CN1719549A - Pantograph sliding plate of assorted fibre reinforced composite material and preparing method thereof - Google Patents
Pantograph sliding plate of assorted fibre reinforced composite material and preparing method thereof Download PDFInfo
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- CN1719549A CN1719549A CN 200510043998 CN200510043998A CN1719549A CN 1719549 A CN1719549 A CN 1719549A CN 200510043998 CN200510043998 CN 200510043998 CN 200510043998 A CN200510043998 A CN 200510043998A CN 1719549 A CN1719549 A CN 1719549A
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Abstract
This invention relates to a hybrid fiber reinforcement compound material pantograph slide plate with lamination used in railway electric locomotives and its preparation method, which takes a metal net and hybrid fiber reinforcement compound material as the backing of said slide plate and makes them distribute in lamination, among which, phenolic resin is taken as the matrix, hybrid fiber as the reinforcement agent, rubber, graphite, copper powder, baritite and at least three kinds in SiO2 as the friction performance modifiers of the compound material to be mixed fully to be hot-pressed with the metal net to form a pantograph slide plate.
Description
Technical field
The invention belongs to field of new, particularly relate to a kind of pantograph sliding plate of assorted fibre reinforced composite material that is suitable for the railway electric locomotive application and preparation method thereof with layer structure feature.
Background technology
Present electric locomotive pantograph sliding plate mainly contains powder metallurgy slide plate, common carbon slide plate and impregnating metal carbon slide plate.The powder metallurgy slide plate is a matrix material with copper powder or iron powder mainly, and add other metal dusts and the non-metal powder compacting sintering forms, it has advantages such as mechanical strength height, shock resistance, but it is very serious to the wearing and tearing of copper contact line conducting wire, and electric arc in use easily takes place, not only increase mechanical wear and arc wear, also disturbed radio signal.The greasy property of common carbon slide plate, anti-attrition performance and arc resistance can be all relatively good, in light weight, noise is little, in use, can on contact line conducting wire, form thin film, improved the wearing and tearing to contact line conducting wire greatly, simultaneously, he also has excellent contact stability, little to radio signal interference, but carbon slide plate mechanical strength is low, fragility is big, easily falls piece and fracture, not only useful life low, and cause accident between pantograph easily.Impregnating metal carbon slide plate is with common carbon slide plate steeping liq metal under HTHP, make the fine and closely woven wire netting of formation in the carbon base body, thereby guarantee that this material has intensity and the good electrical conductivity higher than common carbon slide plate, but this slide plate complicated process of preparation, the cost height, stability is relatively poor, and more serious to the wearing and tearing of copper contact wire.Publication number is that the Chinese patent of CN1178745A discloses and a kind ofly makes the carbon-carbon composite pantograph pan of reinforcing agent preparation with short carbon fiber, though solved the problem of slide plate to the copper conductor serious wear, shock resistance and rupture strength are still lower.Publication number is that the Chinese patent of CN1265429A discloses with long carbon fiber and prepared pantograph slide-plate of composite carbon-copper material as reinforcing agent, and shock resistance has improvement to a certain degree, but its resistivity is still higher, can not satisfy the requirement of modern electric locomotive to slide plate.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of mechanical strength height, stable performance, pantograph sliding plate of assorted fibre reinforced composite material that cost is low and preparation method thereof are provided.
The present invention realizes in the following manner:
Pantograph sliding plate of assorted fibre reinforced composite material is base material and makes it mutual interlayer distribution with wire netting and assorted fibre reinforced composite material; 0.05～3 millimeter of wire netting fibre diameter, 0.1～15 millimeter of mesh diameter; It is characterized in that employed wire netting is any of copper mesh, aluminium net and stainless (steel) wire, consumption is 10～70% of a slide plate total weight; Assorted fibre reinforced composite material is made up of assorted fibre, phenol-formaldehyde resin modified, frictional property regulator, and the mass percent of each component is: assorted fibre 25-50%, phenol-formaldehyde resin modified 15-40%, frictional property regulator 20-35%; Assorted fibre is at least two kinds in carbon fiber, metallic fiber, mineral fibres, the glass fibre.
Above-mentioned pantograph sliding plate of assorted fibre reinforced composite material is characterized in that described assorted fibre length all is not more than 50 millimeters, and metallic fiber is at least a in steel fibre, copper fiber, aluminum fiber, cast iron fiber and the stainless steel fibre; Mineral fibres is at least a in sepiolite fibre, wollastonite fibre, rock wool, sillimanite fiber and the palygorskite fiber.
Above-mentioned pantograph sliding plate of assorted fibre reinforced composite material is characterized in that described frictional property regulator adopts at least three kinds in rubber, graphite, copper powder, barium sulfate, the silicon dioxide.
The preparation method of above-mentioned pantograph sliding plate of assorted fibre reinforced composite material is characterized in that comprising following steps:
(1) compounding process: earlier modified phenolic matrix resin, assorted fibre are evenly mixed, at least three kinds of compositions that add successively afterwards in frictional property regulator rubber, graphite, copper powder, barium sulfate, the silicon dioxide are made molding compound;
(2) preliminary drying operation: with the shredding of molding compound elder generation, then low molecular fugitive constituent is wherein removed, bake out temperature is preferably 100 ± 5 ℃, and the preliminary drying time is 20-40 minute;
(3) suppression process: molding compound and wire netting are added in the mould interlayer respectively distribute and reach 10～50 layers, pressurized, heated is until solidifying and take out product from mould, and forming temperature 160-200 ℃, briquetting pressure 30-35 MPa, molding time 2.0-3.0 minute/millimeter;
(4) postprocessing working procedures: product is put into baking oven carry out the back cured, post-processing temperature is at 160-180 ℃, 10 minutes/millimeter reprocessing time.
In the material prescription system of the present invention, strengthen component and adopt assorted fibre, can form random crossover network, guarantee that from microstructure the pantograph sliding plate of assorted fibre reinforced composite material of making has good mechanical performance and wear-resisting and antifriction performance.The pantograph sliding plate of assorted fibre reinforced composite material of manufacturing of the present invention has powder metallurgy slide plate strong mechanical performance and advantages such as carbon slide plate excellent lubrication characteristic and metal material good electrical conductivity concurrently, is the desirable pantograph pan of the required usefulness of modern railways electric locomotive.This slide plate has powder metallurgy slide plate strong mechanical performance and advantages such as carbon slide plate excellent lubrication characteristic and metal material good electrical conductivity concurrently, thereby satisfies the requirement of Modern High-Speed railway electric locomotive pantograph pan.
Embodiment:
Provide two most preferred embodiments of the present invention below.
Embodiment 1: carbon fiber 8% in the assorted fibre reinforced composite material, steel fibre 15%, wollastonite fibre 12%, graphite powder 12%, acrylonitrile-butadiene rubber 10%, copper powder 8%, silicon dioxide 5%, phenolic resins 30%, stirs above-mentioned compound furnishing pasty state with absolute ethyl alcohol.Pour into then in the stainless steel pallet, put into baking oven, dried 1 hour down at 100 ℃, the compound after the oven dry is filled in the particular manufacturing craft of preparation slide plate, about 4 millimeters of compound thickness is spread the copper mesh of about 1 millimeters thick of one deck then, distributes 25 layers between common phase.100MPa pressure, 160 ℃ of following hot pressing 30 minutes, the fiber hybrid composite slide plate of making was 160 ℃ of following reprocessings 30 minutes.This slide plate density 2.08g.cm
-3, resistivity 3.6 * 10
-6Ω .m, impact strength 32.3KJ.m
-2, bending strength 138MPa.As seen this slide plate has advantages such as density is low, resistivity is less, shock resistance.Show that through bench test this slide plate weight wear resistance ratio only is 70.1g/ ten thousand locomotive kilometers, the contact wire wear resistance ratio is 0.0145 millimeter
2/ ten thousand shelves, every performance index satisfy the requirement of modern railways use for electric locomotive pantograph pan far away.
Embodiment 2: carbon fiber 15% in the assorted fibre reinforced composite material, sepiolite fibre 25%, graphite powder 10%, acrylonitrile-butadiene rubber 10%, barium sulfate 5%, silicon dioxide 5%, phenolic resins 30% is filled in the compound oven dry in the particular manufacturing craft of preparation slide plate about 3 millimeters of compound thickness after mixing, spread the stainless (steel) wire of about 1 millimeters thick of one deck then, distribute about 40 layers between common phase.100MPa pressure, 160 ℃ of following hot pressing 30 minutes, the carbon fibre composite slide plate of making was 160 ℃ of following reprocessings 30 minutes.This slide plate density 2.18g.cm
-3, resistivity 4.6 * 10
-6Ω .m, impact strength 38.6KJ.m
-2, bending strength 168MPa, test shows that the every performance index of this slide plate are good, satisfies the requirement of modern railways use for electric locomotive pantograph pan.
Embodiment 3: carbon fiber 1% in the assorted fibre reinforced composite material, copper fiber 10%, glass fibre 20%, rock wool 9%, graphite powder 3%, copper powder 10%, acrylonitrile-butadiene rubber 2%, silicon dioxide 5%, phenolic resins 40% is filled in the compound oven dry in the particular manufacturing craft of preparation slide plate about 5 millimeters of compound thickness after mixing, spread the aluminium net of about 2 millimeters thick of one deck then, distribute about 15 layers between common phase.100MPa pressure, 160 ℃ of following hot pressing 30 minutes, the carbon fibre composite slide plate of making was 160 ℃ of following reprocessings 30 minutes.This slide plate density 2.02g.cm
-3, resistivity 4.2 * 10
-6Ω .m, impact strength 31.2KJ.m
-2, bending strength 126MPa, test shows that the every performance index of this slide plate are good, satisfies the requirement of modern railways use for electric locomotive pantograph pan.
Claims (4)
1. pantograph sliding plate of assorted fibre reinforced composite material is base material and makes it mutual interlayer distribution with wire netting and assorted fibre reinforced composite material; 0.05～3 millimeter of wire netting fibre diameter, 0.1～15 millimeter of mesh diameter; It is characterized in that employed wire netting is any of copper mesh, aluminium net and stainless (steel) wire, consumption is 10～70% of a slide plate total weight; Assorted fibre reinforced composite material is made up of assorted fibre, phenol-formaldehyde resin modified, frictional property regulator, and the mass percent of each component is: assorted fibre 25-50%, phenol-formaldehyde resin modified 15-40%, frictional property regulator 20-35%; Assorted fibre is at least two kinds in carbon fiber, metallic fiber, mineral fibres, the glass fibre.
2. pantograph sliding plate of assorted fibre reinforced composite material according to claim 1, it is characterized in that described assorted fibre length all is not more than 50 millimeters, metallic fiber is at least a in steel fibre, copper fiber, aluminum fiber, cast iron fiber and the stainless steel fibre; Mineral fibres is at least a in sepiolite fibre, wollastonite fibre, rock wool, sillimanite fiber and the palygorskite fiber.
3. pantograph sliding plate of assorted fibre reinforced composite material according to claim 1 is characterized in that described frictional property regulator adopts at least three kinds in rubber, graphite, copper powder, barium sulfate, the silicon dioxide.
4. the preparation method of the described pantograph sliding plate of assorted fibre reinforced composite material of claim 1-3, its feature comprises following steps:
(1) compounding process: modified phenolic matrix resin, assorted fibre are evenly mixed earlier, and at least two kinds of compositions that gradation is afterwards added in frictional property regulator rubber, graphite, copper powder, barium sulfate, di-iron trioxide, magnesium oxide, the silicon dioxide are made molding compound;
(2) preliminary drying operation: with the shredding of molding compound elder generation, then low molecular fugitive constituent is wherein removed, bake out temperature is preferably 100 ± 5 ℃, and the preliminary drying time is 20-40 minute;
(3) suppression process: molding compound and wire netting are added in the mould interlayer respectively distribute and reach 15～40 layers, pressurized, heated is until solidifying and take out product from mould, and forming temperature 160-200 ℃, briquetting pressure 30-35 MPa, molding time 2.0-3.0 minute/millimeter;
(4) postprocessing working procedures: product is put into baking oven carry out the back cured, post-processing temperature is at 160-180 ℃, 10 minutes/millimeter reprocessing time.
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| CNB2005100439984A CN1326152C (en) | 2005-07-08 | 2005-07-08 | Pantograph sliding plate of assorted fibre reinforced composite material and preparing method thereof |
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| CNB2005100439984A CN1326152C (en) | 2005-07-08 | 2005-07-08 | Pantograph sliding plate of assorted fibre reinforced composite material and preparing method thereof |
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| CN1326152C CN1326152C (en) | 2007-07-11 |
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| CN101906549A (en) * | 2010-08-17 | 2010-12-08 | 南京航空航天大学 | Porous foam metal based embedded type solid self-lubricating composite material and preparation method thereof |
| CN101519570B (en) * | 2009-03-29 | 2010-12-29 | 宜兴市溢洋墨根材料有限公司 | High-temperature resistant conducting glue for pantograph whole carbon sliding plate of electric high speed locomotive |
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| CN102952963A (en) * | 2012-11-07 | 2013-03-06 | 中国路桥工程有限责任公司 | Preparation method of carbon nanotube enhanced carbon aluminum and copper composite sliding plate |
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| CN103603115A (en) * | 2013-10-30 | 2014-02-26 | 中国第一汽车股份有限公司 | Method for preparing ultrafine carbon fiber bundles reinforced by aldehyde resins |
| CN104240794A (en) * | 2014-09-11 | 2014-12-24 | 荣成炭谷有限公司 | Metalized carbon conducting material and manufacturing method thereof |
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| CN105633756A (en) * | 2015-12-31 | 2016-06-01 | 安徽枫慧金属有限公司 | Production method for fabricating wear-resistant material of high-speed rail current collection sliding plate |
| CN108422868A (en) * | 2018-05-10 | 2018-08-21 | 青岛大学 | Carbon fiber composite material for pantograph slide plate and preparation method thereof |
| CN109020545A (en) * | 2018-08-13 | 2018-12-18 | 大同新成新材料股份有限公司 | A kind of pantograph pan and preparation method thereof |
| CN109108291A (en) * | 2018-09-03 | 2019-01-01 | 大同新成新材料股份有限公司 | A kind of preparation process of fibre reinforced pantograph pan |
| CN109128187A (en) * | 2018-09-03 | 2019-01-04 | 大同新成新材料股份有限公司 | A kind of preparation process of resin type Material for Pantograph Slide |
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