CN210030533U - Surface coating of special-shaped surface structure - Google Patents
Surface coating of special-shaped surface structure Download PDFInfo
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- CN210030533U CN210030533U CN201920403166.6U CN201920403166U CN210030533U CN 210030533 U CN210030533 U CN 210030533U CN 201920403166 U CN201920403166 U CN 201920403166U CN 210030533 U CN210030533 U CN 210030533U
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Abstract
A surface coating with a special-shaped surface structure comprises a special-shaped surface structure base layer, a surface repair atomic ash layer and a protective layer; the surface of the special-shaped surface structure base layer is provided with inward pits and/or outward bulges; the surface repair atomic ash layer comprises a conductive network formed by metal-plated glass fibers and metal zinc powder; metallic zinc powder is dispersed in the conductive grid. The utility model discloses an add the metal-plated glass fiber, the intensity that makes putty has obtained great improvement, the electrically conductive network that metal-plated glass fiber formed simultaneously, the low potential in special-shaped surface structure basic unit base member that compares of atomic ash has been guaranteed through adding metal zinc powder, it is anticorrosive to realize further cathodic protection after the coating fracture, and the volume expansion that the corruption oxidation of dependence metal leads to remedies the crack, this coating product is particularly useful for the restoration engineering of steel construction spare under the high humidity, the marine nature corrosive environment of polysulfide.
Description
Technical Field
The utility model relates to a coating field especially relates to a surface coating of dysmorphism surface structure.
Background
In a high-corrosion environment, the phenomena of corrosion pits and the like easily occur on the irregular or planar surface of the steel structure surface, and when the coating is recoated, the coating is easily cracked again due to uneven thickness at the pits. Therefore, in the actual anticorrosion treatment, before the anticorrosion coating is coated, the surface of the steel structure needs to be coated with putty and filled and carefully polished to form a smooth surface.
The acid-alcohol putty, epoxy putty, atomic ash and the like which are commonly used at present mainly fill up pits, and have no electrochemical protection performance. Once infiltrated with the corrosive liquid, the metal of the bottom will oxidize and corrode, resulting in rapid corrosion failure of the area.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a surface coating of dysmorphism surface structure solves the problem that prior art exists.
In order to realize the purpose, the following technical scheme is adopted:
a surface coating with a special-shaped surface structure comprises a special-shaped surface structure base layer, a surface repair atomic ash layer and a protective layer; the surface of the special-shaped surface structure base layer is provided with inward pits and/or outward bulges; the surface repair atomic ash layer comprises a conductive network formed by metal-plated glass fibers and metal zinc powder; the metallic zinc powder is dispersed in the conductive grid.
Preferably, the special-shaped surface structure base layer is a steel structural member.
Preferably, the protective layer is a paint protective layer.
Preferably, the metal-plated glass fiber is one of zinc-plated glass fiber and copper-plated glass fiber.
Preferably, the length of the metallized glass fiber is 10 to 28 micrometers.
Preferably, the metal zinc powder is needle-sheet micron-sized zinc powder, and the length-diameter ratio of the needle-sheet micron-sized zinc powder is 2-6.
Compared with the prior art, the utility model provides a dysmorphism surface structure's surface coating had both had the benefit of traditional atomic ash and had leveled the function, also can further provide cathodic protection and rely on the volume expansion that the corruption oxidation of metal leads to compensate the crack to the steel construction surface under the condition that surface coating became invalid, grey layer fracture. The utility model discloses an add plating metal glass fiber, make the intensity of putty obtain great improvement, the electrically conductive network that plating metal glass fiber formed simultaneously, through adding the low potential that metal zinc powder has guaranteed comparing in the steel construction base member of atomic ash, it is anticorrosive to realize the cathodic protection after the coating fracture to rely on the volume expansion that the corruption oxidation of metal leads to compensate the crack, this product is particularly useful for the restoration engineering of steel construction spare under the marine nature corrosive environment of high humidity, polysulfide.
Drawings
FIG. 1 is a schematic view of the structure of the surface coating of the corrosion pits on the surface of the steel structure of the present invention;
fig. 2 is a schematic view of the structure of the surface coating layer on the surface of the steel structure with the raised bolts of the present invention.
Detailed Description
In order to make the purpose and technical solution of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings.
Example 1
As shown in figure 1, the surface coating of the special-shaped surface structure comprises a steel structural member 1 with inward pits on the surface, a surface repairing atomic ash layer and a paint protective layer 2.
The surface repair atomic ash layer comprises a conductive network formed by galvanized glass fibers 3 and metal zinc powder 4; the length of the galvanized glass fiber 3 is 10-28 microns. The metallic zinc powder 4 is needle-shaped micron-sized zinc powder, and the length-diameter ratio of the needle-shaped micron-sized zinc powder is 2-6.
The needle-shaped micron-sized zinc powder is dispersed in the conductive network formed by the galvanized glass fiber 3. The surface repair atomic ash layer contains metal zinc powder 4, so that the low potential of the atomic ash compared with that of a steel structure matrix is ensured, the cathodic protection and corrosion prevention after the coating cracks are realized, and the cracks are compensated by means of volume expansion caused by corrosion and oxidation of metal.
Example 2
As shown in figure 2, the surface coating of the special-shaped surface structure comprises a steel structural part 5 with outward bulges on the surface, a surface repairing putty layer and a paint protective layer 2. The surface repairing putty is uniformly coated at the bolt end to form a continuous smooth surface, and then a paint protective layer is coated, so that the hidden danger of stress cracking caused by irregular surfaces is eliminated, the weather resistance of the paint can be obviously improved, and the attractiveness is improved.
The surface repair atomic ash layer comprises a conductive network formed by copper-plated glass fiber 6 and metal zinc powder 4; the length of the copper-coated glass fiber 6 is 10-28 microns. The metallic zinc powder 4 is needle-shaped micron-sized zinc powder, and the length-diameter ratio of the needle-shaped micron-sized zinc powder is 2-6. The needle-shaped micron-sized zinc powder is dispersed in the conductive network formed by the copper-plated glass fiber 6. The surface repair atomic ash layer contains metal zinc powder 4, so that the low potential of the atomic ash compared with that of a steel structure matrix is ensured, the cathodic protection and corrosion prevention after the coating cracks are realized, and the cracks are compensated by means of volume expansion caused by corrosion and oxidation of metal.
Claims (6)
1. The surface coating of the special-shaped surface structure is characterized by comprising a special-shaped surface structure base layer, a surface repairing atomic ash layer and a protective layer; the surface of the special-shaped surface structure base layer is provided with inward pits and/or outward bulges; the surface repair atomic ash layer comprises a conductive network formed by metal-plated glass fibers and metal zinc powder; the metallic zinc powder is dispersed in the conductive network.
2. The surface coating of the profiled surface structure as claimed in claim 1, wherein the profiled surface structure base layer is a steel structural member.
3. A surface coating of a profiled surface structure as claimed in claim 1, characterized in that the protective layer is a protective layer of paint.
4. The surface coating of a profiled surface structure as claimed in claim 1, wherein the metallized glass fibers are one of galvanized glass fibers and copper-plated glass fibers.
5. The surface coating of a profiled surface structure as claimed in claim 1, characterized in that the length of the metallized glass fibers is 10-28 micrometers.
6. A surface coating with a profiled surface structure as defined in claim 1, characterized in that the metallic zinc powder is needle-flake zinc powder with an aspect ratio of 2-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403166.6U CN210030533U (en) | 2019-03-28 | 2019-03-28 | Surface coating of special-shaped surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403166.6U CN210030533U (en) | 2019-03-28 | 2019-03-28 | Surface coating of special-shaped surface structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210030533U true CN210030533U (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920403166.6U Active CN210030533U (en) | 2019-03-28 | 2019-03-28 | Surface coating of special-shaped surface structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210030533U (en) |
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2019
- 2019-03-28 CN CN201920403166.6U patent/CN210030533U/en active Active
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