CN101847467A - Manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains - Google Patents
Manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains Download PDFInfo
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- CN101847467A CN101847467A CN 201010157580 CN201010157580A CN101847467A CN 101847467 A CN101847467 A CN 101847467A CN 201010157580 CN201010157580 CN 201010157580 CN 201010157580 A CN201010157580 A CN 201010157580A CN 101847467 A CN101847467 A CN 101847467A
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Abstract
The invention discloses a manufacture method of an ultrathin compound thin-wall insulated cable for high-speed trains, which comprises the process steps of: manufacturing a conductor: twisting a plurality of thin tinned hopper wires layer by layer in the same direction for a plurality of times to prepare the conductor; extruding an insulating layer outside the conductor, wherein the insulating layer includes an inner insulating layer and an outer insulating layer and is processed and formed once by a double-layer co-extruding processing system by using an irradiation crosslinked polyolefin material which has good compatibility in both layers, is suitable for ultrathin extrusion, but has difference on respective formula and function emphasis and has complementarily on performance. The cable produced with the manufacture method has the performances of oscillation resistance, impact resistance, high temperature resistance, low temperature resistance, mineral oil resistance, fuel oil resistance, acid-base resistance and high fire resistance.
Description
Technical field
The present invention relates to a kind of manufacture method of cable, specifically, relate to a kind of manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains, this cable is used to be laid in the inner narrow space of high-speed track train.
Background technology
The basis and the foothold of the national economic development at present are the traffic and the energy, and the core that wherein particularly national in length and breadth track traffic and high-speed railway are economic development, the dilatation of high-speed rail transportation and speed-raising are to be devoted to develop the overall background of bullet train with cable.And the cable that the new band bullet train of China uses dependence on import also, safeguard and especially inconvenience of maintenance, and the bullet train vehicle has higher requirement to vibration resistance, impact resistance, fuel oil resistance, circumstance of temperature difference and the fire resistance of cable, and common cable is difficult to reach this requirement.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains is provided.The cable that this manufacture method is produced has the performance of vibration resistance, shock resistance, high temperature resistant, low temperature resistant, anti-mineral oil, fuel oil resistance, high flame retardant.
The technical scheme that realizes above-mentioned purpose is: a kind of manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains, and processing step is as follows:
The manufacturing of a, conductor: with many thin tinned copper wire layerings, repeatedly, equidirectional bundle strand makes conductor;
B, outside conductor the extruded insulation layer: insulating barrier comprises inner insulating layer and external insulation layer, insulating barrier adopt two-layer compatibility good, be suitable for ultra-thin extrude but separately prescription, the functioning side emphasis is had any different and performance has complementary cross-linking radiation polyolefine material by the moulding of double-layer coextrusion system of processing time processing.
The thickness of the primary insulation among the step b is less than or equal to 0.2mm, and the thickness of outer layer insulation is less than or equal to 0.30mm.
Further, inner insulating layer adds 45% nanoscale Halogen smoke-inhibiting flame retardant agent by 45% crosslinkable polyolefin base-material, the anti-old and processing aids composition of other of 10%.
Further, external insulation layer adds 40% ultra-fine Halogen smoke-inhibiting flame retardant agent by 40% crosslinkable polyolefin base-material, 10% anti-mineral oil, flame retardant and coupling agent, the anti-old and processing aids composition of other of 10%.
After adopting technique scheme, close stranded manufacturing process and conductor profile rounding, smooth surface, the external diameter made are little by the many repeatedly equidirectional bundles of tinned copper wire layering, thoroughly solved rough because of conductive surface, rounding does not cause point discharge phenomenon; Satisfy narrow and small car body wiring space simultaneously, adopt equidirectional strandedly, make cable conductor soft more, it is littler to make it lay bending radius; This conductor is made of many zinc-plated anaerobic copper cash in addition, makes the resistance of conductor low, ampacity is big.
The manufacture method of primary insulation and outer layer insulation be adopt two kinds process industrial art performance be very approaching, the stretching constriction coefficient is consistent, be suitable for ultra-thin extrude but separately prescription, the functioning side emphasis is had any different and performance has complementary cross-linking radiation polyolefine material to utilize special double-layer coextrusion system of processing time processing moulding.Primary insulation possesses good electrical insulation properties and high-low temperature resistant, high flame resistance, outer layer insulation has excellent oil resistant and physical and mechanical properties and high-low temperature resistant, high flame resistance, solved the difficult problem that insulation property can not be taken into account, make cable have the excellent comprehensive performance index, this insulating barrier adopts the manufacturing of special double-layer coextrusion system of processing simultaneously, guarantees one, homogeneous and the high quality requirement of insulation system.
The physical dimension that the cable series of products that this manufacture method is produced have cable is little, in light weight, the characteristics little, that efficiency of transmission is high take up room, be particularly suitable for the development of high-speed railway and the demand of high-power locomotive, and when accidents such as fire, can reduce harm to greatest extent the people.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains, processing step is as follows:
The manufacturing of a, conductor: with many thin tinned copper wire layerings, repeatedly, equidirectional bundle strand makes conductor 1;
B, outside conductor the extruded insulation layer: insulating barrier comprises inner insulating layer 2 and external insulation layer 3, insulating barrier adopt two-layer compatibility good, be suitable for ultra-thin extrude but separately prescription, the functioning side emphasis is had any different and performance has complementary cross-linking radiation polyolefine material by the moulding of double-layer coextrusion system of processing time processing.
The thickness of the primary insulation 2 among the step b is less than or equal to 0.2mm, and the thickness of outer layer insulation 3 is less than or equal to 0.30mm.
Double-layer coextrusion mainly adopts three kinds of methods:
1. double-layer coextrusion head and mold design
Adopt the fine-tuning test-run a machine head of self-centering, utilize Computer Design head separate system, only process with Digit Control Machine Tool, guarantee the ectonexine shunting evenly, guarantee extruding cable circumference top discharge consistency, cooperate high-precision mold again, it is even to guarantee to extrude bilayer thickness, makes on the cable circumference thickness error reach minimum.
2. two-shipper Synchronization Control
Two extrusion main units that computerized control make main frame carry out synchronization lifting by preset proportion, cooperate the unit fine adjustment function again, make sliver in process of production, and it is stable that the ectonexine thickness proportion keeps.
3. high accuracy line footpath control system
Utilize laser diameter measuring instrument to feed back automatic control cable external diameter system, guarantee that the product external diameter is precisely controlled.
The operating temperature range of the cable series of products that manufacture method of the present invention is produced is divided into :-45 ℃～105 ℃, and-45 ℃～125 ℃ ,-45 ℃～150 ℃ three ranks; The specified voltage to earth of cable is divided into two grades of 300V, 750V; The cable breakage percentage elongation is more than 150%, and performance meets the requirement of speed per hour introduced project motor-car cable more than 300 kilometers.
The cable that the present invention produces has anti-ozone, atmospheric pressure, ultraviolet ray, moisture resistance moisture performance, and organic solvents such as oil resistant have the fire-retardant low-smoke non-halogen flame-retardant characteristic that waits, and size is little, and distribution density height can use in narrow space.The conductor performance is better than JISC3152, and the comprehensive physical and mechanical properties of cable is better than EN50264 and EN50306.The cable that the present invention produces can be used for any CHINESE REGION railway network, and special high low temperature, anti-atmospheric pressure performance make it be applicable to Qinghai-Tibet Railway.
Claims (4)
1. the manufacture method of a ultrathin compound thin-wall insulated cable for high-speed trains is characterized in that processing step is as follows:
The manufacturing of a, conductor: with many thin tinned copper wire layerings, repeatedly, equidirectional bundle strand makes conductor (1);
B, outside conductor the extruded insulation layer: insulating barrier comprises inner insulating layer (2) and external insulation layer (3), insulating barrier adopt two-layer compatibility good, be suitable for ultra-thin extrude but separately prescription, the functioning side emphasis is had any different and performance has complementary cross-linking radiation polyolefine material by the moulding of double-layer coextrusion system of processing time processing.
2. the manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains according to claim 1, it is characterized in that: the thickness of the primary insulation among the step b (2) is less than or equal to 0.2mm, and the thickness of outer layer insulation (3) is less than or equal to 0.30mm.
3. the manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains according to claim 1 and 2, it is characterized in that: inner insulating layer (2) adds 45% nanoscale Halogen smoke-inhibiting flame retardant agent by 45% crosslinkable polyolefin base-material, the anti-old and processing aids composition of other of 10%.
4. the manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains according to claim 1 and 2, it is characterized in that: external insulation layer (3) adds 40% ultra-fine Halogen smoke-inhibiting flame retardant agent by 40% crosslinkable polyolefin base-material, 10% anti-mineral oil, flame retardant and coupling agent, the anti-old and processing aids composition of other of 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010157580 CN101847467A (en) | 2010-04-28 | 2010-04-28 | Manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010157580 CN101847467A (en) | 2010-04-28 | 2010-04-28 | Manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains |
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| CN101847467A true CN101847467A (en) | 2010-09-29 |
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| CN 201010157580 Pending CN101847467A (en) | 2010-04-28 | 2010-04-28 | Manufacture method of ultrathin compound thin-wall insulated cable for high-speed trains |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664065A (en) * | 2012-05-04 | 2012-09-12 | 无锡市恒汇电缆有限公司 | Moisture-proof wire and manufacturing method thereof |
| CN103077783A (en) * | 2013-01-28 | 2013-05-01 | 常州市新东方电缆有限公司 | Production process of cable for high-speed train |
| CN103093873A (en) * | 2012-12-28 | 2013-05-08 | 深圳市沃尔核材股份有限公司 | Halogen-free high-flame-retardant cable |
| CN103928101A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Anti-static and inflaming-retarding flexible cable for computers |
| CN104700960A (en) * | 2015-02-02 | 2015-06-10 | 河北瑞光线缆有限公司 | Production process of cable for high-speed train |
| CN105336453A (en) * | 2015-11-24 | 2016-02-17 | 江苏永鼎盛达电缆有限公司 | Double-layer co-extrusion and insulation irradiation crosslinking process method and low-smoke halogen-free flame-retardant wire |
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| CN1359853A (en) * | 2000-12-19 | 2002-07-24 | 中国科学技术大学 | Acidular or flaky nano magnesium hydroxide and its preparing process |
| CN201256010Y (en) * | 2008-09-18 | 2009-06-10 | 常州市新东方电缆有限公司 | Thin-wall wire for engine |
| CN201281976Y (en) * | 2008-10-17 | 2009-07-29 | 南京绿安智能装饰布线集成有限公司 | Flame-proof electrical wire |
| CN101587761A (en) * | 2008-05-21 | 2009-11-25 | 上海电缆厂十分厂 | Weatherproof solar photovoltaic cable and fabricating method thereof |
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2010
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Patent Citations (4)
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| CN1359853A (en) * | 2000-12-19 | 2002-07-24 | 中国科学技术大学 | Acidular or flaky nano magnesium hydroxide and its preparing process |
| CN101587761A (en) * | 2008-05-21 | 2009-11-25 | 上海电缆厂十分厂 | Weatherproof solar photovoltaic cable and fabricating method thereof |
| CN201256010Y (en) * | 2008-09-18 | 2009-06-10 | 常州市新东方电缆有限公司 | Thin-wall wire for engine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664065A (en) * | 2012-05-04 | 2012-09-12 | 无锡市恒汇电缆有限公司 | Moisture-proof wire and manufacturing method thereof |
| CN103093873A (en) * | 2012-12-28 | 2013-05-08 | 深圳市沃尔核材股份有限公司 | Halogen-free high-flame-retardant cable |
| CN103093873B (en) * | 2012-12-28 | 2015-12-09 | 深圳市沃尔核材股份有限公司 | A kind of halogen-free high flame-retardant cable |
| CN103077783A (en) * | 2013-01-28 | 2013-05-01 | 常州市新东方电缆有限公司 | Production process of cable for high-speed train |
| CN103077783B (en) * | 2013-01-28 | 2016-02-17 | 常州市新东方电缆有限公司 | The production technology of bullet train cable |
| CN103928101A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Anti-static and inflaming-retarding flexible cable for computers |
| CN104700960A (en) * | 2015-02-02 | 2015-06-10 | 河北瑞光线缆有限公司 | Production process of cable for high-speed train |
| CN105336453A (en) * | 2015-11-24 | 2016-02-17 | 江苏永鼎盛达电缆有限公司 | Double-layer co-extrusion and insulation irradiation crosslinking process method and low-smoke halogen-free flame-retardant wire |
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Open date: 20100929 |