CN103589391B - A kind of friction materials of high-strength brake block - Google Patents
A kind of friction materials of high-strength brake block Download PDFInfo
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- CN103589391B CN103589391B CN201310467233.8A CN201310467233A CN103589391B CN 103589391 B CN103589391 B CN 103589391B CN 201310467233 A CN201310467233 A CN 201310467233A CN 103589391 B CN103589391 B CN 103589391B
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Abstract
The invention discloses a kind of friction materials of high-strength brake block; in order to play the performance of its high strength, wear resistance, heat impedance and protection contact component wearing and tearing; with the addition of crystalline flake graphite, potassium felspar sand, steel wool fiber, Effect of Organosilicon-modified Phenol-formaldehyde Resin, eight potassium titanates, antimony sulfide and three vanadium oxides in friction materials; be distributed in friction materials by individual homogenize material, reach the perfect adaptation of the performances such as performance, wear resistance, heat impedance.
Description
Technical field
The present invention relates to a kind of breaking system technical field, particularly a kind of friction materials of high-strength brake block.
Background technology
Friction materials is a kind of on power machine, relies on the component materials being used for performing braking and transmission agency according to friction.The various vehicles of any mechanical means motion all must have braking or transmission mechanism, the particularly big machinery such as aircraft, friction materials is the critical piece on this braking or transmission mechanism, its major function carrys out consumption of power by friction, and mechanical means or various Motor vehicles can be made to work safely and reliably.
Now numerous for the friction materials of brake facing, the most frequently used is metal mixed material and stupalith, the patent of invention " Yaw brake block " that metal mixed material is 200810068968.2 as number of patent application discloses a kind of brake facing friction layer be made up of iron powder, copper powder, graphite, quartz sand, silicon carbide etc., feature is that the metal content of this friction layer is high, wear resistance and hardness good, shortcoming is that frictional coefficient is not high, and due to hardness too hard, can cause a small amount of wearing and tearing to contact component, life-time service damages parts; Stupalith such as such as number of patent application is the high-abrasive material that the patent of invention of 201310115341.9 " a kind of Wear-resistant material for brake pad " discloses a kind of flyash, modified phenolic resins, resin, zircon, calcined coke, barium sulfate, synthetic graphite and coupling agent and forms, the feature such as feature is that carbon content is high, void content is high, stablize frictional coefficient, thermal conductivity is low, shortcoming is: hardness is little, and character of heat-fading during high temperature is strong.
Summary of the invention
In order to solve the problem, the invention provides a kind of friction materials of high-strength brake block, not only increase the frictional coefficient of friction materials, while improving wear resistance, reduce the wearing and tearing to contact component simultaneously, the heat impedance of this material is very good simultaneously, is applicable to high-strength high-temperature environmental work.
The present invention is by following realization:
A friction materials for high-strength brake block, its feature exists: it is characterized in that the material that friction layer comprises is made up of iron powder, crystalline flake graphite, potassium felspar sand, steel wool fiber, Effect of Organosilicon-modified Phenol-formaldehyde Resin, eight potassium titanates and antimony sulfide.
Further, in order to increase the intensity of this friction materials, described friction layer material is also containing three vanadium oxides.
Further, in order to balance the wear intensity of the performance of friction materials, durability and contact component, the weight percent of described friction layer material prescription is: iron powder 30 ~ 55, crystalline flake graphite 8 ~ 20, potassium felspar sand 6 ~ 14, steel wool fiber 7 ~ 17, Effect of Organosilicon-modified Phenol-formaldehyde Resin 5 ~ 15, eight potassium titanate 4 ~ 12, antimony sulfide 1 ~ 6 and three vanadium oxides 0.1 ~ 2.
Further, in order to balance the wear intensity of the performance of friction materials, durability and contact component, the weight percent of described friction layer material prescription is: iron powder 40 ~ 50, crystalline flake graphite 10 ~ 18, potassium felspar sand 8 ~ 12, steel wool fiber 8 ~ 13, Effect of Organosilicon-modified Phenol-formaldehyde Resin 7 ~ 12, eight potassium titanate 5 ~ 10, antimony sulfide 2 ~ 5 and three vanadium oxides 0.2 ~ 1.
Further, in order to balance the wear intensity of the performance of friction materials, durability and contact component, the weight percent of described friction layer material prescription is: iron powder 45, crystalline flake graphite 15, potassium felspar sand 10, steel wool fiber 10, Effect of Organosilicon-modified Phenol-formaldehyde Resin 9, eight potassium titanate 7, antimony sulfide 3.5 and three vanadium oxides 0.5.
Further, in order to balance the wear intensity of the performance of friction materials, durability and contact component, the weight percent of described friction layer material prescription is: iron powder 48, crystalline flake graphite 10, potassium felspar sand 9, steel wool fiber 12, Effect of Organosilicon-modified Phenol-formaldehyde Resin 11, eight potassium titanate 5, antimony sulfide 4 and three vanadium oxides 1.
Beneficial effect of the present invention is: the intensity being improved friction materials by potassium felspar sand and three vanadium oxides, strengthens the wear resistance of friction materials, reduces the wear intensity of friction materials; Strengthened heat impedance and the degree of adhesion of friction materials by steel wool fiber and Effect of Organosilicon-modified Phenol-formaldehyde Resin, avoid the braking ability hour that Yin Gaowen causes; Increased the frictional coefficient of friction materials by iron powder, potassium felspar sand and eight potassium titanates, enable contact component realize braking function rapidly; By the use of crystalline flake graphite and antimony sulfide, have lubricated contact component as much as possible, reduce the wear intensity of contact component to greatest extent.
Embodiment
Below in conjunction with concrete embodiment, this technology is described in detail.
Embodiment one
A friction materials for high-strength brake block, containing iron powder 45, crystalline flake graphite 15, potassium felspar sand 10, steel wool fiber 10, Effect of Organosilicon-modified Phenol-formaldehyde Resin 9, eight potassium titanate 7, antimony sulfide 3.5 and three vanadium oxides 0.5.Wherein the carbon content of crystalline flake graphite is 80 ~ 90%, plays the effect of protection contact component, decrease the wearing and tearing contacting not parts in friction materials; The density 2.54-2.57g/cm3 of potassium felspar sand, proportion 2.56 ~ 2.59g/cm3, hardness 6, is added in friction materials, can strengthen its intensity; Steel wool fiber is applicable to the toughener of friction resistance material, engineering plastics, pottery, refractory materials etc., is also applicable to the purposes such as sound-absorbing, noise reduction, is added in friction materials the degree of adhesion and heat impedance that are conducive to improving friction materials; Effect of Organosilicon-modified Phenol-formaldehyde Resin has excellent mechanical performances, resistance toheat, and chemical stability is good, and thermotolerance is high, shrinks little during sclerosis, and product size is stablized.Cohesive strength improves more than 20% than resol, is added in friction materials, enhances its degree of adhesion and heat impedance; Eight potassium titanates are used for the fields such as the strongthener of seal friction material, plastics, light metal etc., special anticorrosive coating and economical refractory material, and as friction materials compared with asbestos, frictional force about reduces by 50%, and amount of friction about reduces 32%; The fusing point of antimony sulfide is 550 DEG C, in high-strength high-temperature active, is easy to reach this temperature, and the antimony sulfide of thawing just in time can reach the lubrication protection effect to contact component; Three vanadium oxides add in friction materials and strengthen its hardness, be disclose same material in the test example of the patent of invention " superhard material and instrument thereof " of 200880010413.0 to add after massfraction is 0.5% 3 vanadium oxide at number of patent application, Vickers' hardness increases by 180.
In use, noise is little for the friction materials of the high-strength brake block that the present embodiment produces, and frictional property, wear resistance and heat impedance are good.
Embodiment two
A friction materials for high-strength brake block, containing iron powder 48, crystalline flake graphite 10, potassium felspar sand 9, steel wool fiber 12, Effect of Organosilicon-modified Phenol-formaldehyde Resin 11, eight potassium titanate 5, antimony sulfide 4 and three vanadium oxides 1.Wherein the carbon content of crystalline flake graphite is 80 ~ 90%, plays the effect of protection contact component, decrease the wearing and tearing contacting not parts in friction materials; The density 2.54-2.57g/cm3 of potassium felspar sand, proportion 2.56 ~ 2.59g/cm3, hardness 6, is added in friction materials, can strengthen its intensity; Steel wool fiber is applicable to the toughener of friction resistance material, engineering plastics, pottery, refractory materials etc., is also applicable to the purposes such as sound-absorbing, noise reduction, is added in friction materials the degree of adhesion and heat impedance that are conducive to improving friction materials; Effect of Organosilicon-modified Phenol-formaldehyde Resin has excellent mechanical performances, resistance toheat, and chemical stability is good, and thermotolerance is high, shrinks little during sclerosis, and product size is stablized.Cohesive strength improves more than 20% than resol, is added in friction materials, enhances its degree of adhesion and heat impedance; Eight potassium titanates are used for the fields such as the strongthener of seal friction material, plastics, light metal etc., special anticorrosive coating and economical refractory material, and as friction materials compared with asbestos, frictional force about reduces by 50%, and amount of friction about reduces 32%; The fusing point of antimony sulfide is 550 DEG C, in high-strength high-temperature active, is easy to reach this temperature, and the antimony sulfide of thawing just in time can reach the lubrication protection effect to contact component; Three vanadium oxides add in friction materials and strengthen its hardness, be disclose same material in the test example of the patent of invention " superhard material and instrument thereof " of 200880010413.0 to add after massfraction is 0.5% 3 vanadium oxide at number of patent application, Vickers' hardness increases by 180.
In use, noise is little for the friction materials of the high-strength brake block that the present embodiment produces, and frictional property, wear resistance and heat impedance are good.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its objective is to allow and be familiar with these those skilled in the art and can understand content of the present invention implementing according to this; can not limit the scope of the invention with this; all according to the present invention spirit essence done by equivalents or modification, all should contain in protection scope of the present invention.
Claims (4)
1. a friction materials for high-strength brake block, its feature exists: the weight percent of described friction layer material prescription is: iron powder 30 ~ 55, crystalline flake graphite 8 ~ 20, potassium felspar sand 6 ~ 14, steel wool fiber 7 ~ 17, Effect of Organosilicon-modified Phenol-formaldehyde Resin 5 ~ 15, eight potassium titanate 4 ~ 12, antimony sulfide 1 ~ 6 and three vanadium oxides 0.1 ~ 2.
2. the friction materials of high-strength brake block according to claim 1, is characterized in that the weight percent of described friction layer material prescription is: iron powder 40 ~ 50, crystalline flake graphite 10 ~ 18, potassium felspar sand 8 ~ 12, steel wool fiber 8 ~ 13, Effect of Organosilicon-modified Phenol-formaldehyde Resin 7 ~ 12, eight potassium titanate 5 ~ 10, antimony sulfide 2 ~ 5 and three vanadium oxides 0.2 ~ 1.
3. the friction materials of high-strength brake block according to claim 1 and 2, is characterized in that the weight percent of described friction layer material prescription is: iron powder 45, crystalline flake graphite 15, potassium felspar sand 10, steel wool fiber 10, Effect of Organosilicon-modified Phenol-formaldehyde Resin 9, eight potassium titanate 7, antimony sulfide 3.5 and three vanadium oxides 0.5.
4. the friction materials of high-strength brake block according to claim 1 and 2, is characterized in that the weight percent of described friction layer material prescription is: iron powder 48, crystalline flake graphite 10, potassium felspar sand 9, steel wool fiber 12, Effect of Organosilicon-modified Phenol-formaldehyde Resin 11, eight potassium titanate 5, antimony sulfide 4 and three vanadium oxides 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310467233.8A CN103589391B (en) | 2013-10-09 | 2013-10-09 | A kind of friction materials of high-strength brake block |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310467233.8A CN103589391B (en) | 2013-10-09 | 2013-10-09 | A kind of friction materials of high-strength brake block |
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| CN103589391A CN103589391A (en) | 2014-02-19 |
| CN103589391B true CN103589391B (en) | 2015-08-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104482087B (en) * | 2014-12-11 | 2017-02-01 | 烟台孚瑞克森汽车部件有限公司 | Non-fired friction coating for brake pad coating and preparing method of non-fired friction coating |
| CN106433013B (en) * | 2016-08-29 | 2019-01-11 | 贵州新安航空机械有限责任公司 | A kind of high-power locomotive Composition brake shoes friction material and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816708A1 (en) * | 1996-07-01 | 1998-01-07 | Honda Giken Kogyo Kabushiki Kaisha | Friction material |
| CN102250583A (en) * | 2011-05-21 | 2011-11-23 | 瑞阳汽车零部件（仙桃）有限公司 | Less-copper friction material composition for brake block |
| CN103119120A (en) * | 2010-11-19 | 2013-05-22 | 日立化成株式会社 | Non-asbestos friction material composition, and friction material and friction member using same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009052071A (en) * | 2007-08-24 | 2009-03-12 | Mitsubishi Heavy Ind Ltd | Superhard material and tool |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816708A1 (en) * | 1996-07-01 | 1998-01-07 | Honda Giken Kogyo Kabushiki Kaisha | Friction material |
| CN103119120A (en) * | 2010-11-19 | 2013-05-22 | 日立化成株式会社 | Non-asbestos friction material composition, and friction material and friction member using same |
| CN102250583A (en) * | 2011-05-21 | 2011-11-23 | 瑞阳汽车零部件（仙桃）有限公司 | Less-copper friction material composition for brake block |
| WO2012159284A1 (en) * | 2011-05-21 | 2012-11-29 | 瑞阳汽车零部件（仙桃）有限公司 | Low copper-containing friction material composition used as brake pad |
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