CN101205456A - Method for preparing brake block by calcium carbonate crystal whisker - Google Patents
Method for preparing brake block by calcium carbonate crystal whisker Download PDFInfo
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- CN101205456A CN101205456A CNA2007101147874A CN200710114787A CN101205456A CN 101205456 A CN101205456 A CN 101205456A CN A2007101147874 A CNA2007101147874 A CN A2007101147874A CN 200710114787 A CN200710114787 A CN 200710114787A CN 101205456 A CN101205456 A CN 101205456A
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- calcium carbonate
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- crystal whisker
- carbonate crystal
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Abstract
The invention relates to a method for preparing a brake sheet through adopting calcium carbonate crystal whisker, belonging to the friction material field, wherein the following raw materials of corresponding part by weight are adopted: 5 to 15 portions of adhesive which adopts phenol formaldehyde resin, 20 to 30 portions of reinforcing material which is obtained through mixing steel fiber or ceramic fiber with one or several of aramid fiber, mineral fiber and glass fiber, 1 to 15 portions of grinding agent which comprises one or combination of several of aluminum sesquioxide, ferric oxide, magnesium oxide and friction powder, 5 to 15 portions of lubricant which comprises one or combination of several of graphite, molybdenum disulfide and mica, 5 to 15 portions of stabilizer calcium carbonate crystal whisker, and 30 to 50 portions of filler which comprises one or combination of several of barium sulfate, potassium titanate and magnesium oxide. The brake sheet, which is made through the method, can effectively increase porosity and improve the high-temperature resistance of material, thereby lowering the decomposition rate of organic material at a high temperature; meanwhile, the brake sheet can slow down the gaseous escape speed on a friction surface during fading, thereby reducing fading rate and the change rate of friction coefficient at high speed to less than 10 percent.
Description
Technical field
The present invention relates to the method that a kind of calcium carbonate crystal whisker in the friction material field is used to prepare brake facing.
Background technology
Present stage China's automobile with friction materials based on semi-metal, account for more than 70% of ultimate production, but semimetal friction material exists product density big, easy-to-rust, easy scratch antithesis, and in use easily produce shortcomings such as low frequency noise, can not satisfy people's requirement more and more higher to the friction materials product.Its upgraded product ceramic-based friction material has overcome the shortcoming of semi-metal prescription, stable friction factor, and the braking comfortableness is good in the use, and long service life becomes the development trend of friction materials.The essentially consist of brake facing is except binding agent, and fortifying fibre beyond the filler, also has the very important material of a class---frictional property regulator, comprises abrasive, lubricant, stablizer.---hot-forming---grinding------oven dry---installation accessories---the seal mark encapsulation of spraying paint that conventional complete processing is as follows: batch mixing.
The key distinction of above-mentioned two kinds of technology is that fortifying fibre selects the steel fiber or the difference of ceramic fiber for use.Because high temperature decline and high stability are brake facing two big vital performance requriementss, it directly affects braking safety and comfort.Though can improve decline to a certain extent by thermal ablation technology, can not address this problem, and also easy other the problem together of ablating, such as: shearing force descends, easily flake; The homogeneity of ablating; And consistency of product etc.
Summary of the invention
The purpose that calcium carbonate crystal whisker of the present invention is used for preparing the method for brake facing is: adopt this special stable friction performance agent of calcium carbonate crystal whisker in raw material side, change the internal structure of brake facing, improve the void content of brake facing, increase its intensity, thereby make brake facing when High Temperature And Velocity, performance is more stable, improves comfort level.
Technical solution of the present invention is made up of the raw material of following weight part: caking agent 5～15, adopt resol; Strongthener 20～30 is to mix with one or more of steel fiber or ceramic fiber and aramid fiber, mineral fibre, glass fibre; Abrasive 1～15 comprises the one or more combination of aluminium sesquioxide, ferric oxide, magnesium oxide, friction powder; Lubricant 5～15 comprises graphite, molybdenumdisulphide, micaceous one or more combination; Stablizer calcium carbonate crystal whisker 5-15; Filler 30～50 comprises barium sulfate, potassium titanate, magnesian one or more combination.Described resol comprises a kind of of unmodified resol or silicon modified phenolic resins, butyronitrile remodeling resol.
The brake facing that this scheme is produced, can improve void content effectively, improve the high thermal resistance of material, reduce the rate of decomposition of organic materials when high temperature, the effusion speed of the gas of friction surface in the time of simultaneously can reducing to fail, thus the velocity of variation of frictional coefficient is reduced in 10% when making fading rate and high speed.
Embodiment
Problem at prior art exists according to summary of the invention, has designed two assembly sides (A prescription and B prescription) and has tested, and experimental program and experimental result are as follows:
| Prescription A | Prescription B | |||
| Prescription is formed | Title material | Weight part | Title material | Weight part |
| Nbr modified phenolic resins | 10 | The silicon modified phenolic resins | 12 | |
| Steel fiber, aramid pulp | 22 | Ceramic fiber, aramid pulp | 28 | |
| Ferric oxide, aluminium sesquioxide | 5 | The friction powder, aluminium sesquioxide | 10 | |
| Graphite, cupric sulfide | 15 | Graphite, cupric sulfide, mica | 10 | |
| Calcium carbonate crystal whisker | 10 | Calcium carbonate crystal whisker | 10 | |
| Barium sulfate | 35 | Barium sulfate, potassium titanate | 40 | |
| Testing program | Processing Fox anter carries out bench testing according to the AK-Master standard to it | Process precious Lay anter, carry out engine bench test according to the AK-Master standard | ||
, according to following production technique processed sample, and test: batch mixing---hot-forming---grinding------oven dry---installation accessories---the seal mark encapsulation of spraying paint according to above formulating of recipe.
Test-results:
Common few metal formulations is when carrying out the decline program, and fading rate is up to more than 40%, and high speed performance is also very poor, is lower than 0.25, and adds few metal formulations (prescription A) of calcium carbonate crystal whisker, and fading rate is lower than 15%, during high speed, is higher than 0.3.
Common NAO prescription is when carrying out the decline program, and fading rate is up to more than 45%, and high speed performance also presents obvious must the reduction, is difficult to reach 0.25, and adds the NAO prescription (prescription B) of calcium carbonate crystal whisker, and fading rate is lower than 20%, during high speed, can reach 0.3.
Claims (2)
1. a calcium carbonate crystal whisker is used to prepare the method for brake facing, it is characterized in that being made up of the raw material of following weight part: caking agent 5～15, adopt resol; Strongthener 20～30 is to mix with one or more of steel fiber or ceramic fiber and aramid fiber, mineral fibre, glass fibre; Abrasive 1～15 comprises the one or more combination of aluminium sesquioxide, ferric oxide, magnesium oxide, friction powder; Lubricant 5～15 comprises graphite, molybdenumdisulphide, micaceous one or more combination; Stablizer calcium carbonate crystal whisker 5-15; Filler 30～50 comprises barium sulfate, potassium titanate, magnesian one or more combination.
2. calcium carbonate crystal whisker according to claim 1 is used to prepare the method for brake facing, it is characterized in that described resol comprises a kind of of unmodified resol or silicon modified phenolic resins, butyronitrile remodeling resol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101147874A CN101205456A (en) | 2007-11-27 | 2007-11-27 | Method for preparing brake block by calcium carbonate crystal whisker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101147874A CN101205456A (en) | 2007-11-27 | 2007-11-27 | Method for preparing brake block by calcium carbonate crystal whisker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205456A true CN101205456A (en) | 2008-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101147874A Pending CN101205456A (en) | 2007-11-27 | 2007-11-27 | Method for preparing brake block by calcium carbonate crystal whisker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205456A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851341A (en) * | 2010-05-18 | 2010-10-06 | 东营山信新型材料有限公司 | Method for preparing brake pad by utilizing potassium titanate lamella crystal |
| CN101851102A (en) * | 2010-05-20 | 2010-10-06 | 湖南博云汽车制动材料有限公司 | Ceramic high-temperature processing technology for ceramic matrix brake pad |
| CN102003481A (en) * | 2010-11-08 | 2011-04-06 | 信义集团公司 | Method for preparing brake sheet of sedan from rubber-coated steel fibers |
| CN102032301A (en) * | 2010-11-08 | 2011-04-27 | 东营信义汽车配件有限公司 | Preparation method of silicate composite material brake pad |
| CN101514252B (en) * | 2009-03-19 | 2011-06-15 | 福州大学 | Whisker composite material for reinforcing automobile brake friction and a method for producing the same |
| CN102382627A (en) * | 2011-08-25 | 2012-03-21 | 东营博瑞制动系统有限公司 | Formula and preparing method of para-aramid fiber friction material |
| CN102432897A (en) * | 2011-08-03 | 2012-05-02 | 东营博瑞制动系统有限公司 | Manufacturing method of friction material with copper-free ceramic formula |
| CN102585262A (en) * | 2011-12-31 | 2012-07-18 | 东营宝丰汽车配件有限公司 | Method for preparing brake pad by utilizing ceramic fiber |
| CN102619913A (en) * | 2011-12-16 | 2012-08-01 | 东营博瑞制动系统有限公司 | Method for preparing low-metallic brake pads by utilizing sodium titanate whisker |
| CN102619907A (en) * | 2011-12-16 | 2012-08-01 | 东营博瑞制动系统有限公司 | Formula for preparing brake pads by utilizing acicular ceramic fiber |
| CN101792654B (en) * | 2009-07-27 | 2014-02-26 | 湖北赤壁赛飞摩擦材料有限公司 | Ceramic base/NAO composite friction material and preparation method thereof |
| CN103629281A (en) * | 2013-11-15 | 2014-03-12 | 宁国飞鹰汽车零部件股份有限公司 | Ceramic high-performance disc brake pad for bus and manufacturing method thereof |
| CN103644228A (en) * | 2013-11-15 | 2014-03-19 | 宁国飞鹰汽车零部件股份有限公司 | Wear-resistant brake pad and preparation method thereof |
| CN104675892A (en) * | 2013-11-27 | 2015-06-03 | 山东金山汽配有限公司 | Manufacturing process of glass fiber composite material brake pad |
| CN105134843A (en) * | 2015-08-26 | 2015-12-09 | 万山特区宏安摩擦材料有限公司 | Ceramic friction material and raw material mixing method thereof |
| CN105715719A (en) * | 2016-03-21 | 2016-06-29 | 北京科技大学 | High-heat-conductivity semimetal brake block |
| CN105822708A (en) * | 2016-03-29 | 2016-08-03 | 宁波市福路德汽车科技发展有限公司 | Processing technology of disc brake pad |
| CN106438789A (en) * | 2016-10-21 | 2017-02-22 | 马乐群 | Ceramic brake pad |
| CN106753239A (en) * | 2016-11-10 | 2017-05-31 | 无锡市明盛强力风机有限公司 | A kind of friction material of whisker doping |
| CN110594323A (en) * | 2019-09-09 | 2019-12-20 | 中山市赛福特汽车配件有限公司 | Composite double-layer brake pad and preparation method thereof |
| CN111022532A (en) * | 2019-11-30 | 2020-04-17 | 中山市环亚汽车科技有限公司 | Clutch friction plate, preparation method thereof and clutch |
-
2007
- 2007-11-27 CN CNA2007101147874A patent/CN101205456A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514252B (en) * | 2009-03-19 | 2011-06-15 | 福州大学 | Whisker composite material for reinforcing automobile brake friction and a method for producing the same |
| CN101792654B (en) * | 2009-07-27 | 2014-02-26 | 湖北赤壁赛飞摩擦材料有限公司 | Ceramic base/NAO composite friction material and preparation method thereof |
| CN101851341A (en) * | 2010-05-18 | 2010-10-06 | 东营山信新型材料有限公司 | Method for preparing brake pad by utilizing potassium titanate lamella crystal |
| CN101851102A (en) * | 2010-05-20 | 2010-10-06 | 湖南博云汽车制动材料有限公司 | Ceramic high-temperature processing technology for ceramic matrix brake pad |
| CN102003481A (en) * | 2010-11-08 | 2011-04-06 | 信义集团公司 | Method for preparing brake sheet of sedan from rubber-coated steel fibers |
| CN102032301A (en) * | 2010-11-08 | 2011-04-27 | 东营信义汽车配件有限公司 | Preparation method of silicate composite material brake pad |
| CN102432897A (en) * | 2011-08-03 | 2012-05-02 | 东营博瑞制动系统有限公司 | Manufacturing method of friction material with copper-free ceramic formula |
| CN102382627A (en) * | 2011-08-25 | 2012-03-21 | 东营博瑞制动系统有限公司 | Formula and preparing method of para-aramid fiber friction material |
| CN102619913A (en) * | 2011-12-16 | 2012-08-01 | 东营博瑞制动系统有限公司 | Method for preparing low-metallic brake pads by utilizing sodium titanate whisker |
| CN102619907A (en) * | 2011-12-16 | 2012-08-01 | 东营博瑞制动系统有限公司 | Formula for preparing brake pads by utilizing acicular ceramic fiber |
| CN102585262A (en) * | 2011-12-31 | 2012-07-18 | 东营宝丰汽车配件有限公司 | Method for preparing brake pad by utilizing ceramic fiber |
| CN103644228A (en) * | 2013-11-15 | 2014-03-19 | 宁国飞鹰汽车零部件股份有限公司 | Wear-resistant brake pad and preparation method thereof |
| CN103629281A (en) * | 2013-11-15 | 2014-03-12 | 宁国飞鹰汽车零部件股份有限公司 | Ceramic high-performance disc brake pad for bus and manufacturing method thereof |
| CN103644228B (en) * | 2013-11-15 | 2016-01-20 | 宁国飞鹰汽车零部件股份有限公司 | A kind of wear brake pad and preparation method thereof |
| CN104675892A (en) * | 2013-11-27 | 2015-06-03 | 山东金山汽配有限公司 | Manufacturing process of glass fiber composite material brake pad |
| CN105134843A (en) * | 2015-08-26 | 2015-12-09 | 万山特区宏安摩擦材料有限公司 | Ceramic friction material and raw material mixing method thereof |
| CN105134843B (en) * | 2015-08-26 | 2017-08-25 | 贵州宏安制动器科技有限公司 | A kind of ceramic frication material and its method for mixing raw materials |
| CN105715719A (en) * | 2016-03-21 | 2016-06-29 | 北京科技大学 | High-heat-conductivity semimetal brake block |
| CN105715719B (en) * | 2016-03-21 | 2018-02-02 | 北京科技大学 | A kind of high heat conduction semi-metallic brake pad |
| CN105822708A (en) * | 2016-03-29 | 2016-08-03 | 宁波市福路德汽车科技发展有限公司 | Processing technology of disc brake pad |
| CN106438789A (en) * | 2016-10-21 | 2017-02-22 | 马乐群 | Ceramic brake pad |
| CN106753239A (en) * | 2016-11-10 | 2017-05-31 | 无锡市明盛强力风机有限公司 | A kind of friction material of whisker doping |
| CN110594323A (en) * | 2019-09-09 | 2019-12-20 | 中山市赛福特汽车配件有限公司 | Composite double-layer brake pad and preparation method thereof |
| CN111022532A (en) * | 2019-11-30 | 2020-04-17 | 中山市环亚汽车科技有限公司 | Clutch friction plate, preparation method thereof and clutch |
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Application publication date: 20080625 |