Insulating voltage-resistant pure epoxy powder paint coating

Abstract

The utility model relates to an insulating pressure-resistant pure epoxy powder paint coating which comprises a metal substrate, a strengthening layer is arranged on the surface of the metal substrate, a temperature-resistant layer is arranged on the surface of the strengthening layer, a pure epoxy powder layer is arranged on the surface of the temperature-resistant layer, and a pure polyester powder layer is arranged on the surface of the pure epoxy powder layer. The pure epoxy powder layer and the pure polyester powder layer are arranged at the same time, so that a formed dual-curing coating film has excellent corner coating performance, excellent corrosion resistance, high flatness and high glossiness; by arranging the insulating layer and the coating with the three-layer structure, all the layers can complement one another, the overall weather resistance is improved, the adhesive force of the base layer is enhanced, the compact insulating coating is formed by the surface coating, the bonding strength of the insulating layer is further improved, the service life of the insulating layer is further prolonged, and the use temperature and toughness of the coating are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coating structure technical field especially relates to a kind of insulation pressure-resistant pure epoxy powder coating. BACKGROUND

[0002] Epoxy paint is a kind of industrial coating that has developed very rapidly in recent years, in general, the coating containing more epoxy groups in composition is collectively referred to as epoxy paint; the main variety of epoxy paint is two-component coating, which is composed of epoxy resin and curing agent, and the coating itself has the characteristics of excellent chemical resistance and excellent mechanical properties; but the insulation of epoxy paint decreases after powdering under the action of long-term sunshine, and the corner covering property, flatness and high gloss need to be improved, therefore we design a kind of insulation pressure-resistant pure epoxy powder coating.

[0003] Patent No. CN202123047088.7 is a Chinese utility model patent, which discloses a kind of epoxy paint coating structure of pressure resistance and impact resistance, including coating structure body, the outer wall of the coating structure body is fixedly connected with reinforcing layer, the outer wall of the reinforcing layer is fixedly connected with protective layer, the outer wall of the protective layer is fixedly connected with high temperature resistant layer. The protective layer is made of barium sulfate sand material, which solves the problem of poor radiation resistance of the epoxy paint coating structure, and prolongs the service life of the epoxy paint coating structure. The epoxy paint coating structure has good radiation resistance and long service life, but the utility model has the following problems: first, it does not improve the corner covering property, flatness and high gloss of the epoxy paint, and the corner area may not be uniform and flat during spraying process; second, it does not have the function of increasing insulation. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiencies of prior art, and solves the technical problems that the insulation of existing epoxy paint decreases after powdering under the action of long-term sunshine, and the corner covering property, flatness and high gloss need to be improved by simultaneously setting pure epoxy powder layer and pure polyester powder layer, and three-layer structure insulation layer.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An insulation pressure-resistant pure epoxy powder coating, comprising a metal substrate, a strengthening layer on the surface of the metal substrate, a temperature-resistant layer on the surface of the strengthening layer, a pure epoxy powder layer on the surface of the temperature-resistant layer, and a pure polyester powder layer on the surface of the pure epoxy powder layer.

[0007] As a preferred embodiment, the surface of the pure polyester powder layer is provided with an insulation layer, which comprises a base layer, an intermediate layer and a surface layer.

[0008] As a kind of preferred, the substrate layer covers the surface of the pure polyester powder layer, the intermediate layer is arranged between the substrate layer and surface layer, the substrate layer is aluminum oxide layer, the intermediate layer is magnesium oxide layer, and the surface layer is insulating paint layer.

[0009] As a kind of preferred, sand blasting layer and phosphating layer are arranged between the metal substrate and the reinforcing layer, the sand blasting layer covers the surface of the metal substrate, and the phosphating layer covers the surface of the sand blasting layer.

[0010] As a kind of preferred, the pure epoxy powder layer is a high-coating low-flow layer, and the flow is 19-25 mm, and the pure polyester powder layer is a high-gloss high-flow layer, and the flow is greater than 25 mm and less than 28 mm.

[0011] As a kind of preferred, the reinforcing layer is a glass fiber material layer, and the temperature-resistant layer is a polytetrafluoroethylene material layer.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) in the utility model, by setting pure epoxy powder layer and pure polyester powder layer, the double solidification coating film formed has excellent corner covering performance, excellent corrosion resistance and high flatness and high gloss.

[0014] (2) in the utility model, by setting the insulating layer, the three-layer structure coating, the layers can complement each other, improve the overall weather resistance, the substrate layer enhances the adhesion, and the surface layer coating is used to form a dense insulating coating, further improve the bonding strength and life of the insulating layer, and can work for a long time under extra-high voltage working condition, improve the use temperature and toughness of the coating.

[0015] (3) in the utility model, by setting sand blasting layer and phosphating layer, not only improve the surface roughness of the metal substrate, improve the adhesion and corrosion resistance of the coating, but also clean the surface and improve the decorative effect.

[0016] In summary, the utility model has the advantages of simple structure, high insulation, high corner covering and high gloss, and is especially suitable for coating structure technical field. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the following described drawings are only some embodiments of the utility model, and for ordinary skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0018] Fig. 1It is a whole section structure schematic diagram of the insulating pressure-resistant pure epoxy powder coating.

[0019] Fig. 2 It is a section structure schematic diagram of the insulating layer part.

[0020] Fig. 3 It is a section structure schematic diagram of the sandblasted layer part and the phosphating layer part. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely explained below with reference to the drawings.

[0022] Embodiment one

[0023] As Figs. 1 to 3 shown, the utility model provides a kind of insulating pressure-resistant pure epoxy powder coating, including metal substrate 1, the surface of the metal substrate 1 is equipped with reinforcing layer 2, reinforcing layer 2 is equipped with temperature-resistant layer 3 on the surface, solve the traditional coating can make coating surface dry slow, high temperature resistance is poor, easy to make the erosion of whole coating high temperature corrosion medium, make that coating protection performance is poor, reached can make coating surface dry rapidly, and can have high-performance high temperature resistance effect, can make whole coating prevent the erosion of high temperature corrosion medium, make that coating have better protection performance, the surface of the temperature-resistant layer 3 is equipped with pure epoxy powder layer 4, the surface of the pure epoxy powder layer 4 is equipped with pure polyester powder layer 5, with pure epoxy powder layer 4 cooperation is used, the double solidification coating film formed has excellent corner covering performance, excellent corrosion resistance and high flatness and high gloss.

[0024] Further, as Fig. 2 shown, the surface of the pure polyester powder layer 5 is equipped with insulating layer 6, and the insulating layer 6 includes base layer 61, intermediate layer 62 and surface layer 63, the coating of three-layer structure, each layer can complement each other, improve the weather resistance of whole, improve the bonding strength and life of insulating layer 6, improve the use temperature and toughness of coating.

[0025] Further, the base layer 61 is covered on the surface of the pure polyester powder layer 5, the intermediate layer 62 is arranged between the base layer 61 and the surface layer 63, the base layer 61 is an aluminum oxide layer, the intermediate layer 62 is a magnesium oxide layer, and the surface layer 63 is an insulating paint layer, which is composed of a base material, a flame retardant, a curing agent, a pigment filler and a solvent, etc., has good electrochemical properties, thermal properties, mechanical properties and chemical properties, is mostly varnish, also has colored paint, the base layer 61 increases the adhesion of the insulating layer 6 on the pure polyester powder layer 5, so that the connection is more compact and not easy to separate, and the surface layer 63 forms a dense insulating coating on the surface to ensure that the coating surface has good insulation effect.

[0026] Further, as shown in Fig. 3 Further, the metal base plate 1 and the reinforcing layer 2 are provided with a sand blasting layer 11 and a phosphating layer 12, the sand blasting layer 11 is covered on the surface of the metal base plate 1, and the phosphating layer 12 is covered on the surface of the sand blasting layer 11, which not only improves the surface roughness of the metal base plate, improves the adhesion of the coating and the corrosion resistance, but also plays a role of cleaning the surface and improving the decoration.

[0027] Further, the pure epoxy powder layer 4 is a high-coating and low-flow layer, the flow is 19-25 mm, and the edge, corner, hole and other parts of the metal base plate 1 are coated with high-coating and low-flow pure epoxy powder, so that the coating is ensured to be in place, and the pure polyester powder layer 5 is a high-gloss and high-flow layer, the flow is greater than 25 mm and less than 28 mm, the flow of the high-flow pure polyester powder is good, the coating surface is flat, and the gloss is good.

[0028] Further, the reinforcing layer 2 is a glass fiber material layer made of glass fiber material, which has good insulation, high heat resistance, good corrosion resistance and high mechanical strength, and solves the problem of poor structural strength of the traditional epoxy paint coating, and the temperature-resistant layer 3 is a polytetrafluoroethylene material layer made of polytetrafluoroethylene material, the temperature-resistant layer 3 can make the coating surface dry quickly, and can have high-performance high-temperature resistance, and can prevent the whole coating from being eroded by high-temperature corrosion medium, so that the coating has better protection performance.

[0029] Working process: first, the metal base plate 1 is subjected to sand blasting treatment to form a sand blasting layer 11, then oil removal and degreasing are carried out, and phosphating treatment is carried out to form a phosphating layer 12; further, glass fiber material is sprayed on the surface of the phosphating layer 12 to form a reinforcing layer 2 to reinforce the coating structure; further, polytetrafluoroethylene material is sprayed on the surface of the reinforcing layer 2 to form a temperature-resistant layer 3 to increase the high-temperature protection; further, the pure epoxy powder layer 4 is coated on the surface of the temperature-resistant layer 3, and the pure polyester powder layer 5 is coated after drying; further, the insulating layer 6 is coated on the surface of the pure polyester powder layer 5.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "front and back", "left and right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation of the application.

[0031] Of course in the technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements that can be easily thought of by those skilled in the art under the technical hints of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An insulating voltage-resistant pure epoxy powder coating layer, characterized by: The metal substrate (1) is provided with a reinforcing layer (2), the surface of the reinforcing layer (2) is provided with a temperature-resistant layer (3), the surface of the temperature-resistant layer (3) is provided with a pure epoxy powder layer (4), and the surface of the pure epoxy powder layer (4) is provided with a pure polyester powder layer (5).

2. The insulating and voltage resistant pure epoxy powder coating layer according to claim 1, characterized in that, The surface of the pure polyester powder layer (5) is provided with an insulating layer (6), and the insulating layer (6) comprises a base layer (61), an intermediate layer (62) and a surface layer (63).

3. The insulating and voltage resistant pure epoxy powder coating layer according to claim 2, characterized in that, The base layer (61) covers the surface of the pure polyester powder layer (5), the intermediate layer (62) is arranged between the base layer (61) and the surface layer (63), the base layer (61) is an aluminum oxide layer, the intermediate layer (62) is a magnesium oxide layer, and the surface layer (63) is an insulating paint layer.

4. The insulating and voltage withstanding pure epoxy powder coating layer according to claim 1, characterized in that, A sandblasting layer (11) and a phosphating layer (12) are arranged between the metal substrate (1) and the reinforcing layer (2), the sandblasting layer (11) covers the surface of the metal substrate (1), and the phosphating layer (12) covers the surface of the sandblasting layer (11).

5. The insulating and voltage withstanding pure epoxy powder coating layer according to claim 1, characterized in that, The pure epoxy powder layer (4) is a high-coating low-flowability layer, and the flowability is 19-25 mm; and the pure polyester powder layer (5) is a high-gloss high-flowability layer, and the flowability is greater than 25 mm and less than 28 mm.

6. The insulating and voltage withstanding pure epoxy powder coating layer according to claim 1, characterized in that, The reinforcing layer (2) is a glass fiber material layer, and the temperature-resistant layer (3) is a polytetrafluoroethylene material layer.

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