A high-temperature Teflon waterproof high-voltage wire and cable and its manufacturing process

Abstract

The present invention discloses a high-temperature Teflon waterproof high-voltage wire and cable and a manufacturing process thereof, comprising a plurality of metal conductor layers and a Teflon layer, wherein a protective layer is arranged outside the metal conductor layer, and a glue layer is coated outside the protective layer, and the glue layer is bonded to the inner surface of the Teflon, and a plurality of metal conductors connecting the protective layer, the glue layer and the Teflon layer are connected to the cable core. The present invention has the following beneficial effects: the high-temperature Teflon waterproof high-voltage wire and cable and a manufacturing process thereof provided by the present invention can be suitable for use at high temperatures, utilizing the excellent heat resistance of Teflon, even in the high temperature of summer, when electricity consumption is at a peak, and when the thermal effect of current is relatively significant, the line will not be blown; a plurality of metal conductors constitute the cable, and can be suitable for transmitting electricity at high voltage.

Description

Technical Field

[0001] The invention belongs to the field of electricity and cable design, and in particular to a high-temperature Teflon waterproof high-voltage electric wire and cable and a manufacturing process thereof. Background Art

[0002] Due to the rapid development of science and technology, more and more electrical appliances are used, and the power supply in urban and rural areas has reached a new height. The power carrying capacity of the high-voltage cables designed by the power supply company before is far from meeting the demand, resulting in frequent power outages during the peak power consumption period in summer, which requires constant repairs and rewiring, increasing its workload. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a high-temperature Teflon waterproof high-voltage wire and cable and a manufacturing process thereof. The specific technical solution is as follows:

[0004] A high-temperature Teflon waterproof high-voltage wire and cable comprises a plurality of metal conductor layers and a Teflon layer, wherein a protective layer is arranged outside the metal conductor layer, and a glue layer is coated outside the protective layer, wherein the glue layer is bonded to the inner surface of the Teflon, and a plurality of metal conductors connecting the protective layer, the glue layer and the Teflon layer are connected to a cable core.

[0005] Taking advantage of Teflon's excellent high temperature resistance, the cable is installed in a high-voltage circuit. Even during the peak period of electricity consumption in summer when the temperature is very high, the Teflon insulation layer will not burn and will not affect normal use. In addition, the metal conductor is coated with a protective layer to prevent the conductor and the glue layer from preheating and melting together to increase the line resistance. The Teflon inner layer holds glue, which can prevent the thermal expansion and contraction of Teflon from affecting the arrangement of the various metal conductors.

[0006] As a further improvement, the feature is that a glue layer is provided between the Teflon layers to bond them to each other.

[0007] As a further improvement, the feature is that a glue layer is provided between the outer surface of the Teflon layer and the inner surface of the cable core, so as to bond them to each other.

[0008] There are glue layers between the Teflon layers and between the Teflon layer and the cable core, which can effectively strengthen the connection between them and will not deform during long-term use, thus effectively extending the service life.

[0009] As a further improvement, it is characterized in that: the metal conductor layer is obtained by winding a plurality of metal wires with each other.

[0010] The more metal wires a metal conductor has wrapped around it, the higher the voltage it can carry, making it more suitable for use in high-voltage circuits.

[0011] As a further improvement, it is characterized in that: the cable core is externally connected to a barrier layer.

[0012] The barrier layer can be made of wear-resistant material or waterproof material, so that it can be used even underwater and can be used for a long time during long-term wear.

[0013] The manufacturing process of the high-temperature Teflon waterproof high-voltage wire and cable as described above has the following specific steps:

[0014] Step 1: Immerse the metal conductor in the protective liquid for 1 to 3 minutes, draw it, and stretch it to 5 to 8 times of its original length, then immerse it in the protective liquid for another 1 to 3 minutes, and continue drawing it, and repeat this process 3 times;

[0015] Step 2: Make glue, take 10-30% concentrated nitric acid, 10-15% fluorine-containing solution, 3-5% defoamer, 6-8% leveling agent, and the balance is toluene, mix and stir to make glue;

[0016] Step 3: Bake and soften one side of the Teflon sheet, apply glue, wrap the metal conductor in step 1, cut off the excess Teflon material, and glue the interfaces at both ends of the Teflon;

[0017] Step 4: Place the product in step 3 in an oven at 300-350 degrees Celsius and bake for 40-60 seconds, then cool.

[0018] Step 5: Place several products from step 4, i.e., metal conductors containing a protective layer, a glue layer, and a Teflon layer processed in the above steps side by side, and wrap them with a cable core to obtain the product.

[0019] As a further improvement, it is characterized in that: after step five, a barrier layer is wrapped around the outer layer of the cable core.

[0020] Beneficial effects of the invention: The high-temperature Teflon waterproof high-voltage wire and cable and its manufacturing process provided by the invention can be used under high temperatures. By utilizing the excellent heat resistance of Teflon, even under high temperatures in summer, when electricity consumption is at a peak and the thermal effect of current is significant, the line will not fuse. The cable is composed of multiple metal conductors and can be used to transmit electricity under high voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Among them: 1-metal conductor layer, 2-protective layer, 3-glue layer, 4-Teflon layer, 5-cable core, 6-barrier layer. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0024] A high-temperature Teflon waterproof high-voltage wire and cable comprises a plurality of metal conductor layers 1 and a Teflon layer 4, wherein the metal conductor layer 1 is provided with a protective layer 2, the protective layer 2 is coated with a glue layer 3, the glue layer 3 is bonded to the inner surface of the Teflon 4, and a plurality of metal conductor layers 1 connecting the protective layer 2, the glue layer 3 and the Teflon layer 4 are connected to a cable core 5, the Teflon layers 4 are provided with a glue layer 3, and are bonded to each other, the outer surface of the Teflon layer 4 and the inner surface of the cable core 5 are provided with a glue layer 3, and are bonded to each other, the metal conductor layer 1 is obtained by winding a plurality of metal wires, and the cable core 5 is externally connected to a barrier layer 6. The metal conductor is made of copper, and the protective layer is a silver-plated layer.

[0025] The manufacturing process of the high-temperature Teflon waterproof high-voltage wire and cable as described above has the following specific steps:

[0026] Step 1: Immerse the copper body in the silver solution for 1 minute, draw the wire, and stretch it to 5 times of the original length. Then immerse it in the protective solution for another minute and continue drawing the wire. Repeat this process 3 times to wrap the three copper wires together to form a conductor layer.

[0027] Step 2: Make glue, take 10% concentrated nitric acid, 15% silicon fluoride solution, 3% defoamer, 6% leveling agent, and the balance toluene, mix and stir to make glue;

[0028] Step 3: Bake and soften one side of the Teflon material sheet and apply glue to it, wrap the copper conductor in step 1, cut off the excess Teflon material, glue the interfaces at both ends of the Teflon, apply glue to the outer surface of the Teflon layer, arrange them side by side, and then bond them to the inner surface of the cable core;

[0029] Step 4: Place the product in step 3 in an oven at 350 degrees Celsius and bake for 40 seconds, then cool.

[0030] Step 5: Place several products from step 4, i.e., copper conductors with protective layers, glue layers, and Teflon layers processed in the above steps side by side, and wrap them with a cable core to obtain the product;

[0031] Step 6: After step 5, a barrier layer is wrapped around the outer layer of the cable core to increase wear resistance and waterproof performance.

[0032] The present embodiment provides a high-temperature Teflon waterproof high-voltage wire and cable, which can be used under high temperatures. By utilizing the excellent heat resistance of Teflon, even in the high temperatures of summer, when electricity consumption is at a peak and the thermal effect of current is significant, the line will not fuse. The cable is composed of multiple metal conductors and can be used to transmit electricity under high voltage.

Claims

1. A manufacturing process for high-temperature Teflon waterproof high-voltage wire and cable, characterized in that: High-temperature Teflon waterproof high-voltage wire and cable, comprising a plurality of metal conductor layers and Teflon layers, the metal conductor layer is provided with a protective layer outside, the protective layer is coated with a glue layer outside, the glue layer is bonded to the inner surface of Teflon, and a plurality of connecting protective layers, glue layers and Teflon layers are connected to the cable core; a glue layer is provided between the Teflon layers, which are bonded to each other; a glue layer is provided between the outer surface of the Teflon layer and the inner surface of the cable core, which are bonded to each other; the metal conductor layer is obtained by winding a plurality of metal wires with each other; the cable core is connected to the barrier layer outside; The specific steps are as follows: Step 1: Immerse the metal conductor in the protective liquid for 1 to 3 minutes, draw it, and stretch it to 5 to 8 times of its original length, then immerse it in the protective liquid for another 1 to 3 minutes, and continue drawing it, and repeat this process 3 times; Step 2: Make glue, take 10-30% concentrated nitric acid, 10-15% fluorine-containing solution, 3-5% defoamer, 6-8% leveling agent, and the balance is toluene, mix and stir to make glue; Step 3: Bake and soften one side of the Teflon sheet, apply glue, wrap the metal conductor in step 1, cut off the excess Teflon material, and glue the interfaces at both ends of the Teflon; Step 4: Place the product in step 3 in an oven at 300-350 degrees Celsius and bake for 40-60 seconds, then cool. Step 5: Place several products from step 4, i.e., metal conductors containing a protective layer, a glue layer, and a Teflon layer processed in the above steps side by side, and wrap them with a cable core to obtain the product.

2. The manufacturing process of high temperature Teflon waterproof high voltage wire and cable according to claim 1, characterized in that: After step 5, a barrier layer is wrapped around the outer layer of the cable core.

Images