CN103091349A - Visualization experiment device for dynamic process of interaction between water and molten metal - Google Patents

Visualization experiment device for dynamic process of interaction between water and molten metal Download PDF

Info

Publication number
CN103091349A
CN103091349A CN2013100152160A CN201310015216A CN103091349A CN 103091349 A CN103091349 A CN 103091349A CN 2013100152160 A CN2013100152160 A CN 2013100152160A CN 201310015216 A CN201310015216 A CN 201310015216A CN 103091349 A CN103091349 A CN 103091349A
Authority
CN
China
Prior art keywords
water
heating
reaction vessel
water tank
motlten metal
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.)
Granted
Application number
CN2013100152160A
Other languages
Chinese (zh)
Other versions
CN103091349B (en
Inventor
林萌
张政铭
周源
钟明君
李延凯
侯东
杨燕华
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.)
Shanghai Jiaotong University
Original Assignee
Shanghai Jiaotong University
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 Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN201310015216.0A priority Critical patent/CN103091349B/en
Publication of CN103091349A publication Critical patent/CN103091349A/en
Application granted granted Critical
Publication of CN103091349B publication Critical patent/CN103091349B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The invention discloses a visualization experiment device for a dynamic process of interaction between water and a molten metal. The device comprises a heating water tank, a water injection pipe and a reaction container, wherein the heating water tank is used for storing experimental water and maintaining a required temperature of the experimental water; the water injection pipe is arranged at the lower end of the heating water tank and integrally connected with the heating water tank; the reaction container is arranged below the water injection pipe, is used for containing the molten metal and heating the molten metal and comprises a reaction container pedestal and a heating plate, the heating plate is arranged in the reaction container pedestal, and a reaction process visual window is arranged on the reaction container pedestal. According to the visualization experiment device, the water injection speed, the water injection rate and the change from water column injection to water drop injection of the experimental water can be adjusted, the experimental process is externally and directly photographed through the reaction process visual window, and the reaction processes of an upper liquid level and a lower liquid level of the non-transparent molten metal can be simultaneously observed in the interaction process of water and the molten metal, thereby being favorable for the researches on types and occurrence mechanisms of the interactions between the water and the molten metal.

Description

Water and motlten metal interaction dynamic process visual experimental apparatus
Technical field
The present invention relates to water and motlten metal interaction experiment and experimentation is carried out the simultaneous observation technical field, specifically a kind of water and motlten metal interaction dynamic process visual experimental apparatus.
Background technology
The phenomenon that the difficult volatility fused mass of high temperature and the interaction of low temperature effumability cooling medium produce explosive damage may occur in the serious core melt down accident of nuclear reactor, also may occur in metallurgical industry converter accident.Because interacting, fused mass and cooling medium may cause huge economic loss and environmental disruption, so this complicated physical phenomenon is an important research object in the security study field in the world at present.
Inject the interaction visualized experiment of motlten metal by water, help its interaction genesis mechanism and course of reaction are carried out more deep research.But due to the opacity of motlten metal, experimental provision in the past often can only observe the above interaction process of motlten metal liquid level.This device is in water and motlten metal interaction process, can observe the course of reaction below opaque level of molten metal top and liquid level simultaneously, and can adjust and maintenance water and molten metal temperature according to the experiment demand, control the water injection rate IR, change the water rate of injection, help water and motlten metal interaction type and genesis mechanism are studied.
Summary of the invention
The present invention is directed to above shortcomings in prior art, a kind of water and motlten metal interaction dynamic process visual experimental apparatus are provided.
The present invention is achieved by the following technical solutions.
A kind of water and motlten metal interaction dynamic process visual experimental apparatus comprise heating water tank, water injection pipe and reaction vessel, wherein:
-heating water tank is used for the storage of experimental water and keeps temperature required;
-water injection pipe is arranged on the heating water tank lower end, and is connected to an integral body with heating water tank; Be used for guiding water and inject reaction vessel, simultaneously, be used for regulating the water injection rate IR and adjust the diameter that injects continuous water column or single water droplet;
-reaction vessel is arranged on the below of water injection pipe, is used for containing the storage motlten metal and to its heating;
Described reaction vessel comprises reaction vessel pedestal and heating plate, and described heating plate is arranged on the inside of reaction vessel pedestal, and described reaction vessel pedestal is provided with the course of reaction visual window.
The side inwall of described reaction vessel pedestal has some temperature detection holes; The side outer wall of described reaction vessel pedestal is connected to hollow tubing conductor along each temperature detection eyelet welding, the passage that described hollow tubing conductor and temperature detection hole formation run through; Be provided with the reaction vessel inlet with the water injection pipe corresponding section on described reaction vessel pedestal.
Described temperature detection is provided with armoured thermocouple in the hole, and motlten metal cooled and solidified gradually in described hollow tubing conductor forms sealing automatically.
Described hollow tubing conductor length is 10cm to 15cm.
Described course of reaction visual window front end is provided with glass cover-plate, and described glass cover-plate is fixedly connected with the reaction vessel pedestal, adds Graphite pad between glass cover-plate and course of reaction visual window.
Described course of reaction visual window is silica glass material, and described silica glass material is obtained 900 ℃ of annealed processing by the thick quartz glass plate of 15mm.
The rear portion of described reaction vessel pedestal is the heating plate cover plate, and the reaction vessel base interior forms cavity, and heating plate is arranged in this cavity; Be filled with heat-conducting glue in gap between described heating plate and reaction vessel pedestal.It is good that heat-conducting glue guarantees that heating plate conducts heat to motlten metal.
Described heating plate adopts electrical heating, and its heating power can be regulated.
Described heating water tank top cover place is provided with water filling port, and the side inwall of described heating water tank is provided with the temperature detection hole, and described temperature detection is provided with thermopair in the hole, and described thermopair adopts sealant sealing in the temperature detection hole; Be provided with heating arrangement in described heating water tank, described heating arrangement is heating arrangement, and is connected to the water tank side wall surface; Described heating arrangement power can be regulated.Described water filling port is used for to the water tank water filling, keeps simultaneously water tank to communicate with atmosphere and keeps the water tank normal pressure.
The water delivering orifice ozzle of described water injection pipe and rising pipe bottom flexible connection, the bottom water outlet of described water injection pipe is Height Adjustable apart from reaction vessel; Described water injection pipe is provided with valve, and described valve opening can be regulated.Valve is used for regulating the water injection rate IR, can realize being injected into from a large amount of water columns continuously the transformation that single water droplet injects; Water injection pipe water delivering orifice ozzle and rising pipe bottom flexible connection, the replaceable nozzle diameter dimension is to change water column or drop diameter; Can change the water rate of injection by regulating water injection pipe bottom water outlet apart from the reaction vessel height.
The water that provides of the present invention and motlten metal interaction dynamic process visual experimental apparatus, its parts mainly adopt stainless steel material.The present invention is in water and motlten metal interaction process, the experimental provision that can observe the course of reaction below opaque level of molten metal top and liquid level simultaneously, in addition, can also adjust and maintenance water and molten metal temperature according to the experiment demand, control the water injection rate IR, realization is injected into from a large amount of water columns continuously the transformation that single water droplet injects, and changes the water rate of injection, thereby better understands water and motlten metal interaction rule.
Description of drawings
Fig. 1 is the overall schematic of this experimental provision, wherein, (a) is front elevation, is (b) side view;
Fig. 2 is the reaction vessel pedestal, wherein, (a) is front elevation, is (b) cut-open view, is (c) side view;
In figure: 1 is water filling port, and 2 for water tank temperature detects the hole, and 3 is heating water tank, 4 is valve, and 5 is the water injection pipe ozzle, and 6 is water injection pipe, 7 is reaction vessel, and 8 is glass cover-plate, and 9 is the course of reaction visual window, 10 is the reaction vessel pedestal, and 11 is Graphite pad, and 12 is heating plate, 13 is the heating plate cover plate, and 14 is the reaction vessel inlet, and 15 is heating device of water tank, 16 is hollow tubing conductor, and 17 is reaction vessel temperature detection hole.
Embodiment
The below elaborates to embodiments of the invention: the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprises heating water tank 3, water injection pipe 6 and reaction vessel 7, wherein:
-heating water tank 3 is used for the storage of experimental water and keeps temperature required;
-water injection pipe 6 is arranged on heating water tank 3 lower ends, and is connected to an integral body with heating water tank 3; Be used for guiding water and inject reaction vessel 7, simultaneously, be used for regulating the water injection rate IR and adjust the diameter that injects continuous water column or single water droplet;
-reaction vessel 7 is arranged on the below of water injection pipe 6, is used for containing the storage motlten metal and to its heating;
As shown in Figure 2, reaction vessel 7 comprises reaction vessel pedestal 10 and heating plate 12, and heating plate 12 is arranged on the inside of reaction vessel pedestal 10, and reaction vessel pedestal 10 is provided with course of reaction visual window 9.
Further, the side inwall of reaction vessel pedestal 10 has some reaction vessel temperature detection hole 17; The side outer wall of reaction vessel pedestal 10,17 are welded with hollow tubing conductor 16 along each reaction vessel temperature detection hole, and hollow tubing conductor 16 forms with reaction vessel temperature detection hole 17 passage that runs through; Be provided with reaction vessel inlet 14 with water injection pipe 6 corresponding sections on reaction vessel pedestal 10.
Further, be provided with armoured thermocouple in reaction vessel temperature detection hole 17, motlten metal cooled and solidified gradually in hollow tubing conductor 16 forms sealing automatically.
Further, hollow tubing conductor 16 length are 10cm to 15cm.
Further, course of reaction visual window 9 front ends are provided with glass cover-plate 8, and glass cover-plate 8 is screwed with reaction vessel pedestal 10 and is connected, and also can be fixedly connected with by other means, adds Graphite pad 11 between glass cover-plate 8 and course of reaction visual window 9.
Further, course of reaction visual window 9 is silica glass material, and silica glass material is obtained 900 ℃ of annealed processing by the thick quartz glass plate of 15mm.
Further, be filled with heat-conducting glue in the gap between heating plate 12 and reaction vessel pedestal 10.It is good that heat-conducting glue guarantees that heating plate 12 conducts heat to motlten metal.
Further, heating plate 12 adopts electrical heating, and its heating power can be regulated.
Further, the rear portion of reaction vessel pedestal 10 is made as heating plate cover plate 13, makes the inner cavity that forms of reaction vessel pedestal 10, and heating plate 12 is arranged in this cavity.Heating plate cover plate 13 is screwed on the base wall that is connected to reaction vessel pedestal 10.
Further, heating water tank 3 top cover places are provided with water filling port 1, and the side inwall of heating water tank 3 is provided with water tank temperature and detects hole 2, and water tank temperature detects in hole 2 and is provided with thermopair, and thermopair adopts sealant sealing in water tank temperature detects hole 2; Be provided with heating arrangement 15 in heating water tank 3, heating arrangement 15 is electric heater, and is connected to heating water tank 3 side wall surfaces; Heating arrangement power can be regulated.Water filling port 1 is used for to heating water tank 3 water fillings, keeps simultaneously heating water tank 3 to communicate with atmosphere and keeps the water tank normal pressure.
Further, the water delivering orifice ozzle of water injection pipe 6 and rising pipe bottom flexible connection, the bottom water outlet of water injection pipe 6 is Height Adjustable apart from reaction vessel 7; Water injection pipe 6 is provided with valve 4, and valve 4 apertures can be regulated.Valve 4 is used for regulating the water injection rate IR, can realize being injected into from a large amount of water columns continuously the transformation that single water droplet injects; Water injection pipe 6 water delivering orifice ozzles and rising pipe bottom flexible connection, the replaceable nozzle diameter dimension is to change water column or drop diameter; Can change the water rate of injection by regulating water injection pipe bottom water outlet apart from the reaction vessel height.
The water filling port 1 of the present embodiment by heating water tank top cover place be to the water tank water filling, and keep water tank to communicate with atmosphere keeping the water tank normal pressure.The heating arrangement 15 of water tank is used for the heating water tank experimental water, and keeps experimental water temperature required.The water tank sidewall has water tank temperature and detects hole 2, is used for installing thermopair, experimental water temperature in the Real-Time Monitoring water tank.
When experimental water reach temperature required and stable after, inject reaction vessel inlet 14 by water injection pipe, the water injection rate IR is controlled by the adjustable valve 4 of aperture, can carry out a large amount of water columns continuously and inject and the injection of single water droplet.Water column or drop diameter can be adjusted by water injection pipe ozzle 5, and the water injection pipe ozzle is detachably changed.
Water and motlten metal react in reaction vessel 7, and course of reaction sees through course of reaction visual window 9 and carries out observational record, and motlten metal heats by electric boiling plate 12, and it is temperature required to keep experiment.The madial wall of reaction vessel pedestal 10 has reaction vessel temperature detection hole 17, is used for installing armoured thermocouple, Real-Time Monitoring molten metal temperature.Form at the hollow tubing conductor 16 of reaction vessel side outer wall and temperature detection hole the passage that runs through, motlten metal cooled and solidified gradually in conduit forms sealing automatically.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.

Claims (10)

1. a water and motlten metal interaction dynamic process visual experimental apparatus, is characterized in that, comprises heating water tank, water injection pipe and reaction vessel, wherein:
-heating water tank is used for the storage of experimental water and keeps temperature required;
-water injection pipe is arranged on the heating water tank lower end, and is connected to an integral body with heating water tank;
-reaction vessel is arranged on the below of water injection pipe, is used for containing the storage motlten metal and to its heating;
Described reaction vessel comprises reaction vessel pedestal and heating plate, and described heating plate is arranged on the inside of reaction vessel pedestal, and described reaction vessel pedestal is provided with the course of reaction visual window.
2. water according to claim 1 and motlten metal interaction dynamic process visual experimental apparatus, is characterized in that, the side inwall of described reaction vessel pedestal has some temperature detection holes; The side outer wall of described reaction vessel pedestal is connected to hollow tubing conductor along each temperature detection eyelet welding, the passage that described hollow tubing conductor and temperature detection hole formation run through; Be provided with the reaction vessel inlet with the water injection pipe corresponding section on described reaction vessel pedestal.
3. water according to claim 2 and motlten metal interaction dynamic process visual experimental apparatus, it is characterized in that, described reaction vessel temperature detection is provided with armoured thermocouple in the hole, and motlten metal cooled and solidified gradually in hollow tubing conductor forms sealing automatically.
4. water according to claim 2 and motlten metal interaction dynamic process visual experimental apparatus, is characterized in that, described hollow tubing conductor length is 10cm to 15cm.
5. the described water of any one and motlten metal interaction dynamic process visual experimental apparatus according to claim 1 to 4, it is characterized in that, described course of reaction visual window front end is provided with glass cover-plate, described glass cover-plate is fixedly connected with the reaction vessel pedestal, adds Graphite pad between described glass cover-plate and course of reaction visual window.
6. water according to claim 5 and motlten metal interaction dynamic process visual experimental apparatus, it is characterized in that, described course of reaction visual window is silica glass material, and described silica glass material is obtained 900 ℃ of annealed processing by the thick quartz glass plate of 15mm.
7. the described water of any one and motlten metal interaction dynamic process visual experimental apparatus according to claim 1 to 4, it is characterized in that, the rear portion of described reaction vessel pedestal is the heating plate cover plate, and the reaction vessel base interior forms cavity, and heating plate is arranged in this cavity; Be filled with heat-conducting glue in gap between described heating plate and reaction vessel pedestal.
8. water according to claim 7 and motlten metal interaction dynamic process visual experimental apparatus, is characterized in that, described heating plate adopts electrical heating, and its heating power can be regulated.
9. water according to claim 1 and motlten metal interaction dynamic process visual experimental apparatus, it is characterized in that, described heating water tank top cover place is provided with water filling port, the side inwall of described heating water tank is provided with water tank temperature and detects the hole, described water tank temperature detects in the hole and is provided with thermopair, and described thermopair adopts sealant sealing in water tank temperature detects the hole; Be provided with heating arrangement in described heating water tank, described heating arrangement is heating arrangement, and is connected to the water tank side wall surface; Described heating arrangement power can be regulated.
10. water according to claim 1 and motlten metal interaction dynamic process visual experimental apparatus, it is characterized in that, the water delivering orifice ozzle of described water injection pipe and rising pipe bottom flexible connection, the bottom water outlet of described water injection pipe is Height Adjustable apart from reaction vessel; Described water injection pipe is provided with valve, and described valve opening can be regulated.
CN201310015216.0A 2013-01-15 2013-01-15 Visualization experiment device for dynamic process of interaction between water and molten metal Active CN103091349B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310015216.0A CN103091349B (en) 2013-01-15 2013-01-15 Visualization experiment device for dynamic process of interaction between water and molten metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310015216.0A CN103091349B (en) 2013-01-15 2013-01-15 Visualization experiment device for dynamic process of interaction between water and molten metal

Publications (2)

Publication Number Publication Date
CN103091349A true CN103091349A (en) 2013-05-08
CN103091349B CN103091349B (en) 2014-11-19

Family

ID=48204181

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310015216.0A Active CN103091349B (en) 2013-01-15 2013-01-15 Visualization experiment device for dynamic process of interaction between water and molten metal

Country Status (1)

Country Link
CN (1) CN103091349B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913544A (en) * 2014-03-18 2014-07-09 上海交通大学 Melts and coolant interacting relative thermal-hydraulic research experiment water tank
CN104006675A (en) * 2014-05-27 2014-08-27 上海交通大学 Remote control pneumatic sealing valve device at bottom of high temperature furnace
CN104569028A (en) * 2015-01-09 2015-04-29 上海交通大学 Experimental device applied to interaction of large-scale liquid lithium and coolant
CN106409349A (en) * 2016-09-30 2017-02-15 中山大学 Experimental system for forming characteristic of sodium-cooled fast reactor debris bed
CN107421983A (en) * 2017-06-15 2017-12-01 上海交通大学 Fused mass thermal-hydraulic experiment system related to cooling agent interaction
CN110146416A (en) * 2019-05-15 2019-08-20 合肥工业大学 A kind of experimental provision for simulating molten metal drop and water phase interaction
CN110274473A (en) * 2019-06-24 2019-09-24 合肥工业大学 A kind of visualization Si-Mo rod firing space device for molten metal and water Effect study
CN111131677A (en) * 2019-12-30 2020-05-08 安徽鼎恒再制造产业技术研究院有限公司 Visualization device for graphite catheter for molten metal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02161353A (en) * 1988-12-15 1990-06-21 Nippon Steel Corp Device and method for visualization pattern experiment using low melting alloy
JP2005030874A (en) * 2003-07-10 2005-02-03 Japan Nuclear Cycle Development Inst States Of Projects Entrapping-type thermal interaction tester
CN201145676Y (en) * 2008-01-18 2008-11-05 上海梅山钢铁股份有限公司 Iron ore melting dripping test device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02161353A (en) * 1988-12-15 1990-06-21 Nippon Steel Corp Device and method for visualization pattern experiment using low melting alloy
JP2005030874A (en) * 2003-07-10 2005-02-03 Japan Nuclear Cycle Development Inst States Of Projects Entrapping-type thermal interaction tester
CN201145676Y (en) * 2008-01-18 2008-11-05 上海梅山钢铁股份有限公司 Iron ore melting dripping test device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李小燕 等: "水蒸汽爆炸粗混合阶段机理研究的实验设计", 《核动力工程》 *
胡逊祥 等: "熔融金属锡在水中运动时压力波动特性实验研究", 《原子能科学技术》 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913544A (en) * 2014-03-18 2014-07-09 上海交通大学 Melts and coolant interacting relative thermal-hydraulic research experiment water tank
CN104006675A (en) * 2014-05-27 2014-08-27 上海交通大学 Remote control pneumatic sealing valve device at bottom of high temperature furnace
CN104006675B (en) * 2014-05-27 2016-02-10 上海交通大学 Remote control pneumatic sealed valve device bottom high temperature furnace
CN104569028A (en) * 2015-01-09 2015-04-29 上海交通大学 Experimental device applied to interaction of large-scale liquid lithium and coolant
CN106409349A (en) * 2016-09-30 2017-02-15 中山大学 Experimental system for forming characteristic of sodium-cooled fast reactor debris bed
CN106409349B (en) * 2016-09-30 2018-02-13 中山大学 A kind of experimental system of sodium-cooled fast reactor fragment bed Formation and characteristics
CN107421983A (en) * 2017-06-15 2017-12-01 上海交通大学 Fused mass thermal-hydraulic experiment system related to cooling agent interaction
CN110146416A (en) * 2019-05-15 2019-08-20 合肥工业大学 A kind of experimental provision for simulating molten metal drop and water phase interaction
CN110274473A (en) * 2019-06-24 2019-09-24 合肥工业大学 A kind of visualization Si-Mo rod firing space device for molten metal and water Effect study
CN110274473B (en) * 2019-06-24 2024-05-24 合肥工业大学 Visual silicon-molybdenum rod hearth device for researching action of molten metal and water
CN111131677A (en) * 2019-12-30 2020-05-08 安徽鼎恒再制造产业技术研究院有限公司 Visualization device for graphite catheter for molten metal

Also Published As

Publication number Publication date
CN103091349B (en) 2014-11-19

Similar Documents

Publication Publication Date Title
CN103091349B (en) Visualization experiment device for dynamic process of interaction between water and molten metal
RU2014133866A (en) METHOD AND DEVICE FOR PRODUCING HIGH PURE MAGNESIUM
CN103913544A (en) Melts and coolant interacting relative thermal-hydraulic research experiment water tank
JP2012201940A5 (en)
CN203140930U (en) Soldering tin melting furnace with automatic feeding device
CN204396884U (en) Molten drop sprays prepares soldered ball device
CN204262337U (en) A kind of silver alloy vacuum-casting equipment
CN203521383U (en) Degumming tool
CN203140936U (en) Soldering tin melting furnace with soldering tin recovery device
CN110274473B (en) Visual silicon-molybdenum rod hearth device for researching action of molten metal and water
CN103121139B (en) Soldering tin melting furnace with automatic feeding device
CN205495587U (en) Reaction kettle
CN202533312U (en) Experimental smelting furnace sample cooling device
CN102240530A (en) Rotating nozzle type liquid lithium-tin alloy reactor
CN202501745U (en) Thermal insulation melting furnace
CN203140931U (en) Solder melting furnace
CN206902207U (en) A kind of stripping formula electroslag furnace bottom coohng device
CN204138358U (en) Salt discharge plugging device in the middle part of chlorination furnace
CN103394786A (en) Liquid metal transferring device and transferring method
CN204156038U (en) Electrolyte equipment for purifying
CN204479448U (en) A kind of low vacuum adopts the liquid lithium corrosion tester of inert gas shielding
CN205074483U (en) A fixing device that is used for continuous temperature measurement equipment of package in middle of continuous casting
CN204638133U (en) A kind of Novel supercritical fine particles preparation facilities
CN204108253U (en) Horizontally continuous casting copper pipes processing unit (plant)
CN203083358U (en) Solder protecting smelting device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant