JPS6366638B2 - - Google Patents
Info
- Publication number
- JPS6366638B2 JPS6366638B2 JP57042620A JP4262082A JPS6366638B2 JP S6366638 B2 JPS6366638 B2 JP S6366638B2 JP 57042620 A JP57042620 A JP 57042620A JP 4262082 A JP4262082 A JP 4262082A JP S6366638 B2 JPS6366638 B2 JP S6366638B2
- Authority
- JP
- Japan
- Prior art keywords
- flux
- brazing
- alf
- mol
- znf
- 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.)
- Expired
Links
- 230000004907 flux Effects 0.000 claims description 43
- 238000005219 brazing Methods 0.000 claims description 22
- 229910016569 AlF 3 Inorganic materials 0.000 claims description 14
- BHHYHSUAOQUXJK-UHFFFAOYSA-L zinc fluoride Chemical compound F[Zn]F BHHYHSUAOQUXJK-UHFFFAOYSA-L 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 description 20
- 230000007797 corrosion Effects 0.000 description 20
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009736 wetting Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- -1 K 2 LiAlF 6 Chemical class 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- B23K35/3601—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 inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は新規なろう付用フラツクスに係り、特
にAlまたはAl合金の板，管，その他の構造物の
接合に好適なろう付用フラツクスに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel brazing flux, and particularly to a brazing flux suitable for joining Al or Al alloy plates, pipes, and other structures.
従来AlまたはAl合金のろう付には塩化物系の
フラツクスが一般的に用いられているが、吸湿性
が大きく、ろう付後の残渣フラツクスを完全に除
去しないと耐食性が著しく低下する。残渣フラツ
クスを除去するには洗浄工程を必要とし、設備的
にも高価になる。複雑な形状の構造物になるとフ
ラツクスの完全な除去は困難である。米国特許第
3951328号には、フラツクスとしてKFとAlF3の
弗化物を用いてろう付する方法が提案されてい
る。この発明は吸湿性が大きいKFをAlF3と混合
して溶融させることによりK3AlF6とKAlF4の化
合物を生成させる。この化合物は吸湿性が非常に
小さいので、ろう付後に被接合面に残る残渣フラ
ツクスの除去は不要と言われている。しかし、た
とえ残渣フラツクスに腐食性の成分がないにして
も耐食性を向上させるものはなく、被接合部材の
耐食性を向上させるという点ではまだ欠点があつ
た。 Conventionally, chloride-based fluxes have been commonly used for brazing Al or Al alloys, but they are highly hygroscopic and unless the residual flux after brazing is completely removed, corrosion resistance will be significantly reduced. Removal of residual flux requires a cleaning process, which is expensive in terms of equipment. When structures have complex shapes, it is difficult to completely remove flux. US Patent No.
No. 3951328 proposes a method of brazing using KF and AlF 3 fluorides as fluxes. In this invention, a compound of K 3 AlF 6 and KAlF 4 is produced by mixing KF, which has a high hygroscopicity, with AlF 3 and melting the mixture. Since this compound has very low hygroscopicity, it is said that it is not necessary to remove the residual flux remaining on the surfaces to be joined after brazing. However, even if the residual flux is free of corrosive components, there is nothing to improve the corrosion resistance, and there are still drawbacks in terms of improving the corrosion resistance of the members to be joined.
本発明の目的は、Al―Si系等のろう付を用い
て接合する際に、ろう付後のフラツクスの除去を
必要とせず、且つ被接合材表面に耐食性に富む金
属の被膜を残留させることができるアルミニウム
ろう付用フラツクスを提供することにある。 The purpose of the present invention is to eliminate the need to remove flux after brazing when joining using Al-Si brazing, etc., and to leave a highly corrosion-resistant metal coating on the surface of the materials to be joined. Our objective is to provide a flux for aluminum brazing that can be used for aluminum brazing.
ろう付後のフラツクスの除去が不要なフラツク
スの必須条件は、残渣フラツクスに吸湿性の成分
が存在しないことである。非吸湿性のフラツクス
としては弗化物系のものがよい。塩化物系のほと
んどは吸湿性を有し、ろう付後の残渣フラツクス
を完全に除去しないと耐食性を著しく低下させる
ことになり目的に合致しない。 An essential condition for a flux that does not require removal after brazing is the absence of hygroscopic components in the residual flux. Fluoride-based fluxes are preferred as non-hygroscopic fluxes. Most of the chloride-based materials have hygroscopic properties, and if the residual flux after brazing is not completely removed, the corrosion resistance will be significantly reduced, which is not suitable for the purpose.
目的を達成するために、弗化物系、特にAlF3
とKFよりなるフラツクスに耐食性を向上させる
効果があると思われた弗化物を種々添加して検討
した結果、ZnF2が最も良いことを見い出した。 To achieve this purpose, fluoride systems, especially AlF3
After investigating the addition of various fluorides that were thought to have the effect of improving corrosion resistance to the flux consisting of and KF, it was found that ZnF 2 was the best.
ZnF2は被接合材としてAlを用いた場合、ろう
付温度で分解し、金属Znがろう付部に被覆され
ることによつてAlの耐食性を向上させるもので
ある。ZnはAlに対して卑であり、フラツクスに
よる腐食からAlを保護することができる。 When Al is used as the material to be joined, ZnF 2 decomposes at the brazing temperature and coats the brazed portion with metal Zn, thereby improving the corrosion resistance of Al. Zn is base against Al and can protect Al from corrosion by flux.
本発明のフラツクスは、モル比で、AlF330〜
55％，KF35〜60％，ZnF26〜15％およびLiF3〜
25％よりなる。 The flux of the present invention has a molar ratio of AlF 3 30 to
55%, KF35~60%, ZnF2 6~15% and LiF3~
Consists of 25%.
本発明のフラツクスはたとえば、所定組成とな
るように配合されたAlF3，KF，ZnF2およびLiF
の混合物を溶融後、冷却，固化させ、粉砕する方
法によつて製造することができる。またALF3と
KFをあらかじめ溶融した後、冷却，固化させ粉
砕したものと、ZnF2とLiFを同様に溶融した後、
冷却，固化させ粉砕したものとを混合する方法、
更には全部の成分を水に溶かしてクリーム状と
し、乾燥して粉末とする方法によつて製造するこ
とができる。 The flux of the present invention includes, for example, AlF 3 , KF, ZnF 2 and LiF mixed to have a predetermined composition.
It can be produced by melting a mixture, cooling it, solidifying it, and pulverizing it. Also with ALF 3
After melting KF in advance, cooling, solidifying and pulverizing it, and melting ZnF 2 and LiF in the same way,
A method of mixing with the cooled, solidified and pulverized material,
Furthermore, it can be manufactured by dissolving all the ingredients in water to form a cream, and then drying it to form a powder.
このようにして製造されたフラツクスには、通
常、K2LiAlF6，KAlF4およびK3Zn2F7などの化
合物が含まれる。AlF3とKFを溶融したものと、
ZnF2とLiFとをあらかじめ溶融したものとを混合
したフラツクス粉末にはK2LiAlF6，KAlF4およ
びZnF2などの化合物が含まれる。更に水でクリ
ーム状とし、乾燥した粉末にはK2LiAlF6，
K3AlF6，AlF3およびKFなどの化合物が含まれ
る。これらの化合物は吸湿性が著しく低く、水分
に対する耐食性を向上させる効果がある。 Fluxes produced in this manner typically contain compounds such as K 2 LiAlF 6 , KAlF 4 and K 3 Zn 2 F 7 . A mixture of AlF 3 and KF,
The flux powder, which is a mixture of ZnF 2 and pre-molten LiF, contains compounds such as K 2 LiAlF 6 , KAlF 4 and ZnF 2 . Further, it is creamed with water, and the dried powder contains K 2 LiAlF 6 ,
Includes compounds such as K 3 AlF 6 , AlF 3 and KF. These compounds have extremely low hygroscopicity and are effective in improving corrosion resistance against moisture.
本発明のフラツクスの好適な製法は、モル比
で、AlF330〜55％およびKF35〜60％の成分にし
て溶融し、これに予めモル比でLiFを60〜64％お
よびZnF2を40〜36含有させて作製した混合物を
添加したものである。 A preferred method for producing the flux of the present invention is to melt the components of 30-55% AlF 3 and 35-60% KF in molar ratio, and add 60-64% LiF and 40-40% ZnF 2 in molar ratio to this in advance. 36 was added to the mixture prepared.
AlF3およびKFの成分範囲は、被接合材の融点
以下で溶融する成分範囲とした。中でもモル％で
AlF3を40〜50、KFを50〜45成分とした場合には
600℃以下で溶融し、ろう付温度で著しく活性化
する。 The component ranges of AlF 3 and KF were determined to be a component range that melts below the melting point of the materials to be joined. Especially in mole%
When AlF 3 is 40-50 and KF is 50-45,
It melts below 600℃ and is significantly activated at brazing temperatures.
ZnF2の量は、ろう付後の接合面の近傍および
全面にZn被膜を形成させることができるように
６〜15モル％とした。この成分範囲であればフラ
ツクスの融点の変動も少ない。 The amount of ZnF 2 was set to 6 to 15 mol % so that a Zn film could be formed in the vicinity of the joint surface and on the entire surface after brazing. Within this range of components, there is little variation in the melting point of the flux.
LiFを３〜25モル％の範囲としたのはフラツク
スの溶融温度を上昇させないことと、これ以上添
加してもその効果はほとんど変わらないことを確
認したからである。LiFを３モル％以上含有させ
るとぬれ広がりに効果を現わすことが実験の結
果、明らかとなつた。 The reason why LiF was set in the range of 3 to 25 mol % was because it was confirmed that the melting temperature of the flux would not be increased and that the effect would hardly change even if more than this was added. Experiments have revealed that containing 3 mol% or more of LiF has an effect on wetting and spreading.
モル％でAlF3を45〜52％およびKFを55〜48％
の成分にして加熱すると600℃以下で溶融し、こ
れにモル％でLiFを60〜64％およびZnF2を40〜36
％としたものを25モル％含有させると620℃以下
の融点になる。このようにZnF2およびLiFを添加
しても融点の上昇は殆んどなく、ろう付温度はぬ
れ広がり性が良好でしかも耐食性に優れたろう付
継手が得られることが分つた。 AlF3 45-52% and KF 55-48% in mol%
When heated as a component, it melts below 600℃, and this contains 60-64% LiF and 40-36 % ZnF2 in mole%.
If the content is 25 mol%, the melting point will be 620°C or less. It was thus found that even when ZnF 2 and LiF were added, there was almost no increase in the melting point, and a brazed joint with good wetting and spreading properties and excellent corrosion resistance could be obtained at the brazing temperature.
以下、本発明のフラツクスについてぬれ広がり
および腐食試験した結果を具体的な実施例によつ
て説明した。 Hereinafter, the results of wetting and spreading and corrosion tests on the flux of the present invention will be explained using specific examples.
乾燥したKFとAlF3を夫々50モル％に配置した
粉末を黒鉛るつぼに充填し、電気炉中で約680℃
に加熱して溶融した。溶融したことを黒鉛棒で攪
拌し確認した後、黒鉛鋳型に鋳込み固化させた。
溶融して作つたフラツクスは150メツシユの篩を
通過するように粉砕した。次に150メツシユ以下
のLiF62モル％およびZnF238モル％の配合とした
粉末を前述のKFとAlF3からなる粉末に20モル％
（No.１）および35モル％（No.２）添加した。 Powders containing 50 mol% of each of dried KF and AlF 3 were filled into a graphite crucible and heated at approximately 680°C in an electric furnace.
It was heated to melt. After confirming that it was molten by stirring with a graphite rod, it was poured into a graphite mold and solidified.
The flux produced by melting was pulverized to pass through a 150-mesh sieve. Next, a powder containing 2 mol % of LiF 62 mol % and 38 mol % ZnF 2 of 150 mesh or less was added to the powder consisting of KF and AlF 3 described above at 20 mol %.
(No. 1) and 35 mol% (No. 2) were added.
このようにして作つたフラツクスを約10％のフ
ラツクス濃度（残りは水分）にし、Al板
（A1050：50mm角×１mm厚さ）と直径2.4mmφの線
材をリング状に加工しリングの外径を13mmφとし
た4343ろう材の近傍に付着させぬれ広がり性を試
験した。また腐食試験はA1050板上にブレージン
グシート（心材：3003，皮材：4343）を直角に配
置してろう付箇所の近傍にフラツクスを付着させ
た。 The flux thus produced was made to have a flux concentration of approximately 10% (the rest being water), and an Al plate (A1050: 50 mm square x 1 mm thick) and a wire rod with a diameter of 2.4 mmφ were processed into a ring shape, and the outer diameter of the ring was adjusted. It was attached near 4343 brazing filler metal with a diameter of 13 mm and its wetting and spreading properties were tested. In addition, for the corrosion test, a brazing sheet (core material: 3003, skin material: 4343) was placed at right angles to an A1050 board, and flux was applied near the brazed points.
上記ぬれ広がり試験片および腐食試験片のいず
れもN2流入電気炉で、615℃，10秒間加熱した。
また比較のために本発明で用いたものと同じ形状
のぬれ広がりおよび腐食試験片で、フラツクスは
KF57モル％及びAlF343モル％の成分（比較例
２）、またZnF2を添加しないKF52モル％、
AlF348モル％（比較例１）を同様に10重量％の
濃度にして使用した。その結果、本発明のフラツ
クスを用いたのは、ぬれ広がりではNo.１の20モル
％が2.0〜2.3倍、No.２の35モル％が2.0〜2.2倍に
対し、比較例２のフラツクスのものは1.6〜1.8倍
を、またZnF2を添加しないフラツクスは1.7〜2.0
倍を示し、本発明のフラツクスが優れていること
が確認された。腐食試験はJISH8601のキヤス試
験で144h連続運転で行つた。その結果、AlF3と
KFだけのものおよびZnF2無添加のフラツクスを
用いた試験片には母材とろう材の近傍に多くの孔
食（A1050側に）が検出され、ろう付部から離れ
ている他の箇所にも検出された。孔食深さは0.4
〜0.7mmにも達していた。 Both the wet spread test piece and the corrosion test piece were heated at 615°C for 10 seconds in an N 2 inflow electric furnace.
For comparison, the flux was
Components of 57 mol% KF and 43 mol% AlF 3 (Comparative Example 2), and 52 mol% KF without adding ZnF 2 ;
48 mol% of AlF 3 (Comparative Example 1) was similarly used at a concentration of 10% by weight. As a result, when using the flux of the present invention, 20 mol% of No. 1 was 2.0 to 2.3 times as much and 35 mol% of No. 2 was 2.0 to 2.2 times that of the flux of Comparative Example 2 in terms of wetting and spreading. 1.6 to 1.8 times for fluxes, and 1.7 to 2.0 times for fluxes without ZnF 2 added.
It was confirmed that the flux of the present invention is superior. The corrosion test was conducted using the JISH8601 cathode test for 144 hours of continuous operation. As a result, AlF3 and
In the test specimens using only KF and the flux without ZnF 2 addition, a lot of pitting corrosion was detected near the base metal and filler metal (on the A1050 side), and in other places away from the brazed part. was also detected. Pitting depth is 0.4
It reached ~0.7mm.
腐食試験の結果では試料１および２のいずれと
も孔食はほとんど見られず、勿論孔食深さは測定
されなかつた。ろう付部あるいは他の部分の表面
にZnおよびZn合金の皮膜が形成されていた。耐
食性が一段と向上するのはろう付部全表面に緻密
なZn（OH）2が形成されていた事による。 As a result of the corrosion test, almost no pitting corrosion was observed in either Samples 1 and 2, and of course the depth of pitting corrosion was not measured. A film of Zn and Zn alloy was formed on the surface of the brazed part or other parts. The further improvement in corrosion resistance is due to the formation of dense Zn(OH) 2 on the entire surface of the brazed part.
更に製造したフラツクスおよびろう付後の残渣
フラツクスについてF-を調査した。その結果、
比較例１では９〜11mg、比較例２では４〜７mgの
F-が検出された。これに対し、No.１では４〜６
mg、No.２では２〜2.5mgといずれもF-は少なかつ
た。その原因としては、水の溶解度（100mlの水
の中に１ｇのフラツクスを投入）がKAlF4の214
mg、K3AlF4の825mg及びK2LiAlF6の133mgと異な
ることが考えられる。 Furthermore, F - was investigated for the manufactured flux and the residual flux after brazing. the result,
9 to 11 mg in Comparative Example 1 and 4 to 7 mg in Comparative Example 2
F- was detected. On the other hand, No. 1 has 4 to 6
mg, and No. 2 had a low F - content of 2 to 2.5 mg. The reason for this is that the solubility of water (1 g of flux added to 100 ml of water) is 214
mg, 825 mg for K 3 AlF 4 and 133 mg for K 2 LiAlF 6 .
本発明のフラツクスは、JISZ3263に規格され
ている一般的なAlろう材を使用したものにも適
用でき、かつろう付後のフラツクスの除去を必要
としない。更に耐食性に優れておりろう付部品の
信頼性が高くなる効果がある。 The flux of the present invention can also be applied to products using a general Al brazing material specified by JIS Z3263, and does not require removal of the flux after brazing. Furthermore, it has excellent corrosion resistance and has the effect of increasing the reliability of brazed parts.
Claims (1)
ZnF26〜15％およびLiF3〜25％よりなることを特
徴とするアルミニウムろう付用フラツクス。1 In molar ratio, AlF 3 30-55%, KF 35-60%,
An aluminum brazing flux characterized by comprising 6 to 15% ZnF2 and 3 to 25% LiF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4262082A JPS58159995A (en) | 1982-03-19 | 1982-03-19 | Flux for brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4262082A JPS58159995A (en) | 1982-03-19 | 1982-03-19 | Flux for brazing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58159995A JPS58159995A (en) | 1983-09-22 |
| JPS6366638B2 true JPS6366638B2 (en) | 1988-12-21 |
Family
ID=12641059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4262082A Granted JPS58159995A (en) | 1982-03-19 | 1982-03-19 | Flux for brazing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58159995A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947088A (en) * | 1982-09-10 | 1984-03-16 | Nippon Light Metal Co Ltd | Flux for brazing |
| JPS60102271A (en) * | 1983-11-07 | 1985-06-06 | Toyota Central Res & Dev Lab Inc | Brazing method of aluminum material |
| JPS60187496A (en) * | 1984-03-07 | 1985-09-24 | Sumitomo Light Metal Ind Ltd | Flux for brazing of aluminum alloy |
| JPS60187497A (en) * | 1984-03-07 | 1985-09-24 | Sumitomo Light Metal Ind Ltd | Flux for brazing of aluminum material |
| JPS60238081A (en) * | 1984-05-11 | 1985-11-26 | Hitachi Ltd | Formation of flux to member to be brazed and brazing method |
| US4901909A (en) * | 1988-08-18 | 1990-02-20 | Fusion Incorporated | Flux and process for brazing aluminum material |
| JP3674053B2 (en) * | 1993-12-24 | 2005-07-20 | 株式会社デンソー | Brazing flux, heat exchanger, and method of manufacturing heat exchanger |
| DE10044454A1 (en) * | 1999-12-14 | 2001-07-12 | Ford Global Tech Inc | Flux for CAB brazing of aluminum heat exchangers |
| KR101750128B1 (en) * | 2010-02-10 | 2017-06-22 | 솔베이 플루오르 게엠베하 | Flux forming an insoluble brazing residue |
| CN102717207B (en) * | 2012-05-31 | 2014-12-17 | 北京科技大学 | Medium-temperature non-corrosive aluminum brazing flux and preparation method thereof |
| CN111360447A (en) * | 2020-04-03 | 2020-07-03 | 李珮豪 | Self-service welding type silicon-aluminum alloy composite brazing powder and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3951328A (en) * | 1972-08-02 | 1976-04-20 | Alcan Research And Development Limited | Joining of metal surfaces |
| JPS54100956A (en) * | 1978-01-25 | 1979-08-09 | Sumitomo Electric Ind Ltd | Aluminum brazing |
| JPS5768297A (en) * | 1980-10-14 | 1982-04-26 | Nikkei Giken:Kk | Flux for brazing |
| JPS58132394A (en) * | 1982-02-03 | 1983-08-06 | Hitachi Ltd | Flux for brazing |
-
1982
- 1982-03-19 JP JP4262082A patent/JPS58159995A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3951328A (en) * | 1972-08-02 | 1976-04-20 | Alcan Research And Development Limited | Joining of metal surfaces |
| JPS54100956A (en) * | 1978-01-25 | 1979-08-09 | Sumitomo Electric Ind Ltd | Aluminum brazing |
| JPS5768297A (en) * | 1980-10-14 | 1982-04-26 | Nikkei Giken:Kk | Flux for brazing |
| JPS58132394A (en) * | 1982-02-03 | 1983-08-06 | Hitachi Ltd | Flux for brazing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58159995A (en) | 1983-09-22 |
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