CN210098905U - Narrow-face crystallizer copper plate and continuous casting crystallizer - Google Patents

Abstract

The utility model provides a leptoprosopy crystallizer copper and continuous casting crystallizer relates to the continuous casting crystallizer field. The narrow-face crystallizer copper plate comprises a plate body and a strengthening layer attached to the surface of the plate body, wherein the thickness of the strengthening layer of the middle working face of the narrow-face crystallizer copper plate is gradually increased along the direction from the upper end face to the lower end face, the thickness of the strengthening layer of the side working face is gradually reduced along the direction from the side working face to the middle working face, and the minimum thickness of the strengthening layer of the side working face is larger than or equal to that of the strengthening layer of the middle working face. The lower part and the two sides of the lower part of the narrow-face crystallizer copper plate can be obviously thickened through the design, so that the wear rule of the narrow-face crystallizer copper plate is more matched, the cost of a continuous casting steel mill is favorably reduced, the shutdown times are reduced, the overhaul and installation time of loading and unloading is reduced, and the economic benefit is more considerable.

Description

Narrow-face crystallizer copper plate and continuous casting crystallizer

Technical Field

The utility model relates to a continuous casting crystallizer field particularly, provides a leptoprosopy crystallizer copper and continuous casting crystallizer.

Background

The continuous casting crystallizer is generally a rectangular structure formed by a front wide-face crystallizer and a rear wide-face crystallizer and a left narrow-face crystallizer and a right narrow-face crystallizer, the upper end face of the crystallizer is called an upper opening, the lower end face of the crystallizer is called a lower opening, a continuous casting crystallizer copper plate is required to have higher steel passing amount besides higher heat conductivity, namely, higher service life is required, the service life of the copper plate, particularly the service life of the narrow-face copper plate, is related to the type of a reinforcing layer or a coating and the design structure of the reinforcing layer, usually, the lower line of the crystallizer copper plate is related to copper leakage of the reinforcing layer copper plate, and the copper leakage means the lower line.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leptoprosopy crystallizer copper, its thickness through design strengthening layer realizes prolonging leptoprosopy crystallizer copper's life.

Another object of the present invention is to provide a continuous casting mold, which has a long service life.

The utility model discloses an adopt following technical scheme to realize:

the embodiment of the utility model provides a narrow face crystallizer copper plate, it includes the plate body and adheres to the strengthening layer on the plate body surface, and narrow face crystallizer copper plate divides the working face between the up end to the lower terminal surface into the first working face that is close to the up end and the second working face that is close to the lower terminal surface through the boundary line that predetermines, and the second working face includes middle working face and the lateral part working face that is located middle working face both sides; the thickness of the strengthening layer of the middle working face is gradually increased along the direction from the upper end face to the lower end face, the thickness of the strengthening layer of the side working face is gradually reduced along the direction from the side working face to the middle working face, and the minimum thickness of the strengthening layer of the side working face is larger than or equal to that of the strengthening layer of the middle working face.

Optionally, in other embodiments of the present application, the position of the boundary line is 200mm to 300mm from the upper end surface.

Optionally, in other embodiments of the present application, the side working surfaces are located in the area with the width of 20-30 mm on both sides of the second working surface.

Optionally, in another embodiment of the present application, the side working surface is a rectangular area or a triangular area with a width of 20-30 mm of the lower end surface.

Optionally, in other embodiments of the present application, the thickness of the reinforcing layer of the intermediate working surface gradually changes from 0.2-0.5 mm to 1.2-2.0 mm along the direction from the upper end surface to the lower end surface.

Optionally, in other embodiments of the present application, the thickness of the reinforcing layer of the side working surface is changed from 2.5-3.5 mm to 1.2-2.0 mm along the direction from the side working surface to the middle working surface.

Optionally, in another embodiment of the present application, the thickness of the reinforcing layer of the first working surface gradually increases along a direction from the upper end surface to the lower end surface, or the thickness of the reinforcing layer of the first working surface is equal to the thickness of the reinforcing layer; the thickness of the maximum strengthening layer of the first working surface is not more than the thickness of the minimum strengthening layer of the middle working surface.

Optionally, in another embodiment of the present application, the thickness of the reinforcement layer on the first working surface is 0.2-0.3 mm.

Alternatively, in other embodiments of the present application, the thickness of the reinforcing layer of the side face gradually increases in a direction from the upper end face to the lower end face.

The embodiment of the utility model provides a continuous casting crystallizer is still provided, it includes foretell narrow face crystallizer copper.

The utility model discloses beneficial effect includes:

the embodiment of the utility model provides a leptoprosopy crystallizer copper divides through each region to leptoprosopy crystallizer copper to the design of strengthening layer thickness to middle working face is for the direction grow gradually along up end to lower terminal surface, and the design of strengthening layer thickness of lateral part working face reduces gradually for the direction along lateral part working face to middle working face. Through the design, the lower part of the narrow-face crystallizer copper plate and the two sides of the lower part can be obviously thickened, especially, the thicknesses of the working surfaces at the lateral parts of the two sides are obviously larger than that of the middle working surface, so that the narrow-face crystallizer copper plate is more suitable for the abrasion rule, the cost of a continuous casting steel mill is favorably reduced, the shutdown times are reduced, the overhauling and installing time of the upper machine and the lower machine is reduced, and the economic benefit is more considerable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a bottom view of a narrow-faced mold copper plate provided in embodiment 1 of the present invention;

fig. 2 is a front view of a narrow-faced mold copper plate provided in embodiment 1 of the present invention;

fig. 3 is a left side view of a narrow-faced mold copper plate provided in embodiment 1 of the present invention;

fig. 4 is a front view of a narrow-faced mold copper plate provided in embodiment 4 of the present invention;

fig. 5 is a left side view of a narrow-faced mold copper plate provided in embodiment 4 of the present invention;

fig. 6 is a front view of a narrow-faced mold copper plate provided in embodiment 5 of the present invention;

fig. 7 is a left side view of the narrow-faced mold copper plate provided in embodiment 5 of the present invention.

Icon: 100-narrow-face crystallizer copper plate; 110-a plate body; 111-the dividing line; 112-a first working surface; 113-a second working surface; 114-intermediate work surface; 115-side working face; 116-upper end face; 117-lower end face; 120-a strengthening layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, an embodiment of the present invention provides a narrow-sided mold copper plate 100, which includes a plate body 110 and a strengthening layer 120 attached to a surface of the plate body 110, wherein the strengthening layer 120 may be attached to the surface of the plate body 110 by electroplating, electroforming, spraying, chemical plating, or laser processing.

In the prior art, strengthening layers with different thicknesses are formed on the surface of a rectangular plate-shaped copper plate according to the different thicknesses of the strengthening layers, but the change of the thickness of a preset strengthening layer is difficult to realize in the prior art. In this embodiment, by presetting the thickness of the reinforcing layer 120, the shape of the working surface of the board body 110 changes with the change of the thickness of the reinforcing layer 120, so that the surface of the reinforcing layer 120 is a plane, and the shape of the lower surface of the board body 110 is not limited in this application, and may be a plane or other shapes. The adhesion strengthening layer 120 can be conveniently formed by presetting the plate body 110 with different thicknesses in different areas, and the adhesion strengthening layer can be formed by adopting conventional technologies such as electroplating, electroforming, spraying, chemical plating or laser processing.

Specifically, referring to fig. 2 and 3, the narrow-faced mold copper plate 100 divides the working surface from the upper end surface 116 to the lower end surface 117 into a first working surface 112 near the upper end surface 116 and a second working surface 113 near the lower end surface 117 by a predetermined dividing line 111, the second working surface 113 includes a middle working surface 114 and side working surfaces 115 located at two sides of the middle working surface 114, and the dividing line 111 is located at a distance of 200mm and 300mm from the upper end surface 116. In other embodiments of the present application, the boundary line 111 may be located a distance from the upper end surface 116 of, for example, any one or a range of values between 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, and 300 mm. The side working surfaces 115 are located in the regions having a width of 20-30 mm on both sides of the second working surface 113. The side working surface 115 may be a rectangular area (see fig. 2 or fig. 4) or a triangular area (see fig. 6) with a width of 20-30 mm at the lower end surface 117, when the side working surface 115 is the triangular area, the cross section thereof is a right-angled triangle, the right-angled side is the right-angled side of the plate body 110, and the width of the side working surface 115 gradually increases along the direction from the upper end surface 116 to the lower end surface 117. In other embodiments of the present application, the side working surface 115 may be located in an area between the range values of either or both of the widths of 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30mm on both sides of the second working surface 113.

In the application, the narrow-face crystallizer copper plate 100 is divided into three regions, and the thicknesses of the three regions (the first working face 112, the middle working face 114 and the side working face 115) are respectively limited, so that the corresponding strengthening layer 120 can form a preset thickness in one-time integral plating, and the region is not required to be processed for multiple times. The thicknesses of the coatings of the first working surface 112, the middle working surface 114 and the side working surfaces 115 are specifically designed as follows:

the thickness of the reinforcing layer 120 of the first working surface 112 gradually increases along the direction from the upper end surface 116 to the lower end surface 117, or the thickness of the reinforcing layer 120 of the first working surface 112 is equal; the maximum strengthening layer 120 thickness of the first working surface 112 is not greater than the minimum strengthening layer 120 thickness of the intermediate working surface 114. The thickness of the strengthening layer 120 of the first work surface 112 is 0.2-0.3 mm. The first working surface 112 is located at the upper part of the narrow-face mold copper plate 100, and contacts liquid molten steel in a molten state which is not solidified yet, or a solidified thin blank shell with low hardness, and under such an environment, the coating layer on the upper part of the copper plate or the copper pipe is required to have good heat conductivity, so that the thickness of the strengthening layer 120 of the first working surface 112 is as thin as 0.2-0.3 mm in the present application.

The thickness of the reinforcing layer 120 of the intermediate working surface 114 gradually increases in a direction from the upper end surface 116 to the lower end surface 117, and in particular gradually transitions from 0.2-0.5 mm (which may be, for example, any one or a range of values between 0.2, 0.3, 0.4, and 0.5 mm) to 1.2-2.0 mm (which may be, for example, any one or a range of values between 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, and 2.0 mm). Correspondingly, the shape of the portion of the upper surface of the plate body 110 corresponding to the intermediate working surface 114 gradually changes along the direction from the upper end surface 116 to the lower end surface 117. The molten steel entering the crystallizer starts to be continuously cast from a meniscus of the continuous casting crystallizer and then flows out of the lower opening of the crystallizer, the thickness of a billet shell is from zero to a certain thickness of the billet shell, the hardness of the billet shell is gradually increased, the abrasion is also gradually increased from a slight degree to a gradual increase from an upper opening, the cooling strength of the corner of the billet is stronger, and the hardness of the billet shell is higher, so that the thickness of the strengthening layer 120 on the middle working surface 114 is gradually increased, and the thickness is gradually transited from 0.2-0.5 mm to 1.2-2.0 mm.

The thickness of the reinforcing layer 120 of the side face 115 gradually decreases in the direction from the side face 115 to the middle face 114, specifically transitioning from 2.5-3.5 mm (which may be, for example, any one or a range of values between 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, and 3.5 mm) to 1.2-2.0 mm (which may be, for example, any one or a range of values between 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, and 2.0 mm). Correspondingly, the shape of the portion of the upper surface of the plate body 110 corresponding to the side working surface 115 is gradually changed correspondingly in the direction from the side working surface 115 to the middle working surface 114.

It is noted that the present application also defines the side face 115, and in particular, the side face 115 has a reinforcing layer 120 that tapers in thickness in the direction from the side face 115 to the middle face 114, and the side face 115 has a reinforcing layer 120 that is greater than or equal to the thickness of the middle face 114. In the present application, the thickness of the reinforcing layer 120 of the side working surface 115 may be gradually reduced along the direction from the side working surface 115 to the middle working surface 114 in two ways, one way is that the thickness is gradually reduced from the two sides of the side working surface 115 of the reinforcing layer 120 of the side working surface 115, and the second way is that the thickness is gradually reduced from a specific position away from the two sides of the side working surface 115 (fig. 1 in the embodiment shows the second way), and the thickness is kept uniform until the two sides of the side working surface 115 reach the specific position, which is beneficial to the thickness of the two sides near the side working surface 115. In the application, the lower parts of the two sides of the narrow-face crystallizer copper plate 100 are obviously thickened, so that the wear rule of the narrow-face crystallizer copper plate 100 is more matched, and the research of a utility model finds that the steel passing amount of the narrow-face copper plate of the crystallizer with the corner parts not thickened on the strengthening layer 120 at the two sides is generally off line at 2.5-3 ten thousand tons; the steel passing amount of the narrow-face copper plate of the crystallizer with the thickened strengthening layer 120 at the corner parts at two sides can reach 4-5 ten thousand tons generally, so that the continuous casting plant not only reduces the cost, but also reduces the shutdown times, reduces the overhaul and installation time of loading and unloading the machine, and has considerable economic benefit.

Preferably, the thickness of the reinforcing layer 120 of the side working surface 115 gradually increases in the direction from the upper end surface 116 to the lower end surface 117. The thickness of the reinforcing layer of the side working surface 115 is the largest near the corner through the design, so that the abrasion loss of the narrow-face copper plate before inserting the wire can be increased, the steel passing amount is relatively increased, and the service life of the narrow-face copper plate is correspondingly prolonged.

In addition, the embodiment of the present invention further provides a continuous casting crystallizer, which includes the above-mentioned narrow-face crystallizer copper plate 100.

The narrow-faced mold copper plate 100 of the present embodiments 1 to 5 is divided by the dividing line 111 between the upper end surface 116 and the lower end surface 117 into a first working surface 112 near the upper end surface 116 and a second working surface 113 near the lower end surface 117, wherein the second working surface 113 includes a middle working surface 114 and side working surfaces 115 located at two sides of the middle working surface 114.

Example 1

As shown in fig. 1, fig. 2 and fig. 3, the position of the parting line 111 in the narrow-faced mold copper plate 100 provided by the present embodiment is located at 300mm from the upper end surface 116, wherein the first working surface 112 and the middle working surface 114 are of an integral structure, the reinforcing layer 120 of the first working surface 112 and the middle working surface 114 is gradually thickened from the upper end surface 116 to the lower end surface 117, the thickness is gradually changed from 0.2mm to 1.5mm, the side working surface 115 is a rectangular area with a width of 30mm, and the thickness of the reinforcing layer 120 of the side working surface 115 is gradually reduced from the side working surface 115 to the middle working surface 114, and the thickness is changed from 3mm to 1.5 mm. The excessive steel amount of the copper plate reaches 4.8 ten thousand tons.

Example 2

The position of the boundary line 111 in the narrow-face mold copper plate 100 provided by this embodiment is located at a position 200mm away from the upper end face 116, wherein the thickness of the reinforcing layer 120 of the first working face 112 is 0.2mm, the thickness of the reinforcing layer 120 of the middle working face 114 is gradually increased in the direction from the upper end face 116 to the lower end face 117, and gradually transits from 0.2mm to 1.8mm, the side working face 115 is a rectangular region with a width of 22mm, and the thickness of the reinforcing layer 120 of the side working face 115 is gradually decreased in the direction from the side working face 115 to the middle working face 114, and transits from 3.2mm to 1.8 mm. The excessive steel amount of the copper plate reaches 4.82 ten thousand tons.

Example 3:

the position of the boundary line 111 in the narrow-face mold copper plate 100 provided by this embodiment is located 300mm away from the upper end face 116, wherein the thickness of the reinforcing layer 120 of the first working face 112 is 0.3mm, the thickness of the reinforcing layer 120 of the middle working face 114 is gradually increased in the direction from the upper end face 116 to the lower end face 117, and gradually transits from 0.3mm to 1.5mm, the side working face 115 is a rectangular region with a width of 25mm, and the thickness of the reinforcing layer 120 of the side working face 115 is gradually decreased in the direction from the side working face 115 to the middle working face 114, and transits from 3.5mm to 1.5 mm. The excessive steel amount of the copper plate reaches 5 ten thousand tons.

Example 4:

as shown in fig. 4 and 5, the position of the boundary line 111 in the narrow-faced mold copper plate 100 provided by this embodiment is located at a position 300mm away from the upper end surface 116, wherein the thickness of the reinforcing layer 120 of the first working surface 112 is 0.3mm, the thickness of the reinforcing layer 120 of the middle working surface 114 is gradually increased in the direction from the upper end surface 116 to the lower end surface 117, the transition is gradually from 0.5mm to 1.5mm, the width of the side working surface 115 is a rectangular region with a width of 20mm, and the thickness of the reinforcing layer 120 of the lower end surface 117 of the side working surface 115 is gradually decreased in the direction from the side working surface 115 to the middle working surface 114, and the transition is from 3mm to 1.5 mm. The thickness of the reinforcing layer 120 of the working face 115 gradually increases from 0.5mm to 3mm in the direction from the upper end face 116 to the lower end face 117. The excessive steel amount of the copper plate with the structure reaches 4.6 ten thousand tons.

Example 5:

as shown in fig. 6 and 7, the position of the boundary line 111 in the narrow-face mold copper plate 100 provided by this embodiment is located at a position 300mm away from the upper end face 116, wherein the thickness of the reinforcing layer 120 of the first working face 112 is 0.3mm, the thickness of the reinforcing layer 120 of the middle working face 114 is gradually increased in the direction from the upper end face 116 to the lower end face 117, and gradually transits from 0.3mm to 1.5mm, in this embodiment, the side working face 115 is a triangular region, the length of the lower opening side of the triangular region is 30mm, and the thickness of the reinforcing layer 120 of the lower end face 117 of the side working face 115 is gradually decreased in the direction from the side working face 115 to the middle working face 114, and transits from 3mm to 1.5 mm. The thickness of the reinforcing layer 120 of the working face 115 gradually increases from 0.5mm to 3mm in the direction from the upper end face 116 to the lower end face 117. The excessive steel amount of the copper plate with the structure reaches 4.3 ten thousand tons.

To sum up, the embodiment of the present invention provides a narrow-face crystallizer copper plate 100, through dividing each region of plate body 110, and the thickness of strengthening layer 120 to middle working face 114 is designed to be gradually thickened along the direction from upper end face 116 to lower end face 117, and the thickness of strengthening layer 120 to lateral working face 115 is designed to be gradually reduced along the direction from lateral working face 115 to middle working face 114. The lower part and the two sides of the lower part of the narrow-face crystallizer copper plate 100 can be obviously thickened through the design, so that the wear rule of the narrow-face crystallizer copper plate 100 is more matched, the cost of a continuous casting steel mill is favorably reduced, the shutdown times are reduced, the overhaul and installation time of loading and unloading is reduced, and the economic benefit is more considerable.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A narrow-face crystallizer copper plate is characterized by comprising a plate body and a strengthening layer attached to the surface of the plate body, wherein a working face from an upper end face to a lower end face of the narrow-face crystallizer copper plate is divided into a first working face close to the upper end face and a second working face close to the lower end face through a preset boundary line, and the second working face comprises a middle working face and side working faces located on two sides of the middle working face; the thickness of the strengthening layer of the middle working face is gradually increased along the direction from the upper end face to the lower end face, the thickness of the strengthening layer of the side working face is gradually reduced along the direction from the side working face to the middle working face, and the minimum thickness of the strengthening layer of the side working face is larger than or equal to the thickness of the strengthening layer of the middle working face.

2. The narrow-faced mold copper plate as claimed in claim 1, wherein the position of the dividing line is at a distance of 200-300 mm from the upper end face.

3. Narrow-faced crystallizer copper plate as claimed in claim 1, characterized in that said lateral working surfaces are located in the region of 20-30 mm width on both sides of said second working surface.

4. The narrow face crystallizer copper plate of claim 3, wherein the side working faces are rectangular areas or triangular areas with a width of the lower end face of 20-30 mm.

5. The narrow-faced crystallizer copper plate as claimed in any one of claims 1 to 4, wherein the thickness of the strengthening layer of the intermediate working face gradually changes from 0.2 to 0.5mm to 1.2 to 2.0mm in the direction from the upper end face to the lower end face.

6. Narrow-faced crystallizer copper plate as claimed in any one of claims 1 to 4, characterized in that the thickness of the reinforcement layer of the side working faces transitions from 2.5-3.5 mm to 1.2-2.0 mm in the direction from the side working faces to the middle working face.

7. The narrow-faced mold copper plate according to any one of claims 1 to 4, wherein the thickness of the reinforcing layer of the first working face is gradually increased in the direction from the upper end face to the lower end face or the thickness of the reinforcing layer of the first working face is the same; the maximum strengthening layer thickness of the first working surface is not greater than the minimum strengthening layer thickness of the middle working surface.

8. Narrow-faced crystallizer copper plate according to claim 7, characterized in that the thickness of the reinforcing layer of said first working face is comprised between 0.2 and 0.3 mm.

9. The narrow-faced crystallizer copper plate as claimed in any one of claims 1 to 4, wherein the thickness of the strengthening layer of the side working faces is gradually increased in the direction from the upper end face to the lower end face.

10. A continuous casting mould, characterized in that it comprises a narrow-sided mould copper plate according to any one of claims 1 to 9.

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