CN102807844A - Friction material slightly wearing mating plate - Google Patents

Friction material slightly wearing mating plate Download PDF

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CN102807844A
CN102807844A CN201210305791XA CN201210305791A CN102807844A CN 102807844 A CN102807844 A CN 102807844A CN 201210305791X A CN201210305791X A CN 201210305791XA CN 201210305791 A CN201210305791 A CN 201210305791A CN 102807844 A CN102807844 A CN 102807844A
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parts
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friction materials
crystalline flake
fiber
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CN102807844B (en
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缪卫巍
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NANTONG QIRUI HYDRAULIC EQUIPMENT CO Ltd
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Abstract

The invention discloses a friction material slightly wearing a mating plate. The friction material consists of the following components in part by weight: 16 to 18 parts of butyronitrile modified phenolic resin, 2 to 3 parts of aramid fiber, 3 to 5 parts of aluminum fiber, 7 to 9 parts of vermiculite fiber, 5 to 7 parts of calcium carbonate whisker, 4 to 6 parts of -200-mesh silica, 3 to 5 parts of -250-mesh electric cast mullite, 2 to 4 parts of colloid molybdenum disulfide, 2 to 3 parts of crystalline flake graphite with the particle size of 40 to 60 meshes, 5 to 7 parts of -120-mesh crystalline flake graphite, 3 to 5 parts of -200-mesh antimony sulfide powder, and 10 to 12 parts of -200-mesh barium sulfate.

Description

A kind of to the little friction materials of mating plate wearing and tearing
Technical field
The present invention relates to friction material field, particularly a kind of to the little friction materials of mating plate wearing and tearing.
Background technology
Friction materials is made up of sticker, fortifying fibre, abrasive material, lubricant and five big types of materials of filler usually.Its function is following:
Sticker: powder body materials such as fortifying fibre, abrasive material, lubricant and filler are bonded together.What generally adopt is resin modified phenol resin.Commonly used has: cashew nut oil modified alkyd resin, nitrile rubber modified phenolic resin, aromatic modified resol and various import high-temperature resin.
Fortifying fibre: in the friction process of friction materials, play a crucial role, can play enhancement and improve the friction and wear behavior characteristic.Fortifying fibre commonly used has: fibrous magnesium silicate, steel fiber, copper fiber, vermiculite fiber, wollastonite fibre, sepiolite fibre, spun glass, ceramic fiber, aramid fiber, thomel, polyacrylonitrile fibre etc.Add fibrous magnesium silicate in the brake material, have characteristics such as snappiness, frictional coefficient are high, cheap, but make and use in atmosphere pollution and carcinogenic.Thomel and aramid fiber have intensity height, a series of excellent properties such as heat-resisting, wear-resisting, corrosion-resistant, are a kind of more satisfactory reinforcing fiber materials, but cost an arm and a leg.Characteristic such as that ceramic fiber has is heat-resisting, frictional coefficient is high, price is low, but poor thermal conductivity is prone to make brake material crackle to occur.Steel fiber have the intensity height, heat-resisting, thermal conductivity good, frictional coefficient height and wide material sources are cheap.
Abrasive material: in friction materials, play the effect of raising and stable high temperature friction coefficient.Abrasive material commonly used has: aluminum oxide, silicon oxide, zirconium sulfate, Calcium Fluoride (Fluorspan), silit, red stone, glass-cermic powder and refractory metal etc.Abrasive material should have sufficiently high physical strength and hardness, guaranteeing in the friction process as much as possible energy expenditure in the breakage of abrasive particle, but can not be too high, otherwise the mating material that worn and torn to a great extent.Globule size to abrasive material also has certain requirement simultaneously, has played not effect too for a short time, the wearing and tearing that then can increase mating material too greatly, even cause noise.
Lubricant: in friction materials, play and reduce friction, improve wear resistance, and play the effect of stablizing frictional behaviour, also help the moulded section of friction materials simultaneously.Lubricant commonly used has: graphite, molybdenumdisulphide, tungsten disulfide, cuprous sulfide, SP 1, ANTIMONY SULPHIDE, Natural manganese dioxide, lead, bismuth, antimony, coke, talcum powder etc.Lubricant is along with the increase of add-on, and wear resistance obviously improves, but frictional coefficient can descend, and the physical strength of material also can descend, so add-on is unsuitable too many.
Filler: not only can improve the physical property of material at friction materials, but also can play the effect of regulating braking effect, suppressing noise and reduce cost.Filler commonly used has: kaolin, Feldspar Powder, permanent white, lime carbonate, copper scale, silica powder, tyre powder, rubber powder, wollastonite powder etc.Filler is an indispensable component in the friction materials.
At present, composite friction material be with these above materials according to prescription and processing requirement, prepare according to following steps: the first step: with starting material by filling a prescription weighing, thorough mixing in high speed mixer then.Second step: powder mix weighed put into mould and cold pressing; With or the 3rd the step: hot-forming, guarantee that resin solidification reacts completely.Hot pressing temperature will be confirmed according to the resin solidification temperature, generally more than 140 ℃; Pressure 12-20Mpa; Soaking time is confirmed with size according to the shape of material with the venting number of times.The 4th step: aftertreatment.Confirm post-processing temperature according to the resin solidification temperature, generally more than 140 ℃; Soaking time: 4-24h.The 5th step: mechanical workout, spray paint.Obtain shape, mechanical property, the different composite friction material of friction and wear characteristic.
See that from present bibliographical information people are the improvement of frictional coefficient and polishing machine to the more concern of Study on Friction Materials, and the improvement of various mechanical properties or the like.In order to increase frictional coefficient, need in friction materials, add aforesaid abrasive material, these abrasive materials are generally the higher pottery of hardness; The higher pottery of these hardness can cause scuffing to mating plate when friction materials is worked, particularly when hoping high friction coefficient, people tend to add like these high firmness potteries of silit or the like; Cause the very big scuffing of mating plate; And we know, mating plate generally than high the getting of friction materials cost, is not hoped too early scrapping usually; Therefore, hope a kind of, friction materials that simultaneously again can keep higher coefficient of friction little of exploitation to the mating plate wearing and tearing.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide to the little friction materials of mating plate wearing and tearing.
For realizing above-mentioned purpose, technical scheme of the present invention is following:
A kind of to the little friction materials of mating plate wearing and tearing, said friction materials is made up of following component in weight part: fourth cyanogen modified phenolic resins 16-18 part, aramid fiber 2-3 part; Aluminum fiber 3-5 part, vermiculite fiber 7-9 part, calcium carbonate crystal whisker 5-7 part ,-200 order silicon-dioxide 4-6 parts;-250 order electrofused mullite 3-5 parts, colloid molybdenumdisulphide 2-4 part, 40-60 order crystalline flake graphite 2-3 part;-120 order crystalline flake graphite 5-7 parts ,-200 orders sulfuration antimony powder 3-5 part ,-200 order permanent white 10-12 parts.
Preferably, said friction materials is made up of following component in weight part: fourth cyanogen modified phenolic resins 16.5-17.5 part, aramid fiber 2.2-2.8 part; Aluminum fiber 3.5-4.5 part, vermiculite fiber 7.5-8.5 part, calcium carbonate crystal whisker 5.5-6.5 part ,-200 order silicon-dioxide 4.5-5.5 parts;-250 order electrofused mullite 3.5-4.5 parts; Colloid molybdenumdisulphide 2.5-3.5 part, 40-60 order crystalline flake graphite 2.2-2.8 part ,-120 order crystalline flake graphite 5.5-6.5 parts;-200 orders sulfuration antimony powder 3.5-4.5 part ,-200 order permanent white 10.5-11.5 parts.
Most preferably, said friction materials is made up of following component in weight part: 17 parts of fourth cyanogen modified phenolic resinss, 2.5 parts of aramid fibers; 4 parts of aluminum fibers, 8 parts of vermiculite fibers, 6 parts of calcium carbonate crystal whiskers, 5 parts of-200 order silicon-dioxide; 4 parts of-250 order electrofused mullites, 3 parts of colloid molybdenumdisulphide, 2.5 parts of 40-60 order crystalline flake graphites; 6 parts of-120 order crystalline flake graphites, 4 parts of-200 orders sulfuration antimony powders, 11 parts in-200 order permanent white.
Friction materials of the present invention can be used for the braking devices of braking automobile and common engineering machinery.
Beneficial effect of the present invention is:
1) the present invention is on the basis of a large amount of experiments; Selected suitable friction constituent element; Be silicon-dioxide and electrofused mullite; And lubricant component i.e. crystalline flake graphite, ANTIMONY SULPHIDE and the colloid molybdenumdisulphide of two kinds of different grain size specifications, and make its wearing and tearing reduce to mating plate through the granularity and the content of adjustment friction constituent element and lubricant component, keep high friction coefficient simultaneously.Be specially: the selection Mohs' hardness is about 7 silicon-dioxide and the high particles of hardness such as electrofused mullite replacement aluminium sesquioxide and silit, reduces the granularity of hard point simultaneously, under the situation that its part by weight does not reduce or improves a little; Because granularity is littler, so its dispersivity in matrix is better, therefore can keep not reducing basically of frictional coefficient; Simultaneously because decrease of hardness; Particle size reduction is when friction, to the scuffing reduction of mating plate; Cut is
Figure BSA00000768612300041
; Thereby improved the work-ing life of mating plate, through test, its wear rate reduces 50-70% when using existing friction materials.
2) in addition, the present invention also pays close attention to friction and wear behavior and mechanical and physical performance except paying close attention to the wearing and tearing to mating plate; The allotment of above-mentioned constituent element is except little to the wearing and tearing of mating plate; Friction and wear behavior is also excellent, whole life period, and during the whole working temperature of friction materials; Stable friction factor is between 0.40-0.42, and the friction materials abrasion loss is lower than 0.09 * 10 -7Cm 3/ (Nm); The acquisition of this performance is except closely related with above-mentioned friction and lubricant component; With the selection of three kinds of fibers and collocation and calcium carbonate crystal whisker great relation is arranged also,, improved friction and wear behavior again because it has promptly increased the intensity of matrix; Therefore, played coordination technique effect preferably between the each component of the present invention.
Embodiment
Embodiment one
A kind of to the little friction materials of mating plate wearing and tearing, said friction materials is made up of following component in weight part: 16 parts of fourth cyanogen modified phenolic resinss, 3 parts of aramid fibers; 3 parts of aluminum fibers, 9 parts of vermiculite fibers, 5 parts of calcium carbonate crystal whiskers, 6 parts of-200 order silicon-dioxide; 3 parts of-250 order electrofused mullites, 4 parts of colloid molybdenumdisulphide, 2 parts of 40-60 order crystalline flake graphites; 7 parts of-120 order crystalline flake graphites, 3 parts of-200 orders sulfuration antimony powders, 12 parts in-200 order permanent white.
Embodiment two
A kind of to the little friction materials of mating plate wearing and tearing, said friction materials is made up of following component in weight part: 18 parts of fourth cyanogen modified phenolic resinss, 2 parts of aramid fibers; 5 parts of aluminum fibers, 7 parts of vermiculite fibers, 7 parts of calcium carbonate crystal whiskers, 4 parts of-200 order silicon-dioxide; 5 parts of-250 order electrofused mullites, 2 parts of colloid molybdenumdisulphide, 3 parts of 40-60 order crystalline flake graphites; 5 parts of-120 order crystalline flake graphites, 5 parts of-200 orders sulfuration antimony powders, 10 parts in-200 order permanent white.
Embodiment three
A kind of to the little friction materials of mating plate wearing and tearing, said friction materials is made up of following component in weight part: 16.5 parts of fourth cyanogen modified phenolic resinss, 2.8 parts of aramid fibers; 3.5 parts of aluminum fibers, 8.5 parts of vermiculite fibers, 5.5 parts of calcium carbonate crystal whiskers, 5.5 parts of-200 order silicon-dioxide; 3.5 parts of-250 order electrofused mullites, 3.5 parts of colloid molybdenumdisulphide, 2.2 parts of 40-60 order crystalline flake graphites; 6.5 parts of-120 order crystalline flake graphites, 3.5 parts of-200 orders sulfuration antimony powders, 11.5 parts in-200 order permanent white.
Embodiment four
A kind of to the little friction materials of mating plate wearing and tearing, said friction materials is made up of following component in weight part: 17.5 parts of fourth cyanogen modified phenolic resinss, 2.2 parts of aramid fibers; 4.5 parts of aluminum fibers, 7.5 parts of vermiculite fibers, 6.5 parts of calcium carbonate crystal whiskers, 4.5 parts of-200 order silicon-dioxide; 4.5 parts of-250 order electrofused mullites, 2.5 parts of colloid molybdenumdisulphide, 2.8 parts of 40-60 order crystalline flake graphites; 5.5 parts of-120 order crystalline flake graphites, 4.5 parts of-200 orders sulfuration antimony powders, 10.5 parts in-200 order permanent white.
Embodiment five
A kind of to the little friction materials of mating plate wearing and tearing, said friction materials is made up of following component in weight part: 17 parts of fourth cyanogen modified phenolic resinss, 2.5 parts of aramid fibers; 3.5 parts of aluminum fibers, 8 parts of vermiculite fibers, 6 parts of calcium carbonate crystal whiskers, 5 parts of-200 order silicon-dioxide; 4 parts of-250 order electrofused mullites, 3 parts of colloid molybdenumdisulphide, 2.5 parts of 40-60 order crystalline flake graphites; 6 parts of-120 order crystalline flake graphites, 4 parts of-200 orders sulfuration antimony powders, 11 parts in-200 order permanent white.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.

Claims (3)

1. one kind little to mating plate wearing and tearing friction materials is characterized in that said friction materials is made up of following component in weight part: fourth cyanogen modified phenolic resins 16-18 part; Aramid fiber 2-3 part, aluminum fiber 3-5 part, vermiculite fiber 7-9 part, calcium carbonate crystal whisker 5-7 part;-200 order silicon-dioxide 4-6 parts ,-250 order electrofused mullite 3-5 parts, colloid molybdenumdisulphide 2-4 part; 40-60 order crystalline flake graphite 2-3 part;-120 order crystalline flake graphite 5-7 parts ,-200 orders sulfuration antimony powder 3-5 part ,-200 order permanent white 10-12 parts.
2. as claimed in claim 1 a kind of to the little friction materials of mating plate wearing and tearing, it is characterized in that said friction materials is made up of following component in weight part: fourth cyanogen modified phenolic resins 16.5-17.5 part; Aramid fiber 2.2-2.8 part, aluminum fiber 3.5-4.5 part, vermiculite fiber 7.5-8.5 part, calcium carbonate crystal whisker 5.5-6.5 part;-200 order silicon-dioxide 4.5-5.5 parts ,-250 order electrofused mullite 3.5-4.5 parts, colloid molybdenumdisulphide 2.5-3.5 part; 40-60 order crystalline flake graphite 2.2-2.8 part;-120 order crystalline flake graphite 5.5-6.5 parts ,-200 orders sulfuration antimony powder 3.5-4.5 part ,-200 order permanent white 10.5-11.5 parts.
3. described a kind of to the little friction materials of mating plate wearing and tearing like claim 1-2, it is characterized in that said friction materials is made up of following component in weight part: 17 parts of fourth cyanogen modified phenolic resinss; 2.5 parts of aramid fibers, 4 parts of aluminum fibers, 8 parts of vermiculite fibers, 6 parts of calcium carbonate crystal whiskers; 5 parts of-200 order silicon-dioxide, 4 parts of-250 order electrofused mullites, 3 parts of colloid molybdenumdisulphide; 2.5 parts of 40-60 order crystalline flake graphites; 6 parts of-120 order crystalline flake graphites, 4 parts of-200 orders sulfuration antimony powders, 11 parts in-200 order permanent white.
CN201210305791.XA 2012-08-24 2012-08-24 Friction material slightly wearing mating plate Expired - Fee Related CN102807844B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104087245A (en) * 2014-07-01 2014-10-08 北京瑞斯福高新科技股份有限公司 Friction material for brake-shoe of heavy axle-load wagon and preparation method of friction material
CN111995925A (en) * 2020-08-12 2020-11-27 东风商用车有限公司 Anticorrosion and anti-loose treatment method for surface coating of fastening connection of metal piece

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676577A (en) * 1994-08-02 1997-10-14 Borg-Warner Automotive, Inc. Friction lining materials
CN1468890A (en) * 2003-06-12 2004-01-21 山东大学 Carbon fiber reinforced friction material and its prepn
CN101113204A (en) * 2007-07-17 2008-01-30 李军魂 Formula of ceramic radical friction material for automobile braking friction facing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676577A (en) * 1994-08-02 1997-10-14 Borg-Warner Automotive, Inc. Friction lining materials
CN1468890A (en) * 2003-06-12 2004-01-21 山东大学 Carbon fiber reinforced friction material and its prepn
CN101113204A (en) * 2007-07-17 2008-01-30 李军魂 Formula of ceramic radical friction material for automobile braking friction facing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104087245A (en) * 2014-07-01 2014-10-08 北京瑞斯福高新科技股份有限公司 Friction material for brake-shoe of heavy axle-load wagon and preparation method of friction material
CN111995925A (en) * 2020-08-12 2020-11-27 东风商用车有限公司 Anticorrosion and anti-loose treatment method for surface coating of fastening connection of metal piece

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