CN108905848A - A kind of electrographite brush and preparation method thereof - Google Patents

A kind of electrographite brush and preparation method thereof Download PDF

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Publication number
CN108905848A
CN108905848A CN201810792331.1A CN201810792331A CN108905848A CN 108905848 A CN108905848 A CN 108905848A CN 201810792331 A CN201810792331 A CN 201810792331A CN 108905848 A CN108905848 A CN 108905848A
Authority
CN
China
Prior art keywords
chamber
face
fitted
transmitting
sliding seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810792331.1A
Other languages
Chinese (zh)
Inventor
韦健杭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Way Electronic Technology Co Ltd
Original Assignee
Guangzhou Way Electronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Way Electronic Technology Co Ltd filed Critical Guangzhou Way Electronic Technology Co Ltd
Priority to CN201810792331.1A priority Critical patent/CN108905848A/en
Publication of CN108905848A publication Critical patent/CN108905848A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B01F33/812—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more alternative mixing receptacles, e.g. mixing in one receptacle and dispensing from another receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
    • B01F27/1125—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • B01F27/806—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/321—Disposition of the drive
    • B01F35/3215—Disposition of the drive the driving system comprising more than one motor, e.g. having an auxiliary motor or comprising independently driven elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/324—Driving independent stirrer shafts, i.e. not fitted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/43—Supporting receptacles on frames or stands

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transmission Devices (AREA)

Abstract

The invention discloses a kind of electrographite brushes and preparation method thereof,Including chassis,Chassis top center is installed with support column,The bearing top end center is installed with support rod,The support rod periphery rotation is fitted with steering ring,Storage box is symmetrically installed at left and right sides of the steering ring,Limiting device is equipped between the steering ring bottom end and the bearing top end,The support rod top is installed with undercarriage,Arc groove is equipped in the undercarriage bottom end face,The steering ring top end surface is installed with the profile of tooth ring protruded into the arc groove,Roof connection is equipped with the first transmitting chamber on the left of the arc groove,Intracavitary be rotatably assorted of first transmitting is equipped with first gear,The first gear and the profile of tooth ring are intermeshed,It is upwardly extended on the right side of the first transmitting chamber equipped with the second transmitting chamber,It is rotatably assorted on the downside of the second transmitting chamber and the first steering shaft is installed.

Description

A kind of electrographite brush and preparation method thereof
Technical field
The present invention relates to machining graphite technical field, specially a kind of electrographite brush and preparation method thereof.
Background technique
Electrographite brush produces in preparation process, traditional for stone for graphite raw material firstly the need of being mixed The mixing equipment of ink carries out storage raw material usually using a storage box, needs to stop in stock discharge after stirring Work is stirred, wastes the working time, therefore, it is necessary to improve.
Summary of the invention
The purpose of the present invention is to provide a kind of electrographite brushes and preparation method thereof, in the prior art above-mentioned for overcoming Defect.
A kind of electrographite brush according to the present invention and preparation method thereof, including chassis, chassis top center are fixed There is support column, the bearing top end center is installed with support rod, and the support rod periphery rotation is fitted with steering ring, It symmetrically is installed with storage box at left and right sides of the steering ring, limit is equipped between the steering ring bottom end and the bearing top end Device, the support rod top are installed with undercarriage, and arc groove, the steering ring top are equipped in the undercarriage bottom end face End face is installed with the profile of tooth ring protruded into the arc groove, and roof connection is equipped with the first transmitting chamber on the left of the arc groove, described First intracavitary be rotatably assorted of transmitting is equipped with first gear, and the first gear and the profile of tooth ring are intermeshed, and described first It is upwardly extended on the right side of transmitting chamber and transmits chamber equipped with second, be rotatably assorted at the second transmitting chamber downside and the first steering is installed Axis, the first steering shaft left side extending end protrude into the intracavitary and end of first transmitting and are installed with and the first gear phase The second gear mutually engaged, second transmitting intracavitary described first, which steers outer shaft, is installed with first pulley, and described second It transmits inner wall top connection on the right side of chamber and is equipped with third transmitting chamber, rotate and match between the third transmitting chamber and the second transmitting chamber Conjunction is equipped with the second steering shaft, and periphery is installed with the second belt wheel on the left of second steering shaft, second belt wheel and described the Transmission is fitted with transmission belt between one belt wheel, extends to be equipped with up and down in the undercarriage right end face and slides chamber, the cunning Being slidably installed in an actor's rendering of an operatic tune has sliding seat, and the sliding seat is stretched out outside the sliding seat right end face, spiral shell in the sliding seat Line is fitted with spiral shell shape bar, at the top of the spiral shell shape bar extending end with it is described slide intracavitary roof and be rotatably assorted connect, it is described Spiral shell shape bar bottom extending end power is fitted with the first motor, and first motor, which is fixedly arranged on, described slides intracavitary bottom In wall, the second motor is installed in the sliding seat top end surface, second motor top power is fitted with flower Key axis, the partial turn slided between chamber and third transmitting chamber are fitted with third steering shaft, and the third turns The spline chamber to connect with the splined shaft spline fitted is equipped with into axis bottom end face, third steering shaft top is fixed There is the first taper cone pulley, the first taper cone pulley intermeshing is equipped with the second taper cone pulley, and second taper cone pulley is fixedly arranged on described the Two steering shaft outer surfaces.
Further technical solution is installed with third motor, the third motor in the sliding seat bottom end face Bottom end power is fitted with puddling axis, and puddling axis periphery is installed with multiple groups puddling page, described on the upside of the puddling page The rotation of puddling axis periphery is fitted with fixed plate, is symmetrically installed with joining beam at left and right sides of the fixed plate, the joining beam is fixed In the sliding seat bottom end face.
Further technical solution, the limiting device include the arc groove being set in the support column top end surface, The steering ring bottom end face bilateral symmetry is installed with the position limit arm protruded into the arc groove, and the arc groove bottom wall is installed with Limit plate is installed with magnetic sheet on the limit plate.
Further technical solution, the storage box top end surface is interior to be equipped with the storage chamber protruded into the puddling page, The storage chamber bottom wall is equipped with the discharge outlet through the storage box bottom end face, is equipped with control valve in the discharge outlet.
The beneficial effects of the invention are as follows：Since in the initial state, sliding seat is in and slides chamber roof, at this point, splined shaft It is intracavitary to be fully inserted into spline, outside the fully extended storage chamber of puddling axis, at this point, can storage box reversing of position to the left and right sides, behaviour Make simple and convenient, nor affects on the addition to graphite raw material.
When needing mixing to work, graphite raw material is poured into the storage chamber of the left and right sides respectively, starts the first motor It drives sliding seat to be snapped down to and slides bottom of chamber wall, contacted at this point, puddling axis is fully inserted into storage chamber with graphite raw material, start third Motor drives puddling page to graphite raw material high-efficiency stirring, and after stirring, the first motor of reverse starting is driven in sliding seat It slides to and slides chamber roof, return to original state, the second motor of starting drives steering ring to rotate 180 °, that is, makes the left and right sides Storage box reversing of position, so that the graphite raw material that stirring finishes can be discharged by opening control valve, meanwhile, start the first motor It drives puddling axis to protrude into again and is stirred work in storage chamber, so as to carry out discharge simultaneously with stirring work, mention significantly The production and processing efficiency for having risen graphite raw material, is worth of widely use.
Detailed description of the invention
Fig. 1 is a kind of internal overall structure diagram of electrographite brush of the invention and preparation method thereof；
Fig. 2 is enlarged structure schematic diagram at A in Fig. 1；
Fig. 3 is enlarged structure schematic diagram at B in Fig. 1；
Fig. 4 is arrow direction structural schematic diagram in Fig. 1.
Specific embodiment
Below with reference to Fig. 1-4, the present invention is described in detail.
Referring to Fig.1-4, a kind of electrographite brush and preparation method thereof of embodiment according to the present invention, including chassis 100, institute It states 100 top center of chassis and is installed with support column 101, the 101 top center of support column is installed with support rod 122, institute It states the rotation of 122 periphery of support rod and is fitted with steering ring 121,121 left and right sides of steering ring is symmetrically installed with storage box 107, limiting device is equipped between 101 top of 121 bottom end of steering ring and the support column, 122 top of support rod is solid Equipped with undercarriage 115, arc groove 152 is equipped in 115 bottom end face of undercarriage, 121 top end surface of steering ring is fixed There is the profile of tooth ring 151 protruded into the arc groove 152,152 left side roof of the arc groove connection is equipped with the first transmitting chamber 154, It is rotatably assorted in the first transmitting chamber 154 and first gear 157 is installed, the first gear 157 and 151 phase of profile of tooth ring It mutually engages, is upwardly extended on the right side of the first transmitting chamber 154 equipped with the second transmitting chamber 131, described second transmits on the downside of chamber 131 It is rotatably assorted and the first steering shaft 155 is installed, the 155 left side extending end of the first steering shaft protrudes into the first transmitting chamber In 154 and end is installed with transmits in chamber 131 with the intermeshing second gear 156 of the first gear 157, described second First steering shaft, 155 periphery is installed with first pulley 153, and second transmitting, 131 right side inner wall top of chamber connection is equipped with Third transmits chamber 137, is rotatably assorted between the third transmitting chamber 137 and the second transmitting chamber 131 and is equipped with the second steering Axis 135, the 135 left side periphery of the second steering shaft are installed with the second belt wheel 138, second belt wheel 138 and the first band Transmission is fitted with transmission belt 142 between wheel 153, extends to be equipped with up and down in 115 right end face of undercarriage and slides chamber 116, it is described slide to be slidably installed in chamber 116 have sliding seat 113, the sliding seat 113 stretches out 155 right side of the sliding seat Outside end face, 113 screw-internal thread fit of sliding seat is equipped with spiral shell shape bar 117, the 117 top extending end of spiral shell shape bar with it is described It slides 116 inner roof wall of chamber to be rotatably assorted connection, the 117 bottom extending end power of spiral shell shape bar is fitted with the first motor 118, first motor 118 be fixedly arranged on it is described slide in 116 inner bottom wall of chamber, it is fixed in 113 top end surface of sliding seat Have the second motor 132, the 132 top power of the second motor is fitted with splined shaft 141, it is described slide chamber 116 with Partial turn between the third transmitting chamber 137 is fitted with third steering shaft 134,134 bottom of third steering shaft The spline chamber 133 to connect with 141 spline fitted of splined shaft is equipped in end face, 134 top of third steering shaft is solid Equipped with the first taper cone pulley 139, the intermeshing of the first taper cone pulley 139 is equipped with the second taper cone pulley 136, second taper cone pulley 136 are fixedly arranged on 135 outer surface of the second steering shaft.
Valuably or illustratively, third motor 114, the third are installed in 113 bottom end face of sliding seat 114 bottom end power of motor is fitted with puddling axis 109, and 109 periphery of puddling axis is installed with multiple groups puddling page 108, institute 109 periphery of the puddling axis rotation for stating 108 upside of puddling page is fitted with fixed plate 111, the fixed plate 111 or so two Side is symmetrically installed with joining beam 112, and the joining beam 112 is fixedly arranged on 113 bottom end face of sliding seat, to mix to graphite raw material Stir work.
Valuably or illustratively, the limiting device includes the arc being set in 101 top end surface of support column Slot 124,121 bottom end face of the steering ring bilateral symmetry is installed with the position limit arm 123 protruded into the arc groove 124, described 124 bottom wall of arc groove is installed with limit plate 102, is installed with magnetic sheet 103 on the limit plate 102, to limit the storage box 107 are constantly in left and right sides position.
Valuably or illustratively, it is equipped in 107 top end surface of storage box and is deposited to what the puddling page 108 protruded into Chamber 106 is put, 106 bottom wall of storage chamber is equipped with the discharge outlet 105 through 107 bottom end face of storage box, the discharge outlet Control valve 104 is installed, consequently facilitating storage graphite raw material and automatic discharge work in 105.
When original state, sliding seat 113 is in and slides 116 roof of chamber, at this point, splined shaft 141 is fully inserted into spline chamber 133 It is interior, outside the fully extended storage chamber 106 of puddling axis 109.
When needing mixing to work, graphite raw material is poured into respectively in the storage chamber 106 of the left and right sides, starting first is electronic Machine 118 drives sliding seat 113 to be snapped down to and slides 116 bottom wall of chamber, at this point, puddling axis 109 is fully inserted into storage chamber 106 and graphite Raw material contact, starting third motor 114 drive 108 pairs of graphite raw material high-efficiency stirrings of puddling page, after stirring, reverse starting First motor 118, which drives to slide in sliding seat 113, slides 116 roof of chamber, returns to original state, starts the second motor 132 Steering ring 121 is driven to rotate 180 °, that is, to make 107 reversing of position of storage box of the left and right sides, thus the graphite raw material that stirring finishes It can be discharged by opening control valve 104, meanwhile, the first motor 118 of starting drives puddling axis 109 to protrude into storage chamber 106 again Inside it is stirred work.
The beneficial effects of the invention are as follows：Since in the initial state, sliding seat is in and slides chamber roof, at this point, splined shaft It is intracavitary to be fully inserted into spline, outside the fully extended storage chamber of puddling axis, at this point, can storage box reversing of position to the left and right sides, behaviour Make simple and convenient, nor affects on the addition to graphite raw material.
When needing mixing to work, graphite raw material is poured into the storage chamber of the left and right sides respectively, starts the first motor It drives sliding seat to be snapped down to and slides bottom of chamber wall, contacted at this point, puddling axis is fully inserted into storage chamber with graphite raw material, start third Motor drives puddling page to graphite raw material high-efficiency stirring, and after stirring, the first motor of reverse starting is driven in sliding seat It slides to and slides chamber roof, return to original state, the second motor of starting drives steering ring to rotate 180 °, that is, makes the left and right sides Storage box reversing of position, so that the graphite raw material that stirring finishes can be discharged by opening control valve, meanwhile, start the first motor It drives puddling axis to protrude into again and is stirred work in storage chamber, so as to carry out discharge simultaneously with stirring work, mention significantly The production and processing efficiency for having risen graphite raw material, is worth of widely use.
Those skilled in the art can define, can in the case of not departing from overall spirit of the invention and design To make the various modifications for above embodiments.It falls within the scope of protection of the present invention.Protection scheme of the invention It is subject to claims appended hereto.

Claims (4)

1. a kind of electrographite brush and preparation method thereof, including chassis, it is characterised in that：Chassis top center is installed with branch Bearing column, the bearing top end center are installed with support rod, and the support rod periphery rotation is fitted with steering ring, described It symmetrically is installed with storage box at left and right sides of steering ring, limit dress is equipped between the steering ring bottom end and the bearing top end It sets, the support rod top is installed with undercarriage, is equipped with arc groove, the steering ring top end in the undercarriage bottom end face Face is installed with the profile of tooth ring protruded into the arc groove, and roof connection is equipped with the first transmitting chamber on the left of the arc groove, and described the One intracavitary is rotatably assorted of transmitting is equipped with first gear, and the first gear and the profile of tooth ring are intermeshed, and described first passes It passs to upwardly extend on the right side of chamber and transmits chamber equipped with second, be rotatably assorted at the second transmitting chamber downside and the first steering shaft is installed, On the left of first steering shaft extending end protrude into the intracavitary and end of first transmitting be installed with it is mutual with the first gear The second gear of engagement, second transmitting intracavitary described first, which steers outer shaft, is installed with first pulley, and described second passes It passs inner wall top connection on the right side of chamber and is equipped with third transmitting chamber, is rotatably assorted between the third transmitting chamber and the second transmitting chamber Second steering shaft is installed, periphery is installed with the second belt wheel, second belt wheel and described first on the left of second steering shaft Transmission is fitted with transmission belt between belt wheel, extends to be equipped with up and down in the undercarriage right end face and slides chamber, described to slide Intracavitary be slidably installed has sliding seat, and the sliding seat is stretched out outside the sliding seat right end face, the sliding seat internal screw thread Be fitted with spiral shell shape bar, at the top of the spiral shell shape bar extending end with it is described slide intracavitary roof and be rotatably assorted connect, the spiral shell Shape bar bottom extending end power is fitted with the first motor, and first motor, which is fixedly arranged on, described slides intracavitary bottom wall It is interior, the second motor is installed in the sliding seat top end surface, second motor top power is fitted with spline Axis, the partial turn slided between chamber and third transmitting chamber are fitted with third steering shaft, and the third turns to The spline chamber to connect with the splined shaft spline fitted is equipped in axis bottom end face, third steering shaft top is installed with First taper cone pulley, the first taper cone pulley intermeshing are equipped with the second taper cone pulley, and second taper cone pulley is fixedly arranged on described second Steering shaft outer surface.
2. a kind of electrographite brush according to claim 1 and preparation method thereof, it is characterised in that：The sliding seat bottom end Third motor is installed in face, third motor bottom end power is fitted with puddling axis, and puddling axis periphery is solid Equipped with multiple groups puddling page, the puddling axis periphery rotation on the upside of the puddling page is fitted with fixed plate, the fixed plate The left and right sides is symmetrically installed with joining beam, and the joining beam is fixedly arranged on the sliding seat bottom end face.
3. a kind of electrographite brush according to claim 1 and preparation method thereof, it is characterised in that：The limiting device includes The arc groove being set in the support column top end surface, the steering ring bottom end face bilateral symmetry, which is installed with, protrudes into the arc Position limit arm in shape slot, the arc groove bottom wall are installed with limit plate, are installed with magnetic sheet on the limit plate.
4. a kind of electrographite brush according to claim 1 and preparation method thereof, it is characterised in that：The storage box top end The storage chamber protruded into the puddling page is equipped in face, the storage chamber bottom wall is equipped with through the storage box bottom end face Discharge outlet is equipped with control valve in the discharge outlet.
CN201810792331.1A 2018-07-18 2018-07-18 A kind of electrographite brush and preparation method thereof Withdrawn CN108905848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810792331.1A CN108905848A (en) 2018-07-18 2018-07-18 A kind of electrographite brush and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810792331.1A CN108905848A (en) 2018-07-18 2018-07-18 A kind of electrographite brush and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108905848A true CN108905848A (en) 2018-11-30

Family

ID=64415891

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810792331.1A Withdrawn CN108905848A (en) 2018-07-18 2018-07-18 A kind of electrographite brush and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108905848A (en)

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Application publication date: 20181130

WW01 Invention patent application withdrawn after publication