A radially reinforced polyethylene solid wall pipe

Abstract

This utility model discloses a radially reinforced polyethylene solid-wall pipe, including a pipe body composed of an inner layer and an outer layer. The pipe body is characterized by having several discontinuous nylon rings between the inner and outer layers, and welding zones at both ends for easy connection. By setting these welding zones, the nylon ring injection time is controlled during pipe processing according to a predetermined pipe length. The injection of the nylon rings is delayed at the beginning of the pipe body and stopped early at the end, eliminating the need for nylon rings at both ends. This facilitates hot-melt welding of the pipe ends during connection, improving connection reliability. Furthermore, the wall thickness ratio is optimized for a more rational pipe structure, better utilizing the performance advantages of each layer, ensuring pipe stability and adhesion durability, and effectively improving the overall performance of the pipe.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene solid wall pipe technology, specifically a radially reinforced polyethylene solid wall pipe. Background Technology

[0002] Existing polyethylene drainage pipes are often limited in industrial wastewater transportation due to insufficient high-temperature resistance. Traditional methods of reinforcement, such as steel wire, steel skeleton, or glass fiber, increase the weight of the pipe and are also costly. Furthermore, the process of weaving and welding the fibers is complex and has low production efficiency. In addition, the addition of the reinforcing layer results in poor weldability at the pipe ends. Therefore, a radially reinforced polyethylene solid wall pipe is proposed. Utility Model Content

[0003] The main purpose of this utility model is to provide a solution that can effectively address the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a radially reinforced polyethylene solid wall pipe, comprising a pipe body, wherein the pipe body is composed of an inner layer and an outer layer, characterized in that: a plurality of discontinuous nylon rings are provided between the inner layer and the outer layer, and welding areas are provided at both ends of the pipe body for easy connection.

[0005] Preferably, the wall thickness ratio of the inner layer, the nylon ring, and the outer layer is 2:1:2.

[0006] Preferably, the width of the nylon ring is 1 / 5 to 1 / 3 of the diameter of the tube, and the width and spacing can be varied according to the heat resistance requirements.

[0007] Preferably, the surface of the nylon ring is formed with a rough surface to increase adhesion through polarization treatment.

[0008] The present invention has the following beneficial effects: By setting up a welding zone, during the processing of the pipe, the injection time of the nylon ring is controlled according to the predetermined length of the pipe. The injection of the nylon ring is delayed at the beginning of the pipe and stopped in advance at the end of the pipe, so that no nylon ring is set at both ends of the pipe, which facilitates the hot melt welding of the pipe ends when the pipe is connected, and improves the reliability of the connection.

[0009] By setting the wall thickness ratio, the structure of the pipe is made more reasonable, the performance advantages of each layer of material are better utilized, the stability and bonding durability of the pipe are guaranteed, and the overall performance of the pipe is effectively improved. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the present invention;

[0011] Figure 2 This is a longitudinal sectional view of the present invention.

[0012] Legend: 1. Pipe body; 2. Inner layer; 3. Nylon ring; 4. Outer layer; 5. Welding area. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] like Figure 1-2 As shown, a radially reinforced polyethylene solid-wall pipe includes a pipe body 1, which is composed of an inner layer 2 and an outer layer 4. The pipe body 1 is characterized by having several discontinuous nylon rings 3 between the inner layer 2 and the outer layer 4, and welding areas 5 at both ends of the pipe body 1 for easy connection. The nylon rings 3 improve the high-temperature resistance and overall strength of the pipe, reduce its weight, lower production costs, and allow it to be used in environments requiring high heat resistance and strength, thus increasing its service life. The welding areas 5 allow for precise control of the nylon ring 3 insertion time during pipe processing, based on a predetermined pipe length. Insertion of the nylon rings 3 is delayed at the beginning of the pipe body 1 and stopped prematurely at the end, eliminating the need for nylon rings 3 at both ends of the pipe body 1. This facilitates hot-melt welding of the pipe body 1 ends during connection, improving the reliability of the connection.

[0015] In one embodiment, the wall thickness ratio of the inner layer 2, the nylon ring 3, and the outer layer 4 is 2:1:2; this makes the structure of the tube 1 more reasonable, better utilizes the performance advantages of each layer of material, ensures the stability and bonding durability of the tube 1, and effectively improves the overall performance of the tube 1.

[0016] In one embodiment, the width of the nylon ring 3 is 1 / 5 to 1 / 3 of the diameter of the tube body 1, and the width and spacing can be varied according to the heat resistance requirements. When the heat resistance requirements of the tube are high, the width of the nylon ring 3 is increased, and the spacing between the nylon rings 3 is correspondingly smaller. Conversely, when the heat resistance requirements are low, the width of the nylon ring 3 is reduced, and the spacing is increased, so as to meet the requirements while reasonably reducing the cost.

[0017] In one embodiment, the surface of the nylon ring 3 is roughened by polarization treatment to increase adhesion; the roughened surface can effectively increase the adhesion between the nylon ring 3 and the inner layer 2 and the outer layer 4, ensuring a tight bond between the layers, avoiding delamination during use, and improving the structural stability and reliability of the tube body 1.

[0018] In use, this invention employs an extrusion molding process, controlling the temperature, pressure, and other process parameters of the extruder according to a predetermined wall thickness, to extrude polyethylene raw materials into the inner layer 2 of the tube body 1. Then, a nylon ring 3 with a suitable width undergoes polarization and heat treatment to create a rough surface that increases adhesion. After the inner layer 2 of the tube body 1 is formed, the nylon rings 3 are fitted onto the outer surface of the inner layer 2 at predetermined intervals using specific equipment, ensuring uniform distribution of the nylon rings 3. On the outer side of the inner layer 2 with the nylon rings installed, polyethylene raw materials are added again, and extruded according to a predetermined wall thickness to form the outer layer 4 of the tube body 1. This ensures a tight bond between the outer layer 4, the inner layer 2, and the nylon rings 3, forming a complete tube body 1. Simultaneously, during the fitting of the nylon rings 3, the injection time is carefully controlled. Injection of the nylon rings 3 is delayed at the beginning of the tube body 1, and stopped at the end, creating welding areas 5 at both ends without nylon rings 3.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A radially reinforced polyethylene solid-wall pipe, comprising a pipe body (1), wherein the pipe body (1) is composed of an inner layer (2) and an outer layer (4), characterized in that: Several discontinuous nylon rings (3) are provided between the inner layer (2) and the outer layer (4), and welding areas (5) are provided at both ends of the tube body (1) to facilitate connection.

2. A radially reinforced polyethylene solid wall pipe according to claim 1, characterized in that: The wall thickness ratio of the inner layer (2), nylon ring (3), and outer layer (4) is 2:1:

2.

3. A radially reinforced polyethylene solid wall pipe according to claim 2, characterized in that: The width of the nylon ring (3) is 1 / 5 to 1 / 3 of the diameter of the tube (1), and the width and spacing vary according to the heat resistance requirements.

4. A radially reinforced polyethylene solid wall pipe according to claim 3, characterized in that: The surface of the nylon ring (3) is formed with a rough surface that increases adhesion through polarization treatment.

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