Waterproof coating for metal shell

Abstract

The utility model relates to the technical field of paint, and provides a waterproof coating for a metal shell, which is good in waterproof effect and capable of avoiding water vapor erosion, and comprises a base layer coated on the metal shell, a waterproof layer arranged above the base layer, and an isolating layer arranged on the waterproof layer, a plurality of evaporation rods made of quicklime materials and making contact with the waterproof layer are inserted into the isolation layer, the base layer and external water vapor are isolated through the waterproof layer, water drops generated by the water vapor are directly isolated through the isolation layer, and after the water vapor enters the waterproof layer through the isolation layer, the water drops are separated from the water drops. And the evaporation rod reacts with water to quickly generate heat so as to evaporate attached water vapor.

Description

Technical Field

[0001] The utility model relates to the technical field of coatings, in particular to a waterproof coating for a metal shell. Background Art

[0002] Coatings are widely used on the surfaces of various objects. Different effects are achieved by using different ingredients in the coating and by stacking different coatings in multiple layers. Some coatings can effectively prevent metal corrosion, while others can effectively prevent the surface of the workpiece from being scratched. Water-based coatings are coatings that use water as a solvent or as a dispersion medium. They have excellent non-stickiness and durability. Since no organic solvents are used, they are non-toxic, have no irritating odor, and will not pollute the environment. They are widely used in various fields.

[0003] Coatings are often used on the outer wall of metal casings. By spraying coatings on the outer wall of metal casings, the metal casings can obtain different appearance effects. At the same time, the metal casings can be isolated from the air through the coatings, thereby effectively preventing the metal casings from being corroded and oxidized by oxygen in the air, and effectively improving the service life of the metal casings.

[0004] Although the above-mentioned existing technology can solve the corresponding technical problems, it still has certain defects: although the existing metal shell coating can effectively isolate oxygen, if it is placed in a humid place for a long time, it is easy to cause the coating and the metal shell to fall off due to the influence of water vapor or water droplets. At the same time, water vapor can easily penetrate and enter the surface of the metal shell, which can easily cause the metal shell to rust and the waterproof effect is poor. Utility Model Content

[0005] The utility model aims to provide a metal shell waterproof coating which has good waterproof effect and can avoid water vapor erosion in view of the defects and shortcomings of the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a metal shell waterproof coating, including a base layer applied on the metal shell, a waterproof layer is arranged above the base layer, an isolation layer is arranged on the waterproof layer, and a plurality of evaporation rods made of quicklime material in contact with the waterproof layer are inserted into the isolation layer, the base layer and external water vapor are isolated by the waterproof layer, and the water droplets generated by the water vapor are directly isolated by the isolation layer, and after the water vapor enters the waterproof layer through the isolation layer, the evaporation rod reacts with water to quickly generate heat to evaporate the attached water vapor.

[0007] A further improvement is that: the isolation layer is further provided with a volatilization groove at a position corresponding to the insertion of the evaporation rod.

[0008] A further improvement is that an evaporation tank whose inner wall contacts the bottom end of the evaporation rod is provided above the waterproof layer.

[0009] A further improvement is that the waterproof layer is an acrylic waterproof coating.

[0010] A further improvement is that the isolation layer is a water-based asphalt waterproof coating.

[0011] A further improvement is that the thickness of the waterproof layer is 1.5mm-4mm.

[0012] A further improvement is that the thickness of the isolation layer is 1 mm-2.5 mm.

[0013] A further improvement is that a plurality of condensation grooves are also provided on the top surface of the isolation layer.

[0014] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: when water vapor contacts the coating, the utility model first isolates the water vapor through the isolation layer. If the isolation layer is broken by the water vapor, the water vapor is further blocked by the waterproof layer. At the same time, when the water vapor condenses into water droplets and contacts the evaporation rod, it will react with it to release a large amount of heat, thereby increasing the surface temperature of the coating, and then causing the water droplets to be evaporated by high temperature and escape outward, thereby avoiding the water droplets from adhering to the coating for a long time and causing the coating to fall off, and avoiding the metal shell from directly contacting the water droplets and causing rust, and the waterproof effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of a front view cross section of the coating of the utility model. DETAILED DESCRIPTION

[0017] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0018] See also Figure 1As shown, the technical solution adopted in this specific embodiment is: a metal shell waterproof coating, including a base layer 1 applied on the metal shell, a waterproof layer 2 is arranged above the base layer 1, the waterproof layer 2 is an acrylic waterproof coating, an isolation layer 3 is arranged on the waterproof layer 2, the isolation layer 3 is a water-based asphalt waterproof coating, and a plurality of evaporation rods 5 made of quicklime material in contact with the waterproof layer 2 are inserted into the isolation layer 3, and seven are arranged in this embodiment, the base layer 1 and the external water vapor are isolated by the waterproof layer 2, and the water droplets generated by the water vapor are directly isolated by the isolation layer 3, and after the water vapor enters the waterproof layer 2 through the isolation layer 3, the evaporation rods 5 react with water to quickly generate heat to evaporate the attached water vapor. When in use, the base layer 1 is first applied to the metal shell, and after it is dried, a evaporation rod 5 is applied above it. Apply a waterproof layer 2 made of acrylic waterproof coating material, then set an isolation layer 3 made of water-based asphalt waterproof coating material on the waterproof layer 2, and reserve a space for inserting an evaporation rod 5 through a mold. After the isolation layer 3 is dried, insert the evaporation rod 5 so that its bottom is fixedly contacted with the waterproof layer 2. When the coating is affected by water vapor, the isolation layer 3 and the waterproof layer 2 provide multiple protections against the water vapor. After the water vapor penetrates into the isolation layer 3 and condenses into water droplets, the water droplets contact the evaporation rod 5, causing a reaction between them and causing the evaporation rod 5 made of quicklime to generate a large amount of heat, thereby evaporating the water droplets that have entered again through the heat and dissipating them outward, thereby preventing the water droplets from adhering to the coating for a long time and causing the coating to fall off, and preventing the metal shell from directly contacting the water droplets and causing rust, and achieving a good waterproof effect;

[0019] The isolation layer 3 is also provided with a volatilization groove 4 at the corresponding position where the evaporation rod 5 is inserted, which is conducive to allowing the water droplets to be evaporated by heat and then dissipated to the outside more quickly;

[0020] The waterproof layer 2 is also provided with an evaporation groove 6 whose inner wall contacts the bottom of the evaporation rod 5, which is conducive to concentrating the water droplets condensed by water vapor and thus better contacting the evaporation rod 5 to generate heat;

[0021] The thickness of the waterproof layer 2 is 1.5 mm to 4 mm, which is beneficial to enhance the anti-penetration ability through a larger thickness;

[0022] The thickness of the isolation layer 3 is 1 mm to 2.5 mm, which is beneficial to enhance the water vapor intrusion resistance through thickness and is not easy to rupture when under pressure;

[0023] The top surface of the isolation layer 3 is also provided with a plurality of condensation grooves 7. In this embodiment, eight condensation grooves are provided, which are conducive to concentrating the water vapor in the condensation grooves 7 after condensation, thereby preventing the water vapor from flowing freely on the outer surface of the isolation layer 3 and penetrating into the coating.

[0024] Working principle of the utility model: when the utility model is used, firstly, a base layer 1 is applied on the metal shell, and after it is dried, a waterproof layer 2 made of acrylic waterproof coating material is applied on it, and then an isolation layer 3 made of water-based asphalt waterproof coating material is arranged on the waterproof layer 2, and a space for inserting the evaporation rod 5 is reserved through a mold, and after the isolation layer 3 is dried, the evaporation rod 5 is inserted so that its bottom is fixedly contacted with the waterproof layer 2, and when the coating is affected by water vapor, the isolation layer 3 and the waterproof layer 2 are used to provide multiple protections against the water vapor, and after the water vapor penetrates into the isolation layer 3 and condenses into water droplets, the water droplets contact the evaporation rod 5 at this time, so that a reaction occurs between them and the evaporation rod 5 made of quicklime generates a large amount of heat, and then the entered water droplets are evaporated again by the heat and dissipated outwardly, thereby avoiding the water droplets from adhering to the coating for a long time and causing the coating to fall off, and avoiding the metal shell from directly contacting the water droplets and causing rust, and the waterproof effect is good.

[0025] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0026] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A waterproof coating for a metal shell, comprising a base layer (1) applied on the metal shell, characterized in that: A waterproof layer (2) is provided above the base layer (1), an isolation layer (3) is provided on the waterproof layer (2), and a plurality of evaporation rods (5) made of quicklime material in contact with the waterproof layer (2) are inserted into the isolation layer (3). The base layer (1) and external water vapor are isolated by the waterproof layer (2), and water droplets generated by water vapor are directly isolated by the isolation layer (3). After the water vapor enters the waterproof layer (2) through the isolation layer (3), the evaporation rods (5) react with water to quickly generate heat to evaporate the attached water vapor.

2. A metal casing waterproof coating according to claim 1, characterized in that: The isolation layer (3) is also provided with a volatilization groove (4) at a position corresponding to the insertion position of the evaporation rod (5).

3. The metal casing waterproof coating according to claim 1, characterized in that: An evaporation tank (6) whose inner wall is in contact with the bottom end of the evaporation rod (5) is also provided above the waterproof layer (2).

4. The metal casing waterproof coating according to claim 1, characterized in that: The waterproof layer (2) is an acrylic waterproof coating.

5. The metal casing waterproof coating according to claim 1, characterized in that: The isolation layer (3) is a water-based asphalt waterproof coating.

6. The metal casing waterproof coating according to claim 1, characterized in that: The waterproof layer (2) has a thickness of 1.5 mm to 4 mm.

7. The metal casing waterproof coating according to claim 1, characterized in that: The thickness of the isolation layer (3) is 1 mm to 2.5 mm.

8. The metal casing waterproof coating according to claim 1, characterized in that: The top surface of the isolation layer (3) is also provided with a plurality of condensation grooves (7).

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