KR101059192B1 - Static electric heating line structure and manufacturing method with improved bendability - Google Patents

Abstract

The present invention is to form a garden of round shape in the cross-section in insulating the heating wire with a heat-resistant resin, and the inner conductor is spaced apart from each other and the stripped parts are twisted with each other to form a pair of conductor cable wound around the heating wire to the cross-section The present invention relates to a structure and a manufacturing method of an electrostatic heating line having improved bendability configured to have a rounded garden, and a conductor manufacturing process of manufacturing a conductive wire 10 having an insulating layer 12 formed on a single conductor 11 such as copper wire. Phosphorus first step; A second step of removing the insulating layer 12 in a ring shape so as to expose the conductors 11 at regular intervals, thereby forming a tangent portion 13; A third step, which is a cable configuration step of constituting the conductor cable 15 so that the tangential portion 13 is staggered from each other; The fourth step, which is a heating wire forming step of winding and soldering or soldering the heating wire 20, which is a resistor, to the grounding part 13 formed by peeling the insulating layer 12 outside the conductive cable 15. and; A fifth step of forming a circular inner coating layer to form a circular inner coating layer 30 by extrusion-insulating the heating wire 20 to be circularly formed with a heat resistant resin such as silicone rubber or fluorine resin on the outside of the heating wire 20; The outer shell structure constituting the braid layer 40 formed of reinforcing fibers made of glass fibers or the like on the outside of the circular inner coating 30 and extruded and insulated with a heat resistant resin such as silicone rubber or fluorine resin on the outside thereof. In the sixth step, which is a step, wherein the conductor layer 15 is separated from the insulating layer 12 so that the conductors 11 are exposed at regular intervals so that the contact portions 13 exposed by the conductors 11 alternately constitute each other. The heating wire 20, which is a resistance body, is wound so as to be grounded to the tangential portion 13 in which the insulating layer 12 is peeled off, to form a circular inner coating layer 30, and to a reinforcing fiber such as glass fiber. By constructing the braided layer 40 and the outer shell 50 insulated by heat-resistant resin, such as silicone rubber and fluorine resin, in order to form a constant power heating line with improved bendability, not only generates high heat, Power consumption due to stable heat generation with the same resistance The amount is stable and the heating line's performance and thermal efficiency are increased, which leads to energy saving effect. The whole structure is made of rounded gardens, so that the bending is smooth when the heating line is constructed. The new invention prevents the risk of disconnection or fire due to concentrated stress after construction.

Conductor, conductor, insulation layer, tangent, conductor cable, heating wire, circular inner sheath layer, braided layer, sheath.

Description

Structure and manufacturing method for constant wattage heating cable with improved bending properties

The present invention is to form a garden with a round shape in cross-section in the insulation of the heating wire used to prevent freezing or freezing of not only fire-extinguishing pipes used in buildings and tunnels, but also other general water pipes as well as floor heating. Bending improved electrostatic heating line structure and manufacturing method which constitutes a pair of conductor cables by twisting the conductors apart from each other and the stripped parts are twisted with each other and wound around the heating wire will be.

In general, electrostatic heating lines are used for floor heating, as well as fire pipes used in buildings and tunnels, as well as other general water pipes as freezing or freezing.

Such a heating wire used a graphite heating wire, but the graphite heating wire has a very weak strength, so that the durability of the graphite heating wire is easily broken due to the damage, and the power consumption is high.

In this development, carbon fiber yarns were developed as hot wires, which made it possible to manufacture power-saving products with superior tensile strength and low power consumption compared to conventional graphite hot wires or other materials, but this is considerably more expensive than conventional graphite hot wires or other materials. In the case of using the carbon fiber yarn, there is a problem in that it can inevitably lead to an increase in the price of the product, and thus has a limitation in that it can be applied to many fields.

In Patent Application No. 96-48224, the heating wire is composed of linear carbon glass fibers, and a shielding layer is formed with an insulating layer interposed so as to completely surround the outer circumferential surface of the heating wire, thereby connecting the heating wire and one end of the shielding layer. Then, by applying power through the other end, the direction of the magnetic field formed in the heating line and the magnetic field formed in the shielding layer to be opposite to each other to cancel the magnetic field generated in the heating wire mutually, Patent Application No. 97-45321 In this case, when the power is applied to the heating wire, the shielding layer has an earth ground potential (that is, connected to the earth, or connected to a power line having an earth ground potential, or connected to a virtual ground point). The electric field (electric wave, electric charge) is discharged from the heating wire (H) by emitting a ground or a power supply line having a grounding potential or a virtual grounding point. Magnetic wave was removed, and Patent Registration No. 10-0309318 (September 06, 2001) is designed to block electromagnetic waves generated from heating wires used as heat sources for electric heat insulators such as electric blankets, electric blankets, electric blankets, electric cushions, and electric packs. A heating wire for electromagnetic wave shielding, and in particular, a heating wire for arranging one or more heating elements in a straight line to form a heating element of a single core or a multi-core straight line; A first insulating layer formed to surround an outer circumferential surface of the heating wire; A second insulating layer formed to surround the outer circumferential surface of the first insulating layer; A shielding layer comprising an aluminum thin film formed to surround an outer circumferential surface of the second insulating layer, and at least one conductive wire wound around the aluminum thin film; An outer insulation layer formed to surround the outer circumferential surface of the shielding layer was configured to constitute a heating wire for electromagnetic wave blocking.

Utility Model Registration No. 20-0168362 (1999.11.09) is provided with multiple strands of twisted copper wire, a first Teflon layer extruded with Teflon to cover the copper wire, and a dielectric breakdown voltage of the first Teflon layer. A second teflon layer extruded with Teflon on the outer circumferential surface of the first teflon layer to increase the pressure, and a spiral shape on the second teflon layer to absorb heat and simultaneously release the magnetic field emitted from the copper wire when the power is applied. A heating element wound around the asbestos, an asbestos braid layer braided with asbestos on the heating element to fix a portion of the heat generated by the heating element, and to partially block heat generated by the heating element, and an insulating layer formed on the asbestos braid layer. Utility Model Application No. 1991-0017173 (1991.10.16) prevents short-circuit of thermal wires such as electric plates and lamps, and detects one heating wire and two centering around three core wires with low thermal deformation. At the same time as the wound was applied to the thermistor 4, warmth strata above.

Patent Registration No. 10-0873056 (2008.12.03) uses a low-cost glass fiber yarn and a metal yarn having a diameter of 0.08 ~ 0.09mm with Ti, Mn, Ni, Fe alloy, along the longitudinal outer periphery of the glass fiber yarn After twisting and twisting three strands of metal yarn spirally, the glass fiber yarn and three strands of metal yarn are impregnated in the adhesive solution in which the high molecular resin is melted to provide a heating wire, thereby providing a low-cost glass fiber yarn and metal yarn ( For example, Ti, Mn, Ni, Fe alloy) three twisted strands are produced, but the power consumption according to the tensile strength and electrical resistance is superior to the conventional carbon fiber yarn, thereby reducing the manufacturing cost to provide for use in various fields, as well as Excellent tensile strength and low power consumption according to the electrical resistance has the effect of providing excellent use reliability.

The heating wires described above are mainly focused on suppressing electromagnetic shielding and power consumption, and are mainly used for electric yo-yos and floor mats that have a lot of contact with humans in life. Was done.

This is because the wires and heating wires are not separated, and the entire section loses heat generation function when a certain section is broken.Therefore, there was a lot of problems. Therefore, it was newly developed for industrial use. Until the conductors of the two wires are not connected at regular intervals, they are grounded with different lengths, and the heat generation becomes unstable due to the occurrence of different resistances in each part, which increases the power consumption, and the energy loss is large due to the poor performance and thermal efficiency of the heating wire. The construction is not made of round gardens, so it is difficult to bend during construction of the heating line, and the construction is difficult due to the bending phenomenon in the bending area, and there are many problems such as disconnection due to stress concentration after construction and a fire due to this. there was.

The present invention aims to overcome this problem of the prior art.

The present invention for solving the problems that have been a problem up to now, is a wire manufacturing process for producing a wire with an insulating layer by extrusion insulation to be coated with a heat-resistant resin such as silicon, fluorine resin on a single conductor such as copper wire 1 step; A second step of insulating layer stripping step of forming a tangential part by stripping and removing the insulating layer in a ring shape so that conductors are exposed at regular intervals from the wire manufactured in the first step of wire manufacturing step; In the second step of the insulating layer stripping process, the third step is a cable configuration step of forming a conductive cable in which the tangents are spaced apart from each other by connecting the two stranded wires having the tangents exposed to the conductor by removing the insulating layers at regular intervals. and; In the third step of the cable configuration step, the heating wire configuration process of winding the solder wire or lead-dipped by combining the heating wire, which is a resistor, on the outside of the conductor cable configured to be spaced apart from each other with the contact parts separated from the insulating layer. A fourth step; A fifth step of forming a circular inner coating layer by extruding insulation to form a circular inner coating layer on the outside in which the heating wire is wound in a heat resistant resin such as silicone rubber and fluorine resin; The outer shell structure formed by the reinforcing fiber made of glass fiber or the like is formed on the outside of the circular inner coating formed in the fifth step of the circular inner coating forming process, and the outer shell structure is extruded and insulated with heat-resistant resin such as silicone rubber or fluorine resin In the sixth step of the process, the two strands of the wires forming the tangential part by stripping and removing the insulating layer in a ring shape so that the conductors are exposed at regular intervals are twisted by the tangential parts of the exposed conductors to form a single conductor cable. In this case, the heating wire wound as a resistor is bonded by soldering or lead-dipping so that the insulating layer is grounded to the peeled tangential part, and a circular inner coating layer is formed on the outside to form a circle with heat-resistant resin such as silicone rubber and fluorine resin Extruded insulation with braided layer made of reinforcing fiber such as glass fiber and heat-resistant resin such as silicone rubber and fluorine resin The conductor exposes the two stranded wires which form a tangential part by forming an electrostatic heating line having improved bendability by sequentially forming an outer shell, or by removing the insulating layer in a ring shape so that the conductors are exposed at regular intervals. The tangents are arranged side by side with each other to form a constant power heating line with improved bendability of the conductor cable.

In addition, the first step of the cable configuration step of forming a conductor cable with an insulating layer by extrusion insulation with heat-resistant resin such as silicon, fluorine resin so that two conductors such as copper wires are separated from each other; A second step of insulating layer stripping step of forming a tangential part by stripping and removing the insulating layer so that the conductors of the two strands are alternately exposed to each other at regular intervals to the wire cable constructed in the cable forming step as the first step; In the insulating layer stripping process of the second step, the tangential portion is stripped alternately one by one in turn to the two stranded conductors so that the heating wire, which is a resistor, is grounded to the tangential portion formed by peeling the insulating layer from the outside of the conductive cable. A third step, which is a heating wire forming step of winding and soldering or lead-dipping to combine; A fourth step of forming a circular inner coating layer by extruding insulation to form a circular inner coating layer on the outside in which the heating wire is wound in a heat resistant resin such as silicone rubber and fluorine resin; The outer shell structure formed by the reinforcing fiber made of glass fiber or the like on the outside of the circular inner coating formed in the fourth step of the circular inner coating forming step, and the outer shell structure which is extruded and insulated with heat-resistant resin such as silicone rubber and fluorine resin A fifth step, which is a step, wherein a conductor cable having an insulation layer formed by extrusion-insulating with heat-resistant resin such as silicon or fluorine resin so that two conductors such as copper wires are separated from each other is fixed so that the two wires are alternately exposed to each other. Form a tangential part by peeling and removing the insulating layer so that the conductors are exposed at intervals, and the heating wire, which is a resistor, is wound around the tangential part formed by peeling the insulating layer, and soldered or lead-dipped and bonded to the outside. A circular inner coating layer is formed to form a circle with heat-resistant resin such as silicone rubber and fluorine resin, and the glass fiber is reinforced on the outside. It consists of a braided layer made of fibers and an outer sheath that is insulated by heat-resistant resin such as silicone rubber and fluorine resin in order to form an electrostatic heating line with improved bendability, or two conductors such as copper wire are separated from each other. The electrostatic electric heating line with improved bendability is constructed so that the insulating layer extruded and insulated with heat-resistant resin, such as silicone and fluororesin, may be circular in cross section.

In the present invention described above, the conductors of the two wires are separated from each other at regular intervals, and the heating wires wound around the outside are alternately grounded to form a constant interval on the different conductors to generate high heat as well as more than 10 years in a single construction. It can be used for a long time. Even if the heating wire inside the wire is partially disconnected due to the heat generated by the meter-section, the heating is stopped only in the part and the rest of the heat is generated.This heating wire with strong weatherability, flexibility and chemical resistance is constructed and handled. This easy, low cost, easy-to-use application is available, and external braiding and additional sheath are available as options for use in hazardous areas or where external mechanical strength and continuous grounding are required. Almost no deviation and various structure and calorie design to meet the needs of consumers Not only has the advantage of being possible, but also stable heat generation with the same resistance to stabilize the power consumption, heating line performance and thermal efficiency is increased, causing energy saving effect, the overall configuration is made of round garden, bending during construction of the heating line This is a novel invention that prevents the possibility of breakage or fire due to the concentration of stress after the construction, as well as ease of construction because the bending phenomenon does not occur in the bent portion is made smoothly.

Referring to the present invention described above in detail according to the embodiment is as follows.

Example 1

First step; Wire manufacturing process

Single conductor 10 having an insulating layer is continuously and repeatedly manufactured by extrusion insulation to be coated with a heat-resistant resin such as silicon or fluorine resin on a conductor 11 such as copper wire of the present invention.

Second process; Insulation Stripping Process

The tangential portion 13 at equal intervals is formed by stripping and removing the insulating layer 12 in a ring shape so that the conductor 11 is exposed at regular intervals. .

Third process; Cable composition process

In the insulating layer stripping process as the second process, the insulating layer 12 is removed at regular intervals so that the tangent portions 13 cross each other with two strands of conductors forming the tangent portion 13 with the conductor 11 exposed. The lead wire cable 15 is spaced apart.

At this time, the insulating layer 12 is removed at regular intervals so that the two strands of conductors 10 forming the tangential portion 13 exposed by the conductor 11 are arranged so that the tangential portions 13 are alternately spaced apart from each other. Alternatively, the insulating layer 12 may be removed at regular intervals so that the tangent portions 13 are alternately spaced apart from each other in the conductor 10 having two strands forming the tangent portion 13 where the conductor 11 is exposed. It can also be twisted.

Here, it is advantageous to twist the two conductors 10 together in actual work or in terms of the quality of the finished product. At this time, the degree of twisting is not particularly limited, but if the twist is too much, the usage of the material increases and flexibility is reduced. A problem arises.

4th process; Heating wire composition process

In the third step of the cable configuration step, the tangential portion formed by peeling the insulation layer 12 from the heating wire 20, which is a resistor, on the outside of the conductor cable 15 formed by tangentially arranged side by side with the tangential portions 13 staggered apart. Solder or solder dipped to (13) and ground them to be joined.

In this case, soldering or lead dipping may be used, but when the heating wire 20 falls from the tangential part 13 in the process of forming the coating layer, defects are generated.

Fifth step; Circular Internal Coating Forming Process

In the fourth step of forming a heating wire, the circular inner coating layer 30 is formed by extruding insulation to form a circle of heat-resistant resin such as silicone rubber and fluorine resin on the outside of the heating wire 20.

 Sixth step; Skin composition process

The braided layer 40 is formed of reinforcing fibers made of glass fiber or the like on the outside of the circular inner coating layer 30 formed in the fifth step of the circular inner coating forming process, and heat-resistant resin such as silicone rubber and fluorine resin It is made by forming an outer shell 50 by extrusion insulation.

By removing the insulating layer 12 in a ring shape so that the conductors 11 are exposed at regular intervals by the above-described process, the conductors 11 have two strands of the conductors 10 forming the tangential portion 13. The exposed tangents 13 cross each other to form a single conductor cable 15, and the heating wire 20 which is a resistor is wound around the outside of the conductor cable 15 to remove the insulating layer 12. Solder or lead-dipped and bonded to the tangential portion 13 to be grounded one by one, to form a circular inner coating layer 30 to form a circle of heat-resistant resin, such as silicone rubber, fluorine resin on the outside, glass fiber, etc. A braided layer 40 made of reinforcing fibers of a reinforcing fiber, and an outer shell 50 for extruding insulation with a heat-resistant resin such as silicone rubber or a fluorine resin, in order to form a constant power heating line with improved bendability, or the constant interval Ring to expose the conductor 11 By stripping and removing the insulating layer 12, the two conductors 10 having the tangent portion 13 are arranged so that the tangent portions 13 exposed by the conductor 11 are alternately arranged side by side. 15) to the outside of the conductive wire cable 15 by winding the heating wire 20 as a resistor and soldered or lead-dipped to be grounded to the contact portion 13 formed by removing the insulating layer 12, A circular inner coating layer 30 is formed on the outside to form a circle of heat-resistant resin such as silicone rubber and fluorine resin, and a braided layer 40 made of reinforcing fibers such as glass fiber on the outside, silicone rubber, fluorine resin and the like. By constructing the outer shell 50 to be insulated by the same heat-resistant resin in turn constitutes a constant electric heating line with improved bendability.

Example 2.

First step; Cable composition process

The conductor cable 15 having the insulating layer 12 is formed by extrusion insulation with heat-resistant resin such as silicon and fluorine resin so that two conductors 11 such as copper wire are separated from each other.

In this case, the conductive wire 15 has a heating wire when the insulating layer 12 extruded and insulated with heat-resistant resin such as silicon or fluorine resin is formed so that two conductors 11, such as copper wire, are separated from each other. When the garden is formed to improve bendability, it is not necessary to form a garden in cross-section, but in order to produce a higher quality product, it is most important to make the garden.

In addition, to form a jig groove 121 to prevent twisting during stripping in the longitudinal direction on one side of the insulating layer 12 when forming the insulating layer 12 configured to be circular in cross section, or to prevent twisting during stripping operation Forming the guiding sensing line 122 is very useful during the stripping operation.

Second process; Insulation Stripping Process

The tangential portion 13 is formed by stripping and removing the insulating layer 12 so that the conductor 11 of the two strands is alternately exposed to each other at regular intervals to the conductive cable 15 constructed in the cable construction process as the first step. .

At this time, it is the most important task to strip the two conductors 11 so as to be alternately exposed at regular intervals. For this purpose, the colors of the conductors 11 are different from each other or the length of the insulating layer 12 of the conductor cable 15 is extended. Forming a marking line in the form of a guide or guide grooves so that the round conductor cable 15 is twisted during the work so that the same conductor 11 is not exposed twice in succession.

To this end, if a jig groove 121 is formed on one side of the insulating layer 12 configured to have a circular cross section in the cable construction process, which is the first step, to prevent twisting during stripping in the longitudinal direction, the jig groove 121 is referred to. If the insulating layer 30 is supplied so as not to be twisted to perform uniform stripping, or if a sensing line 122 is formed on one side of the insulating layer 12 to prevent twist in the longitudinal direction, the sensing line 122 is referred to. By supplying the insulating layer 12 so as not to be twisted, it prevents the twisting during the stripping operation of the insulating layer 12 so that the insulating layer 12 is stripped uniformly.

Third process; Heating wire composition process

In the second step of the insulation layer stripping process, the heating wire 20, which is a resistor, is formed on the outside of the conductor cable 15 in which the tangential portion 13 is alternately alternately formed on the two strands of conductors 11 once. The insulation layer 12 is wound around the tangential portion 13 formed by peeling and grounded to be soldered or lead-dipped and joined.

In this case, soldering or lead dipping may be used, but when the heating wire 20 falls from the tangential portion 13 in the process of forming the coating layer, defects are generated. Therefore, soldering or lead dipping is most suitable for perfect productability.

4th process; Circular Internal Coating Forming Process

In the third step of forming the heating wire, the heating wire 20 is formed by extruding insulation to form a circular shape with heat-resistant resin such as silicone rubber or fluorine resin on the outside of the winding wire 20 to form a circular inner coating layer 30.

Fifth step; Skin composition process

The braided layer 40 is formed of reinforcing fibers made of glass fiber or the like on the outside of the circular inner coating layer 30 formed in the fourth step of the circular inner coating forming process, and heat-resistant resin such as silicone rubber and fluorine resin The shell 50 is formed by extrusion insulation.

By the above-described process, the insulation layer 12 is formed by extrusion insulation with heat-resistant resin such as silicon or fluorine resin so that the two conductors 11, such as copper wires, are separated from each other, but the stripping operation is performed on the insulation layer 12. The insulation layer 12 is provided such that the conductor cable 15 having the jig groove 121 or the sensing line 122 long in the longitudinal direction to prevent the twist is alternately exposed to each other at regular intervals. The tangent portion 13 is formed by stripping and removing the wire, and the heating wire 20, which is a resistor, is wound on the outside of the insulating layer 12 so as to ground the tangent portion 13, and soldered or lead-dipped. By combining, to form a circular inner coating layer 30 to form a circle of heat-resistant resin, such as silicone rubber, fluorine resin on the outside, the braid layer 40 made of reinforcing fibers such as glass fiber on the outside, silicone rubber, Insulated by heat-resistant resin such as fluorocarbon resin Insulation made by forming an outer sheath 50 in order to form an electrostatic heating line with improved bendability, or by insulated by heat-resistant resin such as silicon or fluorine resin so that two conductors 11 such as copper wires are spaced apart from each other. The layer 12 has a constant power heating line with improved bendability in which the cross section is circular.

The present invention prevents freezing of pipes of buildings and industrial facilities, as well as inventions that can be carried out for heating purposes.

1 is a process chart for practicing the present invention,

2 is a process diagram for another embodiment of the present invention.

Figure 3 is an exemplary configuration state showing an embodiment of the present invention.

4 is another exemplary embodiment of the present invention.

Figure 5 is an exemplary view of a state in which the insulating layer is integrally configured in another embodiment of the present invention.

Figure 6 is an exemplary view of the guide groove configuration for performing the stripping operation of Figure 5;

7 is a diagram illustrating a marking line configuration state for performing the stripping operation of FIG.

               * Description of the major symbols in the drawings *

10: conductor 11: conductor 12: insulating layer

13: tangential part 15: wire cable 20: heating wire

30: circular inner covering layer 40: braided layer 50: shell

121: jig groove 122: sensing line

Claims (10)

delete A first step, which is a wire manufacturing step of manufacturing a conductive wire 10 having an insulating layer 12 by extrusion-insulating the single conductor 11 such as copper wire with a heat-resistant resin such as silicon or fluorine resin; Stripping and removing the insulating layer 12 to form a tangential portion 13 by stripping and removing the insulating layer 12 in a ring shape so that the conductor 11 is exposed at regular intervals. A second step which is a step; In the insulating layer stripping process of the second step, the insulating layer 12 is removed at regular intervals, so that the two strands of the conductors 10 forming the tangent portions 13 having the conductors 11 exposed are connected to the tangent portions 13. A third step, in which the cable arrangement step of constituting the conductor cable 15 is arranged to be spaced apart from each other or twisted with each other; In the third step of the cable configuration step, the heating wire 20, which is a resistor, is formed on the tangential part 13 formed by removing the insulating layer 12 from the outside of the conductive cable 15 having the tangential parts 13 staggered apart from each other. A fourth step, which is a heating wire forming step of winding and grounding soldering to be grounded one by one; In the fourth step of the heating wire construction process, the circular inner coating layer forming process to form a circular inner coating layer 30 by extruding insulation to form a circular heat-resistant resin, such as silicone rubber, fluorine resin on the outside of the heating wire 20 is wound 5 step; The braided layer 40 is formed of reinforcing fibers made of glass fiber or the like on the outside of the circular inner coating layer 30 formed in the fifth step of the circular inner coating forming process, and heat-resistant resin such as silicone rubber and fluorine resin Method for manufacturing the electrostatic heating line with improved bendability, characterized in that consisting of; sixth step, which is the outer shell constituting step of forming an outer shell (50) by extrusion insulation . delete The cable construction process of forming the conductor cable 15 formed so that the insulating layer 12 is circular in cross section by extrusion insulation with heat resistant resins, such as a silicone and a fluorine resin, so that the conductor 11 of two strands, such as a copper wire, may be spaced apart from each other. 1 step; The tangential portion 13 is formed by peeling and removing the insulating layer 12 so that the conductors 11 of the two strands are alternately exposed to each other at regular intervals to the conductive cable 15 constructed in the cable construction process as the first step. A second step which is an insulating layer stripping step; In the insulating layer stripping process as the second step, the heating portion 20 is formed on the outside of the conductor cable 15 having the tangential portion 13 stripped alternately to the two conductors 10 alternately. A third step which is a heating wire constituting step of winding and soldering or soldering the wire to the tangential part 13 formed by peeling the insulating layer 12 to be grounded; In the third heat generating wire forming process, the heat-producing wire 20 is a circular inner coating forming process of forming a circular inner coating layer 30 by extruding insulation to form a circular shape with a heat-resistant resin such as silicone rubber or fluorine resin on the outside. 4 steps; The braided layer 40 is formed of reinforcing fibers made of glass fiber or the like on the outside of the circular inner coating layer 30 formed in the fourth step of the circular inner coating forming process, and heat-resistant resin such as silicone rubber and fluorine resin And a fifth step, which is a step of constituting the outer shell constituting the outer shell 50 for extrusion insulation. By peeling and removing the insulating layer 12 in a ring shape so that the conductors 11 are exposed at regular intervals, the tangent portions in which the conductors 11 are exposed are formed by the two strands of the conductors 10 forming the tangential portions 13. 13 is a tangential portion 13 formed by twisting each other to form a single conductive wire cable 15, and winding the heating wire 20, which is a resistor, to the outside of the conductive cable 15 to remove the insulating layer 12. Soldered or lead-dipped to ground one by one, and formed with a circular inner coating layer 30 to form a circle with heat-resistant resin such as silicone rubber and fluorine resin on the outside thereof, and made of reinforcing fibers such as glass fiber on the outside thereof. An electrostatic heating line with improved bendability, characterized in that the braid layer (40) and the outer shell (50) insulated from the heat-resistant resin, such as silicone rubber and fluorine resin, are sequentially formed. The method of claim 5, By removing the insulating layer 12 in a ring shape so that the conductors 11 are exposed at regular intervals, the tangent portions of the two conductors 10 having the tangent portions 13 formed thereon are exposed. The electrostatic heating line with improved bendability, characterized in that (13) is arranged side by side alternately with each other to form the conductor cable (15). The conductor cable 15 having the insulating layer 12 formed by extrusion-insulating with heat-resistant resin such as silicon or fluorine resin is formed so that two conductors 11 such as copper wires are separated from each other, and the conductors 11 of two strands alternate with each other. The tangential portion 13 is formed by stripping and removing the insulating layer 12 so as to be exposed at regular intervals so as to be exposed to each other. The tangential portion formed by peeling the insulating layer 12 from the heating wire 20, which is a resistor, 13) wound by grounding and soldered or lead-dipped and combined to form a circular inner coating layer 30 to form a circle of heat-resistant resin, such as silicone rubber, fluorine resin on the outside, and reinforced with glass fibers on the outside An electrostatic heating line with improved bendability, characterized in that it comprises a braided layer (40) made of fibers and an outer shell (50) which is insulated by heat-resistant resin such as silicone rubber and fluorine resin. The method of claim 7, wherein Bendability, characterized in that the insulating layer 12 extruded and insulated with heat-resistant resin, such as silicon and fluorine resin, so that the two conductors 11 constituting the wire cable 15 are spaced apart from each other, to be circular in cross section. This improved electrostatic heating line. The method of claim 8, The electrostatic heating line with improved bendability, characterized in that to form a jig groove 121 to prevent twisting during stripping in the longitudinal direction on one side of the insulating layer 12 configured to be circular in cross section. The method of claim 8, The electrostatic heating line with improved bendability, characterized in that the sensing line 122 is formed on one side of the insulating layer 12 configured to be circular in cross-section to prevent twisting during stripping in the longitudinal direction.

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