KR20150085051A - Method to Manufacture a Crystallizer with Plates for the Continuous Casting of Slabs, and Crystallizer Thus Obtained - Google Patents
Method to Manufacture a Crystallizer with Plates for the Continuous Casting of Slabs, and Crystallizer Thus Obtained Download PDFInfo
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- KR20150085051A KR20150085051A KR1020157015856A KR20157015856A KR20150085051A KR 20150085051 A KR20150085051 A KR 20150085051A KR 1020157015856 A KR1020157015856 A KR 1020157015856A KR 20157015856 A KR20157015856 A KR 20157015856A KR 20150085051 A KR20150085051 A KR 20150085051A
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- Prior art keywords
- mold
- plate
- plates
- molding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/057—Manufacturing or calibrating the moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
A method of manufacturing a crystallization apparatus (10) having a plate for continuous casting of slabs comprises at least a first step of producing two broad walls (11) facing each other to form at least one shaped section (20) . Also, during the first step, the wide wall 11 is obtained in a finished form by a molding operation, and in the molding operation, the mold has a portion 20 having a shape that the wide wall 11 must have, Lt; RTI ID = 0.0 > 16 < / RTI >
Description
The present invention relates to a method of manufacturing a crystallization apparatus having a plate for continuous casting of slabs used in the steel industry for casting thin, medium and thick slabs whose long sides have a much larger rectangular area than the short sides.
A plurality of channels are provided in the play of the crystallization apparatus through which the cooling liquid is passed.
The present invention also relates to a crystallization apparatus obtained by the above method.
There is known a crystallization apparatus having a plate made of copper alloy for casting a continuous casting, in particular a slab, and two broad walls facing each other to define a pipe having a substantially rectangular portion with substantially two narrow side walls Through which molten metal is continuously cast.
Each of the two wide walls includes at least a plate generally formed on the inner surface to define an outer contour or groove in a length that can occupy part or all of the plate in the central portion. In the upper part, these grooves define the extent of an area where, in use, an unloader with the function of placing molten metal inside the crystallization device can be located.
The concave contour is generally made by a chip-removing operation that involves a series of disadvantages.
First, chip-removing operations are expensive in terms of time and equipment used and include obvious economic disadvantages. Also, sometimes it may be necessary to use different equipment depending on the work step.
In addition, the final surface of the concave contour obtained by the chip-removing operation can have surface defects particularly at the connecting curved surface, so that when the contact between the molten metal and the plate is not optimal during casting, And may cause its possible destruction.
In addition, high work costs can be caused by the first piece to be worked, which is dictated by the larger machining allowance for the final product to be obtained. In other words, the disposal of good materials removed during operation is a significant cost.
In general, these disadvantages determine a rather difficult and costly crystallization apparatus and a method of manufacturing a crystallization apparatus that may have surface defects that affect the final quality of metal product casting.
Methods for producing plates for crystallization devices of slabs are known from the documents EP-A-0.564.860, DE-A-10.2006.033316 and EP-A-1.060.815. This method is generally provided to deform a metal body made of copper to a plasticity, to provide a desired shape of a concave contour to the metal body, and to define the groove of the crystallization apparatus. The method described in this document provides that the shaping is carried out by one or more shaping, quenching or pressing operations using a mobile punch or other similar equipment.
However, by the method described in the above document, it is impossible to obtain a concave contour shape which assures proper accuracy or takes into account resistance required for subsequent use. In fact, the area near the concave contour, that is, the area connecting the flat and bent parts, is the most important part of the plate, the part most affected by the wear caused by the swaying of the casting metal. In order to limit wear, the concave contour of the groove should follow the specification geometric parameters as strictly as possible.
It is known that in order to allow the cooling fluid to pass, a plurality of longitudinal pipes must be made over the entire length of the wide wall.
When longitudinal pipes are made from a wide wall thickness, such longitudinal pipes are somewhat complex to make because they have very precise internal surfaces and require long, expensive operations with appropriate equipment.
It is an object of the present invention to complete a method of manufacturing a crystallization apparatus having a plate for continuous casting of slabs, which makes it possible to obtain a plate for a crystallization apparatus satisfying the dimensional and tolerance constraints required by the specification simply and quickly, Thereby increasing the working life of the machine.
Another object of the present invention is to complete a method of manufacturing a crystallization apparatus for continuous casting of slabs which provides a reduced number of steps and reduces the time and cost of the crystallization apparatus.
Another object of the present invention is to produce a crystallization apparatus for continuous casting which has economic, standardized and repeatable characteristics even in the presence of a specific shape.
Another object of the present invention is to reduce as much as possible the volume of copper or alloy used to manufacture the crystallization apparatus, thereby reducing manufacturing costs.
The Applicant has invented, experimented and implemented the present invention to overcome the shortcomings of the current state of the art and to achieve these and other objects and advantages.
The invention is described and characterized in the independent claims, and the dependent claims describe modifications to the other features or concepts of the subject invention.
According to this object, the method according to the present invention, which overcomes the limitations of the state of the art and eliminates existing defects, faces each other and is provided with at least one plate each of which is provided with at least two wide walls ≪ / RTI > is used to produce a crystallization apparatus for continuous casting of slabs.
The crystallization apparatus also includes two narrow walls sandwiched between the ends of the wide walls, which define the entire width of the cast slab.
The present invention comprises at least a first step of making at least one of a wide wall having a portion with at least one shape in surface expansion.
According to one aspect of the present invention, the method comprises at least making a molding apparatus provided with molds and counter-molds, wherein a surface with individual shapes is made. The shaped surfaces together define a molding cavity that minutely divides the overall surface expansion of the at least one plate of the wide wall in shape and size when the mold and counter-mold are in the working position.
The present invention also includes shaping the plate using a mold and an anti-mold to obtain at least one plate in a finished form without a relative movement between the mold and the counter-mold.
In this way, the full surface expansion of the shaped portion and the at least one plate is obtained by deforming the latter into a plasticity and rapidly obtaining the desired shape.
Due to the fact that the surfaces with molds and counter-mold shapes faithfully reproduce the final shape of the plate to be obtained, it is possible to take into account the dimensional and geometrical tolerances of the design specification and, in particular, even at very severe, . As described above, the portion having the shape to partition the volume for insertion of the unloader during use is an important area of the total crystallization apparatus for possible wear phenomena, and the dimensional deviation of such portions can significantly increase wear, Thereby reducing its working life.
In addition, the use of molding techniques entails considerable savings in terms of time, waste of equipment and materials used, taking into account that, unlike known techniques such as chip-removing operations, molding is almost instantaneous and repetitive in the accuracy of the desired shape contour do.
In accordance with the invention, the molding operation also saves in terms of the material used, since it does not produce any waste.
In addition, the step of making a shaped part is simplified, and conversely, if a chip-removing operation is used, it has the potential to produce a different shape of the part with a shape that can be very complex, long and expensive to make.
Advantageously, the molding also does not cause wear, damage or other defects, and therefore the surface of the crystallizing device which is brought into contact with the molten metal does not require any additional work to be used.
This allows for further economic savings in terms of low waste, low operating costs and shorter production times.
According to some possible forms of embodiment, two adjacent and overlapping plates during molding are simultaneously molded in a forming apparatus to form one of the wide walls, thereby defining the inner surface and the outer surface of the wide wall. In addition, during the production of the molding apparatus, the surfaces of the individual shapes may be provided in molds and counter-molds that coincide with the overall surface expansion of the inner and outer surfaces.
One possible form of embodiment provides that the method includes connecting two plates to partition at least one of the wide walls together.
The present invention also relates to a molding apparatus for producing a crystallization apparatus having a plate for continuous casting, comprising at least a mold and an opposing mold, each of which has a surface with an individual shape, When in the operative molding position, the molding cavity is defined together. The molding cavity divides the overall surface expansion of the at least one plate of the wide wall in shape and size in a negative direction.
Are included in the scope of the present invention.
These and other features of the present invention will become apparent from the following description of one form of embodiment provided as a non-limiting example with reference to the accompanying drawings.
1 is a sectional view of an embodiment of the first form of the crystallization apparatus produced according to the present invention.
Fig. 2 is a part of Fig.
Figure 3 is an enlarged view of portion A of Figure 2;
4A is a cross-sectional view of an embodiment of the second form of the crystallization apparatus of FIG.
Figure 4b is a variation of Figure 4a.
Figure 5 is a variation of Figure 4a.
Fig. 6A is an enlarged view of Fig. 5 according to the first modification. Fig.
Fig. 6B is a modification of Fig. 6A.
6C is a modification of Figs. 6A and 6B.
Figures 7 and 8 are schematic views of a first production stage of a portion of the components of Figures 2, 4 and 5;
Figure 9 is a schematic view of a second production step of the components of Figures 4A, 4B and 5;
10 is a modification of Fig.
To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements in the figures. The elements and features of one form of embodiment may conveniently be included in other forms of embodiment without further description.
Referring to FIG. 1, a crystallization apparatus having a plate for continuous casting of slabs according to the present invention is indicated by
The
The
The two
In the embodiment of Figures 1 and 2, each of the
The
The
Generally, the portion of the unloader located between the two
In this case, the
According to the embodiment of the first form shown in Figures 1, 2 and 3, the
This type of embodiment is particularly advantageous because the
The
Some embodiments provide that the connecting
By way of example only, the braze material may be selected from the group comprising alloys based on tin, lead, copper, silver, zinc or combinations thereof.
Although it should be mentioned in the solution provided below to use the braze material, in other embodiments, the connection between the
Some embodiments are embodiments wherein the connecting
At least one of the first
By way of example only, the
The cooling liquid results in uniform cooling of the entire cross-section of the
The interface area between the
In particular, in the embodiment of Figures 1, 2, 3, 4b and 6c,
According to the variant shown in Figures 4a, 5, 6a and 6b, a
As a mere example that does not limit the invention, it has a width of 5 mm to 12 mm and a depth of 10 mm to 15 mm in the case of a
Another type of embodiment not shown in the figures is provided to make
For example, in an embodiment of the first aspect as shown in Figures 1, 2 and 3, the
For example, in another embodiment of the embodiment shown in Figures 4A, 4B and 5, the
By way of example only, without limiting the invention, with reference to the embodiment of Figs. 4a and 4b, the plate in which the
4a and 4b, the
The
In some forms of embodiment (Figures 5,6a, 6b and 6c), a
Some embodiments provide for the formation of a plurality of V-shaped
In particular, in the embodiment of Figures 6a and 6b, the
The longitudinal V-shaped
In another embodiment of the invention, the
The interaction between the longitudinal V-shaped
In this case, the longitudinal V-shaped
In accordance with the variant, the transverse V-shaped
According to another variant, each
In some forms of embodiment (FIG. 3), seatings 40 are made in the case of a
The method of manufacturing the
In particular, a
When the
The
The
In this way, the recessed
In addition, due to the fact that the shaped
The second plate 15 (Figs. 4A, 4B, 5, 6A, 6B, 6C) is formed by molding in a dedicated mold and a counter-mold like the
If both the
In particular, in the form of an embodiment that provides mechanical association of the first and
Conversely, in the form of an embodiment using a connecting
Some forms of embodiment provide that the molding operation is performed cold.
In another embodiment, the molding is carried out hot.
The method also includes making
The
Another embodiment of the method of the present invention also provides for making a longitudinal V-shaped
The method then includes connecting the
The first alternative is to insert the
If a
A second alternative is provided for joining the
If the connecting
In this case, in fact, after the brazing material is applied, the
In another form of embodiment, the
Depending on the variant, at least one of the
In particular, the
In this manner, the sizes of the
Subsequent steps provide possible work such as making V-shaped nicks, holes, and seats for keys and / or tongues.
According to the present invention, taking into account that the molding operation is momentary compared to the chip-removing operation, the molding operation carried out by at least the
Also, because of the limited amount of material used by the equipment used and the chip-removal, a reduction in manufacturing costs is advantageously obtained.
Advantageously, in each case a first
The deformation and / or addition of the component
It will be apparent that the invention can be practiced with respect to the above-described methods and crystallization apparatus without departing from the scope and scope of the invention.
For example, as shown in Fig. 1, the
In this case, longitudinal grooves on at least one of the
Further, in the same manner as described above for the
Although the present invention has been described with reference to certain specific embodiments, it will be apparent to those skilled in the art that many other identical forms of methods and crystallization devices having the features described in the claims and all falling within the scope of protection defined by the present invention Do.
Claims (16)
As the step of making the molding apparatus 30 provided with the mold 28 and the counter-mold 29, surfaces 42 and 43 with individual shapes are formed in the mold 28 and the counter-mold 29, When the mold (28) and the counter-mold (29) are in a working position, together define a molding cavity (44) , 15) are minus in shape and size;
Mold 28 and opposite mold 29 to obtain at least the plate 14,15 in a finished form without relative movement between the mold 28 and the opposite mold 29. [ And forming the plates (14, 15).
At least one adjacent two overlapping plates (14, 15) of said wide wall (11) to define an inner surface (16) and an outer surface (19) of said wide wall (11) (30), characterized in that during the forming of the molding device (30), each of the inner surface (16) and the outer surface (19) (42, 43) into the mold (28) and the counter-mold (29).
Connecting said two plates (14, 15) by threaded connecting means (24) or other suitable mechanical means.
Characterized in that it comprises intimately and permanently connecting said two plates (14, 15) by a connecting material (34).
Wherein the step of connecting the two plates (14, 15) provides soldering or bonding by brazing and an adhesive material.
The step of connecting the two plates (14, 15) comprises interposing a brazing material therebetween, simultaneously heating the plates (14, 15) at a temperature required by the brazing material, ≪ / RTI > is provided to contact under pressure to form an intimate and permanent connection.
Characterized in that heating and contacting under pressure the two plates (14, 15) is carried out in the molding apparatus (30) during molding of the plates (14, 15).
Comprising the steps of: providing a plurality of channels (22) in said wide wall (11) that are capable of allowing passage of cooling fluid.
The step of producing the channel (22) is provided for making a plurality of longitudinal grooves (21) in at least one of the two plates (14, 15), the longitudinal grooves (21) Characterized in that it is adapted to be sealed by another of the two plates (15, 14) so as to define the channel (22) for the passage of the cooling fluid.
Characterized in that at least one drainage channel (36) is made through at least the further outside of the plates (14, 15) to discharge the cooling fluid leaking from between the two plates (14, 15).
Characterized in that a plurality of V-shaped engravings (23, 25) configured to compensate for thermal expansion are made on at least one of the two plates (14, 15).
Characterized in that the part (20) having the shape has a concave contour which at least coincides with the central part of the surface, which is, in use, inside the wide wall (11).
At least one of the mold 28 or the counter-mold 29 is modular and comprises a first mold part 32a centrally located and formed to coincide with the part 20 having the shape of the wide wall 11, And a second mold part (32b) laterally joined to the first mold part (32a) to define the entire mold (28) and the opposite mold (29).
Characterized in that at least one of the mold (28) or the counter-mold (29) comprises a plurality of heating elements (31).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUD2012A000194 | 2012-11-16 | ||
IT000194A ITUD20120194A1 (en) | 2012-11-16 | 2012-11-16 | METHOD FOR THE REALIZATION OF A PLASTIC CRYSTALLIZER FOR CONTINUOUS BRAMME CASTING, AND CRYSTALLIZER SO IT HAS OBTAINED |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020177017077A Division KR101862707B1 (en) | 2012-11-16 | 2013-11-15 | Method to Manufacture a Crystallizer with Plates for the Continuous Casting of Slabs |
Publications (1)
Publication Number | Publication Date |
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KR20150085051A true KR20150085051A (en) | 2015-07-22 |
Family
ID=47522862
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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KR1020177017077A KR101862707B1 (en) | 2012-11-16 | 2013-11-15 | Method to Manufacture a Crystallizer with Plates for the Continuous Casting of Slabs |
KR1020157015856A KR20150085051A (en) | 2012-11-16 | 2013-11-15 | Method to Manufacture a Crystallizer with Plates for the Continuous Casting of Slabs, and Crystallizer Thus Obtained |
Family Applications Before (1)
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KR1020177017077A KR101862707B1 (en) | 2012-11-16 | 2013-11-15 | Method to Manufacture a Crystallizer with Plates for the Continuous Casting of Slabs |
Country Status (5)
Country | Link |
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EP (1) | EP2919930B1 (en) |
KR (2) | KR101862707B1 (en) |
CN (1) | CN104968453B (en) |
IT (1) | ITUD20120194A1 (en) |
WO (1) | WO2014076553A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109332611A (en) * | 2018-11-21 | 2019-02-15 | 南阳汉冶特钢有限公司 | A kind of water-cooled steel ingot mould |
CN115815545A (en) * | 2022-10-27 | 2023-03-21 | 东北大学 | Convex cambered surface continuous casting crystallizer narrow-surface copper plate and using method thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4233522A1 (en) * | 1992-04-04 | 1993-10-07 | Schloemann Siemag Ag | Process for producing a wide mold side wall for a thin slab caster |
ATE195449T1 (en) * | 1994-06-06 | 2000-09-15 | Danieli Off Mecc | METHOD FOR CONTROLLING THE DEFORMATION OF SIDE WALLS OF A MOLD AND CONTINUOUS CASTING MOLD |
CN1056106C (en) * | 1995-06-19 | 2000-09-06 | 冶金工业部钢铁研究总院 | Mould for continuous casting thin sheet bloom |
DE19927348A1 (en) * | 1999-06-16 | 2000-12-21 | Sms Demag Ag | Method for producing forged broad side walls of a continuous casting mold |
CN2885458Y (en) * | 2006-03-17 | 2007-04-04 | 钢铁研究总院 | Crystallizer copper plate for sheet blank continuous casting |
DE102006033316A1 (en) * | 2006-07-17 | 2008-01-24 | Kme Germany Ag | Making continuous casting mold, bends copper plate of given wall thickness to required geometry, whilst maintaining wall thickness |
-
2012
- 2012-11-16 IT IT000194A patent/ITUD20120194A1/en unknown
-
2013
- 2013-11-15 CN CN201380070707.3A patent/CN104968453B/en active Active
- 2013-11-15 KR KR1020177017077A patent/KR101862707B1/en active IP Right Grant
- 2013-11-15 WO PCT/IB2013/002561 patent/WO2014076553A2/en active Application Filing
- 2013-11-15 KR KR1020157015856A patent/KR20150085051A/en active Application Filing
- 2013-11-15 EP EP13820860.8A patent/EP2919930B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN104968453B (en) | 2017-08-29 |
WO2014076553A3 (en) | 2014-07-24 |
EP2919930A2 (en) | 2015-09-23 |
KR20170076789A (en) | 2017-07-04 |
WO2014076553A2 (en) | 2014-05-22 |
KR101862707B1 (en) | 2018-07-04 |
ITUD20120194A1 (en) | 2014-05-17 |
EP2919930B1 (en) | 2018-09-26 |
CN104968453A (en) | 2015-10-07 |
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