CN203397750U - Flexible cable with high temperature resistance for metallurgy - Google Patents
Flexible cable with high temperature resistance for metallurgy Download PDFInfo
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- CN203397750U CN203397750U CN201320435872.1U CN201320435872U CN203397750U CN 203397750 U CN203397750 U CN 203397750U CN 201320435872 U CN201320435872 U CN 201320435872U CN 203397750 U CN203397750 U CN 203397750U
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- temperature resistant
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- high temperature
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Abstract
The utility model discloses a flexible cable with high temperature resistance for metallurgy, and the objective of the utility model is to iron out the defects of poor performance of high temperature resistance, poor tear resistance and short service life in a conventional buggy ladle cable. The flexible cable comprises a cable inner core, and a cable outer layer which covers the cable inner core. The cable inner core comprises a conductive cable core, a wrapping mica tape layer, a silicone rubber insulating layer, and a fireproof high-temperature resistance layer, wherein the conductive cable core, the wrapping mica tape layer, the silicone rubber insulating layer and the fireproof high-temperature resistance layer are sequentially disposed from the inside to the outside. The cable outer layer comprises high flame retardation fire-insulation layer and a flame-retardation high tear resistance protection sleeve which are sequentially disposed from the inside to the outside. A gap between the cable inner core and the cable outer layer is filled with flame retardation filling ropes. The flexible cable is good in high temperature resistance, good in flame-retardation fireproof performance, good in tear resistance, good in insulating property, and long in service life.
Description
Technical field
The utility model relates to a kind of flexible cable, particularly a kind of high temperature resistant metallurgy flexible cable.
Background technology
At present, the widely used buggy ladle cable of China's metallurgy industry mainly be take copper as conductor, and General Purpose Rubber is the traditional handicraft of insulation and sheath material.China is that big country is produced, consumed to the first in the world iron and steel, buggy ladle cable demand is huge, cable environment for use is very special, severe, bear very large pulling force and ambient temperature is high, there will be at any time in using molten steel spatter boiling hot, slag collides with, cable car stretches, surface wear, internal break situation, cause cable to damage even and scrap in various degree.Traditional cable conductor structure is single, tensile strength is low; Insulation and sheath material mechanicalness, tear resistance, resist subdue, elasticity and poor processability; Oxytolerant and ozone resistance are poor, easily aged deterioration; Heat-resisting quantity is poor, and the corrosive power of antiacid alkali is low; Thermal endurance is low, and is combustible material.Therefore, generally can only move about 5-10 days, once cable goes wrong, solve not in time, molten steel just can not be transported to assigned address in time, and molten steel not only causes very large waste to resource together with will being set in buggy ladle, and consequence is very serious, economic loss is huge.
The of this type cables such as common rubber sleeve flexible cable that the industry converter cables such as current China iron and steel, metallurgy mostly adopt except import replace using, but product life cycle is very short, and there are many potential safety hazards, the production capacity benefit of the too much serious Ying Liaoxiang of replacing frequency China steel industry, for the metallurgical exploitation with flexible cable of super high-temperature resistant of research and development high performance requirements being extremely urgent.
The original sheath material of this flexible cable is traditional General Purpose Rubber, and heat-resisting quantity is poor, and tear resistance is poor, oxytolerant and ozone resistance are poor, easily aged deterioration, short useful life at metallurgy industry, and the high temperature resistant and tear resistance that this flexible cable overall structure arranges is all poor.
The disclosure of the invention of CN101847461A a kind of silicone rubber insulating fire-resisting flexible cable, comprise cable inner core and wrap in the cable outer layer outside cable inner core, in described cable, core inner is followed successively by conductor wire core, insulating barrier and flame retardant coating from inside to outside, described cable outer layer inside is followed successively by fire-retardant band and restrictive coating from inside to outside, in the space between described cable outer layer and cable inner core, is provided with flame retardant type filler.
Summary of the invention
The purpose of this utility model is to overcome that existing buggy ladle cable resistance to elevated temperatures is poor, and tear resistance is poor, the defect that useful life is short, a kind of high temperature resistant metallurgy flexible cable is provided, and heat-resisting quantity is good, and flame-retardant performance is good, tear resistance is good, good insulation preformance, long service life.
The utility model solves the technical scheme that its technical problem adopts:
A kind of high temperature resistant metallurgy flexible cable, comprise cable inner core and wrap in the cable outer layer outside cable inner core, described cable inner core is followed successively by conductor wire core, wrapped mica belt, silicone rubber insulation layer and fireproof high-temperature resistant layer from inside to outside, described cable outer layer is followed successively by high-flame retardant fire-insulating layer and the anti-tear sheath of fire-retardant height from inside to outside, is filled with fire-retardant gasket for packing in the space between cable inner core and cable outer layer.
Because cable is for a long time in high temperature furnace district mobile operating state, normal cable structure can not meet technique requirement, the present invention is directed to this point and carried out particular design, adopt: the structural type of (fireproof high-temperature resistant layer)+high temperature resistant filler (fire-retardant gasket for packing)+glass fibre belt wrapped (high-flame retardant fire-insulating layer)+anti-tear sheath of fire-retardant height is strengthened in the braiding of 6 class conductor (conductor wire core)+synthetic mica tapes (wrapped mica belt)+silicon rubber insulation+glass fiber.With the appropriate cable operating state in high temperature furnace district mobile operating state for a long time, heat-resisting quantity is good, and flame-retardant performance is good, and tear resistance is good, good insulation preformance, long service life.
Wrapped mica belt is hot-face insulation effect.The thickness of silicone rubber insulation layer is set according to product specification, is generally 1.2-2mm.The thickness of the anti-tear sheath of fire-retardant height is set according to product specification, is generally 2-4mm.
As preferably, described wrapped mica tape layer thickness is 0.2-0.5mm.Controlling wrapped mica tape layer thickness is that 0.2-0.5mm hot-face insulation performance is good.
As preferably, the thickness of described fireproof high-temperature resistant layer is 0.5-1mm.The thickness of controlling fireproof high-temperature resistant layer is 0.5-1mm, and fireproof high-temperature resistant performance is good.
As preferably, the material of described fireproof high-temperature resistant layer is fiberglass braided thing.The silicone rubber insulation layer of conventional structure is outward flame retardant coating, adopt nonwoven cloth material, the utility model is outward fireproof high-temperature resistant layer at silicone rubber insulation layer, and material is fiberglass braided thing, the surface structure intensity of cable inner core improves greatly like this, prevents that insulating barrier is easy to be full of cracks and fracture when crooked under frequent hot environment, improved useful life, and fireproof high-temperature resistant performance also significantly improves.
As preferably, the thickness of described high-flame retardant fire-insulating layer is 0.3-0.6mm.The thickness of controlling high-flame retardant fire-insulating layer is 0.3-0.6mm, high temperature resistant, fire resistance good.
As preferably, the material of described high-flame retardant fire-insulating layer is glass fiber tape.High-flame retardant fire-insulating layer is the wrapped two-layer formation of glass fiber tape.
As preferably, described fire-retardant gasket for packing is glass cord.
The beneficial effects of the utility model are:
1, adopt: the structural type of (fireproof high-temperature resistant layer)+high temperature resistant filler (fire-retardant gasket for packing)+glass fibre belt wrapped (high-flame retardant fire-insulating layer)+anti-tear sheath of fire-retardant height is strengthened in the braiding of conductor wire core+synthetic mica tape (wrapped mica belt)+silicon rubber insulation+glass fiber.With the appropriate cable operating state in high temperature furnace district mobile operating state for a long time, heat-resisting quantity is good, and flame-retardant performance is good, and tear resistance is good, good insulation preformance, long service life.
2, the cable fault that adopts the anti-tear sheath of fire-retardant height can effectively protect cable to cause compared with phase mutual friction between high and insulating barrier because of the cable bend coiling frequency under long term high temperature state; Thereby avoid cable in high-temperature electric free electric discharge phenomena after the match, even if cable still can keep certain effective run time in the situation that of Local Damaged, make the insulation property of cable in safe slave mode.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional structure schematic diagram of the present utility model.
In figure: 1, conductor wire core, 2, wrapped mica belt, 3, silicone rubber insulation layer, 4, fireproof high-temperature resistant layer, 5, high-flame retardant fire-insulating layer, 6, the anti-tear sheath of fire-retardant height, 7, fire-retardant gasket for packing.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of high temperature resistant metallurgy flexible cable as shown in Figure 1, comprise cable inner core and wrap in the cable outer layer outside cable inner core, cable inner core has 3, described cable inner core is followed successively by conductor wire core (copper conductor) 1, wrapped mica belt 2, silicone rubber insulation layer (thickness is generally 1.2-2mm) 3 and fireproof high-temperature resistant layer 4 from inside to outside, wrapped mica belt 2 thickness are 0.2-0.5mm, the material of fireproof high-temperature resistant layer 4 is fiberglass braided thing (commercially available), and the thickness of fireproof high-temperature resistant layer 4 is 0.5-1mm; Described cable outer layer is followed successively by high-flame retardant fire-insulating layer 5 and the anti-tear sheath of fire-retardant height (thickness is generally 2-4mm) 6 from inside to outside, the material of high-flame retardant fire-insulating layer 5 is glass fiber tape (commercially available), high-flame retardant fire-insulating layer 5 is the wrapped two-layer formation of glass fiber tape, and the thickness of high-flame retardant fire-insulating layer 5 is 0.3-0.6mm; In space between cable inner core and cable outer layer, be filled with fire-retardant gasket for packing 7, fire-retardant gasket for packing 7 is glass cord (commercially available).
The material prescription of the anti-tear sheath 6 of fire-retardant height is counted by weight: 100 parts of raw-silastic continuouslies (vinylsiloxane rubber, commercially available), constitution controller (diphenyl silanediol, commercially available) 7-8 part, reinforced filling (fumed silica, commercially available) 15-20 part, antioxidant (di-iron trioxide, commercially available) 6-8 part, halogen-free flame retardants (molybdenum trioxide, commercially available) 10-14 part, vulcanizing agent (2,5-dimethyl-2, two (tert-butyl peroxide) hexanes of 5-, commercially available) 10-15 part.
The material preparation method of the anti-tear sheath of fire-retardant height is: raw-silastic continuously is plasticated at 30 ± 1 ℃ of temperature evenly in mill, then add constitution controller, reinforced filling and antioxidant mixing 13-16min at 35-45 ℃, add again halogen-free flame retardants mixing 6-8min at 35-45 ℃, finally add vulcanizing agent mixing 5-7min at 35-45 ℃, cooling.
high temperature resistant, the fire-retardant fireproof performance of flexible cable of the present utility model and sheath material, anti-wear performance, resistance to bend(ing) energy:
1, the long-term permission working temperature of cable conductor reaches 90-250 ℃.
2, the maximum temperature of (maximum duration is no more than 5s) cable conductor is no more than 1000 ℃ during short circuit.
3, the fire retardancy test of cable cover(ing): while testing according to GB/T18380.11, the distance on the upper end of carbonization or impaired part and upper grip top is greater than 50mm.
4, fire-resistance property: cable carries out fire resistance test according to GB/T 19216.21, for fiery temperature, be 950-1000 ℃, be that the standard highest standard GA306.2-2007 of 180min(Ministry of Public Security I A level only needs 90min burning time), the rated voltage of energising cable, neither one fuse or circuit breaker disconnect; Conductor is continuous, and bulb does not extinguish.
5, anti-wear performance: reciprocating motion 2000 times, be one-way movement 4000 times, conductor does not open circuit, between conductor, should not be short-circuited, between cable and pulley (testing equipment), be not short-circuited, after off-test, peel cable cover(ing) (cable outer layer) off, insulated wire cores (cable inner core) stands the withstand voltage test of rated voltage and does not puncture.
6, the bending radius that cable allows is not less than 4 times of cable size, is applicable to the higher supply unit of the crooked frequency of high temperature occasion and connects.
Above-described embodiment is a kind of preferably scheme of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (7)
1. a high temperature resistant metallurgy flexible cable, comprise cable inner core and wrap in the cable outer layer outside cable inner core, it is characterized in that: described cable inner core is followed successively by conductor wire core (1), wrapped mica belt (2), silicone rubber insulation layer (3) and fireproof high-temperature resistant layer (4) from inside to outside, described cable outer layer is followed successively by high-flame retardant fire-insulating layer (5) and the anti-tear sheath of fire-retardant height (6) from inside to outside, is filled with fire-retardant gasket for packing (7) in the space between cable inner core and cable outer layer.
2. high temperature resistant metallurgy flexible cable according to claim 1, is characterized in that: described wrapped mica tape layer thickness is 0.2-0.5mm.
3. high temperature resistant metallurgy flexible cable according to claim 1 and 2, is characterized in that: the thickness of described fireproof high-temperature resistant layer is 0.5-1mm.
4. high temperature resistant metallurgy flexible cable according to claim 3, is characterized in that: the material of described fireproof high-temperature resistant layer is fiberglass braided thing.
5. high temperature resistant metallurgy flexible cable according to claim 1 and 2, is characterized in that: the thickness of described high-flame retardant fire-insulating layer is 0.3-0.6mm.
6. high temperature resistant metallurgy flexible cable according to claim 5, is characterized in that: the material of described high-flame retardant fire-insulating layer is glass fiber tape.
7. high temperature resistant metallurgy flexible cable according to claim 1 and 2, is characterized in that: described fire-retardant gasket for packing is glass cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435872.1U CN203397750U (en) | 2013-07-22 | 2013-07-22 | Flexible cable with high temperature resistance for metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435872.1U CN203397750U (en) | 2013-07-22 | 2013-07-22 | Flexible cable with high temperature resistance for metallurgy |
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| Publication Number | Publication Date |
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| CN203397750U true CN203397750U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320435872.1U Expired - Fee Related CN203397750U (en) | 2013-07-22 | 2013-07-22 | Flexible cable with high temperature resistance for metallurgy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413608A (en) * | 2013-07-22 | 2013-11-27 | 浙江万马电缆股份有限公司 | High temperature resistant flexible cable for metallurgy and sheathing material thereof |
| CN106128577A (en) * | 2016-08-31 | 2016-11-16 | 无锡江南电缆有限公司 | A kind of conductor stright-pulling type copper core copper sheath fire proof power cable |
| CN106782789A (en) * | 2017-01-10 | 2017-05-31 | 上海查尔斯电子有限公司 | A kind of power line |
-
2013
- 2013-07-22 CN CN201320435872.1U patent/CN203397750U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413608A (en) * | 2013-07-22 | 2013-11-27 | 浙江万马电缆股份有限公司 | High temperature resistant flexible cable for metallurgy and sheathing material thereof |
| CN103413608B (en) * | 2013-07-22 | 2016-02-24 | 浙江万马股份有限公司 | A kind of high temperature resistant flexible cable for metallurgy and sheath material thereof |
| CN106128577A (en) * | 2016-08-31 | 2016-11-16 | 无锡江南电缆有限公司 | A kind of conductor stright-pulling type copper core copper sheath fire proof power cable |
| CN106782789A (en) * | 2017-01-10 | 2017-05-31 | 上海查尔斯电子有限公司 | A kind of power line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG WANMA CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee after: ZHEJIANG WANMA CO., LTD. Address before: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee before: Zhejiang Wanma Cable Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20190722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |