Claims
- 1. A method for making a composite material, comprising the steps, performed in the specified sequence, of:
- (a) charging porous reinforcing material into a tubular member having two open opposite ends;
- (b) replacing substantially all of the atmospheric air occupying the space in said tubular member including the interstices of said reinforcing material by substantially pure oxygen gas by blowing oxygen gas into said tubular member from one of said open ends thereof while exhausting the air in said space from the other of said open ends thereof;
- (c) closing only one of said open ends of said tubular member while substantially maintaining the conditions obtained by step (b);
- (d) submerging said tubular member charged with said reinforcing material and oxygen gas into a bath of molten metal, the molten metal thereby flowing into said tubular member through said one open end thereof and filling the space in said tubular member including the interstices of said reinforcing material as the oxygen gas which has been occupying said space in said tubular member including said interstices loses its volume by reacting with the molten metal; and
- (e) taking out said tubular member from said bath of molten metal and cooling it down to solidify the molten metal in said tubular member.
- 2. A method according to claim 1, wherein a getter element is placed into said tubular member from said one open end which is going to be closed just before the completion of step (c).
- 3. A method according to claim 1, wherein said reinforcing material comprises a multitude of fibers, the general orientation of said fibers being along the tubular member so as to extend between the two opposite ends thereof.
- 4. A method according to claim 3, wherein the cooling in step (e) is performed directionally from the closed end toward the open end of said tubular member.
- 5. A method according to claim 1, wherein step (d) is performed at substantially atmospheric pressure.
- 6. A method according to claim 1, wherein step (d) is performed at least partly at a pressure substantially higher than atmospheric pressure.
Priority Claims (1)
Number |
Date |
Country |
Kind |
55-105654 |
Jul 1980 |
JPX |
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Parent Case Info
This application is a continuation, of application Ser. No. 282,185, filed July 10, 1981, now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (4)
Number |
Date |
Country |
39229 |
Nov 1971 |
JPX |
154374 |
Jan 1963 |
SUX |
443717 |
May 1975 |
SUX |
526445 |
Sep 1976 |
SUX |
Continuations (1)
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Number |
Date |
Country |
Parent |
282185 |
Jul 1981 |
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