US5744255A
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Aluminum alloy brazing material and brazing sheet adaptable for heat exchanges
Assignee: SUIKOH TOPLINE CO Ltd
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Filing: 1996-09-03
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Granted: 1998-04-28
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Expires: 2016-09-03
Abstract
Abstract A typical aluminum alloy brazing material includesover 7.0 wt. % and not more than 12.0 wt. % of Si: over 0.1 wt. % and not more than 8.0 wt. % of Cu. over 0.05 wt. % and not more than 0.5 wt. % or Fe, further at least one kind selected from a group consisting of over 0.5 wt. % and not more than 5.5 wt. % of Zn. over 0.002 wt. % and not more than 0.3 wt % of In and over 0.002 wt. % and not more than 0.3 wt. % of Sn, and the balance of Al an inevitable impurities. A typical cladded aluminum alloy brazing sheet with a three-layer structure includes a brazing material, a core material comprising over 0.6 wt. % and not more than 2.5 wt. % of Si, over 0.5 wt. % and not more 2.5 wt. % of Cu, over 0.05 wt. % and not more than 2.0 wt. % of Mn, and the balance of Al and inevitable impurities, and a sacrificial material comprising at least one kind selected from a group consisting of over 0.5 wt. % and not more than 6.0 wt. % of Zn. over 0.002 wt. % and not more than 0.3 wt. % of In, and over 0.002 wt. % and not more than 0.3 wt. % of Sn, and the balance of Al and inevitable impurities, or comprises a core material cladded both sides thereof with the brazing material. By using the inventive brazing materials or brazing sheets, the brazing heating can be performed at a temperature of 570 DEG to 585 DEG C.
Inventors
- 👤 Takeyoshi Doko
- 👤 Koji Okada
- 👤 Tokinori Onda
- 👤 Hiroaki Takeuchi
- 👤 Yoji Hirano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:08
CPC Classifications
F; F28; F28D; F28D7/00; F28F; F28F21/00; F28F21/08; F28F21/089; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; B32; B32B; B32B15/00; B32B15/01; B32B15/016; F28F21/081; F28F21/084; F28F3/00; B23K35/02; B23K35/0222; B23K35/0233; B23K35/0238; B23K35/288; Y; Y10; Y10S; Y10S165/00; Y10S165/905; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/933; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
208 words
An aluminum alloy brazing sheet comprising, in weight percent: a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.8% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further including at least one member selected from the group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities; said core material being an aluminum alloy including from about 0.6% to about 2.5% of Si, from about 0.5% to about 2.5% of Cu co-existing with said Si, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 2
Dependent Claim
208 words
An aluminum alloy brazing sheet comprising, in weight percent: a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.8% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further including at least one member selected from the group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities; said core material being an aluminum alloy including from about 0.6% to about 2.5% of Si, from about 0.5% to about 2.5% of Cu co-existing with said Si, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 3
Dependent Claim
63 words
The aluminum alloy brazing sheet of claim 1, wherein said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni.
Claim 4
Dependent Claim
41 words
The aluminum alloy brazing sheet of claim 1, wherein said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 5
Dependent Claim
96 words
The aluminum alloy brazing sheet of claim 1, wherein: said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni; and said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 6
Dependent Claim
206 words
An aluminum alloy brazing sheet comprising, in weight percent: a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.5% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further including at least one member selected from the group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities; said core material being an aluminum alloy including from about 1.2% to about 2.5% of Si, from about 0.5% to about 2.5% of Cu, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; a sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3 wt. % of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 7
Dependent Claim
206 words
An aluminum alloy brazing sheet comprising, in weight percent: a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.5% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further including at least one member selected from the group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities; said core material being an aluminum alloy including from about 1.2% to about 2.5% of Si, from about 0.5% to about 2.5% of Cu, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; a sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3 wt. % of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 8
Dependent Claim
63 words
The aluminum alloy brazing sheet of claim 5, wherein said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni.
Claim 9
Dependent Claim
41 words
The aluminum alloy brazing sheet of claim 5, wherein said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 10
Dependent Claim
96 words
The aluminum alloy brazing sheet of claim 5, wherein: said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni; and said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 11
Dependent Claim
206 words
An aluminum alloy brazing sheet for heat-exchangers comprising, in weight percent; a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.8% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further including at least one member selected form a group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities;. said core material being an aluminum alloy including from about 0.6% to about 2.5% of Si, from above 0.8% to about 2.5% of Cu, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 12
Dependent Claim
206 words
An aluminum alloy brazing sheet for heat-exchangers comprising, in weight percent; a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.8% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further including at least one member selected form a group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities;. said core material being an aluminum alloy including from about 0.6% to about 2.5% of Si, from above 0.8% to about 2.5% of Cu, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 13
Dependent Claim
63 words
The aluminum alloy brazing sheet of claim 9, wherein said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni.
Claim 14
Dependent Claim
41 words
The aluminum alloy brazing sheet of claim 9, wherein said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 15
Dependent Claim
96 words
The aluminum alloy brazing sheet of claim 9, wherein: said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni; and said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 16
Dependent Claim
207 words
An aluminum alloy brazing sheet for heat-exchangers comprising, in weight percent: a brazing material, a core material, and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.5% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe: said brazing material further including at least one member selected form a group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities; said core material being an aluminum alloy including from about 1.2% to about 2.5% of Si, from above 0.8% to about 2.5% of Cu, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially of Al and inevitable impurities.
Claim 17
Dependent Claim
207 words
An aluminum alloy brazing sheet for heat-exchangers comprising, in weight percent: a brazing material, a core material, and a sacrificial material; said brazing material being an aluminum alloy including from about 7.0% to about 12.0% of Si, over 0.5% to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe: said brazing material further including at least one member selected form a group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said brazing material being substantially Al and inevitable impurities; said core material being an aluminum alloy including from about 1.2% to about 2.5% of Si, from above 0.8% to about 2.5% of Cu, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy including at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially of Al and inevitable impurities.
Claim 18
Dependent Claim
63 words
The aluminum alloy brazing sheet of claim 13, wherein said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni.
Claim 19
Dependent Claim
41 words
The aluminum alloy brazing sheet of claim 13, wherein said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 20
Dependent Claim
96 words
The aluminum alloy brazing sheet of claim 13, wherein: said core material further includes at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni; and said sacrificial material further includes at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 21
Dependent Claim
221 words
An aluminum alloy brazing sheet consisting essentially of, in weight percent: a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy further consisting essentially of from about 7.0% to about 12.0% of Si, over 0.8%. to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further consisting essentially of at least one member selected from the group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said braising material being substantially Al and inevitable impurities; said core material being an aluminum alloy further consisting essentially of from about 0.6% to about 2.5% of Si, from about 0.5% to about 2.5% of Cu co-existing with said Si, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy further consisting essentially of at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 22
Dependent Claim
221 words
An aluminum alloy brazing sheet consisting essentially of, in weight percent: a brazing material, a core material and a sacrificial material; said brazing material being an aluminum alloy further consisting essentially of from about 7.0% to about 12.0% of Si, over 0.8%. to about 8.0% of Cu, and from about 0.05% to about 0.5% of Fe; said brazing material further consisting essentially of at least one member selected from the group consisting of from about 0.5% to about 5.5% of Zn, from about 0.002% to about 0.3% of In and from about 0.002% to about 0.3% of Sn; a balance of said braising material being substantially Al and inevitable impurities; said core material being an aluminum alloy further consisting essentially of from about 0.6% to about 2.5% of Si, from about 0.5% to about 2.5% of Cu co-existing with said Si, and from about 0.05% to about 2.0% of Mn; a balance of said core material being substantially Al and inevitable impurities; said sacrificial material being an aluminum alloy further consisting essentially of at least one member selected from the group consisting of from about 0.5% to about 6.0% of Zn, from about 0.002 to about 0.3% of In, and from about 0.002% to about 0.3% of Sn; and a balance of said sacrificial material being substantially Al and inevitable impurities.
Claim 23
Dependent Claim
66 words
The aluminum alloy brazing sheet of claim 17, wherein said core material is further consisting essentially of at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni.
Claim 24
Dependent Claim
44 words
The aluminum alloy brazing sheet of claim 17, wherein said sacrificial material is further consisting essentially of at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
Claim 25
Dependent Claim
102 words
The aluminum alloy brazing sheet of claim 17, wherein: said core material is further consisting essentially of at least one member selected from the group consisting of from about 0.03 to about 0.5% Mg, from about 0.03% to about 0.3% of Cr, from about 0.03% to about 0.3% of Zr, from about 0.03% to about 0.3% of Ti, and from about 0.03% to about 1.5% Ni; and said sacrificial material is further consisting essentially of at least one member selected from the group consisting of from about 0.05% to about 2.5% of Mg and from about 0.05% to about 1.6% of Mn.
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