CN103217636B - Electrode test sample tube of ignition discharge tube and quick obtaining method thereof - Google Patents
Electrode test sample tube of ignition discharge tube and quick obtaining method thereof Download PDFInfo
- Publication number
- CN103217636B CN103217636B CN201310118907.3A CN201310118907A CN103217636B CN 103217636 B CN103217636 B CN 103217636B CN 201310118907 A CN201310118907 A CN 201310118907A CN 103217636 B CN103217636 B CN 103217636B
- Authority
- CN
- China
- Prior art keywords
- electrode
- end cap
- sample tube
- ignition discharge
- tube
- 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.)
- Active
Links
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses an electrode test sample tube of an ignition discharge tube. The electrode test sample tube comprises a tube body, wherein electrode supporting assemblies are respectively arranged at the two ends of the tube body; the electrode supporting assemblies consist of electrode supporting rods and electrode end covers, wherein the electrode supporting rods are used for mounting test electrodes, and the electrode end covers are connected with the electrode supporting rods; one ends of the electrode supporting rods, which are used for mounting the test electrodes, extend inside the tube body, and the electrode end covers are respectively connected with tube body end covers of the tube body; a discharge tube assembly is connected to the electrode supporting rod which is used for mounting negative electrodes, and extends outside the related electrode end cover; and sealing rings are arranged between the tube body end covers and the electrode end covers. According to the electrode test sample tube of the ignition discharge tube and a quick obtaining method of the electrode test sample tube, the electrical performance test cycle for the electrode test sample tube of the ignition discharge tube is greatly shortened, the production cycle of the ignition discharge tube is shortened, and the continuity of ignition discharge tube production is guaranteed; and main parts and components of the electrode test sample tube can be repeatedly reused, so that the production and test costs are effectively reduced.
Description
Technical field
The present invention relates to discharge tube field, be specifically related to a kind of ignition discharge pipe electrode experimental sample tube and quick preparation method thereof.
Background technology
Ignition discharge tube, being widely used in the Large-Scale Equipments such as aeromotor, boiler, oil field hereinafter referred to as " discharge tube ", is the key core device of its firing system.The performance index such as dynamic perfromance, mission life of discharge tube to voltage breakdown have very strict requirement, and determine that namely the key factor of these performance index is the electrode of discharge tube.
Because the method such as constituent analysis, microscopic examination can accurately not differentiate that whether discharge tube electrode material is qualified, therefore in current discharge tube production procedure, the electrode material of each batch must carry out engineer testing, verifies that it can put into production after qualified.
All the time, according to the normal technological process of production, the electrode material of new lot is made discharge tube finished product, and then carry out the unique method that every electric performance test is the test of discharge tube electrode.The overall process of electric performance test only needs 3 ~ 4 days, and manufacture electrode experimental sample tube according to current method and need tens procedures such as experience cleaning, assembling, soldering, correction, secondary cleaning, sealing-in, predischarge, annealing, exhaust, seasoned, press seal, welding, the whole cycle was more than 10 days, therefore the cycle causing whole electrode to be tested is very long, and this continuity of producing for discharge tube is very disadvantageous.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and greatly can shorten the ignition discharge pipe electrode experimental sample tube in discharge tube electric performance test cycle and quick preparation method thereof.
To achieve these goals, the technical solution used in the present invention is:
This ignition discharge pipe electrode experimental sample tube, comprises body, is respectively equipped with electrode supporting assembly at body two ends; Described electrode supporting assembly, is made up of the electrode supporting bar of installation test electrode and the electrode end cap that is connected with electrode supporting bar; Tubular body is stretched in electrode supporting bar one end of installation test electrode, and electrode end cap is connected with the body end cap of body respectively; The electrode supporting bar of installation negative electrode is connected with comb assembly, and described comb assembly extends to the outside of electrode end cap; O-ring seal is provided with between described body end cap and electrode end cap.
Described electrode supporting bar is provided with electrode mounting hole, and after test electrode loads electrode mounting hole, test electrode and electrode supporting bar are compressed by electrode trip bolt.
Described body end cap is connected by fastening bolt with electrode end cap.
Cover at body end cap and electrode tip and be equipped with the edge of a knife groove that cross section is knife edge structure, the edge of a knife groove that body end cap and electrode tip cover is oppositely arranged; O-ring seal is located at body end cap and electrode tip and covers in the edge of a knife groove that is oppositely arranged.
Described body, comprise body end cap and glass shell, glass shell is connected by body crossover sub with body end cap.
Described comb assembly, the metal comb comprising glass comb and be connected with cathode-supported bar, glass comb is connected by comb crossover sub with metal comb.
The quick preparation method of this ignition discharge pipe electrode experimental sample tube, comprises the following steps:
(1) all parts and test electrode are cleaned;
(2) by one end of test electrode rounding outwardly, load in the electrode mounting hole of electrode supporting bar, and electrode trip bolt is screwed in electrode supporting bar, with fastening test electrode;
(3) the electrode supporting assembly being provided with test electrode is docked with body respectively, and between the edge of a knife groove of joint, O-ring seal is installed;
(4) after fastening bolt being passed the bolt hole of body end cap and electrode end cap, coordinate fastening with gland nut, the O-ring seal in extruding edge of a knife groove, completes the airtight sealing of experimental sample tube;
(5) the sample pipe assembled is exhausted and seasoned after, namely become ignition discharge tube electrode experimental sample tube.
The invention has the advantages that: this ignition discharge pipe electrode experimental sample tube and fast preparation method, by adopting the mode of hard metal edge of a knife groove extruding soft metal O-ring seal, achieving the airtight sealing requirement of experimental sample tube; Adopt the mode that compresses from the side of screw, achieve being fixedly connected with of test electrode and electrode supporting assembly; Not only shorten the electric performance test cycle of ignition discharge pipe electrode experimental sample tube greatly, and then shorten the production cycle of ignition discharge tube, thus ensure that the continuity that ignition discharge tube is produced; And the main parts size of electrode experimental sample tube can repetitive cycling use, and effectively reduces pilot production cost.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of instructions of the present invention below and figure is briefly described:
Fig. 1 is the structural representation of ignition discharge pipe electrode experimental sample tube of the present invention;
Fig. 2 is the cathode-supported modular construction schematic diagram of ignition discharge pipe electrode experimental sample tube of the present invention;
Fig. 3 is the right view of cathode-supported assembly in Fig. 2;
Fig. 4 is the structural representation of the body of ignition discharge pipe electrode experimental sample tube of the present invention;
Fig. 5 is the left view of Fig. 4 body;
Fig. 6 is the structural representation of the anode-supported assembly of ignition discharge pipe electrode experimental sample tube of the present invention;
Fig. 7 is the left view of Fig. 6 anode-supported assembly;
Fig. 8 is the structural representation of the electrode trip bolt of ignition discharge pipe electrode experimental sample tube of the present invention;
Fig. 9 is the left view of Fig. 8 electrode trip bolt;
Figure 10 is the test electrode schematic diagram of ignition discharge pipe electrode experimental sample tube of the present invention;
Figure 11 is the left view of Figure 10 test electrode;
Figure 12 is the ring structure schematic diagram of ignition discharge pipe electrode experimental sample tube of the present invention;
Figure 13 is the vertical view of Figure 12 O-ring seal;
Mark in above-mentioned figure is:
1, cathode-supported assembly, 2, O-ring seal, 3, body, 4, electrode trip bolt, 5, test electrode, 6, anode-supported assembly, 7, fastening bolt, 8, gland nut, 11, glass comb, 12, comb crossover sub, 13, metal comb, 14, negative pole end cap, 15, cathode-supported bar, 31, body end cap, 32, body crossover sub, 33, glass shell, 61, anode-supported bar, 62, anode end cap, 101, threaded hole, 102, electrode mounting hole, 103, bolt hole, 104, edge of a knife groove.
Embodiment
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, this ignition discharge pipe electrode experimental sample tube, comprises body 3, establishes electrode supporting assembly respectively, electrode supporting assembly at body 3 two ends, is made up of the electrode supporting bar of installation test electrode 5 and the electrode end cap that is connected with electrode supporting bar; Body 3 inside is stretched in electrode supporting bar one end of installation test electrode 5, and electrode end cap is connected with the body end cap 31 of body respectively; The electrode supporting bar of installation negative electrode is connected with comb assembly, and comb assembly extends to the outside of electrode end cap; O-ring seal 2 is provided with between body end cap 31 and electrode end cap.
Electrode supporting assembly divides anode-supported assembly 6 and cathode-supported assembly 1, and electrode supporting bar divides anode-supported bar 61 and cathode-supported bar 15, and electrode end cap is divided into anode end cap 62 and negative pole end cap 14; Cathode-supported assembly 1, comprises the cathode-supported bar 15 that body 3 is stretched in one end, and negative electrode is installed in one end that cathode-supported bar 15 stretches into body 3; The other end of cathode-supported bar 15 is provided with negative pole end cap 14, if cathode-supported bar 15 one end of negative pole end cap 14 is connected with comb assembly, comb assembly extends to outside negative pole end cap 14; Anode-supported assembly 6, comprises the anode-supported bar 61 that body 3 is stretched in one end, and positive electrode is installed in one end that anode-supported bar 61 stretches into body 3, and the other end of anode-supported bar 61 is provided with anode end cap 62; Negative pole end cap 14 and anode end cap 62 are connected with the body end cap 31 of body 3 respectively; O-ring seal 2 is respectively equipped with between body end cap 31 and negative pole end cap 14 and between body end cap 31 and anode end cap 62.This ignition discharge pipe electrode experimental sample tube, anode-supported assembly 6, cathode-supported assembly 1 and body 3 are by assembling formation cavity sealed, cavity is built with pair of parallel cylindrical electrode, this structure is consistent with the ignition discharge tube of practical application, this ensures that theres the accurate instruction of test figure to actual production.
Cathode-supported bar 15 and anode-supported bar 61 are respectively equipped with electrode mounting hole 102, and after negative electrode and positive electrode load electrode mounting hole 102, negative electrode and cathode-supported bar 15 and positive electrode and anode-supported bar 61 are compressed by electrode trip bolt 4; Cathode-supported bar 15 and anode-supported bar 61 are provided with the threaded hole 101 communicated with electrode mounting hole 102 with electrode trip bolt 4 adaptation.
Body end cap 31 is all connected by fastening bolt 7 with anode end cap 62 and negative pole end cap 14; Body end cap 31, anode end cap 62 and negative pole end cap 14 are respectively equipped with bolt hole 103; Gland nut 8 is pressed with at fastening bolt 7 end.
Body end cap 31, anode end cap 62 and negative pole end cap 14 are equipped with the edge of a knife groove 104 for installing O-ring seal 2 that cross section is knife edge structure, and body end cap 31 is oppositely arranged with the edge of a knife groove 104 on negative pole end cap 14 with anode end cap 62 and body end cap 31; O-ring seal 2 is located in edge of a knife groove 104 that body end cap 31 and anode end cap 62 and body end cap 31 and negative pole end cap 14 are oppositely arranged.
Body 3, comprise body end cap 31 and glass shell 33, glass shell 33 is connected by body crossover sub 32 with body end cap 31.
Comb assembly, comprise the metal comb 13 and glass comb 11 that are connected with cathode-supported bar 15, glass comb 11 is connected by comb crossover sub 12 with metal comb 13.
See Fig. 2 ~ Fig. 7, the constituted mode of each assembly is as follows:
Cathode-supported assembly 1, comb crossover sub 12, metal comb 13, negative pole end cap 14 and cathode-supported bar 15 first form an entirety by the mode of soldering, and then glass comb 11 is carried out sealing by fusing by the mode of duration and degree of heating sealing-in and comb crossover sub 12.
Body 3: body end cap 31 and body crossover sub 32 first form an entirety by the mode of soldering, then by two such entirety by the mode of duration and degree of heating sealing-in respectively sealing by fusing in the two ends of glass shell 33.
Anode-supported assembly 6: be made up of by the mode of soldering anode-supported bar 61 and anode end cap 62.
Wherein glass comb 11 and glass shell 33 are DM308 material, and comb crossover sub 12 and body crossover sub 32 are 4J29 and can cut down material, and the expansion coefficient coupling of DM308 and 4J29, such arranges the reliability that can ensure duration and degree of heating sealing by fusing.Metal comb 13, negative pole end cap 14, cathode-supported bar 15, body end cap 31, anode-supported bar 61 and anode end cap 62 are 1Cr18Ni9Ti stainless steel, the resistant to hydrogen performance of 1Cr18Ni9Ti and antioxygenic property good, and the structural strength of material is high, the long-term reusable reliability of electrode experimental sample tube parts can be ensured.
See Fig. 8 ~ Fig. 9, electrode trip bolt 4 selection standard securing member.Fastening bolt 7 and gland nut 8 also selection standard securing member.
See 10 ~ Figure 11, test electrode 5 points of positive electrodes and negative electrode, test electrode 5 is processed into cylindrical, and an end face needs rounding, to prevent point discharge.
See Figure 12 ~ Figure 13, O-ring seal 2 is circular ring structure, adopts soft oxygenless copper material to make.
See Fig. 1 ~ Fig. 7, the cathode-supported assembly 1 of experimental sample tube, body 3 and anode-supported assembly 6 are provided with bolt hole 103 and edge of a knife groove 104.Wherein edge of a knife groove 104 is in the junction of cathode-supported assembly 1 with body 3, and body 3 is equipped with a pair with the junction of anode-supported assembly 6; Bolt hole 103 is then arranged on the periphery of edge of a knife groove 104.
The quick preparation method of this ignition discharge pipe electrode experimental sample tube, only needs the cycle of 1 ~ 2 day, comprises the following steps:
All parts and test electrode 5 are cleaned;
By one end of positive electrode and negative electrode rounding outwardly, positive electrode and negative electrode, by electrode trip bolt 4, are mounted on anode-supported assembly 6 and negative pole props up in the electrode mounting hole 102 of electrode supporting bar corresponding in supporting component 1 respectively;
The anode-supported assembly 6 installing positive electrode and the cathode-supported assembly 1 that installs negative electrode are docked with body 3, with cathode-supported assembly 1 joint, O-ring seal 2 is installed at body end cap 31 and anode-supported assembly 6 and body end cap 31 respectively;
Body end cap 31 with anode end cap 62 and body end cap 31 and negative pole end cap 14 screw in fastening bolt 7, by the fastening effect of fastening bolt 7 and gland nut 8, make the edge of a knife groove 104 crush seal circle 2 of body end cap 31 and anode-supported assembly 6 and body end cap 31 and cathode-supported assembly 1, thus realize the airtight sealing of homogeneous tube;
The sample pipe assembled is exhausted and seasoned after, namely become ignition discharge tube electrode experimental sample tube.
This ignition discharge pipe electrode experimental sample tube, extrudes the mode of soft metal O-ring seal 2 by hard metal edge of a knife groove 104, achieve the airtight sealing requirement of experimental sample tube; Adopt screw to compress the mode of electrode from the side, achieve being fixedly connected with of test electrode 5 and supporting component; This sample tubes can repetitive cycling use, and for the experimental sample tube finishing electrode test, only need remove fastening bolt 7 and gland nut 8, unload the O-ring seal 2 of crimp, then remove electrode trip bolt 4, and unload test electrode 5.The parts disassembled are except O-ring seal 2, and remaining, after cleaning, can reuse.The present invention not only shortens the manufacturing cycle of ignition discharge pipe electrode experimental sample tube greatly, thus is conducive to the continuity of ignition discharge tube production; And the main parts size of electrode experimental sample tube can repetitive cycling use, and effectively reduces pilot production cost.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (7)
1. an ignition discharge pipe electrode experimental sample tube, is characterized in that: comprise body (3), is respectively equipped with electrode supporting assembly at body (3) two ends; Described electrode supporting assembly, is made up of the electrode supporting bar of installation test electrode (5) and the electrode end cap that is connected with electrode supporting bar; Tubular body is stretched in electrode supporting bar one end of installation test electrode (5), and electrode end cap is connected with the body end cap of body (3) respectively; The electrode supporting bar of installation negative electrode is connected with comb assembly, and described comb assembly extends to the outside of electrode end cap; O-ring seal (2) is provided with between described body end cap (31) and electrode end cap.
2. ignition discharge pipe electrode experimental sample tube as claimed in claim 1, it is characterized in that: on described electrode supporting bar, be provided with electrode mounting hole (102), after test electrode (5) loads electrode mounting hole (102), test electrode (5) is compressed by electrode trip bolt (4) with electrode supporting bar.
3. ignition discharge pipe electrode experimental sample tube as claimed in claim 1 or 2, is characterized in that: described body end cap (31) is connected by fastening bolt (7) with electrode end cap.
4. ignition discharge pipe electrode experimental sample tube as claimed in claim 3, it is characterized in that: cover at body end cap (31) and electrode tip and be equipped with the edge of a knife groove that cross section is knife edge structure, the edge of a knife groove that the edge of a knife groove on body end cap (31) and electrode tip cover is oppositely arranged; O-ring seal (2) is located at body end cap (31) and electrode tip and covers in the edge of a knife groove that is oppositely arranged.
5. ignition discharge pipe electrode experimental sample tube as claimed in claim 4, it is characterized in that: described body (3), comprise body end cap (31) and glass shell (33), glass shell (33) is connected by body crossover sub (32) with body end cap (31).
6. ignition discharge pipe electrode experimental sample tube as claimed in claim 5, it is characterized in that: described comb assembly, the metal comb (13) comprising glass comb (11) and be connected with cathode-supported bar (15), glass comb (11) is connected by comb crossover sub (12) with metal comb (13).
7. a quick preparation method for the ignition discharge pipe electrode experimental sample tube described in any one of claim 1-6, is characterized in that: comprise the following steps:
(1) all parts and test electrode are cleaned;
(2) by one end of test electrode rounding outwardly, load in the electrode mounting hole of electrode supporting bar, and electrode trip bolt is screwed in electrode supporting bar, with fastening test electrode;
(3) the electrode supporting assembly being provided with test electrode is docked with body respectively, and between the edge of a knife groove of joint, O-ring seal is installed;
(4) after fastening bolt being passed the bolt hole of body end cap and electrode end cap, coordinate fastening with gland nut, the O-ring seal in extruding edge of a knife groove, completes the airtight sealing of experimental sample tube;
(5) the sample pipe assembled is exhausted and seasoned after, namely become ignition discharge tube electrode experimental sample tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310118907.3A CN103217636B (en) | 2013-04-08 | 2013-04-08 | Electrode test sample tube of ignition discharge tube and quick obtaining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310118907.3A CN103217636B (en) | 2013-04-08 | 2013-04-08 | Electrode test sample tube of ignition discharge tube and quick obtaining method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103217636A CN103217636A (en) | 2013-07-24 |
| CN103217636B true CN103217636B (en) | 2015-03-04 |
Family
ID=48815596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310118907.3A Active CN103217636B (en) | 2013-04-08 | 2013-04-08 | Electrode test sample tube of ignition discharge tube and quick obtaining method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103217636B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579875B (en) * | 2020-06-28 | 2022-06-21 | 西南石油大学 | High-temperature and high-pressure cement slurry conductivity testing device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201364375Y (en) * | 2008-12-31 | 2009-12-16 | 安徽华东光电技术研究所 | Testing device for high-energy igniting discharge tube |
| CN201497755U (en) * | 2009-09-30 | 2010-06-02 | 吉林欧伊尔环保科技发展有限公司 | Electrode checking frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62185139A (en) * | 1986-02-10 | 1987-08-13 | Meidensha Electric Mfg Co Ltd | Vacuum monitor |
| JPH08105819A (en) * | 1994-10-04 | 1996-04-23 | Sumitomo Wiring Syst Ltd | Discharge tube mounting structure for internal combustion engine ignition system tester |
-
2013
- 2013-04-08 CN CN201310118907.3A patent/CN103217636B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201364375Y (en) * | 2008-12-31 | 2009-12-16 | 安徽华东光电技术研究所 | Testing device for high-energy igniting discharge tube |
| CN201497755U (en) * | 2009-09-30 | 2010-06-02 | 吉林欧伊尔环保科技发展有限公司 | Electrode checking frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103217636A (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101924328B (en) | Stack-type multi-gap gas switch | |
| CN105842586B (en) | The inspection method of insulator for spark plug | |
| CN104143801A (en) | Conducting rod supporting structure and pipeline bus using same | |
| CN205092826U (en) | A frock for solar module high -voltage insulation test and EL test | |
| CN107991585B (en) | Basin-type insulator voltage withstand test device | |
| CN103217636B (en) | Electrode test sample tube of ignition discharge tube and quick obtaining method thereof | |
| CN202133746U (en) | Insulation test device of ultra-high rod-type insulating part | |
| CN202662300U (en) | Electrical penetration assembly in nuclear reactor | |
| CN203287472U (en) | A test apparatus for rubber pieces and GIS epoxy bushings of a high-voltage cross-linked cable | |
| WO2021000552A1 (en) | Busbar unit and pipeline busbar | |
| CN102013636B (en) | Planar multi-channel discharge three-electrode coaxial gas spark switch | |
| CN106054044A (en) | Insulation test device for gas filled tank | |
| CN201438604U (en) | Improved multigap metal-ceramic gas discharge tube with external trigger termination | |
| CN203772782U (en) | Double-sheet type measurement test block structure inductance probe for measuring metal corrosion rate | |
| CN204303479U (en) | One ± 800kV ultrahigh voltage direct current wall bushing | |
| CN203178458U (en) | High repeatability standard bubble discharging model device | |
| CN201345316Y (en) | 12kv vacuum switch pipe | |
| CN207883517U (en) | A kind of flow equalizing circuit flowing seasoned chemical conversion for aluminium electrolutic capacitor | |
| CN207069548U (en) | Back-to-back type GIS high-voltage cable connecting devices are used in one kind experiment | |
| CN201503417U (en) | Detection device for ultrahigh vacuum accelerating tube process section | |
| CN202078965U (en) | Corona electrode concentricity adjustment device for coking electric tar precipitator | |
| CN205141354U (en) | Big power laser discharge tube | |
| CN104658855A (en) | Double-ended lamp | |
| CN202523962U (en) | Gas laser tube power supply leading-in structure | |
| CN204464236U (en) | A kind of double-ended lamps |
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 | ||
| CP03 | Change of name, title or address |
Address after: 241000 No.01 Eshan Road, high tech Development Zone, Yijiang District, Wuhu City, Anhui Province Patentee after: ANHUI HUADONG PHOTOELECTRIC TECHNOLOGY INSTITUTE Co.,Ltd. Address before: 241000 Anhui Province, Wuhu city Yijiang District South high tech Development Zone Technology Park mansion Patentee before: Anhui Huadong Polytechnic Institute |
|
| CP03 | Change of name, title or address |