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Патент USA US2116274

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Patented May 3, 1938
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' UNITED STATESPATENT OFFICE
ALUMINIUM ALLoY.
Yonosuke -Matuenaga, Naka-ku, Yokohama,
Japan
.No Drawing. Original application May 8, 1936,
Serial No. 78,723. Divided and this. appli
cation November 12, 1936, Serial No. 110,553.
In Japan May 13, 1935
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1 Claim._ '(Gl. 75-146)
This application is a divisional from appliIt is acknowledged from repeated experiments
cant’s copending application Serial No. 78,723, that addition of a few percentage'of cobalt; mo
?led May 3, 1936,
-lybdenum, vanadium, tungsten, titanium, lithium.~
This invention relates to an.aluminium alloy or beryllium does not appreciably modify the
5 containing main and auxiliary elements, the properties of the alloy so that alloys containing 5
main elements consisting of 2 to 5% magnesium, vone or more of the above elements are considered
6 to ‘14% -zinc,_ 0.2 to 2.0% nickel, 0.01 to 1.5% equivalent'alloys to each Other'. _
iron, 0.1 to 1.0% silicon‘ and the rest substantially
As m be Seen from the above example, the new
aluminium keeping the condition that the con- alloy has a vefy great tensile strength. and a’ VeFY
10 tent of silicon is always greater than that of iron, \ great 910113519?“ which are hardly obtainable m '10
while the ‘auxiliary elements consisting of a metal known alumlmum apoys‘
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selected from the group of 0.1 to 1.5% manAs to m‘itqal actlon of “:6 elements of the
ganese, a few percentage of cobalt, molybdenum,
vanadium, tungsten, titanium lithium and beryl~
15 lium The object of the invention is to obtain an
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new auPy' It ‘5 supposefd as follow?‘ A part‘ of
magnesium DER-W- combme wlth smegm- to form
magnesmm slhclde’ and another part of mag
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nesium may be alloyed with a part of zinc and '
alumimum alloy whlch- has a gr?” tenslle.
Strength and great elongation especially when
subjected under heat treatment
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nickel may be alloyed with iron. These chemical
Example of the alloy Showing Percentages of
the elements employed and also tensile strength
and elongation when the, alloys are subjected
under a mode of tempering~and annealing is
given as follows:
compounds and alloys may crystal out in the
main element, viz., aluminium and may be uni
formly distributed therein. Further, when man
ganeseis employed, this manganese not only acts
as reducing agent, but also hinders the growth
of particles of vzinc-manganese-aluminiun:i alloys
2‘ ‘Example """""""""""" "7-- I%
MI‘!
Z11
Ni
- Fe
30 Si
Mn ,
A1
85
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-
..____
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v
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_____
____
>
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a part of aluminium to form various three ele
mental alloys of di?erent percentage. Further
11%
2.5
2.5
9.0
9.0
and also of nickel-iron alloy so that the dis- 25
‘tribution of the alloy may be promoted.
,
whatiI'claim
0.5
1.0
0.2
0.2
0.6
0.6
0.8
0.8
Rest Rest
Tensile strength l:g./cm.2 __________ __ 58.5
Elonzatlon % ________ __' ___________ __ 15
60.3
12
is:-—l
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An aluminium alloy containing 2 to 5% mag
nesium, 6 to 14% zinc, 0.2 to 2% nickel,i0.0l to
1.5% iron, .1 to 1% silicon, the silicon content
being always greater than the iron content, .1 to
1.5% manganese and the rest aluminium.
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YONOSUKE MATUENAGA.
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35
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