close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3096559

код для вставки
July 9, 1963
M
J. SCHUTTEVAER
3,096,549
MARKING 0F‘ INGOTS
Filed Jan. 25, 1960
2 sheets_sheet 1
INVENTOR
JuRRumus SCHUTTE'VAERI
BY
v
ATTORNEY
July 9, 1963
J. scHuTTEvAER
3,096,549
MARKING OF INGOTS
2 Sheets-Sheet 2
Filed Jan. 25, 1960
INVENTOR
Jummnus ScHL/TTEVAER,
BY
ATTORNEY
3,096,549
United States Patent 0 "ice
Patented July 9, 1963
2
1
FIGURE 2 is an end elevation of the ingot according
to FIGURE 1.
3,096,549
Jurrianus Schuttevaér, Heemstede, Netherlands, assignor
MARKING 0F INGOTS
FIGURE 3 is a side elevation of an ingot like that
according to FIGURE 1, but with its shape modi?ed
to Koninklijke Nederlandsche Hoogovens En Staal
fabrieken N.V., Ijmuiden, Netherlands, a corporation
according to the invention.
FIGURE 4 shows another modi?cation of the shape of
of the Netherlands
the ingot.
Filed Jan. 25, 1960, Ser. No. 4,489
FIGURE 5 shows a modi?ed shape of the normal ingot
according to FIGURE 1.
FIGURES 6 ‘and 7 are end elevations of ingots of a
This invention relates to a method and apparatus for 10
10 Claims. (Cl. 22-200)
shape modi?ed according to the invention.
marking ingots produced on a large scale in equal and
FIGURE 8 is a cross-section of a mould or casting
simple regular shapes in open moulds in particular ingots
trough in a conveyor belt for moulding ingots according to
cast on a pig iron casting machine.
FIGURE 3 or 4.
Ingots of di?erent grades, e.g. of different kinds of pig
iron, are frequently cast in the‘same moulds. In order to 15
make it possible for the equally shaped ingots. to be dis
tinguis-hed as to grade they have to be marked, because
otherwise mistakes tend to be made and the ingots de
livered do not satisfy the grade requirements or are of
di?erent grades.
V20
‘
FIGURE 9 shows diagrammatically the general set-up
of the conveyor belt casting machine.
The pig iron ingot according to FIGURES l and 2 is the
normal “pig” or “brick” in the shape in which pig iron
is normally delivered. It has an approximately triangular
crossqsection and an approximately trapezoidal longi
tudinal section. The numeral 1 denotes some casting
‘It has already been proposed to mark the ingots with a
mark, which has been provided asymmetrically in the
colouring agent during or immediately after the casting
ingot.
process. Apart from the difliculty involved in marking
The ingot according to FIGURE 5 also has a normal
the hot product with a colouring ‘agent, it is ‘found in
practice that this colour tends to be lost during transport 25 shape. Here the casting mark has been replaced by a
notch 2, which is also situated asymmetrically and is
or storage.
simply formed by means of a ridge made in the mould.
It has therefore been proposed (see the published
If the mould is slanted in the longitudinal direction dur
German patent application No. 1,006,591) to designate
ing casting, ingots of the shape according to FIGURES
the grade by means of characteristics of shape. With the
known method here deferred to notches are spouted or 30 3 or 4 are produced. They are distinguished by the fact
that the casting marks 1 are present in the thinnest or in the
sprayed in the ‘ingot with the aid of a jet of water at
thickest part of the ingot, only dependent on the sense
in
which the mould has been slanted.
ever, it is rather di?icult to determine this moment, so
It has been found that the shapes of the ingots according
that the jet of water tends to be directed at the ingot either
too early or too late, in consequence of which not notch 35 to FIGURES l, 2, and 3 are easily distinguished by sight,
even if the mould is slanted only slightly. A slant of
is produced in the ingot.
.
1:20 is as a rule sufficient.
The invention proposes a method ‘for marking ingots
the moment when the ingot is in plastic condition. How
which operates in a more reliable manner and nevertheless
The mould may also be slanted in the transverse direc
tion. In that case ingots having the shapes according to
is very simple in its application and creates easily recog—
FIGURES 6 and 7 are produced. The form of the isos
nizable and permanent characteristics, which are of the
celes triangle according to FIGURE 2 is then deformed to
nature of characteristics of shape.
an olique triangle, the casting mark v1 being present either
According to the invention the moulds are slightly
on the shortest or on the longest side of the triangle.
slanted in relation to their horizontal main surface during
These shapes of ingot are also easily distinguished by
solidi?cation, in such a way that the free casting surface of
the ingots slopes a little as compared with the free casting 45 sight. However, it is to be noted that if a casting mark
like 2 according to FIGURE 5 is used, the difference ac
surface that would have been obtained in the normal
cording to FIGURES 6 and 7 gives no additional distinc
tion. [In that case the only difference is that between the
in the horizontal plane, the mould could be slanted about 50 normal cross-section according to FIGURES v6 and 7.
Only two grades can then be distinguished.
one axis or about the other, while it is also possible to use
However, if the casting mark .1 is present in a side wall,
a combination of the two directions of slant. In each of
as shown in FIGURES l2, 6 and 7 three shapes and ac
these cases the slant can easily be achieved. The track ‘for
casting process.
If in the mould two main axes are to be distinguished
cordingly three grades can be distinguished.
With shapes according to FIGURES 1, 3 and 4 three
55 grades can also be distinguished.
range or one or on both sides of this series in order to
the uninterrupted series of moulds, or the support thereof
need only be raised at least relatively in the solidi?cation
obtain the desired slant.
I-f moreover a ?xed casting mark situated outside the
centre is provided in the mould, it is easy to distinguish
a number of grades. If the thickness of the ingot varies
If the longitudinal and the transverse slant are com
bined, it is possible to obtain a maximum of 9 different
shapes and accordingly to distinguish 9 grades.
For
practical purposes this number will in general be too
only in the longitudinal direction, in combination with 60 large, so that as a rule the application of the invention
will be con?ned to either the longitudinal or the trans
the casting mark three grades can be marked, namely:
verse slant.
(1) The casting mark and the thickest end of the ingot
The mould or casting channel 3 is shown in FIGURE
8. -It is supported by means of trunnions 4, ‘5 in the links
65 6, 7 of a conveyor chain, which links are supported by
are on opposite sides of the centre of the ingot.
stationary rollers ‘8, 9. The only thing needed is to raise
(3) The ingot is “normal,” without any thick or thin
are on the same side from the centre of the ingot.
(.2) The casting mark and the thickest end of the ingot
end, and is only provided with the casting mark.
The invention will now be explained in greater detail
with reference to the drawing, giving preferred embodi
70
ments of the ingots according to the invention.
FIGURE 1 is a side elevation of the normal pig iron
ingot, cast on a conveyor belt casting machine.
the ?xed supports of one of the roller systems 8 or 9 lo
cally, as is shown in FIGURE 8, in order to obtain the
slant according to FIGURES 3 or 4.
If it is desired to achieve the slant according to FIG
URE 6 or 7 (either with or without the slant shown in
FIGURE '8), the moulds 3 have to be placed in the
3,096,549
4
chain with a transverse slant, which can be achieved with
the aid of the support in the trunnions 4 or 5 or by means
of a longitudinal slant of the whole chain, so that the
moulds will also take a slanting position in space.
molds are retained in a normal position; cooling each of
the ingots in the molds in substantially the same manner
FIGURE 9 shows diagrammatically the path of the
conveyor chain 10 of the casting machine. This already
each mold in one of a plurality of selectively inclined
duce ingots of predetermined con?guration when the
to solidify same, and during solidi?cation, maintaining
positions with respect to its normal position in dependence
upon the grade of the ingot therein such that ingots of
different con?guration are formed, each position corre
the range 1-1. If ony one of the two conveyor chains
sponding to a different ‘grade to produce ingots which
is forced upwards over this range 11, the shapes accord 10 deviate from the predetermined con?guration in accord
ing to FIGURES 4 and 3 are produced. If they are
ance with their grade; and segregating the grades of ingots
forced upwards until the slope of the conveyor chain
according to their con?guration.
becomes so high that the moulds 3 begin to slope in the
4. A method as de?ned in claim 2 wherein the molds
transverse direction, the effect according to FIGURES
are symmetrical and the ingots deviate by being asym
6 and 7 is produced. If in this case both conveyor chains
metrical.
are forced upwards, the shapes produced are exclusively
5. A method of mass producing ingots with identifying
has a slope under normal circumstances. In the support
ing run the conveyor chain is now forced upwards over
those according to FIGURE 1 with cross-sections ac
cording to FIGURES 6 and 7. If in this case only one
of the conveyor chains is forced upwards, the shapes
con?gurations comprising the steps of: casting ingots in
open molds, each mold having a portion ‘for providing an
asymmetrically disposed projection on the ingot to de?ne
produced are those according to FIGURES 3 or 4 in 20 a casting mark, said mold having a molding surface con
combination with the cross-sections according to FIG
?guration which is symmetrical with respect to a vertical
URES 6 or 7.
plane exclusive of said portion; uniformly cooling each of
The slant or slope in the several cases is preferably
said molds While maintaining the molds inclined into one
between 5° and 15°.
of a number of positions with respect to their normal
What I claim is:
25 position to produce ingots of different con?gurations which
1. A method of mass producing ingots with identifying
are asymmetrical exclusive of the projections, each in
clined position being representative of a different grade
identical open molds designed to produce an ingot of a
of ingot; and sorting the completed ingots into grades in
predetermined con?guration when the molds are retained
dependence upon their con?gurations.
in a normal position; cooling each of the ingots in the 30
6. The method of claim 5, wherein said molding sur
molds in substantially the same manner; during cooling,
face has the shape of an oblong channel, each mold being
inclining the molds with respect to their normal position
tilted in the direction of the length of the channel.
into one of a number of positions each corresponding to
7. The method of claim 5, wherein the said molding
different ingot characteristics to produce ingots of dif
surface has the shape of an oblong channel, each mold
ferent con?gurations; and, after cooling, segregating the 35 being tilted in the direction of the width of said channel.
ingots according to their different characteristics in de
8. The method of claim 5, wherein said molding sur
pendence upon the con?gurations thereof.
face has the shape of an oblong channel, the transverse
2. A method of mass producing ingots of different
cross section of which is an isosceles triangle with its ver
grades which are identi?able according to their different
tex at the bottom, and wherein said plane bisects said
con?gurations, comprising the steps of :
40 vertex.
(a) casting ingots of different grades in identical open
9. The method of claim 5, each mold being tilted to
molds designed to produce ingots of predetermined
an angle of from 5 degrees to ‘15 degrees from the vertical.
con?gurations comprising the steps of: casting ingots in
con?guration when the molds are retained in a nor
mal position;
(b) cooling each of the ingots in the molds in sub
stantially the same manner;
10. The method of claim 5, wherein said molds are
arranged in a continuous, endless, uninterrupted series
supported on a track, each mold being tilted by changing
the height of the track at one side of the series.
(c) during cooling, selectively inclining each mold
into one of a plurality of positions with respect to
its normal position in dependence upon the grade of
the ingot therein, each position corresponding to a
different grade to produce ingots which deviate from
the predetermined con?guration in accordance with
their grade; and
(d) after cooling, segregating the ingots according to
grade in dependence upon the con?gurations thereof.
3. A method of mass producing ingots of different
grades which are identi?able according to their different
con?gurations, comprising the steps of: casting ingots of
different grades in identical open molds designed to pro
References Cited in the ?le of this patent
UNITED STATES PATENTS
932,047
Mohr et al ____________ __ Aug. 24, 1909
1,745,475
2,474,428
2,679,080
Coburn _______________ __ Feb. 4, 1930
Kindt _______________ __ June 28, 1949
Olsen ________________ __ May 25, 1954
OTHER REFERENCES
Gates and Risers for Castings, Pat Dwyer, Penton Pub
lishing Co., Cleveland, Ohio, 1942, copy in Div. 3, pages
181-182 relied upon,
Документ
Категория
Без категории
Просмотров
0
Размер файла
381 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа