High-hardness multi-layer rudder sheet coating structure

Abstract

The utility model discloses a high-hardness multi-layer rudder sheet coating structure, relates to the technical field of rudder sheet coatings, and aims to solve the problems that the service life and the reliability of a rudder sheet in a complex and severe environment are limited due to the insufficient hardness of a rudder sheet coating in the prior art. A high-hardness bottom layer is arranged on the rudder piece base body, an anti-corrosion middle layer is arranged on the high-hardness bottom layer, a functional top layer is arranged on the anti-corrosion middle layer, the high-hardness bottom layer is made of tungsten carbide materials, and the functional top layer is made of silicon carbide materials. A reinforced bonding layer is arranged among the rudder sheet base body, the high-hardness bottom layer, the corrosion-resistant middle layer and the functional top layer, the reinforced bonding layer is made of nanoscale carbide particles, the functional top layer comprises a metal layer, a heat-resistant layer and a wear-resistant layer, the heat-resistant layer is arranged above the metal layer, and the wear-resistant layer is arranged above the heat-resistant layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to rudder piece coating technical field, concretely is a kind of high-hardness multilayer rudder piece coating structure. BACKGROUND

[0002] Rudder piece, also known as rudder plate, is usually wing-shaped structure, installed in the tail of ship or the tail of flight device, for adjusting sailing or flight direction by changing its angle, with compact structure, strong durability and other characteristics.In the ship, rudder piece is usually controlled by rudder wheel and transmission mechanism;While in flight device, it is usually controlled by rudder machine, in order to enhance the performance of rudder piece, coating structure is usually arranged on the surface of rudder piece;

[0003] For example, the authorized patent (a rudder piece coating structure) with announcement number CN211170899U): including base body, protective coating is sprayed on base body, transition coating is compounded on protective coating, heat insulation coating is compounded on transition coating, heat insulation coating includes metal layer, wear-resistant layer and heat-resistant layer, metal layer is plasma sprayed on transition coating, wear-resistant layer is electroplated on metal layer, heat-resistant layer is uniformly sprayed on wear-resistant layer;

[0004] The above prior art can effectively improve the stability of the whole by multiple coating superposition spraying, but does not have hardness-enhancing coating, and the hardness of rudder piece coating is insufficient, which limits the service life and reliability of rudder piece in complex and harsh environment;Therefore, the market urgently needs to develop a kind of high-hardness multilayer rudder piece coating structure to help people solve the existing problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of high-hardness multilayer rudder piece coating structure to solve the hardness problem of rudder piece coating in the background art above, limit the service life and reliability of rudder piece in complex and harsh environment.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high-hardness multilayer rudder piece coating structure, including rudder piece base body, high-hardness bottom layer is arranged above the rudder piece base body, corrosion-resistant intermediate layer is arranged above the high-hardness bottom layer, functional top layer is arranged above the corrosion-resistant intermediate layer, the high-hardness bottom layer is made of tungsten carbide material.

[0007] Preferably, the rudder piece base body, high-hardness bottom layer, corrosion-resistant intermediate layer and functional top layer are all provided with reinforcing bonding layer, and the reinforcing bonding layer is made of nanoscale carbide particles.

[0008] Preferably, the functional top layer includes metal layer, heat-resistant layer and wear-resistant layer, the heat-resistant layer is arranged above the metal layer, and the wear-resistant layer is arranged above the heat-resistant layer.

[0009] Preferably, the metal layer is made of titanium alloy material, the heat-resistant layer is high-temperature-resistant closed paint, and the wear-resistant layer is made of silicon nitride material.

[0010] Preferably, the surface of the wear-resistant layer is provided with a plurality of micro-nano grooves.

[0011] Preferably, the corrosion-resistant intermediate layer is made of nickel-based alloy material.

[0012] Preferably, the rudder piece substrate is made of high-strength alloy steel material.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] (1) the utility model discloses a high-hardness multilayer rudder piece coating structure, which comprises a rudder piece substrate, a high-hardness bottom layer arranged above the rudder piece substrate, a corrosion-resistant intermediate layer arranged on the high-hardness bottom layer, a functional top layer arranged on the corrosion-resistant intermediate layer, and a wear-resistant layer arranged on the functional top layer.

[0015] (2) the utility model discloses a high-hardness multilayer rudder piece coating structure, which comprises a rudder piece substrate, a high-hardness bottom layer arranged above the rudder piece substrate, a corrosion-resistant intermediate layer arranged on the high-hardness bottom layer, a functional top layer arranged on the corrosion-resistant intermediate layer, and a wear-resistant layer arranged on the functional top layer.

[0016] (3) the utility model discloses a high-hardness multilayer rudder piece coating structure, which comprises a rudder piece substrate, a high-hardness bottom layer arranged above the rudder piece substrate, a corrosion-resistant intermediate layer arranged on the high-hardness bottom layer, a functional top layer arranged on the corrosion-resistant intermediate layer, and a wear-resistant layer arranged on the functional top layer.

[0017] (4) the utility model discloses a high-hardness multilayer rudder piece coating structure, which comprises a rudder piece substrate, a high-hardness bottom layer arranged above the rudder piece substrate, a corrosion-resistant intermediate layer arranged on the high-hardness bottom layer, a functional top layer arranged on the corrosion-resistant intermediate layer, and a wear-resistant layer arranged on the functional top layer. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the high-hardness multilayer rudder piece coating structure of the utility model;

[0019] Figure 2 It is an enlarged schematic view of the A part of the utility model;

[0020] Figure 3 It is an internal schematic view of the functional top layer of the utility model;

[0021] Figure 4 The structure diagram of the wear-resistant layer of the utility model;

[0022] In the figure: 1, rudder piece base body; 2, high-hardness bottom layer; 3, corrosion-resistant intermediate layer; 4, functional top layer; 5, reinforced bonding layer; 6, metal layer; 7, heat-resistant layer; 8, wear-resistant layer; 9, micro-nano groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Please refer to Figures 1-4 The utility model provides an embodiment: a high-hardness multilayer rudder piece coating structure, including rudder piece base body 1, its characterized in that: the top of rudder piece base body 1 is provided with high-hardness bottom layer 2, the top of high-hardness bottom layer 2 is provided with corrosion-resistant intermediate layer 3, the top of corrosion-resistant intermediate layer 3 is provided with functional top layer 4, high-hardness bottom layer 2 is made of tungsten carbide material.

[0025] By setting high-hardness bottom layer 2 on the top of rudder piece base body 1, made of tungsten carbide material, the overall hardness of the rudder piece is greatly improved, tungsten carbide has excellent wear resistance and high hardness characteristics, can effectively resist wear and impact under complex and harsh environment, thereby prolonging the service life of the rudder piece, the setting of corrosion-resistant intermediate layer 3 further enhances the corrosion resistance of the rudder piece, avoids the peeling and performance degradation of the coating due to corrosion, ensures the long-term stable operation of the rudder piece under harsh conditions such as humidity and salt fog, solves the problem of insufficient hardness of the rudder piece coating, limits the service life and reliability of the rudder piece under complex and harsh environment.

[0026] Please refer to Figure 2 Between rudder piece base body 1, high-hardness bottom layer 2, corrosion-resistant intermediate layer 3 and functional top layer 4, all are provided with reinforced bonding layer 5, and reinforced bonding layer 5 is made of nanoscale carbide particles.

[0027] Reinforced bonding layer 5 is embedded between adjacent coatings by electrochemical deposition, forming a bonding layer with high strength and high bonding force, effectively preventing the coating from falling off, improving the overall stability of the coating, and ensuring the performance stability of the rudder piece during long-term use.

[0028] Please refer to Figure 3The functional top layer 4 comprises a metal layer 6, a heat-resistant layer 7 and a wear-resistant layer 8, the heat-resistant layer 7 is arranged above the metal layer 6, and the wear-resistant layer 8 is arranged above the heat-resistant layer 7, the metal layer 6 is made of titanium alloy material, the heat-resistant layer 7 is high-temperature-resistant closed paint, the high-temperature-resistant closed paint is ZS-1021 high-temperature-resistant closed paint, and the wear-resistant layer 8 is made of silicon nitride material.

[0029] The metal layer 6 made of titanium alloy provides good strength and toughness, titanium alloy has high strength, low density and good corrosion resistance, the titanium alloy metal layer can effectively resist external pressure and protect the rudder blade substrate from damage, and at the same time, its good toughness also ensures that the rudder blade can maintain structural integrity when impacted and is not prone to breakage, the heat-resistant layer 7 made of high-temperature-resistant closed paint effectively improves the high-temperature resistance of the rudder blade, in a high-temperature environment, ordinary coatings may fail due to thermal expansion, thermal stress and other factors, while the ZS-1021 high-temperature-resistant closed paint can effectively resist high-temperature erosion and maintain the integrity and stability of the coating, which enables the rudder blade to operate stably for a long time under high-temperature conditions without performance degradation or coating peeling due to temperature rise, and the wear-resistant layer 8 made of silicon nitride material further enhances the wear resistance of the rudder blade, silicon nitride is a material with high hardness, high wear resistance and good chemical stability, which can maintain long-term wear resistance in harsh friction environments, in the rudder blade coating structure, the silicon nitride wear-resistant layer can effectively resist wear and scratches, protect the surface of the rudder blade from damage, and prolong the service life of the rudder blade, thereby enabling the rudder blade to maintain stable performance in more complex and harsh environments.

[0030] Please refer to Figure 4 The surface of the wear-resistant layer 8 is provided with a plurality of micro-nano grooves 9, the micro-nano grooves 9 are formed by laser etching to improve the self-lubricating performance and anti-adhesion performance of the surface of the wear-resistant layer 8, and further reduce the friction coefficient and wear rate of the coating.

[0031] The setting of the micro-nano grooves 9 can form a small fluid dynamic pressure lubrication area between the coating and the contact surface, and during movement, these areas can generate fluid dynamic pressure effect, which helps to separate the contact surfaces, thereby reducing friction and wear, and after etching the micro-nano grooves, the surface morphology of the coating changes significantly, which helps to reduce the actual contact area between the coating and the contact surface, thereby reducing the adhesion, the existence of the micro-nano grooves can also reduce the surface energy of the coating, which helps to reduce the adhesion tendency of the coating and other substances, and thus the self-lubricating performance and anti-adhesion ability of the coating can be improved by changing the surface morphology and generating fluid dynamic pressure lubrication effect, and these effects work together to make the coating exhibit better performance under friction and wear conditions.

[0032] Please refer to Figure 1The corrosion-resistant intermediate layer 3 is made of nickel-based alloy material, which effectively prevents the coating from being corroded in harsh environments.

[0033] The nickel-based alloy has good corrosion resistance, which can effectively prevent the coating from being corroded in humid, salt spray and other harsh environments, thereby prolonging the service life of the rudder and improving its reliability

[0034] Please refer to Figure 1 The rudder body 1 is made of high-strength alloy steel material to ensure the overall strength and rigidity of the rudder. The surface of the rudder body 1 needs to be pretreated before the coating is set, including cleaning, rust removal, roughening and other steps.

[0035] The high-strength alloy steel ensures the overall strength and rigidity of the rudder, and the pretreatment steps such as cleaning, rust removal and roughening improve the bonding force between the coating and the substrate, making the coating more firmly attached to the substrate and improving the overall performance and stability of the rudder.

[0036] Working principle: when in use, the rudder body 1 is made of high-strength alloy steel material to ensure the overall strength and rigidity of the rudder, and the high-hardness bottom layer 2, the corrosion-resistant intermediate layer 3 and the functional top layer 4 are sequentially arranged above the substrate. The high-hardness bottom layer 2 is made of tungsten carbide material, which greatly improves the overall hardness and wear resistance of the rudder, and can effectively resist wear and impact in complex and harsh environments. The corrosion-resistant intermediate layer 3 is made of nickel-based alloy material, which effectively prevents the coating from being corroded in harsh environments, prolonging the service life of the rudder. The functional top layer 4 includes a metal layer 6 made of titanium alloy, a heat-resistant layer 7 made of high-temperature sealing paint and a wear-resistant layer 8 made of silicon nitride material, which respectively provide good strength, toughness and high-temperature resistance, wear resistance. In addition, reinforcing bonding layers 5 are arranged between each coating, which are made of nanoscale carbide particles and embedded between adjacent coatings by electrochemical deposition to form a bonding layer with high strength and high bonding force, effectively preventing the coating from falling off and improving the overall stability of the coating. The surface of the wear-resistant layer 8 is also provided with micro-nano grooves 9 formed by laser etching to improve the self-lubricating performance and anti-adhesion performance of the surface of the wear-resistant layer 8, further reducing the friction coefficient and wear rate, so that the high-hardness multilayer rudder coating structure can maintain stable performance in complex and harsh environments, prolonging the service life.

[0037] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A high hardness multilayer rudder blade coating structure comprising a rudder blade substrate (1), characterized in that: The rudder base body (1) is provided with a high-hardness bottom layer (2), the high-hardness bottom layer (2) is provided with an anti-corrosion middle layer (3), the anti-corrosion middle layer (3) is provided with a functional top layer (4), and the high-hardness bottom layer (2) is made of tungsten carbide material.

2. A high hardness multi-layer rudder coating structure according to claim 1, characterized in that: The rudder base body (1), the high-hardness bottom layer (2), the anti-corrosion middle layer (3) and the functional top layer (4) are provided with a reinforced bonding layer (5), and the reinforced bonding layer (5) is made of nanoscale carbide particles.

3. The high hardness multi-layer rudder coating structure according to claim 1, characterized in that: The functional top layer (4) comprises a metal layer (6), a heat-resistant layer (7) and a wear-resistant layer (8), the heat-resistant layer (7) is arranged above the metal layer (6), and the wear-resistant layer (8) is arranged above the heat-resistant layer (7).

4. A high hardness multi-layer rudder coating structure according to claim 3, characterized in that: The metal layer (6) is made of titanium alloy material, the heat-resistant layer (7) is high-temperature resistant closed paint, and the wear-resistant layer (8) is made of silicon nitride material.

5. A high hardness multilayer rudder coating structure according to claim 4, characterized in that: The surface of the wear-resistant layer (8) is provided with a plurality of micro-nano grooves (9).

6. A high hardness multilayer rudder coating structure according to claim 1, characterized in that: The anti-corrosion middle layer (3) is made of nickel-based alloy material.

7. The high hardness multilayer rudder coating structure according to claim 1, wherein: The rudder base body (1) is made of high-strength alloy steel material.

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