CN103531277B - Heat-resisting cold-resistant flexible cable - Google Patents
Heat-resisting cold-resistant flexible cable Download PDFInfo
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- CN103531277B CN103531277B CN201310510271.7A CN201310510271A CN103531277B CN 103531277 B CN103531277 B CN 103531277B CN 201310510271 A CN201310510271 A CN 201310510271A CN 103531277 B CN103531277 B CN 103531277B
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Abstract
The invention discloses a kind of heat-resisting cold-resistant flexible cable, structure for single, including conductor and be coated on the insulating barrier that conductor is peripheral, described conductor is twisted technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, between conductor and insulating barrier, an also thermal insulation layer, this thermal insulation layer polyimides paper bag covers and forms.For the structure of multicore, including many cable cores and be coated on the sheath that these many cable cores are peripheral, cable core has implant in gap in the shape of a spiral by stranded for many cable cores, and this cable core is aforesaid heat-resisting cold-resistant flexible single-core cable.It has good flexibility, can be high temperature resistant, again the performance of low-temperature-resistant, meets the requirement of various temperature environment movable electrical appliances.
Description
Technical field
The present invention relates to cable, particularly relate to a kind of heat-resisting cold-resistant flexible cable, it can be widely applied to the movable electrical appliances of the high temperature industries such as glass, papermaking, metallurgy, is also applied for the movable electrical appliances that psychro-environment uses.
Background technology
nullHigh-temperature smelting pot is the industry visual plant such as metallurgical industry and glass，The operating temperature of high-temperature smelting pot is at 1000 DEG C even 1600 DEG C，Radiation temperature about can reach about 300 DEG C，It it is a huge test to the electric equipment around smelting furnace，Especially it is responsible for the electric wire that electrical equipment connects，Because these cables can not be completely in closed state，The harm of cable thermal radiation at any time，Cause ageing of plastics and thawing，So that cable loses original electrical property and mechanical performance at short notice，Cause power outage etc.，Additionally，Moment is opened for smelting furnace Electrically operated gate，When the loading work car of movement loads transport task continuously，Load wagon and its electrical appliance connecting wire are in high-heating radiation environment，The highest prompt radiation temperature can reach more than 400 DEG C，The electrical equipment of load wagon connects dependence special cable，This cable moves along with the movement of load wagon，It is in flexion torsion state the most at any time，Therefore the pliability of cable is required high，If the pliability of cable does not reaches requirement，The cable covering that plastics or rubber are constituted is likely to occur and ruptures，Thus cause the electric fault of mobile load wagon.According to the actual investigation to certain large-scale heavy industry forge high-temperature smelting pot working environment, temperature around smelting furnace is between 260 ~ 305 DEG C, mobile load wagon opens moment in smelting furnace Electrically operated gate, thermal radiation temperature is between 380 DEG C ~ 450 DEG C, electrical equipment tie cable is in the heat radiation state of about 420 DEG C and also to twist along with the movement of load wagon, cable in the market, general work environment is at about 200 DEG C, not only temperature resistant grade is low, and flexibility is the best, it is impossible to meet the requirement of above-mentioned use environment.
On the other hand, at the movable electrical appliances that psychro-environment uses, such as at plateau or the crane of construction site, alpine region winter construction, its cable usually can cause insulation bursting by freezing, wire brittle failure to have an accident because of low temperature.
Summary of the invention
The technical problem to be solved in the present invention is: provide one to use ambient temperature range wide, can be high temperature resistant, and the flexible cable of low-temperature-resistant again meets the requirement of various temperature environment movable electrical appliances.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of heat-resisting cold-resistant flexible single-core cable, including conductor and be coated on the insulating barrier that conductor is peripheral, described conductor is twisted technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, between conductor and insulating barrier, also having a thermal insulation layer, this thermal insulation layer polyimides paper bag covers and forms.
Described thermal insulation layer is first wrapped with polyimides paper tape, then indulges the compound heat-insulation layer packed with polyimides paper.
Described conductive wire is monel silk or pure iron metal silk, and this tinsel is concentric circular layered arrangement result, and each layer annealing process wiry difference makes each layer hot strength wiry the most different, central core to outermost layer sequentially successively decrease 3MPa.
Described silicone insulation layer is first with F46 plastic tape or wrapped one layer of polyurethane tape, recycle silicon collodion silk one layer of cylinder net of braiding, continues with one layer of prepared composite insulation layer of silica gel extrusion molding.
A kind of heat-resisting cold-resistant flexible multi-core cable, including many cable cores and be coated on the sheath that these many cable cores are peripheral, many cable cores by stranded in the shape of a spiral, cable core has implant in gap, described cable core uses the heat-resisting cold-resistant flexible single-core cable described in claim 1, this heat-resistant flexible single-core cable includes conductor and is coated on the insulating barrier that conductor is peripheral, described conductor is twisted technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, between conductor and insulating barrier, also has a thermal insulation layer, thermal insulation layer polyimides paper tape is wrapped forms for this.
Described thermal insulation layer is first wrapped with polyimides paper tape, then indulges the compound heat-insulation layer packed with polyimides paper.
Described conductive wire is monel silk or pure iron metal silk, and this tinsel is concentric circular layered arrangement result, and each layer annealing process wiry difference makes each layer hot strength wiry the most different, central core to outermost layer sequentially successively decrease 3MPa.
Described silicone insulation layer is first with F46 plastic tape or wrapped one layer of polyurethane tape, recycle silicon collodion silk one layer of cylinder net of braiding, continues and coats one layer of prepared composite insulation layer with liquid-state silicon gel.
Described implant is soft silica gel, uses extrusion process to be filled in cable core gap.
Described sheath is first with one layer of cylinder net of glass braid, the composite jacket that recycle silicon glue extrusion molding prepares.
The invention has the beneficial effects as follows:
1. the thermal insulation layer of the present invention is made up of polyimides paper, and polyimides paper tape uses wrapped and vertical job contract skill to be closely affixed on conductive surface, and minimum temperature-resistance thermal-insulation grade rises to more than 350 DEG C.Moreover, it also has good resistance to low temperature, is resistant to less than-65 DEG C low temperature, say, that this cable has good environmental adaptability, i.e. can be used for hot environment it can also be used to psychro-environment.
2. the present invention uses monel silk or pure iron metal silk to make conductor, not only increase the heat-resistant quality of conductor, mechanical strength, also improve the high temperature antioxidant of conductor and reduce low-temperature brittle fracture, and conductor is twisted technique processed by monel silk or pure iron metal silk by Shu Heyu and makes, so that the cable of the present invention has more preferable flexibility, it is applicable to various movable electrical appliances, each layer tinsel uses annealing process difference to make each layer hot strength wiry the most different, sequentially successively decreased 3MPa by central core to outermost layer, preferably balance the contradiction between the pliability of conductor and hot strength, that is, pliability and the hot strength of conductor are taken into account.
3. the thermal insulation layer of the present invention is made up of polyimides paper tape, and polyimides paper tape uses around-packing technology to be closely affixed on conductive surface, and minimum temperature-resistance thermal-insulation grade rises to more than 350 DEG C；
The major ingredient of insulating barrier the most of the present invention is silica gel, owing to silica gel material is capable of withstanding low temperature, may be used for the low temperature environment of-65 DEG C, silica gel silk is used to weave the insulating barrier combined with silica gel extrusion process, its low temperature tolerance ability further enhances, can use in the environment of-76 DEG C, therefore the composite insulation structure of the present invention can ensure electric property, mechanical performance, also the property of the reply external environment condition of cable can be ensured, as high temperature resistant, low temperature resistant, fire-retardant, fire-resistant, oil resistant, tension, soft etc., use composite insulation structure it can be avoided that single insulation system is only capable of meeting single performance requirement；
5. glass braid technique is effectively combined by the sheath of the present invention with silica gel extrusion process, make product while keeping superior electrical insulating properties, be greatly improved mechanical performance (as increased tensile strength, reducing bending radius etc.) and the high-temperature stability of sheath.
Therefore, the present invention disclosure satisfy that the use characteristic under high temperature low temperature moves occasion, also have that Halogen is nontoxic, low temperature resistant, oil resistant, the excellent specific property such as wear-resisting, ensure that reliability and the safety of electrical connection, it is highly suitable for the movable electrical appliances of the high temperature industries such as hot environment such as glass, papermaking, metallurgy, forging, is also applied for the movable electrical appliances that psychro-environment uses.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of cable of the present invention；
Fig. 2 is the another kind of structural representation of cable of the present invention.
The implication of each code name in figure: 1-conductor；2-thermal insulation layer；3-insulating barrier；4-implant, 5-sheath.
Detailed description of the invention
For technical characteristic and the practical effect of the present invention can be described in detail, and can realize according to the content of this specification, below in conjunction with the accompanying drawings embodiments of the present invention be further illustrated.
Embodiment one
With reference to Fig. 1, for the heat-resisting cold-resistant flexible single-core cable of one of the present invention, the insulating barrier 3 including conductor 1 and being coated on conductor 1 periphery and be arranged at the thermal insulation layer 2 between conductor 1 and insulating barrier 3.
When producing this heat-resisting cold-resistant flexible single-core cable, first conductive wire such as multiply monel silk or pure iron metal silk are twisted technique processed by Shu Heyu and make conductor 1, then with polyimides paper tape around the thermal insulation layer 2 being wrapped in this conductor 1 outer surface formation composite construction, again first with F46 plastic tape or wrapped one layer of polyurethane tape on thermal insulation layer 2 outer surface, recycle silicon collodion silk passes through one layer of cylinder net of circular knitting machines, then with the insulating barrier 3 of one layer of prepared composite construction of silica gel extrusion molding.
The conductive wire of conductor 1 is concentric circular layered arrangement, and each layer tinsel uses different annealing process to make each layer hot strength wiry different, central core to outermost layer sequentially successively decrease 3MPa.
The insulating barrier of the present invention uses silica gel silk weaving to combine with silica gel extrusion process and makes, by silica gel silk weaving to strengthen the intensity of cable, then silica gel extrusion process gapless bonding, make the insulation electrical stable performance of the heat-resisting cold-resistant flexible single-core cable of the present invention, being particularly suited for 300 DEG C ~ 450 DEG C hot environments, the single-core cable of this embodiment preferentially uses this technique.
Embodiment two
See Fig. 2, the heat-resisting cold-resistant flexible multi-core cable of one for the present invention, including three cable cores and be coated on the sheath 5 that these three cable cores are peripheral, these three cable cores by stranded in the shape of a spiral, cable core gap has implant 4, this cable core uses the heat-resisting cold-resistant flexible single-core cable of embodiment one, and the insulating barrier 3 of heat-resisting cold-resistant flexible single-core cable can be differently configured from the insulating barrier 3 in embodiment one in the present embodiment, this insulating barrier 3 can be first with F46 plastic tape or wrapped one layer of polyurethane tape, recycle silicon collodion silk one layer of cylinder net of braiding, continue and coat one layer of prepared composite insulation layer with liquid-state silicon gel.
When producing this heat-resisting cold-resistant flexible multi-core cable, first by stranded for three cable cores, extrusion process is used to be filled in cable core gap as implant 4 soft silica gel again, then pass through one layer of cylinder net of circular knitting machines at these three cable cores periphery glass fiber, then prepare the sheath 5 of composite construction with silica gel extrusion molding.
Owing to the glass fiber in sheath 5 is inorganic matter, can not burn, therefore the sheath 5 being made from possesses anti-flammability and the fire resistance of excellence, braiding also can strengthen overall tension and the abrasion strength resistance of sheath after processing, extrusion process can the degree of adhesion of significant increase glass fiber and sheath, braiding space is easily tamped, to promote overall mechanical properties and the service life of cable of the present invention；Implant 4 in cable core gap is soft silica gel, bar selects soft silica gel material to be advantageous in that, the temperature resistant grade of soft silica gel, intensity, pliability, flame-retardant performance are enough and product uses environments match, disclosure satisfy that such as the requirement such as high temperature resistant, low temperature resistant, fire-retardant, fire-resistant, oil resistant, tension, softness, other material is not provided simultaneously with above-mentioned characteristic.
Additionally, it should be noted that, the cable core radical not particular value of the heat-resisting cold-resistant flexible multi-core cable in the second embodiment, depending on its radical should require according to the design of concrete cable, as can also is that two, four or more, such as four root architectures, can be on the basis of embodiment two, a piece cable core of heart increase wherein is as ground wire, and the hot strength of this center cable core conductor is than adjacent high 5MPa.
Being described in detail the cable of the present invention above with reference to embodiment, be illustrative and not restrictive, changing and modifications under without departing from present general inventive concept, all within protection scope of the present invention.
Claims (8)
1. a heat-resisting cold-resistant flexible single-core cable, including conductor and be coated on the insulating barrier that conductor is peripheral, described conductor is twisted technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, it is characterised in that between conductor and insulating barrier, also has a thermal insulation layer, this thermal insulation layer polyimides paper bag covers and forms, and the conductive wire of described conductor is concentric circular layered arrangement, and the hot strength of each layer conductive wire is sequentially successively decreased 3MPa by central core to outermost layer.
Heat-resisting cold-resistant flexible single-core cable the most according to claim 1, it is characterised in that described thermal insulation layer is first wrapped with polyimides paper tape, then indulges the compound heat-insulation layer packed with polyimides paper.
Heat-resisting cold-resistant flexible single-core cable the most according to claim 1, it is characterised in that described silicone insulation layer is first with F46 plastic tape or wrapped one layer of polyurethane tape, recycle silicon collodion silk one layer of cylinder net of braiding, continues with one layer of prepared composite insulation layer of silica gel extrusion molding.
4. a heat-resisting cold-resistant flexible multi-core cable, including many cable cores and be coated on the sheath that these many cable cores are peripheral, many cable cores by stranded in the shape of a spiral, cable core has implant in gap, it is characterized in that, described cable core uses the heat-resisting cold-resistant flexible single-core cable described in claim 1, this heat-resisting cold-resistant flexible single-core cable includes conductor and is coated on the insulating barrier that conductor is peripheral, described conductor is twisted technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, between conductor and insulating barrier, also has a thermal insulation layer, thermal insulation layer polyimides paper tape is wrapped forms for this, the conductive wire of described conductor is concentric circular layered arrangement, the hot strength of each layer conductive wire is sequentially successively decreased 3MPa by central core to outermost layer.
Heat-resisting cold-resistant flexible multi-core cable the most according to claim 4, it is characterised in that described thermal insulation layer is first wrapped with polyimides paper tape, then indulges the compound heat-insulation layer packed with polyimides paper.
Heat-resisting cold-resistant flexible multi-core cable the most according to claim 4, it is characterized in that, described silicone insulation layer is first with F46 plastic tape or wrapped one layer of polyurethane tape, recycle silicon collodion silk one layer of cylinder net of braiding, continues and coats one layer of prepared composite insulation layer with liquid-state silicon gel.
Heat-resisting cold-resistant flexible multi-core cable the most according to claim 4, it is characterised in that described implant is soft silica gel, uses extrusion process to be filled in cable core gap.
Heat-resisting cold-resistant flexible multi-core cable the most according to claim 4, it is characterised in that described sheath is first with one layer of cylinder net of glass braid, the composite jacket that recycle silicon glue extrusion molding prepares.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310510271.7A CN103531277B (en) | 2013-10-25 | 2013-10-25 | Heat-resisting cold-resistant flexible cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310510271.7A CN103531277B (en) | 2013-10-25 | 2013-10-25 | Heat-resisting cold-resistant flexible cable |
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| CN103531277A CN103531277A (en) | 2014-01-22 |
| CN103531277B true CN103531277B (en) | 2016-08-17 |
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| CN105374422A (en) * | 2015-11-23 | 2016-03-02 | 梁锋 | Cable |
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| CN201465636U (en) * | 2009-04-30 | 2010-05-12 | 特变电工山东鲁能泰山电缆有限公司 | Refractory composite insulated copper strand winding wire |
| CN102360602A (en) * | 2011-10-14 | 2012-02-22 | 南京全信传输科技股份有限公司 | GWIB (general way interface bus) high-temperature-resistant cable and preparation process thereof |
| CN202275621U (en) * | 2011-10-11 | 2012-06-13 | 芜湖航天特种电缆厂 | High temperature resistant lead used for steel-making sensor |
| CN102831971A (en) * | 2012-08-30 | 2012-12-19 | 江苏永鼎电气有限公司 | Ultra-high temperature resistant low-noise cable |
| CN203102890U (en) * | 2013-01-05 | 2013-07-31 | 南京全信传输科技股份有限公司 | Aerospace irradiation-resistant cable |
| CN203232726U (en) * | 2013-04-08 | 2013-10-09 | 远东电缆有限公司 | A cable resistant to high temperature |
| CN203520921U (en) * | 2013-10-25 | 2014-04-02 | 特变电工(德阳)电缆股份有限公司 | Heat-and-cold resistant flexible single-core cable and heat-and-cold resistant flexible multi-core cable |
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2013
- 2013-10-25 CN CN201310510271.7A patent/CN103531277B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465636U (en) * | 2009-04-30 | 2010-05-12 | 特变电工山东鲁能泰山电缆有限公司 | Refractory composite insulated copper strand winding wire |
| CN202275621U (en) * | 2011-10-11 | 2012-06-13 | 芜湖航天特种电缆厂 | High temperature resistant lead used for steel-making sensor |
| CN102360602A (en) * | 2011-10-14 | 2012-02-22 | 南京全信传输科技股份有限公司 | GWIB (general way interface bus) high-temperature-resistant cable and preparation process thereof |
| CN102831971A (en) * | 2012-08-30 | 2012-12-19 | 江苏永鼎电气有限公司 | Ultra-high temperature resistant low-noise cable |
| CN203102890U (en) * | 2013-01-05 | 2013-07-31 | 南京全信传输科技股份有限公司 | Aerospace irradiation-resistant cable |
| CN203232726U (en) * | 2013-04-08 | 2013-10-09 | 远东电缆有限公司 | A cable resistant to high temperature |
| CN203520921U (en) * | 2013-10-25 | 2014-04-02 | 特变电工(德阳)电缆股份有限公司 | Heat-and-cold resistant flexible single-core cable and heat-and-cold resistant flexible multi-core cable |
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| CN103531277A (en) | 2014-01-22 |
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