CN107966292A - It is a kind of can simulated environment brake-shoe pressure control detecting system and technique - Google Patents
It is a kind of can simulated environment brake-shoe pressure control detecting system and technique Download PDFInfo
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- CN107966292A CN107966292A CN201711488306.6A CN201711488306A CN107966292A CN 107966292 A CN107966292 A CN 107966292A CN 201711488306 A CN201711488306 A CN 201711488306A CN 107966292 A CN107966292 A CN 107966292A
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- pressure
- hydraulic
- cylinder
- brake
- brake block
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- 238000000034 method Methods 0.000 title claims description 7
- 239000003921 oil Substances 0.000 claims abstract description 27
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 238000012512 characterization method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 210000000080 chela (arthropods) Anatomy 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000010727 cylinder oil Substances 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses it is a kind of can simulated environment brake-shoe pressure control detecting system, including test box, fluid pressure line, pneumatic line and the clamp being arranged in test box, test box is provided with humidity control apparatus and temperature-adjusting device, and clamp are connected with for controlling the close hydraulic cylinder in two card divisions of clamp;Fluid pressure line includes the hydraulic pressure tank, the signal detecting component for detecting oil pressure and the first lock pressure valve body for locking hydraulic cylinder oil pressure of connection hydraulic cylinder, pneumatic line includes the cylinder being sequentially connected with hydraulic pressure tank, and the promotion of cylinder piston rod controls the hydraulic oil in hydraulic pressure tank to be flowed toward hydraulic cylinder.Reliable simulation obtains a variety of brake block working environments by combinations such as different humidity, temperature and oil pressure, efficiently uses in the performance of detection brake block.
Description
Technical field
The present invention relates to a kind of detection device, more particularly, to it is a kind of can simulated environment brake-shoe pressure control detecting system and
Technique.
Background technology
Brake block is also brake rubber block, and brake block is generally made of steel plate, bonding thermal insulation layer and brake pad.In the brake of automobile
In system, brake block is the breaking piece of most critical, and the quality of all braking effects is all that brake block plays a decisive role, so
The brake block for agreeing is people and the patron saint of automobile.
In order to test the various performances of brake block, such as moisture resistance performance, the heat resistance of brake block, the mould of brake block is set
Near-ring border.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide it is a kind of can simulated environment the inspection of brake-shoe pressure control
Examining system and technique, the performance of brake block is tested by simulated environment.
The present invention is to solve the technical solution that its technical problem uses to be:
It is a kind of can simulated environment brake-shoe pressure control detecting system, including test box, fluid pressure line, pneumatic line and set
The clamp in test box are put, the test box is provided with humidity control apparatus and temperature-adjusting device, and the clamp are connected with
For controlling the close hydraulic cylinder in two card divisions of clamp;
Fluid pressure line includes connecting the hydraulic pressure tank of hydraulic cylinder, the signal detecting component for detecting oil pressure and is used for
First lock pressure valve body of locking hydraulic cylinder oil pressure, the pneumatic line include the cylinder being sequentially connected with hydraulic pressure tank, and cylinder is lived
Hydraulic oil in the promotion control hydraulic pressure tank of stopper rod is flowed toward hydraulic cylinder.
Another embodiment according to the present invention, further has, and the humidity control apparatus is included toward test box
The wet gas generation device of conducting water or fog, for aspirating in test box the exhaust fan of air and wet in test box for detecting
The humidity sensor of degree.
Another embodiment according to the present invention, further has, the signal detecting component includes hydraulic sensing
Device and oil pressure display.
Another embodiment according to the present invention, further has, the fluid pressure line and pneumatic line are arranged on
Outside test box.
Another embodiment according to the present invention, further has, the hydraulic cylinder is connected with for locking hydraulic pressure
Second lock pressure valve body of cylinder oil pressure.
Another embodiment according to the present invention, further has, the cylinder is communicated with reversal valve, the commutation
Valve is provided with reversing handle;Stirring for reversing handle is back and forth flowed for hydraulic oil between hydraulic pressure tank and hydraulic cylinder.
Another embodiment according to the present invention, further has, and the reversal valve is communicated with for filtering source of the gas
The air-source treater of middle impurity and moisture content.
Another embodiment according to the present invention, further has, and the temperature-adjusting device includes being arranged on survey
Heat generating component, the refrigeration unit and temperature sensor of connecting test case in examination case.
Another embodiment according to the present invention, further has, the shape that brake block is corresponded on the clamp is set
It is equipped with the buckle for installing brake block.
It is a kind of can simulated environment brake-shoe pressure control characterization processes, comprise the following steps:
Step a, brake block installation, brake block are connected to a card division of clamp, and the card for installing brake block is used on clamp
The piston rod of portion's connection liquid cylinder pressure;
Step b, brake block are pressurized, and cylinder piston rod is promoted toward hydraulic pressure tank, and the hydraulic oil in hydraulic pressure tank is toward hydraulic cylinder
Water conservancy diversion, two card divisions of clamp are close and clamp brake block, while observe the oil pressure of signal detecting component feedback hydraulic cylinder, work as oil
The oil pressure of hydraulic cylinder is locked by the first lock pressure valve body when pressure reaches test technology value, cylinder piston rod stopping acts;
Step c, humidity regulation, fills into moisture toward test box by humidity control apparatus, observes the wet of humidity control apparatus
Value of feedback is spent, stops moisture when humidity reaches test technology value and fills into;
Step d, temperature adjustment, adjusts the temperature in test box, observation is thermostatic by temperature-adjusting device
Temperature feedback value, stops temperature adjustment when temperature reaches test technology value;
Step e, brake block stand, brake block are placed in simulated environment according to test technology duration and is stood;
Step f, test result test, brake block test deformation, the brake block of brake block after the completion of simulated environment standing
The changes in material of upper steel disc and friction plate.
The present invention use it is a kind of can simulated environment brake-shoe pressure control detecting system, have the advantages that:Reliably
Simulation obtains a variety of brake block working environments by combinations such as different humidity, temperature and oil pressure, efficiently uses and brakes in detection
The performance of piece.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is the connection diagram of cylinder and hydraulic piston of the present invention.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
As depicted in figs. 1 and 2, it is a kind of can simulated environment brake-shoe pressure control detecting system, including test box 1, hydraulic tube
Road, pneumatic line and the clamp 2 being arranged in test box 1, test box 1 are provided with humidity control apparatus and temperature adjustment dress
Put, clamp 2 are connected with for controlling the close hydraulic cylinder 3 in two card divisions of clamp 2;Fluid pressure line includes connection hydraulic cylinder 3
Hydraulic pressure tank 41, the signal detecting component for detecting oil pressure and the first lock pressure valve body for 3 oil pressure of locking hydraulic cylinder
42, pneumatic line includes the cylinder 51 being sequentially connected with hydraulic pressure tank 41, the promotion control hydraulic pressure tank 41 of 51 piston rod of cylinder
In hydraulic oil flowed toward hydraulic cylinder 3.
The buckle for installing brake block is provided with the card division of clamp 2, buckle coordinates brake block shape to set.
51 piston rod of cylinder, which is worn, connects hydraulic pressure tank 41, and 51 piston rod of cylinder wears the part for connecing hydraulic pressure tank 41 as hydraulic pressure appearance
The piston of case 41.51 piston rod of cylinder toward promoting in hydraulic pressure tank 41, the hydraulic oil in hydraulic pressure tank 41 toward 3 water conservancy diversion of hydraulic cylinder,
Oil pressure lifting in hydraulic cylinder 3 at the same time.When the hydraulic oil of hydraulic cylinder 3 reaches technological requirement value, the locking of the first lock pressure valve body 42
It is stored in for blocking hydraulic oil in hydraulic cylinder 3, hydraulic cylinder 3 persistently preserves the hydraulic oil of the oil pressure value.
Signal detecting component includes hydrostatic sensor 61 and oil pressure display.The connection of hydrostatic sensor 61 first lock pressure valve body
42, hydrostatic sensor 61 is used for the oil pressure for detecting hydraulic cylinder 3.Hydraulic pressure tank 41 is communicated with hydraulic oil container 9.
It is a kind of can simulated environment brake-shoe pressure control characterization processes, comprise the following steps:
Step a, brake block installation, brake block are connected to a card division of clamp 2, are used to install brake block on clamp 2
The piston rod of card division connection liquid cylinder pressure 3;
Step b, brake block are pressurized, and 51 piston rod of cylinder is promoted toward hydraulic pressure tank 41, and the hydraulic oil in hydraulic pressure tank 41 is past
3 water conservancy diversion of hydraulic cylinder, two card divisions of clamp 2 are close and clamp brake block, while observe signal detecting component feedback hydraulic cylinder 3
Oil pressure, is locked the oil pressure of hydraulic cylinder 3 by the first lock pressure valve body 42 when oil pressure reaches test technology value, 51 piston rod of cylinder
Stopping acts;
Step c, humidity regulation, fills into moisture toward test box 1 by humidity control apparatus, observes the wet of humidity control apparatus
Value of feedback is spent, stops moisture when humidity reaches test technology value and fills into;
Step d, temperature adjustment, adjusts the temperature in test box 1, observation is thermostatic by temperature-adjusting device
Temperature feedback value, stops temperature adjustment when temperature reaches test technology value;
Step e, brake block stand, brake block are placed in simulated environment according to test technology duration and is stood;
Step f, test result test, brake block test deformation, the brake block of brake block after the completion of simulated environment standing
The changes in material of upper steel disc and friction plate.
Humidity control apparatus includes turning on the wet gas generation device 8 of water or fog, for aspirating test box 1 toward test box 1
The exhaust fan of interior air and the humidity sensor for detecting humidity in test box 1.Wet gas generation device 8 include water tank and
The sprayer of joining water box, sprayer are provided with spray nozzle, and humidity sensor is connected with signal processing circuit, signal processing circuit
Humidity display screen is connected with, signal processing circuit is used to receive and handle humidity sensor detected value and for controlling humidity to show
Display screen indicates detected value.
In step c, the humidity in test box is improved by sprayer, the humidity in test box is reduced by exhaust fan.
Temperature-adjusting device includes heat generating component, the refrigeration unit and temperature of connecting test case 1 being arranged in test box 1
Spend sensor.Heat generating component includes the heater being arranged in test box 1 and the heating circuit being connected with heater;Test box
1 sets the partition plate with mesh, and test box 1 includes the top and lower part separated by partition plate, and heater and clamp 2 are set respectively
On lower part and top.Refrigeration unit includes compressor, moisture trap and the condenser being connected, compressor, moisture trap
And condenser is communicated with refrigerating medium at the same time, compression of the compressor to refrigerating medium drives the Wen Duxiajiang of test box 1.Temperature sensor
Be connected with signal processing circuit, signal processing circuit is connected with temperature display, signal processing circuit be used for receive and handle temperature
Degree sensor detected value simultaneously is used to control temperature display to indicate detected value.
In step d, the temperature in test box is improved by heater, the temperature in test box is reduced by refrigeration unit.
Fluid pressure line and pneumatic line are arranged on outside test box 1, can be locked in the outer oil pressure by hydraulic cylinder 3 of test box 1.
Hydraulic cylinder 3 is connected with the second lock pressure valve body 7 for 3 oil pressure of locking hydraulic cylinder, can be in test box 1 by the oil of hydraulic cylinder 3
Pressure locking.
Cylinder 51 is communicated with reversal valve 52, and reversal valve 52 is provided with reversing handle;Reversing handle is stirred for hydraulic oil
Back and forth flowed between hydraulic pressure tank 41 and hydraulic cylinder 3.Reversal valve 52 is communicated with for filtering the gas of impurity and moisture content in source of the gas
Source processor 53.The setting of air-source treater 53, stablizes cylinder operation, and cylinder extrudes strong during hydraulic oil.
The above embodiments are merely illustrative of the technical solutions of the present invention and is not limited, all without departing from the present invention
Any modification of spirit and scope or equivalent substitution, it should all cover in the range of technical solution of the present invention.
Claims (10)
1. it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:Including test box (1), fluid pressure line, gas
Dynamic pipeline and the clamp (2) being arranged in test box (1), the test box (1) are provided with humidity control apparatus and temperature tune
Regulating device, the clamp (2) are connected with for controlling the close hydraulic cylinder (3) in two card divisions of clamp (2);
Fluid pressure line includes hydraulic pressure tank (41), signal detecting component, the Yi Jiyong for detecting oil pressure of connection hydraulic cylinder (3)
In the first lock pressure valve body (42) of locking hydraulic cylinder (3) oil pressure, the pneumatic line includes being sequentially connected with hydraulic pressure tank (41)
Cylinder (51), the hydraulic oil in promotion control hydraulic pressure tank (41) of cylinder (51) piston rod flows toward hydraulic cylinder (3).
2. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:It is described wet
Degree regulating device includes turning on the wet gas generation device (8) of water or fog, for aspirating sky in test box (1) toward test box (1)
The exhaust fan of gas and the humidity sensor for detecting test box (1) interior humidity.
3. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:The liquid
Pressure detection components include hydrostatic sensor (61) and oil pressure display.
4. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:The liquid
Pressure pipe road and pneumatic line are arranged on test box (1) outside.
5. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:The liquid
Cylinder pressure (3) is connected with the second lock pressure valve body (7) for locking hydraulic cylinder (3) oil pressure.
6. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:The gas
Cylinder (51) is communicated with reversal valve (52), and the reversal valve (52) is provided with reversing handle;Reversing handle is stirred for hydraulic oil
Back and forth flowed between hydraulic pressure tank (41) and hydraulic cylinder (3).
7. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:It is described to change
It is communicated with to valve (52) for filtering the air-source treater of impurity and moisture content in source of the gas (53).
8. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:The temperature
Degree regulating device includes heat generating component, the refrigeration unit and temperature sensing of connecting test case (1) being arranged in test box (1)
Device.
9. it is according to claim 1 it is a kind of can simulated environment brake-shoe pressure control detecting system, it is characterised in that:The card
The shape that brake block is corresponded on pincers (2) is provided with buckle for installing brake block.
10. it is a kind of can simulated environment brake-shoe pressure control characterization processes, it is characterised in that comprise the following steps:
Step a, brake block installation, brake block are connected to a card division of clamp (2), are used to install brake block on clamp (2)
The piston rod of card division connection liquid cylinder pressure (3);
Step b, brake block are pressurized, and cylinder (51) piston rod is promoted toward hydraulic pressure tank (41), the hydraulic oil in hydraulic pressure tank (41)
Toward hydraulic cylinder (3) water conservancy diversion, two card divisions of clamp (2) are close and clamp brake block, while observe signal detecting component feedback liquid
The oil pressure of cylinder pressure (3), is locked the oil pressure of hydraulic cylinder (3) by the first lock pressure valve body (42) when oil pressure reaches test technology value
Tightly, cylinder (51) piston rod stopping acts;
Step c, humidity regulation, fills into moisture toward test box (1) by humidity control apparatus, observes the humidity of humidity control apparatus
Value of feedback, when humidity reaches test technology value, stopping moisture filling into;
Step d, temperature adjustment, adjusts the temperature in test box (1) by temperature-adjusting device, observes thermostatic temperature
Value of feedback is spent, stops temperature adjustment when temperature reaches test technology value;
Step e, brake block stand, brake block are placed in simulated environment according to test technology duration and is stood;
Step f, test result test, brake block test the deformation of brake block, steel on brake block after the completion of simulated environment standing
The changes in material of piece and friction plate.
Priority Applications (1)
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CN201711488306.6A CN107966292A (en) | 2017-12-29 | 2017-12-29 | It is a kind of can simulated environment brake-shoe pressure control detecting system and technique |
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CN201711488306.6A CN107966292A (en) | 2017-12-29 | 2017-12-29 | It is a kind of can simulated environment brake-shoe pressure control detecting system and technique |
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CN201711488306.6A Pending CN107966292A (en) | 2017-12-29 | 2017-12-29 | It is a kind of can simulated environment brake-shoe pressure control detecting system and technique |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112729820A (en) * | 2021-01-29 | 2021-04-30 | 广东维他科技有限公司 | Door and window hinge durability testing arrangement |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012236469A (en) * | 2011-05-11 | 2012-12-06 | Toyota Motor Corp | Operation state determining device of braking mechanism |
CN203551270U (en) * | 2013-11-06 | 2014-04-16 | 长春理工大学 | Brake pad fatigue testing machine |
CN103926072A (en) * | 2014-05-12 | 2014-07-16 | 南京汽车集团有限公司 | Endurance test device for drum brake under fluctuation pressure and test method thereof |
CN104502116A (en) * | 2014-09-18 | 2015-04-08 | 浙江万向精工有限公司 | Hydraulic simulation test apparatus and system, and test method |
CN204607487U (en) * | 2015-05-08 | 2015-09-02 | 濮阳市鼎豫石油钻采科技有限公司 | Pneumatic hydraulic disc brake system |
CN204666352U (en) * | 2015-05-29 | 2015-09-23 | 华北电力大学(保定) | A kind of brake shoe testing machine |
CN205080036U (en) * | 2015-04-21 | 2016-03-09 | 福州美德实验仪器有限公司 | Controllable road surface life test appearance of humiture |
JP2017020931A (en) * | 2015-07-13 | 2017-01-26 | 新日本特機株式会社 | Caliper hydraulic control unit and brake dynamometer |
CN206450579U (en) * | 2017-02-13 | 2017-08-29 | 埃梯梯精密机械制造(无锡)有限公司 | A kind of brake block test device |
CN207881933U (en) * | 2017-12-29 | 2018-09-18 | 珠海格莱利摩擦材料有限公司 | It is a kind of can simulated environment brake-shoe pressure control detecting system |
-
2017
- 2017-12-29 CN CN201711488306.6A patent/CN107966292A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012236469A (en) * | 2011-05-11 | 2012-12-06 | Toyota Motor Corp | Operation state determining device of braking mechanism |
CN203551270U (en) * | 2013-11-06 | 2014-04-16 | 长春理工大学 | Brake pad fatigue testing machine |
CN103926072A (en) * | 2014-05-12 | 2014-07-16 | 南京汽车集团有限公司 | Endurance test device for drum brake under fluctuation pressure and test method thereof |
CN104502116A (en) * | 2014-09-18 | 2015-04-08 | 浙江万向精工有限公司 | Hydraulic simulation test apparatus and system, and test method |
CN205080036U (en) * | 2015-04-21 | 2016-03-09 | 福州美德实验仪器有限公司 | Controllable road surface life test appearance of humiture |
CN204607487U (en) * | 2015-05-08 | 2015-09-02 | 濮阳市鼎豫石油钻采科技有限公司 | Pneumatic hydraulic disc brake system |
CN204666352U (en) * | 2015-05-29 | 2015-09-23 | 华北电力大学(保定) | A kind of brake shoe testing machine |
JP2017020931A (en) * | 2015-07-13 | 2017-01-26 | 新日本特機株式会社 | Caliper hydraulic control unit and brake dynamometer |
CN206450579U (en) * | 2017-02-13 | 2017-08-29 | 埃梯梯精密机械制造(无锡)有限公司 | A kind of brake block test device |
CN207881933U (en) * | 2017-12-29 | 2018-09-18 | 珠海格莱利摩擦材料有限公司 | It is a kind of can simulated environment brake-shoe pressure control detecting system |
Non-Patent Citations (1)
Title |
---|
曲波,王铁山,丛春梅: "轿车盘式制动片性能测试体系与设备" * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112729820A (en) * | 2021-01-29 | 2021-04-30 | 广东维他科技有限公司 | Door and window hinge durability testing arrangement |
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SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 519110 No.6, Longshan 3rd road, Longshan Industrial Zone, Doumen Town, Doumen District, Zhuhai City, Guangdong Province Applicant after: Zhuhai Greely friction material Co.,Ltd. Address before: 519110 No.6, Longshan 3rd road, Longshan Industrial Zone, Doumen Town, Doumen District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI GLORY FRICTION MATERIAL Co.,Ltd. |
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RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180427 |
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RJ01 | Rejection of invention patent application after publication |