CN101126427A - Friction plate, and its uses, production process and dedicated mould - Google Patents
Friction plate, and its uses, production process and dedicated mould Download PDFInfo
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- CN101126427A CN101126427A CNA2007101218954A CN200710121895A CN101126427A CN 101126427 A CN101126427 A CN 101126427A CN A2007101218954 A CNA2007101218954 A CN A2007101218954A CN 200710121895 A CN200710121895 A CN 200710121895A CN 101126427 A CN101126427 A CN 101126427A
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- seaming chuck
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 6
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 6
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 5
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002006 petroleum coke Substances 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000008117 stearic acid Substances 0.000 claims abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 238000004826 seaming Methods 0.000 claims description 34
- 239000002994 raw material Substances 0.000 claims description 8
- 239000003082 abrasive agent Substances 0.000 claims description 6
- 230000000116 mitigating effect Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 239000004113 Sepiolite Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 239000009719 polyimide resin Substances 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 4
- 230000003137 locomotive effect Effects 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 1
- 240000003936 Plumbago auriculata Species 0.000 abstract 1
- 239000002956 ash Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
- 229920006122 polyamide resin Polymers 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 101100002917 Caenorhabditis elegans ash-2 gene Proteins 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- CWBIFDGMOSWLRQ-UHFFFAOYSA-N trimagnesium;hydroxy(trioxido)silane;hydrate Chemical group O.[Mg+2].[Mg+2].[Mg+2].O[Si]([O-])([O-])[O-].O[Si]([O-])([O-])[O-] CWBIFDGMOSWLRQ-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The execution mode of the invention provides a friction plate and the application technology, production technology and the special mold; the friction plate includes a glass cloth and a wearing course, the ingredients and content of the wearing course are as follows: 15-30 shares of polyamide resin; 1.5-3 shares of mica ferric oxide; 4-8 copper fiber; 10-17 shares of plumbago; 1-5 shares of friction powder; 1.5-3 shares of magnesia; 1-4 shares of petroleum coke; 13-30 shares of meerschaum; 0.1-2 shares of stearic acid; 2-15 shares of silicon ashes; 1-12 shares of short glass fiber; 2-12 shares of supramoly and 1-10 shares of natural cellulose fiber. The execution mode of the invention further provides an application technology, production technology and the special mold of the friction plate. The friction plate has the advantages of wear-resistant, fatigue-resistant, and corrosion-resistant, and when in use, the special mold can reduce the manufacturing cost of the friction plate.
Description
Technical field
The present invention relates to a kind of friction plate and application thereof, production technology and specialized mould, relate in particular to a kind of friction plate and application, production technology and specialized mould of locomotive shock mitigation system.
Background technique
Friction plate is high-tech railway vehicle accessory, is used for the shock mitigation system of railway high speed heavy-duty vehicle, and in order to satisfy the requirement of speed-raising back to the vehicle damping system, the Ministry of Railways proposes to adopt the vitals of polymer composite friction plate as shock mitigation system.
The main prescription of wearing layer is chrysotile asbestos fibre or sepiolite fibre or the pre-oxidized fibers of 35%-45% in the friction plate of the polymer composite that uses in the existing railway system, 1%-8% copper fiber or Steel Fibre; 17%-23% phenolic resin or cashew nut oil modified alkyd resin or nitrile rubber modified phenolic resin; 6%-13% molybdenum disulfide; 8%-15% graphite, above-mentioned percentage all is weight percentage, and the weight percentage sum of each component is 100%; With above-mentioned raw material according to weight percentage weighing and burden, mixing; With polyimide resin and N, the dinethylformamide solvent is prepared into rubber cement after mixing according to the ratio of 1kg: 1.5L; Alkali-free glass cloth is soaked in the rubber cement, dry immediately, cutting moulding behind the resin content 20%-40% formation glass cloth on the every square meter glass cloth in oven dry back; The raw material that mix and the glass cloth of cutting moulding are put into thermoforming mould compression moulding, be cured afterwards, polish, form friction plate after the post-processed such as boring, blaze knowledge.
In realizing process of the present invention, the inventor finds above-mentioned friction plate, and there are the following problems:
Because the material property in the friction plate in the wearing layer is excellent inadequately, so friction plate friction factor height of making, easy to wear, simultaneously fatigue resistance, corrosion resistance, damping performance are all poor, simultaneously the surperficial easy-rupturing of friction plate, fall piece, these shortcomings have seriously influenced the working life of friction plate.
Summary of the invention
The present invention is according to above-mentioned technical problem, embodiment of the present invention provides a kind of friction plate and application, production technology and specialized mould, the specific embodiment of the invention improves the performances such as wear-resistant, fatigue resistance, corrosion resistance, vibration damping, damping property of friction plate by the prescription of adjusting friction plate, also adjusted the friction factor of friction plate simultaneously.
For achieving the above object, the specific embodiment of the invention provides a kind of friction plate, comprises glass cloth and wearing layer, and component and weight percentage that described wearing layer comprises are as follows:
Polyimide resin 15-30 part;
Micaceous iron oxide 1.5-3 part;
Copper fiber 4-8 part;
Graphite 10-17 part;
Friction powder 1-5 part;
Magnesium oxide 1.5-3 part;
Petroleum coke 1-4 part;
Sepiolite 13-30 part;
Stearic acid 0.1-2 part;
Wollastonite 2-15 part;
Staple glass fibre 1-12 part;
Molybdenum disulfide 2-12 part;
Native cellulose fibre 1-10 part.
The specific embodiment of the invention also provides a kind of production technology of friction plate, comprises following steps:
With the wearing layer raw material fully mix, drying makes high-abrasive material;
In temperature is 190 ℃-250 ℃, and pressure is glass cloth and the 180g-300g high-abrasive material of putting into the 16-30 layer in the mould of 15-25Mpa successively, compression moulding after exhaust 6-15 time and pressurize 20-60 minute;
Friction plate after the moulding is put into special-purpose curing oven after being cured 3-8 hour under 180 ℃ of-230 ℃ of temperature, form friction plate.
The specific embodiment of the invention is providing a kind of specialized mould of friction plate, described mould comprises die cavity, outer die body, fixedly seaming chuck and base plate, described fixedly seaming chuck can cooperate the compacting friction plate with the film chamber, it is characterized in that, described mould also comprises a plurality of movable push-down heads and a plurality of movable seaming chuck, described movable seaming chuck and movable push-down head can move in die cavity and can cooperate with fixing seaming chuck suppresses friction plate, described movable seaming chuck, movable push-down head, fixedly seaming chuck and base plate from top to bottom or to close be fixing seaming chuck in position from left to right, movable push-down head, movable seaming chuck, movable push-down head, base plate.
The specific embodiment of the invention is providing a kind of application of friction plate, and described friction plate is applied to the shock mitigation system of locomotive.
By the above-mentioned technological scheme that provides as can be seen, the specific embodiment of the invention improves the performances such as wear-resistant, fatigue resistance, corrosion resistance, vibration damping, damping property of friction plate by the prescription of adjusting friction plate, also adjusted the friction factor of friction plate simultaneously.
Description of drawings
Fig. 1 is the structural representation of the described specialized mould of the specific embodiment of the invention.
Embodiment
The specific embodiment of the invention improves the performances such as wear-resistant, fatigue resistance, corrosion resistance, vibration damping, damping property of friction plate by the prescription of adjusting friction plate, also adjusted the friction factor of friction plate simultaneously.Below will be by the detailed explanation the present invention of specific embodiment, in the following description, unless stated otherwise outside, all percentages are the percentage of weight.
Embodiment 1: embodiment of the present invention provides a kind of friction plate, comprises glass cloth and wearing layer, and component and weight percentage that its wearing layer comprises are as follows: polyimide resin 15-30 part; Micaceous iron oxide 1.5-3 part; Copper fiber 4-8 part; Graphite 10-17 part; Friction powder 1-5 part; Magnesium oxide 1.5-3 part; Petroleum coke 1-4 part; Sepiolite 13-30 part; Stearic acid 0.1-2 part; Silicon ash 2-15 part; Staple glass fibre 1-12 part; Molybdenum disulfide 2-12 part; Native cellulose fibre 1-10 part.
By evidence, the friction plate that the employing above-mentioned raw materials is made has wear-resistant, low abrasion, friction factor is suitable, it is good to have good fatigue resistance, corrosion resistance, vibration damping height, damping property, has impact resistance preferably, good weatherability, can be used for the big environment of temperature variation for a long time, it is wide to be fit to very much China region, the environmental quality that regional disparity is big.Also solved the problem of falling piece, fracture of friction plate simultaneously.
Can obtain friction plate with content in the table 1 in the present embodiment 1
Table 1
Unit: part
| Component | Embodiment 11 | Embodiment 12 | Embodiment 13 | Embodiment 14 | Embodiment 15 | Embodiment 16 |
| Polyimide resin | 15 | 18 | 21 | 24 | 26 | 30 |
| Micaceous iron oxide | 3 | 2.5 | 2.3 | 1.8 | 1.6 | 1.5 |
| The copper fiber | 4.4 | 5 | 5.4 | 6.5 | 7 | 8 |
| Graphite | 16 | 15 | 13.7 | 12 | 11.5 | 10 |
| The friction powder | 5 | 4.5 | 3 | 2.5 | 1.8 | 1 |
| Magnesium oxide | 1.5 | 2 | 2.1 | 2.5 | 2.8 | 3 |
| Petroleum coke | 4 | 3.5 | 3 | 2.2 | 1.5 | 1 |
| Sepiolite | 26 | 23 | 21.5 | 20 | 18 | 15 |
| Stearic acid | 0.1 | 0.5 | 1 | 1.5 | 1.8 | 2 |
| The silicon ash | 2 | 5 | 7 | 9 | 12 | 14.5 |
| Staple glass fibre | 12 | 9 | 7 | 6 | 4 | 1 |
| Molybdenum disulfide | 2 | 4 | 7 | 8 | 10 | 12 |
| Native cellulose fibre | 9 | 8 | 6 | 4 | 2 | 1 |
Embodiment 2: the specific embodiment of the invention also provides the production technology of the friction plate among a kind of embodiment of preparation 1, and the raw material of friction plate can take by weighing by the raw material proportion among the embodiment 1 in the present embodiment, and the production technology of present embodiment comprises following steps:
With the wearing layer raw material fully mix, drying makes high-abrasive material; Glass cloth and 180g-300g high-abrasive material, in exhaust 6-15 time and compression moulding after pressurize 20-60 minute;
Friction plate after the moulding is put into special-purpose curing oven after being cured 3-8 hour under 180 ℃ of-230 ℃ of temperature, form friction plate.
In actual production, finish can also be cured friction plate after the above-mentioned steps, polish, post-processed such as boring, blaze knowledge.Make that the performance of friction plate is more outstanding.
Embodiment 3: as shown in Figure 1, the specific embodiment of the present invention also provides a kind of specialized mould of friction plate, this mould comprises die cavity 2, outer die body 10, fixedly seaming chuck 1 and base plate 11, fixedly seaming chuck 1 cooperates the compacting friction plate with film chamber 2, this mould also comprises a plurality of movable push-down heads 7 and at least one movable seaming chuck 3, movable seaming chuck 3 and movable push-down head 7 can move die cavity 2 in and cooperate with fixing seaming chuck 1 and to suppress friction plate, movable seaming chuck, movable push-down head, fixedly seaming chuck and base plate from top to bottom or to close be fixing seaming chuck in position from left to right, movable push-down head, movable seaming chuck, movable push-down head, base plate.Because this mould is provided with a plurality of movable push-down heads 7, so just can suppress a plurality of friction plates simultaneously aborning, has improved the manufacturing efficiency of friction plate greatly.
Above-mentioned movable seaming chuck 3 and movable push-down head 7 can move in die cavity 1 and can move up and down or move left and right in die cavity 1 for movable seaming chuck 3 and movable push-down head 7, its mode that moves depends on the position relation of movable seaming chuck 3 and movable push-down head 7, closing as the position of movable seaming chuck 3 and movable push-down head 7 is that movable seaming chuck 3 is last, movable push-down head 7 is following, then for moving up and down, closing as the position of movable seaming chuck 3 and movable push-down head 7 is that movable seaming chuck 3 is on a left side, movable push-down head 7 then is a move left and right on the right side.
Die cavity 2 is spliced by a plurality of films chamber piece 8, and die cavity 2 and outer film body 10 are detachable.This removably can be bolt connection or other dismountable fixedly connected mode.Because the die cavity 2 in the described mould of present embodiment is detachable, so when die cavity 2 serious wear, only need to change die cavity 2 and need not to change outer film body 10, so just prolonged the time of mould use, reduced the cost of production of friction plate.
The specialized mould of the application of the invention embodiment has improved the manufacturing efficiency of friction plate, has prolonged the time that mould uses, and has reduced the cost of production of friction plate.
The specific embodiment of the invention also provides a kind of application of friction plate, and friction plate is applied to the shock mitigation system of locomotive.
In sum, friction plate that the specific embodiment of the invention provided and application thereof, production technology and specialized mould, can improve the performance such as wear-resistant, fatigue resistance, corrosion resistance, vibration damping, damping property of friction plate, also adjust the friction factor of friction plate simultaneously; Improve the manufacturing efficiency of friction plate, improved the service time of mould, reduced the cost of production of friction plate.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the embodiment of the invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a friction plate comprises glass cloth and wearing layer, it is characterized in that, the component that described wearing layer comprises is as follows:
Polyimide resin 15-30 part;
Micaceous iron oxide 1.5-3 part;
Copper fiber 4-8 part;
Graphite 10-17 part;
Friction powder 1-5 part;
Magnesium oxide 1.5-3 part;
Petroleum coke 1-4 part;
Sepiolite 13-30 part;
Stearic acid 0.1-2 part;
Silicon ash 2-15 part;
Staple glass fibre 1-12 part;
Molybdenum disulfide 2-12 part;
Native cellulose fibre 1-10 part.
2. the production technology of a friction plate as claimed in claim 1 is characterized in that, comprises following steps:
With the wearing layer raw material fully mix, drying makes high-abrasive material;
In temperature is 190 ℃-250 ℃, and pressure is glass cloth and the 180g-300g high-abrasive material of putting into the 16-30 layer in the mould of 15-25Mpa successively, compression moulding after exhaust 6-15 time and pressurize 20-60 minute;
Friction plate after the moulding is put into special-purpose curing oven after being cured 3-8 hour under 180 ℃ of-230 ℃ of temperature, form friction plate.
3. method as claimed in claim 2 is characterized in that, described method also comprise to friction plate polish, boring, blaze knows.
4. the specialized mould of a friction plate as claimed in claim 1, described mould comprises die cavity, outer die body, fixedly seaming chuck and base plate, described fixedly seaming chuck cooperates the compacting friction plate with the film chamber, it is characterized in that, described mould also comprises a plurality of movable push-down heads and at least one movable seaming chuck, described movable seaming chuck and movable push-down head move in die cavity and cooperate with fixing seaming chuck suppresses friction plate, described movable seaming chuck, movable push-down head, fixedly seaming chuck and base plate from top to bottom or to close be fixing seaming chuck in position from left to right, movable push-down head, movable seaming chuck, movable push-down head, base plate.
5. mould as claimed in claim 4 is characterized in that, described die cavity is spliced by a plurality of films chamber piece, and described die cavity is detachable with outer film body.
6. the application of a friction plate as claimed in claim 1 is characterized in that, described friction plate is applied to the shock mitigation system of locomotive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101218954A CN100513820C (en) | 2007-09-17 | 2007-09-17 | Friction plate, and its uses, production process and dedicated mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101218954A CN100513820C (en) | 2007-09-17 | 2007-09-17 | Friction plate, and its uses, production process and dedicated mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126427A true CN101126427A (en) | 2008-02-20 |
| CN100513820C CN100513820C (en) | 2009-07-15 |
Family
ID=39094529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101218954A Active CN100513820C (en) | 2007-09-17 | 2007-09-17 | Friction plate, and its uses, production process and dedicated mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100513820C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718321B (en) * | 2009-12-04 | 2012-05-09 | 北京瑞斯福科技有限公司 | Brake shoe production method, brake shoe, friction piece and applications thereof |
| CN102617871A (en) * | 2012-04-01 | 2012-08-01 | 北京瑞斯福科技有限公司 | Method for preparing macromolecular composite friction material |
| CN103911118A (en) * | 2014-04-01 | 2014-07-09 | 南京航空航天大学 | Polyimide friction material for rotary ultrasonic motor and preparation method of polyimide friction material |
| CN112981171A (en) * | 2021-03-16 | 2021-06-18 | 郑州轻工业大学 | Copper-based powder metallurgy friction material containing mixed graphite and preparation method |
-
2007
- 2007-09-17 CN CNB2007101218954A patent/CN100513820C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718321B (en) * | 2009-12-04 | 2012-05-09 | 北京瑞斯福科技有限公司 | Brake shoe production method, brake shoe, friction piece and applications thereof |
| CN102617871A (en) * | 2012-04-01 | 2012-08-01 | 北京瑞斯福科技有限公司 | Method for preparing macromolecular composite friction material |
| CN102617871B (en) * | 2012-04-01 | 2014-03-26 | 北京瑞斯福高新科技股份有限公司 | Method for preparing macromolecular composite friction material |
| CN103911118A (en) * | 2014-04-01 | 2014-07-09 | 南京航空航天大学 | Polyimide friction material for rotary ultrasonic motor and preparation method of polyimide friction material |
| CN112981171A (en) * | 2021-03-16 | 2021-06-18 | 郑州轻工业大学 | Copper-based powder metallurgy friction material containing mixed graphite and preparation method |
| CN112981171B (en) * | 2021-03-16 | 2022-06-17 | 郑州轻工业大学 | Copper-based powder metallurgy friction material containing mixed graphite and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100513820C (en) | 2009-07-15 |
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Denomination of invention: Friction plate, and its uses, production process and dedicated mould Effective date of registration: 20130217 Granted publication date: 20090715 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Beijing Qiuzhiyi Data Co., Ltd. Registration number: 2013990000098 |
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Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Beikong science and technology building 1006B Patentee after: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD. Address before: 102200, A316, Zhongxing Road, 10 Changping District science and Technology Park, Beijing Patentee before: Beijing Qiuzhiyi Data Co., Ltd. |
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Date of cancellation: 20140211 Granted publication date: 20090715 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD. Registration number: 2013990000098 |
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Denomination of invention: Friction plate, and its uses, production process and dedicated mould Effective date of registration: 20140211 Granted publication date: 20090715 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD. Registration number: 2014990000098 |
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Date of cancellation: 20150210 Granted publication date: 20090715 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD. Registration number: 2014990000098 |
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Denomination of invention: Friction plate, and its uses, production process and dedicated mould Effective date of registration: 20150211 Granted publication date: 20090715 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD. Registration number: 2015990000132 |
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Denomination of invention: Friction plate, and its uses, production process and dedicated mould Effective date of registration: 20150930 Granted publication date: 20090715 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD. Registration number: 2015990000839 |
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