CN102634320A - Material of high-wear-resistance ceramic automobile brake block and preparation method thereof - Google Patents
Material of high-wear-resistance ceramic automobile brake block and preparation method thereof Download PDFInfo
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- CN102634320A CN102634320A CN2012101064092A CN201210106409A CN102634320A CN 102634320 A CN102634320 A CN 102634320A CN 2012101064092 A CN2012101064092 A CN 2012101064092A CN 201210106409 A CN201210106409 A CN 201210106409A CN 102634320 A CN102634320 A CN 102634320A
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Abstract
The invention discloses a material of a high-wear-resistance ceramic automobile brake block, and preparation and molding methods of the material. The material of the high-wear-resistance ceramic automobile brake block comprises the following components in percentage by weight: 7-10% of cryolite, 1.5-2% of ferric sulfide, 1-3% of iron oxide red, 2.5-4% of iron oxide black, 9-12% of barite, 16-18% of binding agent, and the balance of high-titanium bauxite homogenized material composed of bauxite and titanium dioxide. According to the material disclosed by the invention, a multi-component friction modifying agent and a filler are added, the adding amount of each component is optimized and the grain diameter of powder is optimized, so as to adjust friction and abrasion behaviors; and a resin bonding agent is used for compounding a plurality of the functional components with a steel back to sufficiently express the synergistic effect of each component. The high-wear-resistance ceramic automobile brake block prepared by the material and the method disclosed by the invention is an environment-friendly friction material and has the advantages of low noise, high friction coefficient, small heat fading, long service life, small damages to mating plates and the like.
Description
Technical field
The present invention relates to a kind of material of high abrasion ceramic automobile brake block, also related to this preparation methods.
Background technology
Brake facing is the vital part of brake system of car, and the over-all properties of brake facing is directly connected to the stability and the safety of breaking system.Brake pad material mainly is divided into by the prescription difference: asbestos type, semipermanent mold and do not have three kinds of asbestos organic composite types (NAO type).Obviously " heat fading " phenomenon appears in asbestos base brake facing can progressively losing crystal water more than 400 ℃, cause that frictional property is unstable, working layer is rotten, wear rate increases and shorten work-ing life.Simultaneously, asbestos base brake facing does not meet environmental requirement, and the GB12676-1999 standard has banned use of asbestos.Semimetal friction material has advantages such as frictional coefficient height, thermal conductivity is good, machine-shaping is easy, but has following problem: density is big, and steel fiber is prone to get rusty, and is prone to adhesion and damage mating plate after the corrosion, and product strength reduction, wearing and tearing strengthen after the corrosion; Higher hardness can be damaged mating material, produces chatter and brake noise.No asbestos organic composite type brake facing can both keep good braking effect under low temperature and high temperature, have greater advantage aspect abrasion resistance and the reduction noise.Along with the fast development of Hyundai Motor and the raising of environmental consciousness, increasingly high requirement has been proposed all for the material and the ME of brake pad material.Ceramic brake is made up of ceramic phase, nonferrous packing material, tackiness agent and a small amount of metallic constituent element; Have stable friction performance, wear rate is low, proportion is little, hardness is big, chemicalstability is good, corrosion-resistant, noiselessness, nothing fall ash, do not corrode series of advantages such as wheel hub, long service life and environmental protection, is an important directions of high-performance automobile braking piece research.The high abrasion ceramic automobile brake block has vast market prospect in China, but because its manufacturing cost is high, is mainly used at present on the medium-to-high grade car, and dependence on import.
Summary of the invention
The technical problem that the present invention will solve is:, high temperature friction unstable properties lower to existing automobile brake sheet wear resisting property and the not high problem of heat resistanceheat resistant decline performance, providing a kind of is the high abrasion ceramic automobile brake block material and preparation method thereof of main raw material with inexpensive bauxitic clay.
Technical scheme of the present invention:
Material prescription: a kind of high abrasion ceramic automobile brake block material, according to quality percentage meter, each components contents is: sodium aluminum fluoride: 7 ~ 10%; Iron sulphide: 1.5 ~ 2%; Iron oxide red: 1 ~ 3%, the iron oxide black: 2.5 ~ 4%, tiff: 9 ~ 12%; Tackiness agent: 16 ~ 18%, surplus is the high titanium bauxitic clay homogeneous material of being made up of bauxitic clay and titanium oxide.
Tackiness agent comprises two kinds of liquid resin and powdered resins: liquid resin is one or more in liquid phenolic resin, furane resin, the polybutadiene; Powdered resin is one or more in boron bakelite resin, cashew nut oil modified alkyd resin, the cyanurotriamide modified resol of cashew nut shell oil.
Each component granularity is respectively: sodium aluminum fluoride :≤200 orders, iron sulphide :≤200 orders, iron oxide red :≤180 orders, iron oxide black :≤200 orders, tiff :≤240 orders, high titanium bauxitic clay homogeneous material :≤50 orders.
High titanium bauxitic clay homogeneous material is by the mixed powder after 80 orders＜particle diameter≤50 orders, 200 orders＜particle diameter≤80 orders and particle diameter≤three kinds of particulate material of 200 purposes are arranged in pairs or groups; Its 80 orders＜particle diameter≤50 purpose particulate material account for 25 ~ 45wt.%; 200 orders＜particle diameter≤80 purpose particulate material account for 35 ~ 55wt.%, and particle diameter≤200 purpose particulate material account for 10 ~ 30 wt.%.
The preparation method may further comprise the steps:
Step 1, the high titanium bauxitic clay processing that homogenizes: at first with bauxitic clay (Al
2O
3Content is 58 ~ 60wt.%) to make particle diameter≤400 purpose raw material powders with the mixed powder fragmentation of titanium oxide, then raw material powder is pressed into and puts into tunnel behind the green compact and calcine, and obtains high titanium bauxitic clay homogeneous material.This homogeneous material is carried out fragmentation make its particle diameter≤50 orders, screening, subsequent use.
Step 2, batching: carry out weigh batching according to claim 1 and 4 pairs of each components;
Step 3, mix: mix in the planetary roller machine of will the said components except that tackiness agent packing into, mixing time is 30 ~ 90 minutes, obtains mixed powder; Then, in mixed powder, add tackiness agent and stir making mixing of materials even in 25 ~ 60 minutes, obtain the premolding material;
Step 4, moulding: premolding material and steel backing are put into mould simultaneously carry out punching press or shaped by fluid pressure, obtain required type shape by steel backing be bonded in the brake facing preform that the friction materials on the steel backing is formed, pressing pressure is 200 ~ 400MPa;
Step 5 is solidified: with the brake facing preform tunnel of packing into, solidified 30 ~ 50 hours in 60 ~ 300 ℃, obtain the brake facing blank;
Step 6, integer: the brake facing blank is finish grinded integer, promptly get the high abrasion ceramic automobile brake block of desired size precision.
In step 1, the mass ratio of bauxitic clay and titanium oxide is 4:1 ~ 6:1.Calcining process is: the preheating zone temperature is 100 ~ 1200 ℃, 5 ~ 8 hours; Burning zone temperature is 1250 ~ 1350 ℃, is incubated 3 ~ 5 hours; At last through cooling zone, naturally cool to normal temperature through behind l0 ~ 15 hour.
Beneficial effect of the present invention:
Utilize calcining bauxitic clay high firmness and high-intensity characteristic its room temperature of performance and high temperature to increase the effect that rubs; Titanium oxide plays the effect that increases toughness, strengthens anti-shear ability as friction modified constituent element; Sodium aluminum fluoride is a friction modifiers, and lubricate can improve job stability, resistance to marring, block resistance and the wear resistance of brake facing, reduces brake noise; Tiff serves as filler, it at high temperature type become the friction transfer film, can stablize frictional coefficient, reduce wearing and tearing.Iron sulphide decomposes under comparatively high temps and type becomes MOX, and wearing and tearing and stable frictional coefficient can fall in the friction transfer film that type becomes; Iron oxide red and iron black porous can reduce brake noise and vibration, also have pigmentation.Boron modified phenolic resin plays bonding and transmitted load, has guaranteed necessary physical strength.
The high abrasion ceramic automobile brake block that uses the present invention to make is a kind of no asbestos type environment-friendly materials, and its proportion is low, wear resisting property is excellent, stable friction factor, heat fading is little, safety is high, braking is steady, noise is little and the life-span is long.In addition, preparation technology is easy, cost is low, be fit to suitability for industrialized production.
Description of drawings:
Fig. 1 is a process flow sheet of the present invention.
Embodiment:
embodiment 1: contain the preparation of the high abrasion ceramic automobile brake block of the high titanium bauxitic clay of 52wt.% homogeneous material.
The mass percent of each component and granularity: 9.5% sodium aluminum fluoride (Na
3AlF
6,≤200 orders), 1.5% iron sulphide (FeS
2,≤200 orders), 3% iron oxide red (Fe
2O
3,≤180 orders), 4% iron oxide black (Fe
3O
4,≤200 orders), 12% tiff (BaSO
4,≤240 orders), 18% tackiness agent, 52% high titanium bauxitic clay homogeneous material mixed powder (≤50 order).
The mass ratio of bauxitic clay and titanium oxide is 4:1 in the high titanium bauxitic clay homogeneous material mixed powder; Wherein coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 35wt.%; Medium grain material (200 orders＜particle diameter≤80 orders) accounts for 45wt.%, and fine particle material (particle diameter≤200 orders) accounts for 20wt.%.
Preparation and moulding are according to following steps:
Step 1, the bauxitic clay processing that homogenizes: with bauxitic clay (Al
2O
3Content is 58 ~ 60wt.%) to make particle diameter≤400 purpose raw material powders with the mixed powder fragmentation of titanium oxide, and wherein the mass ratio of bauxitic clay and titanium oxide is 4:1.Then raw material powder is pressed into and puts into tunnel behind the green compact and calcine, calcining process is: the preheating zone temperature is 100 ~ 1200 ℃, through the time be 5 hours; Burning zone temperature is 1250 ℃, is incubated 3 hours; In cooling zone, after l0 hour, naturally cool to normal temperature, obtain the bauxitic clay homogeneous material.The bauxitic clay homogeneous material is carried out fragmentation, make its particle diameter≤50 orders, wherein coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 35wt.%, and medium grain material (200 orders＜particle diameter≤80 orders) accounts for 45wt.%, and fine particle material (particle diameter≤200 orders) accounts for 20wt.%.。
Step 2, batching:, and be crushed to desired particle size according to each component of prescription weighing of front.
Step 3, mix: each constituent element except that tackiness agent is mixed in the planetary roller machine, and mixing time is 30 minutes, obtains mixed powder.In mixed powder, add the liquid phenolic resin of 5wt.%, stirred 20 minutes, again 13 wt.% boron bakelite resins are put into the stirring of batch mixing pot and made mixing of materials even in 25 minutes, obtain the premolding material.
Step 4, moulding: premolding material and steel backing are put into mould simultaneously and are carried out punching press or shaped by fluid pressure then, obtain the brake facing preform, and pressing pressure is 200MPa.
Step 5 is solidified: with the brake facing preform tunnel of packing into, solidified 36 hours in 270 ℃, obtain the brake facing blank.
Step 5, integer: the brake facing blank is finish grinded integer, promptly get the high abrasion ceramic automobile brake block of desired size precision.
embodiment 2: contain the preparation of the high abrasion ceramic automobile brake block of 55wt.% bauxitic clay homogeneous material.
The mass percent of each component and granularity: 9.4% sodium aluminum fluoride (Na
3AlF
6,≤200 orders), 2% iron sulphide (FeS
2,≤200 orders), 2.6% iron oxide red (Fe
2O
3,≤180 orders), 4% iron oxide black (Fe
3O
4,≤200 orders), 11% tiff (BaSO
4,≤240 orders), 16% tackiness agent, 55% high titanium bauxitic clay homogeneous material mixed powder (≤50 order).The mass ratio of bauxitic clay and titanium oxide is 4:1 in the high titanium bauxitic clay homogeneous material mixed powder; Coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 30wt.%; Medium grain material (200 orders＜particle diameter≤80 orders) accounts for 40wt.%, and fine particle material (particle diameter≤200 orders) accounts for 30wt.%.
Prepare and moulding according to following steps:
Step 1, the bauxitic clay processing that homogenizes: with bauxitic clay (Al
2O
3Content is that 58 ~ 60wt.%) to make particle diameter with the mixed powder fragmentation of titanium oxide be≤400 purpose raw material powders, and wherein the mass ratio of bauxitic clay and titanium oxide is 4:1.Then raw material powder is pressed into and puts into tunnel behind the green compact and calcine, calcining process is: the preheating zone temperature is 150
~1200 ℃, through the time be 6 hours; Burning zone temperature is 1250 ℃, is incubated 4 hours; In cooling zone, after l2 hour, naturally cool to normal temperature, obtain the bauxitic clay homogeneous material.The bauxitic clay homogeneous material is carried out fragmentation, make its particle diameter≤50 orders, wherein coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 30wt.%, and medium grain material (200 orders＜particle diameter≤80 orders) accounts for 40wt.%, and fine particle material (particle diameter≤200 orders) accounts for 30wt.%.
Step 2, batching:, and be crushed to desired particle size according to each component of mass percent weighing of each above-mentioned component.
Step 3, mix: all components except that tackiness agent is mixed in the planetary roller machine, and mixing time is 30 minutes, obtains mixed powder.The liquid phenolic resin of interpolation 4wt.% stirred 10 minutes in mixed powder, added the cashew nut oil modified alkyd resin of 12wt.% again and stir to make mixing of materials even in 35 minutes, obtained the premolding material.
Step 4, moulding: premolding powder and steel backing are put into mould simultaneously carry out punching press or shaped by fluid pressure, obtain the brake facing preform, pressing pressure is 300MPa.
Step 5 is solidified: then, with the brake facing preform tunnel of packing into, solidified 30 hours in 200 ℃, obtain the brake facing blank.
Step 6, integer: the brake facing blank is finish grinded integer, promptly get the high abrasion ceramic automobile brake block of desired size precision.
embodiment 3: contain the preparation of the high abrasion ceramic automobile brake block of 58wt.% bauxitic clay homogeneous material.
The mass percent of each component and granularity: 7.5% sodium aluminum fluoride (Na
3AlF
6,-200 orders), 1.8% iron sulphide (FeS
2,≤200 orders), 2.5% iron oxide red (Fe
2O
3,≤180 orders), 3.2% iron oxide black (Fe
3O
4,≤200 orders), 10% tiff (BaSO
4,≤240 orders), 17% tackiness agent, 58% high titanium bauxitic clay homogeneous material mixed powder (≤50 order).The mass ratio of bauxitic clay and titanium oxide is 5:1 in the high titanium bauxitic clay homogeneous material mixed powder; Coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 30wt.%; Medium grain material (200 orders＜particle diameter≤80 orders) accounts for 50wt.%, and fine particle material (particle diameter≤200 orders) accounts for 20wt.%.
Prepare and moulding according to following steps:
The processing that homogenizes of step 1, bauxitic clay: will bauxitic clay (Al
2O
3Content is 58 ~ 60wt.%) to make particle diameter≤400 purpose raw material powders with the mixed powder fragmentation of titanium oxide, and wherein the mass ratio of bauxitic clay and titanium oxide is 5:1.Then raw material powder is pressed into and puts into tunnel behind the green compact and calcine, calcining process is: the preheating zone temperature is 200 ~ 1200 ℃, through the time be 8 hours; Burning zone temperature is 1350 ℃, is incubated 5 hours; In cooling zone, after l5 hour, naturally cool to normal temperature, obtain high titanium bauxitic clay homogeneous material.This material is carried out fragmentation, make its particle diameter≤50 orders.Prepare the ceramic brake mixed powder by following quality percentage composition: bauxitic clay homogeneous material mixed powder.In the high titanium bauxitic clay homogeneous material mixed powder, coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 30wt.%, and medium grain material (200 orders＜particle diameter≤80 orders) accounts for 50wt.%, and fine particle material (particle diameter≤200 orders) accounts for 20wt.%.
Step 2, batching:, and and be crushed to desired particle size according to each component of mass percent weighing of each above-mentioned component.
Step 3, mix: all components except that tackiness agent is mixed in the planetary roller machine, and mixing time is 30 minutes, obtains mixed powder.In mixed powder, add the polybutadiene of 5wt.%, stirred 20 minutes,, obtain the premolding material again with the cyanurotriamide modified resol of 12wt.% cashew nut shell oil and stir and made mixing of materials even in 30 minutes.
Step 4, moulding: premolding material and steel backing are put into mould simultaneously carry out punching press or shaped by fluid pressure, obtain the brake facing preform, pressing pressure is 400MPa.
Step 5 is solidified: with the brake facing preform tunnel of packing into, solidified 25 hours in 300 ℃, obtain the brake facing blank.
Step 6, integer: the brake facing blank is finish grinded integer, promptly get the high abrasion ceramic automobile brake block of desired size precision.
embodiment 4: contain the preparation of the high abrasion ceramic automobile brake block of 61wt.% bauxitic clay homogeneous material.
The mass percent of each component and granularity: 8% sodium aluminum fluoride (Na
3AlF
6,≤200 orders), 1.5% iron sulphide (FeS
2,≤200 orders), 1.5% iron oxide red (Fe
2O
3,≤180 orders), 2.5% iron oxide black (Fe
3O
4,≤200 orders), 9.5% tiff (BaSO
4,≤240 orders), 16% tackiness agent, 61% high titanium bauxitic clay homogeneous material mixed powder (≤50 order).The mass ratio of bauxitic clay and titanium oxide is 6:1 in the high titanium bauxitic clay homogeneous material mixed powder; Coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 45wt.%; Medium grain material (200 orders＜particle diameter≤80 orders) accounts for 40wt.%, and fine particle material (particle diameter≤200 orders) accounts for 15wt.%.
Prepare and moulding according to following steps:
Step 1, the bauxitic clay processing that homogenizes: with bauxitic clay (Al
2O
3Content be 58 ~ 60wt.%) and the mixed powder fragmentation of titanium oxide make particle diameter≤400 purpose raw material powders, wherein the mass ratio of bauxitic clay and titanium oxide is 6:1.Then raw material powder is pressed into and puts into tunnel behind the green compact and calcine, calcining process is: the preheating zone temperature is 180 ~ 1200 ℃, through the time be 7 hours; Burning zone temperature is 1300 ℃, is incubated 4 hours; In cooling zone, after l3 hour, naturally cool to normal temperature, obtain high titanium bauxitic clay homogeneous material.This homogeneous material is carried out fragmentation, make its particle diameter≤50 orders, wherein coarse particles material (80 orders＜particle diameter≤50 orders) accounts for 45wt.%, and medium grain material (200 orders＜particle diameter≤80 orders) accounts for 40wt.%, and fine particle material (particle diameter≤200 orders) accounts for 15wt.%.
Step 2, batching:, and and be crushed to desired particle size according to each component of mass percent weighing of each above-mentioned component.
Step 3, mix: all components except that tackiness agent is mixed in the planetary roller machine, and mixing time is 30 minutes, obtains mixed powder.The furane resin that in mixed powder, add 4.5wt.% stir, and again with the 11.5wt.% boron bakelite resin and stir and made mixing of materials even in 45 minutes, obtain the premolding powder.
Step 4, moulding: premolding powder and steel backing are put into mould simultaneously carry out punching press or shaped by fluid pressure, obtain the brake facing preform, pressing pressure is 300Mpa.
Step 5 is solidified: with the brake facing preform tunnel of packing into, solidified 40 hours in 250 ℃, obtain the brake facing blank.
Step 6, integer: the brake facing blank is finish grinded integer, promptly get the high abrasion ceramic automobile brake block of desired size precision.
Claims (6)
1. high abrasion ceramic automobile brake block material, it is characterized in that: according to quality percentage meter, each components contents is: sodium aluminum fluoride: 7 ~ 10%; Iron sulphide: 1.5 ~ 2%; Iron oxide red: 1 ~ 3%, the iron oxide black: 2.5 ~ 4%, tiff: 9 ~ 12%; Tackiness agent: 16 ~ 18%, surplus is the high titanium bauxitic clay homogeneous material of being made up of bauxitic clay and titanium oxide.
2. high abrasion ceramic automobile brake block material according to claim 1 is characterized in that: tackiness agent comprises two kinds of liquid resin and powdered resins: liquid resin is one or more in liquid phenolic resin, furane resin, the polybutadiene; Powdered resin is one or more in boron bakelite resin, cashew nut oil modified alkyd resin, the cyanurotriamide modified resol of cashew nut shell oil.
3. high abrasion ceramic automobile brake block material according to claim 1 is characterized in that: each component granularity is respectively: sodium aluminum fluoride :≤200 orders, iron sulphide :≤200 orders; Iron oxide red :≤180 orders; Iron black :≤200 orders, tiff :≤240 orders, high titanium bauxitic clay homogeneous material :≤50 orders.
4. high abrasion ceramic automobile brake block material according to claim 3; It is characterized in that: high titanium bauxitic clay homogeneous material is by the mixed powder after 80 orders＜particle diameter≤50 orders, 200 orders＜particle diameter≤80 orders and particle diameter≤three kinds of particulate material of 200 purposes are arranged in pairs or groups; Wherein 80 orders＜particle diameter≤50 purpose particulate material account for 25 ~ 45%; 200 order ﹤ particle diameters≤80 purpose particulate material account for 35 ~ 55%, and particle diameter≤200 purpose particulate material account for 10 ~ 30 %.
5. one kind like each described high abrasion ceramic automobile brake block preparation methods of claim 1 ~ 4, it is characterized in that:
Step 1; The processing that homogenizes of high titanium bauxitic clay: at first the mixed powder fragmentation with bauxitic clay and titanium oxide makes particle diameter≤400 purpose raw material powders; Then raw material powder is pressed into put into tunnel behind the green compact and calcine, obtain high titanium bauxitic clay homogeneous material, this homogeneous material is carried out fragmentation make its particle diameter≤50 orders; Screening, subsequent use;
Step 2, batching;
Step 3, mix: mix in the planetary roller machine of will the said components except that tackiness agent packing into, mixing time is 30 ~ 90 minutes, obtains mixed powder; Then, in mixed powder, add tackiness agent and stir making mixing of materials even in 25 ~ 60 minutes, obtain the premolding material;
Step 4, moulding: premolding material and steel backing are put into mould simultaneously carry out punching press or shaped by fluid pressure, obtain required type shape by steel backing be bonded in the brake facing preform that the friction materials on the steel backing is formed, pressing pressure is 200 ~ 400MPa;
Step 5 is solidified: with the brake facing preform tunnel of packing into, solidified 30 ~ 50 hours in 60 ~ 300 ℃, obtain the brake facing blank;
Step 6, integer: the brake facing blank is finish grinded integer, promptly get the high abrasion ceramic automobile brake block of desired size precision.
6. high abrasion ceramic automobile brake block preparation methods according to claim 5 is characterized in that: in step 1, the mass ratio of bauxitic clay and titanium oxide is 4:1 ~ 6:1, and calcining process is: the preheating zone temperature is 100 ~ 1200 ℃, 5 ~ 8 hours; Burning zone temperature is 1250 ~ 1350 ℃, is incubated 3 ~ 5 hours; At last through cooling zone, naturally cool to normal temperature through behind l0 ~ 15 hour.
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|---|---|---|---|
| CN201210106409.2A CN102634320B (en) | 2012-04-12 | 2012-04-12 | Material of high-wear-resistance ceramic automobile brake block and preparation method thereof |
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|---|---|---|---|
| CN201210106409.2A CN102634320B (en) | 2012-04-12 | 2012-04-12 | Material of high-wear-resistance ceramic automobile brake block and preparation method thereof |
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| CN102634320B CN102634320B (en) | 2014-07-30 |
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| CN102980536A (en) * | 2012-11-13 | 2013-03-20 | 上海交通大学 | Brake pad steel backing planeness detecting system and method thereof |
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| CN105108662A (en) * | 2015-08-26 | 2015-12-02 | 万山特区宏安摩擦材料有限公司 | Modifying method of phenolic resin for ceramic friction material and preparation method of ceramic friction material |
| CN107573062A (en) * | 2017-08-28 | 2018-01-12 | 天宜上佳（天津）新材料有限公司 | Ceramic material with heat-proof quality and the ceramic aluminum alloy brake disc and preparation method with its preparation |
| JP2021031582A (en) * | 2019-08-23 | 2021-03-01 | 株式会社アドヴィックス | Friction material and friction material composition |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980536A (en) * | 2012-11-13 | 2013-03-20 | 上海交通大学 | Brake pad steel backing planeness detecting system and method thereof |
| CN102980536B (en) * | 2012-11-13 | 2015-10-14 | 上海交通大学 | Brake block steel back flatness detection system and method |
| CN104625980A (en) * | 2013-11-14 | 2015-05-20 | 江苏华东砂轮有限公司 | Precise grinding wheel for grinding rollers and manufacturing method for precise grinding wheel |
| CN104625980B (en) * | 2013-11-14 | 2018-06-05 | 江苏华东砂轮有限公司 | A kind of accurate mill roller abrasive wheel and preparation method thereof |
| CN105108662A (en) * | 2015-08-26 | 2015-12-02 | 万山特区宏安摩擦材料有限公司 | Modifying method of phenolic resin for ceramic friction material and preparation method of ceramic friction material |
| CN107573062A (en) * | 2017-08-28 | 2018-01-12 | 天宜上佳（天津）新材料有限公司 | Ceramic material with heat-proof quality and the ceramic aluminum alloy brake disc and preparation method with its preparation |
| CN107573062B (en) * | 2017-08-28 | 2023-08-01 | 天宜上佳（天津）新材料有限公司 | Ceramic material with heat insulation performance, ceramic-aluminum alloy brake disc prepared from ceramic material and preparation method of ceramic material |
| JP2021031582A (en) * | 2019-08-23 | 2021-03-01 | 株式会社アドヴィックス | Friction material and friction material composition |
| WO2021039534A1 (en) * | 2019-08-23 | 2021-03-04 | 株式会社アドヴィックス | Friction material and friction material composition |
| CN114341308A (en) * | 2019-08-23 | 2022-04-12 | 株式会社爱德克斯 | Friction material and friction material composition |
| JP7358843B2 (en) | 2019-08-23 | 2023-10-11 | 株式会社アドヴィックス | Friction materials and friction material compositions |
| CN114341308B (en) * | 2019-08-23 | 2023-10-13 | 株式会社爱德克斯 | Friction material and friction material composition |
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| CN102634320B (en) | 2014-07-30 |
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