CN109326940A - A kind of preparation method and preparation facilities of carbon brush for electric machine - Google Patents
A kind of preparation method and preparation facilities of carbon brush for electric machine Download PDFInfo
- Publication number
- CN109326940A CN109326940A CN201811183128.0A CN201811183128A CN109326940A CN 109326940 A CN109326940 A CN 109326940A CN 201811183128 A CN201811183128 A CN 201811183128A CN 109326940 A CN109326940 A CN 109326940A
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- Prior art keywords
- powder
- carbon brush
- electric machine
- purification
- preparation
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/215—Purification; Recovery or purification of graphite formed in iron making, e.g. kish graphite
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
Abstract
The embodiment of the present application shows the preparation method and preparation facilities of a kind of carbon brush for electric machine, is first ground up, sieved graphite powder, obtains just purifying graphite powder, and the just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, preset time is reacted, secondary purification graphite powder is obtained, binder is dissolved with solvent, the binder of dissolution is mixed evenly with the secondary purification graphite powder by predetermined ratio, solvent is evaporated off, obtains mixed-powder, the mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder, composite fibre material is added into the refinement mixed-powder, extrusion forming, obtains the carbon brush for electric machine；The preparation method that the present invention provides a kind of carbon brush for electric machine can substantially reduce the ash content of coal in graphite powder, enhance refining effect, reduce carbon brush and damage caused by motor when in use.
Description
Technical field
The present invention relates to graphite material technical field, in particular to the preparation method and preparation facilities of a kind of carbon brush for electric machine.
Background technique
Carbon brush is usually made of graphite, metal powder, molybdenum disulfide and tungsten disulfide with friction material.Carbon brush be motor or
The device that energy or signal are transmitted between generator or the fixed part and rotating part of other rotating machineries, is used in motor
On function component.Carbon brush use scope is very extensive, and automobile, electric tool, household electrical appliances, micro motor and large electric equipment etc. are all
It is a large amount of to use.All containing granularity be usually 1-500 microns of ash in graphite powder, including silica, aluminium oxide, iron oxide,
Manganese oxide, magnesia etc., these ash contents have different granularities, or even have big granularity ash, and the granularity of the ash contained is greater than
50 microns of carbon brush for electric machine often reduces commutating character, during motor operating, if ash enter carbon brush and rectifier it
Between, it is more likely that motor can be damaged.Often refining effect is bad for the method for purification graphite powder in the prior art, causes graphite powder
In the ash content of coal that contains it is larger, carbon brush using when motor is damaged.
Summary of the invention
To overcome the problems in correlation technique, the present invention provides the preparation method and preparation dress of a kind of carbon brush for electric machine
It sets, the ash content of coal in graphite powder can be substantially reduced, enhance refining effect, reduce carbon brush and damaged caused by motor when in use
Evil.
First aspect of the embodiment of the present invention discloses a kind of preparation method of carbon brush for electric machine, the preparation side of the carbon brush for electric machine
Method the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, instead
Preset time is answered, secondary purification graphite powder is obtained；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Optionally, the preset temperature is 1700 DEG C -2500 DEG C, and the preset time is at least 4 hours.
Optionally, it is described will it is described just purification graphite powder be placed in graphite purifying furnace after, the graphite purifying furnace is heated up
To 1800 DEG C, after reacting 2h, 1900 DEG C are continuously heating to, after reacting 2h, is continuously heating to 2500 DEG C, it is cooling after reacting 4h, it protects
Inert gas is removed after holding 10-20h.
Optionally, the inert gas is nitrogen or argon gas.
Optionally, the binder is copna resin.
Optionally, the additive amount of the composite fibre material is the 0.2-10% of graphite powder weight, the composite fibre material
Diameter less than 40 microns, length is less than 50 microns.
Using a kind of preparation method for carbon brush for electric machine that first aspect provides, graphite powder is ground up, sieved first, is obtained just
Purify graphite powder, will it is described just purification graphite powder be placed in graphite purifying furnace, under the conditions of preset temperature, be passed through inert gas and
CCl4, react preset time, obtain secondary purification graphite powder, binder dissolved with solvent, by the binder of dissolution with it is described
Secondary purification graphite powder is mixed evenly by predetermined ratio, and solvent is evaporated off, and obtains mixed-powder, by the mixed-powder powder
Broken machine crushes, and sub-sieve is crossed after grinding, obtains refinement mixed-powder, composite fibre material is added into the refinement mixed-powder
Material, extrusion forming, obtains the carbon brush for electric machine；The preparation method that the present invention provides a kind of carbon brush for electric machine can substantially reduce graphite
The ash content of coal in powder enhances refining effect, reduces carbon brush and damages caused by motor when in use.
According to the second aspect of the disclosure, a kind of carbon brush for electric machine preparation facilities is provided, described device is used to just mention described
Pure graphite powder secondary purification, described device include purification furnace and purification furnace feeder, and the purification furnace feeder is set to described
The top of purification furnace, the purification furnace include purification stove outer covering and air inlet pipeline, and one end of the air inlet pipeline is set to described
The inside of stove outer covering is purified, the other end of the air inlet pipeline is connected with atmosphere, is provided on the tube wall of the air inlet pipeline
Multiple branch's air inlet pipelines；
The purification furnace feeder includes feed hopper, feeding warehouse and feed pipe, one end of the feed pipe and the purification
The inside of stove outer covering is connected, and the other end of the feed pipe is connected with the inside of the feeding warehouse, and the feed hopper is set
It is placed in the top of the feeding warehouse and is connected with the inside of the feeding warehouse.
Optionally, one end far from the air inlet pipeline of branch's air inlet pipeline is provided with air storage bag, the storage
In spherical, the inside of the air storage bag is connected air bag with branch's air inlet pipeline, is provided on the outer wall of the air storage bag
Multiple ventholes.
Optionally, the purification stove outer covering is internally provided with multiple heaters, multiple heaters with it is multiple described
The setting of branch's air inlet pipeline interval.
A kind of carbon brush for electric machine preparation facilities shown in second aspect, described device are used for the just purification graphite powder is secondary
Purification, described device includes purification furnace and purification furnace feeder, and the purification furnace feeder is set to the top of the purification furnace,
The purification furnace includes purification stove outer covering and air inlet pipeline, and one end of the air inlet pipeline is set to the interior of the purification stove outer covering
The other end in portion, the air inlet pipeline is connected with atmosphere, and multiple branch's air inlet pipe are provided on the tube wall of the air inlet pipeline
Road, the purification furnace feeder include feed hopper, feeding warehouse and feed pipe, one end of the feed pipe and the purification furnace
The inside of shell is connected, and the other end of the feed pipe is connected with the inside of the feeding warehouse, the feed hopper setting
In the feeding warehouse top and be connected with the inside of the feeding warehouse；By being passed through inert gas, remove in graphite powder
Ash enhances the refining effect of graphite powder, reduces carbon brush and damages caused by motor when in use.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of flow diagram of the preparation method of carbon brush for electric machine provided in an embodiment of the present invention；
Fig. 2 is a kind of overall schematic of carbon brush for electric machine preparation facilities provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of air storage bag provided in an embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Embodiment one
It is a kind of preparation method of carbon brush for electric machine provided in an embodiment of the present invention, which is characterized in that the motor carbon referring to Fig. 1
The preparation method of brush the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, instead
Preset time is answered, secondary purification graphite powder is obtained；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Graphite powder, is ground up, sieved by a kind of isostatic pressing formed graphite preparation method that embodiment one provides first, obtains just purifying
Graphite powder, will it is described just purification graphite powder be placed in graphite purifying furnace, under the conditions of preset temperature, be passed through inert gas and
CCl4, react preset time, obtain secondary purification graphite powder, binder dissolved with solvent, by the binder of dissolution with it is described
Secondary purification graphite powder is mixed evenly by predetermined ratio, and solvent is evaporated off, and obtains mixed-powder, by the mixed-powder powder
Broken machine crushes, and sub-sieve is crossed after grinding, obtains refinement mixed-powder, composite fibre material is added into the refinement mixed-powder
Material, extrusion forming, obtains the carbon brush for electric machine；The preparation method that the present invention provides a kind of carbon brush for electric machine can substantially reduce graphite
The ash content of coal in powder enhances refining effect, reduces carbon brush and damages caused by motor when in use.Using hot conditions,
In inert gas, then it is passed through halogen gas, under inert gas conditions CCl4It is easy to discharge halogen, the halogen and graphite powder of release
In ash react after, remove graphite powder in ash.
Embodiment two
A kind of isostatic pressing formed graphite preparation method provided for the preferred embodiment of the invention, which is characterized in that the carbon brush for electric machine
Preparation method the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, at 1700 DEG C -2500 DEG C of temperature condition, is passed through inert gas
And CCl4, reaction at least 4 hours, obtain secondary purification graphite powder；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Wherein, temperature is increased to be conducive to halogen and react with the ash in graphite powder.
Embodiment three
For a kind of isostatic pressing formed graphite preparation method provided in an embodiment of the present invention, which is characterized in that the preparation of the carbon brush for electric machine
Method the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, it is described that the just purification graphite powder is placed in graphite purifying furnace
Afterwards, the graphite purifying furnace is warming up to 1800 DEG C, after reacting 2h, is continuously heating to 1900 DEG C, after reacting 2h, is continuously heating to
It is 2500 DEG C, cooling after reacting 4h, inert gas is removed after keeping 10-20h, obtains secondary purification graphite powder；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Wherein, the graphite purifying furnace is warming up to 1800 DEG C first, after reacting 2h, conducive to the release of halogen, after of continuing rising
Temperature is to 1900 DEG C, after reacting 2h, conducive to reacting for halogen and ash, is continuously heating to 2500 DEG C, can be further after reacting 4h
Guarantee halogen and ash fully reacting.
Example IV
For a kind of isostatic pressing formed graphite preparation method provided in an embodiment of the present invention, which is characterized in that the preparation of the carbon brush for electric machine
Method the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, instead
Preset time is answered, secondary purification graphite powder is obtained；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Wherein, the inert gas is nitrogen or argon gas.Through overtesting, nitrogen or argon gas are more conducive to the release of halogen.
Embodiment five
For a kind of isostatic pressing formed graphite preparation method provided in an embodiment of the present invention, which is characterized in that the preparation of the carbon brush for electric machine
Method the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, instead
Preset time is answered, secondary purification graphite powder is obtained；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Wherein, the binder is copna resin.Add copna resin carbon brush for electric machine have good flexural strength,
Shore Hardness and have excellent heat resistance.
Embodiment six
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, instead
Preset time is answered, secondary purification graphite powder is obtained；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
Wherein, the additive amount of the composite fibre material is the 0.2-10% of graphite powder weight, the composite fibre material
Diameter is less than 40 microns, and length is less than 50 microns.Additive amount is the 0.2-10% of graphite powder weight, and diameter is long less than 40 microns
Spending the fibrous material less than 50 microns can be good at improving brush forming stability and wearability.
Embodiment seven
The embodiment of the present invention and embodiment five the difference is that, the graphite block bearing plate 24 is set as multiple, increases stone
The quantity of ink stick bearing plate 24 can improve the service efficiency of the device space to greatest extent, economize on resources.
Embodiment eight
The embodiment of the present invention and embodiment five the difference is that, the sintering main body Container 1 coats having heaters 15, height
The sodium chloride of temperature can further heat under the action of heater 15, prevent heat loss, guarantee sintering temperature, and sintering is completed
Afterwards, after aspiration pump 222 stops working, sodium chloride solution flows back to sintering main body accommodating cavity 12 and the lower sintering main body accommodating cavity
13, external heater 15 can directly heat the sodium chloride solution that temperature reduces, without sodium chloride solution is taken
It is heated out with other heating equipment, improves production efficiency.
Second aspect of the present invention also provides one kind, carbon brush for electric machine preparation facilities, referring to Fig. 2, described device is used for institute
It states and just purifies graphite powder secondary purification, described device includes purification furnace 1 and purification furnace feeder 2, and the purification furnace feeder 2 is set
It is placed in the top of the purification furnace 1, the purification furnace 1 includes purification stove outer covering 11 and air inlet pipeline 12, the air inlet pipeline 12
One end be set to the inside of the purification stove outer covering 11, the other end of the air inlet pipeline 12 is connected with atmosphere, it is described into
Multiple branch's air inlet pipelines 121 are provided on the tube wall of air pipe 12；
The purification furnace feeder 2 include feed hopper 21, feeding warehouse 22 and feed pipe 23, one end of the feed pipe 23 with
The inside of the purification stove outer covering 11 is connected, and the other end of the feed pipe 23 is connected with the inside of the feeding warehouse 22,
The feed hopper 21 is set to the top of the feeding warehouse 22 and is connected with the inside of the feeding warehouse 22.It is lazy by being passed through
Property gas, remove the ash in graphite powder, enhance the refining effect of graphite powder, reduce carbon brush and damaged caused by motor when in use
Evil.
As preferred embodiment, one end far from the air inlet pipeline 12 of branch's air inlet pipeline 121 is respectively provided with
There is an air storage bag 122, in spherical, the inside of the air storage bag 122 is connected the air storage bag 122 with branch's air inlet pipeline 121
It is logical, multiple ventholes 123 are provided on the outer wall of the air storage bag 122.Air storage bag 122 and venthole 123 enable to halogen
It is spread to multiple directions, improves the reaction efficiency of ash in halogen and graphite.
As preferred embodiment, the purification stove outer covering 11 is internally provided with multiple heaters 13, it is multiple described plus
Hot device 13 is arranged with multiple intervals of branch's air inlet pipeline 121.Heater 13 is mentioned for uniformly heating to graphite powder
The reaction efficiency of ash in high halogen and graphite.
Those skilled in the art will readily occur to its of the application after considering specification and practicing application disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by above
Claim is pointed out.
It should be understood that the application is not limited to the accurate process for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.
Claims (9)
1. a kind of preparation method of carbon brush for electric machine, which is characterized in that the preparation method of the carbon brush for electric machine the following steps are included:
Graphite powder is ground up, sieved, obtains just purifying graphite powder；
The just purification graphite powder is placed in graphite purifying furnace, under the conditions of preset temperature, is passed through inert gas and CCl4, instead
Preset time is answered, secondary purification graphite powder is obtained；
Binder is dissolved with solvent, the binder of dissolution and the secondary purification graphite powder are mixed by predetermined ratio
It is even, solvent is evaporated off, obtains mixed-powder；
The mixed-powder is crushed with pulverizer, sub-sieve is crossed after grinding, obtains refinement mixed-powder；
Composite fibre material is added into the refinement mixed-powder, extrusion forming obtains the carbon brush for electric machine.
2. a kind of preparation method of carbon brush for electric machine according to claim 1, which is characterized in that the preset temperature is 1700
DEG C -2500 DEG C, the preset time is at least 4 hours.
3. a kind of preparation method of carbon brush for electric machine according to claim 1, which is characterized in that described just to purify stone for described
After ink powder is placed in graphite purifying furnace, the graphite purifying furnace is warming up to 1800 DEG C, after reacting 2h, is continuously heating to 1900
DEG C, after reacting 2h, 2500 DEG C are continuously heating to, it is cooling after reacting 4h, inert gas is removed after keeping 10-20h.
4. a kind of preparation method of carbon brush for electric machine according to claim 1, which is characterized in that the inert gas is nitrogen
Or argon gas.
5. a kind of preparation method of carbon brush for electric machine according to claim 1, which is characterized in that the binder is COPNA
Resin.
6. a kind of preparation method of carbon brush for electric machine according to claim 1, which is characterized in that the composite fibre material
Additive amount is the 0.2-10% of graphite powder weight, and the diameter of the composite fibre material is less than 40 microns, and length is less than 50 microns.
7. a kind of carbon brush for electric machine preparation facilities, which is characterized in that described device is used to just purify graphite powder secondary purification for described,
Described device includes purification furnace (1) and purification furnace feeder (2), and the purification furnace feeder (2) is set to the purification furnace (1)
Top, the purification furnace (1) include purification stove outer covering (11) and air inlet pipeline (12), one end of the air inlet pipeline (12) set
It is placed in the inside of purification stove outer covering (11), the other end of the air inlet pipeline (12) is connected with atmosphere, the air inlet pipe
Multiple branch's air inlet pipelines (121) are provided on the tube wall on road (12)；
The purification furnace feeder (2) includes feed hopper (21), feeding warehouse (22) and feed pipe (23), the feed pipe
(23) one end is connected with the inside of purification stove outer covering (11), the other end and the feeding warehouse of the feed pipe (23)
(22) inside is connected, the feed hopper (21) be set to the top of the feeding warehouse (22) and with the feeding warehouse (22)
Inside be connected.
8. a kind of carbon brush for electric machine preparation facilities according to claim 7, which is characterized in that branch's air inlet pipeline
(121) one end far from the air inlet pipeline (12) is provided with air storage bag (122), and the air storage bag (122) is in spherical, institute
The inside for stating air storage bag (122) is connected with branch's air inlet pipeline (121), is arranged on the outer wall of the air storage bag (122)
There are multiple ventholes (123).
9. a kind of carbon brush for electric machine preparation facilities according to claim 7 to 8 any one claim, which is characterized in that
Purification stove outer covering (11) is internally provided with multiple heaters (13), multiple heaters (13) and multiple branches
The setting of air inlet pipeline (121) interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183128.0A CN109326940A (en) | 2018-10-11 | 2018-10-11 | A kind of preparation method and preparation facilities of carbon brush for electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183128.0A CN109326940A (en) | 2018-10-11 | 2018-10-11 | A kind of preparation method and preparation facilities of carbon brush for electric machine |
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| CN109326940A true CN109326940A (en) | 2019-02-12 |
Family
ID=65261759
Family Applications (1)
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|---|---|---|---|
| CN201811183128.0A Pending CN109326940A (en) | 2018-10-11 | 2018-10-11 | A kind of preparation method and preparation facilities of carbon brush for electric machine |
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| CN (1) | CN109326940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435185A (en) * | 2019-08-20 | 2019-11-12 | 大同新成新材料股份有限公司 | A kind of fibre reinforced thermoplastic resin based composite material preparation method and preparation facilities |
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|---|---|---|---|---|
| CN1046818A (en) * | 1989-04-21 | 1990-11-07 | 马渊马达株式会社 | Carbon brush for miniature motors and manufacture method thereof |
| CN1049428A (en) * | 1989-08-11 | 1991-02-20 | 马渊马达株式会社 | The metal-filled graphite brush of miniature motor and manufacture method thereof |
| CN1054855A (en) * | 1990-03-07 | 1991-09-25 | 马渊马达株式会社 | The carbon brush of micromachine and manufacture method thereof |
| JPH03245752A (en) * | 1990-02-23 | 1991-11-01 | Hitachi Chem Co Ltd | Manufacture of carbon brush |
| US6679933B1 (en) * | 1998-12-16 | 2004-01-20 | Victorian Rail Track | Low resistivity materials with improved wear performance for electrical current transfer and methods for preparing same |
| CN103811971A (en) * | 2012-11-12 | 2014-05-21 | 钱俊勇 | Production process for high temperature resistant electric brush |
| CN204162426U (en) * | 2014-08-29 | 2015-02-18 | 洛阳市冠奇工贸有限责任公司 | A kind of feeding unit of graphite purifying furnace |
| CN106329286A (en) * | 2015-07-01 | 2017-01-11 | 苏州东南电碳科技有限公司 | Preparation method of motor train unit earth return brush |
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2018
- 2018-10-11 CN CN201811183128.0A patent/CN109326940A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046818A (en) * | 1989-04-21 | 1990-11-07 | 马渊马达株式会社 | Carbon brush for miniature motors and manufacture method thereof |
| CN1049428A (en) * | 1989-08-11 | 1991-02-20 | 马渊马达株式会社 | The metal-filled graphite brush of miniature motor and manufacture method thereof |
| JPH03245752A (en) * | 1990-02-23 | 1991-11-01 | Hitachi Chem Co Ltd | Manufacture of carbon brush |
| CN1054855A (en) * | 1990-03-07 | 1991-09-25 | 马渊马达株式会社 | The carbon brush of micromachine and manufacture method thereof |
| US6679933B1 (en) * | 1998-12-16 | 2004-01-20 | Victorian Rail Track | Low resistivity materials with improved wear performance for electrical current transfer and methods for preparing same |
| CN103811971A (en) * | 2012-11-12 | 2014-05-21 | 钱俊勇 | Production process for high temperature resistant electric brush |
| CN204162426U (en) * | 2014-08-29 | 2015-02-18 | 洛阳市冠奇工贸有限责任公司 | A kind of feeding unit of graphite purifying furnace |
| CN106329286A (en) * | 2015-07-01 | 2017-01-11 | 苏州东南电碳科技有限公司 | Preparation method of motor train unit earth return brush |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435185A (en) * | 2019-08-20 | 2019-11-12 | 大同新成新材料股份有限公司 | A kind of fibre reinforced thermoplastic resin based composite material preparation method and preparation facilities |
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Application publication date: 20190212 |