Abrasion-resistant nano-cermet coating for aluminum dam rollers with reduced roughness

Abstract

The invention belongs to the technical field of nanotechnology, and particularly relates to a roughness-reduction-resistant and wear-resistant nano metal ceramic coating of an aluminum dam roller. The invention relates to a roughness-reduction-resistant and wear-resistant nano metal ceramic coating for an aluminum dam roller, which sequentially comprises a priming coat, a nickel-chromium coating, a bonding layer and a functional layer from inside to outside, wherein the nickel-chromium coating comprises 30-40% of nickel and 15-25% of chromium, and the bonding layer and the functional layer are nano tungsten carbide coatings. According to the wear-resistant nano metal ceramic coating provided by the invention, the roughness of the surface can be better maintained, and the friction coefficient of the surface of the dam roller is increased. And nano-scale tungsten carbide can be effectively coated on the surface of the dam roller.

Description

Technical Field

[0001] The invention belongs to the field of nanotechnology, and in particular relates to a wear-resistant nano metal ceramic coating with roughness reduction resistance for an aluminum dam roller. Background Art

[0002] With the continuous development of the manufacturing industry, the demand for steel, as an indispensable material in the manufacturing industry, is growing day by day. As a steel production equipment, steel rolling mills are widely used in various steel production fields. Many rolling mills have dam rollers installed on the crossbeams between the archways on the exit side of the internal racks to maintain the wrap angle of the strip to the tensiometer roller and remove the emulsion adhering to the surface of the strip. The existing dam rollers have poor wear resistance, and their surface roughness will be significantly reduced after use, resulting in reduced friction. Summary of the invention

[0003] In order to solve the above problems, the present invention adopts the following technical solutions: The wear-resistant nano-metal ceramic coating of the aluminum dam roller with reduced roughness is as follows from the inside to the outside: The base layer is a nickel-chromium coating, wherein the nickel content of the nickel-chromium coating is 30% to 40% and the chromium content is 15% to 25%. Adhesive layer, The functional layer is a nano-tungsten carbide coating.

[0004] In some embodiments, the wear-resistant nano-metal ceramic coating is coated on the roller surface of the aluminum dam roller.

[0005] In some embodiments, the primer layer is coated on the roller body surface of the aluminum dam roller, and the adhesive layer and the functional layer are sequentially coated on the outer surface of the primer layer from the inside to the outside.

[0006] In some embodiments, the wear-resistant nano-metal ceramic coating is sprayed onto the outer wall of the roller body by supersonic spraying.

[0007] In some embodiments, roller mounting shafts are provided at both ends of the roller body, and the roller mounting shafts are provided with limiting grooves.

[0008] In some embodiments, the roller body is made of aluminum.

[0009] The beneficial effects of the present invention are: The wear-resistant nano-metal ceramic coating provided by the present invention can better maintain the surface roughness and improve the friction coefficient of the dam roller surface, and can effectively coat nano-scale tungsten carbide on the dam roller surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the aluminum dam roller; Figure 2A partial cross-sectional view of a roller body being coated.

[0011] In the figure: 100 roller body, 200 roller body mounting shaft, 210 limiting groove, 300 wear-resistant nano-metal ceramic coating, 310 primer layer, 320 bonding layer, 330 functional layer. DETAILED DESCRIPTION

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] The wear-resistant nano-metal ceramic coating of the aluminum dam roller with reduced roughness is as follows from the inside to the outside: The base layer 310 is a nickel-chromium coating, wherein the nickel content of the nickel-chromium coating is 30% to 40% and the chromium content is 15% to 25%. Adhesive layer 320, The functional layer 330 is a nano-tungsten carbide coating.

[0014] In some embodiments, the wear-resistant nano-metal ceramic coating is coated on the surface of the roller body 100 of the aluminum dam roller.

[0015] In some embodiments, the primer layer 310 is coated on the surface of the roller body 100 of the aluminum dam roller, and the adhesive layer 320 and the functional layer 330 are sequentially coated on the outer surface of the primer layer 310 from the inside to the outside.

[0016] In some embodiments, the wear-resistant nano-metal ceramic coating is sprayed onto the outer wall of the roller body 100 by supersonic spraying.

[0017] In some embodiments, roller body mounting shafts 200 are further provided at both ends of the roller body 100 , and the roller body mounting shafts 200 are provided with limiting grooves 210 .

[0018] In some embodiments, the roller body 100 is made of aluminum.

[0019] The wear-resistant nano-metal ceramic coating provided by the present invention can better maintain the surface roughness and improve the friction coefficient of the dam roller surface, and can effectively coat nano-scale tungsten carbide on the dam roller surface.

[0020] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A wear-resistant nano-metal ceramic coating with reduced roughness for an aluminum dam roller, characterized in that: The wear-resistant nano-metal ceramic coating is applied to the surface of a roller body (100) of an aluminum dam roller. The roller body (100) is made of aluminum. Roller body mounting shafts (200) are provided at both ends of the roller body (100). The roller body mounting shafts (200) are provided with limiting grooves (210). The wear-resistant nano-metal ceramic coating is sequentially: The base layer (310) is a nickel-chromium coating, wherein the nickel content of the nickel-chromium coating is 30% to 40%, and the chromium content is 15% to 25%. Adhesive layer (320), The functional layer (330) is a nano-tungsten carbide coating.

2. The wear-resistant nano-metal ceramic coating with reduced roughness for an aluminum dam roller according to claim 1, characterized in that: The primer layer (310) is coated on the surface of the roller body (100) of the aluminum dam roller, and the adhesive layer (320) and the functional layer (330) are sequentially coated on the outer surface of the primer layer (310) from the inside to the outside.

3. The wear-resistant nano-metal ceramic coating with reduced roughness for an aluminum dam roller according to claim 1, characterized in that: The wear-resistant nano-metal ceramic coating is sprayed onto the outer wall of the roller body (100) by supersonic spraying.

Images