CN202916344U - A high-temperature molten glass resistivity testing system - Google Patents
A high-temperature molten glass resistivity testing system Download PDFInfo
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- CN202916344U CN202916344U CN 201220645781 CN201220645781U CN202916344U CN 202916344 U CN202916344 U CN 202916344U CN 201220645781 CN201220645781 CN 201220645781 CN 201220645781 U CN201220645781 U CN 201220645781U CN 202916344 U CN202916344 U CN 202916344U
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- glass melt
- crucible
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- 238000012360 testing method Methods 0.000 title abstract description 11
- 239000006060 molten glass Substances 0.000 title abstract 7
- 239000011521 glass Substances 0.000 claims abstract description 17
- 239000000156 glass melt Substances 0.000 claims description 35
- 238000009413 insulation Methods 0.000 claims description 32
- 238000005259 measurement Methods 0.000 claims description 22
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000009529 body temperature measurement Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 9
- 238000002844 melting Methods 0.000 abstract description 8
- 230000008018 melting Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
A high-temperature molten glass resistivity testing system is provided and fills in a blank in the technical field of molten glass resistivity test. An employed technical scheme is that the structure of the above system comprises an operating platform, a crucible which is placed on the operating platform and which is used for containing molten glass to be tested, and the temperature-controlling furnace equipped with an electric heating element, and a control unit containing a management circuit. The operating platform is arranged in the temperature-controlling furnace. The key of the testing system is that the structure of the above system also comprises an electric signal acquiring module used for acquiring electric signals of the molten glass in the crucible in virtue of electrodes, and that the signal output end of the electric signal acquiring module is connected with the control unit. The beneficial effects of the high-temperature molten glass resistivity testing system are that the testing system provides reliable basis for a corresponding relation between the molten glass resistivity and temperature in electric boosting technology while providing important references for the design of an electric boosting system, and guarantees accuracy of key index in the design of melting tanks and power transmission and distribution while being a necessary guarantee of increasing glass melting quality.
Description
Technical field
The utility model relates to a kind of high temp glass melt resistivity measurement system, belongs to the testing of materials apparatus field.
Background technology
Along with developing rapidly of glass smelting technology, electric boosting is widely adopted in glass melter, has obtained everybody approval with its unique advantage: 1, increase substantially melting rate; 2, improve refining quality; 3, weaken combustion intensity, the prolongation furnace service life of top flame space; 4, reduce the product loss that causes because of the calculus defective; 5, improve the thermal efficiency, environmental contamination reduction.Particularly in the melting furnaces of TFT-LCD with glass substrate, be widely used.
Analyze from the meaning of high temp glass melt resistivity measurement, under the different temperatures, the resistance parameter of analyzing glass melt changes can provide for the adjustment of the side of expecting good reference role; In the electric boosting kiln, the change in resistance of high temp glass melt is whether direct relation melten glass liquid can effectively promote glass melting, reduces calculus, promotes homogenizing and clarification, reduces the key index of glass defect; In the early stage of kiln design, understand the high-temperature resistivity variation and also provide important reference for the design of electric boosting system, being the key index that is directly connected to melting tank and power transmission and distribution design, is the necessary guarantee of improving electric boosting, improving the glass smelting quality so fully realize the change in resistance of high temp glass melt.
But in the prior art, therefore the resistivity measurement of high temp glass melt or blank out are quite necessary in the relevant patent of application aspect the high temp glass melt resistivity measurement, will play positive impetus for research and the production of glass material.
Summary of the invention
The utility model is the blank that remedies glass melt resistivity measurement technical field, designed a kind of high temp glass melt resistivity measurement system, having realized by the glass melt resistivity measurement system in the utility model that electric boosting is reasonable complies with, for the design of electric boosting system provides important references, having guaranteed the accuracy of melting tank and power transmission and distribution design key index, is the necessary guarantee that improves the glass smelting quality.
The utility model for realizing the technical scheme that goal of the invention adopts is, a kind of high temp glass melt resistivity measurement system, comprise worktable in the structure of above system, be arranged on the worktable and hold glass melt to be measured crucible, be provided with the temperature control furnace of electrical heating elements and with the control module of management circuit, table positions is in temperature control furnace, key is: also comprise in the structure of said system: gather the electrical signal collection module of the glass melt electric signal in the crucible by electrode pair, the signal output part of above electrical signal collection module is connected with control module.
The beneficial effects of the utility model are: the utility model provides reliable basis for the corresponding relation of glass metal resistivity and temperature in the electric boosting, for the design of electric boosting system provides important references, having guaranteed the accuracy of melting tank and power transmission and distribution design key index, is the necessary guarantee that improves the glass smelting quality.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In the accompanying drawing, 1 represents worktable, and 2 represent crucible, 3 represent electrode pair, and 4A represents infrared sensor, and 4B represents thermocouple temperature sensor, 5-1 represents loam cake, and 5-2 represents burner hearth, and 5-3 represents heating electrode, 5-4 represents transparent heat-insulated window, and 5A represents heat-insulation layer, and 5B represents thermofin, 5C represents the electric signal screen layer, 5D represents the body of heater shell, and 6 represent vertical lifting mechanism, and 7 represent drive motor.
Embodiment
A kind of high temp glass melt resistivity measurement system, comprise worktable 1 in the structure of above system, be arranged on the worktable 1 and hold glass melt to be measured crucible 2, be provided with the temperature control furnace of electrical heating elements and with the control module of management circuit, worktable 1 is positioned in the temperature control furnace, key is: also comprise in the structure of described system: gather the electrical signal collection module of the glass melt electric signal in the crucible 2 by electrode pair 3, the signal output part of above electrical signal collection module is connected with control module.
Also comprise in the structure of said system: the temperature measurement module that gathers glass temperatures information, the signal output part of temperature measurement module is connected with control module, comprises in the above temperature measurement module: the thermocouple temperature sensor 4B that is positioned at the infrared sensor 4A of crucible 2 tops and is arranged on crucible 2 bottoms.
Comprise in the structure of above-mentioned temperature control furnace: vertical thermal insulation furnace body, the loam cake 5-1 that is arranged on vertical thermal insulation furnace body upper port and open lower port, be distributed on the heating electrode 5-3 in the burner hearth 5-2 that vertical thermal insulation furnace body surrounds, the power end of heating electrode 5-3 is connected with control module, and crucible 2 is arranged between the heating electrode 5-3.
The structural sheet of above-mentioned vertical thermal insulation furnace body comprises from the inside to the outside successively: heat-insulation layer 5A, thermofin 5B, electric signal screen layer 5C and body of heater shell 5D.
Above-mentioned worktable 1 is arranged on the lower port of vertical thermal insulation furnace body, and the bottom of worktable 1 is provided with vertical lifting mechanism 6 and supporting drive motor 7, and worktable 1 forms by vertical lifting mechanism 6 with vertical thermal insulation furnace body and is slidingly matched.
The structural sheet of above-mentioned worktable 1 from top to bottom comprises successively: the center is cotton with high aluminium backing, high-alumina refractory bearing, the heat-insulation and heat-preservation of projection, heat insulation tie-plate, run through the pilot hole of worktable 1 projection setting, thermocouple temperature sensor 4B is arranged on the below of pilot hole.
Electrode in the above-mentioned electrode pair 3 is the platinum electrode sheet, and the pilot hole that passes on the worktable 1 by the platinum wire is connected with the electrical signal collection module, and the size of above platinum electrode sheet and the cross sectional dimensions of crucible are supporting.
The loam cake 5-1 center of above-mentioned vertical thermal insulation furnace body is provided with transparent heat-insulated window 5-4, the infrared sensor 4A in the temperature measurement module be positioned at transparent heat-insulated window 5-4 directly over.
Test philosophy of the present utility model is:
According to Ohm law and resistivity formula:
, can be derived as:
Wherein U is the voltage drop at tested glass melt two ends; I is the electric current by tested glass melt; S is the cross-sectional area of tested glass melt; L is that tested glass melt is along the length of direction of current.These 4 physical quantitys can adopt the utility model to measure accurately, thereby draw the resistivity of tested glass melt.
One of key of the present utility model: worktable 1 is hoistable platform, tested glass holder is loaded onto the centre of temperature control furnace by jacking gear, and the bottom of whole body of heater is sealed, and has prevented gaseous exchange, has reduced the heat loss in the test process.Concrete structure and enforcement function are: adopt drive motor 7 to drive the purpose that the gear trains such as middle screw rod, metal support play lifting, the cotton Main Function of heat insulation tie-plate and heat-insulation and heat-preservation scatters and disappears from the bottom for preventing heat, heat insulation tie-plate is shaped as has the cylindric of higher projection, and pilot hole is set, be used for running through of test electrode system and thermocouple temperature measurement system, play fixing effect.The heat-insulation and heat-preservation cotton be shaped as disc-shaped, middle according to the physical size perforate.High-alumina refractory bearing and high aluminium backing Main Function be for to be promoted to body of heater central authorities with testing sample, and prevent scattering and disappearing of body of heater heat, and the high aluminium backing protection temperature measuring equipment on top is avoided damaging, and shape is designed to discoideus or circular tray shape.
Two of key of the present utility model: temperature measurement module is the bimodulus temperature measurement module, can realize the accurate control of sample temperature by the bimodulus temp measuring system.The high accuracy temperature control stove of this device plays the heating sample by photothermal mode, in top layer and the bottom of sample certain thermograde can appear for this reason, the thermocouple temperature measurement point is arranged on the bottom of sample, the infrared measurement of temperature point is arranged on the upper surface of sample, comes the thermograde situation of accurate Characterization sample by contrast PV value each other.The project organization of this part specifically is expressed as: adopt two colorimetric infrared measurement of temperature and thermopair combined system, its range is respectively room temperature to 1800 ℃ and room temperature to 1650 ℃.The temperature-measurement principle collection light signal of employing infrared thermometer is converted into temperature signal and is connected with the high accuracy temperature control stove, adopt the mode of thermopair in fire-resistant bearing, to open the hole, collecting temperature signal below heat insulating mattress, pass to the control module of stove, and compare with the infrared measurement of temperature signal, reach the purpose of accurate temperature controlling.
The high accuracy temperature control stove is main body heating part of the present utility model, its function is accurately to control the temperature variation of flat-temperature zone according to the setting of program, Adopts measure is for to be input to signal in the temperature control instrument by the bimodulus temp measuring system, by calculating the power of motivation of adjustment input, thereby control the power stage of heating element, reach the purpose of the tested glass temperatures of accurate control.Refractory burner hearth plays the effect of insulation and support, guarantees the even of furnace body temperature, supports heating rod, and provides support for the installation winding of peripheral insulation material.Heat-insulation layer adopts cotton the invalid lost of assurance furnace body temperature that be used for of heat-insulation and heat-preservation, and thickness is 5cm～10cm, reaches the purpose of insulation by the mode of twining multilayer.The thickness of thermofin is 1cm～3cm, plays the effect of insulation.The loam cake employing high-alumina refractory plate of upper of furnace body is the Insulation in order to prevent that heat scatters and disappears and does from top, the middle transparent heat-insulated window that arranges adopts transparency silica glass as the optical transmission window material, the light signal of representation temperature can be passed to infrared survey sensor.
The test electrode system comprises platinum electrode and platinum wire, platinum electrode be shaped as sheet, size is corresponding with the cross sectional dimensions of crucible, and can well be stuck in the crucible groove, for reducing the generation of error, the necessary surfacing of pellet electrode, structured size, the place is necessary for level and smooth solder joint with the platinum wire bonds, virtual connection or loosening phenomenon can not occur.
The utility model by calculating, takes by weighing quantitative glass and packs in the specific ceramic crucible when concrete the use, installs electrode pair 3 in crucible 2 both sides, and is fixed on the top of worktable; By elevating mechanism that the crucible carrying is central to body of heater.Arranging of temperature curve, each thermometric temperature spot insulation 15 ~ 30min, the voltage drop and the electric current that pass by the electrical signal collection system simultaneously, and carry out detail record.Point for measuring temperature is set to: every 50 ℃ of record periods, the inherent different time in each cycle gathers 3 to 10 points as data source from 1000 ℃ to 1650 ℃.The cross-sectional area of glass melt and length can obtain by the means of measuring in advance, thereby can be calculated the resistivity value of different temperature points glass melt.
Claims (9)
1. high temp glass melt resistivity measurement system, comprise worktable (1) in the structure of above system, be arranged on worktable (1) upper and hold glass melt to be measured crucible (2), be provided with the temperature control furnace of electrical heating elements and with the control module of management circuit, worktable (1) is positioned in the temperature control furnace, it is characterized in that: also comprise in the structure of described system: gather the electrical signal collection module of the glass melt electric signal in the crucible (2) by electrode pair (3), the signal output part of above electrical signal collection module is connected with control module.
2. a kind of high temp glass melt resistivity measurement according to claim 1 system, it is characterized in that: also comprise in the structure of described system: the temperature measurement module that gathers glass temperatures information, the signal output part of temperature measurement module is connected with control module, comprises in the above temperature measurement module: be positioned at the infrared sensor (4A) of crucible (2) top and the thermocouple temperature sensor (4B) that is arranged on crucible (2) bottom.
3. a kind of high temp glass melt resistivity measurement according to claim 2 system, it is characterized in that: comprise in the structure of described temperature control furnace: vertical thermal insulation furnace body, the loam cake (5-1) that is arranged on vertical thermal insulation furnace body upper port and open lower port, be distributed on the heating electrode (5-3) in the burner hearth (5-2) that vertical thermal insulation furnace body surrounds, the power end of heating electrode (5-3) is connected with control module, and crucible (2) is arranged between the heating electrode (5-3).
4. a kind of high temp glass melt resistivity measurement according to claim 3 system, it is characterized in that: the structural sheet of described vertical thermal insulation furnace body comprises from the inside to the outside successively: heat-insulation layer (5A), thermofin (5B), electric signal screen layer (5C) and body of heater shell (5D).
5. a kind of high temp glass melt resistivity measurement according to claim 3 system, it is characterized in that: described worktable (1) is arranged on the lower port of vertical thermal insulation furnace body, and the bottom of worktable (1) is provided with vertical lifting mechanism (6) and supporting drive motor (7), and worktable (1) forms by vertical lifting mechanism (6) with vertical thermal insulation furnace body and is slidingly matched.
6. a kind of high temp glass melt resistivity measurement according to claim 2 system, it is characterized in that: the structural sheet of described worktable (1) from top to bottom comprises successively: the center is cotton with high aluminium backing, high-alumina refractory bearing, the heat-insulation and heat-preservation of projection, heat insulation tie-plate, run through the pilot hole of worktable (1) projection setting, thermocouple temperature sensor (4B) is arranged on the below of pilot hole.
7. a kind of high temp glass melt resistivity measurement according to claim 6 system, it is characterized in that: the electrode in the described electrode pair (3) is the platinum electrode sheet, the pilot hole that passes on the worktable (1) by the platinum wire is connected with the electrical signal collection module, and the size of above platinum electrode sheet and the cross sectional dimensions of crucible are supporting.
8. a kind of high temp glass melt resistivity measurement according to claim 3 system, it is characterized in that: the loam cake of described vertical thermal insulation furnace body (5-1) center is provided with transparent heat-insulated window (5-4), the infrared sensor in the temperature measurement module (4A) be positioned at transparent heat-insulated window (5-4) directly over.
9. a kind of high temp glass melt resistivity measurement according to claim 1 system, it is characterized in that: described electrode pair (3) symmetry is positioned at the both sides of crucible (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645781 CN202916344U (en) | 2012-11-30 | 2012-11-30 | A high-temperature molten glass resistivity testing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645781 CN202916344U (en) | 2012-11-30 | 2012-11-30 | A high-temperature molten glass resistivity testing system |
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| CN202916344U true CN202916344U (en) | 2013-05-01 |
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| CN 201220645781 Expired - Lifetime CN202916344U (en) | 2012-11-30 | 2012-11-30 | A high-temperature molten glass resistivity testing system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391179A (en) * | 2014-12-16 | 2015-03-04 | 成都光明光电股份有限公司 | Conductivity test device and method for molten glass |
| CN104807740A (en) * | 2014-12-29 | 2015-07-29 | 成都泰轶斯科技有限公司 | Testing device of high temperature erosiveness of electrodes for glass electric melting furnace and method thereof |
| CN105425047A (en) * | 2015-12-30 | 2016-03-23 | 芜湖东旭光电装备技术有限公司 | Method for measuring high-temperature resistivity of stannic oxide electrode |
| CN105929243A (en) * | 2016-06-24 | 2016-09-07 | 深圳大学 | Method used for measuring optical glass resistance and device using same |
-
2012
- 2012-11-30 CN CN 201220645781 patent/CN202916344U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391179A (en) * | 2014-12-16 | 2015-03-04 | 成都光明光电股份有限公司 | Conductivity test device and method for molten glass |
| CN104391179B (en) * | 2014-12-16 | 2017-05-24 | 成都光明光电股份有限公司 | Conductivity test device and method for molten glass |
| CN104807740A (en) * | 2014-12-29 | 2015-07-29 | 成都泰轶斯科技有限公司 | Testing device of high temperature erosiveness of electrodes for glass electric melting furnace and method thereof |
| CN104807740B (en) * | 2014-12-29 | 2017-12-08 | 成都泰轶斯科技有限公司 | A kind of rodent test device of glass electric furnace electricity consumption very high temperature and method |
| CN105425047A (en) * | 2015-12-30 | 2016-03-23 | 芜湖东旭光电装备技术有限公司 | Method for measuring high-temperature resistivity of stannic oxide electrode |
| CN105425047B (en) * | 2015-12-30 | 2018-06-19 | 芜湖东旭光电装备技术有限公司 | A kind of method for the high-temperature resistivity for measuring stannic oxide electrode |
| CN105929243A (en) * | 2016-06-24 | 2016-09-07 | 深圳大学 | Method used for measuring optical glass resistance and device using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shijiazhuang Gemstone Electronic Glass Co.,Ltd. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: 2013110000068 Denomination of utility model: A high-temperature molten glass resistivity testing system Granted publication date: 20130501 License type: Common License Record date: 20131211 Assignee: WUHU DONGXU OPTOELECTRONIC EQUIPMENT TECHNOLOGY Co.,Ltd. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: 2013110000065 Denomination of utility model: A high-temperature molten glass resistivity testing system Granted publication date: 20130501 License type: Common License Record date: 20131211 Assignee: SHIJIAZHUANG DONGXU PHOTOELECTRICITY EQUIPMENT TECHNOLOGY CO.,LTD. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: 2013110000067 Denomination of utility model: A high-temperature molten glass resistivity testing system Granted publication date: 20130501 License type: Common License Record date: 20131211 Assignee: WUHU TUNGHSU PHOTOELECTRIC SCIENCE AND TECHNOLOGY Co.,Ltd. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: 2013110000066 Denomination of utility model: A high-temperature molten glass resistivity testing system Granted publication date: 20130501 License type: Common License Record date: 20131211 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHIJIAZHUANG DONGXU PHOTOELECTRICITY EQUIPMENT TECHNOLOGY CO.,LTD.|DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd.|WUHU TUNGHSU PHOTOELECTRIC SCIENCE AND TECHNOLOGY Co.,Ltd.|WUHU DONGXU OPTOELECTRONIC EQUIPMENT TECHNOLOGY Co.,Ltd.|ZHENGZHOU XUFEI OPTOELECTRONIC TECHNOLOGY Co.,Ltd.|SHIJIAZHUANG XUXIN PHOTOELECTRIC TECHNOLOGY Co.,Ltd.|FUZHOU DONGXU OPTOELECTRONICS TECHNOLOGY CO.,LTD. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: 2016990000060 Denomination of utility model: A high-temperature molten glass resistivity testing system Granted publication date: 20130501 License type: Common License Record date: 20160303 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Effective date of registration: 20191212 Granted publication date: 20130501 |
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Date of cancellation: 20200804 Granted publication date: 20130501 |
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Effective date of registration: 20200916 Address after: 050035 No. 9, the Yellow River Avenue, hi tech Zone, Hebei, Shijiazhuang Patentee after: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 050000 Zhujiang Road 369, hi tech Zone, Hebei, Shijiazhuang Patentee before: TUNGHSU GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
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| CX01 | Expiry of patent term |