CN103607797A - Heating cable - Google Patents
Heating cable Download PDFInfo
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- CN103607797A CN103607797A CN201310511603.3A CN201310511603A CN103607797A CN 103607797 A CN103607797 A CN 103607797A CN 201310511603 A CN201310511603 A CN 201310511603A CN 103607797 A CN103607797 A CN 103607797A
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Abstract
The invention discloses a heating cable comprising a heating body which is sequentially coated with a PTC filling layer, an insulating layer, a shielding layer and a protective layer. The PTC filling layer is composed of, by weight, 55-70 parts of thermoplastic ethylene propylene rubber, 25-40 parts of polypropylene, 13-20 parts of naphthenic oil, 0.7-2 parts of BIPB, 1.2-2 parts of stearic acid and 5-15 parts of carbon black. The heating body of the heating cable is heated quickly and is high in thermal efficiency; and the outer protective layer has good elasticity, has good temperature resistance and can adapt to a wide range from minus 60 to 200 DEG C, is anti-aging and improves the service life of the heating cable.
Description
Technical field
The present invention relates to a kind of heating cable.
Technical background
The operation principle of heating cable is in the middle of two parallel wires, to fill PTC conductive polymer plastics to make core band, wherein high molecule plastic is basis material, play skeleton and filling carrier, inorganic conductor filler is that electrical current carriers forms the conductive network being communicated with in insulator, plays current channel effect.After power connection, electric current takes on another root wire by core through a wire wherein, forms loop, and heating after the energising of core band, to compensate the heat loss due to radiation of pipeline.Conductive plastics is when long liter in temperature, and expanded by heating, progressively disconnects part current channel network, and the electric current passing through reduces, and caloric value also reduces thereupon.When temperature rises to certain scope, in conductive plastics, current channel recloses, and electric-heating belt starts again to supply with heat.It is basis material that PTC composite material mainly be take the one pack system crystallizations such as polyethylene (PE), the ethene cruel copolymer of one vinyl acetate (EVA), Kynoar (PVDF) or semi-crystalline polymer, and the conductive black that the cost performance of take is high (CB) is conductive filler.Because the fusing point of polyethylene (PE), the ethene cruel copolymer of one vinyl acetate (EVA), this class crystalline polymer of Kynoar (PVDF) is generally all below 150 ℃, cause the PTC transition temperature lower (<150 ℃) of the PTC composite material obtaining, can not meet the application demand of high temperature occasion.
Raising day by day along with environmental consciousness, the performance of heating cable and use are had higher requirement, particularly in energy-conservation, safety, environmental issue, in heating cable in the past, adopt girl's aluminium alloy to make conductor, polyvinyl chloride and make the heating cable that insulating barrier and PVC jacket layer form.But in actual use, service time one is long, and the heating cable that girl's aluminium alloy is made conductor heats up slowly, needs the time longer, and power consumption increases, and safeguard protection and anti-aging degree are not high.
Summary of the invention
The present invention is directed to problems of the prior art, a kind of anti-aging and safe heating cable are provided.In order to achieve the above object, the present invention realizes by following technical proposal:
A heating cable, comprises heater, and described heater wraps and is provided with PTC packed layer, insulating barrier, screen and protective layer successively outward, and described PTC packed layer consists of by weight following component: thermoplasticity ethylene-propylene rubber: 55-70 part; Polypropylene: 25-40 part; Naphthenic oil: 13-20 part; BIPB:0.7-2 part; Stearic acid: 1.2-2 part; Carbon black: 5-15 part.
Described insulating barrier and protective layer are all to consist of crosslinked polyethylene, polyvinyl chloride or F46 extrusion molding.
Described screen consists of tinned copper wire and vertical alclad skin.
Heating wire of the present invention is to consist of chromium, nickel alloy, has that heating is fast, heat stablize feature, make heating cable heating soon, the required time of heating up is short, the heat efficiency is high, has reached energy-saving and cost-reducing object.
F46 is that the copolymer of tetrafluoroethene and hexafluoropropylene is called for short, and improves temperature tolerance and the whole service life of heating cable, can guarantee itself and same life-span of building.
The processing method of heating cable of the present invention is, first thermoplasticity ethylene-propylene rubber, polypropylene, naphthenic oil, BIPB, stearic acid, carbon black are put to mixed at high speed together, at 80-120 ℃ of temperature, make TPV elastic particle after by single screw extrusion machine melt blending, dynamic vulcanization standby.TPV elastic particle and heater are together added to single-screw machine extruder is extruded, cooling, radiation moulding, outside it, bread is established insulating barrier, screen and protective layer and is obtained heating cable again.
Compared with prior art, the invention has the beneficial effects as follows:
PTC packed layer formula of the present invention is reasonable, and heater heating is fast, the heat efficiency is high; Outer jacket good springiness, the good wide accommodation of temperature tolerance are-60-200 degree, anti-aging, the useful life of having improved heating cable.
Embodiment
Provide embodiment below so that the present invention is specifically described; be necessary to be pointed out that at this following examples are only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field some nonessential improvement that content is made the present invention according to the present invention and adjustment still belong to protection scope of the present invention.
Embodiment 1
Take respectively by weight ratio dry thermoplasticity ethylene-propylene rubber: 55 parts; Polypropylene: 30 parts; Naphthenic oil: 13 parts; BIPB:1.2 part; Stearic acid: 1.2-part; Carbon black: 15 parts are mixed, joins the material mixing in double screw extruder, through melt extruding, then, after water-cooled, by pelleter, is cut into the insulating material particle that length is 1-5mm.Then by above-mentioned insulating material particle with by nickel, chromium by weight mixing together with the exothermic material forming for 3:1, extrude, radiation, outside it, bread is established insulating barrier, screen and protective layer and is obtained heating cable.Described insulating barrier and protective layer are all to be made by crosslinked polyethylene; Described screen consists of tinned copper wire and vertical alclad skin.
Embodiment 2
Take by weight ratio thermoplasticity ethylene-propylene rubber: 60 parts; Polypropylene: 25 parts; Naphthenic oil: 18 parts; BIPB:0.7 part; Stearic acid: 1.5 parts; Carbon black: 8 parts are mixed, joins the material mixing in double screw extruder, through melt extruding, then, after water-cooled, by pelleter, is cut into the insulating material particle that length is 1-5mm.Then by above-mentioned insulating material particle with by nickel, chromium by weight mixing together with the exothermic material forming for 4:1, extrude, radiation, outside it, bread is established insulating barrier, screen and protective layer and is obtained heating cable.Described insulating barrier and protective layer are all to be made by polyvinyl chloride; Described screen consists of tinned copper wire and vertical alclad skin.
Embodiment 3
Take by weight ratio thermoplasticity ethylene-propylene rubber: 58 parts; Polypropylene: 28 parts; Naphthenic oil: 15 parts; BIPB:1 part; Stearic acid: 1.3 parts; Carbon black: 10 parts are mixed, joins the material mixing in double screw extruder, through melt extruding, then, after water-cooled, by pelleter, is cut into the insulating material particle that length is 1-5mm.Then by above-mentioned insulating material particle with by nickel, chromium by weight mixing together with the exothermic material forming for 5:1, extrude, radiation, outside it, bread is established insulating barrier, screen and protective layer and is obtained heating cable.Described insulating barrier and protective layer are all to consist of F46 extrusion molding; Described screen consists of tinned copper wire and vertical alclad skin.
Embodiment 4
Take by weight ratio thermoplasticity ethylene-propylene rubber: 70 parts; Polypropylene: 40 parts; Naphthenic oil: 20 parts; BIPB:2 part; Stearic acid: 2 parts; Carbon black: 5 parts are mixed, joins the material mixing in double screw extruder, through melt extruding, then, after water-cooled, by pelleter, is cut into the insulating material particle that length is 1-5mm.Then by above-mentioned insulating material particle with by nickel, chromium by weight mixing together with the exothermic material forming for 6:1, extrude, radiation, outside it, bread is established insulating barrier, screen and protective layer and is obtained heating cable.Described insulating barrier and protective layer are all to consist of F46 extrusion molding; Described screen consists of tinned copper wire and vertical alclad skin.
Claims (2)
1. a heating cable, comprises heater, and described heater wraps and is provided with PTC packed layer, insulating barrier, screen and protective layer successively outward, it is characterized in that: described PTC packed layer consists of by weight following component: thermoplasticity ethylene-propylene rubber: 55-70 part; Polypropylene: 25-40 part; Naphthenic oil: 13-20 part; BIPB:0.7-2 part; Stearic acid: 1.2-2 part; Carbon black: 5-15 part.
2. a kind of heating cable according to claim 1, is characterized in that: described insulating barrier and protective layer are all to consist of crosslinked polyethylene, polyvinyl chloride or F46 extrusion molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511603.3A CN103607797A (en) | 2013-10-25 | 2013-10-25 | Heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511603.3A CN103607797A (en) | 2013-10-25 | 2013-10-25 | Heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103607797A true CN103607797A (en) | 2014-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310511603.3A Pending CN103607797A (en) | 2013-10-25 | 2013-10-25 | Heating cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN103607797A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658062A (en) * | 2017-10-09 | 2018-02-02 | 青海欧耐特线缆有限公司 | A kind of antiultraviolet cable and its cabling device |
| CN108260238A (en) * | 2018-03-12 | 2018-07-06 | 四川大仁新创科技有限公司 | A kind of instant heating type fast heating line that is powered |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001015253A (en) * | 1999-06-29 | 2001-01-19 | Hosiden Corp | Heat sheet, heating roller, feeding unit for heating roller, and toner fixing device |
| CN202307268U (en) * | 2011-07-19 | 2012-07-04 | 常州神辉电工材料有限公司 | Outdoor snow melting self-regulating heating cable |
| CN103813490A (en) * | 2012-11-13 | 2014-05-21 | 安邦电气集团有限公司 | TPV material heating cable |
-
2013
- 2013-10-25 CN CN201310511603.3A patent/CN103607797A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001015253A (en) * | 1999-06-29 | 2001-01-19 | Hosiden Corp | Heat sheet, heating roller, feeding unit for heating roller, and toner fixing device |
| CN202307268U (en) * | 2011-07-19 | 2012-07-04 | 常州神辉电工材料有限公司 | Outdoor snow melting self-regulating heating cable |
| CN103813490A (en) * | 2012-11-13 | 2014-05-21 | 安邦电气集团有限公司 | TPV material heating cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658062A (en) * | 2017-10-09 | 2018-02-02 | 青海欧耐特线缆有限公司 | A kind of antiultraviolet cable and its cabling device |
| CN108260238A (en) * | 2018-03-12 | 2018-07-06 | 四川大仁新创科技有限公司 | A kind of instant heating type fast heating line that is powered |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140226 |