CN102912692A - Ballastless track slab insulating bar reinforcement with composite coating - Google Patents
Ballastless track slab insulating bar reinforcement with composite coating Download PDFInfo
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- CN102912692A CN102912692A CN2012104200008A CN201210420000A CN102912692A CN 102912692 A CN102912692 A CN 102912692A CN 2012104200008 A CN2012104200008 A CN 2012104200008A CN 201210420000 A CN201210420000 A CN 201210420000A CN 102912692 A CN102912692 A CN 102912692A
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- track slab
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- bar reinforcement
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Abstract
The invention discloses a ballastless track slab insulating bar reinforcement with a composite coating, wherein a zinc alloy layer is formed on the bar reinforcement in a hot dipping manner; then the zinc alloy layer is covered with an epoxy resin layer so as to form the bar reinforcement with the composite coating; and in addition, the zinc alloy layer adopts the alloy proportion as follows: zinc accounts for 89 to 99 percent, aluminum accounts for 0.2 to 10 percent, iron accounts for 0.001 to 0.5 percent, tin accounts for 0.0001 to 0.25 percent, and copper accounts for 0.0001 to 0.25 percent. The metal zinc layer inside the bar reinforcement with the composite coating can provide complete cathodic protection for the bar reinforcement; the epoxy resin layer at the outer part can further isolate corrosive media and provide insulating protection during the transportation, installation and concrete curing processes, can maintain the continuous protection of an anodic coating on iron steel, and can prevent the inner part of a track slab from forming a circuit loop; the track slab achieves a good insulating property, so as to satisfy the requirement that a high-speed railway adopts the track slab to communicate; and particularly the track slab impedance can satisfy the requirement of the communication of a high-speed passenger special line under the situation of torrential rain.
Description
Technical field
The present invention relates to a kind of building bar, refer to especially a kind of composite coating fragment-free track slab insulating reinforcing steel bars for high-speed railway.
Background technology
Along with the progress of society, the raising of science and technology, the railway of China is just towards future development at a high speed at present.
And that existing railway can not provide is electric, the needs of communication progress, uniform stability and poor reliability, but simultaneously because the increasing of rate of traffic flow, it is more difficult that the maintenance of track becomes.
Non-fragment orbit has good stability and reliability, and stable ballast bed structure is provided, and when having arrived high speed traveling, can greatly reduce the workload of maintenance.Actively research and development, popularization non-fragment orbit have become the inexorable trend of China railways great-leap-forward development.And the reinforcing bar that uses in the existing sleeper is common prestressed reinforcement, all can't satisfy the requirement of high-speed railway track plate on application life and insulating properties.
Summary of the invention
The purpose of this invention is to provide a kind of composite coating fragment-free track slab insulating reinforcing steel bars for high-speed railway, it has superior insulation and corrosion resisting property, to satisfy the demand of high-speed railway.
For achieving the above object, solution of the present invention is:
A kind of composite coating fragment-free track slab insulating reinforcing steel bars, wherein: hot dipping has zinc alloy layer on reinforcing bar, and the cover ring epoxy layer forms the composite coating reinforcing bar again outside zinc alloy layer; The alloy proportion of described zinc alloy layer: zinc is that 89%-99%, aluminium are that 0.2%-10%, iron are that 0.001%-0.5%, tin are that 0.0001%-0.25%, copper are 0.0001%-0.25%.
The thickness of described zinc alloy layer is 20-40 μ m; The epoxy resin layer thickness is 180-300 μ m.
After adopting such scheme; the interior metal zinc layer of composite coating reinforcing bar of the present invention can provide reinforcing bar comprehensive cathodic protection; the external rings epoxy layer can further completely cut off corrosive medium and insulation protection and safeguard that anode coating is to the sustainable protection of iron and steel in transportation, installation and concrete curing process; can avoid the inner circuit loop that forms of track plates; the track plate insulation performance is good; adopt the guidance tape communicating requirement to satisfy high-speed railway, special in the rainstorm weather situation guidance tape impedance can satisfy the communication of high speed passenger dedicated railway.
Description of drawings
Fig. 1 is the structural representation of composite coating reinforcing bar of the present invention.
The specific embodiment
Cooperate shown in Figure 1ly, the present invention has disclosed a kind of composite coating fragment-free track slab insulating reinforcing steel bars, and it is the zinc alloy layer 2 that hot dipping has thickness to be on reinforcing bar 1 first, covers one deck epoxy resin layer 3 outside zinc alloy layer again again, thereby forms the composite coating reinforcing bar.
And the weight alloy of described zinc alloy layer ratio:
Zn：89%-99%
Al：0.2%-10%
Fe：0.001%-0.5%
Sn：0.0001%-0.25%
Cu：0.0001%-0.25%
The interior metal zinc layer 2 of composite coating reinforcing bar of the present invention can provide reinforcing bar 1 comprehensive cathodic protection, and external rings epoxy layer 3 can further completely cut off corrosive medium and insulation protection and safeguard that anode coating is to the sustainable protection of iron and steel in transportation, installation and concrete curing process.A kind of novel, insulation and the superior reinforcing bar of corrosion resisting property.
In addition, the thin Zn Alloy Hot Dipped Coating thickness of composite coating fragment-free track slab insulating reinforcing steel bars internal layer is at 20-40 μ m, its have good and iron and steel adhesion property, than conventional galvanizing floor height 2-3 doubly decay resistance and can provide reliable anode loss protection performance to iron and steel; And composite coating fragment-free track slab insulating reinforcing steel bars is outer, and namely fine and close epoxy coating thickness is 180-300 μ m, and it has good isolated corrosive medium and insulation protection effect.
Therefore, composite coating fragment-free track slab insulating reinforcing steel bars of the present invention can be avoided the inner circuit loop that forms of track plates, and the track plate insulation performance is good, adopt the guidance tape communicating requirement to satisfy high-speed railway, special in the rainstorm weather situation guidance tape impedance can satisfy the communication of high speed passenger dedicated railway.
Claims (2)
1. composite coating fragment-free track slab insulating reinforcing steel bars, it is characterized in that: hot dipping has zinc alloy layer on reinforcing bar, and the cover ring epoxy layer forms the composite coating reinforcing bar again outside zinc alloy layer; The alloy proportion of described zinc alloy layer is: zinc 89%-99%, aluminium 0.2%-10%, iron 0.001%-0.5%, tin 0.0001%-0.25%, copper 0.0001%-0.25%.
2. composite coating fragment-free track slab insulating reinforcing steel bars as claimed in claim 1, it is characterized in that: the thickness of described zinc alloy layer is 20-40 μ m; The epoxy resin layer thickness is 180-300 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104200008A CN102912692A (en) | 2012-10-29 | 2012-10-29 | Ballastless track slab insulating bar reinforcement with composite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104200008A CN102912692A (en) | 2012-10-29 | 2012-10-29 | Ballastless track slab insulating bar reinforcement with composite coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102912692A true CN102912692A (en) | 2013-02-06 |
Family
ID=47611244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104200008A Pending CN102912692A (en) | 2012-10-29 | 2012-10-29 | Ballastless track slab insulating bar reinforcement with composite coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN102912692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067267A1 (en) * | 2012-10-29 | 2014-05-08 | 厦门新钢金属制品有限公司 | Insulation steel bar with composite coating for gravelless rail board |
| CN113481453A (en) * | 2021-06-07 | 2021-10-08 | 北华航天工业学院 | Multi-system protective layer steel bar and preparation method thereof |
Citations (6)
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|---|---|---|---|---|
| CN1031724A (en) * | 1987-09-01 | 1989-03-15 | 马克斯艾歇尔钢铁冶炼公司 | Improve the treatment process of corrosion resistance of rolled steel |
| JPH0873999A (en) * | 1994-09-07 | 1996-03-19 | Nkk Corp | Zinc-aluminum alloy coated steel sheet excellent in rusting resistance |
| CN2853877Y (en) * | 2005-09-26 | 2007-01-03 | 厦门新钢金属制品有限公司 | Reinforced bar for highspeed railway rail |
| CN201817969U (en) * | 2010-10-19 | 2011-05-04 | 厦门新钢金属制品有限公司 | Improved structure of epoxy steel bar |
| CN102453817A (en) * | 2010-10-28 | 2012-05-16 | 广东金亿合金制品有限公司 | Zinc alloy special for stamping and manufacturing method thereof |
| CN202273172U (en) * | 2011-09-21 | 2012-06-13 | 厦门新钢金属制品有限公司 | A prestressed wire |
-
2012
- 2012-10-29 CN CN2012104200008A patent/CN102912692A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031724A (en) * | 1987-09-01 | 1989-03-15 | 马克斯艾歇尔钢铁冶炼公司 | Improve the treatment process of corrosion resistance of rolled steel |
| JPH0873999A (en) * | 1994-09-07 | 1996-03-19 | Nkk Corp | Zinc-aluminum alloy coated steel sheet excellent in rusting resistance |
| CN2853877Y (en) * | 2005-09-26 | 2007-01-03 | 厦门新钢金属制品有限公司 | Reinforced bar for highspeed railway rail |
| CN201817969U (en) * | 2010-10-19 | 2011-05-04 | 厦门新钢金属制品有限公司 | Improved structure of epoxy steel bar |
| CN102453817A (en) * | 2010-10-28 | 2012-05-16 | 广东金亿合金制品有限公司 | Zinc alloy special for stamping and manufacturing method thereof |
| CN202273172U (en) * | 2011-09-21 | 2012-06-13 | 厦门新钢金属制品有限公司 | A prestressed wire |
Non-Patent Citations (2)
| Title |
|---|
| 于民治等: "《钢材产品手册》", 31 January 2011, article "JG3042-1997环氧树脂涂层钢筋" * |
| 吴媛等: "预应力钢筋防锈技术探讨", 《新型建筑材料》, no. 7, 31 July 2008 (2008-07-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067267A1 (en) * | 2012-10-29 | 2014-05-08 | 厦门新钢金属制品有限公司 | Insulation steel bar with composite coating for gravelless rail board |
| CN113481453A (en) * | 2021-06-07 | 2021-10-08 | 北华航天工业学院 | Multi-system protective layer steel bar and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |