High-temperature-resistant and corrosion-resistant hot-dip galvanized steel plate

Abstract

The utility model provides a high-temperature-resistant corrosion-resistant hot-dip galvanized steel plate, which relates to the field of hot-dip galvanized steel plates and comprises a hot-dip galvanized steel plate body, the hot-dip galvanized steel plate body comprises a steel plate layer and a galvanized layer, graphite layers are welded on the upper end face and the lower end face of the galvanized layer through soldering tin layers, and high-temperature corrosion-resistant coatings are sprayed on the outer surfaces of the graphite layers. A reinforcing groove hole is formed in the graphite layer, the reinforcing groove hole is connected with a welding column through a round pressing piece, and the column face of the welding column is welded to the zinc coating. The hot-dip galvanized steel plate solves the problem that in the prior art, an anti-oxidation film layer on the surface of the hot-dip galvanized steel plate is extremely prone to being damaged by daily scratching, and consequently a galvanized layer at the damaged position locally falls off.

Description

Technical Field

[0001] The utility model relates to the field of hot-dip galvanized steel plates, in particular to a high-temperature resistant and corrosion-resistant hot-dip galvanized steel plate. Background Art

[0002] Hot-dip galvanized steel plate is a welded steel plate with a hot-dip galvanized layer on the surface. It is generally widely used in construction, home appliances, vehicles and ships, container manufacturing, electromechanical industry, etc. After searching, the prior art (Announcement No.: CN202322221983.9) is an anti-oxidation high-strength hot-dip galvanized steel plate. The text records that "the utility model is beneficial to improving the anti-oxidation effect of the hot-dip galvanized steel plate by setting the first anti-oxidation film layer and the second anti-oxidation film layer. By using the titanium steel plate layer, the first steel plate layer and the second steel plate layer, it is beneficial to improve the structural strength of the hot-dip galvanized steel plate. By setting a number of groups of reinforcing ribs, it is beneficial to improve the compressive capacity of the hot-dip galvanized steel plate, thereby increasing the service life of the hot-dip galvanized steel plate." However, the anti-oxidation film layer on the surface of the hot-dip galvanized steel plate in the prior art is extremely susceptible to daily scratches and damage, resulting in partial detachment of the galvanized layer at the damaged location. Utility Model Content

[0003] In order to overcome the defects of the prior art, a high temperature resistant and corrosion resistant hot-dip galvanized steel plate is provided to solve the problem that the anti-oxidation film layer on the surface of the hot-dip galvanized steel plate in the prior art is easily damaged by daily scratches, resulting in partial shedding of the galvanized layer at the damaged part.

[0004] To achieve the above object, a high temperature resistant and corrosion resistant hot-dip galvanized steel sheet is provided, comprising: a hot-dip galvanized steel sheet body, wherein the hot-dip galvanized steel sheet body comprises a steel sheet layer and a galvanized layer,

[0005] The upper and lower end surfaces of the galvanized layer are welded with a graphite layer through a solder layer, the outer surface of the graphite layer is sprayed with a high-temperature anti-corrosion coating, a reinforcement slot hole is opened inside the graphite layer, the reinforcement slot hole is connected to a welding column through a circular pressing plate, and the column surface of the welding column is welded to the galvanized layer.

[0006] Furthermore, a hot-dip galvanized layer is attached to the outer surface of the steel plate layer by hot dipping, and graphite layers are provided on the upper and lower end surfaces of the hot-dip galvanized layer.

[0007] Furthermore, a solder layer is coated on one side of the graphite layer, and a high-temperature anti-corrosion coating is sprayed on the other side of the graphite layer.

[0008] Furthermore, a circular pressing plate is welded on the cylindrical surface of one end of the welding column, and the other end is pressure-welded to the galvanized layer.

[0009] Furthermore, the graphite layer is connected to the circular pressing sheet by a welding column made of titanium steel embedded in a reinforcement slot.

[0010] Furthermore, the circular pressing sheet is inlaid and bonded to the groove surface of the reinforcement slot hole by means of an adhesive.

[0011] Furthermore, the steel plate layer, the galvanized layer, the graphite layer and the high-temperature anti-corrosion coating constitute a composite layer structure of the hot-dip galvanized steel plate body.

[0012] The beneficial effect of the utility model is that the high-temperature resistant and corrosion-resistant hot-dip galvanized steel plate of the utility model utilizes welding columns to reinforce and weld a graphite layer to the surface of the hot-dip galvanized steel plate, so that the graphite layer protects the galvanized layer on the surface of the hot-dip galvanized steel plate, forming an anti-stripping composite structure of the hot-dip galvanized steel plate, preventing the galvanized layer from falling off due to high temperature and corrosion factors, while enhancing the strength and durability of the hot-dip galvanized steel plate, and improving the high-temperature resistance and corrosion resistance of the hot-dip galvanized steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front cross-sectional structure of a high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the partial cross-sectional structure of a high temperature resistant and corrosion resistant hot-dip galvanized steel sheet in a front view according to an embodiment of the utility model.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the graphite layer of an embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the graphite layer of an embodiment of the utility model.

[0017] In the figure: 1. hot-dip galvanized steel plate body; 2. steel plate layer; 3. galvanized layer; 4. graphite layer; 41. solder layer; 42. reinforced slots; 5. high-temperature anti-corrosion coating; 6. welding column; 61. round pressing piece. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a high temperature resistant and corrosion resistant hot dip galvanized steel plate, comprising: a hot dip galvanized steel plate body 1, the hot dip galvanized steel plate body 1 comprises a steel plate layer 2 and a galvanized layer 3,

[0019] The upper and lower end surfaces of the galvanized layer 3 are welded with a graphite layer 4 through a solder layer 41, and a high-temperature anti-corrosion coating 5 is sprayed on the outer surface of the graphite layer 4. A reinforcement slot 42 is opened inside the graphite layer 4, and the reinforcement slot 42 is connected to a welding column 6 through a circular pressing plate 61. The cylindrical surface of the welding column 6 is welded to the galvanized layer 3.

[0020] The hot-dip galvanized steel plate body 1 is reinforced and welded with a graphite layer 4 on the surface of the hot-dip galvanized steel plate through welding columns 6, so that the graphite layer 4 protects the galvanized layer 3 on the surface of the hot-dip galvanized steel plate, forming an anti-stripping composite structure of the hot-dip galvanized steel plate, preventing the galvanized layer from falling off due to high temperature and corrosion factors, and at the same time enhancing the strength and durability of the hot-dip galvanized steel plate, and improving the high temperature resistance and corrosion resistance of the hot-dip galvanized steel plate.

[0021] In this embodiment, a hot-dip galvanized layer 3 is attached to the outer surface of the steel plate layer 2 by hot dipping, and a graphite layer 4 is provided on the upper and lower end surfaces of the hot-dip galvanized layer 3. A solder layer 41 is coated on one side of the graphite layer 4, and a high-temperature anti-corrosion coating 5 is sprayed on the other side.

[0022] As a preferred embodiment, the graphite layer 4 composited with the hot-dip galvanized steel plate body 1 has the properties of light weight, high strength, corrosion resistance and high temperature resistance, which is convenient for enhancing the strength and durability of the hot-dip galvanized steel plate and improving the high temperature resistance and corrosion resistance of the hot-dip galvanized steel plate. The high-temperature anti-corrosion coating 5 is sprayed on the surface of the graphite layer 4 using a water-based inorganic coating made of a special high-temperature solution and an inorganic polymer.

[0023] In this embodiment, a circular pressing piece 61 is welded to the cylindrical surface of one end of the welding column 6 , and the other end is pressure-welded to the galvanized layer 3 .

[0024] As a preferred embodiment, the circular pressing piece 61 facilitates the pressing of the welding column 6 and the graphite layer 4. The pressure welding connection between the welding column 6 and the galvanized layer 3 facilitates preventing the graphite layer 4 from falling off or separating.

[0025] In this embodiment, the graphite layer 4 is connected to the circular pressing plate 61 by embedding a welding column 6 made of titanium steel through the reinforcement slot 42. The circular pressing plate 61 is inlaid and fitted with the slot surface of the reinforcement slot 42 through an adhesive.

[0026] As a preferred embodiment, the welding column 6 and the circular pressing plate 61 made of titanium steel are convenient for further strengthening the welding firmness of the graphite layer 4 and preventing the graphite layer 4 from falling off.

[0027] In this embodiment, the steel plate layer 2, the galvanized layer 3, the graphite layer 4 and the high-temperature anti-corrosion coating 5 constitute a composite layer structure of the hot-dip galvanized steel plate body 1.

[0028] As a preferred embodiment, the composite layer structure of the hot-dip galvanized steel plate body 1 prevents the galvanized layer 3 from falling off due to high temperature and corrosion factors, while enhancing the strength and durability of the hot-dip galvanized steel plate, and improving the high temperature resistance and corrosion resistance of the hot-dip galvanized steel plate.

[0029] The high-temperature resistant and corrosion-resistant hot-dip galvanized steel plate of the utility model can effectively solve the problem in the prior art that the anti-oxidation film layer on the surface of the hot-dip galvanized steel plate is easily damaged by daily scratches, resulting in partial shedding of the galvanized layer at the damaged part, thereby preventing the galvanized layer from shedding due to high temperature and corrosion factors, and at the same time enhancing the strength and durability of the hot-dip galvanized steel plate, improving the high-temperature resistance and corrosion resistance of the hot-dip galvanized steel plate, and being suitable for high-temperature resistant and corrosion-resistant hot-dip galvanized steel plate.

Claims

1. A high temperature resistant and corrosion resistant hot dip galvanized steel sheet, comprising: A hot-dip galvanized steel sheet body (1), wherein the hot-dip galvanized steel sheet body (1) comprises a steel sheet layer (2) and a galvanized layer (3), and is characterized in that: The upper and lower end surfaces of the galvanized layer (3) are welded with a graphite layer (4) via a solder layer (41); the outer surface of the graphite layer (4) is sprayed with a high-temperature anti-corrosion coating (5); a reinforcement slot (42) is provided inside the graphite layer (4); the reinforcement slot (42) is connected to a welding column (6) via a circular pressing sheet (61); and the column surface of the welding column (6) is welded to the galvanized layer (3).

2. The high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to claim 1, characterized in that: A hot-dip galvanized layer (3) is attached to the outer surface of the steel plate layer (2) by hot dipping, and graphite layers (4) are provided on the upper and lower end surfaces of the hot-dip galvanized layer (3).

3. The high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to claim 1, characterized in that: One side surface of the graphite layer (4) is coated with a solder layer (41), and the other side surface is sprayed with a high-temperature anti-corrosion coating (5).

4. The high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to claim 1, characterized in that: A circular pressing piece (61) is welded to the cylindrical surface of one end of the welding column (6), and the other end is pressure-welded to the galvanized layer (3).

5. The high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to claim 1, characterized in that: The graphite layer (4) is connected to a welding column (6) made of titanium steel and a circular pressing sheet (61) embedded in a reinforcement slot (42).

6. The high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to claim 5, characterized in that: The circular pressing sheet (61) is embedded and bonded to the groove surface of the reinforcement groove hole (42) by means of an adhesive.

7. The high temperature resistant and corrosion resistant hot dip galvanized steel sheet according to claim 1, characterized in that: The steel plate layer (2), the galvanized layer (3), the graphite layer (4) and the high-temperature anti-corrosion coating (5) constitute a composite layer structure of the hot-dip galvanized steel plate body (1).

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