CN101943295B - Fiber reinforcement thermosetting cable bearer and production method thereof - Google Patents
Fiber reinforcement thermosetting cable bearer and production method thereof Download PDFInfo
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- CN101943295B CN101943295B CN2010102781197A CN201010278119A CN101943295B CN 101943295 B CN101943295 B CN 101943295B CN 2010102781197 A CN2010102781197 A CN 2010102781197A CN 201010278119 A CN201010278119 A CN 201010278119A CN 101943295 B CN101943295 B CN 101943295B
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- fiber reinforcement
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 35
- 239000000835 fiber Substances 0.000 title claims abstract description 24
- 229920001187 thermosetting polymer Polymers 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 10
- 239000011152 fibreglass Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 33
- 150000001875 compounds Chemical class 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 4
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
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- 239000004593 Epoxy Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to the technical field of a high-strength glass reinforced plastic cable bearer for fixing cables, in particular to a cable bearer made of fiber reinforcement thermosetting composite materials and a production method thereof. The cable bearer comprises a bearer main body which is in a columnar structure. The cable bearer is characterized in that a cavity structure is arranged in the bearer main body, a left choke plug and a right choke plug are respectively embedded in and connected to the left end wall and the right end wall of the cavity of the bearer main body, the top of the right choke plug is a bit higher than the bearer main body, and the fiber reinforcement thermosetting composite materials are prepared from unsaturated polyester resin, alkali-free glass fiber pultrusion yarns and glass fiber knitted felts which are combined together by a pultrusion process. The invention is applicable to subways, tunnels, mines and the like, and has the advantages of corrosion resistance, high strength, no creepage, fire prevention, electrical insulation and the like.
Description
[technical field]
The invention relates to the technical field of the high strength glass fibre reinforced cable bearer that relevant attached cable uses, and comprises new material, specifically a kind of cable bearer of fiber reinforcement same with thermosetting compound material and production method.
[background technology]
Along with Chinese economic development, the requirement of urban beautification and power supply safety is also improved day by day, so cable tunnel and cable duct become the urban electricity supply main thoroughfare.In the cable tunnel of occasions such as subway, tunnel, mine and tunnel and cable duct, during cable laying, need cable bearer to be used to set up cable.For a long time; Set up cable and all adopt metal material system support; Like carbon steel, angle bar etc.; The traditional metal materials support since big, the operation of its production process energy consumption is many and actual the use in adverse circumstances such as moist, dirty long-pending thing, coastal salt fog shortcoming such as metallic conductivity, easy-to-rust, life-span weak point, facility maintenance cost height and be eliminated gradually, the substitute is various New Type Material cable beareves.Now common on the market have glass fiber reinforced plastic cable support, resin cable bearer, a ceramic cable bearer etc.
Now, the fiberglass material adopts following 4 kinds basically, and phenolic resin frp, epoxy glass laminate, furans duplicate fiberglass and mylar fiberglass.Wherein, The phenolic resin frp acid resistance is strong, heatproof is higher but difficult forming; The epoxy glass laminate mechanical strength is high, shrinkage factor is little but heatproof is not high enough; Furans fiber glass resin acid-fast alkali-proof property is good, heatproof is high but processing performance is poor, mylar frp process function admirable but corrosion resistance is poor, shrinkage factor is big.
Chinese patent 200820210201.4 discloses a kind of high-strength cable support, and its rack body outboard end is made as barb shape, and barb becomes closed state with rack body.This structural design is unreasonable, and timbering material mainly adopts polyester material to constitute, and corrosion resistance is poor, receives easy deformation behind the water.
[summary of the invention]
The object of the invention is technological according to formerly, and a kind of high-strength cable support of novel structure is provided, and the distolateral wall in the left and right sides of rack body is provided with embedded left and right sides chock plug; Easy to install, described high-strength cable support is made up of the fiber reinforcement same with thermosetting compound material, and intensity is high; Corrosion-resistant, described support adopts the fiberglass pultrude process to realize, the continuous traction through draw-gear makes alkali-free glass fibre pultrusion yarn and glass fibre needled mat on the creel flood through glue; Behind heating mould with constant cross-section shape; Unnecessary resin and bubble are got rid of, gel, curing, moulding in mould, and realize the automatic production process of continuous depanning.
For realizing above-mentioned purpose, design a kind of cable bearer of fiber reinforcement same with thermosetting compound material, comprise that rack body (1) is the column type structure of fiberglass; It is characterized in that being provided with cavity structure in the described rack body, for smooth structure or be provided with some convex line reinforcing rib structures, rack body cavity left part sidewall embeds and connects left chock plug (2) on the inwall in the cavity; Embed the right chock plug of connection one inverted L shape on the sidewall of rack body cavity right part, right chock plug top is a little more than rack body, and the bottom of right chock plug is parallel with rack body; The two sides, front and back of right chock plug is identical with the front-back of rack body, the smooth connection of a-b section outside the rack body, and the cable bearer material of described fiber reinforcement same with thermosetting compound material is combined by unsaturated polyester resin and alkali-free glass fibre pultrusion yarn and glass fibre needled mat pultrusion; Described rack body wall thickness 2.90～3.19mm; Buckling strength 215MPa, hardness Barcol 49, bending load heat distortion temperature＞130 ℃; Oxygen index (OI) >=70%; Insulaion resistance＞1000G Ω, sheet resistance＜10G Ω, environment preference temperature-20 ℃～+ 70 ℃.Described unsaturated polyester resin is following according to the percentage by weight proportioning: unsaturated polyester resin 77%, tree fourth fat 0.6%, the third zincification 1.6%, curing agent methyl ethyl ketone peroxide 1.9%, mill base 2.3%, releasing agent 1.6%, calcium carbonate 15%.It is square or circular that described cavity structure is shaped as rectangle, and the inwall in the cavity is provided with corresponding two the convex line reinforcements in the left and right sides of unloading goods.Described rack body left part sidewall is provided with left chock plug, and left chock plug is a convex structure, on the outer wall on convex top, is provided with and the corresponding groove of cavity inner wall convex line reinforcement.The right part sidewall is provided with right chock plug, and the hollow that superposes on the horizontal L type that is shaped as of right chock plug constitutes, and on the outer wall of hollow, is provided with and the corresponding groove of cavity inner wall convex line reinforcement.The shape of described right chock plug adopts the chock plug of convex shape structure.The shape of described right chock plug adopts the chock plug of epsilon-type structure.Alkali-free glass fibre pultrusion yarn replaces with medium-alkali glass fibre pultrusion yarn.
The production method of the cable bearer of described fiber reinforcement same with thermosetting compound material is characterized in that this method has comprised following production stage:
(1), preparation
A, according to the product design demand, select the mould of corresponding type, and mold cleaning is clean, require mould inner surface not have dust, foreign material and other attachments;
B, preparation alkali-free glass fibre pultrusion yarn;
C, preparation glass fibre needled mat;
D, preparation heating plate.
(2), send yarn
A, mould is placed to the extruding equipment assigned position, and fixes;
B, alkali-free glass fibre pultrusion yarn is passed from mould preformed hole;
C, alkali-free glass fibre pultrusion yarn is passed from the mould vestibule, and reach predetermined radical by the design technology requirement, described predetermined radical is generally between 30 to 60;
D, ready glass fibre needled mat is ready to by the precalculated position.
(3), batching
According to the design technology requirement, the batching point is guarded in strictness, joins slurry according to the prescription of above-mentioned unsaturated polyester resin.
(4), mould and die preheating
According to the sized of mould, select corresponding heating plate, and fix around being attached to mould; By the design temperature subregion, adjust the temperature of each heating region, before being divided in back three warm areas; Temperature is followed successively by the proparea between 120～140 ℃, and middle district is 150 ℃, and back humidity province is between 170～180 ℃; Heat corresponding preheating time according to the specification of mould, when preheating time reach said temperature can ordinary production.
(5), pultrusion
Adopt hydraulic reciprocating type extruding equipment or crawler type extruding equipment, alkali-free glass fibre pultrusion yarn is immersed in the steeping vat, and fix adhesive sheet; Behind the alkali-free glass fibre pultrusion yarn boundling that passes in advance, be fixed on the pulling force dolly, and start the pulling force dolly; Alkali-free glass fibre pultrusion yarn is pulled out from mould, after waiting to pull out product, the company of drawing is adjusted to rational state; Hocket by the pulling force dolly, product is pulled out die cavity.
(6), become cutting surely
Press length requirement, the pulling force dolly is automatically cut into type after pulling out the product of sufficient length.
The invention compared with prior art, structure is different, rack body is provided with embedded left and right sides chock plug structure, is convenient to install cable application, rack inner wall cavity and chock plug outer wall embedding junction are provided with corresponding concavo-convex line bindiny mechanism and are convenient to firm the connection.
Characteristics of the present invention are supports that said fiber reinforcement same with thermosetting compound material constitutes, and mainly are made up of glass fibre that plays humidification and the thermosetting resin that plays cementation, transmitted load effect.The hot strength of glass fibre is very high, reaches 3450mpa.
Characteristics of the present invention are that the fiber reinforced nylon support that the rigidity of said fiber reinforcement same with thermosetting compound material support is produced than prior art doubles.Even also indeformable under permanent load, it is such toward having a down dip metal system cable bearer also can not occur.
Characteristics of the present invention are that said fiber reinforcement same with thermosetting compound material has fire line.Oxygen index (OI) is to estimate the important detection means of cable fire-proof product, and oxygen index (OI) is meant under maximum oxygen condition, the characteristic of the anti-burning of fire-proof product.In engineering, use and to confirm according to combustion intensity.For example, 30 with under the condition of cable, as the cable accident of igniting takes place, assemble with the interior elevated temperature heat that promptly forms more than 500 ℃ at 4min, thereby cause the cable across pitch to prolong combustion.The cable at the intensive place of cable is many more, and flammable physique amount is big more.When 30 cables, physique amount that unit length is flammable is 20.5kg/m, calculates with 300 cables now, and physique amount that unit length is flammable is 158kg/m, produces combustion intensity by maximum possible and calculates, oxygen index (OI) otherwise less than 65%.Characteristics of the present invention are fiber reinforcement same with thermosetting compound material oxygen index (OI) >=70%, meet the low cigarette of fire prevention, Halogen, and nontoxic safety requirements, being higher than oxygen index (OI) of the prior art is 52%.
Characteristics of the present invention are that said fiber reinforcement same with thermosetting compound material support is corrosion-resistant, are particluarly suitable for humidity, and salt fog uses in acid and the weak base environment.
Characteristics of the present invention are that electrical insulating property is good, and insulating properties can be adjusted according to instructions for use.The electric insulation type, insulaion resistance＞1000G Ω; Antistatic type, sheet resistance＜10G Ω; Easy to use, support is directly pre-buried to advance the cable furrow bank, and long service life, underground more than 50 years, on the ground more than 20 years.
[description of drawings]
Fig. 1 is the product configurations figure of the invention;
Fig. 2 connects sketch map for the product configurations of the invention;
Fig. 3 is the left chock plug structural representation of the invention;
Fig. 4 is the right chock plug structural representation of the invention;
Fig. 5 is the structural representation of the right chock plug of another embodiment of the invention.
Referring to Fig. 1,1 is rack body, and 2 is left chock plug, and 3 is the right chock plug of inverted L shape, and a is a rack body left end end points, and b is a rack body right-hand member end points.
Referring to Fig. 2,4 and 5 for the outer wall on left chock plug convex top is provided with corresponding two grooves up and down, and described corresponding up and down two grooves embed two the convex line reinforcements up and down that connect the support cavity inner wall; If cavity inner wall is a smooth structure; Do not have and be provided with reinforcement; Do not have corresponding two grooves up and down on the outer wall on so left chock plug convex top, if cavity inner wall is provided with the reinforcement more than, the outer wall on so left chock plug convex top is provided with corresponding groove more than up and down; 6 and 7 is that right chock plug hollow outer wall is provided with corresponding two grooves up and down; Described corresponding up and down two grooves embed two the convex line reinforcements up and down that connect the support cavity inner wall; If cavity inner wall is a smooth structure, nothing is provided with reinforcement, does not have corresponding two grooves up and down on the outer wall on so right chock plug convex top; If cavity inner wall is provided with the reinforcement more than, the outer wall on so right chock plug convex top is provided with corresponding groove more than up and down.
Referring to Fig. 3, Fig. 3 is the left chock plug structural representation of the invention, and described left chock plug can adopt the right chock plug of inverted L shape as shown in Figure 4 to substitute, or adopts the right chock plug of mountain font as shown in Figure 5 to substitute.
Referring to Fig. 4, Fig. 4 is the right chock plug structural representation of the invention, and described right chock plug can adopt convex left side chock plug as shown in Figure 3 to substitute, or adopts the right chock plug of mountain font as shown in Figure 5 to substitute.Described left and right sides chock plug can also be transformed into the left and right sides chock plug of various geometries.
[specific embodiment]
Below in conjunction with accompanying drawing the invention is explained further details, this manufacturing technology and pultrusion technique technology are more clearly to this professional person.
Product design requirement with reference to Fig. 1; Hold mould successfully, get unsaturated polyester resin 100.33KG, tree fourth fat 0.78KG, the third zincification 2.08KG, curing agent methyl ethyl ketone peroxide 2.48KG, mill base 3.00KG, releasing agent 2.08KG, calcium carbonate 19.55KG and join slurry; Adopt the hydraulic reciprocating type extruding equipment; The scheme of pulling out is to replace the continual support that pulls back out by two hydraulic cylinders; The production hydraulic cylinder of wall scroll support just can produced more than 100 tons, and is different according to the bar number of speed or requirement production simultaneously, selects the hydraulic reciprocating type extruding equipment of different tonnages; Mould is placed in extruding equipment assigned position and fixing; Alkali-free glass fibre pultrusion yarn and glass fibre needled mat are immersed steeping vat through row's yarn device soak into above-mentioned unsaturated polyester resin and join slurry solution, get into the preforming mould heating after, be carried out to pattern gel, curing; Solidify the back goods and successively from mould, extract, by the cutting machine customized cut-off by hauling machine.Described left and right sides chock plug is selected Fig. 3 or Fig. 4 or shown in Figure 5; Hold mould successfully; Injection mo(u)lding or cast molding, material adopts resin material or plastic material, and described resin material is that epoxy resin or phenolic resins or mylar etc. contain rigid resin material; Described plastic material is engineering plastics such as ABS or PVC, then with support assembling finished product.As select the crawler type extruding equipment to carry out pultrusion; This kind production technology is different in the mode of traction with the difference of hydraulic reciprocating type essence; Difference be crawler belt up and down two contact-making surfaces clamp the support that front end forms out and counterclockwise pull out always backward, other processing mode is processed identical with hydraulic reciprocating type.
Entire bracket main body (1) length overall is between 400mm～800mm, wall thickness 2.90mm～3.19mm, and buckling strength 215MPa, hardness Barcol 49, bending load heat distortion temperature＞130 ℃, the length of landfill part is between 150mm～240mm.During installation; The available water cement mortar with rack body (1) left part landfill build into and be fixed in the cable duct sidewall; Cable is undertaken on the rack body (1); For preventing cable landing from the rack body, on the sidewall of rack body right part, embed and be connected with the right chock plug of an inverted L shape or convex shape chock plug or mountain font chock plug structure.In the installation process, cable bearer requires balance, vertical, and sidewall is done cross arrangement in the cable duct both sides, and homonymy support level spacing 800mm guarantees the balanced carrying of cable bearer.
The bearing capacity of instance of the present invention detects as follows: the unit cable support is fixed on the wall, and constant depth is 240mm, and extension elongation is 320mm, at its terminal 130kg that loads, keeps 30min, and cable bearer does not have distortion, do not have and destroy; With water-fast (the normal temperature running water, 24h) back unit cable support is fixed on the wall, constant depth is 240mm, extension elongation is 320mm, at its terminal 120kg that loads, keeps 30min, cable bearer does not have distortion, does not have destruction; (mass percent is 3% hydrochloric acid solution 6h with acid-fast alkali-proof; Mass percent is 5% sodium hydroxide solution 6h) back unit cable support is fixed on the wall; Constant depth is 240mm, and extension elongation is 320mm, at its terminal 120kg that loads; Keep 30min, cable bearer does not have distortion, does not have and destroy.
Claims (8)
1. a fiber reinforcement same with thermosetting compound material cable bearer comprises that rack body (1) is the column type structure of fiberglass, it is characterized in that described rack body is the unit cable support; Be provided with cavity structure in the rack body, for smooth structure or be provided with some convex line reinforcing rib structures, rack body cavity left part sidewall embeds and connects left chock plug (2) on the inwall in the cavity; Embed the right chock plug (3) of connection one inverted L shape on the sidewall of rack body cavity right part, right chock plug top is a little more than rack body, and the bottom of right chock plug is parallel with rack body; The two sides, front and back of right chock plug is identical with the front-back of rack body, and rack body left end end points a is to the smooth connection of rack body right-hand member end points b, and described fiber reinforcement same with thermosetting compound material cable bearer material is combined by unsaturated polyester resin and alkali-free glass fibre pultrusion yarn and glass fibre needled mat pultrusion; Described rack body wall thickness 2.90～3.19mm; Buckling strength 215MPa, hardness Barcol 49, bending load heat distortion temperature＞130 ℃; Oxygen index (OI) >=70%; Insulaion resistance＞1000G Ω, sheet resistance＜10G Ω, environment preference temperature-20 ℃～+ 70 ℃.
2. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1; It is characterized in that described unsaturated polyester resin is following according to the percentage by weight proportioning: unsaturated polyester resin 77%, tree fourth fat 0.6%, the third zincification 1.6%; Curing agent methyl ethyl ketone peroxide 1.9%; Mill base 2.3%, releasing agent 1.6%, calcium carbonate 15%.
3. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1, it is square or circular to it is characterized in that described cavity structure is shaped as rectangle, and the inwall in the cavity is provided with up and down or corresponding two the convex line reinforcements in the left and right sides.
4. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1; It is characterized in that said left chock plug is convex structure or inverted L shape structure or epsilon-type structure, on the outer wall on convex top, be provided with and the corresponding groove of cavity inner wall convex line reinforcement.
5. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1; The shape that it is characterized in that described right chock plug replaces with stack a bite font structure formation on the horizontal L type, on the outer wall of hollow, is provided with and the corresponding groove of cavity inner wall convex line reinforcement.
6. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1 is characterized in that the shape of described right chock plug replaces with the chock plug of convex shape structure.
7. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1 is characterized in that the shape of described right chock plug replaces with the chock plug of epsilon-type structure.
8. a kind of fiber reinforcement same with thermosetting compound material cable bearer as claimed in claim 1 is characterized in that alkali-free glass fibre pultrusion yarn replaces with medium-alkali glass fibre pultrusion yarn.
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| CN2010102781197A CN101943295B (en) | 2010-09-10 | 2010-09-10 | Fiber reinforcement thermosetting cable bearer and production method thereof |
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| CN2010102781197A CN101943295B (en) | 2010-09-10 | 2010-09-10 | Fiber reinforcement thermosetting cable bearer and production method thereof |
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| CN101943295B true CN101943295B (en) | 2012-01-04 |
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| CN107696645B (en) * | 2016-08-08 | 2022-07-26 | 胡海东 | Composite material plate and box body |
| CN107658806A (en) * | 2017-11-01 | 2018-02-02 | 江苏安荣电气设备股份有限公司 | A kind of insulated cable support |
| CN110641050A (en) * | 2019-09-28 | 2020-01-03 | 山东北方玻璃钢工程有限公司 | Manufacturing process of composite material bracket for supporting crops |
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| CN1062509C (en) * | 1998-07-23 | 2001-02-28 | 中山大学 | Electric cable fibre reinforced moulding compound supporter and mfg. method thereof |
| CN201297447Y (en) * | 2008-09-18 | 2009-08-26 | 广东宝通玻璃钢有限公司 | High strength cable bracket |
| CN201265709Y (en) * | 2008-11-28 | 2009-07-01 | 刘安双 | Cable stand |
| CN101592263A (en) * | 2009-07-03 | 2009-12-02 | 宁波华缘玻璃钢电器制造有限公司 | Metro cable support |
| CN201548363U (en) * | 2009-12-25 | 2010-08-11 | 哈尔滨复合材料设备开发公司 | Special device for detecting traction in producing reinforced core of composite cable |
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Denomination of invention: A fiber reinforced thermosetting cable bracket and its production method Granted publication date: 20120104 Pledgee: ZHENSHI HOLDING GROUP Co.,Ltd. Pledgor: Shenzhen xinbaotong Material Technology Co.,Ltd.|GUANGDONG QUANQIUTONG PIPE NETWORK CO.,LTD.|Chongqing xinbaotong Material Technology Co.,Ltd. Registration number: Y2024980002730 |