CN103531277A - Heat and cold resistant flexible cable - Google Patents
Heat and cold resistant flexible cable Download PDFInfo
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- CN103531277A CN103531277A CN201310510271.7A CN201310510271A CN103531277A CN 103531277 A CN103531277 A CN 103531277A CN 201310510271 A CN201310510271 A CN 201310510271A CN 103531277 A CN103531277 A CN 103531277A
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Abstract
The invention discloses a heat and cold resistant flexible cable. The flexible cable in a single core structure comprises a conductor and an insulation layer, wherein the periphery of the conductor is coated with the insulation layer; the conductor is fabricated by a plurality of conductive metal wires via a bundling and stranding technology; the insulation layer is a silica gel insulation layer; and a thermal insulating layer is arranged between the conductor and the insulation layer and coated by polyimide paper. The cable in a multi-core structure comprises a plurality of cable cores and a sheath, wherein the peripheries of the cable cores are coated with the sheath; the cable cores are stranded to be spiral; filling is arranged in gaps among the cable cores; and each cable core is the heat and cold resistant flexible single-core cable. The cable has good flexibility, can resist high temperature and low temperature, and meets requirements of movable electric appliances in various temperature environments.
Description
Technical field
The present invention relates to cable, relate in particular to a kind of heat-resisting cold-resistant flexible cable, it can be widely used in the movable electrical appliances of the high temperature industries such as glass, papermaking, metallurgy, is also applicable to the movable electrical appliances that psychro-environment is used.
Background technology
High-temperature smelting pot is the industry visual plants such as metallurgical industry and glass, the working temperature of high-temperature smelting pot is at 1000 ℃ even 1600 ℃, its radiation temperature around can reach 300 ℃ of left and right, to smelting furnace electric equipment around, it is a huge test, especially be responsible for the electric wire that electrical equipment connects, because these cables can not be all in closed state, cable is the harm of thermal radiation at any time, cause ageing of plastics and thawing, thereby make cable lose at short notice original electrical property and mechanical performance, cause power outage etc., in addition, for smelting furnace Electrically operated gate, open moment, when mobile loading work car loads transport task continuously, load wagon with and electrical appliance connecting wire all in high-heating radiation environment, the highest prompt radiation temperature can reach more than 400 ℃, the electrical equipment of load wagon connects dependence special cable, this cable moves along with the movement of load wagon, under hot environment at any time in flexion torsion state, therefore to the pliability of cable, require high, if the pliability of cable does not reach requirement, breaking may appear in the cable covering that plastics or rubber form, thereby cause the electric fault of mobile load wagon.According to the actual investigation to certain large-scale heavy industry forge high-temperature smelting pot operational environment, smelting furnace temperature is around between 260 ~ 305 ℃, mobile load wagon is opened moment in smelting furnace Electrically operated gate, thermal radiation temperature is between 380 ℃ ~ 450 ℃, the thermal radiation state of electrical equipment tie cable in 420 ℃ of left and right and also will twisting along with the movement of load wagon, cable in the market, general work environment is 200 ℃ of left and right, not only temperature resistant grade is low, and flexibility is not good yet, cannot meet the requirement of above-mentioned environment for use.
On the other hand, the movable electrical appliances using at psychro-environment, for example, on plateau or the crane of high mountain regional architecture building site winter construction, its cable usually can have an accident because low temperature causes insulation bursting by freezing, wire brittle failure.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of environment for use temperature range wide, can be high temperature resistant, and flexible cable that again can be low temperature resistant, meets the requirement of various temperature environment movable electrical appliances.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of heat-resisting cold-resistant flexible single-core cable, comprise conductor and be coated on the insulating barrier of conductor periphery, described conductor twists technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, between conductor and insulating barrier, also have a thermal insulation layer, this thermal insulation layer covers and forms with polyimides paper bag.
Described thermal insulation layer is first to use polyimides paper tape wrapped, then with polyimides paper vertical pack compound heat-insulation layer.
Described conductive wire is monel silk or pure nickel wire, and this wire is concentric circles layered arrangement result, and each layer of annealing process difference wiry makes each layer of hot strength wiry also different, by central core to the outermost layer 3MPa that successively decreases in turn.
Described silicone insulation layer is first to use F46 plastic tape or the wrapped one deck of polyurethane tape, recycle silicon collodion silk braiding one deck cylinder net, the composite insulation layer that continues and make with silica gel extrusion molding one deck.
A kind of heat-resisting cold-resistant flexible multi-core cable, comprise many cable cores and be coated on the sheath of these many cable core peripheries, many cable cores are by the shape of a spiral stranded, cable core has filler in gap, described cable core adopts heat-resisting cold-resistant flexible single-core cable claimed in claim 1, this heat-resistant flexible single-core cable comprises conductor and is coated on the insulating barrier of conductor periphery, described conductor twists 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, this thermal insulation layer forms with polyimides paper tape is wrapped.
Described thermal insulation layer is first to use polyimides paper tape wrapped, then with polyimides paper vertical pack compound heat-insulation layer.
Described conductive wire is monel silk or pure nickel wire, and this wire is concentric circles layered arrangement result, and each layer of annealing process difference wiry makes each layer of hot strength wiry also different, by central core to the outermost layer 3MPa that successively decreases in turn.
Described silicone insulation layer is first to use F46 plastic tape or the wrapped one deck of polyurethane tape, and recycle silicon collodion silk braiding one deck cylinder net, continues and apply with liquid-state silicon gel the composite insulation layer that one deck makes.
Described filler is soft silica gel, adopts extrusion process to be filled in cable core gap.
Described sheath is first to use glass braid one deck cylinder net, the composite jacket that recycle silicon glue extrusion molding makes.
The invention has the beneficial effects as follows:
1. thermal insulation layer of the present invention is made by polyimides paper, and polyimides paper tape adopts 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 ℃.Moreover, it also has good resistance to low temperature, can resistance to-65 ℃ following low temperature, that is to say, this cable has good environmental adaptability, can be used for hot environment, also can be used for psychro-environment.
2. the present invention adopts monel silk or pure nickel wire to make conductor, not only improved the heat-resistant quality of conductor, mechanical strength, also promoted the high temperature antioxidant of conductor and reduced low-temperature brittle fracture, and conductor twists technique processed by monel silk or pure nickel wire by Shu Heyu and makes, thereby make cable of the present invention there is better flexibility, be applicable to various movable electrical appliances, each layer of wire adopts annealing process difference to make each layer of hot strength wiry also different, by central core to the outermost layer 3MPa that successively decreases in turn, preferably balance the pliability of conductor and the contradiction between hot strength, that is to say, pliability and the hot strength of conductor have been taken into account.
3. thermal insulation layer of the present invention is made by polyimides paper tape, and polyimides paper tape adopts around-packing technology to be closely affixed on conductive surface, and minimum temperature-resistance thermal-insulation grade rises to more than 350 ℃;
4. the major ingredient of insulating barrier of the present invention is silica gel, because silica gel material can be low temperature resistant, can be for the low temperature environment of-65 ℃, the insulating barrier that adopts the braiding of silica gel silk to combine with silica gel extrusion process, its low temperature tolerance ability further strengthens, can under the environment of-76 ℃, use, therefore composite insulation structure of the present invention can guarantee electric property, mechanical performance, also can guarantee the property of the reply external environment condition of cable, as high temperature resistant, low temperature resistant, fire-retardant, fire-resistant, oil resistant, tension, soft etc., adopt composite insulation structure can avoid single insulation system only can meet single performance requirement,
5. sheath of the present invention is by glass braid technique and the effective combination of silica gel extrusion process, make product when keeping superior electrical insulation property, promoted greatly mechanical performance (as increased tensile strength, reducing bending radius etc.) and the high-temperature stability of sheath.
Therefore, the present invention can meet at high temperature low temperature and moves the operating characteristic under occasion, also have that Halogen is nontoxic, low temperature resistant, oil resistant, the excellent specific property such as wear-resisting, can guarantee reliability and the fail safe of electrical connection, be suitable for very much hot environment as the movable electrical appliances of the high temperature industries such as glass, papermaking, metallurgy, forging, be also applicable to the movable electrical appliances that psychro-environment is used.
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-filler, 5-sheath.
Embodiment
For describing technical characterictic of the present invention and practical effect in detail, and can realize according to the content of this specification, below in conjunction with accompanying drawing, embodiments of the present invention are further illustrated.
Embodiment mono-
With reference to Fig. 1, be a kind of heat-resisting cold-resistant flexible single-core cable of the present invention, comprise conductor 1 and be coated on the insulating barrier 3 of conductor 1 periphery and be arranged at conductor 1 and insulating barrier 3 between thermal insulation layer 2.
While producing this heat-resisting cold-resistant flexible single-core cable, first by conductive wire, for example multiply monel silk or pure nickel wire twist technique processed by Shu Heyu and make conductor 1, then with the wrapped thermal insulation layer 2 that forms composite construction in this conductor 1 outer surface of polyimides paper tape, on thermal insulation layer 2 outer surfaces, first use again F46 plastic tape or the wrapped one deck of polyurethane tape, recycle silicon collodion silk weaves one deck cylinder net by circular weaving machine, then with silica gel extrusion molding one deck, makes the insulating barrier 3 of composite construction.
The conductive wire of conductor 1 is concentric circles layered arrangement, and each layer of wire adopts different annealing processs to make each layer of hot strength wiry different, by central core to the outermost layer 3MPa that successively decreases in turn.
Insulating barrier of the present invention adopts silica gel silk weaving to combine and make with silica gel extrusion process, intensity by silica gel silk weaving with enhancing cable, then silica gel extrusion process gapless is bonding, make the insulation electrical stable performance of heat-resisting cold-resistant flexible single-core cable of the present invention, be particularly useful for 300 ℃ ~ 450 ℃ hot environments, the single-core cable of this execution mode preferentially adopts this technique.
Embodiment bis-
Referring to Fig. 2, for a kind of heat-resisting cold-resistant flexible multi-core cable of the present invention, comprise three cable cores and be coated on the sheath 5 of these three cable core peripheries, these three cable cores are by the shape of a spiral stranded, in cable core gap, there is filler 4, this cable core adopts the heat-resisting cold-resistant flexible single-core cable of embodiment mono-, and can be different from the insulating barrier 3 in embodiment mono-for the insulating barrier 3 of the heat-resisting cold-resistant flexible single-core cable of the present embodiment, this insulating barrier 3 can be first to use F46 plastic tape or the wrapped one deck of polyurethane tape, recycle silicon collodion silk braiding one deck cylinder net, continue and apply with liquid-state silicon gel the composite insulation layer that one deck makes.
While producing this heat-resisting cold-resistant flexible multi-core cable, first three cable cores are stranded, as filler 4, adopt extrusion process to be filled in cable core gap soft silica gel again, then in these three cable core peripheries, with glass fiber, by circular weaving machine, weave one deck cylinder net, then with silica gel extrusion molding, make the sheath 5 of composite construction.
Because the glass fiber in sheath 5 is inorganic matter, can not burn, therefore the sheath 5 of being made by it possesses excellent anti-flammability and fire resistance, braiding also can strengthen whole tension and the abrasion strength resistance of sheath after processing, extrusion process can greatly promote the degree of adhesion of glass fiber and sheath, braiding space is easily tamped, to promote overall mechanical properties and the useful life of cable of the present invention; Filler 4 in cable core gap is soft silica gels, bar selects the benefit of soft silica gel material to be, the temperature resistant grade of soft silica gel, intensity, pliability, flame-retardant performance are enough mated with product environment for use, can meet as requirements such as high temperature resistant, low temperature resistant, fire-retardant, fire-resistant, oil resistant, tension, softnesses, other material possesses above-mentioned characteristic when different.
In addition, it should be noted that, the cable core radical of the heat-resisting cold-resistant flexible multi-core cable in the second execution mode is not particular value, its radical should be determined according to the designing requirement of concrete cable, as can also be two, four or more, four root architectures for example, can be on the basis of embodiment bis-, therein the heart increase a cable core as the hot strength of ground wire ，Gai center cable core conductor than adjacent high 5MPa.
Above with reference to embodiment, cable of the present invention being have been described in detail, is illustrative and not restrictive, in the variation and the modification that do not depart under general plotting of the present invention, all within protection scope of the present invention.
Claims (10)
1. a heat-resisting cold-resistant flexible single-core cable, comprise conductor and be coated on the insulating barrier of conductor periphery, described conductor twists technique processed by multiply conductive wire by Shu Heyu and makes, described insulating barrier is silicone insulation layer, it is characterized in that, between conductor and insulating barrier, also have a thermal insulation layer, this thermal insulation layer covers and forms with polyimides paper bag.
2. heat-resisting cold-resistant flexible cable according to claim 1, is characterized in that, described thermal insulation layer is first to use polyimides paper tape wrapped, then with polyimides paper vertical pack compound heat-insulation layer.
3. heat-resisting cold-resistant flexible cable according to claim 1, it is characterized in that, described conductive wire is monel silk or pure nickel wire, this wire is concentric circles layered arrangement result, each layer of annealing process difference wiry makes each layer of hot strength wiry also different, by central core to the outermost layer 3MPa that successively decreases in turn.
4. heat-resisting cold-resistant flexible cable according to claim 1, is characterized in that, described silicone insulation layer is first to use F46 plastic tape or the wrapped one deck of polyurethane tape, recycle silicon collodion silk braiding one deck cylinder net, the composite insulation layer that continues and make with silica gel extrusion molding one deck.
5. a heat-resisting cold-resistant flexible multi-core cable, comprise many cable cores and be coated on the sheath of these many cable core peripheries, many cable cores are by the shape of a spiral stranded, cable core has filler in gap, it is characterized in that, described cable core adopts heat-resisting cold-resistant flexible single-core cable claimed in claim 1, this heat-resistant flexible single-core cable comprises conductor and is coated on the insulating barrier of conductor periphery, described conductor twists 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, this thermal insulation layer forms with polyimides paper tape is wrapped.
6. heat-resisting cold-resistant flexible multi-core cable according to claim 5, is characterized in that, described thermal insulation layer is first to use polyimides paper tape wrapped, then with polyimides paper vertical pack compound heat-insulation layer.
7. heat-resisting cold-resistant flexible multi-core cable according to claim 5, it is characterized in that, described conductive wire is monel silk or pure nickel wire, this wire is concentric circles layered arrangement result, each layer of annealing process difference wiry makes each layer of hot strength wiry also different, by central core to the outermost layer 3MPa that successively decreases in turn.
8. heat-resisting cold-resistant flexible multi-core cable according to claim 5, it is characterized in that, described silicone insulation layer is first to use F46 plastic tape or the wrapped one deck of polyurethane tape, and recycle silicon collodion silk braiding one deck cylinder net, continues and apply with liquid-state silicon gel the composite insulation layer that one deck makes.
9. heat-resisting cold-resistant flexible multi-core cable according to claim 5, is characterized in that, described filler is soft silica gel, adopts extrusion process to be filled in cable core gap.
10. heat-resisting cold-resistant flexible multi-core cable according to claim 5, is characterized in that, described sheath is first to use glass braid one deck cylinder net, the composite jacket that recycle silicon glue extrusion molding makes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN201310510271.7A CN103531277B (en) | 2013-10-25 | 2013-10-25 | Heat-resisting cold-resistant flexible cable |
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| CN103531277A true CN103531277A (en) | 2014-01-22 |
| CN103531277B CN103531277B (en) | 2016-08-17 |
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| CN201310510271.7A Active CN103531277B (en) | 2013-10-25 | 2013-10-25 | Heat-resisting cold-resistant flexible cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374422A (en) * | 2015-11-23 | 2016-03-02 | 梁锋 | Cable |
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| 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 |
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| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105374422A (en) * | 2015-11-23 | 2016-03-02 | 梁锋 | Cable |
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| CN103531277B (en) | 2016-08-17 |
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