Manufacturing process of polyethylene pipe with tracer function

Abstract

The present invention discloses a manufacturing process of a polyethylene pipe with a tracing function, which is characterized in that the manufacturing process is as follows: a. First, a polyethylene pipe is processed by extrusion molding; b. Polyethylene and magnetic powder are mixed evenly by a mixing device to produce a magnetic ring; c. The magnetic ring is installed on the port of the polyethylene pipe. The invention installs the magnetic ring in the end of the polyethylene pipe, which plays a tracing role on the pipeline and facilitates the accurate determination of the position of the pipeline connection port when the pipeline is detected by the equipment; at the same time, when the pipeline body is connected by hot melting, the end will form a flange outward, and when the end forms a flange outward, it drives the magnetic ring to move to the flange along with the end part, which plays a tracing role and does not affect the hot melting welding of the end of the pipeline body.

Description

Technical Field

[0001] The invention relates to a polyethylene pipe, in particular to a manufacturing process of a polyethylene pipe with a tracing function. Background Art

[0002] Tracer pipe is an indispensable pipe in the current social construction. It can prevent the situation that the direction of the pipeline cannot be known after it is laid, which increases the maintenance cost in the later stage. The existing tracer pipe is to bury a metal wire in the pipeline or make a tracer strip directly on the pipeline wall when the pipeline is extruded, so as to achieve the purpose of pipeline detection and tracing.

[0003] However, the metal wires or tracer strips on the existing tracer tubes are basically set on the pipeline wall, so when detecting the pipeline, only the specific position of the pipeline can be detected, but the position of the pipeline connection cannot be accurately determined. Therefore, a polyethylene pipe manufacturing process with a tracer function is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to propose a polyethylene pipe manufacturing process with a tracer function.

[0005] In order to achieve the above object, the present invention provides the following technical solution, a polyethylene pipe manufacturing process with a tracer function, wherein the manufacturing process is as follows:

[0006] a. First, the polyethylene tube is processed by extrusion molding;

[0007] b. Mix the polyethylene and magnetic powder evenly through a mixing device to produce a magnetic ring;

[0008] c. Install the magnetic ring onto the end of the polyethylene tube.

[0009] Further preferably, the magnetic ring may be manufactured by injection molding or die casting.

[0010] Further preferably, when the magnetic ring is manufactured, a plurality of screw-shaped nail-shaped structures are formed on one side thereof.

[0011] Further preferably, in the above step c, when the magnetic ring is installed on the port of the polyethylene tube, it is pressed into the port of the polyethylene tube by a press.

[0012] Further preferably, when the magnetic ring is pressed into the end of the polyethylene tube in the above step c, the end of the polyethylene tube may be heated first to soften it before pressing the magnetic ring into the port.

[0013] Further preferably, when the polyethylene tubes equipped with magnetic rings are connected, a hot melt device is used to contact the ends of the polyethylene tubes to heat them and at the same time form a moving extrusion force on the polyethylene tubes, so that the ends of the polyethylene tubes are turned outward to form flanges, and then the ends of the two polyethylene tubes are contacted for hot melt welding.

[0014] Further preferably, in the above process, the port of the polyethylene tube drives the magnetic ring installed at the port to flip outward and move into the flange during the process of flipping outward.

[0015] Further preferably, after the ends of the two polyethylene pipes are welded, a connector made of Permalloy is installed on the flanges of the ends of the two polyethylene pipes.

[0016] The beneficial effects of the present invention are as follows: by installing the magnetic ring in the end of the polyethylene pipe, it plays a tracing role on the polyethylene pipe and facilitates the accurate determination of the position of the pipe connection port when the pipe is detected by the equipment; at the same time, when the pipe body is connected by hot melting, the end will form a flange outward, and when the end forms the flange outward, it drives the magnetic ring to move to the flange along with the end part, which plays a tracing role while not affecting the hot melting welding of the end of the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the process flow of the present invention;

[0018] Figure 2 It is a partial structural schematic diagram of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the magnetic ring in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure after pipeline connection of the present invention.

[0021] Legend: 1. Polyethylene tube; 2. Magnetic ring; 3. Nail-like structure; 4. Flanged edge; 5. Connector. DETAILED DESCRIPTION

[0022] Next, we will further explain the manufacturing process of the polyethylene pipe with tracing function of the present invention in conjunction with the accompanying drawings.

[0023] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-Figure 4 As shown in the figure, the manufacturing process of polyethylene pipe with tracer function is characterized in that the manufacturing process is as follows: Example 1

[0026] a. First, a polyethylene tube 1 is processed by extrusion molding;

[0027] b. The polyethylene and magnetic powder are mixed evenly by a mixing device and then injection molded or die-casted to produce a magnetic ring 2;

[0028] c. The magnetic ring 2 is installed on the port of the polyethylene tube 1 by squeezing or knocking the magnetic ring 2 through a press or other equipment to complete the preparation of the polyethylene tube 1 with a tracer function;

[0029] When connecting the polyethylene pipe 1 with a tracer function, firstly, the end of the pipe is heated by a hot-melt device to make it hot-melt, and a certain extrusion force is applied to the pipe during heating, so that the end of the pipe is driven to be flanging 4 outwards under the action of heating and extrusion, and during the flanging 4 process, the magnetic ring 2 installed at the end is driven to move outwards into the formed flanging 4;

[0030] Then, after the welding of the ends of the two polyethylene tubes 1 is completed, a connector 5 made of Permalloy is installed on the flanges 4 at the ends of the two polyethylene tubes 1. The magnetic connection of the magnetic rings 2 on the flanges at the ends of the two polyethylene tubes 1 is enhanced by using the connector 5 made of Permalloy to facilitate subsequent detection.

[0031] After the hot melt is completed, the ends of the two pipes are brought into contact to complete the hot melt welding. At this time, the magnetic ring 2 is in the flange 4, which will not affect the connection of the pipes and can also play a tracing role. Example 2

[0032] The difference between this embodiment and embodiment 1 is that a plurality of nail-like structures 3 arranged in the shape of screws are provided on one side of the magnetic ring 2, and the nail-like structures 3 are integrally formed with the magnetic ring 2. The arrangement of the nail-like structures 3 facilitates pressing the magnetic ring 2 into the end of the polyethylene tube 1, and at the same time increases the installation firmness of the magnetic ring 2. Example 3

[0033] The difference between this embodiment and embodiment 1 is that before pressing the magnetic ring 2 into the end of the polyethylene tube 1, the end of the polyethylene tube 1 is heated to soften it, which makes it easier to press the magnetic ring 2 into the end of the polyethylene tube 1. At the same time, after cooling, the installation firmness of the magnetic ring 2 can be increased.

[0034] The protection scope of the present invention is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present invention.

Claims

1. The manufacturing process of polyethylene pipe with tracer function is characterized by The manufacturing process is as follows: a. First, the polyethylene tube is processed by extrusion molding; b. Mix the polyethylene and magnetic powder evenly through a mixing device to produce a magnetic ring; c. Install the magnetic ring onto the port of the polyethylene tube; d. When the polyethylene tubes equipped with magnetic rings are connected, the hot-melt device is used to contact the ends of the polyethylene tubes to heat them and simultaneously form a moving extrusion force on the polyethylene tubes, so that the ends of the polyethylene tubes are turned outward to form a flange, and then the ends of the two polyethylene tubes are contacted for hot-melt welding; in the process of turning outward, the ends of the polyethylene tubes drive the magnetic ring installed at the ends to turn outward and move into the flange; e. After the welding of the ends of the two polyethylene pipes is completed, a connecting piece made of Permalloy is installed on the flanges of the ends of the two polyethylene pipes.

2. The manufacturing process of polyethylene pipe with tracing function according to claim 1, characterized in that: The magnetic ring can be manufactured by injection molding or die casting.

3. The manufacturing process of polyethylene pipe with tracing function according to claim 2, characterized in that: When the magnetic ring is manufactured, a plurality of screw-shaped nail-shaped structures are formed on one side thereof.

4. The manufacturing process of polyethylene pipe with tracing function according to claim 1, characterized in that: When the magnetic ring is installed on the port of the polyethylene tube in the above step c, it is pressed into the port of the polyethylene tube by a press.

5. The manufacturing process of polyethylene pipe with tracing function according to claim 4, characterized in that: In the above step c, when the magnetic ring is pressed into the end of the polyethylene tube, the end of the polyethylene tube may be heated first to soften it before pressing the magnetic ring into the port.

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