CN103964745B - A kind of brake clamp thermal baffle and preparation method thereof - Google Patents
A kind of brake clamp thermal baffle and preparation method thereof Download PDFInfo
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- CN103964745B CN103964745B CN201410171541.0A CN201410171541A CN103964745B CN 103964745 B CN103964745 B CN 103964745B CN 201410171541 A CN201410171541 A CN 201410171541A CN 103964745 B CN103964745 B CN 103964745B
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- thermal baffle
- brake clamp
- clamp thermal
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Abstract
The present invention relates to a kind of brake clamp thermal baffle and preparation method thereof, get the raw materials ready according to following component and weight percent content: base material 15-30, strongthener 30-40, binding agent 10-20, heat-proof quality modifying agent 20-30; After standby for institute base material, binding agent and heat-proof quality modifying agent mixing, then add strongthener, and mix, then spray alcohol, dry in dryer afterwards, obtain mixture, stand-by; Mixture is shaping in forming mould, obtain sheet forming, by sheet forming sintering processes, after cooling, obtain brake clamp thermal baffle.Compared with prior art, brake clamp thermal baffle prepared by the present invention has superstrength, high temperature resistant, high pressure, thermal conductivity are lower, and life-time service temperature can reach more than 250 DEG C, and ultimate compression strength can reach more than 230MPa; And oil resistant, erosion resistance, weathering resistance are good, can be applicable to the temperature of-50 ~ 50 DEG C; Layering can not be produced during use, fall the bad phenomenon such as block; And process of manufacture is simple, once shaped, environment friendly and pollution-free.
Description
Technical field
The present invention relates to a kind of matrix material and preparation method thereof, especially relate to a kind of brake clamp thermal baffle and preparation method thereof.
Background technology
Motor-car brake clamp thermal baffle, the Hydraulic Elements utilizing axial compression stopper to produce frictional force realization braking, be the parts playing thermal insulation function between the oil cylinder of motor-car and friction plate, prevent oil temperature or temperature in the inefficacy of the wear ring of hydro-check and hydro-check from raising and affect compression ratio thus affect braking ability.
In track traffic, brake is the important guarantee of traffic safety, and because the braking energy of motor-car vehicle is huge, temperature arrising caused by friction is very high, and thermal baffle will pressurized continuously.So brake clamp thermal baffle not only requires that thermal conductivity is low, compressive strength is high, and thermal expansivity is low to ensure the unlikely cracking of Reusability, layering and losing efficacy.The domestic material being applied in brake clamp thermal baffle at present then mainly relies on import.
Chinese patent CN103183488A discloses a kind of High-temperature-reshigh-pressure-resistcomposite high-pressure-resistcomposite composite material thermal insulation plate and manufacture method thereof, the raw material of this thermal baffle comprises following component and weight part content: binding agent 15-35, heat-proof quality modifying agent 2-25, base material 40-95, strongthener 5-10; Above-mentioned base material and strongthener are joined in high-speed plough rake mixer in proportion and mixes, then remaining ingredient is joined in high-speed plough rake mixer in proportion again and mix, the mixture obtained is placed in forming mould, suppress, again shaping thermal baffle is at high temperature sintered, after the thermal baffle sintered is cooled to room temperature, carry out mechanical workout, high-temperature-resistant high-pressure-resistant matrix material thermal baffle can be obtained.The heat resisting temperature of the thermal baffle that this patented method obtains is about 200 DEG C, and ultimate compression strength can reach 100MPa.The heat resisting temperature of the thermal baffle that the method obtains and ultimate compression strength lower, the requirement of brake clamp thermal baffle to heat resisting temperature and incompressible intensity can not be met.
Summary of the invention
Object of the present invention be exactly provide that a kind of thermal conductivity is low, compressive strength is high, thermal expansivity is low to overcome defect that above-mentioned prior art exists, high voltage bearing brake clamp thermal baffle and preparation method thereof.
Object of the present invention can be achieved through the following technical solutions:
A kind of brake clamp thermal baffle, this brake clamp thermal baffle is made up of the raw material of following component and weight percentage:
Described base material is selected from potter's clay, barite or Feldspar Powder.
Described strongthener is selected from glass fibre or polysulphonamide fiber.
Described binding agent is selected from epoxy modified phenolic resin, Effect of Organosilicon-modified Phenol-formaldehyde Resin, cashew nut oil modified alkyd resin or polyimide modified resol.
Described heat-proof quality modifying agent is selected from the bright red or mica of red iron oxide, iron oxide yellow, rubber.
Described rubber is bright red is specially the bright red LC of rubber, its molecular weight: 888.98 molecular formula: C
34h
24cl
2n
4o
8s
2ba.
A preparation method for brake clamp thermal baffle, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight percent content: base material 15-30, strongthener 30-40, binding agent 10-20, heat-proof quality modifying agent 20-30;
(2) batch mixing: above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 2-4min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 1-2min, spray alcohol again, dry in dryer afterwards, obtain mixture, stand-by;
(3) mixture is shaping in forming mould, obtain sheet forming, by sheet forming sintering processes, after cooling, obtain brake clamp thermal baffle.
The batch mixing speed of high-speed plough rake mixer reaches more than 3000 revs/min.
Time shaping in forming mould, mold temperature is 120-150 DEG C, and forming pressure is 300-500kg/cm
2, molding time is 100-400 second.
The temperature of described sintering processes is 80-160 DEG C, and sintering time is 12-38 hour.
Obtained brake clamp thermal baffle has the performances such as thermal conductivity is low, compressive strength is high, thermal expansivity is low, high pressure resistant.
Compared with prior art, the present invention has the following advantages and beneficial effect:
The present invention adopts glass fibre or polysulphonamide fiber to be main strongthener, and because fibre content is higher, intensity is also higher, but fibre content is more, dispersion is more not easy, and it be made fully to unclamp, must take special mixing procedure, therefore the present invention adopts the mode of Multistep feeding to feed in raw material.The content of the present invention's fiber used is up to 30%-40%, and batch mixing speed, up to 3000 revs/min, so just can play fibre-reinforced effect.Because the higher material property of fibre content is also better, but moulding process is more difficult, therefore the present invention by adjustment base material, binding agent, heat-proof quality modifying agent and strongthener constituent species and between proportioning, the brake clamp thermal baffle of preparation is made to reach optimum performance, obtained brake clamp thermal baffle can reach performance requriements, can ensure again the stable of product and reliability.
Specifically, preparation brake clamp thermal baffle has superstrength, high temperature resistant, high pressure, thermal conductivity are lower, life-time service temperature can reach more than 250 DEG C, and ultimate compression strength can reach more than 230MPa.And oil resistant, erosion resistance, weathering resistance are good, can be applicable to the temperature of-50 ~ 50 DEG C.In use procedure, layering can not be produced, fall the bad phenomenon such as block.And process of manufacture is simple, once shaped, environment friendly and pollution-free.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
1, the preparation of raw material:
| Component | Weight percent |
| Epoxy modified phenolic resin | 10％ |
| Iron oxide yellow | 25％ |
| Barite | 30％ |
| Glass fibre | 35％ |
2, prepare:
Above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 2min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 2min, spray alcohol again, then dry in dryer.The mixture obtained is placed in forming mould, and controlling mold temperature is 120 DEG C, and forming pressure is 300kg/cm
2carry out compacting 300s.At high temperature sintered by shaping thermal baffle, controlling sintering temperature is 120 DEG C, and sintering time is 12h again.After the thermal baffle sintered is cooled to room temperature, carry out mechanical workout, the high pressure resistant heat insulation brake clamp thermal baffle of high strength can be obtained.
3, the performance test results
Thermal baffle obtained as stated above, its physical and mechanical properties test result is as follows:
Embodiment 2
1, the preparation of raw material:
| Component | Weight percent |
| Cashew nut oil modified alkyd resin | 15％ |
| Mica | 30％ |
| Feldspar Powder | 15％ |
| Polysulphonamide fiber | 40％ |
2, prepare:
Above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 3min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 1min, spray alcohol again, then dry in dryer.The mixture obtained is placed in forming mould, and controlling mold temperature is 140 DEG C, and forming pressure is 450kg/cm
2carry out compacting 250s.At high temperature sintered by shaping thermal baffle, controlling sintering temperature is 100 DEG C, and sintering time is 20h again.After the thermal baffle sintered is cooled to room temperature, carry out mechanical workout, the high pressure resistant heat insulation brake clamp thermal baffle of high strength can be obtained.
3, the performance test results
Thermal baffle obtained as stated above, its physical and mechanical properties test result is as follows:
Embodiment 3
1, the preparation of raw material:
| Component | Weight percent |
| Effect of Organosilicon-modified Phenol-formaldehyde Resin | 12％ |
| Red iron oxide | 27％ |
| Potter's clay | 23％ |
| Glass fibre | 38％ |
2, prepare:
Above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 4min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 1min, spray alcohol again, then dry in dryer.The mixture obtained is placed in forming mould, and controlling mold temperature is 135 DEG C, and forming pressure is 350kg/cm
2carry out compacting 350s.At high temperature sintered by shaping thermal baffle, controlling sintering temperature is 140 DEG C, and sintering time is 30h again.After the thermal baffle sintered is cooled to room temperature, carry out mechanical workout, the high pressure resistant heat insulation brake clamp thermal baffle of high strength can be obtained.
3, the performance test results
Thermal baffle obtained as stated above, its physical and mechanical properties test result is as follows:
Embodiment 4
1, the preparation of raw material:
| Component | Weight percent |
| Polyimide modified resol | 20％ |
| Rubber is bright red | 28％ |
| Potter's clay | 20％ |
| Glass fibre | 32％ |
Rubber is bright red is specially the bright red LC of rubber, its molecular weight: 888.98 molecular formula: C
34h
24cl
2n
4o
8s
2ba
2, prepare:
Above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 3min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 2min, spray alcohol again, then dry in dryer.The mixture obtained is placed in forming mould, and controlling mold temperature is 140 DEG C, and forming pressure is 500kg/cm
2carry out compacting 300s.At high temperature sintered by shaping thermal baffle, controlling sintering temperature is 90 DEG C, and sintering time is 35h again.After the thermal baffle sintered is cooled to room temperature, carry out mechanical workout, the high pressure resistant heat insulation brake clamp thermal baffle of high strength can be obtained.
3, the performance test results
Thermal baffle obtained as stated above, its physical and mechanical properties test result is as follows:
Embodiment 5
1, the preparation of raw material:
| Component | Weight percent |
| Epoxy modified phenolic resin | 18％ |
| Mica | 22％ |
| Feldspar Powder | 24％ |
| Polysulphonamide fiber | 36％ |
2, prepare:
Above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 4min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 2min, spray alcohol again, then dry in dryer.The mixture obtained is placed in forming mould, and controlling mold temperature is 160 DEG C, and forming pressure is 500kg/cm
2carry out compacting 400s.At high temperature sintered by shaping thermal baffle, controlling sintering temperature is 90 DEG C, and sintering time is 30h again.After the thermal baffle sintered is cooled to room temperature, carry out mechanical workout, the high pressure resistant heat insulation brake clamp thermal baffle of high strength can be obtained.
3, the performance test results
Thermal baffle obtained as stated above, its physical and mechanical properties test result is as follows:
Embodiment 1 ~ embodiment 5 prepare brake clamp thermal baffle all has superstrength, high temperature resistant, high pressure, thermal conductivity are lower, life-time service temperature can reach more than 250 DEG C, and ultimate compression strength is high.
Above-mentioned is can understand and use invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (7)
1. a brake clamp thermal baffle, is characterized in that, this brake clamp thermal baffle is made up of the raw material of following component and weight percentage:
Described strongthener is selected from glass fibre or polysulphonamide fiber;
Described heat-proof quality modifying agent is selected from the bright red or mica of red iron oxide, iron oxide yellow, rubber.
2. a kind of brake clamp thermal baffle according to claim 1, it is characterized in that, described base material is selected from potter's clay, barite or Feldspar Powder.
3. a kind of brake clamp thermal baffle according to claim 1, is characterized in that, described binding agent is selected from epoxy modified phenolic resin, Effect of Organosilicon-modified Phenol-formaldehyde Resin, cashew nut oil modified alkyd resin or polyimide modified resol.
4. a preparation method for the brake clamp thermal baffle as described in as arbitrary in claims 1 to 3, it is characterized in that, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight percent content: base material 15-30, strongthener 30-40, binding agent 10-20, heat-proof quality modifying agent 20-30;
(2) batch mixing: above-mentioned base material, binding agent and heat-proof quality modifying agent are joined in high-speed plough rake mixer in proportion and mixes, control mixing time is 2-4min, then strongthener is joined in high-speed plough rake mixer in proportion again and mix, control mixing time is 1-2min, spray alcohol again, dry in dryer afterwards, obtain mixture, stand-by;
(3) mixture is shaping in forming mould, obtain sheet forming, by sheet forming sintering processes, after cooling, obtain brake clamp thermal baffle.
5. the preparation method of a kind of brake clamp thermal baffle according to claim 4, is characterized in that, during batch mixing, the batch mixing speed of high-speed plough rake mixer reaches more than 3000 revs/min.
6. the preparation method of a kind of brake clamp thermal baffle according to claim 4, is characterized in that, time shaping in forming mould, mold temperature is 120-150 DEG C, and forming pressure is 300-500kg/cm
2, molding time is 100-400 second.
7. the preparation method of a kind of brake clamp thermal baffle according to claim 4, is characterized in that, the temperature of described sintering processes is 80-160 DEG C, and sintering time is 12-38 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171541.0A CN103964745B (en) | 2014-04-25 | 2014-04-25 | A kind of brake clamp thermal baffle and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171541.0A CN103964745B (en) | 2014-04-25 | 2014-04-25 | A kind of brake clamp thermal baffle and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103964745A CN103964745A (en) | 2014-08-06 |
| CN103964745B true CN103964745B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410171541.0A Active CN103964745B (en) | 2014-04-25 | 2014-04-25 | A kind of brake clamp thermal baffle and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7351854B2 (en) * | 2018-12-21 | 2023-09-27 | 阿波製紙株式会社 | Power supply equipment and insulation sheets for power supply equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710302A (en) * | 2005-06-28 | 2005-12-21 | 河北星月制动元件有限公司 | Reinforced brake lining |
| CN101429981A (en) * | 2008-12-15 | 2009-05-13 | 重庆红宇摩擦制品有限公司 | Brake shoe used for high-strength bi-component environmental-protecting car and method for producing the same |
| CN101597476A (en) * | 2008-06-05 | 2009-12-09 | 比亚迪股份有限公司 | A kind of micropore friction material and preparation method thereof |
| EP2378152A1 (en) * | 2010-11-04 | 2011-10-19 | Kematis Projects Limited | Heat-insulating component for brake assembly |
| CN103183488A (en) * | 2011-12-29 | 2013-07-03 | 上海壬丰复合材料有限公司 | High-temperature-resistant high-pressure-resistant composite material thermal insulation plate and manufacturing method thereof |
-
2014
- 2014-04-25 CN CN201410171541.0A patent/CN103964745B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710302A (en) * | 2005-06-28 | 2005-12-21 | 河北星月制动元件有限公司 | Reinforced brake lining |
| CN101597476A (en) * | 2008-06-05 | 2009-12-09 | 比亚迪股份有限公司 | A kind of micropore friction material and preparation method thereof |
| CN101429981A (en) * | 2008-12-15 | 2009-05-13 | 重庆红宇摩擦制品有限公司 | Brake shoe used for high-strength bi-component environmental-protecting car and method for producing the same |
| EP2378152A1 (en) * | 2010-11-04 | 2011-10-19 | Kematis Projects Limited | Heat-insulating component for brake assembly |
| CN103183488A (en) * | 2011-12-29 | 2013-07-03 | 上海壬丰复合材料有限公司 | High-temperature-resistant high-pressure-resistant composite material thermal insulation plate and manufacturing method thereof |
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| CN103964745A (en) | 2014-08-06 |
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Effective date of registration: 20211123 Address after: 201399 area 3, building 3, no.1035 xuanhuang Road, Pudong New Area, Shanghai Patentee after: Shanghai Renfeng New Material Technology Co.,Ltd. Address before: 201205 No. 88 fish pond road, Huang Lou, Chuansha Town, Shanghai, Pudong New Area Patentee before: SHANGHAI RENPHEN COMPOSITE MARERIALS Co.,Ltd. |