other hand, the present invention also provides a kind of preparation method of above-mentioned brazing cream, comprise the following steps：
1) solder is weighed and into each component in lotion by suitable proportioning；It will weigh again into each in lotion and solder
Component is smelted into lotion and solder respectively, then weighs each component by appropriate proportioning again；
2) solder weighed and brazing flux are added again described into lotion, is stirred 30~45 minutes, stirs evenly, obtain
To brazing cream, to obtain the final product.
Further, in step 1), it will weigh into each component in lotion and be smelted into cream at 90~140 DEG C
Body.
Further, it will weigh into each component in lotion and be smelted into lotion at 120 DEG C.
Further, in step 1), the solder that will weigh, in crucible, at 1150~1250 DEG C, and in vacuum bar
Melting under part.
Further, the melting at 1180 DEG C.
The beneficial effects of the present invention are：By using a small amount of brazing flux, and there is no fluorine-containing material in the brazing flux used,
Organic substance has been used, there is obvious low corrosivity to part；And solder by the tin of specific proportioning, silver and copper into,
The fusing point of obtained brazing cream is low, is easy to weld；In addition, unrighted acid and animal oil are added in the preparation process of lotion
Deng activator, solder and solder and the combination power on organic moiety surface are considerably increased, is conducive to anti-layering and the mistake of brazing cream
Pipe, technologic guarantee is provided to automate, mass producing；And by controlling the parameter in preparation method so that system
The brazing cream performance obtained is more excellent.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, described in detail below with presently preferred embodiments of the present invention as after.
Embodiment
With reference to embodiment, the embodiment of the present invention is described in further detail.Following embodiments are used for
Illustrate the present invention, but be not limited to the scope of the present invention.
Embodiment 1
1) each component in solder is weighed by the proportioning of the copper of the tin of 95 weight %, the silver of 4 weight % and 1 weight %, then
By each component solder in the solder weighed in crucible, at 1180 DEG C, and solder is smelted under vacuum condition；By 15 weights
Measure poly- second propylene, the diethylene glycol monoethyl ether of 81 weight % of %, the fatty glyceride of 3 weight %, and the insatiable hunger of 1 weight %
The each component in lotion is weighed into the proportioning of aliphatic acid, lotion is smelted into at 120 DEG C；
2) solder weighed and decanedioic acid are added again described into lotion, is stirred 30 minutes, stirs evenly, obtain
Fused materials mixture, obtains brazing cream, to obtain the final product.
By obtained brazing cream, it is mainly used for welding low-carbon steel part, postwelding piece surface noresidue, weld seam is fine and closely woven, and
And there is very high weld strength；In addition the corrosion-free phenomenon of part is produced.
Embodiment 2
1) each component in solder is weighed by the proportioning of the copper of the tin of 95 weight %, the silver of 4 weight % and 1 weight %, then
By each component solder in the solder weighed in crucible, at 1180 DEG C, and solder is smelted under vacuum condition；By 15 weights
Measure the poly- second propylene of %, the diethylene glycol monoethyl ether of 81 weight %, the nonionic surface active agent and 1 weight % of 3 weight %
The proportioning of animal oil weigh into each component in lotion, be smelted into lotion at 120 DEG C；
2) solder weighed and succinic acid are added again described into lotion, is stirred 35 minutes, stirs evenly, obtain
Fused materials mixture, obtains brazing cream, to obtain the final product.
By obtained brazing cream, it is mainly used for welding low-carbon steel part, postwelding piece surface noresidue, weld seam is fine and closely woven, and
And there is very high weld strength；In addition the corrosion-free phenomenon of part is produced.
Embodiment 3
1) each component in solder is weighed by the proportioning of the copper of the tin of 95 weight %, the silver of 4 weight % and 1 weight %, then
By each component solder in the solder weighed in crucible, at 1180 DEG C, and solder is smelted under vacuum condition；By 15 weights
Measure the poly- second propylene of %, the dipropylene glycol monomethyl ether of 81 weight %, the nonionic surface active agent and 1 weight % of 3 weight %
The proportioning of activator (containing unrighted acid and animal oil) weigh into each component in lotion, by it at 120 DEG C
It is smelted into lotion；
2) solder weighed and laurate are added again described into lotion, is stirred 45 minutes, stirs evenly, obtain
Fused materials mixture, obtains brazing cream, to obtain the final product.
By obtained brazing cream, it is mainly used for welding low-carbon steel part, postwelding piece surface noresidue, weld seam is fine and closely woven, and
And there is very high weld strength；In addition the corrosion-free phenomenon of part is produced.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously
Cannot therefore it be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of preparation method of brazing cream, comprises the following steps：
1) solder is weighed and into each component in lotion by suitable proportioning；It will weigh again into each component in lotion and solder
Lotion and solder are smelted into respectively, then weigh each component by appropriate proportioning again；Wherein, brazing cream includes following parts by weight
Several each components：70~85 parts of solder, the brazing flux into 15~22 parts of lotion, and dosage for 5~8 parts of solder quality, wherein, institute
Solder is stated to be made of the copper of the tin of 94~96 weight %, the silver of 3~4 weight % and 1~1.5 weight %；The brazing flux is selected from the last of the ten Heavenly stems
At least one of diacid, succinic acid and laurate boric acid；It is described to include following component into lotion：The poly- second of 14~16 weight %
The activation of propylene, the solvent of 65~95 weight %, the nonionic surface active agent of 2~3 weight % and 0.8~1.1 weight %
Agent；
2) solder weighed and brazing flux are added again described into lotion, is stirred 30~45 minutes, stirs evenly, obtain copper
Soldering paste, to obtain the final product.
2. the preparation method of brazing cream according to claim 1, it is characterised in that in step 1), will weigh into cream
Each component in body is smelted into lotion at 90~140 DEG C.
3. the preparation method of brazing cream according to claim 2, it is characterised in that will weigh into each component in lotion
Lotion is smelted into at 120 DEG C.
4. the preparation method of brazing cream according to any one of claim 1 to 3, it is characterised in that, will in step 1)
The solder weighed, in crucible, at 1150~1250 DEG C, and the melting under vacuum condition.
5. the preparation method of brazing cream according to claim 4, it is characterised in that the melting at 1180 DEG C.
6. the preparation method of brazing cream according to any one of claim 1 to 3, the solder by 95 weight % tin, 4
The silver of weight % and the copper of 1 weight % form.
7. the preparation method of brazing cream according to any one of claim 1 to 3, described to include following component into lotion：
The activation of the poly- second propylene of 15 weight %, the solvent of 81 weight %, the nonionic surface active agent of 3 weight % and 1 weight %
Agent.
8. brazing cream according to claim 7, it is characterised in that the solvent is diethylene glycol monoethyl ether or dipropylene glycol
Monomethyl ether.
9. brazing cream according to claim 7, it is characterised in that the nonionic surface active agent is fatty acid glycerine
Ester.
10. brazing cream according to claim 7, it is characterised in that the activator is unrighted acid and/or animal
Oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361450.3A CN107984118A (en) | 2017-12-18 | 2017-12-18 | A kind of preparation method of brazing cream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361450.3A CN107984118A (en) | 2017-12-18 | 2017-12-18 | A kind of preparation method of brazing cream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107984118A true CN107984118A (en) | 2018-05-04 |
Family
ID=62038920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711361450.3A Withdrawn CN107984118A (en) | 2017-12-18 | 2017-12-18 | A kind of preparation method of brazing cream |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5527628A (en) * | 1993-07-20 | 1996-06-18 | Iowa State University Research Foudation, Inc. | Pb-free Sn-Ag-Cu ternary eutectic solder |
| WO1997009455A1 (en) * | 1995-09-01 | 1997-03-13 | Sarnoff Corporation | Soldering composition |
| CN1586795A (en) * | 2004-08-31 | 2005-03-02 | 广州有色金属研究院 | Copper welding paste for automatic brazing and its preparing method |
| CN103659053A (en) * | 2012-09-13 | 2014-03-26 | 莫文剑 | Copper welding paste for braze welding and preparation method thereof |
| CN107052616A (en) * | 2016-11-30 | 2017-08-18 | 安徽华众焊业有限公司 | Soldering copper soldering paste |
-
2017
- 2017-12-18 CN CN201711361450.3A patent/CN107984118A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5527628A (en) * | 1993-07-20 | 1996-06-18 | Iowa State University Research Foudation, Inc. | Pb-free Sn-Ag-Cu ternary eutectic solder |
| WO1997009455A1 (en) * | 1995-09-01 | 1997-03-13 | Sarnoff Corporation | Soldering composition |
| CN1586795A (en) * | 2004-08-31 | 2005-03-02 | 广州有色金属研究院 | Copper welding paste for automatic brazing and its preparing method |
| CN103659053A (en) * | 2012-09-13 | 2014-03-26 | 莫文剑 | Copper welding paste for braze welding and preparation method thereof |
| CN107052616A (en) * | 2016-11-30 | 2017-08-18 | 安徽华众焊业有限公司 | Soldering copper soldering paste |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180504 |