Production method and production device for a composite metal powder using the gas spraying method
AssigneeKorea Institute of Machinery & Materials
InventorsYong-Jin Kim, Sangsun Yang, Tae-Soo Lim
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Abstract
Disclosed herein are a method and an apparatus for preparing a metal composite powder by using gas spraying. The method of preparing a metal composite powder by using gas spraying includes introducing a matrix phase in a chamber, including a reinforcing phase in the chamber, melting the introduced matrix phase to form a melt, adding the reinforcing phase in the melt, stirring the melt with the added reinforcing phase to form a melt mixture, atomizing the melt mixture together with a gas to form a metal composite powder containing the reinforcing phase, and collecting the metal composite powder formed.
Claims9
A method of preparing a metal composite powder by gas spraying, the method comprising:
- preparing a melt by melting an aluminum material, wherein the aluminum material is selected from the group consisting an aluminum ingot and an aluminum-silicon (Al—Si) based alloy, at a melt temperature to produce a melt;
- adding a SiC reinforcing phase material to the melt to form a reinforced metal melt;
- increasing the melt temperature to a temperature above 700° C. and below 800° C. within 5 minutes to 30 minutes.
- wherein no additional heat treatments exceed 800° C.;
- and
- atomizing the reinforcing metal melt with a gas to prepare a metal composite powder.
Dependencies are inferred from the claim text.