CN105645839A - Composite whisker containing granule with large porosity and high thermal conductivity and preparation method thereof - Google Patents
Composite whisker containing granule with large porosity and high thermal conductivity and preparation method thereof Download PDFInfo
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- CN105645839A CN105645839A CN201510719861.XA CN201510719861A CN105645839A CN 105645839 A CN105645839 A CN 105645839A CN 201510719861 A CN201510719861 A CN 201510719861A CN 105645839 A CN105645839 A CN 105645839A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a composite whisker containing granule with a large porosity and a high thermal conductivity and a preparation method thereof. The preparation method comprises the following steps: evenly mixing the following components in parts by weight: 20 parts of diatomite, 10 parts of potassium hexatitanate whisker, 10 parts of carbon fiber, 10 parts of flake graphite, 9 parts of adhesive, 5 parts of porous iron powder, 5 parts of fibrous meerschaum, 5 parts of white vermiculite, and 3 parts of tire powder, adding the mixture into a double roll rubber open mixing machine, carrying out smelting to melt and plasticize raw materials, wherein the temperature of roller surface is 50 to 60 DEG C, and the smelting time is 20 to 30 minutes; and grinding plasticized raw materials into granules with a particle size of 8 to 20 meshes. The granules can be added into friction sheet of brake pad according to a certain ratio so as to effectively reduce the hardness and density degree of friction sheet, moreover, the friction sheet can absorb noise at work, the automobile stability is improved, the dust falling is prevented, and the friction sheet also has an excellent heat conductive performance.
Description
Technical field
The present invention relates to the material of friction plate in a kind of automobile brake sheet and its preparation method, particularly a kind of the high thermal conductivity particulate material and its preparation method that have air porosity containing composite crystal palpus.
Background technology
Breaking system is one of security system the most important on automobile, and brake facing is parts important in whole breaking system, the quality of automobile brake perfrmance is played a decisive role. Brake facing is generally made up of steel plate, bonding thermofin and friction plate, and during brake, friction plate is compressed on brake flange to produce to rub, the kinetic energy of automobile is converted into heat energy, and temperature during braking can rise to 300��400 DEG C.
Friction plate is made up of friction materials and tackiness agent, friction materials is matrix material, comprise metallic substance, filamentary material and mineral material, the use of these materials makes friction materials generally have higher density and degree of compactness, void content is extremely low even close to zero, generation noise inevitable during brake, abrasion brake flange; And at present friction plate framework material for automobile brake sheet generally uses asbestos, steel wool, sepiolite fibre, complex mineral wool etc., there is unstable properties in these formulas, not environmentally, noise, fall the problems such as ash; Most important, the quality of its heat conductivility of thermally conductive material in friction plate directly affects the quality of brake facing, and can affect the braking effect of brake facing when high temperature. The thermally conductive material heat conductivility generally adopted in existing friction plate is poor, in brake flat production process, is that friction plate easily produces localized heat swelling in hot pressing specifically, causes friction plate to bubble, is out of shape, reduces the good article rate of brake facing; In brake facing working process, being when continuously brake specifically, friction plate temperature rapid rise, it is easy to produce localized heat swelling, causes friction plate to bubble, distortion, thus with brake flange locking.
Summary of the invention
An object of the present invention is the above-mentioned deficiency overcoming prior art, and provides a kind of high thermal conductivity particulate material having air porosity containing composite crystal palpus.
The technical scheme realizing foregoing invention object of the present invention is: a kind of high thermal conductivity particulate material having air porosity containing composite crystal palpus, and it is adopted and is prepared from the following method:
Formula comprises: diatomite 20-25 weight part, crystal whisker of hexa potassium titanate 10-15 weight part, carbon fiber 10-15 weight part, crystalline flake graphite 10-15 weight part, sizing agent 9-11 weight part, foam ferrous powder 5-10 weight part, fibrous sepiolite 5-10 weight part, white vermiculite 5-10 weight part, tyre talc 3-5 weight part;
Its step of preparation process is as follows:
The first step: the group part and the respective weight part number that contain by material are prepared burden;
2nd step: mixed by raw material, drops into two roller rubber mixing mill and carries out melting, make raw materials melt and plastify; Roller surface temperature is 50-60 DEG C; Smelting time is 20-30min;
3rd step: become particle diameter to be 8-20 object particle the material disintegrating after plasticizing.
The further technical scheme of the present invention is:
Formula comprises: diatomite 20 weight part, crystal whisker of hexa potassium titanate 10 weight part, carbon fiber 10 weight part, crystalline flake graphite 10 weight part, sizing agent 9 weight part, foam ferrous powder 5 weight part, fibrous sepiolite 5 weight part, white vermiculite 5 weight part, tyre talc 3 weight part.
The further technical scheme of the present invention can also be:
Formula comprises: diatomite 25 weight part, crystal whisker of hexa potassium titanate 15 weight part, carbon fiber 15 weight part, crystalline flake graphite 15 weight part, sizing agent 11 weight part, foam ferrous powder 10 weight part, fibrous sepiolite 10 weight part, white vermiculite 10 weight part, tyre talc 5 weight part.
The two of the object of the present invention are the above-mentioned deficiencies overcoming prior art, and provide the preparation method of a kind of high thermal conductivity particulate material having air porosity containing composite crystal palpus.
The technical scheme realizing foregoing invention object of the present invention is: the preparation method of a kind of high thermal conductivity particulate material having air porosity containing composite crystal palpus:
Formula comprises: diatomite 20-25 weight part, crystal whisker of hexa potassium titanate 10-15 weight part, carbon fiber 10-15 weight part, crystalline flake graphite 10-15 weight part, sizing agent 9-11 weight part, foam ferrous powder 5-10 weight part, fibrous sepiolite 5-10 weight part, white vermiculite 5-10 weight part, tyre talc 3-5 weight part;
Its step of preparation process is as follows:
The first step: the group part and the respective weight part number that contain by material are prepared burden;
2nd step: mixed by raw material, drops into two roller rubber mixing mill and carries out melting, make raw materials melt and plastify; Roller surface temperature is 50-60 DEG C; Smelting time is 20-30min;
3rd step: become particle diameter to be 8-20 object particle the material disintegrating after plasticizing.
The further technical scheme of the present invention is:
Formula comprises: diatomite 20 weight part, crystal whisker of hexa potassium titanate 10 weight part, carbon fiber 10 weight part, crystalline flake graphite 10 weight part, sizing agent 9 weight part, foam ferrous powder 5 weight part, fibrous sepiolite 5 weight part, white vermiculite 5 weight part, tyre talc 3 weight part.
The further technical scheme of the present invention can also be:
Formula comprises: diatomite 25 weight part, crystal whisker of hexa potassium titanate 15 weight part, carbon fiber 15 weight part, crystalline flake graphite 15 weight part, sizing agent 11 weight part, foam ferrous powder 10 weight part, fibrous sepiolite 10 weight part, white vermiculite 10 weight part, tyre talc 5 weight part.
The present invention compared with prior art tool have the following advantages:
During use, the present invention is mixed with certain proportion the friction plate of brake facing, can effectively reduce hardness and the degree of compactness of friction plate, friction plate can be made operationally to absorb noise, it is to increase vehicle steadily, anti-falling stop ash, also possess excellent heat conductivility.
Below by way of specific embodiment, the invention will be further described.
Embodiment
Embodiment 1:
Containing the high thermal conductivity particulate material having air porosity of composite crystal palpus, it is adopted and is prepared from the following method:
Formula comprises: diatomite 20 weight part, crystal whisker of hexa potassium titanate 10 weight part, carbon fiber 10 weight part, crystalline flake graphite 10 weight part, sizing agent 9 weight part, foam ferrous powder 5 weight part, fibrous sepiolite 5 weight part, white vermiculite 5 weight part, tyre talc 3 weight part.
Its step of preparation process is as follows:
The first step: the group part and the respective weight part number that contain by material are prepared burden;
2nd step: mixed by raw material, drops into two roller rubber mixing mill and carries out melting, make raw materials melt and plastify; Roller surface temperature is 50��60 DEG C; Smelting time is 20��30min;
3rd step: become particle diameter to be 8-20 object particle the material disintegrating after plasticizing.
Embodiment 2:
Containing the high thermal conductivity particulate material having air porosity of composite crystal palpus, it is adopted and is prepared from the following method:
Formula comprises: diatomite 25 weight part, crystal whisker of hexa potassium titanate 15 weight part, carbon fiber 15 weight part, crystalline flake graphite 15 weight part, sizing agent 11 weight part, foam ferrous powder 10 weight part, fibrous sepiolite 10 weight part, white vermiculite 10 weight part, tyre talc 5 weight part; Its preparation technology is identical with embodiment 1.
Embodiment 3:
Containing a preparation method for the high thermal conductivity particulate material having air porosity of composite crystal palpus, its formula comprises: diatomite 20 weight part, crystal whisker of hexa potassium titanate 10 weight part, carbon fiber 10 weight part, crystalline flake graphite 10 weight part, sizing agent 9 weight part, foam ferrous powder 5 weight part, fibrous sepiolite 5 weight part, white vermiculite 5 weight part, tyre talc 3 weight part;
Its step of preparation process is as follows:
The first step: the group part and the respective weight part number that contain by material are prepared burden;
2nd step: mixed by raw material, drops into two roller rubber mixing mill and carries out melting, make raw materials melt and plastify; Roller surface temperature is 50��60 DEG C; Smelting time is 20��30min;
3rd step: become particle diameter to be 8-20 object particle the material disintegrating after plasticizing.
Embodiment 4:
Containing a preparation method for the high thermal conductivity particulate material having air porosity of composite crystal palpus, its formula comprises: diatomite 25 weight part, crystal whisker of hexa potassium titanate 15 weight part, carbon fiber 15 weight part, crystalline flake graphite 15 weight part, sizing agent 11 weight part, foam ferrous powder 10 weight part, fibrous sepiolite 10 weight part, white vermiculite 10 weight part, tyre talc 5 weight part; Its preparation technology is identical with embodiment 3.
Claims (6)
1. containing composite crystal must the high thermal conductivity particulate material having air porosity, it is characterized in that adopting and be prepared from the following method:
Formula includes: diatomite 20-25 weight part, crystal whisker of hexa potassium titanate 10-15 weight part, carbon fiber 10-15 weight part, crystalline flake graphite 10-15 weight part, sizing agent 9-11 weight part, foam ferrous powder 5-10 weight part, fibrous sepiolite 5-10 weight part, white vermiculite 5-10 weight part, tyre talc 3-5 weight part;
Its step of preparation process is as follows:
The first step: the group part and the respective weight part number that contain by material are prepared burden;
2nd step: mixed by raw material, drops into two roller rubber mixing mill and carries out melting, make raw materials melt and plastify; Roller surface temperature is 50-60 DEG C; Smelting time is 20-30min;
3rd step: become particle diameter to be 8-20 object particle the material disintegrating after plasticizing.
2. as claimed in claim 1 containing composite crystal must the high thermal conductivity particulate material having air porosity, it is characterized in that adopting and be prepared from the following method:
Formula includes: diatomite 20 weight part, crystal whisker of hexa potassium titanate 10 weight part, carbon fiber 10 weight part, crystalline flake graphite 10 weight part, sizing agent 9 weight part, foam ferrous powder 5 weight part, fibrous sepiolite 5 weight part, white vermiculite 5 weight part, tyre talc 3 weight part.
3. as claimed in claim 1 containing composite crystal must the high thermal conductivity particulate material having air porosity, it is characterized in that adopting and be prepared from the following method:
Formula includes: diatomite 25 weight part, crystal whisker of hexa potassium titanate 15 weight part, carbon fiber 15 weight part, crystalline flake graphite 15 weight part, sizing agent 11 weight part, foam ferrous powder 10 weight part, fibrous sepiolite 10 weight part, white vermiculite 10 weight part, tyre talc 5 weight part.
4. contain a preparation method for the high thermal conductivity particulate material having air porosity of composite crystal palpus, it is characterized in that formula includes: diatomite 20-25 weight part, crystal whisker of hexa potassium titanate 10-15 weight part, carbon fiber 10-15 weight part, crystalline flake graphite 10-15 weight part, sizing agent 9-11 weight part, foam ferrous powder 5-10 weight part, fibrous sepiolite 5-10 weight part, white vermiculite 5-10 weight part, tyre talc 3-5 weight part;
Its step of preparation process is as follows:
The first step: the group part and the respective weight part number that contain by material are prepared burden;
2nd step: mixed by raw material, drops into two roller rubber mixing mill and carries out melting, make raw materials melt and plastify; Roller surface temperature is 50-60 DEG C; Smelting time is 20-30min;
3rd step: become particle diameter to be 8-20 object particle the material disintegrating after plasticizing.
5. the preparation method of the high thermal conductivity particulate material having air porosity containing composite crystal palpus as claimed in claim 4, is characterized in that including in formula: diatomite 20 weight part, crystal whisker of hexa potassium titanate 10 weight part, carbon fiber 10 weight part, crystalline flake graphite 10 weight part, sizing agent 9 weight part, foam ferrous powder 5 weight part, fibrous sepiolite 5 weight part, white vermiculite 5 weight part, tyre talc 3 weight part.
6. there is preparation method as claimed in claim 4 that fall and make an uproar with the anti-ageing superior thermal conductivity particulate material moving back function of high temperature, it is characterized in that formula includes: diatomite 25 weight part, crystal whisker of hexa potassium titanate 15 weight part, carbon fiber 15 weight part, crystalline flake graphite 15 weight part, sizing agent 11 weight part, foam ferrous powder 10 weight part, fibrous sepiolite 10 weight part, white vermiculite 10 weight part, tyre talc 5 weight part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014107040758 | 2014-11-30 | ||
| CN201410704075 | 2014-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645839A true CN105645839A (en) | 2016-06-08 |
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ID=56481765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510719861.XA Withdrawn CN105645839A (en) | 2014-11-30 | 2015-10-30 | Composite whisker containing granule with large porosity and high thermal conductivity and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105645839A (en) |
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2015
- 2015-10-30 CN CN201510719861.XA patent/CN105645839A/en not_active Withdrawn
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Application publication date: 20160608 |