Stainless steel pipeline piece with high wear resistance

Abstract

The utility model relates to the technical field of stainless steel, and discloses a highly wear-resistant stainless steel pipeline piece which comprises a body, several circles of wear-resistant layers are arranged outside the body, the wear-resistant layers are trapezoidal cylinders, a waterproof layer is arranged inside the body, a corrosion-resistant layer is arranged inside the waterproof layer, and the corrosion-resistant layer is made of stainless steel. A corrosion-resistant layer is arranged in the body, four first alloy steel layers are arranged in the corrosion-resistant layer, and second alloy steel layers are arranged in the first alloy steel layers, and the alloy assembly is installed in the body and used for prolonging the service life of the stainless steel in the using process. The service life of the stainless steel in the using process can be prolonged; the wear-resistant layer arranged outside is particles, the wear area of the stainless steel pipeline is reduced, the first alloy steel layer can improve the wear resistance of the surface of the pipeline, material loss caused by fluid scouring, particle friction and the like is reduced, and the service life of the pipeline is prolonged from multiple aspects.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stainless steel, specifically to a high wear resistance stainless steel pipeline spare. BACKGROUND

[0002] On the one hand, in some environments with complex working conditions, such as mining, metallurgy, construction and other industries, the pipeline is often subjected to the effects of material particle scouring, friction and mechanical impact, etc. The ordinary stainless steel pipeline has poor wear resistance and fast wear rate. Frequent replacement of the pipeline not only increases the maintenance cost, but also causes production interruption and affects work efficiency.

[0003] On the other hand, many pipelines need to transport media containing corrosive substances or be in an external environment with corrosion, such as chemical industry, petroleum, marine engineering and other fields. The ordinary stainless steel pipeline has limited corrosion resistance and is easily eroded by corrosive media, causing damage and leakage of the pipeline, which not only brings safety hazards, but also leads to resource waste and environmental pollution.

[0004] Publication No. CN210118539U, the first alloy steel layer and the second alloy steel layer add manganese element, the alloy steel layer with manganese element has the characteristics of impact resistance and wear resistance, which can effectively improve the extrusion resistance and wear resistance of the stainless steel pipe, effectively prolong the service life of the stainless steel pipe, the SUS301 steel layer contains low Ni, Cr and high N components, which can achieve high strength through cold working, and has excellent high temperature strength and fatigue resistance, which can effectively improve the toughness of the stainless steel pipe, thereby avoiding the rupture of the stainless steel pipe under pressure and extrusion, and making the use more convenient and safe.

[0005] In order to solve the above problems, the ordinary stainless steel pipeline is difficult to survive in different working environments. Therefore, we provide a high wear resistance stainless steel pipeline spare. Utility model content

[0006] In view of the deficiencies of the prior art, the utility model provides a high wear resistance stainless steel pipeline spare, which solves the above problems.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a high wear resistance stainless steel pipeline spare, comprising a body, several wear-resistant layers are arranged outside the body, the wear-resistant layer is a trapezoidal column, a waterproof layer is arranged inside the body, a corrosion-resistant layer is arranged inside the waterproof layer, an alloy steel layer one is arranged inside the corrosion-resistant layer, the alloy steel layer one is divided into four, an alloy steel layer two is arranged inside the alloy steel layer one, and the utility model further comprises:

[0008] The alloy assembly is installed inside the body, which is used to improve the service life of the stainless steel during use.

[0009] Preferably, the outside of the body is fixedly connected with a plurality of wear-resistant layers, and the wear-resistant layers are granules, thereby reducing the wear area of the stainless steel pipeline and prolonging the service life of the pipeline.

[0010] Preferably, the inside of the body is fixedly connected with a waterproof layer, and the waterproof layer can effectively prevent rainwater, underground water and other liquids from the outside from entering the pipeline, so as to avoid that the medium in the pipeline is diluted and polluted by water, or that water and the medium in the pipeline react chemically, thereby affecting the process and product quality.

[0011] Preferably, the inside of the waterproof layer is fixedly connected with a corrosion-resistant layer, and the corrosion-resistant layer can resist the corrosion of the chemical medium, such as acid, alkali and salt, transported in the pipeline and the corrosive substances in the environment outside the pipeline, so as to ensure that the structure of the pipeline is not damaged by chemical action and maintain the stability of the performance.

[0012] Preferably, the inside of the corrosion-resistant layer is fixedly connected with an alloy steel layer one, and the alloy steel layer one can improve the wear resistance of the surface of the pipeline, reduce the material loss caused by fluid scouring and particle friction, and prolong the service life of the pipeline.

[0013] Preferably, the inside of the alloy steel layer one is fixedly connected with an alloy steel layer two, and the alloy steel layer two can form a dense oxide film on the surface of the pipeline by adding specific alloy elements, such as chromium, nickel and molybdenum, so as to prevent the contact between the corrosive medium outside and the base body of the pipeline and improve the corrosion resistance, and can be used in pipeline systems in corrosive environments, such as chemical industry and ocean.

[0014] Compared with the prior art, the utility model provides a high wear-resistant stainless steel pipeline piece, which has the following beneficial effects:

[0015] 1、 this high wear-resistant stainless steel pipeline piece, through setting alloy assembly in the body, can improve the service life of the stainless steel in the use process, the wear layer for granule that sets outside reduces the wear area of the stainless steel pipeline, alloy steel layer one can improve the wear resistance of the surface of the pipeline, reduce the material loss caused by fluid scouring, particle friction and the like, and prolong the service life of the pipeline from multiple aspects.

[0016] 2、 this high wear-resistant stainless steel pipeline piece, the waterproof layer in the body can effectively prevent rainwater, underground water and other liquids from the outside from entering the pipeline, so as to avoid that the medium in the pipeline is diluted and polluted by water, prevent water and the medium in the pipeline from reacting chemically, thereby affecting the process and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0018] Fig. 2The wear-resistant layer is a schematic diagram of the utility model.

[0019] Fig. 3 The alloy steel layer is a schematic diagram of the utility model.

[0020] In the figure: 1, the body; 2, wear-resistant layer 3, waterproof layer; 4, corrosion-resistant layer; 5, alloy steel layer one; 6, alloy steel layer two. DETAILED DESCRIPTION

[0021] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figs. 1-3 A kind of high wear-resistant stainless steel pipeline fittings, including body 1, the outside of body 1 is provided with several wear-resistant layers 2, and wear-resistant layer 2 is trapezoidal column, and the inside of body 1 is provided with waterproof layer 3, and the inside of waterproof layer 3 is provided with corrosion-resistant layer 4, and the inside of corrosion-resistant layer 4 is provided with alloy steel layer one 5, and alloy steel layer one 5 is divided into four, and the inside of alloy steel layer one 5 is provided with alloy steel layer two 6, further comprising:

[0023] Alloy assembly is installed in the inside of body 1, for improving service life in the process of use of stainless steel.

[0024] Further, the outside of body 1 is fixedly connected with multiple wear-resistant layers 2, and wear-resistant layer 2 is granular body, reduces the wear area of stainless steel pipeline, to prolong the service life of pipeline.

[0025] Further, the inside of body 1 is fixedly connected with waterproof layer 3, and waterproof layer 3 can effectively block rainwater, groundwater and other liquids in the outside into the pipeline inside, avoid that the medium in pipe is diluted, contaminated by water, or prevent water and chemical reaction with the medium in pipe, affect the process and product quality, and the inside of waterproof layer 3 is provided with corrosion-resistant layer 4.

[0026] Further, the inside of waterproof layer 3 is fixedly connected with corrosion-resistant layer 4, and corrosion-resistant layer 4 can resist the erosion of chemical medium such as acid, alkali and salt transported in pipe and corrosive substances in the environment outside pipe to the pipeline, ensure that the structure of pipeline is not damaged by chemical action, maintain its stable performance.

[0027] Further, the inside of corrosion-resistant layer 4 is fixedly connected with alloy steel layer one 5, and alloy steel layer one 5 can improve the ability of pipeline surface to resist wear, reduce material loss caused by fluid scouring, particle friction and the like, prolong the service life of pipeline.

[0028] Further, the alloy steel layer two 6 is fixedly connected inside the alloy steel layer one 5, and the alloy steel layer two 6 forms a dense oxide film on the surface of the pipeline by adding specific alloy elements such as chromium, nickel, molybdenum, etc., prevents the contact of external corrosive medium with the pipeline matrix, improves the corrosion resistance, and can be used in the pipeline system in the corrosive environment such as chemical industry and ocean.

[0029] Structure description: body 1: as the basic structure of the pipeline part, it is the main part of the whole pipeline, plays the role of supporting and defining the conveying channel, and provides the attachment basis for other layers.

[0030] Wear-resistant layer 2: located outside the body 1, composed of several circles of wear-resistant materials, in the shape of trapezoidal column or granular body, taking the granular body as an example, these particles are closely arranged and fixed on the outer surface of the body, the wear-resistant layer 2 increases the surface friction and disperses the external abrasive force, reduces the wear area of the stainless steel pipeline, and further improves the wear resistance of the pipeline.

[0031] Waterproof layer 3: arranged inside the body 1 and closely attached to the body, it is a layer of material with waterproof function, forms a continuous and dense structure, effectively blocks the penetration of external rainwater, groundwater and other liquids into the pipeline, and avoids the influence of water on the medium in the pipeline.

[0032] Corrosion-resistant layer 4: inside the waterproof layer 3 and closely connected with the waterproof layer, made of materials that can resist chemical corrosion, can be used for the chemical medium such as acid, alkali and salt in the pipeline and the corrosive substances in the external environment, and can prevent the damage to the pipeline structure by chemical reaction or physical barrier, to ensure the stable performance of the pipeline.

[0033] Alloy steel layer one 5: located inside the corrosion-resistant layer 4 and divided into four parts, made of special alloy steel material, with high strength and hardness, can improve the ability of the pipeline surface to resist wear and tear, reduce the material loss caused by fluid scouring and particle friction, and prolong the service life of the pipeline.

[0034] Alloy steel layer two 6: inside the alloy steel layer one 5, made by adding specific alloy elements such as chromium, nickel and molybdenum, these alloy elements react with oxygen on the surface of the pipeline to form a dense oxide film, this oxide film acts as a protective barrier to prevent the contact of external corrosive medium with the pipeline matrix, further improves the corrosion resistance of the pipeline, and makes the pipeline suitable for corrosive environments such as chemical industry and ocean.

[0035] Usage

[0036] The wear-resistant layer 2 is arranged outside the body 1, and is a granular structure, when external particles and objects contact and rub the pipeline during use, the wear-resistant layer is the first to bear the brunt, due to the granular structure of the wear-resistant layer, the friction force can be dispersed, so that the friction force cannot be concentrated on a certain point or a certain area of the body 1, thereby reducing the wear area of the stainless steel pipeline, at the same time, the wear-resistant layer itself has a certain wear resistance and can withstand a certain degree of friction loss, thereby prolonging the service life of the whole pipeline, the waterproof layer 3 is located inside the body 1, and it closely adheres to the body, when there is rainwater, groundwater and other liquids outside, the waterproof layer forms an effective physical barrier due to its dense material and structure, water molecules cannot penetrate into the pipeline due to the blocking of the waterproof layer, thereby avoiding the dilution and pollution of the medium in the pipeline by water, and preventing the chemical reaction between water and the medium in the pipeline, thereby ensuring the quality of the medium in the pipeline and the stability of the process, the corrosion-resistant layer 4 is inside the waterproof layer, when the pipeline transports acid, alkali, salt and other chemical media, or the pipeline is in a corrosive external environment, the chemical components in the corrosion-resistant layer will react with these corrosive substances, for example, the active components in some corrosion-resistant materials will react with hydrogen ions in the acid to form a passivation film on the surface, which can prevent the acid from further contacting the inner layer material of the pipeline, thereby resisting chemical corrosion from the inside and outside of the pipeline and maintaining the structural stability and normal performance of the pipeline, the alloy steel layer one 5 is inside the corrosion-resistant layer 4, and has high strength and hardness due to its material properties, which can improve the ability of the pipeline surface to resist wear, and when the fluid is washed or the particles rub, the alloy steel layer one reduces the material loss due to its high strength, and the alloy steel layer two 6 is inside the alloy steel layer one 5, and specific alloy elements such as chromium, nickel and molybdenum are added, which will react with oxygen in the air on the surface of the pipeline to form a dense oxide film, which isolates the contact between the external corrosive medium and the pipeline matrix, greatly improving the corrosion resistance of the pipeline, especially for pipeline systems in strong corrosive environments such as chemical industry and ocean, although the specific composition of the alloy assembly is not specified, it is inferred from the function that it is installed inside the body 1 and may interact with other structural layers of the pipeline to change the physical or chemical properties of the whole pipeline, for example, the alloy assembly may release certain ions to produce a synergistic effect with the oxide film formed by the alloy steel layer two 6, thereby further enhancing the stability and density of the oxide film, or changing the microstructure inside the pipeline to make the layers more tightly combined, thereby improving the service life of the stainless steel pipeline as a whole during use.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high wear-resistant stainless steel pipe fitting, comprising a body (1), wherein the body (1) is provided with several wear-resistant layers (2) on its exterior, and the wear-resistant layers (2) are trapezoidal columns; the body (1) is provided with a waterproof layer (3) inside, and a corrosion-resistant layer (4) is provided inside the waterproof layer (3); an alloy steel layer (5) is provided inside the corrosion-resistant layer (4), and the alloy steel layer (5) is divided into four layers, and an alloy steel layer (6) is provided inside the alloy steel layer (5); characterized in that: Also include: Alloy assembly, installed in the inside of the body (1).

2. A highly wear resistant stainless steel pipe fitting according to claim 1, characterized in that: The outside of the body (1) is fixedly connected with a plurality of wear-resistant layers (2), and the wear-resistant layer (2) is a granular body.

3. A highly wear resistant stainless steel pipe fitting according to claim 1, characterized in that: The inside of the body (1) is fixedly connected with a waterproof layer (3), and the inside of the waterproof layer (3) is provided with a corrosion-resistant layer (4).

4. A highly wear resistant stainless steel plumbing fitting according to claim 1, characterized in that: The inside of the waterproof layer (3) is fixedly connected with the corrosion-resistant layer (4).

5. A highly wear resistant stainless steel plumbing fitting according to claim 1, characterized in that: The inside of the corrosion-resistant layer (4) is fixedly connected with an alloy steel layer one (5).

6. A highly wear resistant stainless steel plumbing fitting according to claim 1, characterized in that: The inside of the alloy steel layer one (5) is fixedly connected with an alloy steel layer two (6), and the alloy steel layer two (6) forms a dense oxide film on the surface of the pipeline by adding specific alloy elements, such as chromium, nickel and molybdenum.

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