CN100359200C - Reinforced brake lining - Google Patents
Reinforced brake lining Download PDFInfo
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- CN100359200C CN100359200C CNB2005100126265A CN200510012626A CN100359200C CN 100359200 C CN100359200 C CN 100359200C CN B2005100126265 A CNB2005100126265 A CN B2005100126265A CN 200510012626 A CN200510012626 A CN 200510012626A CN 100359200 C CN100359200 C CN 100359200C
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Abstract
The present invention belongs to the technical field of friction materials used for mechanical braking, which more specifically discloses a reinforcing type brake lining. The present invention comprises the main technical scheme that reinforcing type brake lining comprises ceramic fibers which are used as reinforcing materials, filler materials and an adhesive and is prepared by the processes of raw material drying, material preparation, material mixing, forming by pressing, heat treatment, grinding, etc. The ceramic fibers are used as reinforcing materials in the brake lining, and asbestos and any metal component are not contained. Therefore, the problems of the harm of asbestos and heavy metal to human bodies and environmental pollution in the processes of production and use of traditional friction materials are solved. In addition, the brake lining does not need to added with a special heat-insulating layer, production processes are simplified, and the fault rate of brake linings is lowered. Various brake linings can be produced by the reinforcing type brake lining.
Description
Technical field
The invention belongs to mechanical braking friction material technical field, relate to a kind of preparation method and special device of reinforced brake lining specifically.
Prior art
Brake facing claims brake block again, as the critical component and the easily damaged parts of safety running of motor-vehicle, is mainly made by reinforcing material, filler and Bond composition.What present employed reinforcing material (claiming framework material again) generally adopted is asbestos, glass fibre and organic class synthetic fiber.All exist different defectives by these lamination coatings as the brake facing that reinforcing material is prepared into: when using asbestos fiber and organic class synthetic fiber to prepare brake facing, because the fine floating fiber that asbestos material and organic class composite fibre materials produce in production and using process, or advance respiratory apparatus and enter human body, not only can not be absorbed by the body, can not excrete, can make human organ produce pathology infringement health through accumulation; Therefore, use asbestos fiber and organic class synthetic fiber to refer to that the brake facing of making is about to eliminate.Use glass fibre to prepare brake facing, in preparation process, glass fibre can directly work the mischief to the direct labor.Therefore, cost of production is higher.
The patent application that application number is 97112643.7, publication number is CN1203326A discloses a kind of asbestos-free friction material and manufacture method thereof.Because the reinforcing material in the disclosed asbestos-free friction material of this patent application is made of hair and Steel Fibre, and also contains (former iron powder/aluminium powder/copper powder) metal powder of 10-40% in filler.This asbestos-free friction material (brake facing), because the content of metallic material is higher, its proportion and thermal conductivity obviously increase, the aggressiveness that therefore exists antithesis strengthens, gets rusty easily and this liner is come off from steel backing and cause the defective of car accident.
The content of invention
First purpose of the present invention just provides a kind of a kind of reinforced brake lining that does not have asbestos, do not contain any metal ingredient, function admirable.
Second purpose of the present invention just provides the special device of the above-mentioned a kind of reinforced brake lining of preparation.
The technological scheme that realizes first purpose proposed by the invention is:
A kind of reinforced brake lining is made up of the Bond that filler that constitutes as ceramic fiber, mineral filler and the rubber powder of reinforcing material and phenol-formaldehyde resin modified constitute.
The weight ratio that constitutes its composition in addition is:
Ceramic fiber 10-30 filler 30-60 Bond 10-35.
The method step that utilizes above-mentioned composition to prepare reinforced brake lining is:
(1) raw material drying:, remove moisture with stupalith and employed paddle dryer;
(2) batching: dried ceramic fiber and filler are prepared burden by selected prescription;
(3) batch mixing: utilize mixing apparatus fully to mix the ceramic fiber, filler and the Bond that prepare;
(4) compression moulding: get mixed raw materials and insert mold heated compression moulding;
(5) heat treatment step: after above-mentioned compression moulding operation, the liner body of moulding is heat-treated.
(6) grinding process: the liner body after the heat treatment is carried out grinding.
Realize second purpose proposed by the invention, promptly prepare employed mixing apparatus in the method for above-mentioned a kind of reinforced brake lining, constitute by horizontal drum ladle and the rotating shaft that has paddle that axially penetrates this container, on the inwall of described drum ladle, be installed with some rotating shafts that drive by power that have reamer.
In this equipment, the structure that is installed with the rotating shaft that is driven by power that has reamer between the paddle of the rotating shaft in described drum ladle is best.
A kind of reinforced brake lining provided by the present invention compared with prior art has the following advantages: one, make reinforcing material owing in brake facing, adopt ceramic fiber, do not contain asbestos and any metal ingredient, eradicated conventional friction material in production and using process, asbestos and heavy metal have good environmental protection advantage to the harm and the environmental pollution problems of human body; Its two owing to do not contain metal ingredient in this brake facing, heat conductivity is low, the braking plate that therefore utilizes this liner to produce need not to increase special-purpose thermal-protective coating, has simplified production process, has reduced the rate of fault of braking plate; Its three owing on the drum ladle inwall of raw material mixing agitator, be installed with some rotating shafts that have reamer, therefore make as the mixed distribution of the ceramic fiber of framework material more evenly, effectively guaranteed the frictional behaviour of liner.
Description of drawings
Fig. 1: be the structural representation of raw material mixing apparatus;
Fig. 2: for being bonded with the structural representation of reinforced brake lining brake block.
Embodiment
Preparation process to reinforced brake lining proposed by the invention is described in further detail below in conjunction with drawings and the specific embodiments:
The first step, raw-material drying: get 10 kilograms of ceramic fibers and as 8 kilograms in filler barium sulphate with performance of stable friction factor, have 3 kilograms in filler nanometer butadiene acrylonitrile rubber powder reducing product hardness and reduce the operating noise performance, have 1 kilogram in 4 kilograms of 2 kilograms in 12 kilograms of filler molybdenum disulfide, limestone, French chalk, the coke powder improving the liner life-span of reducing to wear and tear and put into container respectively and carry out dryness in the sun and drive away moisture;
Second step, batching: dried ceramic fiber and the filler that taken by weighing are mixed;
In the 3rd step, batch mixing: the cashew nut oil modified alkyd resin that takes by weighing 15 kilograms is made tackiness agent, and will the prepare burden ceramic fiber of getting well and filler are poured in as shown in Figure 1 the mixing apparatus together with Bond and fully mixed 10 minutes;
In the 4th step, compression moulding: take by weighing mixed raw materials by mould and insert wherein, compression moulding is promptly heated in depanning after keeping 15 minutes under the pressure of 190 ℃ temperature and 30Mpa;
The 5th step, heat treatment: for make framework material, filler in the liner bonding more evenly, frictional behaviour is more stable, need the liner blank of compression moulding is heat-treated, its operation is: it is inserted be heated to 120 ℃ of maintenances 1 hour in the baking oven, the back evenly was heated to 180 ℃ in 3 hours, the back in 6 hours, evenly be heated to 240 ℃, after stop the heating and natural cooling.
The 6th step, grinding: the liner blank after compression moulding and the heat treatment is carried out grinding, promptly become the reinforced brake lining bonding with steel backing.
The first step, raw-material drying: get 20 kilograms of ceramic fibers and as 20 kilograms in filler barite with performance of stable friction factor, have 15 kilograms of filler tyre talcs reducing product hardness and reduce the operating noise performance, have 5 kilograms of 2 kilograms in 3 kilograms of filler phosphorus flags, corundum, the dolomites improving the liner life-span of reducing to wear and tear and put into container respectively and carry out dryness in the sun and drive away moisture;
Second step, batching: dried ceramic fiber and the filler that taken by weighing are mixed;
In the 3rd step, batch mixing: the latex modified phenol-formaldehyde resin that takes by weighing 20 kilograms is made tackiness agent, and will the prepare burden ceramic fiber of getting well and filler are poured in as shown in Figure 1 the mixing apparatus together with Bond and fully mixed 15 minutes;
In the 4th step, compression moulding: take by weighing mixed raw materials by mould and insert wherein, compression moulding is promptly heated in depanning after keeping 10 minutes under the pressure of 200 ℃ temperature and 25Mpa;
The 5th step, heat treatment: for make framework material, filler in the liner bonding more evenly, frictional behaviour is more stable, need the liner blank of compression moulding is heat-treated, its operation is: it is inserted evenly be heated to 200 ℃ after being heated to 120 ℃ in the baking oven in 4 hours, the back in 4 hours, evenly be heated to 240 ℃, after stop the heating and natural cooling.
The 6th step, grinding: the liner blank after compression moulding and the heat treatment is carried out grinding, promptly become the reinforced brake lining bonding with steel backing.
The first step, raw-material drying: get 15 kilograms of ceramic fibers and as 15 kilograms of filler quartzs with performance of stable friction factor, have 20 kilograms of filler coke grains reducing product hardness and reduce the operating noise performance, have 5 kilograms in 5 kilograms of 5 kilograms of filler fluorographites, potassic feldspars, the graphite improving the liner life-span of reducing to wear and tear and put into container respectively and carry out dryness in the sun and drive away moisture;
Second step, batching: dried ceramic fiber and the filler that taken by weighing are mixed;
In the 3rd step, batch mixing: the polyvinyl alcohol modification phenolic resin that takes by weighing 30 kilograms is made tackiness agent, and will the prepare burden ceramic fiber of getting well and filler are poured in as shown in Figure 1 the mixing apparatus together with Bond and fully mixed 12 minutes;
In the 4th step, compression moulding: take by weighing mixed raw materials by mould and insert wherein, compression moulding is promptly heated in depanning after keeping 20 minutes under the pressure of 195 ℃ temperature and 35Mpa;
The 5th step, heat treatment: for make framework material, filler in the liner bonding more evenly, frictional behaviour is more stable, need the liner blank of compression moulding is heat-treated, its operation is: it is inserted be heated to 120 ℃ in the baking oven evenly be heated to 180 ℃ in 4 hours, the back in 4 hours, evenly be heated to 240 ℃, after stop the heating and natural cooling.
The 6th step, grinding: the liner blank after compression moulding and the heat treatment is carried out grinding, promptly become the reinforced brake lining bonding with steel backing.
The first step, raw-material drying: get 30 kilograms of ceramic fibers and as 8 kilograms in filler barite with performance of stable friction factor, have 20 kilograms in filler nanometer butadiene acrylonitrile rubber powder reducing product hardness and reduce the operating noise performance, have 20 kilograms of 12 kilograms of filler French chalk, the fluorites improving the liner life-span of reducing to wear and tear and put into container respectively and carry out dryness in the sun and drive away moisture;
Second step, batching: dried ceramic fiber and the filler that taken by weighing are mixed;
In the 3rd step, batch mixing: the tung oil modified phenolic resin that takes by weighing 15 kilograms is made tackiness agent, and will the prepare burden ceramic fiber of getting well and filler are poured in as shown in Figure 1 the mixing apparatus together with Bond and fully mixed 10 minutes;
In the 4th step, compression moulding: take by weighing mixed raw materials by mould and insert wherein, compression moulding is promptly heated in depanning after keeping 15 minutes under the pressure of 220 ℃ temperature and 32Mpa;
The 5th step, heat treatment: for make framework material, filler in the liner bonding more evenly, frictional behaviour is more stable, need the liner blank of compression moulding is heat-treated, its operation is: it is inserted be heated to 120 ℃ of maintenances 1 hour in the baking oven, the back evenly was heated to 200 ℃ in 4 hours, the back in 5 hours, evenly be heated to 240 ℃, after stop the heating and natural cooling.
The 6th step, grinding: the liner blank after compression moulding and the heat treatment is carried out grinding, promptly become the reinforced brake lining bonding with steel backing.
Embodiment 5
The first step, raw-material drying: get 25 kilograms of ceramic fibers and as 10 kilograms in filler corundum with performance of stable friction factor, have 15 kilograms of filler tyre talcs reducing product hardness and reduce the operating noise performance, have 3 kilograms in 3 kilograms of 5 kilograms of 10 kilograms in 5 kilograms of filler mica, silicious marl, molybdenum disulfide, French chalk, the coke powder improving the liner life-span of reducing to wear and tear and put into container respectively and carry out dryness in the sun and drive away moisture;
Second step, batching: dried ceramic fiber and the filler that taken by weighing are mixed;
In the 3rd step, batch mixing: the boron modified phenolic resin that takes by weighing 20 kilograms is made tackiness agent, and will the prepare burden ceramic fiber of getting well and filler are poured in as shown in Figure 1 the mixing apparatus together with Bond and fully mixed 10 minutes;
In the 4th step, compression moulding: take by weighing mixed raw materials by mould and insert wherein, compression moulding is promptly heated in depanning after keeping 20 minutes under the pressure of 210 ℃ temperature and 30Mpa;
The 5th step, heat treatment: for make framework material, filler in the liner bonding more evenly, frictional behaviour is more stable, need the liner blank of compression moulding is heat-treated, its operation is: it is inserted be heated to 120 ℃ of maintenances 1 hour in the baking oven, the back evenly was heated to 180 ℃ in 3 hours, the back in 6 hours, evenly be heated to 240 ℃, after stop the heating and natural cooling.
The 6th step, grinding: the liner blank after compression moulding and the heat treatment is carried out grinding, promptly become the reinforced brake lining bonding with steel backing.
Be illustrated in figure 1 as the structural representation of employed raw material mixing apparatus in compounding process.Promptly this equipment comprises horizontal drum ladle 1 and axially penetrates the rotating shaft that has paddle 23 of this container, for make insert drum ladle raw material especially ceramic fiber mix more evenly, be installed with some radially rotating shafts 6 that drive by power that have reamer 5 within it on the wall 4.When utilizing this equipment batch mixing, when axially rotating shaft 3 drove paddle 2 stirrings, radially rotating shaft drove reamer 5 high speed rotating, makes raw material mix more evenly.
In order to reach the purpose that raw material mixes, be installed with a rotating shaft 6 that has reamer 5 on the internal face of the container that per two paddles of the rotating shaft 3 in drum ladle are 2 by the power drive.
Be illustrated in figure 2 as the reinforced brake lining 7 that utilizes above-mentioned technology to be prepared into is bonded in the brake block that constitutes on the steel backing 9 by resin layer 8 structural representation.Owing to utilize ceramic fiber to make reinforcing material, saved in the tradition fixing thermal-protective coating between the steel backing in the brake block and liner.Simplify production process, reduced the rate of fault of braking plate and the cost of product.
Claims (4)
1, a kind of reinforced brake lining is characterized in that: be made up of the Bond that filler that constitutes as ceramic fiber, mineral filler and the rubber powder of reinforcing material and phenol-formaldehyde resin modified constitute.
2, a kind of reinforced brake lining as claimed in claim 1 is characterized in that: the weight ratio that constitutes its composition is:
Ceramic fiber 10-30 filler 30-60 Bond 10-35.
3, the special device of a kind of reinforced brake lining of the preparation described preparation of claim 1, constitute by horizontal drum ladle and the rotating shaft that has paddle that axially penetrates this container, it is characterized in that: on the inwall of described drum ladle, be installed with some rotating shafts that drive by power that have reamer.
4, a kind of special device that strengthens the moving device liner of system type of preparation as claimed in claim 3 is characterized in that: described be installed with on the internal face of drum ladle have reamer the rotating shaft that drives by power between the paddle of drum ladle shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100126265A CN100359200C (en) | 2005-06-28 | 2005-06-28 | Reinforced brake lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100126265A CN100359200C (en) | 2005-06-28 | 2005-06-28 | Reinforced brake lining |
Publications (2)
| Publication Number | Publication Date |
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| CN1710302A CN1710302A (en) | 2005-12-21 |
| CN100359200C true CN100359200C (en) | 2008-01-02 |
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| CNB2005100126265A Active CN100359200C (en) | 2005-06-28 | 2005-06-28 | Reinforced brake lining |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389274C (en) * | 2006-04-04 | 2008-05-21 | 王彦钧 | Preparation process for disk type brake lining and dedicated apparatus therefor |
| CN101077912B (en) * | 2006-05-25 | 2011-03-09 | 洪建栋 | Asbestos-free non-metal friction material and preparation method thereof |
| CN100419300C (en) * | 2006-06-19 | 2008-09-17 | 河北正大摩擦制动材料有限公司 | Composite mineral fibre reinforced brake liner and preparation process and special device therefor |
| CN1958647B (en) * | 2006-11-08 | 2011-09-14 | 信义集团公司 | Preparation method of disk type brake sheets |
| CN102042358B (en) * | 2009-10-12 | 2012-07-25 | 廖岷 | Automotive disc ceramic brake without heavy metal, heavy metal sulfide or heavy metal fluoride |
| CN102345696B (en) * | 2011-09-22 | 2013-03-06 | 山东金麒麟股份有限公司 | Full ceramic brake pad and machining method thereof |
| CN102363724A (en) * | 2011-11-24 | 2012-02-29 | 湖南常德嘉达摩擦材料有限公司 | Iron powder and steel fiber free ceramic friction material |
| CN104946201A (en) * | 2014-03-31 | 2015-09-30 | 比亚迪股份有限公司 | Friction material, brake pad made of friction material, preparation method of brake pad, and vehicle |
| CN103964745B (en) * | 2014-04-25 | 2016-01-13 | 上海壬丰复合材料有限公司 | A kind of brake clamp thermal baffle and preparation method thereof |
| CN104632962A (en) * | 2014-12-11 | 2015-05-20 | 来安县隆华摩擦材料有限公司 | All-copper core spun yarn friction plate |
| CN105016758B (en) * | 2015-07-09 | 2017-06-13 | 宁波海瑞时新材料有限公司 | Wear-resistant ceramic material, ceramic partially reinforced aluminum matrix composites and preparation method |
| CN111396483A (en) * | 2020-04-03 | 2020-07-10 | 北京浦然轨道交通科技有限公司 | Brake shoe brake pad and manufacturing method thereof |
| CN113931956B (en) * | 2021-10-27 | 2023-12-05 | 曲阜天博汽车制动器有限公司 | Enhanced pre-mixed composite friction material, friction lining formula preparation process and device |
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| CN1431408A (en) * | 2001-11-22 | 2003-07-23 | 中国科学院山西煤炭化学研究所 | Disk type brake lining of cars and its preparing method |
| US6749937B2 (en) * | 2002-03-19 | 2004-06-15 | Honeywell International Inc. | Melt-infiltrated pitch-pan preforms |
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2005
- 2005-06-28 CN CNB2005100126265A patent/CN100359200C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2215343Y (en) * | 1993-04-17 | 1995-12-20 | 俞峰 | Horizontal powder material mixer |
| CN1033926C (en) * | 1993-11-20 | 1997-01-29 | 申文清 | Once through moulding technology for brake disc assembly |
| CN1431408A (en) * | 2001-11-22 | 2003-07-23 | 中国科学院山西煤炭化学研究所 | Disk type brake lining of cars and its preparing method |
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| CN1710302A (en) | 2005-12-21 |
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