CN105650171A - High-abrasion-proof granules with large porosity and preparation method of high-abrasion-proof granules - Google Patents
High-abrasion-proof granules with large porosity and preparation method of high-abrasion-proof granules Download PDFInfo
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- CN105650171A CN105650171A CN201510720082.1A CN201510720082A CN105650171A CN 105650171 A CN105650171 A CN 105650171A CN 201510720082 A CN201510720082 A CN 201510720082A CN 105650171 A CN105650171 A CN 105650171A
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Abstract
The invention provides high-abrasion-proof granules with large porosity and a preparation method of the high-abrasion-proof granules. The preparation method comprises the following steps: evenly mixing raw materials including calcium carbonate crystal whiskers, cryolite, lithopone, crystalline flake graphite, kieselguhr, fibrous sepiolite, white vermiculite, expanded graphite, tire powder and an adhesive; feeding into a double-roll rubber open mill for smelting, and fusing and plasticizing the raw materials; and pulverizing the plasticized materials into granules with grain sizes of 8-20 meshes so as to obtain the product of the invention. The high-abrasion-proof granules have the advantages that after the granules are mixed into a friction plate of a brake block in a certain proportion, hardness and compactness (density) of the friction plate can be reduced effectively, and the friction plate can absorb noises generated when the friction plate is in contact with a brake disc during working so as to fulfill a noise reduction function. The brake block mixed with the granules not only has high-abrasion-proof performance, but also has good high-temperature decay-resistant capability.
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 high abrasion-proof particle material and its preparation method having relatively air porosity.
Background technology
Breaking system is one of security system the most important on automobile, and brake facing is the parts that to have suffered in breaking system important, it can directly have influence on the reliability haveing suffered breaking system, breaking system defines friction pair by brake facing and brake flange phase mutual friction, produce braking moment, the kinetic energy of automobile is converted into heat energy, and temperature during braking can rise to 300��400 DEG C.
Conventional brake facing is divided into:
1, asbestos type, owing to fibrous magnesium silicate has high strength and high temperature resistant, therefore meets the requirement of brake facing and clutch plate, has the anti-tensile ability of fiber and the hardness of senior metal material and wear resistance simultaneously; But owing to the asbestos capacity of heat transmission is poor especially, Reusability rear brake can make heat pile up in brake facing, after brake facing heating, its braking ability will change, produce same friction and damping force can need more to step on brake number of times, if brake facing reaches certain temperature, brake failure will be caused;
2, semi-metal type, main adopts coarse Steel Wool as the big mixture of reinforced fibers and important frictional coefficient, and major advantage is to adapt to normal operation at relatively high temperatures, but noise is too big, and the wear rate of brake flange is bigger;
3, without asbestos organic type, mainly with glass fibre, aromatic polyester fiber and other fibers as reinforcement material, its performance depends primarily on type and other mixture of fiber, and advantage is without the ash fouling that falls, feature that noise is little, shortcoming be wear resistance and high temperature anti-ageing move back indifferent.
Summary of the invention
An object of the present invention is the above-mentioned deficiency overcoming prior art, and provides a kind of high abrasion-proof particle material having relatively air porosity.
The technical scheme realizing foregoing invention object of the present invention is: a kind of high abrasion-proof particle material having relatively air porosity, and it is adopted and is prepared from the following method:
Formula comprises: calcium carbonate crystal whisker 10-15 weight part, sodium aluminum fluoride 4-7 weight part, zinc sulfide white 4-7 weight part, crystalline flake graphite 4-7 weight part, diatomite 30-40 weight part, fibrous sepiolite 7-12 weight part, white vermiculite 5-10 weight part, expanded graphite 4-7 weight part, tyre talc 3-5 weight part, sizing agent 9-11 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: calcium carbonate crystal whisker 10 weight part, sodium aluminum fluoride 4 weight part, zinc sulfide white 4 weight part, crystalline flake graphite 4 weight part, diatomite 30 weight part, fibrous sepiolite 7 weight part, white vermiculite 5 weight part, expanded graphite 4 weight part, tyre talc 3 weight part, sizing agent 9 weight part.
The present invention further technical scheme be:
Formula comprises: calcium carbonate crystal whisker 15 weight part, sodium aluminum fluoride 7 weight part, zinc sulfide white 7 weight part, crystalline flake graphite 7 weight part, diatomite 40 weight part, fibrous sepiolite 12 weight part, white vermiculite 10 weight part, expanded graphite 7 weight part, tyre talc 5 weight part, sizing agent 11 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 abrasion-proof particle material having relatively air porosity.
The technical scheme realizing foregoing invention object of the present invention is: the preparation method of a kind of high abrasion-proof particle material having relatively air porosity:
Formula comprises: calcium carbonate crystal whisker 10-15 weight part, sodium aluminum fluoride 4-7 weight part, zinc sulfide white 4-7 weight part, crystalline flake graphite 4-7 weight part, diatomite 30-40 weight part, fibrous sepiolite 7-12 weight part, white vermiculite 5-10 weight part, expanded graphite 4-7 weight part, tyre talc 3-5 weight part, sizing agent 9-11 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: calcium carbonate crystal whisker 10 weight part, sodium aluminum fluoride 4 weight part, zinc sulfide white 4 weight part, crystalline flake graphite 4 weight part, diatomite 30 weight part, fibrous sepiolite 7 weight part, white vermiculite 5 weight part, expanded graphite 4 weight part, tyre talc 3 weight part, sizing agent 9 weight part.
The present invention further technical scheme be:
Formula comprises: calcium carbonate crystal whisker 15 weight part, sodium aluminum fluoride 7 weight part, zinc sulfide white 7 weight part, crystalline flake graphite 7 weight part, diatomite 40 weight part, fibrous sepiolite 12 weight part, white vermiculite 10 weight part, expanded graphite 7 weight part, tyre talc 5 weight part, sizing agent 11 weight part.
The present invention compared with prior art tool have the following advantages:
Can effectively reduce hardness and the degree of compactness (density) of friction plate after the present invention is mixed with certain proportion the friction plate of brake facing, friction plate can be made operationally to absorb the noise produced when contacting with brake flange to reach the function fallen and make an uproar; The brake facing mixing particulate material of the present invention not only has high-wearing feature, and also has the good anti-ageing ability of moving back of high temperature.
Below by way of specific embodiment, the invention will be further described.
Embodiment
Embodiment 1:
The high abrasion-proof particle material having relatively air porosity, it is adopted and is prepared from the following method:
Formula comprises: calcium carbonate crystal whisker 10 weight part, sodium aluminum fluoride 4 weight part, zinc sulfide white 4 weight part, crystalline flake graphite 4 weight part, diatomite 30 weight part, fibrous sepiolite 7 weight part, white vermiculite 5 weight part, expanded graphite 4 weight part, tyre talc 3 weight part, sizing agent 9 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:
The high abrasion-proof particle material having relatively air porosity, it is adopted and is prepared from the following method:
Formula comprises: calcium carbonate crystal whisker 15 weight part, sodium aluminum fluoride 7 weight part, zinc sulfide white 7 weight part, crystalline flake graphite 7 weight part, diatomite 40 weight part, fibrous sepiolite 12 weight part, white vermiculite 10 weight part, expanded graphite 7 weight part, tyre talc 5 weight part, sizing agent 11 weight part.
Its preparation technology is identical with embodiment 1.
Embodiment 3:
The preparation method having the high abrasion-proof particle material of relatively air porosity, its formula comprises: calcium carbonate crystal whisker 10 weight part, sodium aluminum fluoride 4 weight part, zinc sulfide white 4 weight part, crystalline flake graphite 4 weight part, diatomite 30 weight part, fibrous sepiolite 7 weight part, white vermiculite 5 weight part, expanded graphite 4 weight part, tyre talc 3 weight part, sizing agent 9 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:
The preparation method having the high abrasion-proof particle material of relatively air porosity, its formula comprises: calcium carbonate crystal whisker 15 weight part, sodium aluminum fluoride 7 weight part, zinc sulfide white 7 weight part, crystalline flake graphite 7 weight part, diatomite 40 weight part, fibrous sepiolite 12 weight part, white vermiculite 10 weight part, expanded graphite 7 weight part, tyre talc 5 weight part, sizing agent 11 weight part.
Its preparation technology is identical with embodiment 3.
Claims (6)
1. the high abrasion-proof particle material having relatively air porosity, is characterized in that adopting and is prepared from the following method:
Formula includes: calcium carbonate crystal whisker 10-15 weight part, sodium aluminum fluoride 4-7 weight part, zinc sulfide white 4-7 weight part, crystalline flake graphite 4-7 weight part, diatomite 30-40 weight part, fibrous sepiolite 7-12 weight part, white vermiculite 5-10 weight part, expanded graphite 4-7 weight part, tyre talc 3-5 weight part, sizing agent 9-11 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. a kind of high abrasion-proof particle material having relatively air porosity as claimed in claim 1, is characterized in that formula includes: calcium carbonate crystal whisker 10 weight part, sodium aluminum fluoride 4 weight part, zinc sulfide white 4 weight part, crystalline flake graphite 4 weight part, diatomite 30 weight part, fibrous sepiolite 7 weight part, white vermiculite 5 weight part, expanded graphite 4 weight part, tyre talc 3 weight part, sizing agent 9 weight part.
3. a kind of high abrasion-proof particle material having relatively air porosity as claimed in claim 1, is characterized in that formula includes: calcium carbonate crystal whisker 15 weight part, sodium aluminum fluoride 7 weight part, zinc sulfide white 7 weight part, crystalline flake graphite 7 weight part, diatomite 40 weight part, fibrous sepiolite 12 weight part, white vermiculite 10 weight part, expanded graphite 7 weight part, tyre talc 5 weight part, sizing agent 11 weight part.
4. the preparation method having the high abrasion-proof particle material of relatively air porosity, is characterized in that formula includes: calcium carbonate crystal whisker 10-15 weight part, sodium aluminum fluoride 4-7 weight part, zinc sulfide white 4-7 weight part, crystalline flake graphite 4-7 weight part, diatomite 30-40 weight part, fibrous sepiolite 7-12 weight part, white vermiculite 5-10 weight part, expanded graphite 4-7 weight part, tyre talc 3-5 weight part, sizing agent 9-11 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 a kind of high abrasion-proof particle material having relatively air porosity as claimed in claim 4, is characterized in that formula includes: calcium carbonate crystal whisker 10 weight part, sodium aluminum fluoride 4 weight part, zinc sulfide white 4 weight part, crystalline flake graphite 4 weight part, diatomite 30 weight part, fibrous sepiolite 7 weight part, white vermiculite 5 weight part, expanded graphite 4 weight part, tyre talc 3 weight part, sizing agent 9 weight part.
6. the preparation method of a kind of high abrasion-proof particle material having relatively air porosity as claimed in claim 4, is characterized in that formula includes: calcium carbonate crystal whisker 15 weight part, sodium aluminum fluoride 7 weight part, zinc sulfide white 7 weight part, crystalline flake graphite 7 weight part, diatomite 40 weight part, fibrous sepiolite 12 weight part, white vermiculite 10 weight part, expanded graphite 7 weight part, tyre talc 5 weight part, sizing agent 11 weight part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014107040279 | 2014-11-30 | ||
| CN201410704027 | 2014-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105650171A true CN105650171A (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510720082.1A Withdrawn CN105650171A (en) | 2014-11-30 | 2015-10-30 | High-abrasion-proof granules with large porosity and preparation method of high-abrasion-proof granules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105650171A (en) |
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2015
- 2015-10-30 CN CN201510720082.1A patent/CN105650171A/en not_active Withdrawn
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Application publication date: 20160608 |