Thin slab continuous casting crystallizer narrow-face copper plate with prolonged service life

Abstract

The utility model relates to the technical field of steelmaking continuous casting key equipment, and discloses a thin slab continuous casting crystallizer narrow-face copper plate capable of prolonging the service life, which comprises a narrow-face copper plate main body, two groups of reinforcing openings are formed in the lower surface of the narrow-face copper plate main body, and reinforcing treatment mechanisms are welded on the surfaces of the reinforcing openings. And the strengthening treatment mechanism comprises a nickel plating layer and a hard alloy layer, a conical wear-resisting block is fixedly connected to the middle of the lower surface of the narrow-face copper plate body, the nickel plating layer is welded to the surface of the strengthening opening, and the hard alloy layer is installed on the top face of the nickel plating layer. According to the thin slab continuous casting crystallizer narrow-face copper plate capable of prolonging the service life, by conducting surface strengthening treatment on the edge areas of the two sides, seriously abraded, of the lower middle portion of the narrow-face copper plate body, the mechanical abrasion resistance of the narrow-face copper plate is improved, the milling and grinding amount during copper plate reprocessing is reduced, and the service life of the narrow-face copper plate is prolonged; and meanwhile, the problem that copper of a crystallizer copper plate infiltrates into a casting blank shell in the friction process, and surface cracks are generated can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steelmaking continuous casting key equipment technology, especially to a kind of thin slab continuous casting crystallizer narrow face copper plate of improving life. BACKGROUND

[0002] Thin slab continuous casting speed is high, the heat of molten steel in crystallizer needs to be rapidly exported in short time, and a certain thickness of billet shell is formed at the outlet of crystallizer, so the copper plate is required to have excellent heat conductivity, and therefore the surface of thin slab continuous casting crystallizer copper plate is usually not plated, and mechanical wear is caused to crystallizer copper plate when continuously rubbing against slab.In actual production process, it is found that the working surface starts to wear from about 400mm from the top of narrow face copper plate, and the wear is more serious at the bottom, especially at the edges of the two sides of narrow face copper plate, which is worn into a "chamfer", resulting in a large amount of milling and grinding amount of each time offline, and the effective working thickness is too thin after usually milling and grinding 4-5 times, so the thin slab is scrapped, which greatly reduces the service life of narrow face copper plate, and cracks may also be generated on the surface of slab.

[0003] The utility model provides a kind of thin slab continuous casting crystallizer narrow face copper plate of improving life, the middle lower part of narrow face copper plate is separately carried out surface strengthening treatment within 10-12mm on two sides, including electroplating, spraying or laser surface treatment etc., improve the wear resistance and comprehensive performance of copper plate, so as to greatly improve the service life of thin slab continuous casting crystallizer copper plate.

[0004] Therefore, it is necessary to provide a kind of thin slab continuous casting crystallizer narrow face copper plate of improving life to solve the above problems. UTILITY MODEL CONTENT

[0005] (One) technical problem solved

[0006] The utility model solves the technical problem to provide a kind of thin slab continuous casting crystallizer narrow face copper plate of improving life, which has high practicability, can be operated simply, and has simple structure, and solves the problem of improving the wear resistance and comprehensive performance of copper plate in the above background technology.

[0007] (Two) technical scheme

[0008] To achieve the above object, the utility model is realized by the following technical scheme: a kind of thin slab continuous casting crystallizer narrow face copper plate of improving life, including narrow face copper plate main part, characterized by: two groups of reinforcing openings are set in the lower surface of the narrow face copper plate main part, the surface of the reinforcing opening is welded with strengthening treatment mechanism, the strengthening treatment mechanism includes nickel plating layer and hard alloy layer, the middle part of the lower surface of the narrow face copper plate main part is fixedly connected with conical wear block.

[0009] As a further scheme of the utility model, the nickel plating layer is welded on the surface of the reinforcing port, and a hard alloy layer is installed on the top surface of the nickel plating layer, so that the wear resistance of the narrow surface copper plate body is improved.

[0010] As a further scheme of the utility model, the surface of the narrow surface copper plate body is fixedly connected with connecting blocks on both sides, screw holes are formed in the surface of the connecting blocks, and the connecting blocks are convenient for supporting equipment.

[0011] As a further scheme of the utility model, bolts are screw-connected in the screw holes, fastening nuts are screw-connected to the lower surface of the bolts, and the fastening nuts are convenient for fixing the bolts.

[0012] As a further scheme of the utility model, rubber gaskets A are overlapped on the upper surface of the connecting blocks, rubber gaskets B are overlapped on the lower surface of the connecting blocks, and the rubber gaskets B are convenient for rust prevention.

[0013] As a further scheme of the utility model, the rubber gaskets A are overlapped on the surface of the bolts, the rubber gaskets B are overlapped on the surface of the fastening nuts, and the rubber gaskets A are convenient for sealing performance of the bolts.

[0014] As a further scheme of the utility model, the width of the narrow surface copper plate body is 60-90mm, and the effective working layer thickness of the narrow surface copper plate body is 12-20mm.

[0015] As a further scheme of the utility model, the working surface of the narrow surface copper plate body in contact with the steel liquid is not provided with a plating layer in a region without surface treatment, and the plating layer region on the surface of the narrow surface copper plate body is two groups.

[0016] As a further scheme of the utility model, the working surface of the narrow surface copper plate body in contact with the steel liquid is not provided with a plating layer in a region without surface treatment, and the plating layer region on the surface of the narrow surface copper plate body is two groups.

[0017] (Three) beneficial effects

[0018] The utility model provides a kind of improve the life of thin slab continuous casting mould narrow surface copper plate, with following beneficial effects:

[0019] The thin slab continuous casting mould narrow surface copper plate of improving the life, by the surface strengthening treatment of the two side edge regions of the narrow surface copper plate body middle lower part wear seriously, improve its anti-mechanical grinding ability, reduce the milling amount when copper plate is reprocessed, improve the service life of narrow surface copper plate, it can also prevent copper of crystallizer copper plate in the process of friction from penetrating into billet shell, and produce surface crack problem. DRAWINGS

[0020] Figure 1 It is the whole structure schematic view of the utility model;

[0021] Figure 2 It is the strengthening treatment mechanism structure schematic view of the utility model;

[0022] Figure 3 It is the narrow surface copper plate main body structure schematic view of the utility model;

[0023] Figure 4 It is the bolt structure schematic view of the utility model.

[0024] In the drawing: 1, narrow surface copper plate main body, 2, reinforcing mouth, 3, strengthening treatment mechanism, 301, nickel plating layer, 302, hard alloy layer, 4, conical wear-resistant block, 5, connecting block, 6, bolt, 7, fastening nut, 8, rubber gasket A, 9, rubber gasket B. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1 to 4 The utility model provides a kind of technical solutions: the narrow surface copper plate of thin slab continuous casting crystallizer of improving life, including narrow surface copper plate main body 1, two groups of reinforcing mouth 2 are set in the lower surface of narrow surface copper plate main body 1, reinforcing mouth 2 is welded with strengthening treatment mechanism 3 on surface, strengthening treatment mechanism 3 includes nickel plating layer 301 and hard alloy layer 302, the middle part of the lower surface of narrow surface copper plate main body 1 is fixedly connected with conical wear-resistant block 4;

[0027] Please refer to Figure 2 Nickel plating layer 301 is welded on the surface of reinforcing mouth 2, hard alloy layer 302 is installed on the top surface of nickel plating layer 301, and hard alloy layer 302 facilitates to improve the wear resistance of narrow surface copper plate main body 1.

[0028] Please refer to Figure 3 The surface of narrow surface copper plate main body 1 is fixedly connected with connecting block 5 on both sides, threaded hole is set on the surface of connecting block 5, and connecting block 5 facilitates to support equipment.

[0029] Please refer to Figure 3 Threaded hole is internally threadedly connected with bolt 6, and the lower surface of bolt 6 is threadedly connected with fastening nut 7, and fastening nut 7 facilitates to fix bolt 6.

[0030] Please refer to Figure 4The upper surface of the connecting block 5 is overlapped with a rubber gasket A8, and the lower surface of the connecting block 5 is overlapped with a rubber gasket B9, and the rubber gasket B9 is convenient for rust prevention;

[0031] Please refer to Figure 4 The rubber gasket A8 is overlapped on the surface of the bolt 6, and the rubber gasket B9 is overlapped on the surface of the fastening nut 7, and the rubber gasket A8 is convenient for the sealing performance of the bolt 6;

[0032] Please refer to Figure 1 The width of the narrow-face copper plate body 1 is 60-90mm, and the effective working layer thickness of the narrow-face copper plate body 1 is 12-20mm;

[0033] Please refer to Figure 1 The working surface of the narrow-face copper plate body 1 which is contacted with the steel liquid is not provided with a plating layer in the area which is not subjected to surface treatment, and the plating layer area of the surface of the narrow-face copper plate body 1 is two groups;

[0034] Please refer to Figure 1 The working surface of the narrow-face copper plate body 1 which is contacted with the steel liquid is subjected to surface strengthening treatment starting from 400-500mm away from the top, and the copper plate within 10-12mm is subjected to surface strengthening treatment, and the treatment depth is linearly distributed along the height direction as 0-5mm.

[0035] The thin slab continuous casting crystallizer narrow-face copper plate and the wide-face copper plate of the funnel type crystallizer are used in cooperation, the width range of the wide-face copper plate is 1600-1800mm, and the height is 1100mm.

[0036] The working surface of the thin slab continuous casting crystallizer narrow-face copper plate which is contacted with the steel liquid is subjected to surface strengthening treatment starting from 450mm away from the top, and the copper plate within 10mm on both sides is subjected to surface strengthening treatment, and the treatment depth is linearly distributed along the height direction, the surface strengthening treatment depth at the position 450mm away from the top is 0, the linear variation increases, and the depth at the bottom of the narrow-face copper plate is 5mm. The width of the narrow-face copper plate is 70mm, and the height is 1100mm. The other areas of the narrow-face copper plate are not provided with a plating layer. The continuous casting drawing speed is 4.5-5.5m / min, the cooling water volume and the taper of the crystallizer are not changed, the pouring is checked after 200 furnaces, the deepest wear of the lower part of the narrow-face copper plate is 0.2mm, and the previous wear is usually 0.6-1.8mm;

[0037] In the utility model, the working steps of the device are as follows:

[0038] The first step is that the surface strengthening treatment is carried out on the two side edge areas of the lower part of the narrow-face copper plate body 1 which are seriously worn, the mechanical wear resistance is improved, the milling and grinding amount during the reprocessing of the copper plate is reduced, the service life of the narrow-face copper plate is improved, and the copper of the crystallizer copper plate is prevented from penetrating into the casting blank shell during the friction process, and the surface crack problem is avoided.

[0039] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the setting of the power mechanism, power supply system and control system of the device is not completely described, and under the premise of understanding the principle of the above-mentioned application by the person skilled in the art, the specific of the power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0040] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A thin slab continuous casting mold narrow face copper plate for improving life, comprising a narrow face copper plate main body (1), characterized in that: The lower surface of the narrow copper plate body (1) is provided with two groups of reinforcing openings (2), the surface of the reinforcing opening (2) is welded with a strengthening treatment mechanism (3), the strengthening treatment mechanism (3) comprises a nickel plating layer (301) and a hard alloy layer (302), and the middle part of the lower surface of the narrow copper plate body (1) is fixedly connected with a conical wear-resistant block (4).

2. The thin slab continuous casting mold narrow face copper plate with improved service life according to claim 1, characterized in that: The nickel plating layer (301) is welded on the surface of the reinforcing opening (2), and the top surface of the nickel plating layer (301) is provided with a hard alloy layer (302).

3. The thin slab continuous casting mold narrow face copper plate with improved service life according to claim 1, characterized in that: The surface of the narrow copper plate body (1) is fixedly connected with a connecting block (5) on both sides, and the surface of the connecting block (5) is provided with a threaded hole.

4. The thin slab continuous casting mold narrow side copper plate with improved service life according to claim 3, characterized in that: The threaded hole is internally screwed with a bolt (6), and the lower surface of the bolt (6) is screwed with a fastening nut (7).

5. The thin slab continuous casting mold narrow side copper plate with improved service life according to claim 3, characterized in that: The upper surface of the connecting block (5) is overlapped with a rubber gasket A (8), and the lower surface of the connecting block (5) is overlapped with a rubber gasket B (9).

6. The thin slab continuous casting mold narrow copper plate with increased service life according to claim 5, characterized in that: The rubber gasket A (8) is overlapped on the surface of the bolt (6), and the rubber gasket B (9) is overlapped on the surface of the fastening nut (7).

7. The thin slab continuous casting mold narrow side copper plate with improved service life according to claim 1, characterized in that: The width of the narrow copper plate body (1) is 60-90mm, and the effective working layer thickness of the narrow copper plate body (1) is 12-20mm.

8. The thin slab continuous casting mold narrow side copper plate with improved service life according to claim 1, characterized in that: The working surface of the narrow copper plate body (1) in contact with the steel liquid has no plating layer in the area without surface treatment, and the plating layer area of the surface of the narrow copper plate body (1) is two groups.

9. The thin slab continuous casting mold narrow side copper plate with improved service life according to claim 1, characterized in that: The working surface of the narrow copper plate body (1) in contact with the steel liquid starts from 400-500mm from the top, the reinforcing opening (2) is used for surface strengthening treatment of the copper plate within 10-12mm, and the depth of the treatment is linearly distributed as 0-5mm along the height direction.

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