TWI726458B - Manufacturing method of network cable - Google Patents

Abstract

A manufacturing method of a network cable includes providing a plurality of copper wires. The copper wires are stretched to a predetermined-required wire-diameter size. A surface of the copper wire is coated by a layer of an isolation material to form an isolation layer. Two multi-strand copper cores with the isolation layers on the surfaces mentioned above are pair-twisted to form a line pair. The line pairs are assembled on a filler in a cross shape. After the line pairs are assembled on the filler, an external surface of the line pairs and the filler is covered by a layer of a fire barrier material to form a fire proofing layer. A first shield isolation layer is manufactured on a surface of the fire proofing layer. A second shield isolation layer is manufactured on a surface of the first shield isolation layer. A surface of the second shield isolation layer is covered by a layer of an external cladding layer. The external cladding layer is cross-link low smoke halogen free thermoplastic compounds, using an irradiation cross-link.

Description

Net cable manufacturing method

The invention relates to a net line, in particular to a method for manufacturing a net line with good tensile strength, good extensibility, temperature resistance, acid resistance and alkali resistance.

Now whether it is watching videos, chatting, shopping, downloading or retrieving data, or sharing moods in the community, all of these must be connected to the Internet and remote servers through a computer. Therefore, it can be seen that the Internet has almost become an indispensable part of daily life. In addition to meeting the conditions of computer equipment, the speed of connecting to the Internet with a computer will also affect the connection of the Internet.

Network cables play an important role in the digital age. The quality of network cables will directly affect network speed and stability, page errors and other undesirable conditions. Network routes are currently divided into Cat3, Cat5, Cat5e, Cat6, Cat7, Cat7 and Cat8. The larger the number, the newer the version, the more advanced the technology, and the higher the bandwidth. At present, Category 6 cable, generally called Cat6 cable, is a transmission wire standard used on Gigabit Ethernet and other Cat5/Cat3 backward compatible networks. Compared with the Cat5 network route, the Cat6 network route strengthens the protection against crosstalk and system noise.

Because the outer coating layer of the traditional Cat6 network cable is made of polyvinyl chloride (PVC) or polyethylene (PE), the cable is in use due to poor tensile strength and poor stretchability. Good, not resistant to temperature, acid and alkali. After a period of use, the network cable is easily affected by the environment and the outer coating layer is damaged, resulting in unstable internal signal transmission.

Therefore, the main purpose of the present invention is to solve the traditional shortcomings. The present invention redesigns the outer coating layer of the net line so that the net line has the characteristics of good tensile strength, good stretchability, temperature resistance, acid resistance and alkali resistance. The outer coating of the network cable is not easily damaged, the signal transmission is more stable, and the service life of the network cable is increased.

To achieve the above objective, the present invention provides a method for manufacturing a network cable. The method includes: preparing a plurality of copper wires. The copper wires are stretched so that the wire diameter of the copper wires is stretched to a predetermined required wire diameter size. A layer of insulating material is coated on the surface of the copper wires that have been stretched, and an insulating layer is formed with the insulating material. The two or more copper core wire pairs with insulating layers made on the surface are twisted together to form a wire pair. These wire pairs are assembled on a cross-shaped filler. The wire pairs are assembled on the filler, and the outer surfaces of the wire pairs and the filler are covered with a layer of fire barrier material to form a fireproof layer. A first shielding isolation layer is made on the surface of the fireproof layer. A second shielding and isolating layer is formed on the surface of the first shielding and isolating layer. An outer coating layer is coated on the surface of the second shielding isolation layer, and the outer coating layer is a cross-linked low-smoke halogen-free material, which is cross-linked by irradiation.

In an embodiment of the present invention, the insulating layer is polyvinyl chloride or polyethylene.

In an embodiment of the present invention, the cross-shaped filler has 4 area spaces, and each area space can be placed with two line pairs.

In an embodiment of the present invention, the filler is polyethylene.

In an embodiment of the present invention, the fireproof layer is a fireproof patch.

In an embodiment of the present invention, the first shielding isolation layer is an aluminum foil layer.

In an embodiment of the present invention, the second shielding isolation layer is a copper wire mesh braided layer.

In an embodiment of the present invention, the radiation dose is about 8-10 milliradians.

In an embodiment of the present invention, it further includes a detection operation. After the insulating material is coated on the surface of the copper wires, it is transferred to the detector, and the detector is used to detect whether the insulating material coated on the surface of the copper wires is covered. Not week.

Step 100-Step 118

10: Network route

1: wire pair

11: Multi-strand copper core wire

12: Insulation layer

2: Filling

21: Domain Space

3: Fire protection layer

4: The first shielding isolation layer

5: The second shielding isolation layer

6: Outer coating

Fig. 1 is a schematic diagram of the process flow of the method for manufacturing the network cable of the present invention; Fig. 2 is a schematic cross-sectional view of the network cable of the present invention.

With regard to the technical content and detailed description of the present invention, it is now explained as follows with the drawings:

Please refer to FIG. 1, which is a schematic diagram of the process flow of the method for manufacturing a network cable of the present invention. As shown in the figure, in the method for manufacturing a network cable of the present invention, first, in step 100, a plurality of copper wires (Conductors) are prepared, and the copper wires are used as a multi-strand copper core wire for signal transmission within the network cable.

Step 102, the stretching operation, the aforementioned copper wires are stretched through a stretching machine (not shown in the figure), so that the wire diameters of the copper wires are stretched to a predetermined required wire diameter size.

In step 104, insulating layer (Insulation) is made. The surface of the copper wires that have been stretched is coated with a layer of insulating material, and an insulating layer is formed with the insulating material, and a plurality of copper core wires are also formed. In this drawing, the insulating layer is polyvinyl chloride (PVC) or polyethylene (PE).

Step 106, the detection operation, after coating the insulating material on the surface of the above-mentioned copper wires, transfer it to the detector, and use the detector to detect whether the insulating material coated on the surface of the copper wires is imperfectly covered. When the insulating material of the cloth is not properly covered, the amount of insulating material coated by the coater on the surface of the copper wires will be re-adjusted.

In step 108, twisting is made, and the two or more copper core wire pairs with insulating layers made on the surface are twisted together to form a wire pair.

Step 110, collective production. The above-mentioned line pairs are assembled on a cross-shaped filler (Filler). The cross-shaped filler has 4 area spaces, and each area space can be placed with two line pairs. The filler is to provide the net line with anti-pressure and anti-stepping effects. In this drawing, the filler is polyethylene (PE).

In step 112, a flame barrier tape is made. After the wire pairs are assembled on the filler, a layer of fire barrier material is coated on the outer surface of the wire pairs and the filler to form A fire protection layer. In this drawing, the fireproof layer is a fireproof patch.

Step 114, aluminum foil layer (AI-Mylar) is made. After the above-mentioned fireproof layer is made, an aluminum foil layer is made on the surface of the fireproof layer, and the aluminum foil layer is used to form the first shielding isolation layer of the network line. Prevent the transmitted signal from being interfered by the outside such as electromagnetic waves.

In step 116, a braid of copper wire mesh (Braid) is fabricated. After the first shielding isolation layer is completed, the surface of the first shielding isolation layer is covered with a braided copper wire mesh layer, and the braided copper wire mesh layer is used to form the The second shielding isolation layer of the network cable can prevent the transmitted signal from being interfered by the outside such as electromagnetic waves.

In step 118, an outer coating layer (Jacket) is produced. After the second shielding and isolating layer is completed, a layer of outer coating layer is coated on the surface of the second shielding and isolating layer, and the outer coating layer is a cross-linked low Cross-Link Low Smoke Halogen Free Thermoplastic Compounds are cross-linked by radiation and irradiated with radiation. The radiation dose is about 8-10 milliradian (milliradian, abbreviated as Mrad, also called Mila).

Because the outer coating layer of the network line of the present invention is made of cross-linked low smoke halogen-free materials (Cross-Link Low Smoke Halogen Free Thermoplastic Compounds), and after being irradiated with radiation, the outer coating layer has tensile strength Network line with good strength, good stretchability, temperature resistance, acid resistance and alkali resistance.

Please refer to FIG. 2, which is a schematic cross-sectional view of the network cable of the present invention. As shown in the figure: the network cable 10 of the present invention includes: a plurality of wire pairs 1, a filler 2, a fireproof layer 3, a first shielding isolation layer 4, a second shielding isolation layer 5, and an outer cover Cladding 6.

The wire pairs 1 are each composed of two multi-strand copper core wires 11, and an insulating layer 12 is provided on the outer surface of the multi-strand copper core wires 11. In this drawing, the insulating layer 12 is made of polyvinyl chloride (PVC) or polyethylene (PE).

The filler 2 is a cross-shaped filler 2 with four regional spaces 21 on it, and each regional space 21 can accommodate a set of wire pairs 1. The filler 2 is to provide the net line 10 with anti-pressure and anti-stepping effects. In this drawing, the filler 2 is polyethylene (PE).

The fireproof layer 3 is used to coat the outer surfaces of the wire pairs 1 and the filler 2 with a fireproof barrier material to form a fireproof layer. In this drawing, the fireproof layer 3 is a fireproof patch.

The first shielding isolation layer 4 is coated on the surface of the fireproof layer 3 to prevent the signal transmitted by the network cable 10 from being interfered by the outside such as electromagnetic waves. In this drawing, the first shielding isolation layer 4 is an aluminum foil layer (AI-Mylar).

The second shielding isolation layer 5 is coated on the outer surface of the first shielding isolation layer 4, which can prevent the signal transmitted by the network cable 10 from being interfered by the outside such as electromagnetic waves. In this drawing, the second shielding isolation layer 5 is a braided copper wire mesh (Braid). The outer coating layer 6 is set on the surface of the second shielding isolation layer 5, and the outer coating layer 6 is made of Cross-Link Low Smoke Halogen Free Thermoplastic Compounds. Radiation cross-linking, after irradiating a dose of about 8-10 milliradians with radiation, the outer coating layer 6 has a network path with good tensile strength, good stretchability, temperature resistance, acid resistance and alkali resistance.

By the way, the outer coating layer 6 of the network line 10 is made of Cross-Link Low Smoke Halogen Free Thermoplastic Compounds (Cross-Link Low Smoke Halogen Free Thermoplastic Compounds), and after cross-linking by radiation, the outer coating layer 6 has Network line with good tensile strength, good stretchability, temperature resistance, acid resistance and alkali resistance.

However, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of patent protection of the present invention. Therefore, all equivalent changes made by using the description or drawings of the present invention are included in the rights of the present invention in the same way. Within the scope of protection, they shall be combined to Chen Ming.

Step 100-Step 118

Claims (6)

A method for manufacturing a network cable, the method comprising: a) preparing a plurality of copper wires; b) stretching the copper wires so that the wire diameters of the copper wires are stretched to the predetermined required wire diameter size C), coating the surface of the above-mentioned stretched copper wires with a layer of insulating material, the insulating material also forms an insulating layer, the insulating layer is polyvinyl chloride or polyethylene; d), on the After the surface of some copper wires are coated with insulating material, they are transferred to the detector, and the detector is used to detect whether the insulating material coated on the surface of the copper wires is imperfectly covered; e). Layers of multiple copper core wire pairs are twisted together to form a wire pair; f), the above-mentioned wire pairs are assembled on a cross-shaped filler, the filler is polyethylene; g), the wire pairs are assembled in On the filler, a layer of fire barrier material is coated on the outer surface of the wire pairs and the filler to form a fireproof layer; h), a first shielding isolation layer is made on the surface of the fireproof layer; i ). Making a second shielding and isolating layer on the surface of the first shielding and isolating layer; j) Coating an outer coating layer on the surface of the second shielding and isolating layer, and the outer coating layer is cross-linked, low-smoke and halogen-free Material, using radiation cross-linking. According to the method for manufacturing a network cable as described in item 1 of the scope of patent application, in step f, the cross-shaped filler has 4 area spaces, and each area space can be placed with two wire pairs. According to the method for manufacturing a network cable as described in item 1 of the scope of patent application, in step g, the fireproof layer is a fireproof patch. According to the method for manufacturing a network cable as described in item 1 of the scope of patent application, in step h, the first shielding isolation layer is an aluminum foil layer. According to the method for manufacturing a network cable as described in item 1 of the scope of patent application, in step i, the second shielding isolation layer is a copper wire mesh braided layer. According to the method for manufacturing the network line described in the first item of the scope of the patent application, in step j, the radiation dose is about 8-10 milliradians.

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