CN208399766U - A kind of Novel anti-mouse flame-proof cable - Google Patents

Abstract

A kind of Novel anti-mouse flame-proof cable, including external polyolefin sheath (1), high silicon mica tape (2) is set in polyolefin sheath (1), is set armouring wire (3) in high silicon mica tape (2), and the armouring wire (3) is stranded on internal polyolefin sheath (1)；One layer high silicon mica tape (2) is set again in the polyolefin sheath (1) of the inside, sets metalloid core reinforcer (5), light unit and gasket for packing (7) in this high silicon mica tape (2)；The light unit and gasket for packing (7) are stranded on non-metal reinforcement member (5), therebetween handicapping combustible material (6) in gap.A kind of preparation method of Novel anti-mouse flame-proof cable, the preparation including beam tube light unit, the preparation of gasket for packing, cable core preparation, cable core extrude polyolefin sheath outside, are twisted armouring wire, extrude external polyolefin outer jacket.The optical cable of the utility model can still provide for reliable and stable transmission after the test of 950 DEG C of ± 50 DEG C of burnings 90 minutes.

Description

A kind of Novel anti-mouse flame-proof cable

Technical field

The utility model relates to a kind of Novel anti-mouse flame-proof cables.

Background technique

With rapid development of economy, various workshops, high building, tunnel, coal mine and other build above and below the ground it is also more next More intensive, scale is also bigger, and control and communication system traffic also increase rapidly, and optical cable, the demand of cable are also more, but simultaneously Also increase the risk of fire.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of Novel anti-mouse flame-proof cable, gather including external Alkene sheath sets high silicon mica tape in polyolefin sheath, and armouring wire is set in high silicon mica tape, in the armouring wire is stranded in On the polyolefin sheath in portion；One layer high silicon mica tape is set in the polyolefin sheath of the inside again；It is set in this high silicon mica tape Metalloid core reinforcer, light unit and gasket for packing, and handicapping combustible material in gap therebetween；The light unit and gasket for packing are twisted On metalloid core reinforcer, the non-metal reinforcement member is fibre reinforced composites FRP.The light unit include with it is upper Same high silicon mica tape is stated, beam tube is set in the high silicon mica tape of this layer, the optical fiber for having smeared ointment is set in beam tube, it is described Optical fiber is UV curing optical fiber.

Further, high silicon mica tape is two-sided synthetic mica tape.

Further, the material of beam tube is polybutylene terephthalate PBT.

Further, the packing material that blocks water is low smoke and zero halogen material.

Further, armouring wire is zinc-coated wire.

Further, the material of polyolefin sheath be can porcelain low-smoke halogen-free polyolefin.

Further, the material of gasket for packing 12 is polypropylene.

Optical fiber is responsible for the transfer function of Large Volume Data information in the utility model.The high silicon mica tape of multilayer be obviously improved every Hot property.Armouring wire undertakes cable machinery performance and protection against rodents and other toys nibble function.Can porcelain low smoke and zero halogen it is poly- Alkene effect is that burning is smokeless when a fire, does not discharge halogen acid gas, while being burnt switch to ceramics after a period of time To fire prevention, fire-retardant effect, so that cable inner fiber transmission performance is unaffected.The utility model is in the high silicon mica of beam tube outer cladding Band is heated to reduce optical fiber, can preferably carry out signal transmission in case of fire.The utility model optical cable is passing through After the test of 950 DEG C of ± 50 DEG C of burnings 90 minutes, reliable and stable transmission number can still provide for.This cable can be provided simultaneously with communication, Excellent fire resisting fire protecting performance and mechanical performance, very high flame resistance and very strong protection against rodents and other toys nibble characteristic.

Detailed description of the invention

Fig. 1 is the utility model structure chart.

Fig. 2 is the utility model optical fiber coloring flow chart.

Fig. 3 is the utility model secondary coating flow chart.

Fig. 4 is the utility model beam tube light unit production flow diagram.

Fig. 5 is the utility model gasket for packing preparation flow figure.

Fig. 6 is the utility model cable core preparation flow figure.

In figure, 1. polyolefin sheaths, 2. high silicon mica tapes, 3. armouring wires, 4. optical fiber, 5. metalloid core reinforcers, 6. fire proofing, 7. gasket for packings, 8. beam tubes, 9. ointment.

Specific embodiment

As shown in Figure 1, a kind of Novel anti-mouse flame-proof cable, has more colored optical fibers 4, optical fiber 4 for several inside beam tube 8 On be coated with ointment 9, and the external light unit for being coated with high silicon mica tape 2 and gasket for packing 7 are in a manner of a constant pitch " S " or " SZ " It is stranded on metalloid core reinforcer 5, fills fire proofing 6 in gap therebetween, and coat one layer high silicon mica tape 2 again outside Cable core is formed, extrudes internal polyolefin sheath 1 outside cable core, then armouring wire 3 is stranded in outer formation armored protective layer, and One layer high silicon mica tape 2 is coated outside armored protective layer again, finally extrudes external polyolefin sheath 1.

The high silicon mica tape 2 is two-sided synthetic mica tape.High silicon mica tape improves heat insulation, two-sided synthetic mica Band makees two-sided supporting material using synthesizing high-silicon mica paper as substrate, with glass-fiber-fabric, is bonded with silicon resin adhesive, is manufacture fire resisting The optimal preferred material of type wire and cable, refractory heat-insulating performance are best.

The material of the beam tube 8 is polybutylene terephthalate PBT.Advantage is high mechanical strength, fatigue durability and ruler Well, creep is small for very little stabilization, these performances also seldom change under the high temperature conditions.Energy consumed by PBT is produced in engineering plastic It is minimum in material, in the case that this is for energy shortages in world wide, have a very important significance.It is heat-resisting, resistance to ag(e)ing is excellent Different, enhanced Undterwriter's Laboratory temperature index reaches 120 ~ 140 DEG C, and solvent resistant is good, unstressed cracking.PBT is easy to fire-retardant, up to UL94V- 0 grade.Excellent electrical properties, volume resistivity and dielectric strength are high, and arc resistance is excellent, and hygroscopicity is minimum, in moist and high temperature Under environment, it is also able to maintain electric performance stablity.Easily molded processing and secondary operation can use conventional equipment injection molding or extrusion molding.Due to knot Brilliant speed is fast, and good fluidity, mold temperature is also lower than Other Engineering material requirements, only needs when processing thin wall parts several seconds, 40-60s is also only needed to big component.High production efficiency, and effectively environmental protection.

The optical fiber is UV curing optical fiber.

The metalloid core reinforcer 5 is fibre reinforced composites FRP.

The fire proofing is low smoke and zero halogen material, effectively blocks water, is fire-retardant.

The armouring wire 3 is zinc-coated wire.

The material of the polyolefin sheath be can porcelain low-smoke halogen-free polyolefin, under fire can porcelain, enhance it is heat-insulated resistance to Fire action.

The material of the gasket for packing 12 is polypropylene, and impact resistance with higher, engineering properties is tough, resists a variety of organic Solvent and acid and alkali corrosion.Gasket for packing is equipped with according to required number of fibers.

A kind of Novel anti-mouse flame-proof cable the preparation method is as follows:

(1) preparation of beam tube light unit

Optical fiber coloring, as shown in Fig. 2, the ink for applying different colours outside optical fiber is passed through ultraviolet light by optical fiber coloring machine Solidification is not so that color migrates, is colour-fast, 3-5 μm of coloring layer thickness.By 48 Fiber Identification difference chromatographies and colour code.After coloring Fibre external diameters be 255 μm, speed of production 1200m/min.

Secondary coating technique prepares beam tube.

As shown in figure 3, more coloured other optical fiber are carried out unwrapping wire first with optical fiber pay-off rack, being driven using ointment will Optical fiber is squeezed into the beam tube formed by the PBT plastic that extruding machine squeezes out, crystallizes PBT using cold and hot water temperature difference.Slightly PBT Loose tube is set to form more stable crystalline forming at 40 DEG C of glass transition temperature higher than PBT, into 20 DEG C of low-temperature cooling water Slot, cooling procedure shrink beam tube, due to the linear expansion coefficient very little of optical fiber, shrink very little, thus make optical fiber relative to Beam tube forms just remaining length, and this remaining long formation is known as length more than the temperature difference, the water temperature difference of hot water or cold water is adjusted in production process It can obtain corresponding remaining long, the relatively simple convenience of the method technology controlling and process and remaining long stablize.Optical cable is not easy after stranding Phenomenon is now lost.And allowing in construction can be to avoid optic fibre force under pulling force, it is not easy to the quality problems being lost occurs.

Satisfactory beam tube is finally obtained, is produced easy to control.Beam tube outer diameter 2.3mm.Speed of production 300m/min.Oil Cream drives and protection optical fiber, fills beam tube, to prevent beam tube infiltration.

As shown in figure 4, beam tube is pricked beam by the high silicon mica tape longitudinal wrap (or wrapped) of unwrapping wire and 0.1mm thickness, beam is formed Pipe light unit.Light unit outer diameter 2.5mm.Speed of production 150m/min.

(2) preparation of gasket for packing

As shown in figure 5, gasket for packing extrudes: using polypropylene extruder by polypropylene be extruded into outside beam tube light unit The equal gasket for packing of diameter.Through punishment in advance sucking, extrusion, sink, drying, line footpath detection, take-up, the preparation of gasket for packing is completed.Poly- third Alkene need to be packed into the extruder with drying function, and drying setting temperature is 70 DEG C, and the temperature curve in each area of screw rod is 125 DEG C, 130 ℃,140℃,145℃,150℃.Gasket for packing outer diameter 2.5mm.Speed of production 200m/min.The gasket for packing being prepared have compared with High impact resistance, engineering properties is tough, resists a variety of organic solvents and acid and alkali corrosion.And gasket for packing is presumable fills out herein Rope is filled, can be equipped with according to required number of fibers.Such as: when fiber count is 12,1 beam tube is needed to add 4 gasket for packings； When fiber count is 24,2 beam tubes is needed to add 3 gasket for packings；When fiber count is 36,3 beam tubes is needed to add 2 gasket for packings； When fiber count is 48,4 beam tubes is needed to add 1 gasket for packing；When fiber count is 60,5 beam tubes is needed to add 0 gasket for packing, It can freely arrange in pairs or groups as needed.

(3) preparation of cable core

As shown in fig. 6, the part centered on metalloid core reinforcer FRP, by gasket for packing, beam tube light unit according to certain Pitch S or SZ mode is twisted, and fills halogen-free low-smoke flame retardant material in gap therebetween, while being formed in the high silicon mica tape of outer cladding Cable core, speed of production 45m/min.The filling that can be carried out material water-proof material well using the speed production of 45m/min, is reduced and is occurred The case where infiltration.S or SZ mode is twisted to keep twisted cellular construction more stable, and high production efficiency, speed of production are fast, make optical fiber Be twisted it is deformed may be decreased minimum, and compensated.

(4) extrude outside cable core can porcelain low-smoke halogen-free polyolefin sheath, by unwrapping wire, can porcelain low-smoke halogen-free polyolefin squeeze Out, hot water storgae, warm water tank, cold rinse bank, drying, traction, metering, take-up process complete production.It can porcelain low-smoke halogen-free polyolefin It need to be packed into the extruder with drying function, drying setting temperature is 90 DEG C, and the temperature in each area of screw rod is 130 DEG C, 140 DEG C, 145 ℃,150℃,155℃,160℃,170℃.Using squeezing type matching mold mode.Wall thickness 1.0mm, the polyolefin sheath outside the cable core Outer diameter 9.2mm.Speed of production 40m/min.Polyolefin sheath meeting porcelain under fire, plays insulating refractory.

(5) it is twisted armouring wire outside the polyolefin outer jacket of step (4) using cage winch, is twisted 12 times of lay ratio.Armour Laying up diameter 12.0mm after dress.Speed of production 30m/min.

(6) extrude it is external can porcelain low-smoke halogen-free polyolefin outer jacket, while carrying out high silicon mica tape outside armouring wire Unwrapping wire, by semi-finished product unwrapping wire, mica tape unwrapping wire, can porcelain low-smoke halogen-free polyolefin extrusion, hot water storgae, warm water tank, cold rinse bank, Drying, traction, metering, take-up process complete production.Can porcelain low-smoke halogen-free polyolefin need to be packed into the extrusion with drying function Machine, drying setting temperature is 90 DEG C, and the temperature in each area of screw rod is 130 DEG C, 145 DEG C, 150 DEG C, 155 DEG C, 160 DEG C, 165 DEG C, 170 ℃.Using squeezing type matching mold mode.The wall thickness 2.0mm of outermost polyolefin outer jacket, outer diameter 16.0mm.Speed of production 40m/ min。

The outer jacket wall thickness meets YD/T 901-2009 standard.Speed of production 40m/min is the maximum economic rate of production (MERP), mistake It will lead to disconnection fastly, cause disconnected cable.

Claims (7)

1. a kind of Novel anti-mouse flame-proof cable, it is characterised in that: including external polyolefin sheath (1), polyolefin sheath (1) is interior If high silicon mica tape (2), set armouring wire (3) in high silicon mica tape (2), the armouring wire (3) is stranded in internal polyene On hydrocarbon sheath (1)；One layer high silicon mica tape (2) is set again in the polyolefin sheath (1) of the inside；In this high silicon mica tape (2) Metalloid core reinforcer (5), light unit and gasket for packing (7) are inside set, and handicapping combustible material (6) in gap therebetween；The light list Member and gasket for packing (7) are stranded on metalloid core reinforcer (5), and the non-metal reinforcement member is fibre reinforced composites FRP；The light unit includes high silicon mica tape (2) similar to the above, sets beam tube in the high silicon mica tape (2) of this layer (8), the optical fiber (4) for having smeared ointment (9) is set in beam tube (8), the optical fiber (4) is UV curing optical fiber.

2. a kind of Novel anti-mouse flame-proof cable according to claim 1, it is characterised in that: the high silicon mica tape is two-sided Synthetic mica tape.

3. a kind of Novel anti-mouse flame-proof cable according to claim 1, it is characterised in that: the material of the beam tube is polyphenyl Dioctyl phthalate butanediol ester PBT.

4. a kind of Novel anti-mouse flame-proof cable according to claim 1, it is characterised in that: the fire proofing (6) is low Cigarette halogen-free material.

5. a kind of Novel anti-mouse flame-proof cable according to claim 1, it is characterised in that: the armouring wire is galvanized steel Silk.

6. a kind of Novel anti-mouse flame-proof cable according to claim 1, it is characterised in that: the material of the polyolefin sheath For can porcelain low-smoke halogen-free polyolefin.

7. a kind of Novel anti-mouse flame-proof cable according to claim 1, it is characterised in that: the material of the gasket for packing (7) For polypropylene.