CN105624605A - Zinc grease anti-corrosion steel pipe rod and coating method thereof - Google Patents
Zinc grease anti-corrosion steel pipe rod and coating method thereof Download PDFInfo
- Publication number
- CN105624605A CN105624605A CN201610156497.5A CN201610156497A CN105624605A CN 105624605 A CN105624605 A CN 105624605A CN 201610156497 A CN201610156497 A CN 201610156497A CN 105624605 A CN105624605 A CN 105624605A
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- China
- Prior art keywords
- zinc
- steel pipe
- steel tube
- tube bar
- spraying
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Coating By Spraying Or Casting (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention provides a zinc grease anti-corrosion steel pipe rod and a coating method thereof. The zinc grease anti-corrosion steel pipe rod comprises a steel pipe body, a zinc layer, a corrosion resistant layer and a cover surface layer, wherein the steel pipe body is sequentially coated with the zinc layer, the corrosion resistant layer and the cover surface layer. The coating method of the zinc grease anti-corrosion steel pipe rod includes the following steps of pretreatment, component processing, secondary treatment, zinc layer spraying, corrosion resistant layer spraying and cover surface layer spraying. According to the zinc grease anti-corrosion steel pipe rod and the coating method thereof, the technical problems that in the prior art, an anti-corrosion method of a steel pipe rod product is restrained by equipment, component deformation is large, the corrosion resistance effect is poor, and the service life is short are solved.
Description
Technical field
The present invention relates to anti-corrosion of metal field, it is specifically related to a kind of zinc fat anti-corrosive steel tube bar and coating process thereof.
Background technology
At present, the anticorrosion of China's power transmission line steel pipe rod product all adopts galvanizing technology to carry out, cost is higher and large diameter steel pipe structure product by the restriction of galvanizing equipment, this technology cannot be implemented. Due to steel pipe bar product be welded as main structure product, shape is longer, body of rod interconnecting piece is more. There is the process of heating and cooling through galvanizing processes, cause part distortion bigger. Machinery is corrected straightening and is difficult to reach requirement. Utilize Flame straightening that the preservative coat of the body of rod and outward appearance can be made again to destroy serious, directly reduce preservative effect and work-ing life.
Summary of the invention
For the steel pipe bar product anti-corrosion method that solves prior art by equipment restriction, part distortion relatively big, preservative effect and work-ing life difference technical problem, the present invention provides a kind of zinc fat anti-corrosive steel tube bar and the coating process thereof of avoiding the problems referred to above.
A kind of zinc fat anti-corrosive steel tube bar, comprises steel pipe body, zinc layers, anticorrosion layer and lid surface layer, and described zinc layers, described anticorrosion layer and described lid surface layer are coated on described steel pipe body successively.
A kind of zinc fat anti-corrosive steel tube bar coating process, specifically comprises the following steps:
Step 1: pre-treatment: the steel plate providing a suitable dimension, carries out Shot Blasting, removes the grease of metallic surface, dirt, oxide skin etc.;
Step 2: component processing: bend, weld described steel plate, obtained steel pipe;
Step 3: secondary treatment: described steel pipe is carried out Shot Blasting, removes the pollution adding in described step 2 and producing man-hour;
Step 4: spraying zinc layers: utilize electric arc spraying equipment, sprays zinc layers in described steel tube surface;
Step 5: spraying anticorrosion layer: at described zinc layers surface spraying corrosion resistance coating, and carry out flowing sealing treatment flat, solidification successively, form anticorrosion layer;
Step 6: spraying lid surface layer: after described step 5 completes, again spray lid coating materials on described anticorrosion layer surface, forms lid surface layer.
In the better embodiment of one of zinc fat anti-corrosive steel tube bar coating process provided by the invention, in described step 1 after Shot Blasting, the derusting grade of described steel plate reaches sa21/2, and surfaceness reaches RZ40-80um.
In the better embodiment of one of zinc fat anti-corrosive steel tube bar coating process provided by the invention, after zinc layers described in described step 4 has sprayed, carrying out thickness and sticking power detection, below standard parts repeat described step 4.
In the better embodiment of one of zinc fat anti-corrosive steel tube bar coating process provided by the invention, corrosion resistance coating described in described step 5 is base-material by the acrylic resin containing hydroxyl and cyanic acid ester affixture, adding oil paint auxiliary agent, the adding proportion of described base-material and described auxiliary agent is 10:3.
In the better embodiment of one of zinc fat anti-corrosive steel tube bar coating process provided by the invention, described auxiliary agent comprises flow agent, defoamer, adhesion promoter, solidifying agent, siccative, membrane-forming agent and Polyurethane solvent.
In the better embodiment of one of zinc fat anti-corrosive steel tube bar coating process provided by the invention, in described step 5, a small amount of thinner should be added when spraying described corrosion resistance coating, and spray two times.
In the better embodiment of one of zinc fat anti-corrosive steel tube bar coating process provided by the invention, described in described step 6, lid coating materials comprises described corrosion resistance coating, and adds aluminium silver powder pigment and thinner, and the adding proportion of the two and described corrosion resistance coating is 1:4.
Compared to prior art, described zinc fat anti-corrosive steel tube bar provided by the invention and coating process thereof have following useful effect:
One, described zinc fat anti-corrosive steel tube bar coating process does not restrict by equipment in the process of processing large diameter steel pipe bar structure product coating, makes the anticorrosive quality of large-scale steel pipe structure product have qualitative leap.
Two, described zinc fat anti-corrosive steel tube bar coating process operates without the need to heating, cooling etc. in the course of processing, avoids part distortion, eliminates the operations such as machinery aligning or flame aligning, not only simplify and improve production efficiency, and enhance antiseptic property.
Three, described zinc fat anti-corrosive steel tube bar coating process adopts coating antiseptic technology to reduce manufacturing cost, facilitates the technical progress of the anticorrosion variation of relevant industries, has pulled technological innovation and the development of the related industrieies such as protective system.
Four, described zinc fat anti-corrosive steel tube bar achieves the combination of electric arc spraying zinc layers and seal coat, and coating has excellent sticking power and closed performance, and has the feature of impermeability, weathering resistance, resistance to molten property, favorable anti-corrosion effect, long service life.
Accompanying drawing explanation
In order to the technical scheme being illustrated more clearly in the embodiment of the present invention, below the accompanying drawing used in embodiment being described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the sectional view of zinc fat anti-corrosive steel tube bar provided by the invention;
Fig. 2 is the process flow sheet of zinc fat anti-corrosive steel tube bar coating process provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the sectional view of zinc fat anti-corrosive steel tube bar provided by the invention, and Fig. 2 is the process flow sheet of zinc fat anti-corrosive steel tube bar coating process provided by the invention.
Described zinc fat anti-corrosive steel tube bar coating process specifically comprises the following steps:
S1: pre-treatment: the steel plate providing a suitable dimension, carries out Shot Blasting, removes the grease of metallic surface, dirt, oxide skin etc. so that it is derusting grade reaches sa21/2, and surfaceness reaches RZ40-80um;
S2: component processing: bend, weld described steel plate, obtained steel pipe 11, this step is consistent with prior art, does not repeat;
S3: secondary treatment: described steel pipe is carried out Shot Blasting, removes the pollution adding in described S2 and producing man-hour;
S4: spraying zinc layers: utilize electric arc spraying equipment, in described steel pipe 11 surface spraying zinc layers 12;
After having sprayed, described zinc layers 12 is carried out thickness and sticking power detection, if below standard, repeats described S4;
S5: spraying anticorrosion layer: utilize the acrylic resin containing hydroxyl and cyanic acid ester affixture to be base-material, flow agent, defoamer, adhesion promoter, solidifying agent, siccative, membrane-forming agent and Polyurethane solvent is utilized to be auxiliary agent, add a small amount of thinner again to increase its perviousness, synthesis corrosion resistance coating, and it is sprayed at described zinc layers 12 surface;
Carry out flowing sealing treatment flat, solidification successively, make the gap of described zinc layers 12, hole carry out filling and flow flat closing, form the tectum of primer coating, completely cut off air, avoid being oxidized;
Ensureing coat-thickness > 30um, drying more than at least 24 hours, sprays the second layer again after parching completely, forms anticorrosion layer 13;
S6: spraying lid surface layer: on the basis of described corrosion resistance coating, adds aluminium silver powder pigment and thinner, and the two is 1:4 with the adding proportion of described corrosion resistance coating, synthesis lid coating materials, and is sprayed at described anticorrosion layer 13 surface, formation lid surface layer 14.
Final obtained described zinc layers 12, described anticorrosion layer 13 and described lid surface layer 14 are coated on the zinc fat anti-corrosive steel tube bar 1 of described steel pipe 11 body of rod successively.
Compared to prior art, described zinc fat anti-corrosive steel tube bar 1 provided by the invention and coating process thereof have following useful effect:
One, described zinc fat anti-corrosive steel tube bar coating process does not restrict by equipment in the process of processing large diameter steel pipe bar structure product coating, makes the anticorrosive quality of large-scale steel pipe structure product have qualitative leap.
Two, described zinc fat anti-corrosive steel tube bar coating process operates without the need to heating, cooling etc. in the course of processing, avoids part distortion, eliminates the operations such as machinery aligning or flame aligning, not only simplify and improve production efficiency, and enhance antiseptic property.
Three, described zinc fat anti-corrosive steel tube bar coating process adopts coating antiseptic technology to reduce manufacturing cost, facilitates the technical progress of the anticorrosion variation of relevant industries, has pulled technological innovation and the development of the related industrieies such as protective system.
Four, described zinc fat anti-corrosive steel tube bar 1 achieves the combination of electric arc spraying zinc layers and seal coat, and coating has excellent sticking power and closed performance, and has the feature of impermeability, weathering resistance, resistance to molten property, favorable anti-corrosion effect, long service life.
The foregoing is only embodiments of the invention; not thereby the patent scope of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all it is included in reason within the scope of patent protection of the present invention.
Claims (8)
1. a zinc fat anti-corrosive steel tube bar, it is characterised in that: comprising steel pipe body, zinc layers, anticorrosion layer and lid surface layer, described zinc layers, described anticorrosion layer and described lid surface layer are coated on described steel pipe body successively.
2. a zinc fat anti-corrosive steel tube bar coating process, it is characterised in that, specifically comprise the following steps:
Step 1: pre-treatment: the steel plate providing a suitable dimension, carries out Shot Blasting, removes the grease of metallic surface, dirt, oxide skin etc.;
Step 2: component processing: bend, weld described steel plate, obtained steel pipe;
Step 3: secondary treatment: described steel pipe is carried out Shot Blasting, removes the pollution adding in described step 2 and producing man-hour;
Step 4: spraying zinc layers: utilize electric arc spraying equipment, sprays zinc layers in described steel tube surface;
Step 5: spraying anticorrosion layer: at described zinc layers surface spraying corrosion resistance coating, and carry out flowing sealing treatment flat, solidification successively, form anticorrosion layer;
Step 6: spraying lid surface layer: after described step 5 completes, again spray lid coating materials on described anticorrosion layer surface, forms lid surface layer.
3. zinc fat anti-corrosive steel tube bar coating process according to claim 2, it is characterised in that: in described step 1 after Shot Blasting, the derusting grade of described steel plate reaches sa21/2, surfaceness reaches RZ40-80um.
4. zinc fat anti-corrosive steel tube bar coating process according to claim 2, it is characterised in that: after zinc layers described in described step 4 has sprayed, carrying out thickness and sticking power detection, below standard parts repeat described step 4.
5. zinc fat anti-corrosive steel tube bar coating process according to claim 2, it is characterized in that: corrosion resistance coating described in described step 5 is base-material by the acrylic resin containing hydroxyl and cyanic acid ester affixture, adding oil paint auxiliary agent, the adding proportion of described base-material and described auxiliary agent is 10:3.
6. zinc fat anti-corrosive steel tube bar coating process according to claim 5, it is characterised in that: described auxiliary agent comprises flow agent, defoamer, adhesion promoter, solidifying agent, siccative, membrane-forming agent and Polyurethane solvent.
7. zinc fat anti-corrosive steel tube bar coating process according to claim 2, it is characterised in that: in described step 5, a small amount of thinner should be added when spraying described corrosion resistance coating, and spray two times.
8. zinc fat anti-corrosive steel tube bar coating process according to claim 2, it is characterised in that: described in described step 6, lid coating materials comprises described corrosion resistance coating, and adds aluminium silver powder pigment and thinner, and the adding proportion of the two and described corrosion resistance coating is 1:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156497.5A CN105624605A (en) | 2016-03-18 | 2016-03-18 | Zinc grease anti-corrosion steel pipe rod and coating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156497.5A CN105624605A (en) | 2016-03-18 | 2016-03-18 | Zinc grease anti-corrosion steel pipe rod and coating method thereof |
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| CN105624605A true CN105624605A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610156497.5A Pending CN105624605A (en) | 2016-03-18 | 2016-03-18 | Zinc grease anti-corrosion steel pipe rod and coating method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107385488A (en) * | 2017-07-19 | 2017-11-24 | 池州市超杰机电设备有限公司 | A kind of multicoat ironware and anticorrosion process |
| CN107869450A (en) * | 2016-09-26 | 2018-04-03 | 上海海立电器有限公司 | Compressor and its processing method |
| CN109468063A (en) * | 2018-11-07 | 2019-03-15 | 赤峰广圆电力铁塔制造有限公司 | Zinc rouge anticorrosive steel tube rod and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3429962A (en) * | 1965-12-01 | 1969-02-25 | Gen Electric | Method of forming a metallic oxide article |
| CN101451243A (en) * | 2008-12-31 | 2009-06-10 | 江苏中矿大正表面工程技术有限公司 | Method and process of steel structure arc spraying composite corrosion proof coating system |
| CN101649947A (en) * | 2009-09-08 | 2010-02-17 | 新兴铸管股份有限公司 | Tube material with aluminum powder coloring anticorrosion coating and manufacture method |
| 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 |
| CN104098994A (en) * | 2013-04-02 | 2014-10-15 | 江苏国松特种涂料有限公司 | Anticorrosion paint primer-finish composition |
| CN203994975U (en) * | 2014-05-28 | 2014-12-10 | 博罗县石湾美源涂料有限公司 | A kind of long-lasting protection composite coating |
| CN104583339A (en) * | 2012-08-10 | 2015-04-29 | 太阳化学公司 | Color travel oxidized aluminum pigments |
-
2016
- 2016-03-18 CN CN201610156497.5A patent/CN105624605A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3429962A (en) * | 1965-12-01 | 1969-02-25 | Gen Electric | Method of forming a metallic oxide article |
| CN101451243A (en) * | 2008-12-31 | 2009-06-10 | 江苏中矿大正表面工程技术有限公司 | Method and process of steel structure arc spraying composite corrosion proof coating system |
| CN101649947A (en) * | 2009-09-08 | 2010-02-17 | 新兴铸管股份有限公司 | Tube material with aluminum powder coloring anticorrosion coating and manufacture method |
| 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 |
| CN104583339A (en) * | 2012-08-10 | 2015-04-29 | 太阳化学公司 | Color travel oxidized aluminum pigments |
| CN104098994A (en) * | 2013-04-02 | 2014-10-15 | 江苏国松特种涂料有限公司 | Anticorrosion paint primer-finish composition |
| CN203994975U (en) * | 2014-05-28 | 2014-12-10 | 博罗县石湾美源涂料有限公司 | A kind of long-lasting protection composite coating |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869450A (en) * | 2016-09-26 | 2018-04-03 | 上海海立电器有限公司 | Compressor and its processing method |
| US11293423B2 (en) | 2016-09-26 | 2022-04-05 | Shanghai Highly Electrical Appliances Co., Ltd. | Compressor and processing method therefor |
| CN107385488A (en) * | 2017-07-19 | 2017-11-24 | 池州市超杰机电设备有限公司 | A kind of multicoat ironware and anticorrosion process |
| CN109468063A (en) * | 2018-11-07 | 2019-03-15 | 赤峰广圆电力铁塔制造有限公司 | Zinc rouge anticorrosive steel tube rod and preparation method thereof |
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Application publication date: 20160601 |