CN102229778B - Anticorrosion conductive coating for metal grounding network and application method thereof - Google Patents
Anticorrosion conductive coating for metal grounding network and application method thereof Download PDFInfo
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- CN102229778B CN102229778B CN201110164247A CN201110164247A CN102229778B CN 102229778 B CN102229778 B CN 102229778B CN 201110164247 A CN201110164247 A CN 201110164247A CN 201110164247 A CN201110164247 A CN 201110164247A CN 102229778 B CN102229778 B CN 102229778B
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- 238000000576 coating method Methods 0.000 title claims abstract description 72
- 239000011248 coating agent Substances 0.000 title claims abstract description 67
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 15
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims description 17
- 238000005260 corrosion Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 12
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 11
- 235000002949 phytic acid Nutrition 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 7
- 239000004902 Softening Agent Substances 0.000 claims description 6
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 6
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims description 6
- 238000003618 dip coating Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007590 electrostatic spraying Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims description 2
- 229940043232 butyl acetate Drugs 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 abstract description 4
- 239000004014 plasticizer Substances 0.000 abstract 2
- -1 polypropylene Polymers 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- ZWLIYXJBOIDXLL-UHFFFAOYSA-N decanedihydrazide Chemical compound NNC(=O)CCCCCCCCC(=O)NN ZWLIYXJBOIDXLL-UHFFFAOYSA-N 0.000 abstract 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 239000010949 copper Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011231 conductive filler Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005554 pickling Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002481 rotproofing Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an anticorrosion conductive coating for a metal grounding network and an application method thereof. The conductive coating is characterized by comprising the following components in mass fraction: 40-50 of epoxy resin, 20-30 of flaky conductive graphite, 8-15 of plasticizers and 3-5 of additive, wherein the plasticizers are at least one of polrvinyl chloride, polypropylene, polyethylene and polyvinyl butyral, the epoxy resin is at least one of E8, E10, E12, E14 and E 20, the additive comprises sebacic dihydrazide and dicyandiamide in the mass ratio of 1:4; the coating can be prepared into a powdery coating and a solvent type coating, and the thickness of a coating layer is 50-250 mum; the coating does not have cross-linking reaction at room temperature and can have cross-linking reaction to form a film only after being heated; the solvent type coating can be of a single-component type and can be stored for a long time; and the coating has thermoplasticity and can be coated and heated many times till a required thickness is reached.
Description
Technical field
The invention belongs to power system metal construction corrosion-resistant field, particularly a kind of metal ground net is with corrosion-resistant conductive coating and method of use thereof.
Technical background
In recent years; Along with the increase of China's power capacity and the rising of voltage range; The operation power security incident that frequent generation causes because of ground net corrosion; The burn into of interchange ground net burns and rebuilds the direct economic loss that causes is huge, and big area also is difficult to the appraisal with the long-time indirect loss that causes that has a power failure.In order to guarantee the normal operation and the safety of power system; The electricinstallation of power station and substation all will be accomplished reliable ground; At present, the ground connection product has copper material, steel, copper sheathed steel, galvanized steel, grounded resistance reducing agent, earthing module, ion grounding electrode etc., and all ground connection products all be unable to do without the metallic conduction net; The solidity to corrosion of metallic conduction net directly influences the application performance of ground net with stability, and the corrosion of metal ground net is the difficult problem of system power ground.
Both can improve the corrosion resisting property of metal ground net at metal ground net surface-coated electrically conducting coating, the stability that can improve ground net again with increase the service life.Electrically conducting coating is divided into doped electrically conducting coating and eigenmode lead coating; Intrinsically conducting coating mainly is to be the electrically conducting coating of filmogen with the intrinsically conducting polymer; The doped electrically conducting coating is to be that the basis adds conductive filler material with the high molecular polymer; Conductive filler material commonly used has copper powder, nickel powder, silver powder or carbon element powder etc., considers that from price and performance synthesis graphite is optimal conductive filler material.Application number is the preparation method that 200920116866.3 Chinese patent provides a kind of anticorrosion current conducting rod, and weak point is the performance that does not indicate coating property and kind and current conducting rod; Application number is that 03125237.0 Chinese invention patent provides a kind of electrically conducting coating, and weak point is to adopt nano-sized carbon to do conductive filler material, costs an arm and a leg limited use.
Summary of the invention
The objective of the invention is deficiency, a kind of corrosion-resistant conductive coating and the method for use on metal ground net are provided to existing metal ground net technology of preparing.
The present invention implements in the following manner:
A kind of metal ground net is used corrosion-resistant conductive coating; Form by epoxy resin, sheet electrically conductive graphite, softening agent and additive, it is characterized in that the mass percent of each component is: epoxy resin 55～65%, sheet electrically conductive graphite 25～35%; Softening agent 5～10%, additive 3～5%; Epoxy resin is at least a among E8, E10, E12, E14 and the E20; Softening agent is at least a in SE, Vestolen PP 7052, Vilaterm and the polyvinyl butyral acetal; Additive is made up of certain herbaceous plants with big flowers diacid two hydrazides and Dyhard RU 100, and the mass ratio of certain herbaceous plants with big flowers diacid two hydrazides and Dyhard RU 100 is 1:4; Said metal ground net uses corrosion-resistant conductive coating to be powder coating or solvent based coating: with each component crushing screening to 100～200 orders, take by weighing various components in proportion, evenly obtain powder coating with ball mill grinding; Each component is dissolved in proportion obtains solvent based coating in the organic solvent, solvent is made up of isopyknic acetone, ETHYLE ACETATE, butylacetate, ethanol and hexanaphthene, and control solid content volume(tric)fraction is 40～60%.
The method of use of above-mentioned coating on metal ground net may further comprise the steps:
1, ground net preparation: blanking is welded into metal ground net, removes welding slag, burr and corner angle are carried out chamfered;
2, surface treatment: oil removing, rust cleaning and phytate are handled, and make the surface form one deck phytate conversion film;
3, coating applies: powder coating can adopt electrostatic spraying, fluidized bed dipping or electrostatic fluidized bed dip-coating method to apply; Solvent based coating can adopt brushing, compressed air spraying, no air high pressure painting or dip-coating method to apply, and improves coat-thickness through repeatedly applying;
4, paint solidification: heating makes paint solidification form coating, and coat-thickness is 50～250 μ m, and Heating temperature is 150-250 ℃, and be 15～30min heat-up time, and Heating temperature and time are depended on epoxy resin type and coat-thickness.
The invention has the advantages that:
Adopt phytate solution to replace conventional phosphatizing liquid that wire netting is carried out surface preparation, can handle the subassembly of iron and steel, copper, duraluminum and different metal simultaneously through adjusting solution composition, suitability is strong, pollution is little; The employing solid epoxy is a main film forming substance, can be mixed with powder coating or solvent based coating as required, satisfies the rotproofing of different structure ground net; Additive is the solidifying agent of hiding, and crosslinking reaction does not take place under the room temperature, has only heating that the crosslinking reaction film forming could take place, and solvent based coating can be single-component and long-term storage; Coating has thermoplasticity, and repeatedly repetitive coatings and heating is until reaching required thickness.
Embodiment
Provide four most preferred embodiments of the present invention below:
Embodiment 1
Steelwork ground net corrosion-resistant conductive coating and use.
The mass percent of each component is in the coating: epoxy resin (E10) 52%, sheet electrically conductive graphite 35%, Vilaterm 3%, polyvinyl butyral acetal 5%, additive 5% (here should be concrete, down together); Coating preparation: each component pulverize separately is screened to 200 orders, evenly obtains powder coating with ball mill grinding.Coating method of use: carry out blanking and welding forming (should specific to material therefor) according to the concrete structure of ground net, remove welding slag, burr and corner angle are carried out chamfered; Adopt oil removing, rust cleaning and phytate to handle and make the surface form one deck phytate conversion film; Preheating makes metal ground net reach 280 ℃, adopts fluidized bed dipping method painting of coating, and heating 25min makes coating generation curing reaction form coating under 220 ℃ of temperature, and coat-thickness is 160～180 μ m.Technical process: steel ground net → oil removing → washing → pickling → washing → phytate processing → preheating → fluidized bed dipping → heating → cooling → product.
Embodiment 2
Duraluminum ground net corrosion-resistant conductive coating and use.
The mass percent of each component is in the coating: epoxy resin (E14) 30%, epoxy resin (E20) 26%, sheet electrically conductive graphite 30%, SE 7%, polyvinyl butyral acetal 3%, additive 4%; The coating preparation: each component is dissolved in the mixed solvent successively, and the solid content of control coating is 50%.The coating method of use: adopt the compressed air spraying method to apply, improve coat-thickness through repeatedly spraying, heating 30min makes coating generation curing reaction form coating under 200 ℃ of temperature, and coat-thickness is 230～250 μ m.Technical process: aluminium ground net → oil removing → washing → pickling → washing → phytate processing → (compressed air spraying → desolventizing) n → heating → cooling → product; N is the spraying number of times.Ground net preparation and surface treatment are with embodiment 1.
Embodiment 3
Copper and copper alloy ground net corrosion-resistant conductive coating and use.
The mass percent of each component is in the coating: epoxy resin (E8) 58%, and sheet electrically conductive graphite 28% gathers third ethene 4%, polyvinyl butyral acetal 6%, additive 4%; With each component pulverize separately to 200 order, evenly obtain powder coating with ball mill grinding; The coating method of use: adopting electrostatic powder spraying to apply, under 220 ℃ of temperature, heat 15min, is 50～60 μ m through adjustment voltage and air-pressure controlling coat-thickness.Technical process: copper ground net → oil removing → washing → pickling → washing → phytate processing → electrostatic spraying → heating → cooling → product; Ground net preparation and surface treatment are with embodiment 1.
Embodiment 4
Copper aluminium mixing material ground net corrosion-resistant conductive coating and use.
The mass percent of each component is in the coating: epoxy resin (E10) 30%, epoxy resin (E14) 34%, sheet electrically conductive graphite 24%, Vilaterm 3%, SE 3%, polyvinyl butyral acetal 3%, additive 3%; Coating preparation:, evenly obtain powder coating with ball mill grinding with each component pulverize separately to 200 order; The coating method of use: preheating makes ground net reach 250 ℃ of temperature, and the electrostatic fluidized bed dip-coating is heated 20min under 210 ℃ of temperature, is 140～160 μ m through adjustment voltage control coat-thickness.Technical process: copper aluminium mixing material ground net → oil removing → washing → pickling → washing → phytate processing → electrostatic fluidized bed dip-coating → heating → cooling → product; Ground net preparation and surface treatment are with embodiment 1.
Claims (2)
1. a metal ground net is used corrosion-resistant conductive coating; Form by epoxy resin, sheet electrically conductive graphite, softening agent and additive, it is characterized in that the mass percent of each component is: epoxy resin 55～65%, sheet electrically conductive graphite 25～35%; Softening agent 5～10%, additive 3～5%; Epoxy resin is at least a among E8, E10, E12, E14 and the E20; Softening agent is at least a in SE, Vestolen PP 7052, Vilaterm and the polyvinyl butyral acetal; Additive is made up of certain herbaceous plants with big flowers diacid two hydrazides and Dyhard RU 100, and the mass ratio of certain herbaceous plants with big flowers diacid two hydrazides and Dyhard RU 100 is 1:4; Said metal ground net uses corrosion-resistant conductive coating to be powder coating or solvent based coating: with each component crushing screening to 100～200 orders, take by weighing various components in proportion, evenly obtain powder coating with ball mill grinding; Each component is dissolved in proportion obtains solvent based coating in the organic solvent, solvent is made up of isopyknic acetone, ETHYLE ACETATE, butylacetate, ethanol and hexanaphthene, and control solid content volume(tric)fraction is 40～60%.
2. a kind of metal ground net according to claim 1 is characterized in that may further comprise the steps with the method for use of corrosion-resistant conductive coating:
(1) ground net preparation: blanking is welded into metal ground net, removes welding slag, burr and corner angle are carried out chamfered;
(2) surface treatment: oil removing, rust cleaning and phytate are handled, and make the surface form one deck phytate conversion film;
(3) coating applies: powder coating adopts electrostatic spraying, fluidized bed dipping or electrostatic fluidized bed dip-coating method to apply; Solvent based coating adopts brushing, compressed air spraying, no air high pressure painting or dip-coating method to apply, and improves coat-thickness through repeatedly applying;
(4) paint solidification: heating makes paint solidification form coating, and coat-thickness is 50～250 μ m, and heating condition is 150-250 ℃, and be 15～30min heat-up time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110164247A CN102229778B (en) | 2011-06-17 | 2011-06-17 | Anticorrosion conductive coating for metal grounding network and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110164247A CN102229778B (en) | 2011-06-17 | 2011-06-17 | Anticorrosion conductive coating for metal grounding network and application method thereof |
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| CN102229778A CN102229778A (en) | 2011-11-02 |
| CN102229778B true CN102229778B (en) | 2012-10-10 |
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Families Citing this family (10)
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| MY185759A (en) * | 2012-06-13 | 2021-06-04 | Valspar Sourcing Inc | Low application temperature powder coating |
| CN102723620B (en) * | 2012-06-20 | 2015-03-25 | 青岛辉安工程控制有限公司 | Composite anticorrosion grounding device and preparation method thereof |
| CN103214909B (en) * | 2013-03-22 | 2016-01-27 | 西安理工大学 | Grounding net of transformer substation special anti-corrosion electrically conducting coating and spraying method thereof |
| CN103232793B (en) * | 2013-03-29 | 2016-04-06 | 王德全 | A kind of polyvinyl chloride (PVC) RESINS protective system and preparation method thereof |
| CN103785594B (en) * | 2014-01-27 | 2017-01-04 | 中原工学院 | Method for preparing double-sided flexible copper foil by electrostatically coating polymer composite PTC powder |
| CN104014469B (en) * | 2014-05-22 | 2016-07-13 | 国家电网公司 | A kind of sub-anticorrosion treatment technology of substation grounding copper pigtail |
| CN104312385B (en) * | 2014-11-21 | 2016-09-28 | 孟鋆辉 | A kind of corrosion-proof epoxy powder liquid coating and preparation method thereof |
| CN105986212A (en) * | 2015-02-11 | 2016-10-05 | 国家电网公司 | Protective method for grounding grid |
| CN105118562A (en) * | 2015-07-09 | 2015-12-02 | 国家电网公司 | Anticorrosion bus and manufacturing method thereof |
| CN109796846A (en) * | 2019-01-22 | 2019-05-24 | 信和新材料股份有限公司 | A kind of high conductivity based on conducing composite material can weld shop primer and preparation method thereof |
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| CN1283660A (en) * | 2000-08-28 | 2001-02-14 | 谢晓湛 | High-strength anticorrosion antiwear powder paint and its coating technology |
| CN101892003A (en) * | 2010-07-06 | 2010-11-24 | 国网电力科学研究院武汉南瑞有限责任公司 | Nano conductive anti-corrosive paint for earth screen |
| CN101955715A (en) * | 2009-07-13 | 2011-01-26 | 新昌县华田防雷器材有限公司 | Nano anti-corrosion conductive coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976419A (en) * | 1998-06-09 | 1999-11-02 | Geotech Chemical Company | Method for applying a coating that acts as an electrolytic barrier and a cathodic corrosion prevention system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283660A (en) * | 2000-08-28 | 2001-02-14 | 谢晓湛 | High-strength anticorrosion antiwear powder paint and its coating technology |
| CN101955715A (en) * | 2009-07-13 | 2011-01-26 | 新昌县华田防雷器材有限公司 | Nano anti-corrosion conductive coating |
| CN101892003A (en) * | 2010-07-06 | 2010-11-24 | 国网电力科学研究院武汉南瑞有限责任公司 | Nano conductive anti-corrosive paint for earth screen |
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Inventor after: Xu Zijun Inventor after: Zhang Zhenli Inventor after: Niu Bingzhen Inventor after: Zhang Weijia Inventor before: Guan Congsheng Inventor before: Jin Liyong |
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Free format text: CORRECT: ADDRESS; FROM: 250061 JINAN, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING Free format text: CORRECT: INVENTOR; FROM: GUAN CONGSHENG JIN LIYONG TO: XU ZIJUN ZHANG ZHENLI NIU BINGZHEN ZHANG WEIJIA |
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Effective date of registration: 20141126 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Shandong University Patentee after: Zibo Power Supply Company of State Grid Shandong Province Electric Power Company Address before: 250061 Ji'nan Province, Lixia District, Shandong by Road No. ten, No. 17923 Patentee before: Shandong University |
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Granted publication date: 20121010 Termination date: 20210617 |
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