CN201304391Y - Spraying equipment for corrosion protection of inside and outside of steel pipe - Google Patents
Spraying equipment for corrosion protection of inside and outside of steel pipe Download PDFInfo
- Publication number
- CN201304391Y CN201304391Y CNU2008201677832U CN200820167783U CN201304391Y CN 201304391 Y CN201304391 Y CN 201304391Y CN U2008201677832 U CNU2008201677832 U CN U2008201677832U CN 200820167783 U CN200820167783 U CN 200820167783U CN 201304391 Y CN201304391 Y CN 201304391Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to equipment which sprays the inner wall of a steel pipe for corrosion protection, in particular to spraying equipment used for protecting the inner wall of the steel pipe against corrosion. The spraying equipment comprises a steel pipe inner spray carriage (1) with a powder box (17), a spray gun (23), a transfer device (3) used for relocating the steel pipe, a heating device (2) and a powder recoverer, wherein, a circulating cooling water system is arranged in a barrel (18) of the spray gun, the transfer device (3) for the relocation of the steel pipe is arranged below the barrel (18), the heating device (2) is arranged behind a nozzle (13), and the powder recoverer is arranged at the front end of the nozzle (13). The spraying equipment used for corrosion protection of the inner wall of the steel pipe can not only utilize the spray gun for fully automatic anti-corrosion spray on the inner wall of a steel pipe with large diameter and length, but also be used in the manufacture of large steel pipes with sprayed inner walls. Meanwhile, the spraying equipment has the advantages of convenient operation and high security.
Description
Technical field
The utility model relates to and a kind of steel pipe is carried out equipment spraying inside and outside, relates in particular to a kind of large-scale steel pipe to be carried out equipment spraying inside and outside.
Background technology
Large-scale steel pipe plays important effect in pipeline is carried, but the etching problem of steel pipe affects the service life of steel pipe always.At present steel pipe is carried out general employing of internal and external anti-corrosive and soak the technology of moulding, the steel pipe that will need exactly to apply enters baking oven and carries out preheating, then the steel pipe after the preheating is sling rapidly by level, insert fast in the deep-wall type fluid bed, make the sticking steel tube surface of applying after heating of powder, then again with the quick pull-up of steel pipe, and make steel pipe horizontal positioned once more, enter the powder curing baking oven, make powder curing after, the following part of cooling again.Employing soaks to mould needs to dig deep-well in the factory building, the top of factory building also will install additional and promote driving, need carry out special transformation to factory building, be restricted also many, therefore processing diameter of steel tube≤φ 300mm usually, the length≤6m of steel pipe.Soak and mould technology a link is arranged is that horizontal steel tube is converted to vertically, convert vertical steel pipe to level again after having soaked, the operation that this process need is artificial because the steel pipe temperature is very high, is easy to generate security incident.
Summary of the invention
The purpose of this utility model is in order to solve the defective that existing internal and external anti-corrosive steel tube production exists, a kind of full automatic working to be provided, can producing the spraying equipment of large-scale internal and external anti-corrosive steel tube.
In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of spraying equipment of internal and external anti-corrosive steel tube, the conveyer that it is characterized in that comprising pipe inner-wall spraying mechanism, outer wall of steel pipe spray body and steel pipe is transferred to the outer wall of steel pipe spray body from pipe inner-wall spraying mechanism;
Pipe inner-wall spraying mechanism comprises the interior spray of the steel pipe dolly of band powder case, interior spray gun, the transmitting device that is used for mobile steel pipe, heater, Powder Recovery device; Interior spray gun is made of the barral of a gun of shower nozzle and horizontally set, and shower nozzle is arranged on the front end of barral of a gun, and the rear end of barral of a gun connects spray dolly in the steel pipe; The transmitting device that is used for mobile steel pipe is arranged on the barral of a gun below, and heater is arranged on the rear of shower nozzle, and the position of Powder Recovery device is corresponding with nozzle position;
The outer wall of steel pipe spray body comprises transmitting device that is used for mobile steel pipe and the heater that is arranged in order, is with the outer spray apparatus of steel pipe, extruding machine and the water cooling plant of Powder Recovery device.
As preferably, also be provided with lifting platform, the fixedly connected lifting platform in the rear end of barral of a gun on the spray dolly in the steel pipe.The height of spray gun is to adapt to the processing of different-diameter steel pipe in being convenient to adjust.
As preferably, be provided with recirculating cooling water system in the barral of a gun, recirculating cooling water system comprises temperature drop pipe and backwater outlet, the delivery port of described temperature drop pipe is arranged on the front end of barral of a gun.Steel pipe is very high by temperature in the heater heating steel pipe, and this recirculating cooling water system plays the effect of water-cooled, effectively reduces the temperature of barral of a gun, has guaranteed that interior spray gun can spraying normally in steel pipe.
As preferably, the Powder Recovery device is made of fixedly recover and mobile recover, and shower nozzle is arranged on fixedly in the recover during initial position; Move recover during inner-wall spraying and be arranged on the steel pipe leading section outside of shower nozzle front end, fixedly recover and mobile recover can reclaim the powder that is not sprayed on the steel pipe, not only guaranteed the powder that evenly but also timely reclaimed spray of pipe inner-wall spraying, recycled.
As preferably, the transmitting device of mobile steel pipe is many conveyers, and adopts spiral transmission to move, and interior spray gun maintains static, the steel pipe spiral advance guaranteed spraying evenly.
As preferably, be enclosed with rubber sleeve on the roller of conveyer, and be the high-temperature resistant rubber cover near the rubber sleeve on the conveyer of heater, be the rub resistance rubber sleeve away from the rubber sleeve on the conveyer of heater.The high-temperature resistant rubber cover can prevent that rubber sleeve from because of the steel pipe of contact high temperature damages, specifically being that rubber sleeve high temperature dissolves and sticks to the anticorrosive quality that steel pipe influences steel pipe, and the rub resistance rubber sleeve can effectively prolong the service life of rubber sleeve.
As preferably, spray gun is provided with support wheel in the pipe that highly can regulate, and the outer end of support wheel is used to connect the steel pipe inwall in the pipe, and support wheel is used to support spray gun in the pipe.
As preferably, the heater in interior spray and the external spraying machine structure all is to adopt intermediate frequency heater, and the temperature of the heater during use in the internal spraying machine structure is higher than the heater in the external spraying machine structure, and the powder bed that has formed when having guaranteed interior spray is not subjected to the influence of outer spray heating.
As preferably, be liquid pressure transducer with steel pipe from the conveyer that pipe inner-wall spraying mechanism transfers to the outer wall of steel pipe spray body, easy to use.
As preferably, pipe inner-wall spraying mechanism also comprises the spray gun bracket system, and the spray gun bracket system is made of spray gun carriage dolly and support bar, the same moved further of spray gun carriage dolly and steel pipe; The support bar bottom is fixed on the spray gun carriage dolly, and the top connects barral of a gun, support bar next-door neighbour steel pipe afterbody, and the effect of spray gun bracket system is to be that barral of a gun provides support when support wheel and steel pipe in the pipe of interior spray gun break away from.
Because adopted the spraying equipment of a kind of internal and external anti-corrosive steel tube of above-mentioned technical scheme, whole spraying process all is automation mechanized operation, security is good.The use of spraying equipment does not have specific (special) requirements to factory building, and the diameter of steel pipe is with respect to existing can do bigger, and length is also longer, the diameter of general steel pipe can be accomplished φ 76～φ 1200mm, length can be accomplished 3～13.5m, low cost of manufacture, and the working ability of product is strong.In sum, the spraying equipment of this internal and external anti-corrosive steel tube has easy to operate, and is safe, can produce the advantage of large-scale spraying inside and outside steel pipe.
Description of drawings
Fig. 1: example structure schematic diagram of the present utility model.
Fig. 2: open state pipe inner-wall spraying structural scheme of mechanism among the embodiment of the present utility model.
Fig. 3: the generalized section of barral of a gun among the embodiment of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing 1-3 the specific embodiment of the present utility model is made a detailed explanation.
The spraying equipment of a kind of internal and external anti-corrosive steel tube as Figure 1-3 constitutes from the conveyer 6 that pipe inner-wall spraying mechanism transfers to the outer wall of steel pipe spray body by pipe inner-wall spraying mechanism, outer wall of steel pipe spray body with steel pipe 15.
Pipe inner-wall spraying mechanism comprises the interior spray of steel pipe dolly 1, the interior spray gun 23 of band powder case 17, the transmitting device 3 that is used for mobile steel pipe, heater 2, Powder Recovery device and spray gun bracket system 7.Interior spray gun 23 is made of the barral of a gun 18 of shower nozzle 13 and horizontally set, be provided with recirculating cooling water system in the barral of a gun 18, recirculating cooling water system comprises temperature drop pipe 22 and backwater outlet 21, the delivery port 20 of temperature drop pipe 22 is arranged on the front end of barral of a gun 18, the delivery port 20 of temperature drop pipe 22 is three-way pipes, and the inlet of temperature drop pipe 22 and backwater outlet 21 are arranged on the rear end of barral of a gun 18.Shower nozzle 13 is connected the front end of barral of a gun 18, and the rear end of barral of a gun 18 connects spray dolly 1 in the steel pipe, and 1 also is provided with lifting platform 16, the fixedly connected lifting platform 16 in the rear end of barral of a gun 18 on the interior spray of the steel pipe dolly.Spray gun is provided with support wheel 14 in the pipe that highly can regulate, and the outer end of support wheel 14 is used to connect steel pipe 15 inwalls in the pipe.The position of Powder Recovery device is corresponding with shower nozzle 13 positions, the Powder Recovery device is by fixedly recover 4 and mobile recover 5 constitute, shower nozzle 13 is arranged on fixedly recover interior 4 during the start original state, move recover 5 during inner-wall spraying and be arranged on the spray gun 13 front end steel pipes 15 leading sections outside, mobile recover 5 and steel pipe 15 same moved further.The transmitting device 3 that is used for mobile steel pipe is arranged on barral of a gun 18 belows, and heater 2 is arranged on the rear of shower nozzle 13.Spray gun bracket system 7 is made of spray gun carriage dolly 71 and support bar 72, spray gun carriage dolly 71 and steel pipe 15 same moved further.Support bar 72 bottoms are fixed on the spray gun carriage dolly 71, and the top connects barral of a gun 18, support bar 72 next-door neighbour's steel pipes 15 afterbodys.
The outer wall of steel pipe spray body comprises transmitting device 8 that is used for mobile steel pipe and the heater 9 that is arranged in order, is with the outer spray apparatus 10 of steel pipe, extruding machine 11 and the water cooling plant 12 of Powder Recovery device.
Above-mentioned is liquid pressure transducers with steel pipe 15 from the conveyer 6 that pipe inner-wall spraying mechanism transfers to the outer wall of steel pipe spray body.The transmitting device the 3, the 8th of mobile steel pipe, many conveyers, and adopt spiral transmission to move, be enclosed with rubber sleeve 31 on the roller of conveyer, and be the high-temperature resistant rubber cover near the rubber sleeve 31 on the conveyer of heater 2,9, the rubber sleeve 31 on all the other conveyers is a rub resistance rubber sleeve 32.Above-mentioned heater 2,9 all is intermediate frequency heaters, and the temperature of the heater 2 during use in the internal spraying machine structure is higher than the heater 9 in the external spraying machine structure, and the powder bed that has formed when having guaranteed interior the spray is not subjected to the influence of outer spray heating.
The course of work is as follows:
One, behind the steel pipe 15 process sandblast ball blast pretreatment procedures, transfers on the conveyer 3 with driving;
Two, according to the diameter of steel pipe 15, with the height of gun shot in lifting platform 16 adjustment, open the recirculated cooling water in the barral of a gun, next start and spray dolly 1 in the steel pipe, make barral of a gun 18 smoothly by steel pipe 15, interior spray gun meal outlet stops when arriving the position of fixed recover 4 automatically;
Three, open fixed recover 4 successively, interior spray-painting gun, intermediate frequency electric heater unit 2, according to the powder outlet quantity of visual observation adjustment spray gun, it is up to standard detecting steel pipe 15 surface temperatures, is generally 250 ℃.After just continuous, start steel pipe conveyer 3, make steel pipe 15 spiral being fed forward, carry out interior spraying operation, when the meal outlet of interior spray-painting gun enters steel pipe 15 inside, fixedly recover 4 cuts out automatically, open mobile recover 5 simultaneously, the suction powder mouth of mobile recover 5 and the front end of steel pipe 15 keep the distance of 300mm, with steel pipe 15 advanced in unison, with steel pipe 15 synchronous in addition interior spray gun carriage dollies 71 forward, when support wheel in the pipe of interior spray gun 14 breaks away from steel pipe 15, be that barral of a gun 18 provides support.Near the rubber sleeve of the roller outer wrapping of the three groups of conveyers 3,8 intermediate frequency heater 2,9 is that heatproof reaches 280 ℃ high-temperature resistant rubber, and what remaining roller wrapped up is wear-resisting wiping rubber sleeve.Adopt the technology of such thermal spraying, the powder coating thickness can reach 120 μ m～300 μ m.After spraying is finished in the steel pipe 15, spray dolly 1 in the steel pipe, interior spray gun carriage dolly 71, the portable device 5 that reclaims is all got back to initial position, so cycling;
Four, finish the steel pipe 15 of interior spray, steel pipe 15 is transferred on the outer wall of steel pipe spray body by liquid pressure transducer;
Five, the steel pipe spiral is fed forward, open intermediate frequency electric heater 9, adjust steel pipe 15 surface temperatures and reach 200 ℃, intermediate frequency electric heater 2 temperature in the pipe inner-wall spraying mechanism are higher than the intermediate frequency electric heater 9 on the outer wall of steel pipe spray body, and the powder bed that spray is finished in guaranteeing is unaffected;
Six, open outer dusty spray retracting device, electrostatic gun, adjust the powder outlet quantity of electrostatic gun;
Seven, adjust finish after, open conveyer 8, the steel pipe spiral is fed forward, successively pass through intermediate frequency electric heater 9, the static of epoxy powder sprays outward, the PE layer of extruding machine 11 twines and the coating extruding, behind water cooling plant 12 under part.
The foregoing description only is a this patent embodiment preferably, and the structure that all employing the technical program are described, feature and the variation on its spiritual principle, modification all belong to the protection domain of this patent.
Claims (10)
1. the spraying equipment of an internal and external anti-corrosive steel tube, the conveyer (6) that it is characterized in that comprising pipe inner-wall spraying mechanism, outer wall of steel pipe spray body and steel pipe (15) is transferred to the outer wall of steel pipe spray body from pipe inner-wall spraying mechanism;
Pipe inner-wall spraying mechanism comprises the interior spray of steel pipe dolly (1), the interior spray gun (23) of band powder case (17), the transmitting device (3) that is used for mobile steel pipe, heater (2), Powder Recovery device; Interior spray gun (23) is made of the barral of a gun (18) of shower nozzle (13) and horizontally set, and shower nozzle (13) is connected the front end of barral of a gun (18), and the rear end of barral of a gun (18) connects spray dolly (1) in the steel pipe; The transmitting device (3) that is used for mobile steel pipe is arranged on barral of a gun (18) below, and heater (2) is arranged on the rear of shower nozzle (13), and the position of Powder Recovery device is corresponding with shower nozzle (13) position;
The outer wall of steel pipe spray body comprises transmitting device (8) that is used for mobile steel pipe and the heater (9) that is arranged in order, is with the outer spray apparatus (10) of steel pipe, extruding machine (11) and the water cooling plant (12) of Powder Recovery device.
2. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1 is characterized in that (1) also is provided with lifting platform (16), the fixedly connected lifting platform in rear end (16) of barral of a gun (18) on the interior spray of the steel pipe dolly.
3. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1, it is characterized in that being provided with recirculating cooling water system in the barral of a gun (18), recirculating cooling water system comprises temperature drop pipe (22) and backwater outlet (21), and the delivery port (20) of described temperature drop pipe (22) is arranged on the front end of barral of a gun (18).
4. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1 is characterized in that the Powder Recovery device is made of fixedly recover (4) and mobile recover (5), and shower nozzle during initial position (13) is arranged on fixedly recover interior (4); Move steel pipe (15) the leading section outside, mobile recover (5) and the same moved further of steel pipe (15) that recover (5) is arranged on shower nozzle (13) front end during inner-wall spraying.
5. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1 is characterized in that the transmitting device (3,8) of mobile steel pipe is many conveyers, and adopts spiral transmission to move.
6. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 5, it is characterized in that being enclosed with rubber sleeve (31) on the roller of conveyer, and near the rubber sleeve (31) on the conveyer of heater (2,9) is the high-temperature resistant rubber cover, is rub resistance rubber sleeve (32) away from the rubber sleeve (31) on the conveyer of heater (2,9).
7. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1 is characterized in that spray gun is provided with support wheel (14) in the pipe that highly can regulate, and the outer end of support wheel (14) is used to connect steel pipe (15) inwall in the pipe.
8. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1 is characterized in that heater (2,9) all is intermediate frequency heaters.
9. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1 is characterized in that be liquid pressure transducer with steel pipe (15) from the conveyer (6) that pipe inner-wall spraying mechanism transfers to the outer wall of steel pipe spray body.
10. the spraying equipment of a kind of internal and external anti-corrosive steel tube according to claim 1, it is characterized in that pipe inner-wall spraying mechanism also comprises spray gun bracket system (7), spray gun bracket system (7) is made of spray gun carriage dolly (71) and support bar (72), spray gun carriage dolly (71) and the same moved further of steel pipe (15); Support bar (72) bottom is fixed on the spray gun carriage dolly (71), and the top connects barral of a gun (18), support bar (72) next-door neighbour steel pipe (15) afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201677832U CN201304391Y (en) | 2008-11-24 | 2008-11-24 | Spraying equipment for corrosion protection of inside and outside of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201677832U CN201304391Y (en) | 2008-11-24 | 2008-11-24 | Spraying equipment for corrosion protection of inside and outside of steel pipe |
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| Publication Number | Publication Date |
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| CN201304391Y true CN201304391Y (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201677832U Expired - Fee Related CN201304391Y (en) | 2008-11-24 | 2008-11-24 | Spraying equipment for corrosion protection of inside and outside of steel pipe |
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| CN (1) | CN201304391Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198442A (en) * | 2011-05-31 | 2011-09-28 | 胜利油田胜利石油化工建设有限责任公司 | Mechanical bent pipe coating device |
| CN102513253A (en) * | 2011-12-19 | 2012-06-27 | 青岛大仓管道防腐保温器材有限公司 | Epoxy powder coating device for insides and outsides of steel tubes and process method |
| CN102996976A (en) * | 2011-09-08 | 2013-03-27 | 上海图博可特石油管道涂层有限公司 | Device and process for conducting absorbing and applying and prevention corrosion of pipe inner surface for oil exploitation |
| CN103111399A (en) * | 2013-02-17 | 2013-05-22 | 乐山晟嘉电气有限公司 | Automatic control system of horizontal type coated pipeline |
| CN103170445A (en) * | 2013-02-22 | 2013-06-26 | 北钢管业（营口）有限公司 | One-step shaping technology for coating epoxy powder on inner wall and outer wall of steel pipe |
| CN103623978A (en) * | 2013-11-26 | 2014-03-12 | 天津翔盛粉末涂料有限公司 | Special production system for anticorrosion hot roll coating of steel pipe and special roll coating method using special production system |
| CN105935649A (en) * | 2016-06-30 | 2016-09-14 | 苏州市永通不锈钢有限公司 | Film-coating device for inner wall of steel pipe |
| CN108325796A (en) * | 2018-04-17 | 2018-07-27 | 青岛大仓防腐有限公司 | Epoxy powder is without gas applying device and coating method in a kind of steel pipe |
| CN115608531A (en) * | 2022-09-28 | 2023-01-17 | 广东水电二局股份有限公司 | Large-diameter steel pipe melt-blown anti-corrosion spraying equipment |
| CN116833077A (en) * | 2023-07-13 | 2023-10-03 | 天津裕实工程技术有限公司 | Micro-bevel angle spraying method for pipeline coating |
-
2008
- 2008-11-24 CN CNU2008201677832U patent/CN201304391Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198442B (en) * | 2011-05-31 | 2012-09-12 | 胜利油田胜利石油化工建设有限责任公司 | Mechanized bent pipe coating device |
| CN102198442A (en) * | 2011-05-31 | 2011-09-28 | 胜利油田胜利石油化工建设有限责任公司 | Mechanical bent pipe coating device |
| CN102996976A (en) * | 2011-09-08 | 2013-03-27 | 上海图博可特石油管道涂层有限公司 | Device and process for conducting absorbing and applying and prevention corrosion of pipe inner surface for oil exploitation |
| CN102513253A (en) * | 2011-12-19 | 2012-06-27 | 青岛大仓管道防腐保温器材有限公司 | Epoxy powder coating device for insides and outsides of steel tubes and process method |
| CN103111399B (en) * | 2013-02-17 | 2015-11-18 | 乐山晟嘉电气有限公司 | horizontal coating pipeline automatic control system |
| CN103111399A (en) * | 2013-02-17 | 2013-05-22 | 乐山晟嘉电气有限公司 | Automatic control system of horizontal type coated pipeline |
| CN103170445A (en) * | 2013-02-22 | 2013-06-26 | 北钢管业（营口）有限公司 | One-step shaping technology for coating epoxy powder on inner wall and outer wall of steel pipe |
| CN103623978A (en) * | 2013-11-26 | 2014-03-12 | 天津翔盛粉末涂料有限公司 | Special production system for anticorrosion hot roll coating of steel pipe and special roll coating method using special production system |
| CN103623978B (en) * | 2013-11-26 | 2016-02-10 | 天津翔盛粉末涂料有限公司 | The special production system of the hot roller coating of a kind of steel pipe corrosion-proof and utilize the special rolling process of this special production system |
| CN105935649A (en) * | 2016-06-30 | 2016-09-14 | 苏州市永通不锈钢有限公司 | Film-coating device for inner wall of steel pipe |
| CN108325796A (en) * | 2018-04-17 | 2018-07-27 | 青岛大仓防腐有限公司 | Epoxy powder is without gas applying device and coating method in a kind of steel pipe |
| CN115608531A (en) * | 2022-09-28 | 2023-01-17 | 广东水电二局股份有限公司 | Large-diameter steel pipe melt-blown anti-corrosion spraying equipment |
| CN115608531B (en) * | 2022-09-28 | 2023-10-13 | 广东水电二局股份有限公司 | Anticorrosion spraying equipment is melt-blown to major diameter steel pipe |
| CN116833077A (en) * | 2023-07-13 | 2023-10-03 | 天津裕实工程技术有限公司 | Micro-bevel angle spraying method for pipeline coating |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANHUA CHEMICAL MACHINERY + AUTOMATION RESEARCH I Free format text: FORMER OWNER: ZHEJIANG HUALI COATING EQUIPMENT CO., LTD. Effective date: 20101122 Owner name: ZHEJIANG HUALI COATING EQUIPMENT CO., LTD. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qiao Junping Inventor after: He Jilong Inventor after: Lv Jianli Inventor after: Jin Yueqiang Inventor after: Zhang Yonghong Inventor after: Han Yong Inventor after: Jia Hongqing Inventor before: Lv Jianli Inventor before: Jin Yueqiang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LV JIANLI JIN YUEQIANG TO: QIAO JUNPING HE JILONG LV JIANLI JIN YUEQIANG ZHANG YONGHONG HAN YONG JIA HONGQING Free format text: CORRECT: ADDRESS; FROM: 313200 NO. 596, YUNXIU NORTH ROAD, WUKANG TOWN, DEQING COUNTY, ZHEJIANG PROVINCE TO: 730060 NO. 3, HESHUI NORTH ROAD, XIGU DISTRICT, LANZHOU CITY, GANSU PROVINCE |
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Effective date of registration: 20101122 Address after: 730060 Gansu city of Lanzhou province Xigu District Heshui Road No. 3 Co-patentee after: Zhejiang Huali Coating Equipment Co., Ltd. Patentee after: Tianhua Chemical Machinery & Automation Research Inst. Address before: 313200 Zhejiang province Deqing County Wukang Unshu Road No. 596 Patentee before: Zhejiang Huali Coating Equipment Co., Ltd. |
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