CN105081599A - Flux-cored brazing rod with protective film and preparation method thereof - Google Patents
Flux-cored brazing rod with protective film and preparation method thereof Download PDFInfo
- Publication number
- CN105081599A CN105081599A CN201510565404.XA CN201510565404A CN105081599A CN 105081599 A CN105081599 A CN 105081599A CN 201510565404 A CN201510565404 A CN 201510565404A CN 105081599 A CN105081599 A CN 105081599A
- Authority
- CN
- China
- Prior art keywords
- medicine core
- brazing
- flux
- soldering bar
- diaphragm
- Prior art date
- 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.)
- Granted
Links
- 238000005219 brazing Methods 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 title abstract 6
- 239000000945 filler Substances 0.000 claims abstract description 31
- 230000004907 flux Effects 0.000 claims abstract description 31
- 229910000679 solder Inorganic materials 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 100
- 238000005476 soldering Methods 0.000 claims description 91
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims description 3
- 238000010301 surface-oxidation reaction Methods 0.000 abstract description 6
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003892 spreading Methods 0.000 abstract description 2
- 238000009736 wetting Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract 5
- 239000002184 metal Substances 0.000 abstract 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 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
- B23K35/24—Selection of soldering or welding materials proper
-
- 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)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a flux-cored brazing rod with a protective film. The flux-cored brazing rod comprises a brazing rod body composed of a flux core and a solder alloy sheath wrapping the flux core; the solder alloy sheath comprises silver-based brazing filler metal, copper-based brazing filler metal, aluminum-based brazing filler metal or zinc-based brazing filler metal; the flux core is a brazing flux matched with the solder alloy sheath; the protective film which is 0.001-0.15 mm thick adheres to the outer surface of the brazing rod body in a sealing mode. The flux-cored brazing rod has the advantages that the protective film adheres to the outer surface of the seamed flux-cored brazing rod in the sealing mode, so the flux-cored brazing rod absorbs moisture from a seam, the storage cost is reduced, and energy is saved; surface oxidation of the seamed flux-cored brazing rod can be effectively prevented, and the quality of a brazing joint is improved; meanwhile, the brazing flux contained in the protective film can restore the oxidized solder alloy sheath, and wetting and spreading of the brazing filler metal are facilitated to a certain extent. A preparation method of the flux-cored brazing rod with the protective film is simple, the investment cost is low, and production efficiency is high.
Description
Technical field
The present invention relates to the seamed soldering bar of band medicine core, especially relate to a kind of medicine core soldering bar that can prevent brazing filler metal alloy surface oxidation and the band diaphragm by the gap moisture absorption, the invention still further relates to the preparation method of this medicine core soldering bar.
Background technology
Medicine core soldering bar can be divided into seamless medicine core soldering bar and seamed soldering bar.Seamless soldering bar has good humidity resistance, but preparation method is complicated, and cost is higher; Seamed medicine core soldering bar is by brazing filler metal alloy band after multiple tracks rolling, and make through operations such as powder feeding (being sent into by medicine core), drawing, alignment, shearings, the brazing filler metal alloy crust of finished product welding rod side laminates the gap of formation between 0.01 ~ 0.1mm.Brazing flux medicine core is generally that after being dried by brazing flux, grinding, mix, be filled in brazing filler metal alloy inside through compacting, the medicine core brazing flux be filled in brazing filler metal alloy crust is very easy to by the gap moisture absorption, is also easily oxidized on the surface of brazing filler metal alloy crust simultaneously.
Easily lost efficacy after the medicine core brazing flux moisture absorption, the seamed medicine core soldering bar of the moisture absorption in use also easily makes soldered fitting produce gas hole defect, and the seamed medicine core soldering bar of surface oxidation easily makes soldered fitting produce the defects such as slag inclusion.If the seamed medicine core soldering bar after the moisture absorption is dried, not only occupied ground but also the electric energy needing consumption more; Though vacuum packaging seamed medicine core soldering bar can avoid medicine core soldering bar to deposit the moisture absorption in process and surface oxidation problem, storage cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of medicine core soldering bar that can prevent the band diaphragm of brazing filler metal alloy surface oxidation and inner medicine wicking tide, the present invention also provides the preparation method of this medicine core soldering bar.
For achieving the above object, the present invention can take following technical proposals:
The medicine core soldering bar of band diaphragm of the present invention, comprise medicine core and be coated on the soldering bar body of the brazing filler metal alloy crust formation outside described medicine core, described brazing filler metal alloy crust comprises silver-base solder, copper base solder, aluminium base solder or zinc-based solder, and described medicine core is the brazing flux matched with described brazing filler metal alloy crust; Diaphragm is had in the outer surface seal adhesion of described soldering bar body.
The thickness of described diaphragm is 0.001 ~ 0.15mm, by the brazing flux matched with described brazing filler metal alloy crust and gluing curing agent formulated by the weight of 1:3 ~ 3:1.
The preparation method of a kind of medicine core soldering bar with diaphragm of the present invention is: medicine core soldering bar is made according to a conventional method the seamed medicine core soldering bar be made up of brazing filler metal alloy crust and medicine core for subsequent use; The brazing flux matched with brazing filler metal alloy crust composition is ground to form granularity and is less than 120 object fine powders, and by brazing flux: brazing flux fine powder joins in the gluing curing agent of molten state and mixes by the weight of gluing curing agent=1:3 ~ 3:1; The seamed medicine core soldering bar prepared is immersed in the molten state mixture of above-mentioned preparation, at the uniform velocity takes out, cool after namely solidify the diaphragm of a layer thickness 0.001 ~ 0.15mm in the outside seal of medicine core soldering bar, obtain the medicine core soldering bar finished product being with diaphragm.
The invention has the advantages that at the outer surface seal adhesion layer protecting film of seamed medicine core soldering bar, both can avoid medicine core soldering bar moisture absorption from gap, and save storage cost, saved the energy; Also effectively can prevent the surface oxidation of seamed medicine core soldering bar, improve the quality of soldered fitting; Simultaneously contained in diaphragm brazing flux reducible oxidized brazing filler metal alloy crust again, also helps the wetting and spreading of solder to a certain extent.The preparation method of the medicine core soldering bar of band diaphragm of the present invention is simple, and input cost is lower, and production efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Detailed description of the invention
As shown in Figure 1-2, the medicine core soldering bar of band diaphragm of the present invention, comprise medicine core 1 and be coated on the soldering bar body of brazing filler metal alloy crust 2 formation outside medicine core 1, brazing filler metal alloy crust 2 comprises silver-base solder, copper base solder, aluminium base solder or zinc-based solder, and medicine core 1 is the brazing flux matched with brazing filler metal alloy crust; Have a layer thickness to be the diaphragm 3 of 0.001 ~ 0.15mm in the outer surface seal adhesion of soldering bar body, diaphragm 3 by the brazing flux matched with brazing filler metal alloy crust and gluing curing agent formulated by the weight of 1:3 ~ 3:1.
The preparation method of the medicine core soldering bar of band diaphragm of the present invention is: by medicine core soldering bar according to a conventional method (strip brazing material alloy is through operations such as multiple tracks rolling, powder feeding, drawing, alignments) to make the seamed medicine core soldering bar be made up of brazing filler metal alloy crust and medicine core for subsequent use; The brazing flux matched with brazing filler metal alloy crust composition is ground to form granularity and is less than 120 object fine powders, and by brazing flux: brazing flux fine powder joins in the gluing curing agent of molten state and mixes by the weight of gluing curing agent=1:3 ~ 3:1; The seamed medicine core soldering bar prepared is immersed in the molten state mixture of above-mentioned preparation, at the uniform velocity takes out, cool after namely at the diaphragm of outer surface sealing and curing a layer thickness 0.001 ~ 0.15mm of medicine core soldering bar, obtain being with the medicine core soldering bar finished product of diaphragm.
Below by specific embodiment, more detailed explanation is done to the present invention.
embodiment 1
Preparation BAg45CuZn is with the medicine core soldering bar of diaphragm:
1) Na of 20% selected by brazing flux
2b
4o
7the B of+30%
2o
3the KBF of+50%
4formulated;
2) BAg45CuZn of thickness 0.25mm is with the seamed medicine core soldering bar making diameter 2.0mm, length 450mm through operations such as multiple tracks rolling, powder feeding, drawing, alignments;
3) be less than 120 object brazing flux powder and the EVA of the melting agent that is adhesively fixed mix being ground to granularity with the ratio of 1:3; by step 2) the medicine core soldering bar prepared is immersed in this mixture; at the uniform velocity take out; namely obtain the BAg45CuZn medicine core soldering bar finished product of band diaphragm after cooling curing, the thickness of diaphragm is about 0.10mm.
The medicine core soldering bar of obtained band diaphragm and the common medicine core soldering bar not with diaphragm are placed in atmospheric environment simultaneously and place one week, the medicine core soldering bar of band diaphragm does not almost increase weight, and common drug core soldering bar weightening finish about 0.26%; Medicine core soldering bar surface with diaphragm does not almost have variable color, and common drug core soldering bar surface because of oxidation color dimmed.After two months, the medicine core soldering bar weightening finish about 0.1% of band diaphragm, and common drug core soldering bar weightening finish about 1.26%; Medicine core soldering bar surface with diaphragm does not almost have variable color, and common drug core soldering bar surface becomes dark dark because of oxidation color.
embodiment 2
Preparation BAg30CuZn is with the medicine core soldering bar of diaphragm:
1) Na of 20% selected by brazing flux
2b
4o
7the B of+35%
2o
3the KBF of+45%
4formulated;
2) BAg30CuZn of thickness 0.25mm is with the seamed medicine core soldering bar making diameter 2.0mm, length 450mm through operations such as multiple tracks rolling, powder feeding, drawing, alignments;
3) be less than 120 object brazing flux powder and the EVA of the melting agent that is adhesively fixed mix being ground to granularity with the ratio of 1:2; by step 2) the medicine core soldering bar prepared is immersed in this mixture; at the uniform velocity take out; namely obtain the BAg30CuZn medicine core soldering bar finished product of band diaphragm after cooling curing, the thickness of diaphragm is about 0.12mm.
The medicine core soldering bar of obtained band diaphragm and the common medicine core soldering bar not with diaphragm are placed in atmospheric environment simultaneously and place one week, the medicine core soldering bar of band diaphragm does not almost increase weight, and common drug core soldering bar weightening finish about 0.32%; Medicine core soldering bar surface with diaphragm does not almost have variable color, and common drug core soldering bar surface because of oxidation color dimmed.After two months, the medicine core soldering bar weightening finish about 0.05% of band diaphragm, and common drug core soldering bar weightening finish about 1.45%; Medicine core soldering bar surface with diaphragm does not almost have variable color, and common drug core soldering bar surface becomes dark dark because of oxidation color.
embodiment 3
Preparation BCu62Zn is with the medicine core soldering bar of diaphragm:
1) Na of 50% selected by brazing flux
2b
4o
7the B of+40%
2o
3the KBF of+10%
4formulated;
2) BCu62Zn of thickness 0.25mm is with the seamed medicine core soldering bar making diameter 2.0mm, length 450mm through operations such as multiple tracks rolling, powder feeding, drawing, alignments;
3) be less than 120 object brazing flux powder and the EVA of the melting agent that is adhesively fixed mix being ground to granularity with the ratio of 1:1; by step 2) the medicine core soldering bar prepared is immersed in this mixture; at the uniform velocity take out; namely obtain the BCu62Zn medicine core soldering bar finished product of band diaphragm after cooling curing, the thickness of diaphragm is about 0.13mm.
The medicine core soldering bar of obtained band diaphragm and the common medicine core soldering bar not with diaphragm are placed in atmospheric environment simultaneously and place one week, the medicine core soldering bar of band diaphragm does not almost increase weight, and common drug core soldering bar weightening finish about 0.28%; Medicine core soldering bar surface with diaphragm does not almost have variable color, and common drug core soldering bar surface because of oxidation color dimmed.After two months, the medicine core soldering bar weightening finish about 0.08% of band diaphragm, and common drug core soldering bar weightening finish about 1.56%; Medicine core soldering bar surface with diaphragm does not almost have variable color, and common drug core soldering bar surface becomes dark dark because of oxidation color.
Claims (4)
1. the medicine core soldering bar with diaphragm, comprise medicine core (1) and be coated on the soldering bar body that described medicine core (1) brazing filler metal alloy crust (2) outward forms, it is characterized in that: described brazing filler metal alloy crust (2) comprises silver-base solder, copper base solder, aluminium base solder or zinc-based solder, described medicine core (1) is the brazing flux matched with described brazing filler metal alloy crust; Diaphragm (3) is had in the outer surface seal adhesion of described soldering bar body.
2. the medicine core soldering bar of band diaphragm according to claim 1, is characterized in that: the thickness of described diaphragm (3) is 0.001 ~ 0.15mm.
3. the medicine core soldering bar of band diaphragm according to claim 1, is characterized in that: described diaphragm (3) by the brazing flux matched with described brazing filler metal alloy crust and gluing curing agent formulated by the weight of 1:3 ~ 3:1.
4. the preparation method of the medicine core soldering bar of the band diaphragm of claim 1 is: medicine core soldering bar is made according to a conventional method the seamed medicine core soldering bar be made up of brazing filler metal alloy crust and medicine core for subsequent use; The brazing flux matched with brazing filler metal alloy crust composition is ground to form granularity and is less than 120 object fine powders, and by brazing flux: brazing flux fine powder joins in the gluing curing agent of molten state and mixes by the weight of gluing curing agent=1:3 ~ 3:1; The seamed medicine core soldering bar prepared is immersed in the molten state mixture of above-mentioned preparation, at the uniform velocity takes out, cool after namely solidify the diaphragm of a layer thickness 0.001 ~ 0.15mm in the outside seal of medicine core soldering bar, obtain the medicine core soldering bar finished product being with diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565404.XA CN105081599B (en) | 2015-09-25 | 2015-09-25 | Medicine core soldering bar with diaphragm and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565404.XA CN105081599B (en) | 2015-09-25 | 2015-09-25 | Medicine core soldering bar with diaphragm and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105081599A true CN105081599A (en) | 2015-11-25 |
| CN105081599B CN105081599B (en) | 2017-06-20 |
Family
ID=54563407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565404.XA Active CN105081599B (en) | 2015-09-25 | 2015-09-25 | Medicine core soldering bar with diaphragm and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105081599B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271226A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of brazing flux bonding system, solder coating composition and flux coated brazingrod |
| CN106271203A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of flux coated brazingrod and preparation method thereof |
| WO2019119281A1 (en) * | 2017-12-19 | 2019-06-27 | 郑州机械研究所有限公司 | Solder outer skin and preparation method thereof, in-situ synthesized metallic coated flux-cored silver solder and preparation method thereof, soldering method and connector |
| CN112621010A (en) * | 2020-12-25 | 2021-04-09 | 中机智能装备创新研究院(宁波)有限公司 | Flux-cored zinc-aluminum brazing filler metal and preparation method thereof |
| CN113579559A (en) * | 2021-09-14 | 2021-11-02 | 中机智能装备创新研究院(宁波)有限公司 | Flux-cored silver solder with indium protective layer and preparation method |
| WO2022067893A1 (en) * | 2020-09-29 | 2022-04-07 | 河南龙辉铜业有限公司 | Copper water pipe elbow having solder, and manufacturing method and soldering method therefor |
| CN115488543A (en) * | 2022-09-06 | 2022-12-20 | 郑州机械研究所有限公司 | Flux-cored welding ring and preparation method thereof |
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| CN106271226A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of brazing flux bonding system, solder coating composition and flux coated brazingrod |
| CN106271203A (en) * | 2016-08-31 | 2017-01-04 | 郑州机械研究所 | A kind of flux coated brazingrod and preparation method thereof |
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| WO2019119281A1 (en) * | 2017-12-19 | 2019-06-27 | 郑州机械研究所有限公司 | Solder outer skin and preparation method thereof, in-situ synthesized metallic coated flux-cored silver solder and preparation method thereof, soldering method and connector |
| WO2022067893A1 (en) * | 2020-09-29 | 2022-04-07 | 河南龙辉铜业有限公司 | Copper water pipe elbow having solder, and manufacturing method and soldering method therefor |
| CN112621010A (en) * | 2020-12-25 | 2021-04-09 | 中机智能装备创新研究院(宁波)有限公司 | Flux-cored zinc-aluminum brazing filler metal and preparation method thereof |
| CN113579559A (en) * | 2021-09-14 | 2021-11-02 | 中机智能装备创新研究院(宁波)有限公司 | Flux-cored silver solder with indium protective layer and preparation method |
| CN115488543A (en) * | 2022-09-06 | 2022-12-20 | 郑州机械研究所有限公司 | Flux-cored welding ring and preparation method thereof |
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| CN105081599B (en) | 2017-06-20 |
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Inventor after: Long Weimin Inventor after: Zhao Chenfeng Inventor after: Li Xiupeng Inventor after: Zhang Hongchao Inventor after: Xue Hongyu Inventor after: Xuan Qingqing Inventor after: Zhong Sujuan Inventor after: Dong Bowen Inventor after: Ma Jia Inventor after: Zhang Lei Inventor after: Zhu Kun Inventor after: Zhang Guanxing Inventor after: Pei Yinyin Inventor after: Shen Yuanxun Inventor before: Long Fei Inventor before: Zhang Hongchao Inventor before: Xue Hongyu Inventor before: Xuan Qingqing |
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Effective date of registration: 20170505 Address after: 450000 intersection of science Avenue and Korean Pine Road, hi tech Industrial Development Zone, Henan, Zhengzhou Applicant after: Zhengzhou Research Institute of Mechanical Engineering Address before: 450000 Henan City, Zhengzhou province No. 27 East Central Road, No. 101, building 4, unit 9, No. 5 Applicant before: Long Fei |
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Address after: 450001 science avenue of Zhengzhou high tech Industrial Development Zone, Zhengzhou, Henan Province, No. Patentee after: Zhengzhou Machinery Research Institute Co., Ltd. Address before: 450000 intersection of science Avenue and Korean Pine Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou Research Institute of Mechanical Engineering |
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