CN106297994A - A kind of insulating protective metal shell of mineral fire-resisting cable and manufacture method thereof and application - Google Patents
A kind of insulating protective metal shell of mineral fire-resisting cable and manufacture method thereof and application Download PDFInfo
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- CN106297994A CN106297994A CN201510253757.6A CN201510253757A CN106297994A CN 106297994 A CN106297994 A CN 106297994A CN 201510253757 A CN201510253757 A CN 201510253757A CN 106297994 A CN106297994 A CN 106297994A
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 142
- 239000011707 mineral Substances 0.000 title claims abstract description 141
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 73
- 239000002184 metal Substances 0.000 title claims abstract description 73
- 230000001681 protective effect Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000003063 flame retardant Substances 0.000 claims abstract description 94
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000000463 material Substances 0.000 claims abstract description 78
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 73
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 64
- 239000004020 conductor Substances 0.000 claims abstract description 42
- 239000000779 smoke Substances 0.000 claims abstract description 39
- 229920003023 plastic Polymers 0.000 claims abstract description 38
- 239000004033 plastic Substances 0.000 claims abstract description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 34
- 239000001301 oxygen Substances 0.000 claims abstract description 34
- 230000004888 barrier function Effects 0.000 claims abstract description 32
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 32
- 150000002367 halogens Chemical class 0.000 claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 238000004079 fireproofing Methods 0.000 claims abstract description 12
- 239000012774 insulation material Substances 0.000 claims abstract description 5
- 230000008961 swelling Effects 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000010451 perlite Substances 0.000 claims description 20
- 235000019362 perlite Nutrition 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 19
- 239000010439 graphite Substances 0.000 claims description 18
- 229910002804 graphite Inorganic materials 0.000 claims description 18
- 239000000347 magnesium hydroxide Substances 0.000 claims description 18
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 14
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 10
- 239000004945 silicone rubber Substances 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 9
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 9
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 8
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 235000012254 magnesium hydroxide Nutrition 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000009954 braiding Methods 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 241000206672 Gelidium Species 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 108010059642 isinglass Proteins 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 229910052627 muscovite Inorganic materials 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008029 eradication Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of insulating protective metal shell of mineral fire-resisting cable and manufacture method thereof and application.This cable includes being located at some insulated wire cores of inside and being coated on the aluminum metal sheath outside core and be coated on the anti-rot plastic layer of aluminum metal sheath outer layer, mineral oxygen barrier layer, the first flame-retardant layer, the fire-resistant expanding layer of mineral, metal shielding, the second flame-retardant layer and low-smoke non-halogen flame-retardant oversheath successively；Insulated wire cores is the metallic conductor that external sheath has mineral insulation layer.The method includes: first by mineral insulation material around wrapping in prepared insulated wire cores outside metallic conductor, then cable core it is twisted into, afterwards aluminum metal is extruded in outside cable core continuously, extrude anti-rot plastic and mineral oxygen barrier material the most successively, wrapped fire proofing, extrudes mineral refractory swelling material, braided metal silk, wrapped fire proofing, extrudes halogen-free low-smoke flame retardant material.The cable speed of production of the present invention is fast, cable length length, have the waterproof and fire resistant flame retardant anticollision of excellence.
Description
Technical field
The present invention relates to a kind of cable, particularly relate to a kind of insulating protective metal shell of mineral fire-resisting cable and
Manufacture method and application.
Background technology
What common fire-resisting cable typically insulated use is all high-molecular organic material, therefore at flame condition
Under easily carbonization and lose insulating effect, it is unable to reach under 950 DEG C of flames fire-resistant 3 on refractory ability
Hour requirement, and without functions such as waterproof, anticollisioves, be difficult to meet the demand in market.Mineral are exhausted
Edge cable main material uses inorganic mineral or mineral compound, and these materials the most all have higher melt,
It is not easy to burn or combustion-supporting under flame condition, becomes the focus studied in the last few years.
In existing market, application disclosure satisfy that what BS6387 standard C.W.Z level fire resistance test only has
With the BTT class rigidity mineral insulated cable of magnesium oxide insulated copper pipe sheath, but such mineral insulation electricity
Cable is opaque due to magnesium oxide insulated material and copper pipe sheath cannot directly extrude, and causing it to produce can only
Following more than 100 year front repeatedly drawing and dial moulding process, this technique speed of production is slow, engineering length is short, connect
Head is many, manufacturing environment severe (dust), field installation process are complicated.Although flexible mineral insulation cable
Can preferably overcome drawbacks described above, but generally use due to it copper strips to indulge bag welding procedure, commissure is easy
Solder skip, easy to fall off, water resistance is poor, bends, weld seam easily ftractures when burning, and there is use safety the most hidden
Suffer from.And aluminum metal is owing to extruding continuously, become the current preferable protective metal shell of flexible mineral insulation cable
Material.Chinese patent CN2745194A discloses one, and to extrude mineral insulation protective metal shell continuously fire-resistant
Cable, its use metallic aluminium as sheath, although this cable the most also can be by the inspection of BS6387
Survey, but due to the unicity on this Cable Construction Design, without stable anti-collision structure, fire resistance
It not highly stable, and aluminum metal set can only extrude relatively thin thickness continuously because technique limits, and causes
The substandard requirement of body D.C. resistance, it is impossible to use as ground connection core (PE line or protective earthing-neutral conductor),
And it is unable to reach the fire-resistant bump test of 2 hours of BS8491 regulation, i.e. cannot meet fire-resistant and clash into
After carrying out two hours, 5 minutes cables of Water spray do not puncture again simultaneously.
Summary of the invention
Technical problem solved by the invention is precisely in order to overcome existing BTT class rigidity mineral insulation resistance to
Thermoelectricity cable speed of production is slow, engineering length is short, joint is many, manufacturing environment is severe, field installation process is multiple
Miscellaneous defect and existing flexible mineral insulation cable fire unstable properties, BS8491 cannot be met
The defect of the fire-resistant bump test of 2 hours of standard regulation, it is provided that a kind of insulating protective metal shell of mineral is fire-resistant
Cable and manufacture method thereof and application.The insulating protective metal shell of mineral fire-resisting cable of the present invention is that all-round connects
Continuing and extrude insulating protective metal shell of mineral fire-resisting cable, this fire-resisting cable can reach BS6387 regulation
C.W.Z rank, moreover it is possible to meet the fire-resistant bump test of 2 hours that BS8491 standard specifies, the most fire-resistant
After carrying out two hours with shock, 5 minutes cables of Water spray do not puncture again simultaneously, and speed of production is fast, can
With long length and whole continuous production, owing to the metal tube of continuous seamless technology exists so that this flame proof electrical
Cable has the water resistance of excellence.
The present invention solves above-mentioned technical problem by following technical proposals.
The invention provides a kind of insulating protective metal shell of mineral fire-resisting cable, including being located at described mineral insulation
Some insulated wire cores within protective metal shell fire-resisting cable, an aluminum metal sheath, an anti-rot plastic layer,
One mineral oxygen barrier layer, one first flame-retardant layer, a fire-resistant expanding layer of mineral, a metal shielding, one
Second flame-retardant layer and the low-smoke non-halogen flame-retardant being located at described insulating protective metal shell of mineral fire-resisting cable outer layer
Oversheath；Described insulated wire cores is the metallic conductor that external sheath has a mineral insulation layer；Described aluminium gold
Belonging to sheath and be coated on the outside of described some insulated wire cores, the outer layer of described aluminum metal sheath is coated with successively
Described anti-rot plastic layer, described mineral oxygen barrier layer, described first flame-retardant layer, described mineral are fire-resistant swollen
Swollen layer, described metal shielding, described second flame-retardant layer and described low-smoke non-halogen flame-retardant oversheath.
Wherein, the radical of described insulated wire cores is preferably 1～5, is more preferably 1～4.
Wherein, the material of described mineral insulation layer can use material commonly used in the art, preferably
For fireproof mica.The thickness of described mineral insulation layer is preferably 0.4～1.8mm.
Wherein, the material of described metallic conductor can use material commonly used in the art, preferably copper.
The sectional area of described metallic conductor is preferably 1.5～630mm2。
Wherein, described aluminum metal sheath typically uses and extrudes jointless technique continuously and be coated on described some eradications
The outside of edge core, described extrude jointless technique continuously this area routine operation can be used to carry out, described
Aluminum metal sheath has the waterproof and moistureproof performance of excellence.The thickness of described aluminum metal sheath is preferably
1.2～1.8mm, it is more preferably 1.2～1.5mm.
Wherein, the thickness of described anti-rot plastic layer is preferably 1.0mm.Described anti-rot plastic layer is preferably
For profile of tooth anti-rot plastic layer, the tooth height of described profile of tooth is preferably 0.6mm.Described anti-rot plastic layer
Material can use material commonly used in the art, preferably polyethylene and/or crosslinked polyethylene.
Wherein, the material of described mineral oxygen barrier layer is preferably made up of perlite, magnesium hydroxide and graphite.
Described mineral oxygen barrier layer has the fire protecting performance of excellence, and heat can decompose water outlet.Described mineral oxygen barrier
The thickness of layer is preferably 1.0～2.0mm.
Wherein, the material of described first flame-retardant layer can use material commonly used in the art, preferably
Halogen-free low-smoke flame retardant material.The thickness of described first flame-retardant layer is preferably 1.2～1.8mm.
Wherein, the material of the fire-resistant expanding layer of described mineral is preferably by waterglass, perlite, hydroxide
Magnesium, aluminium hydroxide and graphite composition.The material of the fire-resistant expanding layer of described mineral have higher viscosity and
Fastness so that the fire-resistant expanding layer of mineral heat can expand and form duricrust, to prevent the invasion and attack of flame.
The thickness of the fire-resistant expanding layer of described mineral is preferably 2.0～3.0mm.
Wherein, described metal shielding is preferably formed by metal wire knitted, and described diameter wiry is relatively
It is 0.6～1.0mm goodly.Described metal shielding is more preferably formed by stainless steel silk and/or proof copper-wire braided.
Described metal shielding coordinates the fire-resistant expanding layer of described mineral to constitute a stable anti-collision structure.Institute
The thickness stating metal shielding is preferably 1.2～2.0mm.
Wherein, the material of described second flame-retardant layer can use material commonly used in the art, preferably
Fire resistant ceramic silicone rubber.Described second flame-retardant layer can ensure described metal shielding and described when fire-resistant
The anti-collision structure that the fire-resistant expanding layer of mineral is constituted is indeformable.The thickness of described second flame-retardant layer is preferably
It is 1.2～1.8mm.
Wherein, the material of described low-smoke non-halogen flame-retardant oversheath can use material commonly used in the art,
It is preferably polyolefin or the elastomeric material of low-smoke non-halogen flame-retardant.Described low-smoke non-halogen flame-retardant oversheath
Thickness is preferably 1.8～3.8mm, is more preferably 1.8～3.3mm.
Present invention also offers the manufacture method of above-mentioned insulating protective metal shell of mineral fire-resisting cable, it include as
Lower step:
(1) by mineral insulation material around wrapping in outside metallic conductor, a mineral insulation layer is formed,
Prepare an insulated wire cores；
(2) some described insulated wire cores are twisted into cable core, then aluminum metal is extruded in continuously institute
State outside cable core, form an aluminum metal sheath；
(3) anti-rot plastic is extruded in outside described aluminum metal sheath, forms an anti-rot plastic layer；
(4) mineral oxygen barrier material is extruded in outside described anti-rot plastic layer, formed a mineral every
Oxygen layer；
(5) by fire proofing around wrapping in outside described mineral oxygen barrier layer, one first flame-retardant layer is formed；
(6) mineral refractory swelling material is extruded in outside described first flame-retardant layer, forms mineral
The fire-resistant expanding layer of matter；
(7) weave with tinsel outside the fire-resistant expanding layer of described mineral, form a metal and add
Strong layer；
(8) by fire proofing around wrapping in outside described metal shielding, one second flame-retardant layer is formed；
(9) halogen-free low-smoke flame retardant material is extruded in outside described second flame-retardant layer, formed a low cigarette without
The fire-retardant oversheath of halogen.
In step (1), described metallic conductor is preferably formed, more preferably by copper by conductor monofilament is stranded
Monofilament is stranded to be formed.The sectional area of described metallic conductor is preferably 1.5～630mm2.Art technology
The diameter of conductor monofilament and radical can be selected by personnel according to the sectional area of metallic conductor of the present invention.
In step (1), described mineral insulation material is preferably fireproof mica.Described wrapped thickness
Degree preferably 0.4～1.8mm, those skilled in the art are according to step (1) mineral insulant
Wrapped thickness the wrapped number of plies can be selected.
In step (2), described cable core is preferably formed, more preferably by 1～5 described insulated wire cores is stranded
Ground is formed by 1～4 described insulated wire cores is stranded.Described cable core should require surfacing, no concave-convex or torsion
Bent.
In step (2), described aluminum metal is extruded continuously before, described aluminum metal is preferably through pre-place
Reason, described pretreatment is carried out preferably according to following step: first brush away the dust on aluminum metal surface with hairbrush
Foul, cleans the greasy dirt removing aluminum metal surface the most again, makes aluminum metal surface cleaning clean；Described use
Hairbrush brushes away the dust foul on aluminum metal surface and brush unit can be used to carry out, and described cleaning removes aluminum metal
The greasy dirt on surface can use on-line cleaning system to carry out.
In step (2), described in extrude the extruder that this area can be used conventional and carry out, described extruder
Die holder on be generally equipped with the circumference that feeding guide-plate and cavity, feeding guide-plate and cavity take turns with extruding and match
And forming extrusion chamber with the material blocking block on cavity, pressing material is compacted through compact wheel, under the effect of frictional force
It is continuously fed into extrusion chamber, blank circumferentially retard motion before material blocking block, enter cavity, pass through cavity
Interior extrusion die extrusion aluminum metal sheath.Described cavity preferably through preheating, described in preheat relatively
It is to place in the baking oven of 550～650 DEG C 4～5 hours goodly, more preferably places in the baking oven of 600 DEG C
4～5 hours.
In step (2), described in the temperature that extrudes be preferably 480～530 DEG C, be more preferably 500 DEG C.
The described thickness extruded is preferably 1.2～1.8mm, is more preferably 1.2～1.5mm.Described aluminum metal is protected
The conductor DC resistance of set should be greater than the requirement of corresponding copper ground connection core, using meet aluminum metal sheath as
The requirement of ground connection core (PE line or protective earthing-neutral conductor).
In step (3), described anti-rot plastic is preferably polyethylene and/or crosslinked polyethylene.
In step (3), described in extrude and preferably use 90 type extruders to carry out, described in the temperature that extrudes
Preferably experience seven temperature provinces, respectively 170～175 DEG C, 175～180 DEG C, 180～185 DEG C,
185～190 DEG C, 190～195 DEG C, 190～195 DEG C and 195～200 DEG C.The described thickness extruded is preferably
For 1.0mm.
In step (3), described anti-rot plastic layer is preferably profile of tooth anti-rot plastic layer, described profile of tooth
Tooth height is preferably 0.6mm.
In step (4), described mineral oxygen barrier material is preferably by perlite, magnesium hydroxide and graphite
Composition.
In step (4), described in extrude preferably employing cold-extruded mode, described cold-extruded can use this area
Conventional extruder is carried out, and described extruder typically has special head and wolfram steel mould, without the thermal treatment zone.
The described thickness extruded is preferably 1.0～2.0mm.
In step (5), described fire proofing is preferably halogen-free low-smoke flame retardant material.Described wrapped
Thickness is preferably 1.2～1.8mm, those skilled in the art according in step (5) fire proofing around
The wrapped number of plies can be selected by bag thickness.
In step (6), described mineral refractory swelling material is preferably by waterglass, perlite, hydrogen
Magnesium oxide, aluminium hydroxide and graphite composition.
In step (6), described in extrude preferably employing cold-extruded mode, described cold-extruded can use this area
Conventional extruder is carried out, and described extruder typically has special head and wolfram steel mould, without the thermal treatment zone.
The described thickness extruded is preferably 2.0～3.0mm.
In step (7), described diameter wiry is preferably 0.6～1.0mm.Described tinsel is relatively
Goodly for stainless steel silk and/or copper wire.The thickness of described braiding is preferably 1.2～2.0mm.Described metal
Enhancement Layer coordinates the fire-resistant expanding layer of described mineral to constitute a stable anti-collision structure.
In step (8), described fire proofing is preferably fire resistant ceramic silicone rubber.Described wrapped thickness
Degree preferably 1.2～1.8mm, those skilled in the art are according to fire proofing wrapped in step (8)
The wrapped number of plies can be selected by thickness.Described second flame-retardant layer can ensure described metal when fire-resistant
The anti-collision structure that enhancement Layer and the fire-resistant expanding layer of described mineral are constituted is indeformable.
In step (9), described halogen-free low-smoke flame retardant material is preferably the polyolefin of low-smoke non-halogen flame-retardant
Or elastomeric material.
In step (9), described in extrude and preferably use 120 type extruders to carry out, described in the temperature that extrudes
Degree preferably experience eight temperature provinces, respectively 90～95 DEG C, 90～95 DEG C, 95～100 DEG C, 100～110 DEG C,
115～120 DEG C, 120～125 DEG C, 125～130 DEG C and 130～135 DEG C.The described thickness extruded is preferably
It is 1.8～3.8mm, is more preferably 1.8～3.3mm.
Present invention also offers above-mentioned insulating protective metal shell of mineral fire-resisting cable to need to protect under Fire Conditions
Hold distribution that circuit integrity can require, illuminate, control and application in warning system.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, i.e. get Ben Fa
Bright each preferred embodiments.
Agents useful for same of the present invention and raw material are the most commercially.
The most progressive effect of the present invention is:
(1) the aluminum metal sheath selected in the insulating protective metal shell of mineral fire-resisting cable of the present invention can be continuous
Extruding formation, therefore cable length length and whole are continuously；Overlap due to the aluminum metal of seamless extrusion and exist, electricity
Cable has the water resistance of excellence, and has rat-and-ant proof, anti-scattered strays stream, the jamproof effect of resistance to compression.
Meanwhile, this aluminum metal sheath also serves as the most again PE line or protective earthing-neutral conductor, thus reduces same specification
The diameter of cable, and the life safety in electricity consumption can be improved, it is to avoid the generation of electric shock accidents.
(2) the insulating protective metal shell of mineral fire-resisting cable of the present invention is arranged especially at aluminum metal sheath outer layer
One mineral oxygen barrier layer and the fire-resistant expanding layer of a mineral；This mineral oxygen barrier layer has hot-cast socket function,
Magnesium hydroxide heat can decomposite thermal resistance little (thickness is thin) before magnesium oxide and water, i.e. ignition of cable, in order to
Heat radiation；The fire-resistant expanding layer of this mineral have employed tinsel while extrusion and weaves, and mineral is resistance to
Fire expanding layer and tinsel constitute enhancement Layer, have and can form duricrust after heated, generate many spaces, height
The thermal resistance material of foaming, and then strengthen the high-temperature resistance of built-in aluminum metal sheath, can fully meet
The C.W.Z rank of BS6387 standard, and 2 hours can specified by BS8491 standard is resistance to
Fire adds bump test, and the spray test of 5min.
(3) the insulating protective metal shell of mineral fire-resisting cable of the present invention can be applicable to need under Fire Conditions to protect
Hold distribution that circuit integrity can require, illuminate, control and warning system.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of insulating protective metal shell of mineral fire-resisting cable of the present invention, wherein, 1
For insulated wire cores, 2 is mineral insulation layer, and 3 is metallic conductor, and 4 is aluminum metal sheath, and 5 is profile of tooth
Anti-rot plastic layer, 6 is mineral oxygen barrier layer, and 7 is the first flame-retardant layer, and 8 is the fire-resistant expanding layer of mineral,
9 is metal shielding, and 10 is the second flame-retardant layer, and 11 is low-smoke non-halogen flame-retardant oversheath.
Detailed description of the invention
Further illustrate the present invention below by the mode of embodiment, but the most therefore limit the present invention to
Among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, according to often
Rule method and condition, or select according to catalogue.
In following embodiment, material raw material used is the most commercially.
Embodiment 1
A kind of insulating protective metal shell of mineral fire-resisting cable, its cross section structure is as it is shown in figure 1, this mineral insulation
Being provided with four insulated wire cores 1 in protective metal shell fire-resisting cable, the outer layer of insulated wire cores 1 is mineral insulation
Layer 2 and in be provided with metallic conductor 3, aluminum metal sheath 4 is coated on the outside of four insulated wire cores 1,
The outer layer of aluminum metal sheath 4 is coated with profile of tooth anti-rot plastic layer 5 successively, mineral oxygen barrier layer 6, first hinders
Combustion layer 7, the fire-resistant expanding layer of mineral 8, metal shielding the 9, second flame-retardant layer 10 and low smoke and zero halogen resistance
Combustion oversheath 11.Wherein, mineral insulation layer 2 is made up of fireproof mica material, and layer thickness is 0.7mm；
Metallic conductor 3 is formed by copper monofilament is stranded, and sectional area is 35mm2；The thickness of aluminum metal sheath 4 is
1.2mm；Profile of tooth anti-rot plastic layer 5 is made up of crosslinked polyethylene material, and layer thickness is 1.0mm, tooth depth
For 0.6mm；The material that mineral oxygen barrier layer 6 is combined by perlite, magnesium hydroxide and graphite is made, layer
Thickness is 1.0mm；First flame-retardant layer 7 is made up of LSOH anti-flaming material, and layer thickness is 1.2mm；
The fire-resistant expanding layer of mineral 8 is combined by waterglass, perlite, magnesium hydroxide, aluminium hydroxide and graphite
Material is made, and layer thickness is 2.0mm；Metal shielding 9 is formed by proof copper-wire braided, and brass wire diameter is
0.6mm, layer thickness is 1.2mm；Second flame-retardant layer 10 is made up of fire resistant ceramic silicone rubber material, layer
Thickness is 1.2mm；Low-smoke non-halogen flame-retardant oversheath 11 is made up of the polyolefin material of low-smoke non-halogen flame-retardant,
Oversheath thickness is 2.2mm.
It is prepared by following manufacture method:
(1) copper conductor monofilament being twisted into sectional area is 35mm2Metallic conductor, then outside it
Wrapped fire-resistant isinglass belt, wrapped thickness is 0.7mm, forms a mineral insulation layer, prepares a covered wire
Core；
(2) four insulated wire cores are twisted into cable core, cable core surfacing, no concave-convex or distortion；So
After by aluminum metal brush unit the foul such as dust removing surface, then wash away surface with online purging system
Greasy dirt, make aluminum metal surface cleaning clean, be extruded in cable core continuously by cleaning clean metallic aluminium afterwards
Outside, extrudes the cavity of front extruder and is first placed in preheating 4.5 hours in the baking oven of 600 DEG C, extrude temperature
Being 500 DEG C, the thickness extruded is 1.2mm, to form an aluminum metal sheath, the conductor of aluminum metal sheath
D.C. resistance is more than the requirement of corresponding copper ground connection core；
(3) 90 type extruders are used to be extruded in outside aluminum metal sheath by crosslinked polyethylene, the temperature extruded
Degree experience seven temperature provinces, respectively 170～175 DEG C, 175～180 DEG C, 180～185 DEG C, 185～190 DEG C,
190～195 DEG C, 190～195 DEG C and 195～200 DEG C, the thickness extruded is 1.0mm, to form a profile of tooth
Anti-rot plastic layer, tooth depth is 0.6mm；
(4) use cold-extruded mode that the compound of perlite, magnesium hydroxide and graphite is extruded in profile of tooth to prevent
Outside rotten plastic layer, the thickness extruded is 1.0mm, forms a mineral oxygen barrier layer；
(5) by LSOH anti-flaming material band around wrapping in outside mineral oxygen barrier layer, wrapped thickness is
1.2mm, forms one first flame-retardant layer；
(6) use cold-extruded mode by waterglass, perlite, magnesium hydroxide, aluminium hydroxide and graphite
Compound is extruded in outside the first flame-retardant layer, and the thickness extruded is 2.0mm, forms a mineral fire-resistant swollen
Swollen layer；
(7) weave with the copper wire of a diameter of 0.6mm outside the fire-resistant expanding layer of mineral, braiding
Thickness is 1.2mm, forms a metal shielding；
(8) by fire resistant ceramic silicone rubber band around wrapping in outside metal shielding, wrapped thickness is 1.2mm,
Form one second flame-retardant layer；
(9) 120 type extruders are used to be extruded in outside the second flame-retardant layer by the polyolefin of low-smoke non-halogen flame-retardant
Side, the temperature extruded experience eight temperature provinces, respectively 90～95 DEG C, 90～95 DEG C, 95～100 DEG C,
100～110 DEG C, 115～120 DEG C, 120～125 DEG C, 125～130 DEG C and 130～135 DEG C, the thickness extruded
For 2.2mm, to form a low-smoke non-halogen flame-retardant oversheath.
Embodiment 2
A kind of insulating protective metal shell of mineral fire-resisting cable, its cross section structure is as it is shown in figure 1, this mineral insulation
Being provided with an insulated wire cores 1 in protective metal shell fire-resisting cable, the outer layer of insulated wire cores 1 is mineral insulation
Layer 2 and in be provided with metallic conductor 3, aluminum metal sheath 4 is coated on the outside of an insulated wire cores 1,
The outer layer of aluminum metal sheath 4 is coated with profile of tooth anti-rot plastic layer 5 successively, mineral oxygen barrier layer 6, first hinders
Combustion layer 7, the fire-resistant expanding layer of mineral 8, metal shielding the 9, second flame-retardant layer 10 and low smoke and zero halogen resistance
Combustion oversheath 11.Wherein, mineral insulation layer 2 is made up of fireproof mica material, and layer thickness is 1.8mm；
Metallic conductor 3 is formed by copper monofilament is stranded, and sectional area is 630mm2；The thickness of aluminum metal sheath 4 is
1.5mm；Profile of tooth anti-rot plastic layer 5 is made up of polyethylene material, and layer thickness is 1.0mm, and tooth depth is
0.6mm；The material that mineral oxygen barrier layer 6 is combined by perlite, magnesium hydroxide and graphite is made, thickness
Thickness is 2.0mm；First flame-retardant layer 7 is made up of LSOH anti-flaming material, and layer thickness is 1.8mm；Ore deposit
The material that the fire-resistant expanding layer of material 8 is combined by waterglass, perlite, magnesium hydroxide, aluminium hydroxide and graphite
Matter is made, and layer thickness is 3.0mm；Metal shielding 9 is formed by stainless steel silk braiding, and stainless steel silk is straight
Footpath is 1.0mm, and layer thickness is 2.0mm；Second flame-retardant layer 10 is made up of fire resistant ceramic silicone rubber material,
Layer thickness is 1.8mm；Low-smoke non-halogen flame-retardant oversheath 11 is by the elastomer material system of low-smoke non-halogen flame-retardant
Becoming, oversheath thickness is 3.3mm.
It is prepared by following manufacture method:
(1) copper conductor monofilament being twisted into sectional area is 630mm2Metallic conductor, then outside it
Wrapped fire-resistant isinglass belt, wrapped thickness is 1.8mm, forms a mineral insulation layer, prepares a covered wire
Core；
(2) insulated wire cores surfacing, no concave-convex or distortion；Then aluminum metal brush unit is gone
The fouls such as the dust falling surface, then the greasy dirt on surface is washed away with online purging system, make aluminum metal surface clear
Clean totally, afterwards by clean clean metallic aluminium be extruded in continuously outside cable core, extrude the chamber of front extruder
Body preheats 4 hours in being first placed in the baking oven of 650 DEG C, and extruding temperature is 480 DEG C, and the thickness extruded is
1.5mm, to form an aluminum metal sheath, the conductor DC resistance of aluminum metal sheath connects more than corresponding copper
The requirement of wire core；
(3) 90 type extruders are used to be extruded in outside aluminum metal sheath by polyethylene, the temperature warp extruded
Go through seven temperature provinces, respectively 170～175 DEG C, 175～180 DEG C, 180～185 DEG C, 185～190 DEG C,
190～195 DEG C, 190～195 DEG C and 195～200 DEG C, the thickness extruded is 1.0mm, to form a profile of tooth
Anti-rot plastic layer, tooth depth is 0.6mm；
(4) use cold-extruded mode that the compound of perlite, magnesium hydroxide and graphite is extruded in profile of tooth to prevent
Outside rotten plastic layer, the thickness extruded is 2.0mm, forms a mineral oxygen barrier layer；
(5) by LSOH anti-flaming material band around wrapping in outside mineral oxygen barrier layer, wrapped thickness is
1.8mm, forms one first flame-retardant layer；
(6) use cold-extruded mode by waterglass, perlite, magnesium hydroxide, aluminium hydroxide and graphite
Compound is extruded in outside the first flame-retardant layer, and the thickness extruded is 3.0mm, forms a mineral fire-resistant swollen
Swollen layer；
(7) weave with the stainless steel silk of a diameter of 1.0mm outside the fire-resistant expanding layer of mineral,
Braiding thickness is 2.0mm, forms a metal shielding；
(8) by fire resistant ceramic silicone rubber band around wrapping in outside metal shielding, wrapped thickness is 1.8mm,
Form one second flame-retardant layer；
(9) 120 type extruders are used to be extruded in outside the second flame-retardant layer by the elastomer of low-smoke non-halogen flame-retardant
Side, the temperature extruded experience eight temperature provinces, respectively 90～95 DEG C, 90～95 DEG C, 95～100 DEG C,
100～110 DEG C, 115～120 DEG C, 120～125 DEG C, 125～130 DEG C and 130～135 DEG C, the thickness extruded
For 3.3mm, to form a low-smoke non-halogen flame-retardant oversheath.
Embodiment 3
A kind of insulating protective metal shell of mineral fire-resisting cable, its cross section structure is as it is shown in figure 1, this mineral insulation
Being provided with five insulated wire cores 1 in protective metal shell fire-resisting cable, the outer layer of insulated wire cores 1 is mineral insulation
Layer 2 and in be provided with metallic conductor 3, aluminum metal sheath 4 is coated on the outside of five insulated wire cores 1,
The outer layer of aluminum metal sheath 4 is coated with profile of tooth anti-rot plastic layer 5 successively, mineral oxygen barrier layer 6, first hinders
Combustion layer 7, the fire-resistant expanding layer of mineral 8, metal shielding the 9, second flame-retardant layer 10 and low smoke and zero halogen resistance
Combustion oversheath 11.Wherein, mineral insulation layer 2 is made up of fireproof mica material, and layer thickness is 0.4mm；
Metallic conductor 3 is formed by copper monofilament is stranded, and sectional area is 1.5mm2；The thickness of aluminum metal sheath 4 is
1.2mm；Profile of tooth anti-rot plastic layer 5 is made up of crosslinked polyethylene material, and layer thickness is 1.0mm, tooth depth
For 0.6mm；The material that mineral oxygen barrier layer 6 is combined by perlite, magnesium hydroxide and graphite is made, layer
Thickness is 1.0mm；First flame-retardant layer 7 is made up of LSOH anti-flaming material, and layer thickness is 1.2mm；
The fire-resistant expanding layer of mineral 8 is combined by waterglass, perlite, magnesium hydroxide, aluminium hydroxide and graphite
Material is made, and layer thickness is 2.0mm；Metal shielding 9 is formed by proof copper-wire braided, and brass wire diameter is
0.6mm, layer thickness is 1.2mm；Second flame-retardant layer 10 is made up of fire resistant ceramic silicone rubber material, layer
Thickness is 1.2mm；Low-smoke non-halogen flame-retardant oversheath 11 is made up of the polyolefin material of low-smoke non-halogen flame-retardant,
Oversheath thickness is 1.8mm.
It is prepared by following manufacture method:
(1) copper conductor monofilament being twisted into sectional area is 1.5mm2Metallic conductor, then outside it
Wrapped fire-resistant isinglass belt, wrapped thickness is 0.4mm, forms a mineral insulation layer, prepares a covered wire
Core；
(2) five insulated wire cores are twisted into cable core, cable core surfacing, no concave-convex or distortion；So
After by aluminum metal brush unit the foul such as dust removing surface, then wash away surface with online purging system
Greasy dirt, make aluminum metal surface cleaning clean, be extruded in cable core continuously by cleaning clean metallic aluminium afterwards
Outside, extrudes the cavity of front extruder and is first placed in preheating 5 hours in the baking oven of 550 DEG C, and extruding temperature is
530 DEG C, the thickness extruded is 1.2mm, and to form an aluminum metal sheath, the conductor of aluminum metal sheath is straight
Leakage resistance is more than the requirement of corresponding copper ground connection core；
(3) 90 type extruders are used to be extruded in outside aluminum metal sheath by crosslinked polyethylene, the temperature extruded
Degree experience seven temperature provinces, respectively 170～175 DEG C, 175～180 DEG C, 180～185 DEG C, 185～190 DEG C,
190～195 DEG C, 190～195 DEG C and 195～200 DEG C, the thickness extruded is 1.0mm, to form a profile of tooth
Anti-rot plastic layer, tooth depth is 0.6mm；
(4) use cold-extruded mode that the compound of perlite, magnesium hydroxide and graphite is extruded in profile of tooth to prevent
Outside rotten plastic layer, the thickness extruded is 1.0mm, forms a mineral oxygen barrier layer；
(5) by LSOH anti-flaming material band around wrapping in outside mineral oxygen barrier layer, wrapped thickness is
1.2mm, forms one first flame-retardant layer；
(6) use cold-extruded mode by waterglass, perlite, magnesium hydroxide, aluminium hydroxide and graphite
Compound is extruded in outside the first flame-retardant layer, and the thickness extruded is 2.0mm, forms a mineral fire-resistant swollen
Swollen layer；
(7) weave with the copper wire of a diameter of 0.6mm outside the fire-resistant expanding layer of mineral, braiding
Thickness is 1.2mm, forms a metal shielding；
(8) by fire resistant ceramic silicone rubber band around wrapping in outside metal shielding, wrapped thickness is 1.2mm,
Form one second flame-retardant layer；
(9) 120 type extruders are used to be extruded in outside the second flame-retardant layer by the polyolefin of low-smoke non-halogen flame-retardant
Side, the temperature extruded experience eight temperature provinces, respectively 90～95 DEG C, 90～95 DEG C, 95～100 DEG C,
100～110 DEG C, 115～120 DEG C, 120～125 DEG C, 125～130 DEG C and 130～135 DEG C, the thickness extruded
For 1.8mm, to form a low-smoke non-halogen flame-retardant oversheath.
Effect example 1
The insulating protective metal shell of mineral fire-resisting cable of the present invention is carried out speed of production, cable length, aluminium gold
Belong to the test of the tests such as sheath D.C. resistance, waterproof test and fire resistant flame retardant anticollision, and use existing product
Disclosed in product i.e. Chinese utility model patent CN2745194A, cable is as a control group, concrete test result
As shown in table 1.
Table 1
As can be seen from the above table, with matched group Chinese utility model patent CN2745194A disclosed in cable
Comparing, the insulating protective metal shell of mineral fire-resisting cable speed of production of the embodiment of the present invention 1 is slow, cable length
Long, significantly improve production efficiency, simultaneously because the insulating protective metal shell of mineral fire-resisting cable of embodiment 1
Disclosure satisfy that the conductor DC resistance of regulation in GB 3956, cable can reduce by a core, by original 5
Core becomes 4 cores, saves the material of a corresponding copper conductor of core, although add aluminum metal set, but aluminum
Proportion be 1/3rd of copper, operation has made root insulated wire cores less, has reduced manufacturing cost, more
Add beneficially industrialization, and the aluminum metal set of the insulating protective metal shell of mineral fire-resisting cable of embodiment 1 is furnished with
Special adapter, install more convenient reliably.Furthermore, the insulating protective metal shell of mineral of embodiment 1 is fire-resistant
Cable meets the conductor DC resistance of regulation in GB 3956, can be as ground connection core (PE line or PEN
Line) demand, and there is the waterproof and fire resistant flame retardant anticollision performance of excellence.Though the cable of matched group
So also having water-proof function, but it is owing to being limited by technique, aluminum metal sheath D.C. resistance cannot meet
Relevant regulations in GB 3956, it is impossible to use as ground connection core, although and it can pass through BS6387
Detection, but fire resistance is not highly stable, and is unable to reach 2 hours of BS8491 regulation
Fire-resistant bump test.Visible, the insulating protective metal shell of mineral fire-resisting cable of the embodiment of the present invention 1 relatively compares
Group has more excellent fire resistant flame retardant anticollision performance, and the fire resistant flame retardant anticollision effect of embodiment 2～3 is with real
Execute example 1 suitable.
Claims (10)
1. an insulating protective metal shell of mineral fire-resisting cable, it is characterised in that it includes being located at described ore deposit
Some insulated wire cores within thing insulated metal sheath fire-resistant cable, an aluminum metal sheath, an anticorrosion is moulded
The bed of material, a mineral oxygen barrier layer, one first flame-retardant layer, a fire-resistant expanding layer of mineral, a metal is strengthened
Layer, one second flame-retardant layer and the low smoke and zero halogen being located at described insulating protective metal shell of mineral fire-resisting cable outer layer
Fire-retardant oversheath；Described insulated wire cores is the metallic conductor that external sheath has a mineral insulation layer；Described
Aluminum metal sheath is coated on the outside of described some insulated wire cores, and the outer layer of described aluminum metal sheath is successively
It is coated with described anti-rot plastic layer, described mineral oxygen barrier layer, described first flame-retardant layer, described mineral resistance to
Fire expanding layer, described metal shielding, described second flame-retardant layer and described low-smoke non-halogen flame-retardant oversheath.
2. insulating protective metal shell of mineral fire-resisting cable as claimed in claim 1, it is characterised in that institute
The radical stating insulated wire cores is 1～5；
And/or, the sectional area of described metallic conductor is 1.5～630mm2；
And/or, the thickness of described mineral insulation layer is 0.4～1.8mm；
And/or, the thickness of described aluminum metal sheath is 1.2～1.8mm；
And/or, the thickness of described anti-rot plastic layer is 1.0mm；
And/or, described anti-rot plastic layer is profile of tooth anti-rot plastic layer, and the tooth height of described profile of tooth is 0.6mm；
And/or, the thickness of described mineral oxygen barrier layer is 1.0～2.0mm；
And/or, the thickness of described first flame-retardant layer is 1.2～1.8mm；
And/or, the thickness of the fire-resistant expanding layer of described mineral is 2.0～3.0mm；
And/or, the thickness of described metal shielding is 1.2～2.0mm；
And/or, described metal shielding is formed by metal wire knitted；
And/or, the thickness of described second flame-retardant layer is 1.2～1.8mm；
And/or, the thickness of described low-smoke non-halogen flame-retardant oversheath is 1.8～3.8mm.
3. insulating protective metal shell of mineral fire-resisting cable as claimed in claim 2, it is characterised in that institute
The radical stating insulated wire cores is 1～4；
And/or, the thickness of described aluminum metal sheath is 1.2～1.5mm；
And/or, described wiry a diameter of 0.6～1.0mm；
And/or, described tinsel is stainless steel silk and/or copper wire；
And/or, the thickness of described low-smoke non-halogen flame-retardant oversheath is 1.8～3.3mm.
4. insulating protective metal shell of mineral fire-resisting cable as claimed in claim 1, it is characterised in that institute
The material stating metallic conductor is copper；
And/or, the material of described mineral insulation layer is fireproof mica；
And/or, the material of described anti-rot plastic layer is polyethylene and/or crosslinked polyethylene；
And/or, the material of described mineral oxygen barrier layer is made up of perlite, magnesium hydroxide and graphite；
And/or, the material of described first flame-retardant layer is halogen-free low-smoke flame retardant material；
And/or, the material of the fire-resistant expanding layer of described mineral is by waterglass, perlite, magnesium hydroxide, hydrogen
Aluminium oxide and graphite composition；
And/or, the material of described second flame-retardant layer is fire resistant ceramic silicone rubber；
And/or, the polyolefin that material is low-smoke non-halogen flame-retardant of described low-smoke non-halogen flame-retardant oversheath or elasticity
Body material.
5. the manufacture of insulating protective metal shell of mineral fire-resisting cable as described in any one of Claims 1 to 4
Method, it is characterised in that it comprises the steps:
(1) by mineral insulation material around wrapping in outside metallic conductor, a mineral insulation layer is formed,
Prepare an insulated wire cores；
(2) some described insulated wire cores are twisted into cable core, then aluminum metal is extruded in continuously institute
State outside cable core, form an aluminum metal sheath；
(3) anti-rot plastic is extruded in outside described aluminum metal sheath, forms an anti-rot plastic layer；
(4) mineral oxygen barrier material is extruded in outside described anti-rot plastic layer, formed a mineral every
Oxygen layer；
(5) by fire proofing around wrapping in outside described mineral oxygen barrier layer, one first flame-retardant layer is formed；
(6) mineral refractory swelling material is extruded in outside described first flame-retardant layer, forms mineral
The fire-resistant expanding layer of matter；
(7) weave with tinsel outside the fire-resistant expanding layer of described mineral, form a metal and add
Strong layer；
(8) by fire proofing around wrapping in outside described metal shielding, one second flame-retardant layer is formed；
(9) halogen-free low-smoke flame retardant material is extruded in outside described second flame-retardant layer, formed a low cigarette without
The fire-retardant oversheath of halogen.
6. manufacture method as claimed in claim 5, it is characterised in that in step (1), described gold
Belong to conductor to be formed by conductor monofilament is stranded；
And/or, in step (1), the sectional area of described metallic conductor is 1.5～630mm2；
And/or, in step (1), described mineral insulation material is fireproof mica；
And/or, in step (2), described cable core is formed by 1～5 described insulated wire cores is stranded；
And/or, in step (2), described aluminum metal is extruded continuously before, described aluminum metal is through pre-place
Reason, described pretreatment is carried out as steps described below: first brush away the dust foul on aluminum metal surface with hairbrush,
Clean the greasy dirt removing aluminum metal surface the most again；
And/or, in step (2), described in extrude employing extruder carry out, on the die holder of described extruder
Equipped with feeding guide-plate and cavity, described cavity through preheating, described in preheat be 550～650 DEG C of process
4～5 hours；
And/or, in step (2), described in the temperature that extrudes be 480～530 DEG C；
And/or, in step (2), described in the thickness that extrudes be 1.2～1.8mm；
And/or, in step (3), described anti-rot plastic is polyethylene and/or crosslinked polyethylene；
And/or, in step (3), described in extrude employing 90 type extruders and carry out, described in the temperature that extrudes
Experience seven temperature provinces, respectively 170～175 DEG C, 175～180 DEG C, 180～185 DEG C, 185～190 DEG C,
190～195 DEG C, 190～195 DEG C and 195～200 DEG C.
7. manufacture method as claimed in claim 6, it is characterised in that in step (1), described gold
Belong to conductor to be formed by copper monofilament is stranded；
And/or, in step (1), described wrapped thickness is 0.4～1.8mm；
And/or, in step (2), described cable core is formed by 1～4 described insulated wire cores is stranded；
And/or, in step (2), described in preheat be 600 DEG C process 4～5 hours；
And/or, in step (2), described in the temperature that extrudes be 500 DEG C；
And/or, in step (2), described in the thickness that extrudes be 1.2～1.5mm；
And/or, in step (3), described in the thickness that extrudes be 1.0mm；
And/or, in step (3), described anti-rot plastic layer is profile of tooth anti-rot plastic layer, described profile of tooth
Tooth height is 0.6mm.
8. manufacture method as claimed in claim 5, it is characterised in that in step (4), described ore deposit
Material oxygen barrier material is made up of perlite, magnesium hydroxide and graphite；
And/or, in step (4), described in extrude employing cold-extruded mode；
And/or, in step (5), described fire proofing is halogen-free low-smoke flame retardant material；
And/or, in step (6), described mineral refractory swelling material is by waterglass, perlite, hydrogen
Magnesium oxide, aluminium hydroxide and graphite composition；
And/or, in step (6), described in extrude employing cold-extruded mode；
And/or, in step (7), described wiry a diameter of 0.6～1.0mm；
And/or, in step (8), described fire proofing is fire resistant ceramic silicone rubber；
And/or, in step (9), described halogen-free low-smoke flame retardant material is the polyolefin of low-smoke non-halogen flame-retardant
Or elastomeric material；
And/or, in step (9), described in extrude employing 120 type extruders and carry out, described in the temperature that extrudes
Degree experience eight temperature provinces, respectively 90～95 DEG C, 90～95 DEG C, 95～100 DEG C, 100～110 DEG C,
115～120 DEG C, 120～125 DEG C, 125～130 DEG C and 130～135 DEG C；
And/or, in step (9), described in the thickness that extrudes be 1.8～3.8mm.
9. manufacture method as claimed in claim 8, it is characterised in that in step (4), described crowded
The thickness of bag is 1.0～2.0mm；
And/or, in step (5), described wrapped thickness is 1.2～1.8mm；
And/or, in step (6), described in the thickness that extrudes be 2.0～3.0mm；
And/or, in step (7), described tinsel is stainless steel silk and/or copper wire；
And/or, in step (7), the thickness of described braiding is 1.2～2.0mm；
And/or, in step (8), described wrapped thickness is 1.2～1.8mm；
And/or, in step (9), described in the thickness that extrudes be 1.8～3.3mm.
10. one kind as described in any one of Claims 1 to 4 insulating protective metal shell of mineral fire-resisting cable at fire
Under the conditions of need the distribution of the complete performance requirement of holding circuit, illuminate, control and application in warning system.
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| CN201510253757.6A CN106297994A (en) | 2015-05-18 | 2015-05-18 | A kind of insulating protective metal shell of mineral fire-resisting cable and manufacture method thereof and application |
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| CN201510253757.6A CN106297994A (en) | 2015-05-18 | 2015-05-18 | A kind of insulating protective metal shell of mineral fire-resisting cable and manufacture method thereof and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644707A (en) * | 2017-11-15 | 2018-01-30 | 江苏凯达电缆有限公司 | A kind of mineral insulation fire resistant cable |
| CN115376729A (en) * | 2022-09-02 | 2022-11-22 | 青岛胶州湾电缆有限公司 | Flexible isolated form fireproof cable |
| CN117936178A (en) * | 2024-03-18 | 2024-04-26 | 广州南洋电缆集团有限公司 | Fire-retardant fire-resistant cable for monitoring line for fire control |
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| CN204143920U (en) * | 2014-09-29 | 2015-02-04 | 四川新蓉电缆有限责任公司 | A kind of aluminium sheath fireproof cable |
| CN204667939U (en) * | 2015-05-18 | 2015-09-23 | 上海市高桥电缆厂有限公司 | A kind of insulating protective metal shell of mineral fire-resisting cable |
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| CN204143920U (en) * | 2014-09-29 | 2015-02-04 | 四川新蓉电缆有限责任公司 | A kind of aluminium sheath fireproof cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107644707A (en) * | 2017-11-15 | 2018-01-30 | 江苏凯达电缆有限公司 | A kind of mineral insulation fire resistant cable |
| CN115376729A (en) * | 2022-09-02 | 2022-11-22 | 青岛胶州湾电缆有限公司 | Flexible isolated form fireproof cable |
| CN115376729B (en) * | 2022-09-02 | 2024-03-22 | 青岛胶州湾电缆有限公司 | Flexible isolation type fireproof cable |
| CN117936178A (en) * | 2024-03-18 | 2024-04-26 | 广州南洋电缆集团有限公司 | Fire-retardant fire-resistant cable for monitoring line for fire control |
| CN117936178B (en) * | 2024-03-18 | 2024-07-09 | 广州南洋电缆集团有限公司 | Fire-retardant fire-resistant cable for monitoring line for fire control |
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