CN107579497A - A kind of fireproof bus duct and its preparation technology - Google Patents

A kind of fireproof bus duct and its preparation technology Download PDF

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Publication number
CN107579497A
CN107579497A CN201711016183.6A CN201711016183A CN107579497A CN 107579497 A CN107579497 A CN 107579497A CN 201711016183 A CN201711016183 A CN 201711016183A CN 107579497 A CN107579497 A CN 107579497A
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China
Prior art keywords
layer
cloth
insulating barrier
bus duct
glass
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CN201711016183.6A
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Chinese (zh)
Inventor
姚军
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Zhenjiang Yi Bao Electrical Technology Co Ltd
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Zhenjiang Yi Bao Electrical Technology Co Ltd
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Priority to CN201711016183.6A priority Critical patent/CN107579497A/en
Publication of CN107579497A publication Critical patent/CN107579497A/en
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Abstract

The invention discloses a kind of fireproof bus duct, insulating barrier is used in the bus duct, the insulating barrier is arranged between adjacent conductive piece, insulating barrier is slideably positioned in the chute of bus duct by the slide of insulating barrier bottom, insulating barrier includes making material identical upper spacer and lower clapboard, slide is arranged in chute, slide is made up of base and slide bar, slide bar is arranged in the base being adapted with chute, slide bar is provided with external screw thread, external screw thread on slide bar is adapted with the internal thread in fixing hole, upper spacer and lower clapboard are arranged at the connection realized on slide with chute by fixing hole;The present invention also designs the preparation technology of a fireproof bus duct, should preparation is simple, it is cheap to prepare cost, the insulating barrier easy installation and removal prepared, more conducively repairs, saves time and cost.

Description

A kind of fireproof bus duct and its preparation technology
Technical field
The present invention relates to a kind of bus duct and its preparation technology, and in particular to a kind of fireproof bus duct and its preparation technology, Belong to the technical field of improvement of bus duct.
Background technology
Modern high-rise building and large-scale workshop need huge electric energy, and face hundreds and thousands of peaces needed for this huge load The powerful electric current of training will select safe and reliable transmission equipment, and bus-bar system is to select well, and bus duct system is one Kind efficiently power distribution equipment of conveying electric current, has especially adapted to higher and higher building and large-scale plant economical rationality distribution Need;Bus duct it using copper or aluminium as conductor, with non-alkene body insulating supporting, what is be then attached in metallic channel and formed new leads Body, nowadays into indispensable wiring mode in the electric equipments such as skyscraper, factory, power system;Due to building, work The needs of the various building electric power such as factory, and this needs increased trend year by year, using original circuit wiring pattern, that is, wear Pipe mode, many difficulties are brought during construction, moreover, when distribution system to be changed, can not when it is become simple some almost Can, then, if using bus duct, very easy can achieves the goal, also building can in addition become more It is attractive in appearance;For economic aspect, bus duct in itself compared with cable, price some, but with it is various attached comprising distribution Part and whole power system compare using bus duct can make construction cost just it is cheap more, particularly big feelings of current capacity It is in this case more obvious under condition.
The part of bus duct include insulating supporting, installing plate, installation frame, shell, door, cover plate, side plate, insulation every Plate, charging member, exposed conductive component, protection conductor, insulating barrier therein is to from the straight of porch all directions A kind of part protected with the electric arc from switching device and similar device is contacted, the insulating barrier used at present is resistance to The defects of warm poor performance, insulating properties are bad, intensity difference, and service life is short, cause the service life of bus duct to shorten, add into This, reduces operating efficiency, and therefore, researching and developing a kind of insulating barrier for bus duct that can overcome disadvantages described above turns into this area Technical staff's technical problem urgently to be resolved hurrily.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming prior art, there is provided a kind of fireproof bus duct and its Preparation technology, preparation is simple for this, and preparation cost is cheap, the insulating barrier easy installation and removal prepared, and is more conducive to Maintenance, save time and cost.
In order to solve the above technical problems, the present invention provides a kind of fireproof bus duct, insulating barrier is used in the bus duct, The insulating barrier is arranged between adjacent conductive piece, and insulating barrier is slideably positioned in bus duct by the slide of insulating barrier bottom Chute in, insulating barrier includes making material identical upper spacer and lower clapboard, wherein:
Upper spacer is identical with lower clapboard stratified material mainly to include main body binder layer and glass layer of cloth, and main body binder layer is setting up and down Encirclement forms hollow structure mainboard, and the upper and lower surface of main body binder layer is respectively equipped with glass layer of cloth, is placed on the upside of main body binder layer Glass layer of cloth be provided with inorganic layer, the glass layer of cloth being placed on the downside of main body binder layer is provided with nonwoven layer, is set on inorganic layer There is fireprotection layer, damp-proof layer is additionally provided with nonwoven layer, the both sides of glass layer of cloth, inorganic layer and nonwoven layer are in the thickness side of mainboard It is overlapping upwards;
In upper spacer fireprotection layer setting up and down and damp-proof layer in the horizontal direction to inside contract be arranged at by glass layer of cloth, inorganic layer and Square column is formed between the mainboard that nonwoven layer is surrounded;
Fireprotection layer setting up and down and damp-proof layer stretch out and by glass layer of cloth, inorganic layer and nothing in the horizontal direction in lower clapboard Square hole is formed between the mainboard that spinning layer of cloth surrounds;
Square column on upper spacer is adapted with the square hole on lower clapboard, and completes upper spacer with by the cooperation of square column and square hole The lower end of the docking of dividing plate, upper spacer and lower clapboard is respectively equipped with fixing hole, and internal thread is provided with fixing hole;
Slide is arranged in chute, and slide is made up of base and slide bar, and slide bar is arranged in the base being adapted with chute, slide bar It is provided with external screw thread, the external screw thread on slide bar is adapted with the internal thread in fixing hole, and upper spacer and lower clapboard pass through fixing hole It is arranged at the connection realized on slide with chute.
The technical scheme that further limits of the present invention is:
Further, foregoing fireproof bus duct, between mainboard, glass layer of cloth, inorganic layer, nonwoven layer, fireprotection layer and damp-proof layer Bonded by water-base epoxy dielectric adhesive, and mainboard, glass layer of cloth, inorganic layer, nonwoven layer, fireprotection layer and damp-proof layer it is folded Fire prevention glue-line is brushed respectively in the both sides of conjunction.
Foregoing fireproof bus duct, inorganic layer are made up of carbon fiber layer and reinforced plastic layer, carbon fiber layer be arranged at enhancing The both sides up and down of plastic layer.
Foregoing fireproof bus duct, glass layer of cloth are formed by stacking by two layers of glass-fiber-fabric, and upper strata glass-fiber-fabric is impregnated of high temperature resistant The glass-fiber-fabric of phenolic resin, lower floor's glass-fiber-fabric are the glass-fiber-fabric impregnated of the alcohol-soluble phenolic resin of addition fire retardant.
Foregoing fireproof bus duct, damp-proof layer are thermosetting resin waterproof paper, plastic sheeting or aluminum-plastic composite membrane.
Foregoing fireproof bus duct, nonwoven layer are made up of three-decker bonding, and the wherein second layer is fusion spray cloth, first layer and Third layer is retardant cotton.
Foregoing fireproof bus duct, the hollow space that main body binder layer surrounds mainboard are filled with sand.
The present invention also designs a kind of preparation technology of fireproof bus duct, specifically includes following steps:
(1)The preparation of water-base epoxy dielectric adhesive, is concretely comprised the following steps:
A. the synthesis of aqueous epoxy resins:By bisphenol A epoxide resin, propylene glycol monomethyl ether be put into agitator, reflux condenser, In the 500ml of constant pressure funnel and thermometer four-hole boiling flask, 80% polyethylene glycol and 25% acid anhydrides are then added, in N2Guarantor Under shield, 150-170 DEG C is heated to, 100-110 DEG C is cooled to after reaction 1-3h and all adds remaining polyethylene glycol and acid anhydrides, 140-160 DEG C of stirring 10-13min is warming up to, then adds nertralizer trialkylalcohol amine, 20-30min is stirred and adjusts pH value and be 7-8, deionized water is eventually adding, at 35-50 DEG C, stirring 30-50min discharges to obtain aqueous epoxy resins temperature control;
B. to step(a)In add sodium tripolyphosphate, polyvinyl acetate, poly- azelaic acid in the aqueous epoxy resins that are prepared Acid anhydride, water-soluble bisphenol A formaldehyde resin and compound rare-earth, are stirred at room temperature 20-50min, and trialkylalcohol amine is used after well mixed PH to 7.5-8.5 is adjusted, addition deionized water continues stirring 15-30min and obtains water-base epoxy dielectric adhesive, stand-by;
(2)The first one-step forming of insulating barrier
Glass layer of cloth is bonded in the upper and lower sides coating water-base epoxy dielectric adhesive of mainboard, and glass layer of cloth is in the width of mainboard Degree direction overlaps, then inorganic by one layer of water-base epoxy dielectric adhesive bonding on the glass layer of cloth being placed on the upside of mainboard Layer, nonwoven layer is bonded by water-base epoxy dielectric adhesive on the glass layer of cloth being placed on the downside of main body binder layer, inorganic Fireprotection layer is bonded by water-base epoxy dielectric adhesive on layer, is bonded and prevented by water-base epoxy dielectric adhesive in nonwoven layer Damp layer,
(3)Drying, trimming
By step(2)In obtain the insulating barrier of first one-step forming and dried at 50-80 DEG C, then cut off prominent when bonding Go out edge, keep the insulating barrier profile of just one-step forming perfect;
(4)Insulating barrier is hot-forming
By dry, trimming after first one-step forming insulating barrier deliver to heat pressing forming machines carry out it is hot-forming, concretely comprise the following steps:
A. heating exhaust, close cold press and apply 0.10-0.15MPa pressure, heated press reduces pressure to 60-75 DEG C To zero, press is opened in short-term and is deflated;
Under 0.10-0.15MPa pressure, heated press reduces pressure to zero, opens press in short-term and deflate to 100-108 DEG C;
B. hot-press solidifying, under 1-2MPa, press is warming up to 130-140 DEG C, 5-8min is maintained, then boosts to 15- 18MPa, and pressurize 1-2h so that fiberglass layer and main body binder layer are well-bonded;
C. keep the pressure in step b to carry out being cooled to 40-50 DEG C again, cool down 10-15min, then open press, and in master Fire prevention glue-line is brushed in plate, glass layer of cloth, inorganic layer, nonwoven layer, the both sides of the overlapping of fireprotection layer and damp-proof layer respectively, after drying It can obtain the fireproof bus duct insulating barrier of final molding;
(5)Hot-forming fireproof bus duct is checked one by one with insulating barrier, rejecting is defective, and qualified wrap Load storehouse.
The technical scheme that further limits of the present invention is:
Further, the preparation technology of foregoing fireproof bus duct, when preparing aqueous epoxy resins dielectric adhesive, water-base epoxy Each component content according to the mass fraction is in insulation resin adhesive:
Aqueous epoxy resins:70-80 parts, sodium tripolyphosphate:10-15 parts, polyvinyl acetate:8-11 parts, poly- azelaic acid acid anhydride:5- 7 parts, water-soluble bisphenol A formaldehyde resin:10-15 parts, compound rare-earth:0.1-0.3 parts, deionized water:5-7 parts, wherein:
Compound rare-earth includes following components by mass percentage:Y:13-15%, Sc:16-18%, Gd:9-11%, Sm:18-20%, Pr:9-11%, surplus La, above each component sum are 100%.
The beneficial effects of the invention are as follows:
It is additionally provided with nonwoven layer in the present invention, nonwoven layer is three-decker bonding composition, and the wherein second layer is fusion spray cloth, first Layer and third layer are retardant cotton, and this three layers bond by hot-rolling mill, finally wind to form nonwoven layer by up- coiler trimming;
The nonwoven layer is the combination of a kind of retardant cotton and fusion spray cloth, is that fiber is in fibre web the characteristics of Nonwovens of spunbond maximum Continuous filament yarn, compared with other non-woven cloth products with grammes per square metre, intensity is high, and vertically and horizontally performance approaches, but its networking uniformity and Surface coverage is poor;Meltblown nonwovens are formed for superfine fibre, and fibre diameter is thin, and cloth cover specific surface area is big, and porosity is small, Filtration resistance is small, and filter efficiency is high, and surface coverage agent shielding properties is fine, and its shortcoming is low intensity, and wearability is poor, First both is combined, the complex formed then compensate for mutual weakness just, and the non-woven fabrics prepared for being is equal There is the characteristics of intensity is high, and wearability is good, while there is excellent shielding properties again, with the intensity that dividing plate is also enhanced on dividing plate Wearability, meanwhile, non-woven fabrics is cheap, and its water-repellancy is splendid, has porous, good permeability, and easy holding surface Dry and comfortable, when in use due to its stable performance, nontoxic, free from extraneous odour, security is very high, due to the presence of non-woven fabrics, thus intensity It is high.
The non-woven fabrics is made using online combination process, and online combination process refers to that SMS is compound can be by same Spunbond and melt-blowing equipment on bar production line realize that is, so-called SMS by one-step method, on same production line, have simultaneously Individual spunbond die and individual meltblown beam, first by the-individual spunbond die sprays long filament and forms first layer fibre web i.e. spinning building, It is fusion spray cloth to form second layer fibre web above by meltblown beam again, and it is fine then to form third layer through second spunbond die Net is spinning building, and this three layers of fibre webs bond by hot-rolling mill, finally wind to form non-woven fabrics by up- coiler trimming;In the present invention The non-woven fabrics used is the combination of a kind of spunbond and melt-blown process, be the characteristics of Nonwovens of spunbond maximum in fibre web fiber to connect Continuous long filament, compared with other non-woven cloth products with grammes per square metre, intensity is high, and vertically and horizontally performance approaches, but its networking uniformity and table Face spreadability is poor;Meltblown nonwovens are formed for superfine fibre, and fibre diameter is thin, and cloth cover specific surface area is big, and porosity is small, mistake Filtration resistance power is small, and filter efficiency is high, and surface coverage agent shielding properties is fine, and its shortcoming is low intensity, and wearability is poor, first Both is combined, the complex formed then compensate for mutual weakness just so that the non-woven fabrics prepared has The characteristics of intensity is high, and wearability is good, while have excellent shielding properties again, intensity wearability, anti-flammability are more preferable.
The present invention is also provided with damp-proof layer, avoids the entrance of water when in use, phenomena such as being split up, extends the dividing plate Service life.
Glass layer of cloth of the present invention is double-layer structure, and upper glass layer of cloth is impregnated of the glass-fiber-fabric of thermostable phenolic resin, lower glass To add the glass-fiber-fabric of the alcohol-soluble phenolic resin of fire retardant, glass layer of cloth is arranged on the top of main body binder layer, carried fine layer of cloth The high heat-resisting quantity of dividing plate and good anti-flammability, extend the service life of dividing plate.
The both sides of glass layer of cloth, inorganic layer and nonwoven layer overlap on the thickness direction of mainboard, and mainboard, glass-fiber-fabric Fire prevention glue-line is brushed in layer, inorganic layer, nonwoven layer, the both sides of the overlapping of fireprotection layer and damp-proof layer respectively, has more consolidated each layer Between connection, space will not be produced between each layer, good airproof performance during use, service life extends.
The present invention is compound by the progress of mainboard, glass layer of cloth, inorganic layer, nonwoven layer, fireprotection layer and damp-proof layer, enhances absolutely The performances such as edge, wearability, the present invention in glass layer of cloth impregnate adhesive be aqueous epoxy resins dielectric adhesive, using water as Solvent, there are good permeability and cohesive force to base material, safe and non-toxic, after cured crosslinking, aqueous epoxy resins have mechanics Intensity is high, adheres to strong, the good chemical stability of cementitiousness and excellent electrical insulation properties, fully meets insulation industry Requirement.
The present invention uses polyethylene glycol, phthalic anhydride compound modification of epoxy resin, introduces carboxylic group, makes it have hydrophily, Polyethylene glycol improves epoxy resin pliability and hydrophily, and phthalic anhydride in its structure due to containing phenyl ring, it is possible to increase water-base epoxy The heat resistance and water resistance of resin.
The compound rare-earth of the present invention, because the metallic atomic radius of above rare earth element is big and rare earth has higher work Property, it is easy to the space of storeroom is filled up, the addition of compound rare-earth improves the dispersiveness and phase of adhesive to a certain extent Capacitive, product mix is set uniformly to also improve the anti-flammability of adhesive.
Using substep hot press forming technology, including heating exhaust phase, hot-press solidifying stage and pressurize cooling stage, solve Exhausting problem, the completion of whole set process effectively increase the performance for the insulating barrier prepared.
The present invention is simple in construction, and fire protecting performance is good, has high intensity, high-wearing feature, insulating properties, in service life, produces Easy to process, energy consumption is low, free from environmental pollution.
Brief description of the drawings
Fig. 1 is the structural representation of upper spacer in the embodiment of the present invention;
Fig. 2 is the structural representation of lower clapboard in the embodiment of the present invention;
In figure:1- main body binder layers, 2- glass layer of cloths, 3- inorganic layers, 4- nonwoven layers, 5- fireprotection layers, 6- damp-proof layers.
Embodiment
Embodiment 1
A kind of fireproof bus duct that the present embodiment provides, structure as shown in Figure 1-2, use insulating barrier, this is exhausted in the bus duct Edge dividing plate is arranged between adjacent conductive piece, and insulating barrier is slideably positioned in the cunning of bus duct by the slide of insulating barrier bottom In groove, insulating barrier includes making material identical upper spacer and lower clapboard, wherein:
Upper spacer is identical with lower clapboard stratified material mainly to include main body binder layer 1 and glass layer of cloth 2, and main body binder layer is about 1 Encirclement is set to form hollow structure mainboard, the upper and lower surface of main body binder layer 1 is respectively equipped with glass layer of cloth 2, is placed in main body base-material The glass layer of cloth 2 of the upside of layer 2 is provided with inorganic layer 3, and the glass layer of cloth 2 for being placed in the downside of main body binder layer 1 is provided with nonwoven layer 4, inorganic layer 3 is provided with fireprotection layer 5, and damp-proof layer 6, glass layer of cloth 2, inorganic layer 3 and nonwoven layer 4 are additionally provided with nonwoven layer 4 Both sides on the thickness direction of mainboard overlap;
Fireprotection layer setting up and down and damp-proof layer are arranged at by glass layer of cloth 2, inorganic layer 3 to inside contracting in the horizontal direction in upper spacer And form square column between the mainboard of the encirclement of nonwoven layer 4;
In lower clapboard fireprotection layer setting up and down and damp-proof layer stretch out in the horizontal direction with by glass layer of cloth 2, inorganic layer 3 and Square hole is formed between the mainboard that nonwoven layer 4 is surrounded;
Square column on upper spacer is adapted with the square hole on lower clapboard, and completes upper spacer with by the cooperation of square column and square hole The lower end of the docking of dividing plate, upper spacer and lower clapboard is respectively equipped with fixing hole, and internal thread is provided with fixing hole;
Slide is arranged in chute, and slide is made up of base and slide bar, and slide bar is arranged in the base being adapted with chute, slide bar It is provided with external screw thread, the external screw thread on slide bar is adapted with the internal thread in fixing hole, and upper spacer and lower clapboard pass through fixing hole It is arranged at the connection realized on slide with chute.
In the present embodiment:Lead between mainboard, glass layer of cloth 2, inorganic layer 3, nonwoven layer 4, fireprotection layer 5 and damp-proof layer 6 Cross water-base epoxy dielectric adhesive bonding, and mainboard, glass layer of cloth 2, inorganic layer 3, nonwoven layer 4, fireprotection layer 5 and damp-proof layer 6 The both sides of overlapping brush fire prevention glue-line respectively;Inorganic layer 3 is made up of carbon fiber layer and reinforced plastic layer, and carbon fiber layer is arranged at The both sides up and down of reinforced plastic layer;Glass layer of cloth 2 is formed by stacking by two layers of glass-fiber-fabric, and upper strata glass-fiber-fabric is impregnated of high temperature resistant phenol The glass-fiber-fabric of urea formaldehyde, lower floor's glass-fiber-fabric are the glass-fiber-fabric impregnated of the alcohol-soluble phenolic resin of addition fire retardant;Damp-proof layer 6 is Thermosetting resin waterproof paper, plastic sheeting or aluminum-plastic composite membrane;Nonwoven layer 4 is made up of three-decker bonding, wherein the second layer For fusion spray cloth, first layer and third layer are retardant cotton;The hollow space that main body binder layer surrounds is filled with foam or sand.
Embodiment 2
The present embodiment provides the preparation technology of fireproof bus duct in embodiment 1, and the preparation technology of wherein insulating barrier specifically includes Following steps:
(1)The preparation of water-base epoxy dielectric adhesive, is concretely comprised the following steps:
A. the synthesis of aqueous epoxy resins:By bisphenol A epoxide resin, propylene glycol monomethyl ether be put into agitator, reflux condenser, In the 500ml of constant pressure funnel and thermometer four-hole boiling flask, 80% polyethylene glycol and 25% acid anhydrides are then added, in N2Guarantor Under shield, 150 DEG C are heated to, 100 DEG C are cooled to after reaction 1h and all adds remaining polyethylene glycol and acid anhydrides, is warming up to 140 DEG C stirring 10min, then adds nertralizer trialkylalcohol amine, stirs 20min and adjust pH value as 7, be eventually adding deionized water, At 35 DEG C, stirring 30min discharges to obtain aqueous epoxy resins temperature control;
B. to step(a)In add sodium tripolyphosphate, polyvinyl acetate, poly- azelaic acid in the aqueous epoxy resins that are prepared Acid anhydride, water-soluble bisphenol A formaldehyde resin and compound rare-earth, are stirred at room temperature 20min, are adjusted after well mixed with trialkylalcohol amine PH to 7.5, addition deionized water continues stirring 15min and obtains water-base epoxy dielectric adhesive, stand-by;
(2)The first one-step forming of insulating barrier
Glass layer of cloth is bonded in the upper and lower sides coating water-base epoxy dielectric adhesive of mainboard, and glass layer of cloth is in the width of mainboard Degree direction overlaps, then inorganic by one layer of water-base epoxy dielectric adhesive bonding on the glass layer of cloth being placed on the upside of mainboard Layer, nonwoven layer is bonded by water-base epoxy dielectric adhesive on the glass layer of cloth being placed on the downside of main body binder layer, inorganic Fireprotection layer is bonded by water-base epoxy dielectric adhesive on layer, is bonded and prevented by water-base epoxy dielectric adhesive in nonwoven layer Damp layer,
(3)Drying, trimming
By step(2)In obtain the insulating barrier of first one-step forming and dried at 50 DEG C, then cut off the protrusion when bonding Edge, keep the insulating barrier profile of just one-step forming perfect;
(4)Insulating barrier is hot-forming
By dry, trimming after first one-step forming insulating barrier deliver to heat pressing forming machines carry out it is hot-forming, concretely comprise the following steps:
A. heating exhaust, close cold press and apply 0.10MPa pressure, heated press is to 60 DEG C, reduction pressure to zero, in short-term Press is opened to deflate;
Under 0.10MPa pressure, heated press reduces pressure to zero, opens press in short-term and deflate to 100 DEG C;
B. hot-press solidifying, under 1MPa, press is warming up to 130 DEG C, 5min is maintained, then boosts to 15MPa, and pressurize 1h, So that fiberglass layer and main body binder layer are well-bonded;
C. keep the pressure in step b to carry out being cooled to 40 DEG C again, cool down 10min, then open press, and in mainboard, glass Fire prevention glue-line is brushed in layer of cloth, inorganic layer, nonwoven layer, the both sides of the overlapping of fireprotection layer and damp-proof layer respectively, can be obtained after drying To the fireproof bus duct insulating barrier of final molding;
(5)Hot-forming fireproof bus duct is checked one by one with insulating barrier, rejecting is defective, and qualified wrap Load storehouse.
In the present embodiment, when preparing aqueous epoxy resins dielectric adhesive, in aqueous epoxy resins dielectric adhesive Each component content according to the mass fraction is:
Aqueous epoxy resins:70 parts, sodium tripolyphosphate:10 parts, polyvinyl acetate:8 parts, poly- azelaic acid acid anhydride:It is 5 parts, water-soluble Bisphenol A formaldehyde resin:10 parts, compound rare-earth:0.1 part, deionized water:5 parts, wherein:
Compound rare-earth includes following components by mass percentage:Y:13%, Sc:16%, Gd:9%, Sm:18%, Pr:9%, surplus is La, above each component sum are 100%.
Embodiment 3
The present embodiment provides the preparation technology of fireproof bus duct in embodiment 1, and the preparation technology of wherein insulating barrier specifically includes Following steps:
(1)The preparation of water-base epoxy dielectric adhesive, is concretely comprised the following steps:
A. the synthesis of aqueous epoxy resins:By bisphenol A epoxide resin, propylene glycol monomethyl ether be put into agitator, reflux condenser, In the 500ml of constant pressure funnel and thermometer four-hole boiling flask, 80% polyethylene glycol and 25% acid anhydrides are then added, in N2Guarantor Under shield, 170 DEG C are heated to, 110 DEG C are cooled to after reaction 3h and all adds remaining polyethylene glycol and acid anhydrides, is warming up to 160 DEG C stirring 13min, then adds nertralizer trialkylalcohol amine, stirs 20-30min and adjust pH value as 8, be eventually adding deionization Water, at 50 DEG C, stirring 50min discharges to obtain aqueous epoxy resins temperature control;
B. to step(a)In add sodium tripolyphosphate, polyvinyl acetate, poly- azelaic acid in the aqueous epoxy resins that are prepared Acid anhydride, water-soluble bisphenol A formaldehyde resin and compound rare-earth, are stirred at room temperature 50min, are adjusted after well mixed with trialkylalcohol amine PH to 8.5, addition deionized water continues stirring 30min and obtains water-base epoxy dielectric adhesive, stand-by;
(2)The first one-step forming of insulating barrier
Glass layer of cloth is bonded in the upper and lower sides coating water-base epoxy dielectric adhesive of mainboard, and glass layer of cloth is in the width of mainboard Degree direction overlaps, then inorganic by one layer of water-base epoxy dielectric adhesive bonding on the glass layer of cloth being placed on the upside of mainboard Layer, nonwoven layer is bonded by water-base epoxy dielectric adhesive on the glass layer of cloth being placed on the downside of main body binder layer, inorganic Fireprotection layer is bonded by water-base epoxy dielectric adhesive on layer, is bonded and prevented by water-base epoxy dielectric adhesive in nonwoven layer Damp layer,
(3)Drying, trimming
By step(2)In obtain the insulating barrier of first one-step forming and dried at 80 DEG C, then cut off the protrusion when bonding Edge, keep the insulating barrier profile of just one-step forming perfect;
(4)Insulating barrier is hot-forming
By dry, trimming after first one-step forming insulating barrier deliver to heat pressing forming machines carry out it is hot-forming, concretely comprise the following steps:
A. heating exhaust, close cold press and apply 0.15MPa pressure, heated press is to 75 DEG C, reduction pressure to zero, in short-term Press is opened to deflate;
Under 0.15MPa pressure, heated press reduces pressure to zero, opens press in short-term and deflate to 108 DEG C;
B. hot-press solidifying, under 2MPa, press is warming up to 140 DEG C, 8min is maintained, then boosts to 18MPa, and pressurize 2h, So that fiberglass layer and main body binder layer are well-bonded;
C. keep the pressure in step b to carry out being cooled to 50 DEG C again, cool down 15min, then open press, and in mainboard, glass Fire prevention glue-line is brushed in layer of cloth, inorganic layer, nonwoven layer, the both sides of the overlapping of fireprotection layer and damp-proof layer respectively, can be obtained after drying To the fireproof bus duct insulating barrier of final molding;
(5)Hot-forming fireproof bus duct is checked one by one with insulating barrier, rejecting is defective, and qualified wrap Load storehouse.
In the present embodiment, when preparing aqueous epoxy resins dielectric adhesive, in aqueous epoxy resins dielectric adhesive Each component content according to the mass fraction is:
Aqueous epoxy resins:80 parts, sodium tripolyphosphate:15 parts, polyvinyl acetate:11 parts, poly- azelaic acid acid anhydride:It is 7 parts, water-soluble Bisphenol A formaldehyde resin:15 parts, compound rare-earth:0.3 part, deionized water:7 parts, wherein:
Compound rare-earth includes following components by mass percentage:Y:15%, Sc:18%, Gd:11%, Sm:20%, Pr:11%, surplus For La, above each component sum is 100%.
Embodiment 4
The present embodiment provides the preparation technology of fireproof bus duct in embodiment 1, and the preparation technology of wherein insulating barrier specifically includes Following steps:
(1)The preparation of water-base epoxy dielectric adhesive, is concretely comprised the following steps:
A. the synthesis of aqueous epoxy resins:By bisphenol A epoxide resin, propylene glycol monomethyl ether be put into agitator, reflux condenser, In the 500ml of constant pressure funnel and thermometer four-hole boiling flask, 80% polyethylene glycol and 25% acid anhydrides are then added, in N2Guarantor Under shield, 160 DEG C are heated to, 105 DEG C are cooled to after reaction 2h and all adds remaining polyethylene glycol and acid anhydrides, is warming up to 150 DEG C stirring 12min, then adds nertralizer trialkylalcohol amine, stirs 25min and adjust pH value as 7, be eventually adding deionized water, At 40 DEG C, stirring 40min discharges to obtain aqueous epoxy resins temperature control;
B. to step(a)In add sodium tripolyphosphate, polyvinyl acetate, poly- azelaic acid in the aqueous epoxy resins that are prepared Acid anhydride, water-soluble bisphenol A formaldehyde resin and compound rare-earth, are stirred at room temperature 35min, are adjusted after well mixed with trialkylalcohol amine PH to 8, addition deionized water continues stirring 19min and obtains water-base epoxy dielectric adhesive, stand-by;
(2)The first one-step forming of insulating barrier
Glass layer of cloth is bonded in the upper and lower sides coating water-base epoxy dielectric adhesive of mainboard, and glass layer of cloth is in the width of mainboard Degree direction overlaps, then inorganic by one layer of water-base epoxy dielectric adhesive bonding on the glass layer of cloth being placed on the upside of mainboard Layer, nonwoven layer is bonded by water-base epoxy dielectric adhesive on the glass layer of cloth being placed on the downside of main body binder layer, inorganic Fireprotection layer is bonded by water-base epoxy dielectric adhesive on layer, is bonded and prevented by water-base epoxy dielectric adhesive in nonwoven layer Damp layer,
(3)Drying, trimming
By step(2)In obtain the insulating barrier of first one-step forming and dried at 70 DEG C, then cut off the protrusion when bonding Edge, keep the insulating barrier profile of just one-step forming perfect;
(4)Insulating barrier is hot-forming
By dry, trimming after first one-step forming insulating barrier deliver to heat pressing forming machines carry out it is hot-forming, concretely comprise the following steps:
A. heating exhaust, close cold press and apply 0.8MPa pressure, heated press is to 70 DEG C, reduction pressure to zero, in short-term Press is opened to deflate;
Under 0.13MPa pressure, heated press reduces pressure to zero, opens press in short-term and deflate to 105 DEG C;
B. hot-press solidifying, under 1MPa, press is warming up to 135 DEG C, 7min is maintained, then boosts to 16MPa, and pressurize 2h, So that fiberglass layer and main body binder layer are well-bonded;
C. keep the pressure in step b to carry out being cooled to 45 DEG C again, cool down 12min, then open press, and in mainboard, glass Fire prevention glue-line is brushed in layer of cloth, inorganic layer, nonwoven layer, the both sides of the overlapping of fireprotection layer and damp-proof layer respectively, can be obtained after drying To the fireproof bus duct insulating barrier of final molding;
(5)Hot-forming fireproof bus duct is checked one by one with insulating barrier, rejecting is defective, and qualified wrap Load storehouse.
In the present embodiment, when preparing aqueous epoxy resins dielectric adhesive, in aqueous epoxy resins dielectric adhesive Each component content according to the mass fraction is:
Aqueous epoxy resins:75 parts, sodium tripolyphosphate:12 parts, polyvinyl acetate:10 parts, poly- azelaic acid acid anhydride:It is 6 parts, water-soluble Bisphenol A formaldehyde resin:12 parts, compound rare-earth:0.2 part, deionized water:6 parts, wherein:
Compound rare-earth includes following components by mass percentage:Y:14%, Sc:17%, Gd:10%, Sm:19%, Pr:10%, surplus For La, above each component sum is 100%.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape Into technical scheme, all fall within the protection domains of application claims.

Claims (9)

  1. A kind of 1. fireproof bus duct, it is characterised in that:Insulating barrier is used in the bus duct, the insulating barrier is arranged at adjacent lead Between electric piece, insulating barrier is slideably positioned in the chute of bus duct by the slide of insulating barrier bottom, and insulating barrier includes Material identical upper spacer and lower clapboard are made, wherein:
    The upper spacer is identical with lower clapboard stratified material mainly to include main body binder layer(1)And glass layer of cloth(2), the main body Binder layer(1)Encirclement setting up and down forms hollow structure mainboard, the main body binder layer(1)Upper and lower surface be respectively equipped with glass Layer of cloth(2), it is described to be placed in main body binder layer(2)The glass layer of cloth of upside(2)It is provided with inorganic layer(3), it is described to be placed in main body base The bed of material(1)The glass layer of cloth of downside(2)It is provided with nonwoven layer(4), the inorganic layer(3)It is provided with fireprotection layer(5), the nothing Spin layer of cloth(4)On be additionally provided with damp-proof layer(6), the glass layer of cloth(2), inorganic layer(3)And nonwoven layer(4)Both sides described Overlapped on the thickness direction of mainboard;
    Fireprotection layer setting up and down and damp-proof layer are arranged at by the glass layer of cloth to inside contracting in the horizontal direction in upper spacer(2)、 Inorganic layer(3)And nonwoven layer(4)Square column is formed between the mainboard of encirclement;
    Fireprotection layer setting up and down and damp-proof layer stretch out and by the glass layer of cloth in the horizontal direction in lower clapboard(2), nothing Machine layer(3)And nonwoven layer(4)Square hole is formed between the mainboard of encirclement;
    Square column on the upper spacer is adapted with the square hole on lower clapboard, and completes upper spacer by the cooperation of square column and square hole With docking for lower clapboard, the lower end of the upper spacer and lower clapboard is respectively equipped with fixing hole, internal thread is provided with the fixing hole;
    The slide is arranged in chute, and the slide is made up of base and slide bar, and the slide bar is arranged at and the chute phase In the base of adaptation, the slide bar is provided with external screw thread, the external screw thread on the slide bar and the internal thread phase in the fixing hole Adaptation, the upper spacer and lower clapboard are arranged at the connection realized on slide with chute by the fixing hole.
  2. 2. fireproof bus duct according to claim 1, it is characterised in that:The mainboard, glass layer of cloth(2), inorganic layer (3), nonwoven layer(4), fireprotection layer(5)And damp-proof layer(6)Between bonded by water-base epoxy dielectric adhesive, and the master Plate, glass layer of cloth(2), inorganic layer(3), nonwoven layer(4), fireprotection layer(5)And damp-proof layer(6)The both sides of overlapping brush respectively Fire prevention glue-line.
  3. 3. fireproof bus duct according to claim 1, it is characterised in that:Described inorganic layer(3)By carbon fiber layer and increasing Strong plastic layer composition, described carbon fiber layer are arranged at the both sides up and down of the reinforced plastic layer.
  4. 4. fireproof bus duct according to claim 1, it is characterised in that:The glass layer of cloth(2)Folded by two layers of glass-fiber-fabric Conjunction forms, and upper strata glass-fiber-fabric is the glass-fiber-fabric impregnated of thermostable phenolic resin, and lower floor's glass-fiber-fabric is impregnated of addition fire retardant Alcohol-soluble phenolic resin glass-fiber-fabric.
  5. 5. fireproof bus duct according to claim 1, it is characterised in that:The damp-proof layer(6)For thermosetting resin waterproof Paper, plastic sheeting or aluminum-plastic composite membrane.
  6. 6. fireproof bus duct according to claim 1, it is characterised in that:Described nonwoven layer(4)Glued by three-decker It is combined into, wherein the second layer is fusion spray cloth, and first layer and third layer are retardant cotton.
  7. 7. fireproof bus duct according to claim 1, it is characterised in that:The main body binder layer surrounds the hollow bulb of mainboard Divide and be filled with sand.
  8. 8. the preparation technology of fireproof bus duct as claimed in claim 1, it is characterised in that the wherein preparation technology of insulating barrier Specifically include following steps:
    (1)The preparation of water-base epoxy dielectric adhesive, is concretely comprised the following steps:
    A. the synthesis of aqueous epoxy resins:By bisphenol A epoxide resin, propylene glycol monomethyl ether be put into agitator, reflux condenser, In the 500ml of constant pressure funnel and thermometer four-hole boiling flask, 80% polyethylene glycol and 25% acid anhydrides are then added, in N2Guarantor Under shield, 150-170 DEG C is heated to, 100-110 DEG C is cooled to after reaction 1-3h and all adds remaining polyethylene glycol and acid anhydrides, 140-160 DEG C of stirring 10-13min is warming up to, then adds nertralizer trialkylalcohol amine, 20-30min is stirred and adjusts pH value and be 7-8, deionized water is eventually adding, at 35-50 DEG C, stirring 30-50min discharges to obtain aqueous epoxy resins temperature control;
    B. to step(a)In add sodium tripolyphosphate, polyvinyl acetate, poly- azelaic acid in the aqueous epoxy resins that are prepared Acid anhydride, water-soluble bisphenol A formaldehyde resin and compound rare-earth, are stirred at room temperature 20-50min, and trialkylalcohol amine is used after well mixed PH to 7.5-8.5 is adjusted, addition deionized water continues stirring 15-30min and obtains water-base epoxy dielectric adhesive, stand-by;
    (2)The first one-step forming of insulating barrier
    Glass layer of cloth is bonded in the upper and lower sides coating water-base epoxy dielectric adhesive of mainboard, and glass layer of cloth is in the width of mainboard Degree direction overlaps, then inorganic by one layer of water-base epoxy dielectric adhesive bonding on the glass layer of cloth being placed on the upside of mainboard Layer, nonwoven layer is bonded by water-base epoxy dielectric adhesive on the glass layer of cloth being placed on the downside of main body binder layer, Fireprotection layer is bonded by water-base epoxy dielectric adhesive on inorganic layer, glued in nonwoven layer by water-base epoxy dielectric adhesive Tie damp-proof layer,
    (3)Drying, trimming
    By step(2)In obtain the insulating barrier of first one-step forming and dried at 50-80 DEG C, then cut off prominent when bonding Go out edge, keep the insulating barrier profile of just one-step forming perfect;
    (4)Insulating barrier is hot-forming
    By dry, trimming after first one-step forming insulating barrier deliver to heat pressing forming machines carry out it is hot-forming, concretely comprise the following steps:
    A. heating exhaust, close cold press and apply 0.10-0.15MPa pressure, heated press reduces pressure to 60-75 DEG C To zero, press is opened in short-term and is deflated;
    Under 0.10-0.15MPa pressure, heated press reduces pressure to zero, opens press in short-term and deflate to 100-108 DEG C;
    B. hot-press solidifying, under 1-2MPa, press is warming up to 130-140 DEG C, 5-8min is maintained, then boosts to 15- 18MPa, and pressurize 1-2h so that fiberglass layer and main body binder layer are well-bonded;
    C. keep the pressure in step b to carry out being cooled to 40-50 DEG C again, cool down 10-15min, then open press, and in master Fire prevention glue-line is brushed in plate, glass layer of cloth, inorganic layer, nonwoven layer, the both sides of the overlapping of fireprotection layer and damp-proof layer respectively, after drying It can obtain the fireproof bus duct insulating barrier of final molding;
    (5)Hot-forming fireproof bus duct is checked one by one with insulating barrier, rejecting is defective, and qualified wrap Load storehouse.
  9. 9. the preparation technology of fireproof bus duct according to claim 8, it is characterised in that:It is exhausted preparing aqueous epoxy resins During edge adhesive, each component content according to the mass fraction is in the aqueous epoxy resins dielectric adhesive:
    Aqueous epoxy resins:70-80 parts, sodium tripolyphosphate:10-15 parts, polyvinyl acetate:8-11 parts, poly- azelaic acid acid anhydride:5- 7 parts, water-soluble bisphenol A formaldehyde resin:10-15 parts, compound rare-earth:0.1-0.3 parts, deionized water:5-7 parts, wherein:
    The compound rare-earth includes following components by mass percentage:Y:13-15%, Sc:16-18%, Gd:9-11%, Sm:18- 20%, Pr:9-11%, surplus La, above each component sum are 100%.
CN201711016183.6A 2017-10-25 2017-10-25 A kind of fireproof bus duct and its preparation technology Pending CN107579497A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN108462130A (en) * 2018-04-08 2018-08-28 江苏银庆电气有限公司 Fireproof bus duct and preparation method thereof
CN109135172A (en) * 2018-09-07 2019-01-04 镇江朝阳机电科技有限公司 A kind of fire resisting wire casing
CN109193512A (en) * 2018-10-11 2019-01-11 柳州铁道职业技术学院 A kind of railway signaling control cable point is to box

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CN204012557U (en) * 2014-08-02 2014-12-10 温州金象电器设备有限公司 Bus duct insulating support
JP2015033172A (en) * 2013-07-31 2015-02-16 明星工業株式会社 Device and method for fire resistant cable insulation
CN104836177A (en) * 2015-05-29 2015-08-12 金海新源电气江苏有限公司 Insulating separator plate for bus duct and preparation method of insulating separator plate
CN205489371U (en) * 2016-04-07 2016-08-17 温州华博新材料科技有限公司 Novel bus duct
CN207320770U (en) * 2017-10-25 2018-05-04 镇江市益宝电气科技有限公司 A kind of fireproof bus duct

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Publication number Priority date Publication date Assignee Title
JP2015033172A (en) * 2013-07-31 2015-02-16 明星工業株式会社 Device and method for fire resistant cable insulation
CN204012557U (en) * 2014-08-02 2014-12-10 温州金象电器设备有限公司 Bus duct insulating support
CN104836177A (en) * 2015-05-29 2015-08-12 金海新源电气江苏有限公司 Insulating separator plate for bus duct and preparation method of insulating separator plate
CN205489371U (en) * 2016-04-07 2016-08-17 温州华博新材料科技有限公司 Novel bus duct
CN207320770U (en) * 2017-10-25 2018-05-04 镇江市益宝电气科技有限公司 A kind of fireproof bus duct

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108462130A (en) * 2018-04-08 2018-08-28 江苏银庆电气有限公司 Fireproof bus duct and preparation method thereof
CN109135172A (en) * 2018-09-07 2019-01-04 镇江朝阳机电科技有限公司 A kind of fire resisting wire casing
CN109193512A (en) * 2018-10-11 2019-01-11 柳州铁道职业技术学院 A kind of railway signaling control cable point is to box

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