CN103233218A - Zinc and epoxy double coating reinforcing steel bar - Google Patents
Zinc and epoxy double coating reinforcing steel bar Download PDFInfo
- Publication number
- CN103233218A CN103233218A CN2013101509921A CN201310150992A CN103233218A CN 103233218 A CN103233218 A CN 103233218A CN 2013101509921 A CN2013101509921 A CN 2013101509921A CN 201310150992 A CN201310150992 A CN 201310150992A CN 103233218 A CN103233218 A CN 103233218A
- Authority
- CN
- China
- Prior art keywords
- zinc
- epoxy
- layer
- coating
- steel bar
- 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.)
- Pending
Links
Images
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to zinc and epoxy double coating reinforcing steel bar and a processing method thereof. According to the zinc and epoxy double coating reinforcing steel bar, a thermally sprayed bottom zinc layer is arranged on a central reinforcing steel bar, wherein the surface layer on the zinc layer is a statically sprayed epoxy coating. Finally, a zinc and epoxy double coating is formed on the reinforcing steel bar. The zinc and epoxy double coating reinforcing steel bar is an effective measure for overcoming adverse effect caused by coating damage and leakage of micropores and ensuring the service life of the building. The zinc and epoxy double coating reinforcing steel bar is prepared by the following steps of: firstly spraying a zinc layer on the surface of the treated reinforcing steel bar before spraying epoxy powder; then, spraying the epoxy coating conventionally on the zinc layer; and finally, forming the zinc and epoxy double coating reinforcing steel bar. The zinc layer has the join effect of mechanical shielding and cathode protection. When the zinc layer is damaged and a medium is corroded, the metal spraying layer is scarified to prevent the steel substrate from being corroded. The zinc layer can effectively eliminate the adverse effect caused by damage and defect of the epoxy coating, and the anti-corrosive capacity is further ensured, and the service life of the building is further ensured.
Description
Technical field
The invention belongs to the erosion shield technical field, be specifically related to zinc, the two coated reinforcements of epoxy and working method thereof.
Background technology
The epoxy coating reinforcing bar is to adopt electrostatic coating method, epoxy powder is sprayed on a kind of reinforcing bar with coating of the surface production of common Ribbed Bar or ordinary light Round Steel Bar.Because epoxy resin powder coating is one of best protective system of acid-proof in numerous coated materials, alkali characteristic, can effectively intercept corrosive deposit, the reinforcing bar with epoxy resin powder coating is applied on the surface, and its resistance to corrosion obviously improves, and effectively prolongs the work-ing life of buildings.By Electrostatic Spray Technology, form evenly, fine and closely be combined firm epoxy coat with reinforcing bar, for other anti-corrosion measure, tool technology, performance and cost advantage.Therefore the development space of its domestic and international market is very wide.The epoxy resin powder coating reinforcing bar is widely used in being in industry in wet environment or the corrosive medium and covil construction, general structures and road, bridge, harbour, in the skeleton construction of harbour etc.
But, coating may appear damaging in the lifting of epoxy coating reinforcing bar, processing, carrying and colligation and the concrete depositing, and epoxy coat is once damage, and resistance to corrosion reduces, and directly influences the work-ing life of buildings.In addition, unavoidably have the micropore of holiday during the coating epoxy coating, the existence of holiday micropore can reduce resistance to corrosion equally, influences the work-ing life of buildings.Though can take reclamation activities to overcome coating damage and the caused detrimentally affect of holiday micropore, but reclamation activities one is cumbersome, expend man-hour, increase cost, moreover can not absolutely eliminate this reduction epoxy coating reinforcing bar resistance to corrosion, shorten the buildings detrimentally affect in work-ing life.Therefore, be necessary to take more efficiently measure, overcome coating damage and the caused detrimentally affect of holiday micropore fully, the buildings work-ing life of guaranteeing to use the epoxy coating reinforcing bar.
Summary of the invention
The present invention is based on the existing existing problem of epoxy coating reinforcing bar, a kind of zinc, the two coated reinforcements of epoxy and complete processing thereof are provided.
Technical scheme of the present invention is:
Reinforcing bar at the center has the bottom zinc layer of thermospray, and the surface layer on the zinc layer is the epoxy coat of electrostatic spraying; Finally form zinc, the two coatings of epoxy at reinforcing bar.
Using zinc, the two coated reinforcements of epoxy is to overcome coating damage and the caused detrimentally affect of holiday micropore, guarantees the buildings effective measure in work-ing life.So-called zinc, the two coated reinforcements of epoxy are to spray before the epoxy powder, spray one deck zinc layer earlier at the rebar surface of handling well, spray epoxy coat afterwards on the zinc layer more routinely, finally form zinc, the two coated reinforcements of epoxy.The zinc layer has played mechanical masking and galvanic protection combined action, and when coating generation breakage, when corrosive medium exists, sprayed metal coating can be sacrificed oneself, and the protection steel substrate does not corrode.The zinc layer can eliminate effectively that epoxy coat damages and the caused detrimentally affect of defective, and its resistance to corrosion is more guaranteed, more can guarantee buildings work-ing life.
Description of drawings
Fig. 1 is structural representation of the present invention,
Fig. 2 is complete processing synoptic diagram of the present invention.
Among Fig. 1: the 1st, reinforcing bar, the 2nd, zinc layer, the 3rd, epoxy coat.
Embodiment
Referring to Fig. 1, zinc of the present invention, the two coated reinforcements of epoxy, its center is reinforcing bar 1, is coated with zinc layer 2 as bottom outside reinforcing bar 1, is coated with epoxy coat 3 as surface layer outside the zinc layer 2; Reinforcing bar 1, zinc layer 2 and epoxy coat 3 are closely as one.
The present invention adopts heat spraying method that liquid metal zinc is sprayed on reinforcing bar 1 surface of cleaning earlier, forms bottom zinc layer 2, zinc layer 2 thickness 50～100 μ m; Surface layer epoxy coating 3 is coated in bottom zinc layer 2 surface, surface layer epoxy coat 3 thickness 150～350 μ m.Bottom zinc layer 2 is bonded together with surface layer epoxy coat 3, forms the two coatings of zinc, epoxy that thickness is 200～450 μ m jointly, and zinc, the two coatings of epoxy form zinc, the two coated reinforcements of epoxy with reinforcing bar 1.
Wherein: described bottom zinc layer 2 material are the zinc silk of zinc content (weight) 〉=99.0%.Described surface layer epoxy coat 3 materials are the thermosetting epoxy resin powder coating.
Specify zinc, the two coated reinforcement complete processings of epoxy below.
Zinc, the two coated reinforcement machining processes of epoxy are as shown in Figure 2.
1, rebar surface cleaning and check: rebar surface to be applied is cleared up, removed the things such as grease, moisture, dust, dirt, oxide film and rust of rebar surface; Assembly surface after the check cleaning confirms that the things such as grease, moisture, dust, dirt, oxide film and rust of assembly surface are removed totally the cleaning again of disqualified upon inspection.
2, bottom zinc layer spraying: the heating reinforcing bar, the reusable heat source is melted into the droplet shape with the zinc silk, is sprayed onto treated rebar surface more rapidly, and forming thickness is the zinc layer spelter coating of 50～100 μ m.
3, surface layer epoxy coat spraying: adopt electrostatic coating method to carry out the spraying of powdered epoxy coating after having sprayed the zinc layer immediately, coat-thickness is about the 150-350 micron;
A whole set of coat system is disposable finishes continuously, and forming thickness is the two coatings of zinc, epoxy of 200～450 μ m; Two coated reinforcements form zinc, the two coated reinforcements of epoxy together.
4, cooling: water is forced below the cooling zinc, the two coated reinforcements to 100 of epoxy ℃.
5, check: the two coated reinforcement quality of zinc, epoxy to cooling detect, and qualified then can the packing dispatched from the factory, otherwise need repair.
Now with the method for making the two coated thread reinforcing bars of zinc, epoxy with Φ 32 Twisted Steels as specific embodiment, the present invention is further specified:
1, Φ 32 Twisted Steels enter production line, at first remove surface irregularities, loose scale, greasy dirt etc., carry out sandblasting, make reinforcing bar expose the iron and steel true qualities.
2, reinforcing bar enters the heating in medium frequency stove then, is heated to 200～230 ℃.
3, at spray booth, with thermal source the zinc silk of zinc content (weight) 〉=99.0% is melted into the droplet shape, be sprayed onto treated Twisted Steel surface more rapidly, forming thickness is the zinc coating layer of 50～100 μ m;
4, adopt electrostatic coating method that the thermosetting epoxy resin powder coating evenly is sprayed on the zinc laminar surface after having sprayed the zinc layer immediately, coat-thickness is the 150-350 micron.
A whole set of coating spraying process is disposable to be finished continuously, and forming thickness is the two coatings of zinc, epoxy of 200～450 μ m; Two coatings form zinc, the two coated thread reinforcing bars of epoxy with Φ 32 Twisted Steels.
4, force to send to check then below the cooling zinc, the two coated thread reinforcing bars to 100 of epoxy ℃ with cold water at last, eligible is zinc, the two coated thread reinforcing bar qualified product of epoxy, warehouse-in, and the person of not conforming to repairs or returns coating again.
Claims (7)
1. a zinc, the two coated reinforcements of epoxy, it is characterized in that: the reinforcing bar (1) at the center has the bottom zinc layer (2) of thermospray, and the surface layer on the zinc layer (2) is the epoxy coat (3) of electrostatic spraying; Finally form zinc, the two coatings of epoxy at reinforcing bar (1).
2. two coated reinforcements of zinc according to claim 1, epoxy, it is characterized in that: described zinc layer (2) thickness is 50～100 μ m.
3. according to claim 1 pair of coated reinforcement, it is characterized in that: described epoxy coat (3) thickness is 150～350 μ m.
4. according to claim 2 or 3 described pairs of coated reinforcements, it is characterized in that: described zinc, the two total coating thicknesses of epoxy are 200～450 μ m.
5. the making method of a zinc, the two coated reinforcements of epoxy is characterized in that step is as follows:
1), rebar surface cleaning and check: rebar surface to be applied is cleared up, removed the things such as grease, moisture, dust, dirt, oxide film and rust of rebar surface; Assembly surface after the check cleaning confirms that the things such as grease, moisture, dust, dirt, oxide film and rust of assembly surface are removed totally the cleaning again of disqualified upon inspection;
2), bottom zinc layer spraying: heat reinforcing bar, the reusable heat source is melted into the droplet shape with the zinc silk, is sprayed onto treated rebar surface more rapidly, and forming thickness is the zinc layer spelter coating of 50～100 μ m;
3), surface layer epoxy coat spraying: adopt electrostatic coating method to carry out the spraying of powdered epoxy coating after having sprayed the zinc layer immediately, coat-thickness is the 150-350 micron;
A whole set of coat system is disposable finishes continuously, and forming thickness is the two coatings of zinc, epoxy of 200～450 μ m; Two coated reinforcements form zinc, the two coated reinforcements of epoxy together;
4), cooling: water is forced below the cooling zinc, the two coated reinforcements to 100 of epoxy ℃;
5), check: the two coated reinforcement quality of zinc, epoxy to cooling detect, and qualified then can the packing dispatched from the factory, otherwise need repair.
6. according to claim 5 pair of coated reinforcement is characterized in that: step 2) in, reinforcing bar enters the heating in medium frequency stove, is heated to 200～230 ℃.
7. according to claim 5 pair of coated reinforcement is characterized in that: step 2) in, zinc content (weight) 〉=99.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101509921A CN103233218A (en) | 2013-04-27 | 2013-04-27 | Zinc and epoxy double coating reinforcing steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101509921A CN103233218A (en) | 2013-04-27 | 2013-04-27 | Zinc and epoxy double coating reinforcing steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103233218A true CN103233218A (en) | 2013-08-07 |
Family
ID=48881282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101509921A Pending CN103233218A (en) | 2013-04-27 | 2013-04-27 | Zinc and epoxy double coating reinforcing steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103233218A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216198A (en) * | 2016-08-30 | 2016-12-14 | 宁波科鑫腐蚀控制工程有限公司 | A kind of method for improving of epoxy-coated reinforcement production line end performance |
| CN106269446A (en) * | 2016-10-07 | 2017-01-04 | 柳州欧维姆机械股份有限公司 | High anticorrosion major diameter high-strength screw-thread steel rod and preparation method thereof |
| JP2020019977A (en) * | 2018-07-30 | 2020-02-06 | 前田建設工業株式会社 | Metal based corrosion resistant coating improving corrosion resistance of reinforcement, and method for forming the same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117699A (en) * | 2006-08-04 | 2008-02-06 | 徐州正菱涂装有限公司 | Protection method of spraying metal for coating edge, corner and seam of steel component |
| CN101122019A (en) * | 2007-09-06 | 2008-02-13 | 王家德 | Anticorrosion technology for composite coating of metal thermal spraying and powder coating electrostatic spraying |
| CN201473946U (en) * | 2009-07-23 | 2010-05-19 | 江苏中矿大正表面工程技术有限公司 | Composite protective steel pile structure |
| CN101725268A (en) * | 2009-11-19 | 2010-06-09 | 辽宁万事达电力制造安装有限公司 | Long-life anti-corrosive layer for transmission tower and method for making same |
| CN201520940U (en) * | 2009-07-23 | 2010-07-07 | 江苏中矿大正表面工程技术有限公司 | Composite coating bridge extension joint structure |
| CN201649136U (en) * | 2010-04-28 | 2010-11-24 | 清华大学深圳研究生院 | Composite coating for long-term corrosion resistance of PHC tubular pipe metal end |
| CN102211080A (en) * | 2010-04-01 | 2011-10-12 | 上海建冶科技工程股份有限公司 | Anticorrosion method of composite coating positioned on surface of steel structure |
| CN102278568A (en) * | 2011-08-19 | 2011-12-14 | 新兴铸管股份有限公司 | Ductile cast iron pipe with waterproof protective layer and production process thereof |
| CN202176878U (en) * | 2011-08-19 | 2012-03-28 | 新兴铸管股份有限公司 | Ductile cast iron pipe with waterproof protective layer |
| CN102518333A (en) * | 2011-12-30 | 2012-06-27 | 山东省呈祥电工电气有限公司 | Pollution flashover-prevention, corrosion-prevention and freezing-prevention electric tower and surface treatment method thereof |
-
2013
- 2013-04-27 CN CN2013101509921A patent/CN103233218A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117699A (en) * | 2006-08-04 | 2008-02-06 | 徐州正菱涂装有限公司 | Protection method of spraying metal for coating edge, corner and seam of steel component |
| CN101122019A (en) * | 2007-09-06 | 2008-02-13 | 王家德 | Anticorrosion technology for composite coating of metal thermal spraying and powder coating electrostatic spraying |
| CN201473946U (en) * | 2009-07-23 | 2010-05-19 | 江苏中矿大正表面工程技术有限公司 | Composite protective steel pile structure |
| CN201520940U (en) * | 2009-07-23 | 2010-07-07 | 江苏中矿大正表面工程技术有限公司 | Composite coating bridge extension joint structure |
| CN101725268A (en) * | 2009-11-19 | 2010-06-09 | 辽宁万事达电力制造安装有限公司 | Long-life anti-corrosive layer for transmission tower and method for making same |
| CN102211080A (en) * | 2010-04-01 | 2011-10-12 | 上海建冶科技工程股份有限公司 | Anticorrosion method of composite coating positioned on surface of steel structure |
| CN201649136U (en) * | 2010-04-28 | 2010-11-24 | 清华大学深圳研究生院 | Composite coating for long-term corrosion resistance of PHC tubular pipe metal end |
| CN102278568A (en) * | 2011-08-19 | 2011-12-14 | 新兴铸管股份有限公司 | Ductile cast iron pipe with waterproof protective layer and production process thereof |
| CN202176878U (en) * | 2011-08-19 | 2012-03-28 | 新兴铸管股份有限公司 | Ductile cast iron pipe with waterproof protective layer |
| CN102518333A (en) * | 2011-12-30 | 2012-06-27 | 山东省呈祥电工电气有限公司 | Pollution flashover-prevention, corrosion-prevention and freezing-prevention electric tower and surface treatment method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216198A (en) * | 2016-08-30 | 2016-12-14 | 宁波科鑫腐蚀控制工程有限公司 | A kind of method for improving of epoxy-coated reinforcement production line end performance |
| CN106216198B (en) * | 2016-08-30 | 2020-01-31 | 宁波科鑫腐蚀控制工程有限公司 | Method for improving performance of end part of epoxy coating steel bar production line |
| CN106269446A (en) * | 2016-10-07 | 2017-01-04 | 柳州欧维姆机械股份有限公司 | High anticorrosion major diameter high-strength screw-thread steel rod and preparation method thereof |
| JP2020019977A (en) * | 2018-07-30 | 2020-02-06 | 前田建設工業株式会社 | Metal based corrosion resistant coating improving corrosion resistance of reinforcement, and method for forming the same |
| JP7158197B2 (en) | 2018-07-30 | 2022-10-21 | 前田建設工業株式会社 | METHOD FOR FORMING METAL-BASED CORROSION-PROOF COATING WITH IMPROVED CORROSION RESISTANCE OF REINFORCEMENT |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107061929B (en) | steel circulating water pipe anti-corrosion method | |
| CN103256435A (en) | Double-coating steel tube | |
| CN110787979A (en) | Steel structure corrosion prevention process | |
| CN103233218A (en) | Zinc and epoxy double coating reinforcing steel bar | |
| CN104259079B (en) | The pre-spraying coating process of steel bridge case beam cold spray zinc | |
| JP6441655B2 (en) | Ground treatment liquid, method for producing organic coated galvanized steel pipe using ground treatment liquid, and organic coated galvanized steel pipe | |
| CN112275592A (en) | Steel structure anti-corrosion treatment method | |
| CN102019267B (en) | Metal surface protective treatment method and system | |
| CN105586561A (en) | Steel structure anti-corrosion process | |
| CN101349364B (en) | Cable stand anti-corrosive process | |
| CN203221678U (en) | Zinc and epoxy double-coating steel bar | |
| CN104088370A (en) | High-strength bolt friction-type connecting structure and connection node performance optimizing method thereof | |
| CN105715910A (en) | Method for controlling corrosion of pipeline under insulating layer | |
| CN107552356A (en) | Process for surface preparation before the spray painting of the chemical pump pump housing | |
| CN107858075B (en) | Adhesive liquid and paint spraying method for applying adhesive liquid to surface of LED backboard | |
| JP2006233614A (en) | Reinforcing member coated with high adhesion corrosion-proof coat, and its manufacturing method | |
| CN102517574A (en) | Steel pipe surface treatment liquor and application method thereof | |
| CN2923742Y (en) | Sueprsonic-ceramic anti-corrosion coating for repairing reinforced welding part | |
| CN105603427B (en) | A kind of chemical etching agent and corrugated stainless steel tubing Coating Pretreatment method | |
| JP2002060963A (en) | Method for producing corrosion protective-converted steel | |
| KR200351898Y1 (en) | Metal panel with metallizing layer and ceramic coating layer | |
| CN104069995B (en) | A kind of means of defence for the system equipment that is corroded in sulphur fusion process | |
| CN108018459A (en) | A kind of processing technology of heat exchanger tube | |
| CN212827230U (en) | Anti-corrosion profile steel | |
| CN109796818A (en) | A kind of steel beam surface derusting anti-corrosive processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130807 |