阅读说明：本技术 一种金属材料、表面处理剂及表面处理方法 (Metal material, surface treating agent and surface treating method ) 是由 王�琦 李智锋 李成信 姚家前 潘叶江 于 2020-04-30 设计创作，主要内容包括：本发明提出了一种金属材料、表面处理剂及表面处理方法,包括金属基材和至少一层通过表面处理剂涂覆在所述金属基材表面形成的金属表面处理膜,所述金属表面处理膜包括硅,还包括锆、铌、碳、氮、氧、硼、锂中的至少两种,其中所述金属表面处理膜中硅的重量百分比含量为2-15％。具有亲水易清洁特性和耐高温的特性。(The invention provides a metal material, a surface treatment agent and a surface treatment method, which comprise a metal base material and at least one layer of metal surface treatment film formed by coating the surface of the metal base material with the surface treatment agent, wherein the metal surface treatment film comprises silicon and at least two of zirconium, niobium, carbon, nitrogen, oxygen, boron and lithium, and the weight percentage content of the silicon in the metal surface treatment film is 2-15%. Has the characteristics of hydrophilicity, easy cleaning and high temperature resistance.)

1. A metal material is characterized by comprising a metal substrate and at least one metal surface treatment film on the surface of the metal substrate, wherein the metal surface treatment film comprises silicon and at least two of zirconium, niobium, carbon, nitrogen, oxygen, boron and lithium, and the weight percentage of the silicon in the metal surface treatment film is 2-15%.

2. The metallic material as defined in claim 1, wherein each of said metallic surface treatment films has a film thickness of less than 3 μm and a transparent appearance.

3. A metallic material as claimed in claim 1, wherein the electrical resistance of the surface of the metallic material is greater than the electrical resistance of the metallic substrate.

4. A metallic material as claimed in claim 1 wherein the metallic material surface has a contact angle with water of less than 10 degrees.

5. A surface treatment agent applied to a metal material according to any one of claims 1 to 4, wherein the surface treatment agent is coated on the surface of the metal substrate to form the metal surface treatment film, the surface treatment agent comprises a conversion solution, the conversion solution comprises modified nano silica sol and water, the conversion solution further comprises at least one of fatty compound, chloride, metal alkyl compound and organic metal complex, and the water is 8 to 20 weight percent.

6. The surface treating agent according to claim 5, wherein the metal surface treating agent has a pH of 10 to 12.

7. A surface treatment method of a metal material, applied to a metal material according to any one of claims 1 to 4, comprising the steps of:

s1, pretreating the metal base material;

s2, performing surface treatment on the metal substrate to form a metal surface treatment film on the surface of the metal substrate;

s3, natural surface drying is carried out at normal temperature;

s4, high-temperature curing;

s5, judging whether the surface treatment of the metal base material is qualified;

s6, if the surface treatment of the metal base material is qualified, judging whether to perform the surface treatment on the surface of the metal material which has been subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material;

s7, if the surface of the metal material having been subjected to the surface treatment is not to be subjected to the surface treatment again, the surface treatment is completed.

8. The method for surface treatment of a metal material according to claim 7, wherein the step of pre-treating the metal substrate is specifically: removing oil at high temperature; electrolytic degreasing; washing with water; electrolyzing the acid; washing with water; pre-plating nickel; and (5) washing with pure water.

9. The method for surface treatment of a metal material according to claim 7, wherein the step of pre-treating the metal substrate is specifically: degreasing and deoiling the metal substrate; ultrasonic water washing; pure water washing and drying.

10. The method for surface treatment of a metal material according to claim 7, wherein the step of pre-treating the metal substrate is specifically: removing oil from the metal substrate by acid; washing with water; oxidation treatment; and (5) washing with pure water.

11. The method for surface treatment of a metal material according to claim 7, wherein the step of judging whether the surface treatment of the metal material is qualified specifically comprises:

if the surface treatment of the metal material is unqualified, removing the film, and returning to the step S1 after the film is removed;

and if the surface treatment of the metal material is qualified, judging whether to carry out surface treatment again on the surface of the metal material which is subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material.

12. The method for surface treatment of metal material according to claim 7, wherein the step of determining whether to perform surface treatment again on the surface of the metal material having been subjected to surface treatment to form a multi-layer metal surface treatment film on the surface of the metal base material comprises:

if the surface treatment is carried out on the surface of the metal material which is subjected to the surface treatment, carrying out the surface treatment on the surface of the metal material which is subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material;

if the surface treatment is not to be performed on the surface of the metal material that has been subjected to the surface treatment, the surface treatment is completed.

13. The method for surface treatment of a metal material according to any one of claims 7 or 12, wherein the metal substrate is subjected to surface treatment to form a metal surface treatment film on the surface thereof, or the surface of the metal substrate which has been subjected to surface treatment is subjected to surface treatment again to form a multilayer metal surface treatment film on the surface of the metal substrate, specifically: the surface treating agent is sprayed on the surface of the metal substrate through an air pressure spray gun, or sprayed through an electrostatic spray gun, or dip-coated on the surface of the metal substrate.

Technical Field

The invention relates to the technical field of metal surface chemical treatment, in particular to a metal material, a surface treating agent and a surface treatment method.

Background

Stainless steel has been widely used in various industrial fields due to its excellent corrosion resistance and good appearance, and is more favored in the industries of kitchen electricity and small household appliances. In the past, the use pain points of stainless steel mainly focus on the aspects that the high temperature is easy to discolor and the greasy dirt is difficult to clean after long-time use. Especially in a heating scene, the stainless steel product is also influenced by various media, such as oxygen, water vapor and various seasonings, so that the service life of the stainless steel is greatly reduced, and great trouble is brought to users and consumers. Although there are many surface treatments for stainless steel, such as electroplating, brush plating, chemical plating, vapor deposition, micro-arc oxidation, etc., in practical applications, the problems of complex process flow, high cost, etc. are encountered.

Disclosure of Invention

The present invention is directed to solving, to some extent, one of the problems of the related art, and therefore an object of the present invention is to provide a metal material having characteristics of hydrophilicity, easy cleaning, and high temperature resistance.

The above purpose is realized by the following technical scheme:

a metal material comprises a metal substrate and at least one metal surface treatment film on the surface of the metal substrate, wherein the metal treatment film comprises silicon and at least two of zirconium, niobium, carbon, nitrogen, oxygen, boron and lithium, and the weight percentage of the silicon in the metal surface treatment film is 2-15%.

As a further improvement of the invention, each layer of the metal surface treatment film has a film thickness of less than 3 microns and a transparent appearance.

As a further improvement of the present invention, the electrical resistance of the surface of the metal material is greater than the electrical resistance of the metal substrate.

As a further improvement of the invention, the contact angle of the surface of the metal material and water is less than 10 degrees.

Another object of the present invention is to provide a surface treating agent,

the above object is achieved by the following method:

a surface treatment agent applied to one of the above-mentioned metal materials, wherein the surface treatment agent is coated on the surface of the metal substrate to form the metal surface treatment film, the surface treatment agent comprises a conversion solution, the conversion solution comprises modified nano silica sol and water, the conversion solution further comprises at least one of fatty compound, chloride, metal alkyl compound and organic metal complex, and the weight percentage content of the water is 8-20%.

As a further improvement of the invention, the pH value of the metal surface treating agent is 10-12.

A further object of the present invention is to propose a surface treatment method of a metallic material,

the above object is achieved by the following method:

a surface treatment method of a metal material, applied to one of the above-mentioned metal materials, the treatment method comprising the steps of:

s1, pretreating the metal base material;

s2, performing surface treatment on the metal substrate to form a metal surface treatment film on the surface of the metal substrate;

s3, natural surface drying is carried out at normal temperature;

s4, high-temperature curing;

s5, judging whether the surface treatment of the metal base material is qualified;

s6, if the surface treatment of the metal base material is qualified, judging whether to perform the surface treatment on the surface of the metal material which has been subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material;

s7, if the surface of the metal material having been subjected to the surface treatment is not to be subjected to the surface treatment again, the surface treatment is completed.

As a further improvement of the present invention, the step of pretreating the metal substrate specifically comprises: removing oil at high temperature; electrolytic degreasing; washing with water; electrolyzing the acid; washing with water; pre-plating nickel; and (5) washing with pure water.

As a further improvement of the present invention, the step of pretreating the metal substrate specifically comprises: degreasing and deoiling the metal substrate; ultrasonic water washing; pure water washing and drying.

As a further improvement of the present invention, the step of pretreating the metal substrate specifically comprises: removing oil from the metal substrate by acid; washing with water; oxidation treatment; and (5) washing with pure water.

As a further improvement of the invention, the step of judging whether the surface treatment of the metal material is qualified or not specifically comprises the following steps: if the surface treatment of the metal material is unqualified, removing the film, and returning to the step S1 after the film is removed; and if the surface treatment of the metal material is qualified, judging whether to carry out surface treatment again on the surface of the metal material which is subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material.

As a further improvement of the invention, the step of judging whether to carry out surface treatment on the surface of the metal material which is subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material is specifically as follows: if the surface treatment is carried out again on the surface of the metal material which is subjected to the surface treatment, carrying out the surface treatment on the surface of the metal material which is subjected to the surface treatment so as to form a multi-layer metal surface treatment film on the surface of the metal base material; if the surface treatment is not to be performed again on the surface of the metal base material that has been subjected to the surface treatment, the surface treatment is completed.

As a further improvement of the present invention, a method of surface-treating a metal base material to form a metal surface-treated film on the surface thereof, or surface-treating a surface of a metal material which has been subjected to surface treatment to form a multilayer metal surface-treated film on the surface of the metal base material is specifically: the surface treating agent is sprayed on the surface of the metal substrate through an air pressure spray gun, or sprayed through an electrostatic spray gun, or dip-coated on the surface of the metal substrate.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. the invention provides a metal material, the surface of which is provided with a metal surface treatment film, so that the corrosion resistance and high temperature resistance of the metal material are improved, and the metal material has the characteristics of hydrophilicity and easy cleaning.

2. The invention provides a surface treating agent which is coated on the surface of a metal material, so that the metal material has the properties of corrosion resistance and high temperature resistance, and has the characteristics of hydrophilicity and easiness in cleaning.

3. The invention provides a surface treatment method of a metal material, which has the advantages of simple operation process and low energy consumption, and enables the metal material to have the characteristics of hydrophilicity and easy cleaning.

Drawings

FIG. 1 is a view showing a structure of a metallic material coated with a metallic surface treatment film in an embodiment;

FIG. 2 is a structural view of a metal material coated with a two-layered metal surface treatment film in an embodiment;

FIG. 3 is a schematic view of a principle of a metal surface treatment film;

FIG. 4 is a SEM photograph of a cross section of stainless steel coated with a metal surface treatment film;

FIG. 5 is a schematic view of a metallic material applied to the inner surface of a cavity of a steaming oven;

FIG. 6 is a schematic view of a metal material applied to a cooktop;

FIG. 7 is a flowchart of a surface treatment method of a metal material according to an embodiment.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.