CN107768024B - Anti-oxidation device for aluminum alloy wire - Google Patents

Anti-oxidation device for aluminum alloy wire Download PDF

Info

Publication number
CN107768024B
CN107768024B CN201711044891.0A CN201711044891A CN107768024B CN 107768024 B CN107768024 B CN 107768024B CN 201711044891 A CN201711044891 A CN 201711044891A CN 107768024 B CN107768024 B CN 107768024B
Authority
CN
China
Prior art keywords
oil
wire passing
hose
passing box
sealing cover
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
Application number
CN201711044891.0A
Other languages
Chinese (zh)
Other versions
CN107768024A (en
Inventor
杨宏旭
方荣
郑小伟
杨鑫
于阳
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.)
Jiangsu Hengtong Electric Power Special Wire Co Ltd
Original Assignee
Jiangsu Hengtong Electric Power Special Wire Co Ltd
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 Jiangsu Hengtong Electric Power Special Wire Co Ltd filed Critical Jiangsu Hengtong Electric Power Special Wire Co Ltd
Priority to CN201711044891.0A priority Critical patent/CN107768024B/en
Publication of CN107768024A publication Critical patent/CN107768024A/en
Application granted granted Critical
Publication of CN107768024B publication Critical patent/CN107768024B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse 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

Abstract

The invention discloses an anti-oxidation device for an aluminum alloy wire, which comprises a bottom plate, a wire passing box, an oil tank, a high-pressure gasification device and a plurality of nozzles, wherein the oil tank is connected with the high-pressure gasification device through a hose, the high-pressure gasification device is respectively connected with the plurality of nozzles through the hose, the plurality of nozzles are arranged on the wire passing box, one end of a piston rod is embedded into a cylinder body of the cylinder and performs reciprocating motion to compress air for accessing the compressed air, an oil supply part is connected with the hose, a pneumatic switch part consists of a small cylinder, a valve core and a sealing cavity, the upper end of a spray core is embedded into the lower surface of a joint, a sealing cover is arranged above the wire passing box, one side of the sealing cover is hinged with the wire passing box, a plurality of mounting holes corresponding to the nozzles are formed in the sealing cover, and the lower ends of the plurality of nozzles are respectively embedded into the mounting holes and are fixedly connected with the sealing cover. According to the invention, through the arrangement of the oil filter, impurities and aluminum powder in the anti-oxidation oil can be removed, the spraying quality is ensured, and the blocking rate of aluminum powder accumulation on a nozzle is avoided.

Description

Anti-oxidation device for aluminum alloy wire
Technical Field
The invention relates to an anti-oxidation device, in particular to an anti-oxidation device for an aluminum alloy wire.
Background
The aluminum alloy material is gradually applied to various fields, and the market share of the aluminum alloy conductor wire is gradually increased in recent years due to the fact that Chinese aluminum resources are abundant in mineral products. Meanwhile, the copper conductor industry develops foundation bedding for many years, the domestic large-section overhead conductor production and manufacturing technology gradually tends to be perfect, and the product export of the domestic multi-household-appliance power plate cable industry is a trend in the international market. In particular, the aluminum alloy wire conductor share in southeast asia is increasing year by year. However, the product is subject to the problem that the bare aluminum product is easy to oxidize and blacken, and particularly the quality and the quality of the product of the export aluminum alloy conductor are greatly influenced by seawater salt in the long-distance marine transportation process, so that large-area corrosion occurs, and meanwhile, the usability is influenced by the oxidation and blushing of the surface of the conductor, so that great difficulty is brought to the quality stability of the product. Market research and multiple attempts are made to solve the problem that an oxidation preventing device for aluminum alloy wires needs to be solved to change the existing condition before the wires are wound.
Disclosure of Invention
The invention aims to provide an anti-oxidation device for an aluminum alloy wire, which effectively solves the problem that an outlet aluminum alloy wire is oxidized in long-distance marine transportation, ensures the quality of product quality, reduces the labor intensity of staff, improves the efficiency of equipment, and provides a novel, safe, more excellent-performance and obvious-economic-benefit solution for production, technology and quality departments.
In order to achieve the above purpose, the invention adopts the following technical scheme: the anti-oxidation device for the aluminum alloy wires comprises a bottom plate, a wire passing box, an oil tank, a high-pressure gasification device and a plurality of nozzles, wherein the wire passing box is fixedly arranged on the upper surface of the bottom plate through a plurality of supports, the oil tank is movably arranged right below the wire passing box, the oil tank is connected with the high-pressure gasification device through a hose, the high-pressure gasification device is respectively connected with the plurality of nozzles through the hose, and the plurality of nozzles are arranged on the wire passing box;
the high-pressure gasification device is formed by connecting and combining a cylinder body, a piston rod, an oil cavity, an oil filter and a water filter, wherein one end of the piston rod is embedded into the cylinder body and reciprocates to compress air, one end of the oil cavity is connected with the piston rod, the other end of the oil cavity is connected with the oil filter, the water filter is connected with the side surface of the oil cavity, the oil filter is connected with an oil tank through a hose, and the water filter is connected with the nozzle through a hose;
the nozzle further comprises a pneumatic switch part, an oil supply part and a nozzle part, wherein the pneumatic switch part is connected with the oil supply part and used for controlling the on-off of an oil way of the oil supply part, the oil supply part and the nozzle part are connected through a screw thread joint, the side surface of the pneumatic switch part is connected with an air pipe and used for accessing compressed air, the oil supply part is connected with a hose, the pneumatic switch part consists of a small cylinder, a valve core and a sealing cavity, the upper part of the valve core is connected with a piston rod of the small cylinder, the lower part of the valve core is arranged in the sealing cavity, the nozzle part consists of a joint, a switch knob and a nozzle core, the joint is connected with the oil supply part, one end of the switch knob is embedded into the joint from the side surface, and the upper end of the nozzle core is embedded into the lower surface of the joint;
the wire passing box is characterized in that a sealing cover is arranged above the wire passing box, one side of the sealing cover is connected with the wire passing box in a hinged mode, a plurality of mounting holes corresponding to the nozzles are formed in the sealing cover, and the lower ends of the nozzles are respectively embedded into the mounting holes and are fixedly connected with the sealing cover.
The further improved scheme in the technical scheme is as follows:
1. in the scheme, the wire passing box and the sealing cover are made of stainless steel.
2. In the scheme, the wire passing box is formed by welding a stainless steel plate through post argon arc welding.
3. In the scheme, 2 handles are arranged on the upper surface of the sealing cover.
4. In the above scheme, the oil supply part is provided with 2 oil inlets, and the 2 oil inlets are respectively connected with the hose by adopting external screw thread connection and internal screw thread connection.
5. In the scheme, the oil filter is connected with the hose through threads.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the oil tank of the oxidation preventing device for the aluminum alloy wire is connected with the high-pressure gasification device through a hose, the high-pressure gasification device is respectively connected with a plurality of nozzles through the hose, the nozzles are arranged on the wire passing box, and the high-pressure gasification device and the nozzles are arranged, so that the nozzles change liquid oxidation preventing oil into thick fog through high pressure, spray the oxidation preventing oil in an atomization mode and uniformly suspend and fill the wire passing box, and a uniform oxidation preventing layer is formed on the surface of the wire passing through the wire passing box.
2. The invention relates to an anti-oxidation device for an aluminum alloy wire, which is formed by connecting and combining a cylinder body, a piston rod, an oil cavity, an oil filter and a water filter, wherein one end of the piston rod is embedded into the cylinder body and carries out reciprocating motion to compress air; the water filter is arranged, so that water vapor in the compressed air can be discharged out of the system, and adverse effects of the water vapor on the quality of the lead and the spraying quality are avoided.
3. The anti-oxidation device for the aluminum alloy wires is characterized in that the upper part of the wire passing box is provided with the sealing cover, one side of the sealing cover is hinged with the wire passing box, the upper surface of the sealing cover is provided with 2 handles, the sealing cover ensures the tightness of the wire passing box, ensures that oil mist is not volatilized outwards in the wire passing box, and ensures the safety of operators and the protection of the environment; the hinged connection and the handle are adopted, so that the sealing cover is convenient to open and close, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic diagram of an oxidation preventing device for an aluminum alloy wire;
FIG. 2 is a schematic view of a partial structure of an oxidation preventing device for aluminum alloy wires according to the present invention;
FIG. 3 is a schematic view of the nozzle structure of the oxidation preventing device for aluminum alloy wires according to the present invention;
fig. 4 is a top view of the oxidation preventing device for aluminum alloy wires according to the present invention.
In the above figures: 1. a bottom plate; 2. a wire passing box; 3. an oil tank; 4. a high pressure gasification device; 5. a nozzle; 6. a support; 7. a hose; 8. sealing cover; 16. a cylinder block; 17. a piston rod; 18. an oil chamber; 19. an oil filter; 20. a water filter; 21. a pneumatic switch section; 22. an oil supply part; 23. a nozzle part; 24. a screw thread joint; 25. a small cylinder; 26. a valve core; 27. sealing the cavity; 28. a joint; 29. a switch knob; 30. and (5) spraying cores.
Detailed Description
Example 1: the utility model provides an anti-oxidation device for aluminum alloy wire, includes bottom plate 1, crosses line case 2, oil tank 3, high-pressure gasification equipment 4 and a plurality of nozzle 5, cross line case 2 through a plurality of support 6 fixed mounting in bottom plate 1 upper surface, oil tank 3 movably sets up under crossing line case 2, oil tank 3 is connected with high-pressure gasification equipment 4 through a hose 7, high-pressure gasification equipment 4 is connected with a plurality of nozzle 5 respectively through hose 7, a plurality of nozzle 5 are installed on crossing line case 2;
the high-pressure gasification device 4 is formed by connecting and combining a cylinder body 16, a piston rod 17, an oil cavity 18, an oil filter 19 and a water filter 20, wherein one end of the piston rod 17 is embedded into the cylinder body 16 and carries out reciprocating motion to compress air, one end of the oil cavity 18 is connected with the piston rod 17, the other end of the oil cavity 18 is connected with the oil filter 19, the water filter 20 is connected with the side surface of the oil cavity 18, the oil filter 19 is connected with the oil tank 3 through the hose 7, and the water filter 20 is connected with the nozzle 5 through the hose 7;
the nozzle 5 further comprises a pneumatic switch part 21, an oil supply part 22 and a nozzle part 23, wherein the pneumatic switch part 21 is connected with the oil supply part 22 and is used for controlling the on-off of an oil way of the oil supply part 22, the oil supply part 22 and the nozzle part 23 are connected through a screw joint 24, the side surface of the pneumatic switch part 21 is connected with an air pipe and is used for accessing compressed air, the oil supply part 22 is connected with the hose 7, the pneumatic switch part 21 is composed of a small cylinder 25, a valve core 26 and a sealing cavity 27, the upper part of the valve core 26 is connected with a piston rod of the small cylinder 25, the lower part of the valve core 26 is arranged in the sealing cavity 27, the nozzle part 23 is composed of a joint 28, a switch knob 29 and a nozzle core 30, the joint 28 is connected with the oil supply part 22, one end of the switch knob 29 is embedded into the joint 28 from the side, and the upper end of the nozzle core 30 is embedded into the lower surface of the joint 28.
The wire passing box 2 is provided with a sealing cover 8 above, one side of the sealing cover 8 is hinged with the wire passing box 2, the sealing cover 8 is provided with a plurality of mounting holes corresponding to the nozzles 5, and the lower ends of the nozzles 5 are respectively embedded into the mounting holes and fixedly connected with the sealing cover 8.
The wire passing box 2 and the sealing cover 8 are made of stainless steel; the wire passing box 2 is formed by welding a stainless steel plate through rear argon arc welding; the upper surface of the sealing cover 8 is provided with 2 handles.
Example 2: the utility model provides an anti-oxidation device for aluminum alloy wire, includes bottom plate 1, crosses line case 2, oil tank 3, high-pressure gasification equipment 4 and a plurality of nozzle 5, cross line case 2 through a plurality of support 6 fixed mounting in bottom plate 1 upper surface, oil tank 3 movably sets up under crossing line case 2, oil tank 3 is connected with high-pressure gasification equipment 4 through a hose 7, high-pressure gasification equipment 4 is connected with a plurality of nozzle 5 respectively through hose 7, a plurality of nozzle 5 are installed on crossing line case 2;
the high-pressure gasification device 4 is formed by connecting and combining a cylinder body 16, a piston rod 17, an oil cavity 18, an oil filter 19 and a water filter 20, wherein one end of the piston rod 17 is embedded into the cylinder body 16 and carries out reciprocating motion to compress air, one end of the oil cavity 18 is connected with the piston rod 17, the other end of the oil cavity 18 is connected with the oil filter 19, the water filter 20 is connected with the side surface of the oil cavity 18, the oil filter 19 is connected with the oil tank 3 through the hose 7, and the water filter 20 is connected with the nozzle 5 through the hose 7;
the nozzle 5 further comprises a pneumatic switch part 21, an oil supply part 22 and a nozzle part 23, wherein the pneumatic switch part 21 is connected with the oil supply part 22 and is used for controlling the on-off of an oil way of the oil supply part 22, the oil supply part 22 and the nozzle part 23 are connected through a screw joint 24, the side surface of the pneumatic switch part 21 is connected with an air pipe and is used for accessing compressed air, the oil supply part 22 is connected with the hose 7, the pneumatic switch part 21 is composed of a small cylinder 25, a valve core 26 and a sealing cavity 27, the upper part of the valve core 26 is connected with a piston rod of the small cylinder 25, the lower part of the valve core 26 is arranged in the sealing cavity 27, the nozzle part 23 is composed of a joint 28, a switch knob 29 and a nozzle core 30, the joint 28 is connected with the oil supply part 22, one end of the switch knob 29 is embedded into the joint 28 from the side, and the upper end of the nozzle core 30 is embedded into the lower surface of the joint 28.
The wire passing box 2 is provided with a sealing cover 8 above, one side of the sealing cover 8 is hinged with the wire passing box 2, the sealing cover 8 is provided with a plurality of mounting holes corresponding to the nozzles 5, and the lower ends of the nozzles 5 are respectively embedded into the mounting holes and fixedly connected with the sealing cover 8.
The oil supply part 22 is provided with 2 oil inlets, and the 2 oil inlets are respectively connected with the hose 7 by adopting an outer screw thread connection and an inner screw thread connection; the oil filter 19 is screwed to the hose 7.
When the anti-oxidation device for the aluminum alloy wire is adopted, the high-pressure gasification device and the nozzle are arranged, so that the nozzle changes liquid anti-oxidation oil into thick fog through high pressure, and the anti-oxidation oil is sprayed out in an atomized form and uniformly suspended in and fills the wire passing box, thereby forming a uniform anti-oxidation layer on the surface of the wire passing through the wire passing box; secondly, the arrangement of the oil filter can remove impurities and aluminum powder in the oxidation-resistant oil, so that the spraying quality is ensured, and the phenomenon that the aluminum powder is accumulated to block a nozzle is avoided; the water filter is arranged, so that water vapor in the compressed air can be discharged out of the system, and adverse effects of the water vapor on the quality of the wire and the spraying quality are avoided; thirdly, due to the arrangement of the sealing cover, the tightness of the wire passing box is ensured, the oil mist is prevented from volatilizing outwards in the wire passing box, and the safety of operators and the protection of the environment are ensured; the hinged connection and the handle are adopted, so that the sealing cover is convenient to open and close, and the operation is simple and convenient.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (4)

1. An anti-oxidation device for aluminum alloy wire, its characterized in that: the device comprises a bottom plate (1), a wire passing box (2), an oil tank (3), a high-pressure gasification device (4) and a plurality of nozzles (5), wherein the wire passing box (2) is fixedly arranged on the upper surface of the bottom plate (1) through a plurality of supports (6), the oil tank (3) is movably arranged right below the wire passing box (2), the oil tank (3) is connected with the high-pressure gasification device (4) through a hose (7), the high-pressure gasification device (4) is respectively connected with the plurality of nozzles (5) through the hose (7), and the plurality of nozzles (5) are arranged on the wire passing box (2);
the high-pressure gasification device (4) is formed by connecting and combining a cylinder body (16), a piston rod (17), an oil cavity (18), an oil filter (19) and a water filter (20), wherein one end of the piston rod (17) is embedded into the cylinder body (16) and reciprocates to compress air, one end of the oil cavity (18) is connected with the piston rod (17), the other end of the oil cavity (18) is connected with the oil filter (19), the water filter (20) is connected with the side surface of the oil cavity (18), the oil filter (19) is connected with an oil tank (3) through a hose (7), and the water filter (20) is connected with the nozzle (5) through the hose (7);
the nozzle (5) further comprises a pneumatic switch part (21), an oil supply part (22) and a spray head part (23), wherein the pneumatic switch part (21) is connected with the oil supply part (22) and is used for controlling the on-off of an oil way of the oil supply part (22), the oil supply part (22) and the spray head part (23) are connected through a screw joint (24), the side surface of the pneumatic switch part (21) is connected with an air pipe and is used for connecting compressed air, the oil supply part (22) is connected with the hose (7), the pneumatic switch part (21) is composed of a small cylinder (25), a valve core (26) and a sealing cavity (27), the upper part of the valve core (26) is connected with a piston rod of the small cylinder (25), the lower part of the valve core (26) is arranged in the sealing cavity (27), the spray head part (23) is composed of a joint (28), a switch knob (29) and a spray core (30), one end of the switch knob (29) is embedded into the inner side surface of the joint (28), and the lower end of the switch knob (29) is embedded into the upper surface of the spray core (30);
the wire passing box is characterized in that a sealing cover (8) is arranged above the wire passing box (2), one side of the sealing cover (8) is hinged to the wire passing box (2), a plurality of mounting holes corresponding to the nozzles (5) are formed in the sealing cover (8), the lower ends of the nozzles (5) are respectively embedded into the mounting holes and are fixedly connected with the sealing cover (8), the wire passing box (2) and the sealing cover (8) are made of stainless steel, and the wire passing box (2) is formed by welding a stainless steel plate through rear argon arc welding.
2. The oxidation preventing device for aluminum alloy wires according to claim 1, wherein: the upper surface of the sealing cover (8) is provided with 2 handles.
3. The oxidation preventing device for aluminum alloy wires according to claim 1, wherein: the oil supply part (22) is provided with 2 oil inlets, and the 2 oil inlets are respectively connected with the hose (7) by adopting external screw thread connection and internal screw thread connection.
4. The oxidation preventing device for aluminum alloy wires according to claim 1, wherein: the oil filter (19) is connected with the hose (7) through screw threads.
CN201711044891.0A 2017-10-31 2017-10-31 Anti-oxidation device for aluminum alloy wire Active CN107768024B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711044891.0A CN107768024B (en) 2017-10-31 2017-10-31 Anti-oxidation device for aluminum alloy wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711044891.0A CN107768024B (en) 2017-10-31 2017-10-31 Anti-oxidation device for aluminum alloy wire

Publications (2)

Publication Number Publication Date
CN107768024A CN107768024A (en) 2018-03-06
CN107768024B true CN107768024B (en) 2023-06-20

Family

ID=61270344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711044891.0A Active CN107768024B (en) 2017-10-31 2017-10-31 Anti-oxidation device for aluminum alloy wire

Country Status (1)

Country Link
CN (1) CN107768024B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201527848U (en) * 2009-09-24 2010-07-14 安徽瑞隆电工有限公司 Anti-oxidation device for clad-welding of CCA
CN102364604A (en) * 2011-09-07 2012-02-29 无锡市嘉邦电力管道厂 Method for thermally treating aluminum alloy cable
CN203380139U (en) * 2013-08-01 2014-01-08 海瑞恩精密技术(太仓)有限公司 High-pressure flushing device
CN104984847A (en) * 2015-08-08 2015-10-21 登电集团铝加工有限公司 Stretch bender oil mist sprayer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207541999U (en) * 2017-10-31 2018-06-26 江苏亨通电力特种导线有限公司 For the oxidation of aluminium alloy conductor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201527848U (en) * 2009-09-24 2010-07-14 安徽瑞隆电工有限公司 Anti-oxidation device for clad-welding of CCA
CN102364604A (en) * 2011-09-07 2012-02-29 无锡市嘉邦电力管道厂 Method for thermally treating aluminum alloy cable
CN203380139U (en) * 2013-08-01 2014-01-08 海瑞恩精密技术(太仓)有限公司 High-pressure flushing device
CN104984847A (en) * 2015-08-08 2015-10-21 登电集团铝加工有限公司 Stretch bender oil mist sprayer

Also Published As

Publication number Publication date
CN107768024A (en) 2018-03-06

Similar Documents

Publication Publication Date Title
CN206262501U (en) A kind of autoclave cleaning device
CN107768024B (en) Anti-oxidation device for aluminum alloy wire
CN107731424B (en) Surface treatment equipment for electric power wire
CN207541999U (en) For the oxidation of aluminium alloy conductor
CN209222855U (en) A kind of precision hardware surplus material recovery device
CN208643094U (en) A kind of production of enamel wire conducting wire spray-painting plant
CN207521195U (en) A kind of processing cooling spraying device
CN207533444U (en) For the anti-oxidation coating unit of aluminium alloy rod production
CN207533463U (en) It is anti-oxidation to use alloy lead wire spray equipment
CN206253260U (en) The intelligent spray equipment of sheet metal
CN208810382U (en) A kind of fabric fire retardant spray equipment
CN208679518U (en) A kind of epoxy coating antidrip spray equipment
CN205701204U (en) A kind of landscape pond anticorrosive wood Os Draconis automatic painting device
CN209146361U (en) A kind of valve body for preventing from getting rusty
CN202169032U (en) Vortex type water mist jet head
CN207887380U (en) A kind of anti-clogging spray head
CN205324034U (en) High voltage live 110kV, 220kV, antifouling sudden strain of a muscle isolated plant of 500kV
CN207325105U (en) A kind of water-saving atomizer
CN203380065U (en) Lifting device for spray-coating procedure of heating plate group
CN211964627U (en) Arc-shaped spray head for spraying oxygen-free copper bar
CN205797558U (en) A kind of spray-painting plant for nut
CN208279701U (en) A kind of diamond wire production line electroplating tank structure
CN215683969U (en) Pressurized sprayer structure
CN209219721U (en) A kind of sprayable bar shelf
CN204337589U (en) Peripheral jet formula dry powder extinguishing installation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant