CN106638657B - A kind of prestressed anchor bar assembly anti-corrosion method - Google Patents
A kind of prestressed anchor bar assembly anti-corrosion method Download PDFInfo
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- CN106638657B CN106638657B CN201610904431.XA CN201610904431A CN106638657B CN 106638657 B CN106638657 B CN 106638657B CN 201610904431 A CN201610904431 A CN 201610904431A CN 106638657 B CN106638657 B CN 106638657B
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- bar assembly
- heat
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- 238000005260 corrosion Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000004519 grease Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000003755 preservative agent Substances 0.000 claims abstract description 7
- 230000002335 preservative effect Effects 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 9
- 238000004381 surface treatment Methods 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- 239000011440 grout Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000011253 protective coating Substances 0.000 claims description 2
- -1 Siloxanes Chemical class 0.000 claims 1
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002421 anti-septic effect Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000013556 antirust agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 125000005375 organosiloxane group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0013—Protection against corrosion
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of prestressed anchor bar assembly anti-corrosion method, anchor rod component includes anchor pole, nut I, nut II, locking nut and gasket, carries out preservative treatment to it respectively.The present invention takes different anti-corrosion measures for the anchor rod component of different parts difference corrosion mechanism, and anti-corrosion cost performance will be far above traditional anti-corrosion measure；Anchor pole overall length uses the flexible corrosion protection measure of heat shrinkage film and preservation fat, anti-corrosion grease is made to be reliably attached on anchor pole, not only solve the protection question in transhipment, transport and storage process, and corrosion-inhibiting coating is destroyed since prestressing force leads to the problem of surface elongation deformation when avoiding anchor pole work, improve anti-corrosion service life；The nut and gasket of exsertion part are handled using zincizing, and antiseptic property is excellent, and zincizing temperature is less than the temperature of material, do not interfere with the mechanical property of material, and zincizing coating abrasion performance is good.
Description
Technical field
The present invention relates to building engineering fields, relate in particular to a kind of prestressed anchor bar assembly anti-corrosion method.
Background technology
Prestressing force blower foundation is on the basis of Conventional gravity formula spread foundation structure type, by prestressed high strength anchor
The metal components such as bar assembly pour completion jointly with concrete.Prestressed anchor bar assembly include anchor pole, nut, locking nut and
Gasket etc., prestressed anchor bar assembly is after installation is complete, the corrosion mechanism of the component of different installation positions not exclusively, outside anchor pole
Dew position and nut are often subject to the corrosion such as air, rainwater, and the anchor pole and nut being embedded in concrete are mainly by concrete
Corrosion, the anti-corrosion modes such as overall length galvanizing, Dacroment, japanning before usual anchor rod component use manufacture, production cost is higher, and
Anchor rod component is highly vulnerable to breakage corrosion-inhibiting coating in transhipment, transport, installation process, reduces anti-corrosion effect, and using galvanizing
Anti-corrosion can reduce anchor rod component product mechanical property.Domestic wind power plant is normally at northwest borderland drought area at present,
Prestressed anchor bar assembly uses traditional anti-corrosion method, and there are the shortcomings of anti-corrosion effect is poor, economic performance is poor.
Invention content
The shortcomings that the purpose of the invention is to overcome in the prior art, provides a kind of prestressed anchor bar assembly anti-corrosion side
Method.
To achieve the above object, the present invention uses following technical scheme：A kind of prestressed anchor bar assembly anti-corrosion method, anchor pole
Component includes anchor pole, nut I, nut II, locking nut and gasket, carries out preservative treatment to it respectively, preservative treatment step is：
（1）The anchor pole overall length applies anti-corrosive grease and is coated with heat shrinkage film, and bailing is transported to scene；
（2）The mating attaching nut I of anchor pole exsertion part at the top of blower foundation and gasket, nut I and gasket use
Zincizing is surface-treated；
（3）The anchor pole is in the mating attaching nut II of blower foundation lower portion and locking nut, nut II and locking screw
Mother is surface-treated using phosphatization immersion oil；
（4）The anchor pole wears PE pipes in blower foundation inner portion, and anchor pole both ends are exposed to the heat shrinkage film outside PE pipes and are cut out
Fall, anchor pole and PE pipes are then penetrated into base ring successively and tower drum flange ring is assembled into anchor pole cage, determine PE pipes both ends after good position
It is first fixed with metal clip, the sealing of reusable heat Heat-Shrinkable Tubings；
（5）The anchor pole at the thread fitting of nut I, nut II and locking nut using waterproof silicone grease with being sealed, then
It revolves again and puts nut I, nut II and locking nut, casting concrete and high-strength grout, after anchor pole tensioning, anchor pole is in wind turbine
Basic the external of top exsertion part places head protector.
The anti-corrosive grease is solvent cutback grease, is coated with spray or impregnation method, coating layer thickness for 0.1~
0.3mm。
The heat shrinkage film is POF heat shrinkage films, is packed automatically with heat shrink wrapping machine.
The zincizing surface treatment heating temperature is 350 DEG C~420 DEG C, and forming zinc-iron alloy protection in workpiece surface applies
Layer, coating layer thickness are 8 ~ 15um.
The head protector is pyramidal structure, is made of elastic material.
The phosphatization immersion oil surface treatment is middle temperature phosphating, and phosphatization temperature is 70 DEG C~80 DEG C.
The metal clip is big American hose clamp, and material is stainless steel 201.
The heat-shrinkable T bush is PET heat-shrinkable T bush, is allowed to tighten sealing PE pipes both ends by heat gun.
The waterproof silicone grease is made of organosiloxane thickening high-purity inorganic thickening agent, and temperature resistant range is -60 DEG C~280
℃。
The present invention takes different anti-corrosion measures, anti-corrosion sexual valence for the anchor rod component of different parts difference corrosion mechanism
Than to be far above traditional anti-corrosion measure；Anchor pole overall length makes anti-corrosion using the flexible corrosion protection measure of heat shrinkage film and preservation fat
Grease is reliably attached on anchor pole, not only solves the protection question in transhipment, transport and storage process, and avoid anchor
Corrosion-inhibiting coating is destroyed since prestressing force leads to the problem of surface elongation deformation when bar works, improves anti-corrosion service life；Outside
The nut and gasket for revealing position are handled using zincizing, and antiseptic property is excellent, and zincizing temperature is less than the temperature of material, no
The mechanical property of material can be influenced, and zincizing coating abrasion performance is good.
Description of the drawings
Fig. 1 is the structure diagram of anchor rod component.
Specific embodiment
A kind of prestressed anchor bar assembly anti-corrosion method, as shown in Figure 1, anchor rod component includes anchor pole 1, nut I 5, nut II
2nd, locking nut 3 and gasket 4, respectively carry out it preservative treatment, and preservative treatment step is：
（1）1 overall length of anchor pole applies anti-corrosive grease and is coated with heat shrinkage film, and bailing is transported to scene；
（2）The mating attaching nut I 5 of the exsertion part at the top of blower foundation of anchor pole 1 and gasket 4, nut I 5 and gasket 4
It is surface-treated using zincizing；
（3）The anchor pole 1 is in the mating attaching nut II 2 of blower foundation lower portion and locking nut 3, nut II 2 and lock
Tight nut 3 is using the surface treatment of phosphatization immersion oil；
（4）The anchor pole 1 wears PE pipes 11 in blower foundation inner portion, the heat 1 both ends of anchor pole being exposed at outside PE pipes 11
Contracting film is dismissed, and anchor pole 1 and PE pipes 11 then are penetrated base ring 13 successively and tower drum flange ring 7 is assembled into anchor pole cage, determines position
It postpones 11 both ends of PE pipes first to be fixed with metal clip 12, reusable heat Heat-Shrinkable Tubings 8 seal；
（5）The anchor pole 1 with being sealed at the thread fitting of nut I 5, nut II 2 and locking nut 3 using waterproof silicone grease,
Then it revolves again and puts nut I 5, nut II 2 and locking nut 3, casting concrete 10 and high-strength grout 9,1 tensioning of anchor pole finishes
Afterwards, the external of exsertion part at the top of blower foundation of anchor pole 1 places head protector 6.
The anti-corrosive grease is solvent cutback grease, is coated with spray or impregnation method, coating layer thickness for 0.1~
0.3mm, anti-corrosive grease is that oil adds lubricating oil or lubricating grease made from various antirust agent based on lubricating oil, as metal
The rust-proof coating of parts surface, rust-proof mechanism are that antirust agent is dissolved in into micella in grease, are formed in metal surface firmly
Adsorbed film, the hydrocarbon chain in anti-corrosive grease component then mix polymolecular layer with antirust agent formation, so as to prevent the erosion of water and oxygen,
Metal surface is prevented to get rusty.Anti-corrosive grease is segmented into oil type, epoxy-type, solvent cutback, emulsifier and anti-rust and lubrication type etc.,
Wherein solvent cutback grease fast drying, film are thin, transparent, rust-preventing characteristic is reliable.
The heat shrinkage film be POF heat shrinkage films, packed automatically with heat shrink wrapping machine, POF heat shrinkage films surface gloss height, good toughness,
Tearing toughness is big, is heat-shrinked the features such as uniform and suitable fully automatic high-speed packaging, heat shrinkage film rain-proof, moisture-proof, mould proof, antirust,
It can also play and avoid 1 both ends screw thread of anchor pole colliding in transhipment, transport and installation process, heat shrinkage film pyrocondensation finishes can be with tight beam
Anchor pole prevents grease from spreading, and does not influence the installation of PE pipes 11, is risen jointly with PE pipes 11 in the concrete 10 inside blower foundation
To isolation steam, antisepsis is played.
Nut I 5 and gasket 4 are often subject to the corrosion such as air, rainwater, need using zincizing in blower foundation exsertion part
Surface treatment, the principle of zincizing surface treatment are to mix steel component, zinc powder and inertia impact media and be filled in oozing for sealing
350 ~ 420 DEG C are heated in zinc revolving burner and keeps the temperature a period of time, is acted on using the thermal diffusion of metallic atom, in component surface shape
Into zinc-iron alloy protective coating, after through electrobrightening and passivation, coating layer thickness up to 8 ~ 15um, coating hardness for 250~
420HV, the resistance to neutral salt spray time was up to 500 to 1000 hours.
The head protector 6 is pyramidal structure, and the protection, it can be achieved that anchor rod component exsertion part is made of elastic material,
Head protector 6 has preferable elasticity, can be securely fixed on anchor pole 1；And head protector 6 has good weatherability, it can be in purple
Embrittlement does not occur under outside line or low temperature environment and cause to crack.
Nut II 2 and locking nut 3 are embedded in concrete 10, mainly by the vapour corrosion in concrete 10, nut
II 2 and locking nut 3 need to carry out phosphatization immersion oil surface treatment, the technological process of phosphatization immersion oil is：Degreasing → washing → pickling
→ washing → table tune → washing → phosphatization → washing → hot water wash → dehydration → immersion oil, the surface treatment of phosphatization immersion oil are medium temperature phosphorus
Change, phosphatization temperature is 70 DEG C~80 DEG C, and middle temperature phosphating free acidity is stablized, and is easily grasped, and phosphating time is short, and production efficiency is high, resistance to
Corrosion and high temperature phosphorization film are essentially identical, and compared to low temperature phosphor and normal temperature phosphating, the film slushing oil of middle temperature phosphating is strong, binding force
It is good.
The metal clip 12 is big American hose clamp, and material is stainless steel 201, is capable of providing more powerful and accurately stings
It closes.
The heat-shrinkable T bush 8 is PET heat-shrinkable T bush, is allowed to tighten 11 both ends of sealing PE pipes by heat gun, can be to avoid
The corrosion at 1 both ends of anchor pole and 9 contact site of concrete 10 and high-strength grout.
The waterproof silicone grease is made of organosiloxane thickening high-purity inorganic thickening agent, for translucent body of paste, heatproof
Ranging from -60 DEG C~280 DEG C, there is good waterproof seal, high and low temperature, inoxidizability, it may have good machinery peace
Qualitative and colloid stability does not influence the disassembly and installation in later stage.
Claims (9)
1. a kind of prestressed anchor bar assembly anti-corrosion method, it is characterised in that：Anchor rod component includes anchor pole, nut I, nut II, lock
Tight nut and gasket, respectively carry out it preservative treatment, preservative treatment step is：
（1）The anchor pole overall length applies anti-corrosive grease and is coated with heat shrinkage film, and bailing is transported to scene；
（2）The mating attaching nut I of anchor pole exsertion part at the top of blower foundation and gasket, nut I and gasket use zincizing
Surface treatment；
（3）The anchor pole is adopted in the mating attaching nut II of blower foundation lower portion and locking nut, nut II and locking nut
It is surface-treated with phosphatization immersion oil；
（4）The anchor pole wears PE pipes in blower foundation inner portion, the heat shrinkage film that anchor pole both ends are exposed at outside PE pipes is dismissed, so
Anchor pole and PE pipes are penetrated into base ring successively afterwards and tower drum flange ring is assembled into anchor pole cage, PE pipes both ends are first used after determining good position
Metal clip is fixed, the sealing of reusable heat Heat-Shrinkable Tubings；
（5）Then the anchor pole is revolved again with being sealed at the thread fitting of nut I, nut II and locking nut using waterproof silicone grease
Nut I, nut II and locking nut, casting concrete and high-strength grout are put, after anchor pole tensioning, anchor pole is in blower foundation
The external of top exsertion part places head protector.
2. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The anti-corrosive grease is solvent
Dilution type grease is coated with spray or impregnation method, and coating layer thickness is 0.1~0.3mm.
3. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The heat shrinkage film is POF heat
Contracting film is packed automatically with heat shrink wrapping machine.
4. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The zincizing surface treatment adds
Hot temperature is 350 DEG C~420 DEG C, forms zinc-iron alloy protective coating in workpiece surface, coating layer thickness is 8 ~ 15um.
5. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The head protector is taper knot
Structure is made of elastic material.
6. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：At the phosphatization immersion oil surface
It manages as middle temperature phosphating, phosphatization temperature is 70 DEG C~80 DEG C.
7. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The metal clip is big beautiful
Formula hose clamp, material are stainless steel 201.
8. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The heat-shrinkable T bush is PET
Heat-shrinkable T bush is allowed to tighten sealing PE pipes both ends by heat gun.
9. prestressed anchor bar assembly anti-corrosion method according to claim 1, it is characterised in that：The waterproof silicone grease is by organic
Siloxanes thickening high-purity inorganic thickening agent is made, and temperature resistant range is -60 DEG C~280 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904431.XA CN106638657B (en) | 2016-10-18 | 2016-10-18 | A kind of prestressed anchor bar assembly anti-corrosion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904431.XA CN106638657B (en) | 2016-10-18 | 2016-10-18 | A kind of prestressed anchor bar assembly anti-corrosion method |
Publications (2)
| Publication Number | Publication Date |
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| CN106638657A CN106638657A (en) | 2017-05-10 |
| CN106638657B true CN106638657B (en) | 2018-06-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109746584A (en) * | 2019-03-21 | 2019-05-14 | 风范绿色建筑（常熟）有限公司 | A kind of welding for steel structure anti-corrosive technology |
| CN109967982A (en) * | 2019-04-28 | 2019-07-05 | 中船重工海为郑州高科技有限公司 | A kind of preparation method of wind power generating set circular thread anchor component |
| CN110004971A (en) * | 2019-04-28 | 2019-07-12 | 中船重工海为郑州高科技有限公司 | A kind of anti-corrosion method of foundation of wind-driven generator unit anchor rod component |
| CN110872845A (en) * | 2019-12-10 | 2020-03-10 | 江苏金海新能源科技有限公司 | Anti-corrosion anchor bolt piece, pre-stressed anchor bolt assembly and wind power supporting structure |
| CN111760529A (en) * | 2020-07-07 | 2020-10-13 | 郑琼华 | Reaction kettle and reaction kettle installation method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350477A (en) * | 1999-06-01 | 1999-12-21 | Kurosawa Construction Co Ltd | Ground surface side fixing device for ground anchor |
| KR100819536B1 (en) * | 2007-02-02 | 2008-04-08 | 희 봉 김 | Permanent anchor |
| CN202416310U (en) * | 2011-10-08 | 2012-09-05 | 浙江海天建设集团有限公司 | Pressure-dispersed anti-floating anchor rod |
| CN202730758U (en) * | 2012-06-29 | 2013-02-13 | 深圳市工勘岩土工程有限公司 | Permanent pre-stressed anchor cable anchor sealing body |
| CN202787257U (en) * | 2012-09-26 | 2013-03-13 | 青岛温泉建设集团有限公司 | Anti-float anchor |
| CN104846824A (en) * | 2015-05-25 | 2015-08-19 | 曾庆义 | Protective rod, rod for concrete structure, manufacturing process of rod body and anchor rod |
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Effective date of registration: 20220913 Address after: No. 311, Science Avenue, High-tech Zone, Zhengzhou City, Henan Province, 450000 Patentee after: HAIWEI ZHENGZHOU HIGH TECHNOLOGY Co.,Ltd. Patentee after: 713TH Research Institute OF CSIC Address before: 450015, No. 126, Jing Guang Middle Road, Zhengzhou, Henan Patentee before: 713TH Research Institute OF CSIC |
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Address after: No. 311, Science Avenue, High-tech Zone, Zhengzhou City, Henan Province, 450000 Patentee after: China Shipbuilding Haiwei High tech Co.,Ltd. Patentee after: 713rd Research Institute of China Shipbuilding Corp.,Ltd. Address before: No. 311, Science Avenue, High-tech Zone, Zhengzhou City, Henan Province, 450000 Patentee before: HAIWEI ZHENGZHOU HIGH TECHNOLOGY Co.,Ltd. Patentee before: 713TH Research Institute OF CSIC |
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