CN107935504A - Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function - Google Patents
Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function Download PDFInfo
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- CN107935504A CN107935504A CN201711205361.XA CN201711205361A CN107935504A CN 107935504 A CN107935504 A CN 107935504A CN 201711205361 A CN201711205361 A CN 201711205361A CN 107935504 A CN107935504 A CN 107935504A
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- parts
- grouting material
- strengthening
- microdilatancy
- dry powder
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses early strengthening and high strengthening, microdilatancy, since conservation function bar connecting sleeve grouting material, be related to concrete, technical field, it includes mass ratio for 100:8~16 grouting material dry powder and water, wherein grouting material dry powder are made of the raw material of following parts by weight：50~60 parts of cement admixture, 40~50 parts of fine aggregate, 5~10 parts of rheological agent, fast 10~20 parts of type swelling agent, 0.5~3 part of polyoxypropylene ethylene oxide glycerin ether, 0.5~5 part of curing agent of self-control, 0.1~1 part of rubber powder；The sleeve grouting material has the characteristics that early strengthening and high strengthening, high cohesive force, microdilatancy, is filled into reinforced bar sleeve, can make to form firm connection between reinforcing bar and reinforcing bar, reinforcing bar and sleeve, and have good durability.
Description
Technical field
The present invention relates to technical field of concrete preparation, more particularly to early strengthening and high strengthening, microdilatancy, the reinforcing bar of since conservation function
Sleeve for connection grouting material.
Background technology
In recent years, prefabricated concrete structure (abbreviation PC structures) has had certain development in China, PC structures
Most of component is all prefabricated in the factory, and is assembled in engineering site, compared to cast-in-place concrete structure, is improving the same of construction quality
When, resource, the energy can be saved, pollution and carbon emission is reduced, site operation personnel etc. can also be reduced, is built in future city
There is vast potential for future development in field.
Precast concrete is dedicated cement-based grouting material to be poured into the steel bushing for being inserted with reinforcing bar when mounted
In, reinforcing bar and sleeve are securely attached together after cement mortar hardening, achieve the purpose that to connect reinforcing bar, therefore bar connecting
Must have higher intensity, good workability and longer operable time and good expansion with sleeve grouting material
Performance.
Chinese patent CN106007574A discloses a kind of double expansion perfusion mortars of plasticity, includes the original of following parts by weight
Material:35-60 parts of aggregate, 40-50 parts of 52.5 portland cement, 5-8 parts of composite expanding agent, 1-3 parts of redispersable latex powder, diminishing
0.2-0.8 parts of agent, 0.03-0.08 parts of plastic expansion agent, 0.02-0.05 parts of retarder, 0.1-0.4 parts of cellulose ether, defoamer
0.02-0.05 parts, 0.05-0.2 parts of super lubricant, but its expansion character is general, later stage cracking resistance is poor, while after needs
Phase conserves.CN104030644B discloses a kind of polymer cement mortar for high-speed railway plate type ballastless track filling layer,
It is made of siccative and liquid material two parts, siccative is made of the raw material of following weight fraction：100 parts of cement components, elasticity are adjusted
Whole group divide 1-15 parts, 5-20 parts of expansion component, it is interior maintenance 0.01-0.5 part of component, 80-130 parts of aggregate component, condensation adjusting group
Divide 0.01-2 parts, liquid material is made of the raw material of following weight fraction：100 parts of polymer emulsion, 0.5-2 parts of water-reducing agent, defoamer
0.1-1 parts, 0.01-0.5 parts of air entraining agent, 100-200 parts of water, but the self-control curing agent of the patent in use can be too early
Substantial amounts of moisture is discharged, causes the maintenance effect unobvious of later concrete.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming the above prior art：There is provided a kind of with early strong high
The bar connecting of intensity, microdilatancy rate and good mobility sleeve grouting material.
The technical solution of the present invention is as follows：
Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function, including grouting material dry powder and water,
Wherein grouting material dry powder is made of the raw material of following parts by weight：
The mass ratio of the grouting material dry powder and water is 100:8~16；
The cement admixture is 4 by mass ratio:1~2 P.O52.5 cement and clinker is combined.
Preferably, the grouting material dry powder is made of the raw material of following parts by weight：
The mass ratio of the dry powder grouting material and water is 100:10~14.
Preferably, mixing of the fine aggregate for 20~60 mesh quartz sands and 60~120 mesh quartz sands, the two weight
Mixed proportion is 1~3:1.
Preferably, the rheological agent is prepared by each component of following parts by weight, methyl alkenyl polyoxyethylene ether 30-
40 parts, self-control 10-20 parts of auxiliary agent, 10-20 parts of methacrylic acid, 1-5 parts of thioacetic acid, 1-5 parts of piece alkali, 40-60 parts of water；It is described
Self-control auxiliary agent be made of the raw material of following mass percent：10~20% acrylic acid, 1~10% ammonium persulfate, 70~80%
Water.
Preferably, the speed type swelling agent is made of the raw material of following percentage by weight：Active calcium oxide 10~20%,
Magnesia 2~10%, sulphoaluminate cement clinker 20~40%, gypsum 15~25%, Sodium stearate 5~15%, silicon ash 2~
10%th, N, N '-dinitrosopentamethylene tetramine 0.5~1.5%.
Preferably, the self-control curing agent is made of the raw material of following percentage by weight：15~25 parts of waterglass, epoxy
6~16 parts of resin, 2~12 parts of lignocellulosic, 2~10 parts of acrylic acid, 1~5 part of Lauryl Alcohol ester, butyl methacrylate 1
~5 parts, 40~60 parts of water.
The advantages of the present invention：
(1) present invention is combined using P.O52.5 cement and clinker, and mixing compounding is carried out using both components
Use, the intensity, tensile strength and expansion character of grouting material can be effectively improved.Water glass in the self-control curing agent of the present invention
Glass uniformly envelopes epoxy resin, avoids discharging substantial amounts of moisture too early, therefore saturation-sustained release by making curing agent by oneself is made
With persistently providing moisture during hydration and hardening for grouting material, it is possible to achieve Self-curing, it is not necessary to nourishment.The present invention
Fast type swelling agent solve the problems, such as that existing expansive agent for cement slurry early expansion is difficult, can provide stabilization early expansion effect,
It, which expands to shrink with cementitious material aquation, matches, and grouting material can be made to obtain good volume stability.The rubber powder of the present invention rises
The effect of water conservation and increase slurry viscosity, makes slurries not bleeding, workability is improved, and additionally makes the Stiffness Drop of grouting material
It is low, and grouting material acquisition and reinforcing bar, the matched elasticity modulus of sleeve can be made when incorporation is appropriate, grouting material and steel can be improved
Bonding force between muscle, sleeve.
(2) each component of the present invention cooperate, synergistic effect, solve grouting material high fluidity and retentivity, shrink with
The contradiction of expansion, can realize that the grouting material has good mobility after adding water to stir, will not be sent out when being crossed and being mixed with water
Raw sedimentation and the phenomenon of bleeding, are not easy to be layered, are not easy to crack, so that ensure that the equal body of material and application property, can rapid shaping
Keep form, there is early strengthening and high strengthening, high cohesive force, microdilatancy, is filled into reinforced bar sleeve, can make reinforcing bar and reinforcing bar,
Firm connection is formed between reinforcing bar and sleeve, and there is good durability.
Embodiment
The present invention is described in further details with specific embodiment below, but the present invention is not only limited in detail below in fact
Apply example.
Embodiment one
The present invention provides early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function, including grouting material
Dry powder and water, wherein grouting material dry powder are made of the raw material of following parts by weight：50 parts of cement admixture, 40 parts of fine aggregate, stream
Become 5 parts of agent, fast 10 parts of type swelling agent, 0.5 part of polyoxypropylene ethylene oxide glycerin ether, makes 0.5 part of curing agent, 0.1 part of rubber powder by oneself.
The mass ratio of the dry powder grouting material and water is 100:8.
The weight ratio of P.O52.5 cement and clinker is 4 in the cement admixture:1.
The part by weight of 20~60 mesh quartz sands and 60~120 mesh quartz sands is 1 in the fine aggregate:1.
The speed type swelling agent is made of the raw material of following percentage by weight：Active calcium oxide 20%, magnesia 8%, sulphur
Aluminate cement clinker 30%, gypsum 22%, Sodium stearate 12%, silicon ash 7%, N, N '-dinitrosopentamethylene tetramine
1%.
The self-control curing agent is made of the raw material of following percentage by weight：20 parts of waterglass, 8 parts of epoxy resin, wood
4 parts of matter cellulose, 6 parts of acrylic acid, 2 parts of Lauryl Alcohol ester, 2 parts of butyl methacrylate, 50 parts of water.
The rheological agent is made of the raw material of following parts by weight：35 parts of methyl alkenyl polyoxyethylene ether, self-control auxiliary agent
15 parts, 15 parts of methacrylic acid, 3 parts of thioacetic acid, 3 parts of piece alkali, 50 parts of water；The self-control auxiliary agent is by following mass percent
Raw material be made：15% acrylic acid, 5% ammonium persulfate, 80% water.
Prepare with the following method：Above-mentioned prepared raw material is put into dry powder mortar mixing machine and is mixed, is sufficiently stirred
15~30min, is made bar connecting sleeve grouting material dry powder；When in use, syrup solids are mixed with water, is mixed with mixer
3~5min of stirring is closed, that is, the bar connecting sleeve grouting material available for sleeve grouting is made.
Embodiment two
The present invention provides early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function, including grouting material
Dry powder and water, wherein grouting material dry powder are made of the raw material of following parts by weight：55 parts of cement admixture, 45 parts of fine aggregate, stream
Become 8 parts of agent, fast 15 parts of type swelling agent, 2 parts of polyoxypropylene ethylene oxide glycerin ether, makes 3 parts of curing agent, 0.5 part of rubber powder by oneself.It is described
The mass ratio of dry powder grouting material and water is 100:12
The weight ratio of P.O52.5 cement and clinker is 2 in the cement admixture:1.
The part by weight of 20~60 mesh quartz sands and 60~120 mesh quartz sands is 2 in the fine aggregate:1.
The speed type swelling agent is made of the raw material of following percentage by weight：Active calcium oxide 20%, magnesia 8%, sulphur
Aluminate cement clinker 30%, gypsum 22%, Sodium stearate 12%, silicon ash 7%, N, N '-dinitrosopentamethylene tetramine
1%.
The self-control curing agent is made of the raw material of following percentage by weight：20 parts of waterglass, 8 parts of epoxy resin, wood
4 parts of matter cellulose, 6 parts of acrylic acid, 2 parts of Lauryl Alcohol ester, 2 parts of butyl methacrylate, 50 parts of water.
The rheological agent is made of the raw material of following parts by weight：35 parts of methyl alkenyl polyoxyethylene ether, self-control auxiliary agent
15 parts, 15 parts of methacrylic acid, 3 parts of thioacetic acid, 3 parts of piece alkali, 50 parts of water；The self-control auxiliary agent is by following mass percent
Raw material be made：15% acrylic acid, 5% ammonium persulfate, 80% water.
Preparation process is the same as embodiment 1.
Embodiment three
The present invention provides early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function, including grouting material
Dry powder and water, wherein grouting material dry powder are made of the raw material of following parts by weight：60 parts of cement admixture, 50 parts of fine aggregate, stream
Become 10 parts of agent, fast 20 parts of type swelling agent, 3 parts of polyoxypropylene ethylene oxide glycerin ether, makes 5 parts of curing agent, 1 part of rubber powder by oneself.It is described
The mass ratio of dry powder grouting material and water is 100:16.
The weight ratio of P.O52.5 cement and clinker is 4 in the cement admixture:3.
The part by weight of 20~60 mesh quartz sands and 60~120 mesh quartz sands is 3 in the fine aggregate:1；
The speed type swelling agent is made of the raw material of following percentage by weight：Active calcium oxide 20%, magnesia 8%, sulphur
Aluminate cement clinker 30%, gypsum 22%, Sodium stearate 12%, silicon ash 7%, N, N '-dinitrosopentamethylene tetramine
1%.
The self-control curing agent is made of the raw material of following percentage by weight：20 parts of waterglass, 8 parts of epoxy resin, wood
4 parts of matter cellulose, 6 parts of acrylic acid, 2 parts of Lauryl Alcohol ester, 2 parts of butyl methacrylate, 50 parts of water.
The rheological agent is made of the raw material of following parts by weight：35 parts of methyl alkenyl polyoxyethylene ether, self-control auxiliary agent
15 parts, 15 parts of methacrylic acid, 3 parts of thioacetic acid, 3 parts of piece alkali, 50 parts of water；The self-control auxiliary agent is by following mass percent
Raw material be made：15% acrylic acid, 5% ammonium persulfate, 80% water.
Preparation process is the same as embodiment 1.
Table 1 is detected the performance of the embodiment 1-3 grouting materials prepared
Grouting material test result of the present invention with《Bar connecting sleeve grouting material》(JG/T 408-2013) performance criteria value
Compare list
As seen from the above table, grouting material of the invention meets《Bar connecting sleeve grouting material》(JG/T408-2013) standard
Regulation, have early strong, intensity is high, and vertical expansion ratio is moderate will not to cause excessive expansion to cause grout structure to be destroyed, intensity drop
It is low, and cracking resistance, good seepage-proof property, intensity and expansion character to slurry have good improving effect.
It the above is only the feature implementation example of the present invention, the scope of the present invention be not limited in any way.It is all to use together
The technical solution formed Deng exchange or equivalence replacement, all falls within rights protection scope of the present invention.
Claims (5)
1. early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function, it is characterised in that：Including grouting material
Dry powder and water, wherein grouting material dry powder are mainly made of the raw material of following parts by weight：
The mass ratio of the grouting material dry powder and water is 100:8~16；
The cement admixture is 4 by mass ratio:1~2 P.O52.5 cement and clinker is combined.
2. early strengthening and high strengthening as claimed in claim 1, microdilatancy, the bar connecting sleeve grouting material of since conservation function, it is special
Sign is：Including grouting material dry powder and water, wherein grouting material dry powder is mainly made of the raw material of following parts by weight：
The mass ratio of the dry powder grouting material and water is 100:10~14.
3. early strengthening and high strengthening as claimed in claim 1, microdilatancy, the bar connecting sleeve grouting material of since conservation function, it is special
Sign is：The speed type swelling agent is made of the raw material of following percentage by weight：Active calcium oxide 10~20%, magnesia 2~
10%, sulphoaluminate cement clinker 20~40%, gypsum 15~25%, Sodium stearate 5~15%, silicon ash 2~10%, N, N '-
Dinitrosopentamethylene tetramine 0.5~1.5%.
4. early strengthening and high strengthening as claimed in claim 1, microdilatancy, the bar connecting sleeve grouting material of since conservation function, it is special
Sign is：The fine aggregate is the mixing of 20~60 mesh quartz sands and 60~120 mesh quartz sands, the two Mixing ratio by weight example is
1~3:1.
5. early strengthening and high strengthening as claimed in claim 1, microdilatancy, the bar connecting sleeve grouting material of since conservation function, it is special
Sign is：The self-control curing agent is made of the raw material of following percentage by weight：20 parts of waterglass, 8 parts of epoxy resin, wooden fibre
4 parts of dimension element, 6 parts of acrylic acid, 2 parts of Lauryl Alcohol ester, 2 parts of butyl methacrylate, 50 parts of water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205361.XA CN107935504A (en) | 2017-11-27 | 2017-11-27 | Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205361.XA CN107935504A (en) | 2017-11-27 | 2017-11-27 | Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function |
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| Publication Number | Publication Date |
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| CN107935504A true CN107935504A (en) | 2018-04-20 |
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| CN201711205361.XA Pending CN107935504A (en) | 2017-11-27 | 2017-11-27 | Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665780A (en) * | 2019-01-28 | 2019-04-23 | 上海恒福科技发展有限公司 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
| CN111302730A (en) * | 2020-02-25 | 2020-06-19 | 湖南加美乐素新材料股份有限公司 | Preparation method of grouting material special for fabricated building |
| CN112592127A (en) * | 2020-12-16 | 2021-04-02 | 江苏诺邦建材有限公司 | Slow-release grouting material for steel shell immersed tube grouting and construction method thereof |
| CN112707694A (en) * | 2019-12-24 | 2021-04-27 | 科之杰新材料集团福建有限公司 | Reinforcing steel bar sleeve grouting material for prefabricated part and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772692A (en) * | 2005-09-22 | 2006-05-17 | 武汉理工大学 | High-energy delay expanding agent for closed concrete and its prepn |
| CN103435317A (en) * | 2013-08-16 | 2013-12-11 | 武汉理工大学 | Compound expanding agent for inhibiting temperature rising in early stage and promoting hydration in later stage and preparation method thereof |
| CN104478346A (en) * | 2014-12-25 | 2015-04-01 | 江西省萍乡市联友建材有限公司 | High-strength non-shrinkage grouting material with early strength and autogenous curing function and preparation method of grouting material |
| CN105236869A (en) * | 2014-07-08 | 2016-01-13 | 上海城建物资有限公司 | Special high strength grouting material for connecting reinforcement sleeve |
| CN106587839A (en) * | 2016-12-15 | 2017-04-26 | 江西省萍乡市联友建材有限公司 | Shrinkage-free, self-maintaining and anti-corrosive mud jacking agent |
-
2017
- 2017-11-27 CN CN201711205361.XA patent/CN107935504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772692A (en) * | 2005-09-22 | 2006-05-17 | 武汉理工大学 | High-energy delay expanding agent for closed concrete and its prepn |
| CN103435317A (en) * | 2013-08-16 | 2013-12-11 | 武汉理工大学 | Compound expanding agent for inhibiting temperature rising in early stage and promoting hydration in later stage and preparation method thereof |
| CN105236869A (en) * | 2014-07-08 | 2016-01-13 | 上海城建物资有限公司 | Special high strength grouting material for connecting reinforcement sleeve |
| CN104478346A (en) * | 2014-12-25 | 2015-04-01 | 江西省萍乡市联友建材有限公司 | High-strength non-shrinkage grouting material with early strength and autogenous curing function and preparation method of grouting material |
| CN106587839A (en) * | 2016-12-15 | 2017-04-26 | 江西省萍乡市联友建材有限公司 | Shrinkage-free, self-maintaining and anti-corrosive mud jacking agent |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665780A (en) * | 2019-01-28 | 2019-04-23 | 上海恒福科技发展有限公司 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
| CN112707694A (en) * | 2019-12-24 | 2021-04-27 | 科之杰新材料集团福建有限公司 | Reinforcing steel bar sleeve grouting material for prefabricated part and preparation method thereof |
| CN112707694B (en) * | 2019-12-24 | 2022-05-10 | 科之杰新材料集团福建有限公司 | Reinforcing steel bar sleeve grouting material for prefabricated part and preparation method thereof |
| CN111302730A (en) * | 2020-02-25 | 2020-06-19 | 湖南加美乐素新材料股份有限公司 | Preparation method of grouting material special for fabricated building |
| CN112592127A (en) * | 2020-12-16 | 2021-04-02 | 江苏诺邦建材有限公司 | Slow-release grouting material for steel shell immersed tube grouting and construction method thereof |
| CN112592127B (en) * | 2020-12-16 | 2022-09-16 | 江苏诺邦建材有限公司 | Slow-release grouting material for steel shell immersed tube grouting and construction method thereof |
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Inventor after: Wu Jiandong Inventor after: Xiao Yanfei Inventor after: Yu Chao Inventor after: Zhou Youbin Inventor after: Pei Shunwen Inventor after: Yang Yanni Inventor before: Wu Jiandong Inventor before: Yang Yanni Inventor before: Zhou Yujun Inventor before: Xiong Ke Inventor before: Qi Jiangfeng Inventor before: Xie Yu Inventor before: Xiao Yanfei Inventor before: Yu Chao Inventor before: Zhou Youbin Inventor before: Pei Shunwen |
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