Three-layer polyethylene anti-corrosion stainless steel composite pipe
The three-layer polyethylene anti-corrosion structure solves the problems of poor anti-corrosion effect and deformation of stainless steel composite pipes in corrosive environments, providing excellent anti-corrosion performance and mechanical strength, and is suitable for complex application environments.
Patent Information
- Application Number
- CN202520325519.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing stainless steel composite pipes have poor corrosion resistance in corrosive environments and are prone to deformation under heavy pressure.
The structure employs a three-layer polyethylene anti-corrosion design, comprising a stainless steel composite pipe body, a first anti-corrosion layer, a second anti-corrosion layer, a reinforcing layer, and an outer layer, which are respectively composed of polyethylene coating, polyethylene copolymer adhesive, glass fiber, and high-density polyethylene, forming a multi-layer protective barrier.
It achieves excellent corrosion resistance and mechanical strength, and can maintain shape stability in harsh environments, reducing maintenance costs.
Smart Images
Figure CN223662809U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stainless steel composite pipe technical field, concretely is a three layer polyethylene anticorrosive stainless steel composite pipe. BACKGROUND
[0002] Stainless steel composite pipe is made of stainless steel and carbon structural steel two metal materials through lossless pressure synchronous composite process, positive spinning embedding type composite process, hot pressing composite process or explosion composite process etc. These processes ensure that two materials realize firm combination under the premise of not destroying respective performance. Stainless steel composite pipe can resist the erosion of various corrosive media and is suitable for various severe chemical environments such as chemical industry, petroleum etc.
[0003] When stainless steel composite pipe is in underground, seabed or high corrosive soil environment, corrosion to stainless steel composite pipe can be caused, so a stainless steel composite pipe capable of preventing corrosion is required, and the scheme of a three layer polyethylene anticorrosive stainless steel composite pipe is proposed to solve the above problems. SUMMARY
[0004] The utility model discloses a three layer polyethylene anticorrosive stainless steel composite pipe, has the advantages of anticorrosion, solves the problem that the existing stainless steel composite pipe is poor in anticorrosive effect to corrosive environment in the process of using, and is easy to deform when being subjected to heavy pressure.
[0005] To achieve the above object, the utility model provides the following technical scheme: a three layer polyethylene anticorrosive stainless steel composite pipe, including stainless steel composite pipe main part, first anticorrosive layer, second anticorrosive layer, reinforcing layer and outer layer.
[0006] The first anticorrosive layer is sprayed on the surface of the stainless steel composite pipe main part, the second anticorrosive layer is fixedly sleeved on the surface of the first anticorrosive layer, and the reinforcing layer is fixedly sleeved on the surface of the second anticorrosive layer.
[0007] The outer layer is fixedly sleeved on the surface of the reinforcing layer.
[0008] As a preferred three layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the stainless steel composite pipe main part includes an inner tube and an outer tube, and the outer tube is fixedly sleeved on the surface of the inner tube.
[0009] As a preferred three layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the inner tube is made of stainless steel, and the outer tube is made of carbon steel.
[0010] As a preferred three layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the first anticorrosive layer is made of polyethylene paint.
[0011] As a kind of three-layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the second anticorrosion layer material is polyethylene copolymer adhesive.
[0012] As a kind of three-layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the reinforcing layer material is glass fiber.
[0013] As a kind of three-layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the outer layer includes scale layer and third anticorrosion layer, the third anticorrosion layer is fixedly sleeved on the surface of scale layer, and the scale layer is coated on the surface of reinforcing layer.
[0014] As a kind of three-layer polyethylene anticorrosive stainless steel composite pipe of the utility model, the scale layer is glass flake paint material, and the third anticorrosion layer is high-density polyethylene material.
[0015] Compared with the prior art, the utility model has the beneficial effects as follows:
[0016] 1, the first anticorrosion layer of the utility model adopts polyethylene paint and is directly sprayed on the surface of stainless steel composite pipe body, forms the preliminary anticorrosion protection barrier, polyethylene has good chemical stability and corrosion resistance, can effectively resist most common corrosive medium, the second anticorrosion layer uses polyethylene copolymer adhesive and is fixedly sleeved on the first anticorrosion layer, this layer not only enhances the bonding force with the first layer, but also provides additional anticorrosion protection, and provides a solid foundation for subsequent reinforcing layer. ACCURACY
[0017] Fig. 1 It is the structure isometric sectional view of the utility model;
[0018] Fig. 2 It is the structure front view of the utility model;
[0019] Fig. 3 It is the outer layer structure diagram of the utility model.
[0020] In the drawing: 1, stainless steel composite pipe body;2, first anticorrosion layer;3, second anticorrosion layer;4, reinforcing layer;5, outer layer;51, scale layer;52, third anticorrosion layer. Specific embodiment
[0021] Please refer to Figs. 1-3 A kind of three-layer polyethylene anticorrosive stainless steel composite pipe, including stainless steel composite pipe body 1, first anticorrosion layer 2, second anticorrosion layer 3, reinforcing layer 4 and outer layer 5.
[0022] Further, the first anticorrosion layer 2 is sprayed on the surface of the stainless steel composite pipe body 1, the second anticorrosion layer 3 is fixedly sleeved on the surface of the first anticorrosion layer 2, and the reinforcing layer 4 is fixedly sleeved on the surface of the second anticorrosion layer 3.
[0023] Further, the outer layer 5 is fixedly sleeved on the surface of the reinforcing layer 4.
[0024] Further, the stainless steel composite pipe body 1 comprises an inner pipe and an outer pipe, and the outer pipe is fixedly sleeved on the surface of the inner pipe.
[0025] Further, the inner pipe is made of stainless steel, and the outer pipe is made of carbon steel.
[0026] Further, the first anticorrosion layer 2 is made of polyethylene paint.
[0027] Further, the second anticorrosion layer 3 is made of polyethylene copolymer adhesive.
[0028] Further, the reinforcing layer 4 is made of glass fiber.
[0029] Further, the outer layer 5 comprises a scale layer 51 and a third anticorrosion layer 52, the third anticorrosion layer 52 is fixedly sleeved on the surface of the scale layer 51, and the scale layer 51 is coated on the surface of the reinforcing layer 4.
[0030] Further, the scale layer 51 is made of glass flake paint, and the third anticorrosion layer 52 is made of high-density polyethylene.
[0031] The first anticorrosion layer 2 is directly sprayed on the surface of the stainless steel composite pipe body 1 by using polyethylene paint to form a preliminary anticorrosion protection barrier. Polyethylene has good chemical stability and corrosion resistance, and can effectively resist most common corrosive media. The second anticorrosion layer 3 is fixedly sleeved on the first anticorrosion layer 2 by using polyethylene copolymer adhesive. This layer not only enhances the bonding force with the first layer, but also provides additional corrosion protection, and at the same time provides a solid foundation for the subsequent reinforcing layer 4.
[0032] The scale layer 51 is made of glass flake paint and is coated on the surface of the reinforcing layer 4. Due to the unique layered structure of glass flake, it can effectively prevent corrosive media from penetrating into the inside of the pipe, further enhancing the overall anticorrosion ability. The third anticorrosion layer 52 is made of high-density polyethylene, which serves as the outermost protective layer. It not only has excellent weather resistance and mechanical strength, but also provides the outermost defense line to prevent the influence of the external environment on the internal materials. The third anticorrosion layer 52, the scale layer 51, the second anticorrosion layer 3 and the first anticorrosion layer 2 are arranged in sequence, which can have excellent anticorrosion ability, avoid damage to a single anticorrosion layer, and prevent the stainless steel composite pipe body 1 from being corroded.
[0033] The inner tube of the stainless steel composite pipe body 1 is made of stainless steel, mainly using the high strength and corrosion resistance of stainless steel, the outer tube is made of carbon steel to provide necessary mechanical support and reduce cost, the combination of the two can not only ensure the pressure strength of the pipe, but also reduce the material cost, the reinforcing layer 4 uses glass fiber as the reinforcing material, glass fiber is known for its high strength, light weight and excellent dimensional stability, using glass fiber as the reinforcing layer 4 can significantly improve the rigidity and deformation resistance of the whole composite pipe, so that it can keep the shape unchanged under the action of high pressure or external stress.
[0034] The three-layer polyethylene corrosion-resistant stainless steel composite pipe not only has excellent corrosion resistance, but also has good mechanical strength and deformation resistance, each layer has its specific function, and they work together to meet the needs in complex application environment, such design makes the pipe can run stably for a long time even in harsh environment, reduces the maintenance cost and replacement frequency.
[0035] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A three-layer polyethylene anticorrosive stainless steel composite pipe, characterized by, The stainless steel composite pipe body (1), the first anticorrosive layer (2), the second anticorrosive layer (3), the reinforcing layer (4) and the outer layer (5) are sequentially arranged. The first anticorrosive layer (2) is sprayed on the surface of the stainless steel composite pipe body (1), the second anticorrosive layer (3) is fixedly sleeved on the surface of the first anticorrosive layer (2), and the reinforcing layer (4) is fixedly sleeved on the surface of the second anticorrosive layer (3). The outer layer (5) is fixedly sleeved on the surface of the reinforcing layer (4).
2. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 1, characterized in that: The stainless steel composite pipe body (1) comprises an inner pipe and an outer pipe, and the outer pipe is fixedly sleeved on the surface of the inner pipe.
3. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 2, characterized in that: The inner pipe is made of stainless steel, and the outer pipe is made of carbon steel.
4. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 1, characterized in that: The first anticorrosive layer (2) is made of polyethylene paint.
5. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 1, characterized in that: The second anticorrosive layer (3) is made of polyethylene copolymer adhesive.
6. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 1, characterized in that: The reinforcing layer (4) is made of glass fiber.
7. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 1, characterized in that: The outer layer (5) comprises a scale layer (51) and a third anticorrosive layer (52), the third anticorrosive layer (52) is fixedly sleeved on the surface of the scale layer (51), and the scale layer (51) is coated on the surface of the reinforcing layer (4).
8. The three-layer polyethylene anticorrosive stainless steel composite pipe according to claim 7, characterized in that: The scale layer (51) is made of glass scale paint, and the third anticorrosive layer (52) is made of high-density polyethylene.