FR2517700A1 - AL BRAZING ALLOY - Google Patents
AL BRAZING ALLOY Download PDFInfo
- Publication number
- FR2517700A1 FR2517700A1 FR8122970A FR8122970A FR2517700A1 FR 2517700 A1 FR2517700 A1 FR 2517700A1 FR 8122970 A FR8122970 A FR 8122970A FR 8122970 A FR8122970 A FR 8122970A FR 2517700 A1 FR2517700 A1 FR 2517700A1
- Authority
- FR
- France
- Prior art keywords
- alloy
- brazing
- plated
- brazing alloy
- solder
- 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
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
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
Abstract
LA PRESENTE INVENTION CONCERNE UN ALLIAGE D'ALUMINIUM DE BRASAGE PRESENTANT DES CARACTERISTIQUES AMELIOREES, EN PARTICULIER POUR LE BRASAGE SANS FLUX. CET ALLIAGE PRESENTE LA COMPOSITION SUIVANTE (EN POIDS): SI 6 A 12; FE 0,7: MG 0,5 A 1,5: BI 0,20 A 0,35: V 0,05 A 0,25; RESTE A1 ET IMPURETES. CET ALLIAGE EST PARTICULIEREMENT BIEN ADAPTE AU BRASAGE DES ECHANGEURS DE CHALEUR, EN PARTICULIER DE RADIATEURS D'AUTOMOBILES.THE PRESENT INVENTION RELATES TO A BRAZING ALUMINUM ALLOY WITH IMPROVED CHARACTERISTICS, IN PARTICULAR FOR FLUX-FREE BRAZING. THIS ALLOY HAS THE FOLLOWING COMPOSITION (BY WEIGHT): SI 6 TO 12; FE 0.7: MG 0.5 A 1.5: BI 0.20 A 0.35: V 0.05 A 0.25; REMAIN A1 AND IMPURITIES. THIS ALLOY IS PARTICULARLY WELL ADAPTED TO THE BRAZING OF HEAT EXCHANGERS, IN PARTICULAR OF AUTOMOTIVE RADIATORS.
Description
1770017700
_ I _ ALLIAGE DE BRASAGE A BASE D'Al _ I _ ALLOY ALLOY AL
La présente invention concerne un alliage d'aluminium de brasage présen- The present invention relates to an aluminum brazing alloy having
tant des caractéristiques améliorées, en particulier pour le brasage sans flux. Les alliages d'Al pour brasage sans flux sont connus depuis longtemps et présentent une grande variété de compositions chimiques Les alliages les plus couramment utilisés contiennent essentiellement du Si, du Mg, both improved features, especially for soldering without flux. Al alloys for fluxless soldering have long been known and have a wide variety of chemical compositions. The most commonly used alloys contain mainly Si, Mg,
et/ou du Bi; bien que ces alliages soient adaptés à la technique de bra- and / or Bi; although these alloys are adapted to the braking technique
sage sous vide pour la formation de joints brasés corrects, des amélio- under vacuum for the formation of correct brazed joints, improved
rations sont souhaitées dans deux domaines: a) aptitude au brasage: bonne mouillabilité dans un vide peu poussé, b) joints brasés étanches (absence de soufflures, fissures, etc) L'objectif de la présente invention est de trouver un alliage de brasure, dont la mise en oeuvre est plus aisée dans un vide de l'ordre de 10-4 Torr 13,33 m Pa et dont la fiabilité de joints, en ce qui concerne leur Rations are desired in two areas: a) solderability: good wettability in shallow vacuum, b) sealed soldered joints (absence of blisters, cracks, etc.). The object of the present invention is to find a solder alloy, whose implementation is easier in a vacuum of the order of 10-4 Torr 13.33 Pa and the reliability of joints, as regards their
étanchéité, est accrue.sealing, is increased.
Ce problème est résolu par l'adjonction à une brasure contenant (en poids) 6 à 12 % de Si jusqu'à 0 J 7 % de Fe 0,5 à 1,5 % de Mg 0,2 à 0,35 % de Bi d'une quantité de V comprise entre 0,05 et 0,25 % Au-dessous de 0,05 %, This problem is solved by the addition to a solder containing (by weight) 6 to 12% Si to 0% 7% Fe 0.5 to 1.5% Mg 0.2 to 0.35%. Bi of an amount of V between 0.05 and 0.25% below 0.05%,
l'effet de V est négligeable et au-dessus de 0,25 %, le prix de l'allia- the effect of V is negligible and above 0.25%, the price of the alli-
ge devient trop élevé et des difficultés d'élaboration risquent d'ap- age becomes too high and difficulties in
paraître.appear.
L'alliage peut naturellement comporter d'autres éléments à l'état d'im- The alloy can naturally include other elements in the state of im-
puretés, chacun étant inférieur à 0,05 % et le total 4 0,15 %. purities, each being less than 0.05% and the total 4 0.15%.
Les exemples suivants illustrent l'effet de V dans la brasure considérée, The following examples illustrate the effect of V in the solder considered,
la figure I représentant un montage d'essais. Figure I showing a test setup.
EXEMPLE 1EXAMPLE 1
Des essais de brasage ont été réalisés à l'aide d'un montage représenté 2 sur la figure 1, constitué d'un tube ( 1) en alliage 3003 de 14,5 mm de diamètre extérieur, enfilé dans un support en U ( 2) provenant d'une t 8 ôle en 3003 épaisseur 2 mm, état recuit, plaquée 10 % de l'épaisseur totale sur chacune de ces deux faces par l'alliage à braser et percée dlun trou ( 3) de 15,5 mm de diamètre On fait subir à l'assemblage, posé sur son embase ( 4) horizontale un cycle de brasage sous vide, après quoi on mesure les paramètres indiqués: L longueur de la brasure entre tube ( 1) et trou ( 3) R = rayon de raccordement entre le tube ( 1) et l'embase ( 4) du support ( 2) en U r et r': rayons de raccordement au tube ( 1) de la brasure située dans Brazing tests were carried out using a mounting shown in FIG. 1, consisting of a tube (1) of alloy 3003 of 14.5 mm outside diameter, threaded into a U-shaped support (2). ) from an annealed plate in 3003 thickness 2 mm, plated 10% of the total thickness on each of these two faces by the alloy to be soldered and pierced with a hole (3) of 15.5 mm diameter The assembly, placed on its horizontal base (4), undergoes a vacuum brazing cycle, after which the indicated parameters are measured: L length of the solder between tube (1) and hole (3) R = radius connection between the tube (1) and the base (4) of the support (2) made of U r 'and r': radii of connection to the tube (1) of the solder located in
l'espace entre tube ( 1) et le trou ( 3). the space between tube (1) and the hole (3).
La qualité de la brasure est d'autant meilleure que ces valeurs sont plus 6 levées Par ailleurs, l'obtention de grands rayons de courbure The quality of the solder is all the better as these values are higher. In addition, obtaining large radii of curvature
contribue à une meilleure résistance mécanique de l'assemblage Le cy- contributes to a better mechanical strength of the assembly.
cle de brasage appliqué a été le suivant, les pièces étant préalable- the brazing key applied was the following, the parts being
ment dégraissées au trichloréthylène en phase vapeur: départ four chaud, vide de 10 -4 mm de Hg ( 13,33 m Pa) four à 245 C introduction de l'assemblage -2 pompage 5 minutes à 10-2 mm de Hg ( 1,33 Pa) double balayage d'argon 20 1/minute pompage primaire 10 minutes à 10 -2 mm de Hg ( 1,33 Pa) pompage secondaire 25 minutes à 10 -4 mm de Hg ( 13,33 m Pa) montée à 600 C en 10 minutes à 10 -4 mm de Hg ( 13,33 m Pa) maintien 5 minutes à 595 C refroidissement à 500 C en 15 secondes introduction argon ouverture four Les résultats obtenus sur deux alliages de brasure dont lesócompositions sont les suivantes (poids %): Alliage Fe Si Mg Bi V Vapor phase trichlorethylene degreasers: hot furnace discharge, vacuum of 10 -4 mm Hg (13.33 Pa) oven at 245 ° C introduction of the assembly -2 pumping 5 minutes at 10-2 mm Hg (1 , 33 Pa) double argon sweep 20 1 / minute primary pumping 10 minutes at 10 -2 mm Hg (1.33 Pa) secondary pumping 25 minutes at 10 -4 mm Hg (13.33 Pa) 600 C in 10 minutes at 10 -4 mm Hg (13.33 Pa) maintaining 5 minutes at 595 C cooling at 500 C in 15 seconds introduction argon oven opening The results obtained on two solder alloys whosecompositions are the following ( weight%): Alloy Fe Si Mg Bi V
A 0,43 9,3 1,5 0,21 -A 0.43 9.3 1.5 0.21 -
1,21.2
0,21 0,120.21 0.12
B 0,40 3 - sont reportés au Tableau I. B 0.40 3 - are reported in Table I.
Tableau ITable I
ALLIAGE L R r r' mm lm Um mmALLOY L R mm mm Um mm
A 30,8:,18 0,94 1,15At 30.8:, 18 0.94 1.15
B 34,9 -,61 1,30 1,32B 34.9 -, 61 1.30 1.32
EXEMPLE 2EXAMPLE 2
Des radiateurs industriels (conditionneurs d'air de Chrysler 100) comportant deux plaques collectrices en t 3 les de 2 mm à l'état recuit plaquées, 10 % sur chacune des deux faces par l'alliage à étudier (soit 0, 2 mm d'épaisseur par face), un faisceau de tubes méplats en 3003, un ailetage en 6063 plaqué 4104 et des joues non plaquées ont Industrial radiators (Chrysler 100 air conditioners) with two plated plates 2 mm in the annealed state plated, 10% on each side by the alloy to be studied (0.2 mm d thickness per face), a flattened tube bundle at 3003, a 6063 plated veneer 4104 and unplated cheeks were
été fabriqués.been manufactured.
Les tôles collectrices plaquées étaient: 1) soit en 6063 plaqué 4104 (fabrication standard) 2) soit en 3003 plaqué d'alliage B. Apres cycle de brasage industriel, les radiateurs ont été contrôlés et on a mesuré le taux de fuite (c'est-à-dire le nombre de joints non The plated collector plates were: 1) either 6063 plated 4104 (standard manufacture) 2) or 3003 plated with alloy B. After the industrial soldering cycle, the radiators were checked and the leakage rate was measured ( that is to say the number of joints
étanches rapporté au nombre de joints effectués). watertight relative to the number of joints made).
Les résultats ont été les suivants: The results were as follows:
1) 5,1 % 2) 2,14 %1) 5.1% 2) 2.14%
ces résultats étant significativement différents. these results being significantly different.
-4--4-
Claims (1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8122970A FR2517700B1 (en) | 1981-12-03 | 1981-12-03 | AL-BASED BRAZING ALLOY |
DE19823244634 DE3244634A1 (en) | 1981-12-03 | 1982-12-02 | ALUMINUM-BASED SOLDER ALLOY |
GB08234360A GB2111529B (en) | 1981-12-03 | 1982-12-02 | Aluminium-based brazing alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8122970A FR2517700B1 (en) | 1981-12-03 | 1981-12-03 | AL-BASED BRAZING ALLOY |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2517700A1 true FR2517700A1 (en) | 1983-06-10 |
FR2517700B1 FR2517700B1 (en) | 1986-05-02 |
Family
ID=9264807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8122970A Expired FR2517700B1 (en) | 1981-12-03 | 1981-12-03 | AL-BASED BRAZING ALLOY |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3244634A1 (en) |
FR (1) | FR2517700B1 (en) |
GB (1) | GB2111529B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2562092A1 (en) * | 1984-03-30 | 1985-10-04 | Sumitomo Precision Prod Co | ALUMINUM ALLOY FOR SOLDERING WITH AND WITHOUT FLOW |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4735867A (en) * | 1985-12-06 | 1988-04-05 | Kaiser Aluminum & Chemical Corporation | Corrosion resistant aluminum core alloy |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB605282A (en) * | 1945-12-01 | 1948-07-20 | Nat Smelting Co | Improvements in or relating to aluminium silicon alloys |
FR1172694A (en) * | 1957-02-25 | 1959-02-13 | Kaiser Aluminium Chem Corp | Aluminum-based alloys and their application on ferrous metal bases |
GB1151231A (en) * | 1965-06-01 | 1969-05-07 | Comalco Alu | Aluminium Base Alloys |
FR2233402A1 (en) * | 1973-06-15 | 1975-01-10 | Marston Radiators Ltd | |
FR2233132A1 (en) * | 1973-06-14 | 1975-01-10 | Ver Deutsche Metallwerke Ag | Brazing powder for aluminium alloys used without fluxes - comprising silicon, magnesium, bismuth and aluminium |
FR2236609A1 (en) * | 1973-05-25 | 1975-02-07 | Reynolds Metals Co | |
FR2359904A1 (en) * | 1976-07-29 | 1978-02-24 | Alusuisse | ALUMINUM-BASED COMPOSITE MATERIAL |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2143965C3 (en) * | 1971-09-02 | 1981-11-26 | Vereinigte Aluminium-Werke Ag, 5300 Bonn | Use of a solder for flux-free brazing of aluminum materials in protective gas, inert gas or vacuum |
-
1981
- 1981-12-03 FR FR8122970A patent/FR2517700B1/en not_active Expired
-
1982
- 1982-12-02 DE DE19823244634 patent/DE3244634A1/en active Granted
- 1982-12-02 GB GB08234360A patent/GB2111529B/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB605282A (en) * | 1945-12-01 | 1948-07-20 | Nat Smelting Co | Improvements in or relating to aluminium silicon alloys |
FR1172694A (en) * | 1957-02-25 | 1959-02-13 | Kaiser Aluminium Chem Corp | Aluminum-based alloys and their application on ferrous metal bases |
GB1151231A (en) * | 1965-06-01 | 1969-05-07 | Comalco Alu | Aluminium Base Alloys |
FR2236609A1 (en) * | 1973-05-25 | 1975-02-07 | Reynolds Metals Co | |
FR2233132A1 (en) * | 1973-06-14 | 1975-01-10 | Ver Deutsche Metallwerke Ag | Brazing powder for aluminium alloys used without fluxes - comprising silicon, magnesium, bismuth and aluminium |
FR2233402A1 (en) * | 1973-06-15 | 1975-01-10 | Marston Radiators Ltd | |
FR2359904A1 (en) * | 1976-07-29 | 1978-02-24 | Alusuisse | ALUMINUM-BASED COMPOSITE MATERIAL |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2562092A1 (en) * | 1984-03-30 | 1985-10-04 | Sumitomo Precision Prod Co | ALUMINUM ALLOY FOR SOLDERING WITH AND WITHOUT FLOW |
Also Published As
Publication number | Publication date |
---|---|
DE3244634C2 (en) | 1987-01-02 |
GB2111529A (en) | 1983-07-06 |
FR2517700B1 (en) | 1986-05-02 |
DE3244634A1 (en) | 1983-06-16 |
GB2111529B (en) | 1985-03-13 |
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