CN101592203A - A kind of semimetal ceramic base automobile brake pad and preparation method thereof - Google Patents
A kind of semimetal ceramic base automobile brake pad and preparation method thereof Download PDFInfo
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- CN101592203A CN101592203A CNA2009103040349A CN200910304034A CN101592203A CN 101592203 A CN101592203 A CN 101592203A CN A2009103040349 A CNA2009103040349 A CN A2009103040349A CN 200910304034 A CN200910304034 A CN 200910304034A CN 101592203 A CN101592203 A CN 101592203A
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- semimetal
- automobile brake
- reinforcing fiber
- brake pad
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Abstract
The invention discloses a kind of semimetal ceramic base automobile brake pad, its material prescription is counted by weight percentage and is bonding matrix 15-30, reinforcing fiber 25-50, frictional property regulator 10-20, filler 10-30, wherein: described bonding matrix mainly with the modification sodium aluminosilicate as inorganic high-temperature agglomerant, a small amount of phenolic resin and rubber are as low temperature additional adhesive in organic, the weight ratio of inorganic ceramic Bond and organic binder=5: 1; Described reinforcing fiber is mainly Steel Fibre, the copper fiber, and pottery or mineral fibre are as auxiliary reinforcing fiber, the weight ratio of Steel Fibre and auxiliary reinforcing fiber=10: 1; Described frictional property regulator comprises chromite, graphite and friction powder; Described filler is petroleum coke and barite.The present invention is a kind of Security and the high semimetal ceramic base automobile brake pad of reliability, and its preparation method is simple and reliable.
Description
Technical field
The present invention relates to a kind of brake block, particularly relate to a kind of low-metal ceramic-based compound brake block that is used for brake system of car, the invention still further relates to the preparation method of this automobile brake sheet.
Background technique
Automobile brake sheet is the category-A key components and parts of brake system of car, and the quality of its performance is directly connected to the Security and the reliability of automobilism.The automobile brake sheet of main flow all adopts semimetal or few metal-resin base frication material in the market, when automobile during in continuous or emergency braking, the temperature on brake block and brake disc surface is up to 500～700 ℃, because resin base brake block heat resistance is not good enough, at high temperature can decompose and emit water, gas, wet goods, form thin film at friction surface, make dry friction become mixed friction or wet friction, friction factor significantly reduces, the hidden danger that exists brake to lose efficacy is simultaneously because a large amount of thermolysiss of resin have reduced its cementation, material at high temperature wearing and tearing aggravation causes significantly reduce the working life of brake block.Some ceramic automobile brake blocks on the market adopt the ceramic fiber of more amount to substitute traditional Steel Fibre at present, although its braking comfort property (comprise noise, fall ash and with the antithesis matching etc.) obviously improve, but owing to still adopt resin, caused it to have the elevated temperature heat decline and at high temperature very easily cracked and problems such as high-temperature wear behavior is relatively poor as main Bond.
Summary of the invention
First technical problem to be solved by this invention provides a kind of Security and the high semimetal ceramic base automobile brake pad of reliability.
Second technical problem to be solved by this invention provides the preparation method of this ceramet group automobile brake block.
In order to solve above-mentioned first technical problem, semimetal ceramic base automobile brake pad provided by the invention, its material prescription count by weight percentage into:
Bonding matrix 15-30, reinforcing fiber 25-50, frictional property regulator 10-20, filler 10-30, wherein:
Described bonding matrix mainly with modification aluminium, silicates ceramic phase as inorganic high-temperature agglomerant, a small amount of phenolic resin and rubber are as low temperature additional adhesive in organic, the weight ratio of inorganic ceramic Bond and organic binder=5: 1; Described reinforcing fiber is mainly Steel Fibre, and copper fiber, pottery or mineral fibre are as auxiliary reinforcing fiber, the weight ratio of Steel Fibre and auxiliary reinforcing fiber=10: 1; Described frictional property regulator comprises chromite, graphite and friction powder; Described filler is petroleum coke and barite.
Its material prescription count by weight percentage into:
Vitrified bond 10～20, resin/rubber 5～10,
Steel Fibre 30～40, copper fiber, pottery or mineral fibre 5～10,
Graphite 5～10, antimony sulphide 3～8,
Chromite 2～5, organic friction powder 2～5,
Barite 10～20, petroleum coke 5～10.
In order to solve above-mentioned second technical problem, the method for preparing semimetal ceramic base automobile brake pad provided by the invention comprises the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 4～5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 200～300kgf/cm
2, 160～200 ℃ of hot pressing temperatures, exhaust 10～12 times, the dwell time decides according to the thickness of brake block, generally is 55～65s/mm;
(4), heat treatment: brake block was warmed up to 160 ℃ at 2 hours from room temperature, is incubated 4 hours, be warmed up to 210 ℃ at 1 hour again, be incubated 4 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 650～700 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
Adopt semimetal ceramic base automobile brake pad of technique scheme and preparation method thereof, with respect to semimetal resin base automobile brake sheet, semimetal ceramic base automobile brake pad all is greatly improved at aspects such as velocity coherence, Braking efficiency, noise control, heat resistance and working lifes, and manufacture cost remains basically stable, and semimetal ceramic base automobile brake pad is the higher new-type friction material goods of a kind of cost performance.
In sum, the present invention is a kind of Security and the high semimetal ceramic base automobile brake pad of reliability, and its preparation method is simple and reliable.
Embodiment
The invention will be further described below in conjunction with embodiment.
The dispensing information of semimetal ceramic-base brake block provided by the invention
Vitrified bond 10～20 (wt.%) resin/rubber 5～10 (wt.%)
Steel Fibre 30～40 (wt.%) copper fiber, pottery or mineral fibre 5～10 (wt.%)
Graphite 5～10 (wt.%) antimony sulphide 3～8 (wt.%)
The organic friction powder 2～5 of chromite 2～5 (wt.%) (wt.%)
Barite 10～20 (wt.%) petroleum coke 5～10 (wt.%).
In this formula system, vitrified bond mainly is meant aluminium, the silicates inorganic high-temperature agglomerant of modification, can significantly improve the heat resistance of material, reduce material wear extent at high temperature, can make simultaneously material form porous structure, increase the braking stationarity, reduce brake noise.For continuing to continue to use the moulding process and the manufacturing mechanism of resin base automobile brake sheet, add a spot of resin and rubber, drop into and cost of production with reduction equipment.Mineral fibre has advantages such as serviceability temperature height, humidity resistance is good, wearing and tearing are little, and can play the effect that the brake travelling comfort is strengthened and improved to microcosmic.During graphite is used as, low temperature lubricant, antimony sulphide forms the antifriction film at material surface as the medium and high temperature oiling agent, can increase the braking stationarity, reduces wearing and tearing, increases the service life.Chromite and organic friction powder etc. can improve friction factor, increase Braking efficiency.Barite, petroleum coke etc. are except that playing the effect that reduces cost, and the porosity ratio of can also stablize friction factor, regulating material improves the brake travelling comfort.
Preparation process's explanation of semimetal ceramic base automobile brake pad
Batching: by each component materials of said ratio weighing;
Batch mixing: load weighted each material is dropped in the high speed mixer mixing time 4～5 minutes;
Moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 200～300kgf/cm
2, 160～200 ℃ of hot pressing temperatures, exhaust 10～12 times, the dwell time decides according to the thickness of brake block, generally is 55～65s/mm;
Heat treatment: brake block was warmed up to 160 ℃ at 2 hours from room temperature, is incubated 4 hours, be warmed up to 210 ℃ at 1 hour again, be incubated 4 hours, cool to room temperature then with the furnace;
Again the above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 650～700 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
The performance of semimetal ceramic base automobile brake pad
By GB5763-98 half ceramet group and semimetal resin base automobile brake sheet are tested, test result sees Table 1.
Table 1 semimetal ceramic-base and resin base brake block constant speed test result
As can be seen from Table 1, the friction factor of semimetal ceramic base automobile brake pad from 100 ℃ to 350 ℃ variation less, wear extent rising with temperature before 200 ℃ increases, wear extent decreases on the contrary with the rising of temperature after 200 ℃, and total wear extent is less, do not have oil film on the rubbing surface, corrosion phenomena is not obvious in the immersed water test; The friction factor of semimetal resin base brake block raise with temperature before 250 ℃, and it is serious to fail during high temperature, and wear extent raises with temperature significantly to be increased, and one deck oil film is arranged on the rubbing surface, and corrosion is serious in the immersed water test.In the constant speed test, the combination property of semimetal ceramic base automobile brake pad is apparently higher than semimetal resin base automobile brake sheet.
Semimetal ceramic base automobile brake pad to a certain vehicle is tested on Link3000 inertia bench testing machine, and test procedure is AK-Master.The result shows, in potency test, at a high speed and inefficiency≤5% of low speed; In decline test, maximum temperature is 650 ℃, and high coefficient of friction is 0.39, and minimum friction factor is 0.36; In the test of paddling, high coefficient of friction is 0.36.Minimum is 0.30; Total wear extent is 0.30mm, and Friction Disk Surface is complete, does not have collapse limit, flawless.
In sum, compare similar resin-based brake block, with the automobile brake sheet that the technology of the present invention makes, its coefficient of friction has Increase, high-temperature stability and wearability are better, and have weakened the easy-to-rust problem that semi-metallic brake pad exists. Semimetal is made pottery The porcelain group automobile brake block is the higher new-type friction material of a kind of cost performance, has wide market application foreground.
Claims (3)
1. semimetal ceramic base automobile brake pad is characterized in that: its material prescription count by weight percentage into:
Bonding matrix 15-30, reinforcing fiber 25-50, frictional property regulator 10-20, filler 10-30, wherein:
Described bonding matrix mainly with the modification sodium aluminosilicate as inorganic high-temperature agglomerant, a small amount of phenolic resin and rubber are as low temperature additional adhesive in organic, the weight ratio of inorganic ceramic Bond and organic binder=5: 1; Described reinforcing fiber is mainly Steel Fibre, and copper fiber, pottery or mineral fibre are as auxiliary reinforcing fiber, the weight ratio of Steel Fibre and auxiliary reinforcing fiber=10: 1; Described frictional property regulator comprises chromite, graphite and friction powder; Described filler is petroleum coke and barite.
2. semimetal ceramic base automobile brake pad according to claim 1 is characterized in that: its material prescription count by weight percentage into:
Vitrified bond 10～20, resin/rubber 5～10,
Steel Fibre 30～40, copper fiber, pottery or mineral fibre 5～10,
Graphite 5～10, antimony sulphide 3～8,
Chromite 2～5, organic friction powder 2～5,
Barite 10～20, petroleum coke 5～10.
3. prepare the method for the described semimetal ceramic base automobile brake pad of claim 1, it is characterized in that: comprise the steps:
(1), batching: by each component materials of said ratio weighing;
(2), batch mixing: load weighted each material is dropped in the high speed mixer mixing time 4～5 minutes;
(3), moulding: take by weighing mixture by the brake block model, pour in the hot-pressing die, pressing pressure 200～300kgf/cm2,160～200 ℃ of hot pressing temperatures, exhaust 10～12 times, the dwell time decides according to the thickness of brake block, generally is 55～65s/mm
(4), heat treatment: brake block was warmed up to 160 ℃ at 2 hours from room temperature, is incubated 4 hours, be warmed up to 210 ℃ at 1 hour again, be incubated 4 hours, cool to room temperature then with the furnace;
(5), the more above-mentioned product that makes is carried out grinding, chamfering by technical requirements, fluting carries out the high temperature ablation surface treatment then under 650～700 ℃ temperature, through spraying, seal mark, is processed into automobile brake sheet again.
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| CNA2009103040349A CN101592203A (en) | 2009-07-06 | 2009-07-06 | A kind of semimetal ceramic base automobile brake pad and preparation method thereof |
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| CNA2009103040349A CN101592203A (en) | 2009-07-06 | 2009-07-06 | A kind of semimetal ceramic base automobile brake pad and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813151A (en) * | 2010-05-24 | 2010-08-25 | 湖南博云汽车制动材料有限公司 | Semimetal ceramic matrix air disc brake pad and production method thereof |
| CN102173716A (en) * | 2011-02-24 | 2011-09-07 | 西北工业大学 | Analogous ceramic high-temperature resistant friction material and preparation method thereof |
| CN102229493A (en) * | 2011-04-13 | 2011-11-02 | 中南大学 | Resin-free full ceramic based automobile brake pad and preparation method thereof |
| 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 |
| CN102618216A (en) * | 2012-02-27 | 2012-08-01 | 西北工业大学 | Ceramic-like friction material and preparation method thereof |
| CN103194039A (en) * | 2013-04-17 | 2013-07-10 | 北京瑞斯福科技有限公司 | Synthetic material with low friction coefficient and preparation method thereof |
| CN104315045A (en) * | 2014-09-16 | 2015-01-28 | 湖南博云汽车制动材料有限公司 | Low-cost low-noise semimetal disc type brake pad and preparation method thereof |
| CN105864330A (en) * | 2016-05-12 | 2016-08-17 | 苏州爱盟机械有限公司 | Preparation method of high-performance bicycle brake pad |
| CN107218322A (en) * | 2017-04-21 | 2017-09-29 | 湖南博云汽车制动材料有限公司 | A kind of electronic mini-bus hydraulic disc brake piece and preparation method thereof |
| CN107573897A (en) * | 2017-09-27 | 2018-01-12 | 武汉元丰摩擦材料有限公司 | A kind of high-temperature resistant friction material additive and preparation method thereof |
| CN108006121A (en) * | 2017-12-30 | 2018-05-08 | 烟台孚瑞克森汽车部件有限公司 | A kind of high braking ability friction material of carbon terrine and preparation method thereof |
| CN109369083A (en) * | 2018-12-09 | 2019-02-22 | 马鞍山市雷狮轨道交通装备有限公司 | A kind of rail traffic cavetto grinding |
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2009
- 2009-07-06 CN CNA2009103040349A patent/CN101592203A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813151B (en) * | 2010-05-24 | 2013-08-07 | 湖南博云汽车制动材料有限公司 | Production method of semimetal ceramic matrix air disc brake pad |
| CN101813151A (en) * | 2010-05-24 | 2010-08-25 | 湖南博云汽车制动材料有限公司 | Semimetal ceramic matrix air disc brake pad and production method thereof |
| CN102173716A (en) * | 2011-02-24 | 2011-09-07 | 西北工业大学 | Analogous ceramic high-temperature resistant friction material and preparation method thereof |
| CN102173716B (en) * | 2011-02-24 | 2013-02-20 | 西北工业大学 | Analogous ceramic high-temperature resistant friction material and preparation method thereof |
| CN102229493A (en) * | 2011-04-13 | 2011-11-02 | 中南大学 | Resin-free full ceramic based automobile brake pad and preparation method thereof |
| 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 |
| CN102250583B (en) * | 2011-05-21 | 2014-04-30 | 瑞阳汽车零部件（仙桃）有限公司 | Less-copper friction material composition for brake block |
| CN102618216A (en) * | 2012-02-27 | 2012-08-01 | 西北工业大学 | Ceramic-like friction material and preparation method thereof |
| CN103194039A (en) * | 2013-04-17 | 2013-07-10 | 北京瑞斯福科技有限公司 | Synthetic material with low friction coefficient and preparation method thereof |
| CN103194039B (en) * | 2013-04-17 | 2015-08-05 | 北京瑞斯福高新科技股份有限公司 | A kind of Synthetic material with low friction coefficient and preparation method |
| CN104315045A (en) * | 2014-09-16 | 2015-01-28 | 湖南博云汽车制动材料有限公司 | Low-cost low-noise semimetal disc type brake pad and preparation method thereof |
| CN105864330A (en) * | 2016-05-12 | 2016-08-17 | 苏州爱盟机械有限公司 | Preparation method of high-performance bicycle brake pad |
| CN107218322A (en) * | 2017-04-21 | 2017-09-29 | 湖南博云汽车制动材料有限公司 | A kind of electronic mini-bus hydraulic disc brake piece and preparation method thereof |
| CN107573897A (en) * | 2017-09-27 | 2018-01-12 | 武汉元丰摩擦材料有限公司 | A kind of high-temperature resistant friction material additive and preparation method thereof |
| CN108006121A (en) * | 2017-12-30 | 2018-05-08 | 烟台孚瑞克森汽车部件有限公司 | A kind of high braking ability friction material of carbon terrine and preparation method thereof |
| CN109369083A (en) * | 2018-12-09 | 2019-02-22 | 马鞍山市雷狮轨道交通装备有限公司 | A kind of rail traffic cavetto grinding |
| CN109369083B (en) * | 2018-12-09 | 2022-02-11 | 马鞍山市雷狮轨道交通装备有限公司 | Rounding grinder for rail transit |
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Application publication date: 20091202 |