Corrosion-resistant steel plate

Abstract

The utility model discloses a corrosion-resistant steel plate which comprises a steel plate base body, two protective sleeves are arranged outside the steel plate base body, each protective sleeve comprises a protective sleeve base body, a heat insulation layer is arranged on the outer wall of each protective sleeve base body, a first corrosion-resistant layer is arranged on the outer wall of each heat insulation layer, and a second corrosion-resistant layer is arranged on the outer wall of each first corrosion-resistant layer. A first corrosion-resistant layer is arranged on the outer wall of the steel plate base body, a second corrosion-resistant layer is arranged on the outer wall of the first corrosion-resistant layer, the two protective sleeves are symmetrically arranged on the steel plate base body up and down, grooves are formed in the four corners of each protective sleeve, fastening bolts are installed in the grooves, and four screw holes are formed in each of the top wall and the bottom wall of the steel plate base body. After the steel plate is used for a long time and the two protective sleeves outside the steel plate base body are both damaged and scrapped, the fastening bolts can be sequentially disassembled to disassemble the two scrapped protective sleeves and replace new protective sleeves, so that after the outer surface of the steel plate is damaged, the whole steel plate does not need to be scrapped, only the two protective sleeves need to be replaced, resource waste is reduced, and the cost is reduced. The cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plates, in particular to a corrosion-resistant steel plate. Background Art

[0002] Steel plate is a flat plate made by pouring molten steel and pressing it after cooling. It is flat and rectangular and can be directly rolled or cut from wide steel strips. Steel plates are widely used and can be seen on various mechanical equipment. With the development of world industrialization, the service life of steel plates is increasingly required. Improving the corrosion resistance of steel plates is an important way to improve the service life of steel plates.

[0003] Although the corrosion resistance of steel plates can be improved by coating them with corrosion-resistant coating in the prior art, this method only increases the service life of the steel plates. Eventually, the steel plates will be damaged by corrosion, at which point the steel plates will be scrapped as a whole, resulting in a waste of resources. In response to this, we have proposed a corrosion-resistant steel plate to solve the above-mentioned problem. Utility Model Content

[0004] The purpose of the utility model is to provide a corrosion-resistant steel plate to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a corrosion-resistant steel plate, comprising:

[0006] A steel plate substrate, two protective covers are arranged outside the steel plate substrate, the protective covers include a protective cover substrate, a heat insulation layer is arranged on the outer wall of the protective cover substrate, a first corrosion-resistant layer is arranged on the outer wall of the heat insulation layer, a second corrosion-resistant layer is arranged on the outer wall of the first corrosion-resistant layer, the two protective covers are symmetrically arranged on the steel plate substrate from top to bottom, grooves are opened at the four corners of the protective covers, fastening bolts are installed in the grooves, four screw holes are opened on the top wall and bottom wall of the steel plate substrate, and the fastening bolts are threadedly connected in the screw holes.

[0007] Preferably, a sealing gasket is sleeved on the fastening bolt.

[0008] Preferably, an installation groove is provided on the outer wall where the bottom protective sleeve and the top protective sleeve are in contact, and a sealing ring is fixedly installed in the installation groove.

[0009] Preferably, the heat insulation layer is a heat insulation paint layer, and the heat insulation layer is sprayed on the outer wall of the protective sleeve base.

[0010] Preferably, the first corrosion-resistant layer is made of fluororubber, and the first corrosion-resistant layer is bonded to the heat-insulating layer.

[0011] Preferably, the second corrosion-resistant layer is an asphalt anti-corrosion coating, and the second corrosion-resistant layer is sprayed on the first corrosion-resistant layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] After the utility model is used for a long time, when the two protective covers outside the steel plate base are damaged and scrapped, the fastening bolts can be removed in turn to remove the two scrapped protective covers, and then replaced with new protective covers. Therefore, when the outer surface of the steel plate is damaged, there is no need to scrap the entire steel plate, and only two protective covers need to be replaced, which reduces resource waste and saves costs. The first corrosion-resistant layer and the second corrosion-resistant layer can greatly improve the corrosion resistance of the protective cover, thereby increasing the service life of the protective cover and reducing the replacement frequency of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a corrosion-resistant steel plate proposed by the utility model;

[0015] Figure 2 This is a cross-sectional side view of the overall structure of a corrosion-resistant steel plate proposed by the utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of a protective sleeve in a corrosion-resistant steel plate proposed by the utility model;

[0017] Figure 4 The utility model provides a corrosion-resistant steel plate Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1. Steel plate substrate; 2. Protective cover; 3. Protective cover substrate; 4. Heat insulation layer; 5. First corrosion-resistant layer; 6. Second corrosion-resistant layer; 7. Groove; 8. Fastening bolt; 9. Screw hole; 10. Sealing gasket; 11. Mounting groove; 12. Sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a corrosion-resistant steel plate, comprising:

[0021] A steel plate substrate 1, wherein two protective sleeves 2 are arranged outside the steel plate substrate 1, wherein the protective sleeve 2 includes a protective sleeve substrate 3, wherein a heat insulation layer 4 is arranged on the outer wall of the protective sleeve substrate 3, wherein a first corrosion-resistant layer 5 is arranged on the outer wall of the heat insulation layer 4, wherein a second corrosion-resistant layer 6 is arranged on the outer wall of the first corrosion-resistant layer 5, wherein the two protective sleeves 2 are symmetrically arranged on the steel plate substrate 1 from top to bottom, wherein grooves 7 are arranged at the four corners of the protective sleeves 2, wherein fastening bolts 8 are installed in the grooves 7, wherein four screw holes 9 are arranged on the top wall and the bottom wall of the steel plate substrate 1, wherein the fastening bolts 8 are threadedly connected in the screw holes 9.

[0022] The fastening bolt 8 is sleeved with a sealing gasket 10, which can improve the sealing performance of the fastening bolt 8 after installation.

[0023] An installation groove 11 is provided on the outer wall where the bottom protective sleeve 2 and the top protective sleeve 2 are in contact. A sealing ring 12 is fixedly installed in the installation groove 11. The sealing ring 12 can improve the sealing performance when the two protective sleeves 2 are connected.

[0024] The thermal insulation layer 4 is a thermal insulation paint layer, which is sprayed on the outer wall of the protective sleeve substrate 3 to achieve thermal insulation effect, thereby preventing external high temperature from being transmitted to the steel plate substrate 1, causing metal fatigue of the steel plate substrate 1, and improving the service life of the steel plate substrate 1.

[0025] The first corrosion-resistant layer 5 is made of fluororubber. The first corrosion-resistant layer 5 is bonded to the heat-insulating layer 4 . The first corrosion-resistant layer 5 can improve the corrosion resistance of the protective sleeve 2 .

[0026] The second corrosion-resistant layer 6 is an asphalt anti-corrosion coating, and the second corrosion-resistant layer 6 is sprayed on the first corrosion-resistant layer 5 . The second corrosion-resistant layer can further improve the corrosion resistance of the protective sleeve 2 .

[0027] Working principle: After long-term use, when the two protective covers 2 outside the steel plate substrate 1 are damaged and scrapped, the fastening bolts 8 can be removed in turn to remove the two scrapped protective covers 2 and replace them with new protective covers 2. As a result, when the outer surface of the steel plate is damaged, there is no need to scrap the entire steel plate, but only need to replace the two protective covers 2, which reduces resource waste and saves costs. The first corrosion-resistant layer 5 and the second corrosion-resistant layer 6 can greatly improve the corrosion resistance of the protective cover 2, thereby increasing the service life of the protective cover 2 and reducing the replacement frequency of the protective cover 2.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant steel plate, characterized in that: include: A steel plate substrate (1), wherein two protective sleeves (2) are arranged outside the steel plate substrate (1), wherein the protective sleeve (2) comprises a protective sleeve substrate (3), wherein a heat insulating layer (4) is arranged on the outer wall of the protective sleeve substrate (3), wherein a first corrosion resistant layer (5) is arranged on the outer wall of the heat insulating layer (4), wherein a second corrosion resistant layer (6) is arranged on the outer wall of the first corrosion resistant layer (5), wherein the two protective sleeves (2) are symmetrically arranged on the steel plate substrate (1) in an upper and lower direction, wherein grooves (7) are provided at the four corners of the protective sleeve (2), wherein fastening bolts (8) are installed in the grooves (7), wherein four screw holes (9) are provided on the top wall and the bottom wall of the steel plate substrate (1), wherein the fastening bolts (8) are threadedly connected in the screw holes (9).

2. The corrosion-resistant steel plate according to claim 1, characterized in that: A sealing gasket (10) is sleeved on the fastening bolt (8).

3. The corrosion-resistant steel plate according to claim 1, characterized in that: An installation groove (11) is provided on the outer wall of the bottom side protective sleeve (2) which is in contact with the top side protective sleeve (2), and a sealing ring (12) is fixedly installed in the installation groove (11).

4. The corrosion-resistant steel plate according to claim 1, characterized in that: The heat insulation layer (4) is a heat insulation paint layer, and the heat insulation layer (4) is sprayed on the outer wall of the protective sleeve base (3).

5. The corrosion-resistant steel plate according to claim 1, characterized in that: The first corrosion-resistant layer (5) is made of fluororubber, and the first corrosion-resistant layer (5) is bonded to the heat-insulating layer (4).

6. The corrosion-resistant steel plate according to claim 1, characterized in that: The second corrosion-resistant layer (6) is an asphalt anti-corrosion coating, and the second corrosion-resistant layer (6) is sprayed on the first corrosion-resistant layer (5).

Images