CN103835235A - Steel-wire stay cable protection device and production method thereof - Google Patents
Steel-wire stay cable protection device and production method thereof Download PDFInfo
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- CN103835235A CN103835235A CN201410072034.1A CN201410072034A CN103835235A CN 103835235 A CN103835235 A CN 103835235A CN 201410072034 A CN201410072034 A CN 201410072034A CN 103835235 A CN103835235 A CN 103835235A
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- wire rope
- steel wire
- steel
- stay cable
- zinc powder
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Abstract
The invention discloses a steel-wire stay cable protection device which comprises a steel wire rope. A polyester wrapping tape wraps the outer layer of a steel wire rope, a polyethylene jacket which is of a hollow structure wraps the outer layer of the polyester wrapping tape, and inert gasses are infused into the hollow structure. The production method includes that a physical covering function is achieved by directly spraying zinc liquid subjected to air cooling on the surface of the steel wire rope, so that the steel wire rope is isolated from corrosive media like water and air, and being low in temperature during spraying, the steel wire rope is free of deformation, and internal mechanical properties are basically unaffected; the electrochemical capacity of zinc powder is active and is lower than the steel wire rope in electrode potential, the zinc powder is a negative electrode while the steel wire rope is a positive electrode in a corrosion cell, the zinc powder loses electrons and changes into ions to enter an electrolyte solution to be corroded, and free electrons flow to the steel wire rope to enable the same to be polarized to be protected. The steel-wire stay cable protection device is safe and reliable and convenient to construct, the technical method is simple to implement, and endurance and safety of a stay cable are greatly improved.
Description
Technical field
The present invention relates to bridge protection field, relate in particular to a kind of steel wire stay cable protector and preparation method thereof.
Background technology
Suspension cable is the peculiar member of cable stayed bridge, and it plays a part the dead load of girder and mobile load to pass to ground by Sarasota.Because suspension cable is generally arranged in beam external body, and for a long time under high-stress state, its sectional dimension is again little, thus very responsive to corrosiveness, also have larger loss even if there is its intensity of slight corrosion.At present in process of production, steel wire stay cable generally adopts hot-dip galvanizing technique processing, before processing, need elder generation through overpickling, phosphating process, Steel Wire Surface has the residue of acid, alkali lye, has left the hidden danger of corrosion, make zinc coat easily produce and come off, and in galvanizing by dipping process, because bath temperature is high, easily make steel wire distortion, produce internal stress, affect its mechanical property.In use, steel wire stay cable is also often because aging, the cracking of outsourcing hot extruded polyethylene sheath, and occur corrosion in various degree having had a strong impact on durability and the safety of cable stayed bridge bridge span structure, the form of having to change rope ensures the normal use of bridge.And be far longer than the fabricating cost of suspension cable by changing the expense that rope produces, and also will have a strong impact on traffic, cause bad social influence simultaneously.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, simple, cheap steel wire stay cable protector of a kind of technique and preparation method thereof is provided, improve durability and the safety of suspension cable.
The present invention is achieved through the following technical solutions:
A kind of steel wire stay cable protector, comprises wire rope 1, and the skin of described wire rope 1 is enclosed with polyester band 3, and the skin of described polyester band 3 is enclosed with pe sheath 4, and described pe sheath 4 is hollow structure 5, the interior inert gas injecting of this hollow structure 5.
Described wire rope 1 is made up of many steel wires, is filled with zinc powder 2 between every steel wire in the gap forming.
The cross sectional shape of described wire rope 1 is polygon.
The preparation method of above-mentioned steel wire stay cable protector, comprises the steps:
(1) wire rope 1 adopts after derusting by sandblasting, will be sprayed directly into wire rope 1 surface through the cooled zinc liquid of air upper, makes wire rope 1 surface form topping;
(2) zinc powder 2 is filled in the gap forming between every steel wire of wire rope 1;
(3) by the periphery parcel polyester band 3 of wire rope 1;
(4) put pe sheath 4 at the skin of polyester band 3;
(5) finally inert gas is injected in the hollow structure 5 of pe sheath 4, form layer of inert.
The present invention, with respect to prior art, has following advantage and effect:
After zinc liquid is cooling by air, be sprayed directly into wire rope 1 surface, play physics covering effect, the corrosive mediums such as wire rope 1 and water and air are kept apart, the temperature during due to spraying is very low, wire rope 1 can not be out of shape, and its inner mechanics performance base is originally unaffected.
Because the chemical property of zinc powder is more active; electrode potential is lower than wire rope 1; in this corrosion cell; zinc powder is negative pole; wire rope 1 is anodal, and zinc powder loses electronics, becomes ion and enters in dielectric solution and be corroded; its free electron flows to wire rope 1, wire rope 1 is polarized and be protected.
Because pe sheath 4 plays a part isolated moisture and etchant gas to wire rope 1, simultaneously can also shielding of ultraviolet, prevent mechanical injuries.
Inert gas injects in the hollow structure 5 of pe sheath 4, forms layer of inert, thereby further improves the decay resistance of wire rope 1.
The technology of the present invention means are simple and easy to do, safe and reliable, easy construction, the durability and the safety that have greatly improved suspension cable.
Brief description of the drawings
Fig. 1 is cross section structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figure 1.A kind of steel wire stay cable protector of the present invention, comprise wire rope 1, the skin of described wire rope 1 is enclosed with polyester band 3, and the skin of described polyester band 3 is enclosed with pe sheath 4, described pe sheath 4 is hollow structure 5, the interior inert gas injecting of this hollow structure 5.This hollow structure is sealed hollow structure.
Described wire rope 1 is made up of many steel wires, is filled with zinc powder 2 between every steel wire in the gap forming.
The cross sectional shape of described wire rope 1 is polygon.
The preparation method of above-mentioned steel wire stay cable protector, comprises the steps:
(1) wire rope 1 adopts after derusting by sandblasting, will be sprayed directly into wire rope 1 surface through the cooled zinc liquid of air upper, makes wire rope 1 surface form topping;
(2) zinc powder 2 is filled in the gap forming between every steel wire of wire rope 1;
(3) by the periphery parcel polyester band 3 of wire rope 1;
(4) put pe sheath 4 at the skin of polyester band 3;
(5) finally inert gas is injected in the hollow structure 5 of pe sheath 4, form layer of inert.
Described polyester band 3 can adopt fiber reinforcement polyester band.
Described derusting by sandblasting, adopts blasting craft, for removing the rusty stain on wire rope 1 surface.
After zinc liquid is cooling by air, be sprayed directly into wire rope 1 surface, play physics covering effect, the corrosive mediums such as wire rope 1 and water and air are kept apart, the temperature during due to spraying is very low, wire rope 1 can not be out of shape, and its inner mechanics performance base is originally unaffected.
Because the chemical property of zinc powder is more active; electrode potential is lower than wire rope 1; in this corrosion cell; zinc powder is negative pole; wire rope 1 is anodal, and zinc powder loses electronics, becomes ion and enters in dielectric solution and be corroded; its free electron flows to wire rope 1, wire rope 1 is polarized and be protected.
Because pe sheath 4 plays a part isolated moisture and etchant gas to wire rope 1, simultaneously can also shielding of ultraviolet, prevent mechanical injuries.
Inert gas injects in the hollow structure 5 of pe sheath 4, forms layer of inert, thereby further improves the decay resistance of wire rope 1.
As mentioned above, just can realize preferably the present invention.
Embodiments of the present invention are not restricted to the described embodiments; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (4)
1. a steel wire stay cable protector, comprise wire rope, it is characterized in that: the skin of described wire rope is enclosed with polyester band, the skin of described polyester band is enclosed with pe sheath, described pe sheath is hollow structure, inert gas injecting in this hollow structure.
2. steel wire stay cable protector according to claim 1, is characterized in that: described wire rope is made up of many steel wires, in the gap forming, is filled with zinc powder between every steel wire.
3. steel wire stay cable protector according to claim 1 and 2, is characterized in that: the cross sectional shape of described wire rope is polygon.
4. according to the preparation method of the steel wire stay cable protector described in any one in claims 1 to 3, it is characterized in that comprising the steps:
(1) wire rope adopts after derusting by sandblasting, will be sprayed directly on wire rope surface through the cooled zinc liquid of air, makes wire rope surface form topping;
(2) zinc powder is filled in the gap forming between every steel wire of wire rope;
(3) by the periphery parcel polyester band of wire rope;
(4) put pe sheath at the skin of polyester band;
(5) finally inert gas is injected in the hollow structure of pe sheath, form layer of inert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072034.1A CN103835235B (en) | 2014-02-28 | 2014-02-28 | A kind of steel wire stay cable preventer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072034.1A CN103835235B (en) | 2014-02-28 | 2014-02-28 | A kind of steel wire stay cable preventer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103835235A true CN103835235A (en) | 2014-06-04 |
| CN103835235B CN103835235B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410072034.1A Expired - Fee Related CN103835235B (en) | 2014-02-28 | 2014-02-28 | A kind of steel wire stay cable preventer and preparation method thereof |
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| Country | Link |
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| CN (1) | CN103835235B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652272A (en) * | 2014-06-20 | 2015-05-27 | 柳州市冠桥预应力机械有限公司 | Connecting method of protecting sleeve for inhaul cable |
| CN107419662A (en) * | 2017-08-23 | 2017-12-01 | 柳州欧维姆机械股份有限公司 | A kind of Ha Fushi Novel fireproofs drag-line and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5173982A (en) * | 1991-07-25 | 1992-12-29 | Greiner Inc, Southern | Corrosion protection system |
| US20020028112A1 (en) * | 2000-05-31 | 2002-03-07 | Bjorn Paulshus | Tension member |
| CN1858358A (en) * | 2006-04-29 | 2006-11-08 | 江苏法尔胜新日制铁缆索有限公司 | Novel durable dragline structure |
| CN201228344Y (en) * | 2008-06-27 | 2009-04-29 | 柳州市桥厦工程管材有限公司 | Light cable plastic sheath tube |
| CN102953334A (en) * | 2011-08-27 | 2013-03-06 | 上海浦江缆索股份有限公司 | Tube-expanded airtight stay cable and application method thereof |
| CN203741718U (en) * | 2014-02-28 | 2014-07-30 | 华南理工大学 | Protective device for steel wire stay cable |
-
2014
- 2014-02-28 CN CN201410072034.1A patent/CN103835235B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5173982A (en) * | 1991-07-25 | 1992-12-29 | Greiner Inc, Southern | Corrosion protection system |
| US20020028112A1 (en) * | 2000-05-31 | 2002-03-07 | Bjorn Paulshus | Tension member |
| CN1858358A (en) * | 2006-04-29 | 2006-11-08 | 江苏法尔胜新日制铁缆索有限公司 | Novel durable dragline structure |
| CN201228344Y (en) * | 2008-06-27 | 2009-04-29 | 柳州市桥厦工程管材有限公司 | Light cable plastic sheath tube |
| CN102953334A (en) * | 2011-08-27 | 2013-03-06 | 上海浦江缆索股份有限公司 | Tube-expanded airtight stay cable and application method thereof |
| CN203741718U (en) * | 2014-02-28 | 2014-07-30 | 华南理工大学 | Protective device for steel wire stay cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652272A (en) * | 2014-06-20 | 2015-05-27 | 柳州市冠桥预应力机械有限公司 | Connecting method of protecting sleeve for inhaul cable |
| CN107419662A (en) * | 2017-08-23 | 2017-12-01 | 柳州欧维姆机械股份有限公司 | A kind of Ha Fushi Novel fireproofs drag-line and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103835235B (en) | 2016-08-17 |
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Granted publication date: 20160817 |