EP0100470A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Heat-resistant, wear-resistant, and high-strength aluminum alloy powder and body shaped therefrom
Assignee: Riken Corp
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Filing: 1983-07-12
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Granted: —
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Expires: 2003-07-12
Abstract
Abstract A heat-resistant, wear-resistant and high-strength aluminum alloy powder is described which contains from approximately 10.0% to approximately 30.0% of silicon and at least one element selected from the group consisting of from approximately 5.0% to approximately 15.0% of nickel, from approximately 3.0% to approximately 15.0% of iron, and from approximately 5.0% to approximately 15.0% of manganese, the silicon crystals in the aluminum alloy powder being 15 µm or less in size. Due to the content of nickel, iron, and manganese, the matrix is hardened and strengthened by the presence of finely dispersed intermetallic compounds and the silicon crystals. Further, a shaped body, e.g., a hot-extruded shaped body, is described comprising an aluminum alloy powder having the above composition, the intermetallic compounds being 20 µm or less in size being finely distributed in the shaped body.
Inventors
- 👤 Fumio Kiyota
- 👤 Tatsuo Fujita
- 👤 Tadao Hirano
- 👤 Shin'ichi Horie
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 02:41
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0085; B; B22; B22F; B22F3/00; B22F3/20; C; C22; C22C; C22C1/00; C22C1/04; C22C1/0408; C22C1/0416; F02F1/00; F02F1/004; F05; F05C; F05C2251/00; F05C2251/04; F05C2251/042
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
85 words
A heat-resistant, wear-resistant and high--strength aluminum alloy powder which contains from approximately 10.0% by weight to approximately 30.0% by weight of silicon and at least one element selected from the group consisting of from approximately 5.0% by weight to approximately 15.0% by weight of nickel, from approximately 3.0% by weight to approximately 15.0% by weight of iron, and from approximately 5.0% by weight to approximately 15.0% by weight of manganese, the silicon crystals in said aluminum alloy powder being 15 µm or less in size.
Claim 2
Dependent Claim
85 words
A heat-resistant, wear-resistant and high--strength aluminum alloy powder which contains from approximately 10.0% by weight to approximately 30.0% by weight of silicon and at least one element selected from the group consisting of from approximately 5.0% by weight to approximately 15.0% by weight of nickel, from approximately 3.0% by weight to approximately 15.0% by weight of iron, and from approximately 5.0% by weight to approximately 15.0% by weight of manganese, the silicon crystals in said aluminum alloy powder being 15 µm or less in size.
Claim 3
Dependent Claim
39 words
A heat-resistant, wear-resistant, and high--strength aluminum alloy powder according to claim 1, which contains from approximately 0.5% by weight to approximately 5.0% by weight of copper and/or from approximately 0.2% by weight to approximately 3.0% by weight of magnesium.
Claim 4
Dependent Claim
26 words
A heat-resistant, wear-resistant, and high--strength aluminum alloy powder according to claim 1 or 2, the particles of which are usually 0.5 mm or less in diameter.
Claim 5
Dependent Claim
23 words
A heat-resistant, wear-resistant, and high--strength aluminum alloy powder according to claim 1 or 2, which is formed by pulverizing and solidifying a melt.
Claim 6
Dependent Claim
28 words
A heat-resistant, wear-resistant, and high--strength aluminum alloy powder according to claim 1 or 2, wherein a preferable silicon content is from 15.0% by weight to 25.0% by weight.
Claim 7
Dependent Claim
113 words
A. shaped body which comprises heat-resistant, wear-resistant, and high-strength aluminum alloy powders, said powders containing from approximately 10.0% by weight to approximately 30.0% by weight of silicon and at least one element selected from the group consisting of from approximately 5.0% by weight to approximately 15.0% by weight of nickel, from approximately 3.0% by weight to approximately 15.0% by weight of iron, and from approximately 5.0% by weight to approximately 15.0% by weight of manganese, the silicon crystals in said shaped body being 15 µm or less in size, and the intermetallic compounds comprising said at least one selected element 20 um or less in size being finely distributed in said shaped body.
Claim 8
Dependent Claim
113 words
A. shaped body which comprises heat-resistant, wear-resistant, and high-strength aluminum alloy powders, said powders containing from approximately 10.0% by weight to approximately 30.0% by weight of silicon and at least one element selected from the group consisting of from approximately 5.0% by weight to approximately 15.0% by weight of nickel, from approximately 3.0% by weight to approximately 15.0% by weight of iron, and from approximately 5.0% by weight to approximately 15.0% by weight of manganese, the silicon crystals in said shaped body being 15 µm or less in size, and the intermetallic compounds comprising said at least one selected element 20 um or less in size being finely distributed in said shaped body.
Claim 9
Dependent Claim
41 words
A shaped body according to claim 6, which contains from approximately 0.2% by weight to approximately 5.0% by weight of at least one solid lubricant selected from the group consisting of graphite, molybdenum disulphide (MoS 2 ), and boron nitride (BN).
Claim 10
Dependent Claim
36 words
A shaped body according to claim 6 or 7, which contains from approximately 0.5% by weight to approximately 5.0% by weight of copper and/or from approximately 0.2% by weight to approximately 3.0% by weight of magnesium.
Claim 11
Dependent Claim
33 words
A shaped body according to claim 6 or 7, wherein the majority of the intermetallic compounds are 5 µm in size and the remainder of the intermetallic compounds are 20 µm in size.
Claim 12
Dependent Claim
15 words
A shaped body according to claim 6 or 7, which is a hot-extruded shaped body.
References Cited (Backward Citations)
No citation records indexed.
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