CN105139929B - Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath - Google Patents
Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath Download PDFInfo
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- CN105139929B CN105139929B CN201510606128.7A CN201510606128A CN105139929B CN 105139929 B CN105139929 B CN 105139929B CN 201510606128 A CN201510606128 A CN 201510606128A CN 105139929 B CN105139929 B CN 105139929B
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Abstract
The invention discloses a mineral-insulated flexible fire-proof cable coated by a high-strength non-magnetic corrugated stainless steel sheath. The cable includes a wire which is arranged inside a cable-making lapping layer and is cladded with an insulation layer, inorganic heat-insulating fire-proof filling material which are filled between the insulation layer and the cable-making cladding layer, a stainless steel sheath which coats the outer circumferential surface of the cable-making cladding layer, and a fire-proof coating layer which is sprayed on the outer circumferential surface of the stainless steel sheath. The cable of the invention has the advantages of fire-proofness of mineral-insulated cables, simple production technology, flexibility in any-length section production, variable specifications, high strength and excellent flexibility, and convenient installation and laying.
Description
Technical field
The present invention relates to fireproof cable, especially relates to the anti-thermoelectricity of high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible
Cable.
Background technology
At present, the fireproof cable structure manufacturing both at home and abroad mainly has: the mi type mineral 1, invented the nineties in 19th century are exhausted
Edge cable (i.e. btt fire resisting copper pipe wiring)；2nd, fireproof mica wrapped insulating polymeric material cladding fire-resisting cable (nh type)；
3rd, fire prevention aluminum pipe separation sleeve type fireproof cable (ng type).
For mi type mineral insulated cable, due to making copper consumption increase using copper sheath, production cost increase；Furthermore adopt
Complicated with drawing copper tubes technical matters, equipment investment is big；In addition it is difficult to major diameter, long length section produces, there is electricity simultaneously
Cable especially hard so that laying installation, joint are all cumbersome.
Wrapped insulating polymeric material cladding fire-resisting cable (nh type) for fireproof mica, although manufacturing process is simple and becomes
This is relatively low, but the security reliability under 750 DEG C of -800 DEG C of flames is stable not as good as mi type mineral insulated cable, and electrical breakdown rate is very
Height, is therefore unsuitable for the higher place of safety requirements.
For fire prevention aluminum pipe separation sleeve type fireproof cable (ng type), due to adopting aluminium set, the fusing point of aluminium only has 660 DEG C, institute
With refractory temperature nor too high, and suppleness is poor, installs inconvenient.
Content of the invention
Present invention aim at providing a kind of high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable.
For achieving the above object, the present invention takes following technical proposals:
High-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable of the present invention, including being arranged on into
Cable lapping layer is interior, be surrounded with the wire of insulating barrier, is filled in the inorganic thermal insulation fire prevention between described insulating barrier and stranding lapping layer
Filler, is coated on the stainless steel sheath of stranding lapping layer outer peripheral face, is sprayed on the fireproof coating of described stainless steel sheath outer peripheral face
Layer；
Described insulating barrier be by thickness be 0.08～0.10mm alkali-free glass fibre band, in its inner and outer surfaces coating thickness
For 0.10～0.30mm mixing glue-line, and make through 180 DEG C of 10～20 min that are heating and curing；
The epoxy glue that described mixing glue-line is used, according to mass percent, is to be equal to or more than 500 purposes by granularity
Glass dust 5%～15%, granularity are equal to or more than the modifying epoxy resin by organosilicon thickening of the ceramic powder 15%～25%, 5% of 320 mesh
Agent, 65%～70% porcelain SiClx glue, blended rolling is made；
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 2-30 micron；
Described stainless steel sheath is bellows structure.
During actual manufacture, the epoxy glue that the mixing glue-line in fireproof cable of the present invention is used is (according to mass percent
Meter), the glass dust 5% of 500 mesh can be equal to by granularity, granularity be equal to 320 mesh ceramic powder 25%, 5% silicon-modified epoxy tree
Fat tackifier, 65% porcelain blended the rolling of SiClx glue are made；Inorganic thermal insulation fire-proof packing is by the glass fibers of 2 microns of filament diameter
Dimension silk is made；For manufacturing single fireproof cable insulating barrier.
During actual manufacture, the epoxy glue that the mixing glue-line in fireproof cable of the present invention is used is (according to percentage by weight
Meter), also the glass dust 15% of 550 mesh can be equal to by granularity, granularity be equal to 370 mesh ceramic powder 20%, 5% organic silicon modified epoxy
Oxygen tackifier resin, 60% porcelain SiClx glue, blended rolling is made；Inorganic thermal insulation fire-proof packing is by 18 microns of filament diameter
Glass fiber is made；For manufacturing control and signal fireproof cable insulating barrier.
During actual manufacture, the epoxy glue that the mixing glue-line in fireproof cable of the present invention is used is (according to percentage by weight
Meter), also the glass dust 10% of 600 mesh can be equal to by granularity, granularity be equal to 420 mesh ceramic powder 15%, 5% organic silicon modified epoxy
Oxygen tackifier resin, 70% porcelain SiClx glue, blended rolling is made；Inorganic thermal insulation fire-proof packing is by 30 microns of filament diameter
Glass fiber is made；For manufacturing multicore low pressure fire proof power cable core insulating barrier.
The invention has the advantages that having the fire performance of mineral insulated cable, simple production process, random length section produces,
Multi-size, and there is high intensity and good pliability, mounting and installation is convenient.Its advantage is embodied in following a few side
Face:
1st, insulating barrier fusing point is 1375 DEG C, and heatproof may be up to 1020 DEG C, due to without organic insulating polymeric material, thus
The generation of exclusion carbon granules, improves resistance to electrical stability.Meet the simple fire resistance test (c class) of National Fire design specification standard it may be assumed that
Apply under rated voltage for 950 DEG C of fire, 180min flame combustion sample, electrical current 3a fuse does not fuse；Water spray fire resisting examination
Test (w class) it may be assumed that applying under rated voltage for 650 DEG C of fire, the spray 15min flame combustion sample that adds water, electrical current 3a fuse
Do not fuse；Band impact fire resistance test (z class) it may be assumed that applied by fiery 15min flame combustion sample for 950 DEG C of fire, applying mechanical shock
Under rated voltage, electrical current 3a fuse does not fuse.
When the 2nd, laying need not separately poling, directly lay, and there is good fire prevention, waterproof, protecting against shock function.
3rd, there is protection against rodents, anti-ant, radiation proof function, cable good stability, long service life.
4th, temperature resistant grade is high, and combined closure system is big, and anti-overload ability is strong, safe.
5th, good corrosion resistance, is respectively provided with antisepsis to chemical substances such as general soda acids.
6th, high mechanical strength, the sheath of corrugated stainless steel tubing structure has good mechanical and physical performance, even if cable is sent out
Raw a certain degree of deformation remains to normal work, and also will not damage its electrical property when by violent mechanical damage；Meanwhile,
Nonmagnetic stainless steel sheath makes wire will not produce vortex phenomenon, improves cable combined closure system.
Brief description
Fig. 1 is the section structure schematic diagram of fireproof cable of the present invention.
Specific embodiment
As shown in figure 1, high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable of the present invention, bag
Include and be arranged in stranding lapping layer 1, be surrounded with the three of the wires 3 of insulating barrier 2, be filled between insulating barrier 2 and stranding lapping layer 1
Inorganic thermal insulation fire-proof packing 4, be coated on the ripple stainless steel sheath 5 of stranding lapping layer 1 outer peripheral face and to be sprayed on ripple stainless
The fireproof coating layer 6 of steel sheath 5 outer peripheral face；
Insulating barrier 2 is 0.08～0.10mm alkali-free glass fibre band and to be coated in alkali-free glass fibre band inside and outside by thickness
The thickness in face is made up through 180 DEG C of 10～20 min that are heating and curing of 0.10～0.30mm mixing glue-line, and mixing glue-line is used
Epoxy glue by mass percentage, the glass dust 5% of 500 mesh is equal to by granularity, granularity is equal to the ceramic powder 25%, 5% of 320 mesh
Modifying epoxy resin by organosilicon tackifier, 65% porcelain blended the rolling of SiClx glue make.Insulating barrier 2 passes through to mix with wire 3
Glue-line is combined closely, and decreases the air gap between insulating barrier 2 and wire 3, improves dielectric strength, the temperature resistant grade of finished cable
And mechanical strength.
Inorganic thermal insulation fire-proof packing 4 is made up of the glass fiber of 2 microns of filament diameter, and insulating barrier can be protected not burnt
Wound, plays fireproofing function simultaneously again；
Fireproof coating layer 6 can adopt far infrared curing technology, so that spraying is integrally worked continuously with bellows shaping, make outer painting
Coating and protective metal shell strong bonded, do not melt under flame, do not fire, and form inflatable anti-flaming thermal-insulation fireprotection layer.Ripple stainless steel
Sheath 5 can control screw thread outsourcing using plc, using ultrasonic detection technology, stainless steel band welded, ripple shaping, press one
Body is carried out continuously the sealing it is ensured that welding.
Certainly, in actual manufacture, the epoxy glue proportioning used by mixing glue-line, the selection of fire-proof packing, fireproof coating layer 6
The proportioning of middle coating can select it is also possible to reach its flameproof effect in the range of the present invention announces.
As: the mixing epoxy glue that used of glue-line by mass percentage, also can by granularity be equal to 550 mesh glass dust 15%,
Granularity is equal to the modifying epoxy resin by organosilicon tackifier of ceramic powder 20%, 5% of 370 mesh, 60% porcelain SiClx glue, blended stone roller
It is pressed into.Inorganic thermal insulation fire-proof packing 4 also can be made up of the glass fiber of 18 microns of filament diameter.
Or: the mixing epoxy glue that used of glue-line by mass percentage, also can by granularity be equal to 600 mesh glass dust 10%,
Granularity is equal to the modifying epoxy resin by organosilicon tackifier of ceramic powder 15%, 5% of 420 mesh, 70% porcelain SiClx glue, blended stone roller
It is pressed into.Inorganic thermal insulation fire-proof packing 4 also can be made up of the glass fiber of 30 microns of filament diameter.
Claims (3)
1. a kind of high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable, including being arranged on stranding lapping layer
Wire that is interior, being surrounded with insulating barrier, is filled in the inorganic thermal insulation fire-proof packing between described insulating barrier and stranding lapping layer, cladding
In the stainless steel sheath of stranding lapping layer outer peripheral face, it is sprayed on the fireproof coating layer of described stainless steel sheath outer peripheral face；Its feature
It is:
Described insulating barrier be by thickness be 0.08～0.10mm alkali-free glass fibre band, in its inner and outer surfaces coating thickness be
0.10～0.30mm mixing glue-line, and make through 180 DEG C of 10～20min that are heating and curing；
The epoxy glue that described mixing glue-line uses, according to mass percent, is glass dust 5%, the grain being equal to 500 mesh by granularity
Degree is equal to the modifying epoxy resin by organosilicon tackifier of ceramic powder 25%, 5% of 320 mesh, 65% porcelain SiClx glue, blended rolls
Make；
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of 2 microns of filament diameter；
Described stainless steel sheath is bellows structure.
2. a kind of high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable, including being arranged on stranding lapping layer
Wire that is interior, being surrounded with insulating barrier, is filled in the inorganic thermal insulation fire-proof packing between described insulating barrier and stranding lapping layer, cladding
In the stainless steel sheath of stranding lapping layer outer peripheral face, it is sprayed on the fireproof coating layer of described stainless steel sheath outer peripheral face；Its feature
It is:
Described insulating barrier be by thickness be 0.08～0.10mm alkali-free glass fibre band, in its inner and outer surfaces coating thickness be
0.10～0.30mm mixing glue-line, and make through 180 DEG C of 10～20min that are heating and curing；
The epoxy glue that described mixing glue-line uses, according to percentage by weight, is equal to glass dust 15%, granularity of 550 mesh etc. by granularity
In the ceramic powder 20%, 5% of 370 mesh modifying epoxy resin by organosilicon tackifier, 60% porcelain SiClx glue, blended rolling make；
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of 18 microns of filament diameter；
Described stainless steel sheath is bellows structure.
3. a kind of high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable, including being arranged on stranding lapping layer
Wire that is interior, being surrounded with insulating barrier, is filled in the inorganic thermal insulation fire-proof packing between described insulating barrier and stranding lapping layer, cladding
In the stainless steel sheath of stranding lapping layer outer peripheral face, it is sprayed on the fireproof coating layer of described stainless steel sheath outer peripheral face；Its feature
It is:
Described insulating barrier be by thickness be 0.08～0.10mm alkali-free glass fibre band, in its inner and outer surfaces coating thickness be
0.10～0.30mm mixing glue-line, and make through 180 DEG C of 10～20min that are heating and curing；
The epoxy glue that described mixing glue-line uses, according to percentage by weight, is equal to glass dust 10%, granularity of 600 mesh etc. by granularity
In the ceramic powder 15%, 5% of 420 mesh modifying epoxy resin by organosilicon tackifier, 70% porcelain SiClx glue, blended rolling make；
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of 30 microns of filament diameter；
Described stainless steel sheath is bellows structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606128.7A CN105139929B (en) | 2015-09-22 | 2015-09-22 | Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606128.7A CN105139929B (en) | 2015-09-22 | 2015-09-22 | Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath |
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| Publication Number | Publication Date |
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| CN105139929A CN105139929A (en) | 2015-12-09 |
| CN105139929B true CN105139929B (en) | 2017-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2018016097A (en) | 2016-06-29 | 2019-05-02 | Tae Tech Inc | Mineral insulated combined flux loop and b-dot wire. |
| CN106128608B (en) * | 2016-08-24 | 2017-10-20 | 宁波华众和创工业设计有限公司 | A kind of high-strength flexible fireproof cable and preparation method thereof |
| CN106653143B (en) * | 2016-12-26 | 2018-04-13 | 上海申通电缆厂有限公司 | Flexible insulation fireproof cable equipped with protective metal shell |
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| CN100409372C (en) * | 2005-07-20 | 2008-08-06 | 远东控股集团有限公司 | Fire-retardant electric wire |
| US8871306B2 (en) * | 2009-04-16 | 2014-10-28 | Chevron U.S.A. Inc. | Structural components for oil, gas, exploration, refining and petrochemical applications |
| CN101967335B (en) * | 2010-10-09 | 2013-09-25 | 青岛爱尔家佳新材料有限公司 | Breakdown-resistant insulating paint |
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