CN103606421A - Production method for high temperature resistant electronic wire - Google Patents
Production method for high temperature resistant electronic wire Download PDFInfo
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- CN103606421A CN103606421A CN201310579110.3A CN201310579110A CN103606421A CN 103606421 A CN103606421 A CN 103606421A CN 201310579110 A CN201310579110 A CN 201310579110A CN 103606421 A CN103606421 A CN 103606421A
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- retardant layer
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Abstract
The invention discloses a production method for a high temperature resistant electronic wire. The production method comprises the following steps: S1, a conductive wire core (1) is manufactured through twisting: 20-30 original copper wires are firstly twisted so that a basic internal core wire (11) is formed, and then 40-50 original copper wires are evenly twisted on the external periphery of the basic internal core wire (11) so that an external layer twisting wire (12) is formed; S2, a flame-retardant layer (2) is arranged: well-blending flame-retardant agent molten material is evenly arranged on the external periphery of the conductive wire core (1) so that the flame-retardant layer (2) is formed; S3, an insulating layer (3) is arranged: well-blending insulating paste material is evenly arranged on the external periphery of the flame-retardant layer (2) so that the insulating layer (3) is formed; S4, a commodity label is printed: a group of commodity labels are printed on the surface of the electronic wire in every internal of 15cm-20cm; and S5, packaging is detected. The flame-retardant layer is arranged between the conductive wire core and the insulating layer so that high temperature resistance of the electronic wire is greatly enhanced, and thus heat resistance and safety performance of the whole electronic wire are enhanced.
Description
Technical field
The present invention relates to electric wire technical field, particularly a kind of production method of high temperature resistant electric wire.
Background technology
Electric wire is the inner wire that connects the unit that respectively switches on of electric equipment, electronic instrument, and electric wire conventionally be take and led to light current as main, has the characteristic of bigger difference with the cable of forceful electric power category.Existing electric wire normally consists of conductor wire core and insulation integument, and wherein, conductor wire core adopts single bundle or multi beam copper wire to form, and insulating barrier adopts rubber layer to make.
Along with electrical equipment, electronic product develop towards microminiaturization, also more and more higher to the requirement of electric wire, particularly at aspects such as high temperature resistant, resistance to wear, flexibilities, there is more and more higher requirement.
In realizing process of the present invention, inventor finds that prior art at least exists following problem: existing electric wire resistance to elevated temperatures is bad, generally at 80 ℃ of its insulating barriers of left and right, just occurs softening, and is even burned; On the other hand, the pliability of existing electric wire is also bad, and particularly the electric wire of some moving parts needs constantly reversed torsion, and existing electric wire torsional property is poor.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of production method of high temperature resistant electric wire.Described technical scheme is as follows:
A kind of production method of high temperature resistant electric wire is provided, and described production method comprises the following steps:
S1, twist conductor wire core processed, first 20～30 original copper skein silks are closed to basis of formation internal core wire, then 40～50 original copper wires are formed to outer twisted wire around strand in the periphery of described basic internal core wire equably, described outer twisted wire with the strand of described basic internal core wire to contrary.
For twisting the specification requirement of the described original copper wire of the described conductor wire core of system, be: copper purity is greater than or equal to 99.8%, and diameter is 0.03mm～0.05mm, and diameter deviation degree is less than or equal to 1%.
The specification requirement of the described conductor wire core that strand makes is: pitch is 5.0mm～8.0mm, and nominal area of section is 0.75mm
2～1.25mm
2.
S2, arranges flame-retardant layer, and the periphery that deployed fire retardant melting charge is arranged on equably to described conductor wire core forms described flame-retardant layer, and described flame-retardant layer is organophosphorous fire retardant layer, and the thickness of described flame-retardant layer is 0.05mm～0.06mm.
The processing technology of described flame-retardant layer is: first, preparation flame-retardant mixture, by the melting under 185 ℃～200 ℃ conditions of the phosphorous acid vinyl acetate of the chlorinated paraffin wax of the polypropylene of 89～94wt%, 1～3wt% and 5～8wt%; Then described conductor wire core is passed and is slowly escorted out the mould that arranges of described flame-retardant layer.
S3, arranges insulating barrier, and the periphery that deployed insulation compound is arranged on equably to described flame-retardant layer forms described insulating barrier, and the thickness of described insulating barrier is 0.1mm～0.15mm, and the thickness deviation of described insulating barrier is less than or equal to 0.003mm.
The processing technology of described insulating barrier is:
S301, preparation insulation compound stirs the polytetrafluoroethylene of the polyvinyl chloride of 20～35wt% and 65～80wt% melting and fully mixes under 350 ℃～355 ℃ conditions.
S302, will wrap the insulating barrier processing mold of the described conductor wire core of described flame-retardant layer through the good insulation compound of splendid attire, and described conductor wire core has been connected with draught line.
S303, adjusts the centrad of described conductor wire core, makes described conductor wire core be positioned at the center of insulating barrier processing mold, guarantees that the misalignment degree of described conductor wire core is less than or equal to 0.005mm, electric wire described in extrusion at a slow speed then, and pass through water quench.
S4, printing commodity sign, described electric wire after step S3, through commodity sign printing equipment, on described electric wire surface in 15cm～20cm printing one group of commodity sign.
Before described electric wire enters commodity sign printing equipment, need to blow water treatment to described electric wire.
S5, detects packing, and the described electric wire that step S4 is printed to the commodity sign test of cremating, picks out substandard product, and qualified products are packed to warehouse-in.
Further, between described flame-retardant layer and described insulating barrier, be provided with temperature control alarming line, described temperature control alarming line is close to described flame-retardant layer setting, and described temperature control alarming line is partly embedded in described flame-retardant layer.
The temperature that described temperature control alarming line senses is during higher than described electric wire maximum operating temperature, and described temperature control alarming alignment working equipment sends alarm signal.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By flame-retardant layer being set between conductor wire core and insulating barrier, greatly improved the resistance to elevated temperatures of this electric wire.Electric wire is often because conductor wire core heating burns out insulating barrier, thereby damage equipment even has an accident, this electric wire is owing to being provided with flame-retardant layer, and this flame-retardant layer has deadened the heat that partially conductive core produces, thereby has improved heat resistance and the security performance of whole electric wire.
The copper purity that forms the original copper wire of conductor wire core is greater than or equal to 99.8%, and diameter is 0.03mm～0.05mm, and diameter deviation degree is less than or equal to 1%, has improved on the one hand the suppleness of electric wire, has improved on the other hand the stability of energising.
Insulating barrier is the mixed layer of polyvinyl chloride and polytetrafluoroethylene, has greatly improved resistance to elevated temperatures and the anti-wear performance of insulating barrier itself, and existing PVC insulated with material layer starts to soften in the time of 80 ℃～85 ℃, in the time of 130 ℃, becomes viscoplasticity, and heat resistance is undesirable.Both mixtures, have both advantage concurrently, particularly in the time of 200 ℃, still can work.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the electric wire cross section structure schematic diagram that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
The present embodiment provides a kind of production method of high temperature resistant electric wire, please refer to Fig. 1, and the production method of this high temperature resistant electric wire comprises the following steps:
S1, twists conductor wire core 1 processed, first 20～30 original copper skein silks is closed to basis of formation internal core wire 11, then 40～50 original copper wires are formed to outer twisted wire 12 around strand in the periphery of basic internal core wire 11 equably, outer twisted wire 12 with the strand of basic internal core wire 11 to contrary.Like this, forward and reverse stranded conductor wire core forming 1, its torsional property is better, is reversed in the same way be also unlikely to many original copper wires that form conductor wire core 1 to split off in many weeks, and then affects the electric conductivity of this conductor wire.
For twisting the specification requirement of the original copper wire of conductor wire core 1 processed, be: copper purity is greater than or equal to 99.8%, and diameter is 0.03mm～0.05mm, and diameter deviation degree is less than or equal to 1%.Wherein, original copper wire is to adopt just copper metallurgy wire drawing to form, and the copper that can not use copper scrap to refine to form is as raw material, and like this, mechanical strength and the pliability of original copper wire are better; Copper purity is greater than or equal to 99.8%, and in original copper wire, the content of copper is greater than or equal to 99.8%; Diameter deviation degree is less than or equal to 1%, that is: the original copper wire that is 0.03mm for diameter, and the diameter at the minimum place of this original copper wire, than the maximum little 0.03mm * 1%=0.0003mm of 0.03mm, is also that minimum diameter should equal 0.0297mm; The diameter of the maximum of this original copper wire, than the most much 0.03mm * 1%=0.0003mm of 0.03mm, is also that minimum diameter should equal 0.0303mm.Like this, guaranteed the consistency of this original copper wire mechanical strength and electric conductivity.
The specification requirement of the conductor wire core 1 that strand makes is: pitch is 5.0mm～8.0mm, and nominal area of section is 0.75mm
2～1.25mm
2.After the stranded moulding of conductor wire core 1, guarantee that pitch is 5.0mm～8.0mm, nominal area of section is 0.75mm
2～1.25mm
2, make the neither stranded intensity that too tightly affects this conductor wire core, be also unlikely to the too loose electric conductivity that affects.
S2, arranges flame-retardant layer 2, and the periphery that deployed fire retardant melting charge is arranged on equably to conductor wire core 1 forms flame-retardant layer 2, and flame-retardant layer 2 is organophosphorous fire retardant layer, and the thickness of flame-retardant layer 2 is 0.05mm～0.06mm.Flame-retardant layer 2 is set, improved the resistance to elevated temperatures of this electric wire, can under the condition of 200 ℃, work, also can avoid the generation of the accidents such as fire simultaneously, first general electric wire heating is burned what catch fire is insulating barrier, and this electric wire arranges flame-retardant layer 2 between conductor wire core 1 and insulating barrier 3, can effectively avoid the generation of fire.
The processing technology of flame-retardant layer 2 is: first, preparation flame-retardant mixture, by the melting under 185 ℃～200 ℃ conditions of the phosphorous acid vinyl acetate of the chlorinated paraffin wax of the polypropylene of 89～94wt%, 1～3wt% and 5～8wt%; Then conductor wire core 1 is passed and is slowly escorted out the mould that arranges of flame-retardant layer 2.The mixture fire retardant of said components, and what form is flame-retardant layer as thin as a wafer, has both had good flame retardant effect, is unlikely to the too thick flexibility that affects electric wire.
S3, arranges insulating barrier 3, and the periphery that deployed insulation compound is arranged on equably to flame-retardant layer 2 forms insulating barrier 3, and the thickness of insulating barrier 3 is 0.1mm～0.15mm, and the thickness deviation of insulating barrier 3 is less than or equal to 0.003mm.Wherein, the thickness deviation of insulating barrier 3 is less than or equal to 0.003mm, that is to say, the insulating barrier 3 that the 0.1mm of take is thick is example, and the thickness of this insulating barrier 3 can only be 0.103mm, and the thinnest part of this insulating barrier 3 can only be 0.097mm.Like this, guarantee the basic bosom in insulating barrier 3 of conductor wire core 1, made the pliability of this electric wire and twisting property better.
The processing technology of insulating barrier 3 is:
S301, preparation insulation compound stirs the polytetrafluoroethylene of the polyvinyl chloride of 20～35wt% and 65～80wt% melting and fully mixes under 350 ℃～355 ℃ conditions.Like this, can make the abundant melting mixing of polyvinyl chloride and polytetrafluoroethylene, be unlikely to again by burnt; And the mechanical strength of both mixtures and anti-wear performance and resistance to elevated temperatures are stronger.
S302, will wrap the insulating barrier processing mold of the conductor wire core 1 of flame-retardant layer 2 through the good insulation compound of splendid attire, and conductor wire core 1 has been connected with draught line.Like this, while being coated with insulating layer coating, only need to open insulating barrier processing mold, with draught line, pull conductor wire core 1 can make insulation compound cover equably the periphery of flame-retardant layer 2.
S303, adjusts the centrad of conductor wire core 1, makes conductor wire core 1 be positioned at the center of insulating barrier processing mold, guarantees that the misalignment degree of conductor wire core 1 is less than or equal to 0.005mm, extrusion electric wire at a slow speed then, and pass through water quench.Wherein, the misalignment degree of guaranteeing conductor wire core 1 is less than or equal to 0.005mm, be that the center line of conductor wire core 1 and the mould axle center of insulating barrier processing mold differ apart from being less than or equal to 0.005mm, like this, can process after upper insulating barrier 3 by basic guarantee, conductor wire core 1 is positioned at the center of insulating barrier 3 substantially.Like this, the pliability of electric wire and ageing resistance are better.
S4, printing commodity sign, electric wire after step S3, through commodity sign printing equipment, on electric wire surface in 15cm～20cm printing one group of commodity sign.
Before electric wire enters commodity sign printing equipment, need to blow water treatment to described electric wire.
S5, detects packing, and the electric wire that step S4 is printed to the commodity sign test of cremating, picks out substandard product, and qualified products are packed to warehouse-in.
Preferably, between flame-retardant layer 2 and insulating barrier 3, be provided with temperature control alarming line 4, temperature control alarming line 4 is close to flame-retardant layer 2 and is arranged, and temperature control alarming line 4 parts are embedded in flame-retardant layer 2.The temperature that temperature control alarming line 4 senses is during higher than electric wire maximum operating temperature, and temperature control alarming line 4 sends alarm signal to working equipment.
The method to set up of temperature control alarming line 4 is: after being processed into flame-retardant layer 2, introduce temperature control alarming line 4, temperature control alarming line 4 is sent in insulating barrier processing mold together with flame-retardant layer 2 near flame-retardant layer 2 and with conductor wire core 1, be insulated sizing material and wrap.
The miscellaneous part of the present embodiment and composition are identical with embodiment mono-, and this is no longer going to repeat them.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a production method for high temperature resistant electric wire, is characterized in that, described production method comprises the following steps:
S1, twist conductor wire core processed (1), first 20～30 original copper skein silks are closed to basis of formation internal core wire (11), again 40～50 original copper wires are formed to outer twisted wire (12) around strand in the periphery of described basic internal core wire (11) equably, described outer twisted wire (12) with the strand of described basic internal core wire (11) to contrary;
The specification requirement that is used for twisting the described original copper wire of the described conductor wire core of system (1) is: copper purity is greater than or equal to 99.8%, and diameter is 0.03mm～0.05mm, and diameter deviation degree is less than or equal to 1%;
The specification requirement of the described conductor wire core (1) that strand makes is: pitch is 5.0mm～8.0mm, and nominal area of section is 0.75mm
2～1.25mm
2;
S2, flame-retardant layer (2) is set, the periphery that deployed fire retardant melting charge is arranged on equably to described conductor wire core (1) forms described flame-retardant layer (2), and described flame-retardant layer (2) is organophosphorous fire retardant layer, and the thickness of described flame-retardant layer (2) is 0.05mm～0.06mm;
The processing technology of described flame-retardant layer (2) is: first, preparation flame-retardant mixture, by the melting under 185 ℃～200 ℃ conditions of the phosphorous acid vinyl acetate of the chlorinated paraffin wax of the polypropylene of 89～94wt%, 1～3wt% and 5～8wt%; Then described conductor wire core (1) is passed and is slowly escorted out the mould that arranges of described flame-retardant layer (2);
S3, insulating barrier (3) is set, the periphery that deployed insulation compound is arranged on equably to described flame-retardant layer (2) forms described insulating barrier (3), and the thickness of described insulating barrier (3) is 0.1mm～0.15mm, and the thickness deviation of described insulating barrier (3) is less than or equal to 0.003mm;
The processing technology of described insulating barrier (3) is:
S301, preparation insulation compound stirs the polytetrafluoroethylene of the polyvinyl chloride of 20～35wt% and 65～80wt% melting and fully mixes under 350 ℃～355 ℃ conditions;
S302, will wrap the insulating barrier processing mold of the described conductor wire core (1) of described flame-retardant layer (2) through the good insulation compound of splendid attire, and described conductor wire core (1) has been connected with draught line;
S303, adjust the centrad of described conductor wire core (1), make described conductor wire core (1) be positioned at the center of insulating barrier processing mold, guarantee that the misalignment degree of described conductor wire core (1) is less than or equal to 0.005mm, then electric wire described in extrusion at a slow speed, and pass through water quench;
S4, printing commodity sign, described electric wire after step S3, through commodity sign printing equipment, on described electric wire surface in 15cm～20cm printing one group of commodity sign;
Before described electric wire enters commodity sign printing equipment, need to blow water treatment to described electric wire;
S5, detects packing, and the described electric wire that step S4 is printed to the commodity sign test of cremating, picks out substandard product, and qualified products are packed to warehouse-in.
2. according to the production method of the high temperature resistant electric wire described in claim 1 or 2, it is characterized in that, between described flame-retardant layer (2) and described insulating barrier (3), be provided with temperature control alarming line (4), described temperature control alarming line (4) is close to described flame-retardant layer (2) setting, and described temperature control alarming line (4) part is embedded in described flame-retardant layer (2);
The temperature that described temperature control alarming line (4) senses is during higher than described electric wire maximum operating temperature, and described temperature control alarming line (4) sends alarm signal to working equipment.
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| CN201310579110.3A CN103606421B (en) | 2013-11-18 | 2013-11-18 | A kind of production method of high-temperature resistant electronic wire |
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| CN201310579110.3A CN103606421B (en) | 2013-11-18 | 2013-11-18 | A kind of production method of high-temperature resistant electronic wire |
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| CN103606421B CN103606421B (en) | 2015-11-04 |
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Cited By (5)
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| CN104008823A (en) * | 2014-06-20 | 2014-08-27 | 北京斯普乐电线电缆有限公司 | Crude oil engine oil atomizer wiring conductor glue filling sealing method and device |
| CN104217799A (en) * | 2014-08-27 | 2014-12-17 | 南京创贝高速传动机械有限公司 | Flexible composite cable and preparation method thereof |
| CN106098243A (en) * | 2016-05-31 | 2016-11-09 | 浙江汇力胶囊有限公司 | A kind of production technology of solar photovoltaic cable |
| CN111755164A (en) * | 2020-06-15 | 2020-10-09 | 昆山键讯电子有限公司 | Enameled stranded wire of earphone wire and production process |
| CN113276454A (en) * | 2021-04-22 | 2021-08-20 | 江西新永海电子科技有限公司 | Preparation method of flame-retardant copper-clad plate |
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| CN113276454A (en) * | 2021-04-22 | 2021-08-20 | 江西新永海电子科技有限公司 | Preparation method of flame-retardant copper-clad plate |
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