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US 5,401,338 AGranted
Process for making metal-matrix composites reinforced by ultrafine reinforcing materials products thereof
OwnerChing-Bin Lininventor
Life of this patent
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Abstract
A process for making metal-matrix composite includes adding ultrafine reinforcing material having a particle size as fine as 0.05 .mu.m into the metal alloy matrix in a refining furnace to be homogeneously dispersed in the matrix for producing metal-matrix composite by a refining process, which is degassed to remove gases to eliminate porosity in the composite, thereby producing metal-matrix composite having improved mechanical properties.
Claims6
A process for making aluminum alloy-matrix composites comprising:
- preparing a suspension liquid by suspending ultrafine reinforcing material in a distilled water containing a dispersing agent therein in a closed condition;
- oscillating the suspension liquid by ultrasonic waves in the closed condition;
- preheating the suspension liquid at a temperature from 100.degree. C. to 660.degree. C.;
- melting an aluminum alloy matrix at a temperature from 660.degree. C. to 700.degree. C. and distributing the suspension liquid, which is pre-heated, onto a surface of a molten solution of the aluminum alloy matrix under continuously agitating for mixing said matrix and said reinforing material by a distributing method;
- degassing a molten solution of an aluminum alloy-matrix composite formed by said aluminum alloy matrix reinforced with said ultrafine reinforcing material;
- and casting the molten solution of the aluminum alloy-matrix composite to form an ingot.
3 more elements
Dependencies are inferred from the claim text.