Alloys or metallic compositions – Aluminum base
Reexamination Certificate
2006-10-24
2006-10-24
Wyszomierski, George (Department: 1742)
Alloys or metallic compositions
Aluminum base
C148S550000, C148S552000, C164S457000
Reexamination Certificate
active
07125515
ABSTRACT:
A aluminum base alloy containing boron and manufacturing method thereof, said alloy exhibiting good mechanical properties (such as high-temperature strength and creep strength) over a long period of time and also having a neutron absorbing capacity owing to boron present therein in the form of a compound without segregation. The alloy contains 0.5–10 mass % of boron with an isotopic element satisfying a relation of10B/(10B +11B)≦30%. said boron being present in the form of a boron compound which is 300 μm or below in size. The alloy is obtained by melting at a temperature in excess of 950° C. and cast at a temperature in the range of 800° C. to 950° C., in such a way that the molten metal is kept for 60–180° seconds until it cools from 950° C. to the casting temperature.
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Aruga Yasuhiro
Kajihara Katsura
Sugizaki Yasuaki
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd).
Morillo Janelle
Wyszomierski George
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