Metal spraying material and preparation method and use method thereof

Abstract

The present invention discloses a metal spraying material and a preparation method and a use method thereof, which mainly relate to the technical field of metal surface treatment. The present invention crushes ultra-high molecular weight polyethylene into ultra-high molecular weight polyethylene micropowders of more than 300 meshes; then mixes the fusible inorganic ultra-fine powder into the ultra-high molecular weight polyethylene micropowders of more than 300 meshes and rolls them, the ratio of the two being 1:1, and pressurizing is performed by a pressurizing mechanism at the same time, and a porous ultra-high micropowder is obtained through secondary crushing and purification; finally, the porous ultra-high micropowder and the epoxy resin micropowder of more than 400 meshes are ultrasonically mixed in a ratio of 4:6 to obtain a primer powder. The beneficial effects of the present invention are: solving the problem that organic polymer materials cannot be adsorbed on the metal surface for a long time, and improving the efficiency of anti-corrosion treatment of metal workpieces.

Description

Technical Field

[0001] The invention relates to the technical field of metal surface treatment, in particular to a metal spraying material and a preparation method and a use method thereof. Background Art

[0002] Metal surface spraying technology refers to the process of using organic polymer materials to form a coating of a certain thickness on the surface of the workpiece through a certain process method. The general purpose of spraying on the metal surface is to protect the metal or perform insulation treatment, thereby playing the role of anti-fatigue, anti-ultraviolet, self-lubricating, and anti-corrosion, extending the service life of the workpiece; at the same time, it plays a certain decorative role, but generally organic polymer materials with anti-corrosion and anti-oxidation functions are not easy to adsorb on the workpiece, making it easy for the sprayed material to fall off the metal workpiece, which reduces the service life of the metal workpiece to a certain extent. Summary of the invention

[0003] The purpose of the present invention is to provide a metal spraying material and a preparation method and a use method thereof, so as to solve the problem that organic polymer materials cannot be adsorbed on the metal surface for a long time and to increase the service life of metal workpieces.

[0004] In order to achieve the above-mentioned purpose, the invention is implemented through the following technical solutions:

[0005] A method for preparing a metal spraying material comprises the following steps:

[0006] S1: providing primer powder and ultra-high molecular weight polyethylene; the primer powder comprises the following raw materials in parts by weight: 20 parts of ultra-high molecular weight polyethylene, 20 parts of fusible inorganic ultrafine powder, and 60 parts of epoxy resin micropowder;

[0007] S2: crushing the ultra-high molecular weight polyethylene into ultra-high molecular weight polyethylene powder with a size of more than 300 mesh;

[0008] S3: Mix the fusible inorganic ultrafine powder into the ultra-high molecular weight polyethylene powder with a mesh size of 300 or more and crush them in a ratio of 1:1. At the same time, a pressurizing mechanism is used for pressurization, and a porous ultrafine powder is obtained through secondary crushing and purification.

[0009] S4: Ultrasonic mixing of porous ultra-high micro powder and epoxy resin micro powder with a mesh size of 400 or more in a ratio of 4:6 to obtain a primer powder.

[0010] A metal spraying material is prepared by the preparation method of the metal spraying material according to claim 1.

[0011] A method for spraying a metal spraying material comprises the following steps:

[0012] S1: providing a metal workpiece, and ultra-high molecular weight polyethylene powder and primer powder prepared by the method for preparing a metal spraying material as claimed in claim 1;

[0013] S2: Grind, degrease and rust the surface of the metal workpiece, and heat it to 180 degrees using a heating mechanism;

[0014] S3: Use a spraying tool to evenly spray the primer powder on the metal surface. After the coating thickness reaches 50μm, it is then soaked in ultra-high molecular weight polyethylene micropowder and baked in an oven at 210° for 20 minutes to finally achieve a metal workpiece with an ultra-high molecular weight coating.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention preheats the workpiece and sprays the primer on the metal surface, so that the epoxy resin in the primer powder melts and solidifies first, thereby forming a mixture of a bottom epoxy resin and an upper ultra-high molecular polyethylene on the surface of the metal workpiece, so that the bottom epoxy resin is adsorbed on the surface of the metal, and the outer ultra-high molecular polyethylene wraps the metal inside, thereby increasing the service life of the metal workpiece;

[0017] 2. Then, immerse the workpiece in the ultra-high molecular weight polyethylene powder and bake it in an oven at 210° for 20 minutes to dissolve the soluble inorganic ultra-high micropowder in the primer powder. The ultra-high molecular weight polyethylene powder floats on the upper layer of the soluble inorganic ultra-high micropowder, so that the ultra-high molecular weight polyethylene powder wraps the workpiece, better protects the metal surface, and plays a role in anti-fatigue, anti-ultraviolet, self-lubricating and anti-corrosion; at the same time, the problem that the ultra-high molecular weight polyethylene powder is not easy to adsorb on the surface of the metal workpiece is solved, so that the spray material can adhere to the surface of the metal workpiece for a long time, thereby increasing the service life of the metal workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a flow chart of the preparation method of the metal spraying material of the present invention;

[0019] Attached Figure 2 A flow chart of a method for using the metal spraying material of the present invention;

[0020] Attached Figure 3 It is a schematic diagram of step 4 of the method for preparing the metal spraying material of the present invention;

[0021] Attached Figure 4 A schematic diagram of step 3 of the method for using the metal spraying material of the present invention;

[0022] 11. Fusible inorganic ultrafine powder; 12. Epoxy resin powder; 13. Ultra-high molecular weight polyethylene powder; 14. Ultra-high powder; 15. Metal workpieces. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0024] A method for preparing a metal spraying material, such as Figure 1 and Figure 3 As shown, the following steps are included:

[0025] S1: Provide primer powder and ultra-high molecular weight polyethylene. Use the primer powder to allow the ultra-high molecular weight polyethylene powder 13 to adhere to the surface of the metal workpiece 15, so that the spray material can adhere to the surface of the metal workpiece 15 for a long time, thereby increasing the service life of the metal workpiece 15. The primer powder includes the following raw materials in parts by mass: 20 parts of ultra-high molecular weight polyethylene, 20 parts of fusible inorganic ultra-fine powder 11, and 60 parts of epoxy resin powder 12. The ultra-high molecular weight polyethylene material is used because it has excellent anti-fatigue, anti-ultraviolet, self-lubricating, and anti-corrosion properties, and can better protect the metal. At the same time, its price is cheaper than Teflon, which can reduce the cost of spray materials. Use The fusible inorganic ultrafine powder 11 material increases the adhesion between the ultrahigh molecular weight polyethylene and the epoxy resin micropowder 12; the epoxy resin micropowder 12 is used to make the spraying material easily adsorbed on the surface of the metal workpiece 15, ensuring that the spraying material and the surface of the metal workpiece 15 adhere to each other for a long time, thereby increasing the service life of the metal workpiece 15. The proportion of the epoxy resin micropowder 12 is higher than that of the porous ultrafine powder 14 formed by mixing the ultrahigh molecular weight polyethylene and the fusible inorganic ultrafine powder 11, so as to allow the epoxy resin micropowder 12 to wrap the porous ultrafine powder 14, thereby avoiding direct contact between part of the porous ultrafine powder 14 and the metal surface, and ensuring that each position of the metal workpiece 15 and the coating have good adsorption;

[0026] S2: Mixing the fusible inorganic ultrafine powder 11 into the ultrahigh molecular weight polyethylene powder 13 with a mesh size of 300 or more and rolling them, the ratio of the two being 1:1, and applying pressure using a pressurizing mechanism, thereby facilitating the full fusion of the ultrahigh molecular weight polyethylene powder 13 and the fusible inorganic ultrafine powder 11; and obtaining the porous ultrahigh micropowder 14 through secondary crushing and purification, so that the epoxy resin is fused into the pores of the porous ultrahigh micropowder 14, thereby increasing the adhesion between the epoxy resin and the porous ultrahigh micropowder 14;

[0027] S3: mixing the fusible inorganic ultrafine powder 11 into the ultrahigh molecular weight polyethylene powder 13 with a mesh size of 300 or more and rolling them in a ratio of 1:1, and applying pressure using a pressurizing mechanism, and performing secondary crushing and purification to obtain a porous ultrahigh molecular weight polyethylene powder 14;

[0028] S4: Ultrasonic mixing of porous ultra-fine powder 14 and epoxy resin powder 12 with a size of 400 or larger in a ratio of 4:6 is performed to obtain a primer powder, so that the epoxy resin powder 12 completely wraps the porous ultra-fine powder 14 . The added epoxy resin makes it easier for the spraying material to be adsorbed on the metal surface, thereby increasing the service life of the metal workpiece 15 .

[0029] Based on the above-mentioned method for preparing the metal spraying material, the present invention also provides a metal spraying material prepared by the above-mentioned method for preparing the metal spraying material.

[0030] Further, such as Figure 2 and Figure 4 As shown, the present invention provides a method for spraying a metal spraying material, comprising the following steps:

[0031] S1: providing a metal workpiece 15, and an ultra-high molecular weight polyethylene powder 13 and a primer powder prepared by the method for preparing a metal spraying material as claimed in claim 1;

[0032] S2: Grinding, degreasing and derusting the surface of the metal workpiece 15, and heating it to 180 degrees using a heating mechanism. Since the melting point of epoxy resin is higher than that of molecular weight polyethylene, the epoxy resin on the primer powder melts first and is at the bottom layer of the spraying material, so that the epoxy resin is better adsorbed on the surface of the metal workpiece 15, and the spraying material is easily adsorbed on the metal surface, thereby increasing the service life of the metal workpiece 15;

[0033] S3: Use a spraying tool to evenly spray the primer powder on the metal surface. After the coating thickness reaches 50μm, the primer powder is fully adhered to the surface of the metal workpiece 15, which is convenient for the ultra-high molecular weight polyethylene powder 13 to be adsorbed on its surface, thereby improving the effect of the spraying treatment of the metal workpiece 15. At the same time, since the epoxy resin is melted and solidified first, a mixture of a bottom epoxy resin and an upper ultra-high molecular weight polyethylene is formed on the surface of the metal workpiece 15, so that the bottom epoxy resin is adsorbed on the surface of the metal, and the outer ultra-high molecular weight polyethylene wraps the metal inside, thereby increasing the service life of the metal workpiece 15; then, the workpiece is immersed in the ultra-high molecular weight polyethylene powder 13, and baked in an oven at 210° for 20 minutes, so that the soluble inorganic ultra-high micropowder 14 in the primer powder is dissolved, and the ultra-high molecular weight polyethylene powder 13 floats on the upper layer of the soluble inorganic ultra-high micropowder 14, which better protects the metal surface and plays a role in anti-fatigue, anti-ultraviolet, self-lubricating and anti-corrosion.

[0034] Example 1

[0035] A method for preparing a metal spraying material, such as Figure 1 and Figure 3As shown, the fusible inorganic ultrafine powder 11 is first mixed into the ultrahigh molecular weight polyethylene powder 13 with a mesh size of 300 or more and rolled, the ratio of the two being 1:1, and a pressurizing mechanism is used to apply pressure, thereby facilitating the full fusion of the ultrahigh molecular weight polyethylene powder 13 and the fusible inorganic ultrafine powder 11; and a porous ultrafine powder 14 is obtained by secondary crushing and purification, so that the epoxy resin is fused into the pores of the porous ultrafine powder 14, thereby increasing the adhesion between the epoxy resin and the porous ultrafine powder 14;

[0036] Then, the fusible inorganic ultrafine powder 11 is mixed with the ultrahigh molecular weight polyethylene powder 13 with a mesh size of 300 or more and rolled, the ratio of the two being 1:1, and a pressurizing mechanism is used for pressurization, and a porous ultrahigh micro powder 14 is obtained after secondary crushing and purification;

[0037] Finally, the porous ultra-high micro powder 14 and the epoxy resin micro powder 12 with a size of 400 mesh or more are ultrasonically mixed in a ratio of 4:6 to obtain the primer powder.

[0038] Example 2

[0039] The present invention provides a method for spraying a metal spraying material, such as Figure 2 and Figure 4 As shown, after the metal spraying material is prepared by the preparation method of the metal spraying material, the surface of the metal workpiece 15 is first polished, degreased and derusted, and heated to 180 degrees using a heating mechanism. Since the melting point of epoxy resin is higher than that of molecular weight polyethylene, the epoxy resin on the primer powder is melted first and is at the bottom layer of the spraying material, so that the epoxy resin is better adsorbed on the surface of the metal workpiece 15, making the spraying material easy to adsorb on the metal surface, thereby increasing the service life of the metal workpiece 15;

[0040] Then, the primer powder is evenly sprayed on the metal surface using a spraying tool. After the coating thickness reaches 50 μm, the primer powder is fully adhered to the surface of the metal workpiece 15, which is convenient for the ultra-high molecular weight polyethylene powder 13 to be adsorbed on its surface, thereby improving the effect of the spraying treatment of the metal workpiece 15. At the same time, since the epoxy resin is first melted and solidified, a mixture of a bottom epoxy resin and an upper ultra-high molecular weight polyethylene is formed on the surface of the metal workpiece 15, so that the epoxy resin of the bottom layer is adsorbed on the surface of the metal, and the ultra-high molecular weight polyethylene of the outer layer wraps the metal inside, thereby increasing the service life of the metal workpiece 15; then, the workpiece is immersed in the ultra-high molecular weight polyethylene powder 13, and is baked in an oven at 210° for 20 minutes, so that the soluble inorganic ultra-high micropowder 14 in the primer powder is dissolved, and the ultra-high molecular weight polyethylene powder 13 floats on the upper layer of the soluble inorganic ultra-high micropowder 14, so as to better protect the metal surface and play the role of anti-fatigue, anti-ultraviolet, self-lubricating and anti-corrosion.

Claims

1. A method for spraying a metal spraying material, characterized in that: The following steps are involved: S1: providing primer powder and ultra-high molecular weight polyethylene; the primer powder comprises the following raw materials in parts by weight: 20 parts of ultra-high molecular weight polyethylene, 20 parts of fusible inorganic ultrafine powder, and 60 parts of epoxy resin micropowder; S2: crushing the ultra-high molecular weight polyethylene into ultra-high molecular weight polyethylene powder with a size of more than 300 mesh; S3: Mix the fusible inorganic ultrafine powder into the ultra-high molecular weight polyethylene powder with a mesh size of 300 or more and crush them in a ratio of 1:1, and use a pressure mechanism to apply pressure, and then pulverize and purify the mixture twice to obtain a porous ultrafine powder; S4: Ultrasonic mixing porous ultra-high micro powder and epoxy resin micro powder with a size of 400 mesh or more in a ratio of 4:6 to obtain a primer powder; S5: Provide metal workpieces, ultra-high molecular weight polyethylene powder and primer powder; S6: Grind, degrease and rust the surface of the metal workpiece, and heat it to 180 degrees using a heating mechanism; S7: Use a spraying tool to evenly spray the primer powder on the metal surface. After the coating thickness reaches 50μm, it is then soaked in ultra-high molecular weight polyethylene micropowder and baked in an oven at 210° for 20 minutes to finally achieve a metal workpiece with an ultra-high molecular weight coating.

2. A metal spraying material, characterized in that: The metal spraying material is prepared by the spraying method of claim 1.

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