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AssigneeSuzuki Motor Corporation
InventorsMasayoshi Suzuoki, Hiromitsu Kaneda, Yoshinobu Sano
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This invention provides a process which permits impurity-free sound Mg-based composite materials and Mg alloy-based composite materials to be efficiently and inexpensively produced without pressurizing a melt of matrix metal and without using a metal oxide, finely divided metal or metal fluoride. Specifically, it provides a process for producing an Mg-based composite material or an Mg alloy-based composite material which comprises replacing the gas within a mass of reinforcing material (9) by a non-protective gas, and bringing at least a part of the mass of reinforcing material (9) into contact with a melt (7) of Mg or Mg alloy so as to infiltrate the melt (7) into the mass of reinforcing material (9).
A process for producing an Mg-based composite material or an Mg alloy-based composite material which comprises providing a mass of reinforcing material having therewithin a gas consisting essentially of N.sub.2 gas, O.sub.2 gas, CO.sub.2 gas or a mixture thereof, wherein the combined amount of gas within said mass of reinforcing material is not less than 98% by volume of the total amount of the gas within said mass of reinforcing material and, among other impurity gases, the concentrations of SF.sub.6 gas and SO.sub.2 gas are each less than 0.1% by volume based on the total amount of the gas within said mass of reinforcing material;
A process for producing an Mg-based composite material or an Mg alloy-based composite material as claimed in claims wherein the step of restricting the flow of gas into said mass of reinforcing material comprises immersing said mass of reinforcing material totally in said melt of Mg or Mg alloy, or surrounding said mass of reinforcing material with a metal mold and said melt.
Dependencies are inferred from the claim text.