CN100577345C - A kind of brazing flux for welding aluminum and aluminum alloy - Google Patents
A kind of brazing flux for welding aluminum and aluminum alloy Download PDFInfo
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- CN100577345C CN100577345C CN200710029683A CN200710029683A CN100577345C CN 100577345 C CN100577345 C CN 100577345C CN 200710029683 A CN200710029683 A CN 200710029683A CN 200710029683 A CN200710029683 A CN 200710029683A CN 100577345 C CN100577345 C CN 100577345C
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- aluminum
- aluminum alloy
- flux
- brazing
- alf
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 24
- 230000004907 flux Effects 0.000 title claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 title claims abstract description 4
- 238000005219 brazing Methods 0.000 title abstract description 17
- BHHYHSUAOQUXJK-UHFFFAOYSA-L zinc fluoride Chemical compound F[Zn]F BHHYHSUAOQUXJK-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229910016569 AlF 3 Inorganic materials 0.000 claims abstract description 11
- 230000005496 eutectics Effects 0.000 claims abstract description 9
- YUOWTJMRMWQJDA-UHFFFAOYSA-J tin(iv) fluoride Chemical compound [F-].[F-].[F-].[F-].[Sn+4] YUOWTJMRMWQJDA-UHFFFAOYSA-J 0.000 claims abstract description 8
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 229910000679 solder Inorganic materials 0.000 description 5
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 3
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
一种焊接铝及铝合金的钎剂，涉及一种钎焊材料。本发明所述的铝合金-铝合金、铝-铝合金钎焊用钎剂，以质量百分比计，含有共晶AlF3-CsF系钎剂97.0～99.9、氟化锌0.1～3.0、氟化锡0～0.5。是一种抗拉强度高的铝合金-铝合金、铝-铝合金钎焊用钎剂。A flux for welding aluminum and aluminum alloys relates to a brazing material. The brazing flux for aluminum alloy-aluminum alloy and aluminum-aluminum alloy according to the present invention contains eutectic AlF 3 -CsF series flux 97.0-99.9, zinc fluoride 0.1-3.0, tin fluoride 0~0.5. It is an aluminum alloy-aluminum alloy and aluminum-aluminum alloy brazing flux with high tensile strength.
Description
技术领域 technical field
本发明涉及一种钎焊材料，特别涉及一种铝合金-铝合金、铝-铝合金钎焊用的钎焊材料。The invention relates to a brazing material, in particular to a brazing material for aluminum alloy-aluminum alloy and aluminum-aluminum alloy brazing.
背景技术 Background technique
铝及铝合金与其它金属相比钎焊比较困难，主要是铝表面容易生成一层致密且化学稳定的Al2O3膜，难以去除。国内外对铝合金钎焊的钎剂有很多研究成果。北京大学张启运教授在[《Thermochimica Acta》，303(1997)]发表论文：“A study on the phase diagram of AlF3-CsF system”，公开了AlF3-CsF系相图，指出共晶组成为AlF3∶CsF＝42.0∶58.0(摩尔比)，熔化温度是471℃。该类钎剂具有较高的钎焊性能，对含镁量高的铝合金具有特殊的活性，对火焰的稳定性高。可用于火焰钎焊、保护气氛炉中钎焊、高频感应压力钎焊铝合金-铝合金、铝-铝合金等。共晶AlF3-CsF系钎剂配合80∶20锌铝钎料，在高频感应压力下，钎焊铝合金4047-铝合金6063，测得抗拉强度108～126MPa，钎焊铝(Al 99.70)-铝合金4047，测得抗拉强度115～130MPa，抗拉强度较低，应用范围受到限制。Compared with other metals, aluminum and aluminum alloys are more difficult to braze, mainly because a dense and chemically stable Al 2 O 3 film is easy to form on the surface of aluminum, which is difficult to remove. There are many research results on fluxes for aluminum alloy brazing at home and abroad. Professor Zhang Qiyun of Peking University published a paper in ["Thermochimica Acta", 303 (1997)]: "A study on the phase diagram of AlF 3 -CsF system", disclosed the phase diagram of AlF 3 -CsF system, and pointed out that the eutectic composition is AlF 3 :CsF=42.0:58.0 (molar ratio), melting temperature is 471°C. This type of flux has high brazing performance, special activity to aluminum alloys with high magnesium content, and high stability to flames. It can be used for flame brazing, brazing in protective atmosphere furnace, high-frequency induction pressure brazing aluminum alloy-aluminum alloy, aluminum-aluminum alloy, etc. The eutectic AlF 3 -CsF series flux is combined with 80:20 zinc-aluminum solder, under high-frequency induction pressure, brazing aluminum alloy 4047-aluminum alloy 6063, the measured tensile strength is 108-126MPa, brazing aluminum (Al 99.70 )- aluminum alloy 4047, the measured tensile strength is 115-130MPa, the tensile strength is low, and the application range is limited.
发明内容 Contents of the invention
本发明的目的是提供一种抗拉强度高的铝合金-铝合金、铝-铝合金钎焊用钎剂。The object of the present invention is to provide a flux for aluminum alloy-aluminum alloy and aluminum-aluminum alloy brazing with high tensile strength.
本发明所述的铝合金-铝合金、铝-铝合金钎焊用钎剂，以质量百分比计，含有共晶AlF3-CsF系钎剂97.0～99.9、氟化锌0.1～3.0、氟化锡0～0.5。优选组分为共晶AlF3-CsF系钎剂97.8～99.7、氟化锌0.2～1.8、氟化锡0.1～0.4。The brazing flux for aluminum alloy-aluminum alloy and aluminum-aluminum alloy according to the present invention contains eutectic AlF 3 -CsF series flux 97.0-99.9, zinc fluoride 0.1-3.0, tin fluoride 0～0.5. The preferred components are eutectic AlF 3 -CsF flux 97.8-99.7, zinc fluoride 0.2-1.8, tin fluoride 0.1-0.4.
试验表明，在共晶AlF3-CsF系钎剂中加入氟化锌、氟化锡，焊接过程中，锌、锡元素可以被铝置换出来并形成合金。这一置换、合金化的过程，增强了钎剂的去膜能力，“液化”了焊接工件的表面，提高了钎料的润湿性能，从而增加了钎料与工件的结合强度。Tests have shown that adding zinc fluoride and tin fluoride to the eutectic AlF 3 -CsF flux, during the welding process, zinc and tin elements can be replaced by aluminum and form an alloy. This replacement and alloying process enhances the film-removing ability of the flux, "liquefies" the surface of the welded workpiece, improves the wettability of the solder, and thus increases the bonding strength between the solder and the workpiece.
试验结果表明，加入氟化锌、氟化锡的总量不宜超过3％，否则钎剂的熔化温度会提高，难与锌铝钎料相配合。The test results show that the total amount of zinc fluoride and tin fluoride added should not exceed 3%, otherwise the melting temperature of the flux will increase and it will be difficult to match with the zinc-aluminum solder.
具体实施方式 Detailed ways
将共晶(摩尔比为42.0∶58.0)AlF3-CsF系钎剂和氟化锌、氟化锡按配比混合，球磨至200目，即可制成本发明所述的钎剂。配合80∶20锌铝钎料，高频感应压力钎焊铝合金4047-铝合金6063、铝(Al 99.70)-铝合金4047，按GB/T228-2002测试方法，测试抗拉强度，结果见下表：The flux described in the present invention can be prepared by mixing eutectic (molar ratio 42.0:58.0) AlF 3 -CsF flux, zinc fluoride, and tin fluoride according to the ratio, and ball milling to 200 mesh. With 80:20 zinc-aluminum solder, high-frequency induction pressure brazing aluminum alloy 4047-aluminum alloy 6063, aluminum (Al 99.70)-aluminum alloy 4047, according to GB/T228-2002 test method, test the tensile strength, the results are shown below surface:
从上表可以看出，抗拉强度比未加入氟化锌、氟化锡的共晶AlF3-CsF系钎剂提高10％左右。It can be seen from the above table that the tensile strength is about 10% higher than that of the eutectic AlF 3 -CsF flux without adding zinc fluoride and tin fluoride.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710029683A CN100577345C (en) | 2007-08-10 | 2007-08-10 | A kind of brazing flux for welding aluminum and aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710029683A CN100577345C (en) | 2007-08-10 | 2007-08-10 | A kind of brazing flux for welding aluminum and aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101112738A CN101112738A (en) | 2008-01-30 |
| CN100577345C true CN100577345C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710029683A Expired - Fee Related CN100577345C (en) | 2007-08-10 | 2007-08-10 | A kind of brazing flux for welding aluminum and aluminum alloy |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954552B (en) * | 2010-01-08 | 2012-05-23 | 佛山市顺德区三胜家电制造有限公司 | Novel non-corrosive brazing flux for silver brazing filler metal or copper-phosphorus-silver brazing filler metal |
| JP5713829B2 (en) * | 2011-07-11 | 2015-05-07 | 第一稀元素化学工業株式会社 | Brazing flux for aluminum materials |
| CN102303201B (en) * | 2011-08-19 | 2013-08-21 | 北京工业大学 | Preparation method of intermediate-temperature aluminum-based aluminum alloy solder paste |
| CN102922174A (en) * | 2012-11-05 | 2013-02-13 | 虞海香 | Soldering flux for welding magnalium alloy |
| CN103659054B (en) * | 2013-10-25 | 2015-11-18 | 天津大学 | Be applicable to self-fluxing agent material and the preparation method of the soldering of thin plate Al and Alalloy |
| CN103659055A (en) * | 2013-11-28 | 2014-03-26 | 浙江鸿峰铝业有限公司 | Soldering flux for soldering of aluminum alloy materials |
| CN103831545B (en) * | 2014-03-14 | 2016-01-13 | 镇江市锶达合金材料有限公司 | Fluted body arc-welding and soldering aluminium alloy compound welding wire and manufacture method thereof |
| CN104148827B (en) * | 2014-06-17 | 2016-03-02 | 天津大学 | The middle temperature brazing flux without corrosion of soldering aluminium alloy containing magnesium and preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390673A (en) * | 2002-07-05 | 2003-01-15 | 清华大学 | MgAl alloy solder without corrosive fluoride and its preparing process |
| US20030102359A1 (en) * | 2000-03-30 | 2003-06-05 | Solvay Fluor Und Derivate Gmbh | Fluorostannate-containing brazing or soldering fluxes and use thereof in brazing or soldering aluminum or aluminum alloys |
| EP1069968B1 (en) * | 1998-03-25 | 2003-11-12 | Solvay Fluor und Derivate GmbH | New fluxing agents |
| CN1555962A (en) * | 2004-01-08 | 2004-12-22 | 张攸彭 | New type soldering flux for stainless iron aluminium brazing |
| CN1631604A (en) * | 2004-12-29 | 2005-06-29 | 广州有色金属研究院 | A non-corrosion flux for stainless iron-aluminum high-frequency induction pressure brazing |
-
2007
- 2007-08-10 CN CN200710029683A patent/CN100577345C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1069968B1 (en) * | 1998-03-25 | 2003-11-12 | Solvay Fluor und Derivate GmbH | New fluxing agents |
| US20030102359A1 (en) * | 2000-03-30 | 2003-06-05 | Solvay Fluor Und Derivate Gmbh | Fluorostannate-containing brazing or soldering fluxes and use thereof in brazing or soldering aluminum or aluminum alloys |
| CN1390673A (en) * | 2002-07-05 | 2003-01-15 | 清华大学 | MgAl alloy solder without corrosive fluoride and its preparing process |
| CN1555962A (en) * | 2004-01-08 | 2004-12-22 | 张攸彭 | New type soldering flux for stainless iron aluminium brazing |
| CN1631604A (en) * | 2004-12-29 | 2005-06-29 | 广州有色金属研究院 | A non-corrosion flux for stainless iron-aluminum high-frequency induction pressure brazing |
Non-Patent Citations (6)
| Title |
|---|
| A study on the phase diagram of AlF3-CsF system. Rong Chen, Jie Cao, Qiyun Zhang.Thermochimica Acta,Vol.第303卷 . 1997 |
| A study on the phase diagram of AlF3-CsF system. Rong Chen,Jie Cao,Qiyun Zhang.Thermochimica Acta,Vol.303. 1997 * |
| 铝及其合金的无腐蚀、不溶性钎剂钎焊. 吴根华，陈荣，张启运.安庆师范学院学报(自然科学版)，第4卷第3期卷. 1998 |
| 铝及其合金的无腐蚀、不溶性钎剂钎焊. 吴根华，陈荣，张启运.安庆师范学院学报(自然科学版)，第4卷第3期. 1998 * |
| 铝用氟化物钎剂的研究. 张露箐.焊接，第6期. 1996 |
| 铝用氟化物钎剂的研究. 张露箐.焊接，第6期. 1996 * |
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| Publication number | Publication date |
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| CN101112738A (en) | 2008-01-30 |
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