Modularized variety steel composite inlaid sliding plate

Abstract

A working area in the middle of a sliding plate body is provided with a long groove consistent with the sliding plate body in the length direction, one end of the long groove extends to the middle of a steel flowing hole of the sliding plate body, an inlay plate is installed in the long groove in a matched mode, and the end of the inlay plate is provided with an arc-shaped concave portion matched with the steel flowing hole in size. A layer of fire clay is arranged between the inlaying plate and the long groove, a plurality of clay locking grooves A are uniformly formed in the bottom surface of the long groove, the fire clay enters the clay locking grooves A, and clay locking grooves B are correspondingly formed in the middle of the end surface of the long groove and the middle of the end surface of the inlaying plate; the inlaying part of the inlaying plate is used in a key working area where the sliding plate is most seriously abraded, the advantages of high strength and scouring resistance of the inlaying plate are utilized, erosion to the sliding plate during steel casting of variety steel is reduced, the continuous sliding frequency of the sliding plate can be effectively increased, the use amount of refractory materials is reduced, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the field of refractory materials, in particular to a modular steel composite inlaid slide plate. Background Art

[0002] With the continuous development and adjustment of domestic steelmaking conditions, steel mills that originally mainly produced ordinary carbon steel have been constantly adjusted to develop into the current high-calcium and high-oxygen steel varieties, gradually eliminating low-value-added steels. Steelmaking production has put forward more stringent requirements for the use of slides, especially to meet the casting needs of calcium-treated steel and high-oxygen steel; refractory production continues to develop new materials based on existing slide materials, and adopts metal-bonded unfired slides, medium-temperature and high-temperature fired aluminum-carbon, aluminum-zirconium-carbon slides and other methods to meet the use requirements.

[0003] The medium-temperature and high-temperature fired slide plates have the advantages of corrosion resistance, oxidation resistance, and thermal shock resistance. They can increase the service life of the slide plates and have strong adaptability to steel grades. They can meet the steelmaking requirements of most current steel grades. When casting steel, the working area and casting hole of the slide plate will cause roughening and chamfering of the casting hole due to the frequent switching of the steel casting process, which will form a tongue shape, resulting in failure to close the ladle and steel leakage. This is the main reason why the slide plate cannot slide continuously. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a modular steel composite inlaid slide plate.

[0005] The technical solution of the utility model is:

[0006] A modular steel composite inlaid skateboard, a long groove consistent with the length direction of the skateboard body is provided in the middle of the skateboard body, the center line of the long groove coincides with the center line of the skateboard body, one end of the long groove extends to the middle of the steel flow hole of the skateboard body, an inlay plate is matched and installed in the long groove, a fire mud gap is provided between the inlay plate and the long groove, an arc-shaped recessed portion matching the size of the steel flow hole is provided at the end of the inlay plate, transition arcs are provided at both ends of the arc-shaped recessed portion, a layer of fire mud is provided between the inlay plate and the long groove, and a plurality of locking mud grooves A are evenly provided on the bottom surface of the long groove, the fire mud enters into the locking mud groove A, and locking mud grooves B are correspondingly provided in the middle of the end face of the long groove and the middle of the end face of the inlay.

[0007] Preferably, the mud-locking groove A is an inclined groove with a certain slope, and the spacing between adjacent mud-locking grooves is the same.

[0008] Preferably, both of the two mud-locking grooves B are grooves, the cross-sections of the mud-locking grooves B and the fire mud gap are cross-shaped, and the width of the grooves is greater than the width of the fire mud gap.

[0009] Preferably, an inner lining layer is provided in the steel flow hole, the two ends of the inner lining layer are flush with the two end surfaces of the skateboard body, a notch is provided at the lower end of the inner lining layer, the inlay plate matches and extends into the notch, and the size of the arc-shaped recessed portion matches the inner diameter of the inner lining layer.

[0010] Preferably, the lining layer and the inlay plate are both made of high temperature resistant and high hardness materials.

[0011] Preferably, the skateboard body is in the shape of a flat plate, and a steel belt is sleeved on the outer side of the flat skateboard body, and the size of the steel belt is slightly smaller than the size of the outer side of the skateboard body.

[0012] Preferably, a steel shell is provided between the outer side surface and the upper surface of the flat skateboard body, and the side surface of the steel shell is covered with a steel belt.

[0013] Preferably, the skateboard body is in the shape of a flat plate as a whole, a positioning boss is provided at the steel flow hole portion of the skateboard body, the positioning boss has a certain taper, and a steel belt is sleeved on the outer side of the skateboard body.

[0014] Preferably, a layer of asbestos board is provided on the surface of the skateboard body, and a through hole corresponding to the position of the positioning boss is provided in the middle of the asbestos board.

[0015] The beneficial technical effects of the utility model are:

[0016] (1) The inlay plate is located in the key working area where the slide plate is most severely worn. By utilizing the advantages of high strength and erosion resistance of the inlay plate, the erosion of the slide plate during steel casting can be reduced, which can effectively increase the number of continuous sliding of the slide plate, reduce the use of refractory materials, and improve economic benefits.

[0017] (2) The slide plate adopts a modular design and can be applied to slide plates of different brick types. It has a certain degree of versatility and is easy to mass produce. It can effectively reduce production costs and meet the steelmaking needs of users with different ladle structures and brick types. In addition, the inlaid plate is small in size and easy to shape, which can effectively improve the forming strength and processing efficiency of the inlaid plate.

[0018] (3) The casting hole of the skateboard body is compositely formed with a high-grade lining layer to improve the strength of the brick blank at the part of the skateboard body that contacts the molten steel. At the same time, the skateboard body does not need to be fired at medium or high temperature, which reduces the overall firing cost of the steel skateboard and saves energy and refractory raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is one of the main structural schematic diagrams of the utility model;

[0020] Figure 2 yes Figure 1 AA section view;

[0021] Figure 3 This is the second main structural diagram of the utility model;

[0022] Figure 4 yes Figure 3 BB section view;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the mosaic panel.

[0024] In the figure, 11. slide body, 111. mud locking groove A, 112. positioning boss, 12. inlay plate, 121. arc-shaped recessed portion, 13. fire mud, 14. mud locking groove B, 15. lining layer, 16. steel belt, 17. steel shell, 18. asbestos board. DETAILED DESCRIPTION

[0025] Example 1, see the attached specification Figure 1-5 , a modular steel composite inlaid skateboard, a working area in the middle of the skateboard body 11 is provided with a long groove consistent with the length direction of the skateboard body 11, one end of the long groove is set to be semicircular, and the other end of the long groove extends to the middle of the steel flow hole of the skateboard body 11, and an inlay plate 12 is matched and installed in the long groove, and an arc-shaped recessed portion 121 matching the size of the steel flow hole is provided at the end of the inlay plate 12, and the other end of the inlay plate 12 is correspondingly set to a semicircular structure, a layer of fire mud 13 is provided between the inlay plate 12 and the long groove, and a plurality of locking mud grooves A 111 are evenly provided on the bottom surface of the long groove, and the fire mud 13 enters the locking mud groove A 111, and the locking mud groove A 111 is an inclined groove with a certain slope. After the fire mud 13 enters, the bonding is better and the strength is higher. The middle part of the end face of the long groove and the middle part of the end face of the inlay are correspondingly provided with locking mud groove B 14, and the locking mud groove B 14 are both grooves, and the cross section of the gap between the locking mud groove B 14 and the fire mud 13 is cross-shaped, and a cross-connected structure is formed after the fire mud 13 enters.

[0026] An inner lining layer 15 is provided in the flow steel hole, and a notch is provided at the lower end portion of the inner lining layer 15. The inlaid plate 12 matches and extends into the notch. The size of the arc-shaped recessed portion 121 matches the inner diameter size of the inner lining layer 15. The notch area of ​​the inner lining layer 15 is an important working area, so the inlaid plate 12 must cover this area.

[0027] The inner lining layer 15 and the mosaic panel 12 are both resistant to high temperatures, have high hardness and excellent thermal shock resistance.

[0028] like Figure 3 and Figure 4 As shown, the skateboard body 11 is in the shape of a flat plate, and a steel belt 16 is sheathed on the outer side of the flat skateboard body 11. A steel shell 17 is sheathed between the outer side and the upper surface of the skateboard body 11, and the side of the steel shell 17 covers the steel belt 16. Figure 3 and Figure 4As shown, the skateboard body 11 is generally flat, a positioning boss 112 is provided at the flow steel hole portion of the skateboard body 11, a steel belt 16 is sleeved on the outer side of the skateboard body 11, a layer of asbestos board 18 is provided on the surface of the skateboard body 11, and a through hole corresponding to the position of the positioning boss 112 is provided in the middle of the asbestos board 18.

[0029] Embodiment 2, a method for manufacturing a modular steel composite inlaid skateboard, the steps are as follows.

[0030] In the first step, the inlay plate 12 material selects high-quality plate-shaped corundum, zirconium corundum, zirconium mullite and other raw materials as the matrix, or according to the user's steelmaking requirements, high-temperature aluminum carbon, aluminum zirconium carbon and medium-temperature metal combined with the slide plate material;

[0031] The second step is to pour the mixed inlay plate 12 mud into the molding cavity of a press machine with a capacity of more than 1000 tons, spread the mud flat, start the press machine to strike, the number of hammers is ≥ 10, first light and then heavy, and gradually pressurize to form;

[0032] The third step is to put the formed mosaic panel 12 bricks on a rack, dry them naturally for 24 hours, and then push them to a drying kiln for low-temperature drying at 200°C. After drying, they are promptly loaded into a nitriding furnace for firing. A certain amount of nitrogen should be filled during the firing process to provide nitriding protection. According to the different medium-temperature and high-temperature materials, nitriding firing is performed at different firing temperatures;

[0033] The fourth step is that the skateboard body 11 is formed by composite molding. During the molding, the composite barrel is placed in the mold core of the press, the composite barrel cover is covered, the raw material of the skateboard body 11 is poured in, the raw material is evenly spread and leveled, the composite barrel cover is removed, the raw material of the lining layer 15 is poured in, the composite barrel is pulled out, the raw material of the lining layer 15 is leveled, and the press is started to strike and form. Different brick types select presses with different pressures and different numbers of striking hammers;

[0034] The fifth step is to inlay the formed inlay plate 12 with the skateboard body 11 after oil immersion and dry distillation. Before inlaying, lock mud grooves are made on the sides of the inlay plate 12 and the skateboard body 11 to facilitate better combination of the skateboard body 11 and the inlay plate 12 and prevent the inlay plate 12 from falling off. A layer of adhesive fire mud 13 is evenly applied in the inlay groove of the skateboard body 11, and then the inlay plate 12 is placed, the position is adjusted, and the inlay plate 12 is placed on the small hydraulic press platform. The hydraulic press is operated to flatten the inlay plate 12 with the working surface of the skateboard body 11, and the overflowed fire mud 13 is cleaned up, and the inlay plate 12 is placed on a rack to dry naturally.

[0035] Step 6: The mounted skateboard is naturally dried for 24 hours, that is, pushed into a dryer for drying, with a drying temperature of ≥ 200°C and a drying time of ≤ 8 hours;

[0036] The seventh step is that after the inlay, the skateboard is dried and then subjected to grinding and coating processes. After coating, the skateboard must be dried in a roller kiln, and it can be packaged after the coating is dried thoroughly.

[0037] Existing varieties of steel skateboards require medium-temperature or high-temperature firing of the entire skateboard, and oil immersion, dry distillation, and sand cleaning. The kiln is loaded with a small number of kilns, energy consumption is high, production efficiency is low, there are many processes, and costs are high. The modular composite inlay process of this embodiment is used for production. The kiln is fired with a large number of kiln loads of the inlay panels 12, and only the inlay panels 12 are fired at medium or high temperatures, which effectively reduces the energy consumption required for firing and reduces production costs. At the same time, different processes such as oil immersion or non-oil immersion can be adopted according to different user needs. There are many options, the inlay panels 12 can be fired in advance, and different brick-type skateboards can be inlaid according to the production plan, which effectively improves work efficiency.

Claims

1. A modular steel composite inlaid skateboard, characterized by: A long groove consistent with the length direction of the skateboard body is provided in the working area in the middle of the skateboard body, one end of the long groove extends to the middle of the flow steel hole of the skateboard body, an inlay plate is matched and installed in the long groove, and an arc-shaped recessed portion matching the size of the flow steel hole is provided at the end of the inlay plate, a layer of fire mud is provided between the inlay plate and the long groove, and a number of mud locking grooves A are evenly provided on the bottom surface of the long groove, the fire mud enters into the mud locking groove A, and mud locking grooves B are correspondingly provided in the middle of the end face of the long groove and the middle of the end face of the inlay.

2. The modular steel composite inlaid skateboard according to claim 1 is characterized by: The mud locking groove A is an inclined groove with a certain slope.

3. The modular steel composite inlaid skateboard according to claim 1 is characterized by: Both locking mud grooves B are grooves, and the cross-section of the locking mud groove B and the fire mud gap is cross-shaped.

4. The modular steel composite inlaid skateboard according to claim 1 is characterized by: An inner lining layer is arranged in the steel flow hole, a notch is arranged at the lower end of the inner lining layer, the inlay plate is matched and extended into the notch, and the size of the arc-shaped recessed part matches the inner diameter size of the inner lining layer.

5. The modular steel composite inlaid skateboard according to claim 4 is characterized by: The inner lining layer and the inlaid plate are both made of high temperature resistant and high hardness materials.

6. The modular steel composite inlaid skateboard according to claim 1 is characterized by: The skateboard body is in the shape of a flat plate, and a steel belt is sleeved on the outer side of the flat plate-shaped skateboard body.

7. The modular steel composite inlaid skateboard according to claim 6 is characterized by: A steel shell is sleeved between the outer side surface and the upper surface of the flat plate-shaped skateboard body, and the side surface of the steel shell is covered with a steel belt.

8. The modular steel composite inlaid skateboard according to claim 1 is characterized by: The skateboard body is in the shape of a flat plate as a whole, a positioning boss is arranged on the steel flow hole of the skateboard body, and a steel belt is sleeved on the outer side of the skateboard body.

9. The modular steel composite inlaid skateboard according to claim 8 is characterized by: A layer of asbestos board is arranged on the surface of the slide body, and a through hole corresponding to the position of the positioning boss is arranged in the middle of the asbestos board.

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