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1. WO2016143119 - BRAZING SHEET WITH EXCELLENT CORROSION RESISTANCE AFTER BRAZING

Publication Number WO/2016/143119
Publication Date 15.09.2016
International Application No. PCT/JP2015/057306
International Filing Date 12.03.2015
IPC
C22C 21/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
C22C 21/02 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
02with silicon as the next major constituent
C22C 21/10 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
10with zinc as the next major constituent
B23K 35/28 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
28with the principal constituent melting at less than 950°C
CPC
B23K 1/0012
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
1Soldering, e.g. brazing, or unsoldering
0008specially adapted for particular articles or work
0012Brazing heat exchangers
B23K 2101/14
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2101Articles made by soldering, welding or cutting
04Tubular or hollow articles
14Heat exchangers
B23K 35/0233
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
02characterised by mechanical features, e.g. shape
0222for use in soldering, brazing
0233Sheets, foils
B23K 35/0238
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
02characterised by mechanical features, e.g. shape
0222for use in soldering, brazing
0233Sheets, foils
0238layered
B23K 35/28
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
28with the principal constituent melting at less than 950 degrees C
B23K 35/286
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
28with the principal constituent melting at less than 950 degrees C
286Al as the principal constituent
Applicants
  • 三菱アルミニウム株式会社 MITSUBISHI ALUMINUM CO., LTD. [JP]/[JP]
Inventors
  • 石上 翔 ISHIGAMI Sho
  • 岩尾 祥平 IWAO Shohei
Agents
  • 志賀 正武 SHIGA Masatake
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BRAZING SHEET WITH EXCELLENT CORROSION RESISTANCE AFTER BRAZING
(FR) TÔLE À BRASAGE PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA CORROSION APRÈS BRASAGE
(JA) ろう付け後の耐食性に優れるブレージングシート
Abstract
(EN)
The present invention relates to an aluminum alloy brazing sheet that comprises a core material, a sacrificial material, with which one surface of the core material has been clad, and a brazing material, with which the other surface of the core material has been clad, and that has a sheet thickness of 0.30 mm or less. The aluminum alloy brazing sheet is characterized in that the core material comprises an Al-Mn-Si-based aluminum alloy containing, in terms of mass%, 0.5-1.3% Cu, the sacrificial material comprises an aluminum alloy containing, in terms of mass%, 4.0-7.0% Zn, and the brazing material comprises an aluminum alloy containing, in terms of mass%, 6.0-11.0% Si and 0.1-3.0% Zn, and that the aluminum alloy brazing sheet after a heat treatment for brazing shows such pitting potentials that a region in the core material where the potential differs by 100 mV or greater from the noblest potential accounts for 10-50% of the sheet thickness.
(FR)
La présente invention se rapporte à une tôle à brasage en alliage d'aluminium, qui comprend un matériau d'âme, un matériau sacrificiel, avec lequel une surface du matériau d'âme a été revêtue, et un matériau d'apport de brasage, avec lequel l'autre surface du matériau d'âme a été revêtue, et qui a une épaisseur de tôle inférieure ou égale à 0,30 mm. La tôle à brasage en alliage d'aluminium est caractérisée en ce que le matériau d'âme comprend un alliage d'aluminium à base d'Al-Mn-Si contenant, en termes de % en masse, 0,5 à 1,3 % de Cu, le matériau sacrificiel comprend un alliage d'aluminium contenant, en termes de % en masse, 4,0 à 7,0 % de Zn et le matériau d'apport de brasage comprend un alliage d'aluminium contenant, en termes de % en masse, 6,0 à 11,0 % de Si et 0,1 à 3,0 % de Zn et en ce que la tôle à brasage en alliage d'aluminium après un traitement thermique pour brasage présente des potentiels d'amorçage de piqûres tels qu'une zone dans le matériau d'âme où le potentiel diffère de 100 mV ou plus du potentiel le plus noble représente 10 à 50 % de l'épaisseur de la tôle.
(JA)
 本発明は、芯材の一方の面に犠牲材を、他方の面にろう材をクラッドしたアルミニウム合金ブレージングシートであって、芯材が質量%でCu:0.5~1.3%を含有するAl-Mn-Si系アルミニウム合金からなり、犠牲材が質量%でZn:4.0~7.0%を含有するアルミニウム合金からなり、ろう材が質量%でSi:6.0~11.0%、Zn:0.1~3.0%含有するアルミニウム合金からなり、ろう付熱処理後の孔食電位において、芯材の最も貴な電位との電位差が100mV以上の領域が、材料板厚の10%~50%となることを特徴とする板厚が0.30mm以下のアルミニウム合金ブレージングシートに関する。
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