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US4847048A
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Aluminum die-casting alloys
Assignee: Ryobi Ltd
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Filing: 1987-07-21
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Granted: 1989-07-11
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Expires: 2007-07-21
Abstract
Abstract An alluminum alloy composition represented by the following general formula (I): Al.sub.a Mg.sub.b Ni.sub.c Mn.sub.d Si.sub.e Cu.sub.f Fe.sub.g Ti.sub.h Zn i B k Zr l (I) wherein b=about 2-8 wt % c=0--about 7 wt % d=0--about 3.0 wt % e=0--about 1.0 wt % f=0--about 1.0 wt % g=0--about 0.5 wt % h=0--about 0.3 wt % i=0--about 0.3 wt % j=0--about 0.1 wt % k=0--about 0.1 wt % and l=0--about 0.3 wt %; provided that c+d≧about 0.5 wt %, and a is balance.
Inventors
- 👤 Naomi Nishi
- 👤 Shigetake Kami
- 👤 Takashi Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:16
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
An aluminum die-casting alloy composition represented by formula I: Al.sub.a Mg.sub.b Ni.sub.c Mn.sub.d Si.sub.e Cu.sub.f Fe.sub.g Ti.sub.h Zn.sub.i B.sub.k Zr.sub.1 wherein b=about 2-5.5, wt. % c=about 1-5.5, wt. % d=about 0.5-2.5, wt. % e=0--about 0.5, wt. % f=0--about 0.5, wt. % g=0--about 0.5, wt. % h=0--about 0.3, wt.% i=0--about 0.3, wt. % k=0--about 0.1, wt. % l=0, wt. % provided that h and k do not equal 0 wt % simultaneously, and a is balance, wt %.
Claim 2
Dependent Claim
77 words
An aluminum die-casting alloy composition represented by formula I: Al.sub.a Mg.sub.b Ni.sub.c Mn.sub.d Si.sub.e Cu.sub.f Fe.sub.g Ti.sub.h Zn.sub.i B.sub.k Zr.sub.1 wherein b=about 2-5.5, wt. % c=about 1-5.5, wt. % d=about 0.5-2.5, wt. % e=0--about 0.5, wt. % f=0--about 0.5, wt. % g=0--about 0.5, wt. % h=0--about 0.3, wt.% i=0--about 0.3, wt. % k=0--about 0.1, wt. % l=0, wt. % provided that h and k do not equal 0 wt % simultaneously, and a is balance, wt %.
References Cited (Backward Citations)
US1932840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |