CN101122019A - Metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique - Google Patents
Metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique Download PDFInfo
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- CN101122019A CN101122019A CNA2007100706397A CN200710070639A CN101122019A CN 101122019 A CN101122019 A CN 101122019A CN A2007100706397 A CNA2007100706397 A CN A2007100706397A CN 200710070639 A CN200710070639 A CN 200710070639A CN 101122019 A CN101122019 A CN 101122019A
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Abstract
The invention discloses a metal thermal spraying and powder coating electrostatic spraying composite coating anti-corrosion technology, which includes the following procedures: after a steel and iron work piece is deoiled, dried and pre-treated, the surface sand spraying treatment is conducted, with the rough degree of up to Ry40 to 100Mu m; the metal thermal spraying is conducted within 4 hours; after the thickness of a metal layer reaches 40 to 120Mu m, the powder coating electrostatic spraying is conducted, to make the thickness of a powder layer reach 60 to 120Mu m; and then the material is sent into a drying box for heating and solidification, so that the total thickness of the composite coating reaches 100 to 240Mu m. The composite coating treated by the technology has less thickness and stronger anti-corrosion than those of common coating, and is characterized by water resistance, impact resistance, weather resistance, long-lasting protection, long anti-corrosive service life, smooth appearance, environmental protection, cleanness, etc.
Description
Technical field
The present invention relates to a kind of metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique.
Background technology
At present, metallic corrosion is the common problem during steel construction uses, and particularly has the steel structural part of higher requirement for anticorrosion in indoor and outdoor, because its outward appearance and environmental requirement be than higher, existing method difficulty can meet the demands.The technology of using present thermospray to add the oil spout lacquer manufactures a product, and outward appearance and environmental protection aspect difficulty reach requirement.Add workmanship of spraying plastics with phosphatization and manufacture a product, anticorrosion life-span difficulty meets the demands.
Summary of the invention
In order to address the above problem; a kind of metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique have been the object of the present invention is to provide; compound coating is than next thinner of common coating and erosion resistance is stronger after this art breading, has water-fast, shock-resistant, weather-proof, long-effective protection, characteristics such as the anticorrosion life-span is long, outward appearance is bright and clean, environment-protecting clean.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
A kind of metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique comprise the steps,
(1) after iron and steel parts removes the oil drying pre-treatment, carry out surface sand-blasting and handle, roughness reaches Ry40-100 μ m;
Carry out metal thermal spraying in (2) 4 hours, after metal layer thickness reaches 40～120 μ m, carry out the powder coating electrostatic spraying again, make powder bed thickness reach 60～120 μ m;
(3) send into baking oven for heating then and solidify, make the compound coating total thickness reach 100～240 μ m.
Described metal thermal spraying adopts electric arc spraying or flame plating.Wherein electric arc spraying is that two wires are close, produces arc-over, the method that metallics utilizes high-pressure air to take out of; Flame plating is to utilize the burning of oxygen and acetylene gas to take the method for metallics simultaneously out of.
The used material of described sandblasting adopts emergy, ferrochrome sand, a kind of in the copper ore.
Metal in the described metal thermal spraying adopts zinc, aluminium, aluminium zinc, rare earth aluminium alloy, stainless steel, copper, chromium, a kind of in the nickel.
The powder of described powder coating electrostatic spraying adopts epoxy powder, polyester resin powder, epoxy polyester resin powder, a kind of in the polyethylene resin powder.
Thermospray is that coated material is heated to fusion or semi-melting state, by means of flame stream or high-speed gas it is atomized simultaneously, and promotes particle spraying after these atomizings to matrix surface, is deposited as the technology of the coating with certain function.
Electrostatic spraying utilizes high pressure static electricity electricity sunshine principle of electric field, metal diversion cup on the lance head connects high voltage negative, coated workpiece grounding forms positive pole, between spray gun and workpiece, form stronger electrostatic field, when carrier gases (pressurized air) with powder coating from powder barrel when duff pipe is delivered to the diversion cup of spray gun, because diversion cup connects high voltage negative and produces corona discharge, produce intensive electric charge around it, negative charge on the powder belt, under electrostatic force and compressed-air actuated effect, powder is adsorbed on the workpiece uniformly, and through heating, powder melts is solidified into evenly, smooth, slick filming.Powder static electricity coating relies on electrostatic spraying exactly to workpiece surface, mutual NA powder particle layer is cross-linked into the net high-polymer compound through behind the heat fusing, forming firm coating and workpiece surface combines closely, nor can melt again or fusion, have good anticorrosion and decorate properties.
The invention has the beneficial effects as follows: this process using metal thermal spraying combine with electrostatic powder spraying; make compound coating both keep outermost resin water-fast; shock-resistant; weather-proof; any surface finish; good characteristics such as environment-protecting clean; combine the characteristics of the sealing process and the negative electrode long-effective protection of metallic coating again; and than come thinner of common coating and erosion resistance is stronger; this compound coating has obtained the corrosion resisting property of " 1+1＞2 "; prolonged the anticorrosion life-span greatly; brought up to indoor outdoor anticorrosion life-span more than 30 years more than 50 years by original 2-3, this compound coating is mainly used in the steel structural part that indoor and outdoor has higher requirement for anticorrosion.
Embodiment
Embodiment 1
Iron and steel parts removes the oil drying pre-treatment, promptly by cleaning iron and steel parts with organic solvents such as dimethylbenzene, carries out surface sand-blasting behind the seasoning 30min and handles, and uses the dry type sandblast machine, and every high pressure sand-blasting gun airshed is 8m
3/ min, air pressure are 6-7kg/cm
2, and the sandblast angle is 30 °-40 °, distance is 20-30cm.Roughness reaches Ry40-60 μ m.Carry out electric arc spraying zinc layer in 4 hours, the pressurized air of spraying usefulness should clean, dry, pressure must not be less than 0.4MPa, spray distance is 100-200mm, spray gun meets at right angles with surface of steel workpiece as far as possible, to cannot do without less than 45 °, the spray gun translational speed reaches 40-80 μ m with a coating thickness and is advisable, should there be 1/3 width overlapping between each spraying band, thickness requirement is even as far as possible, spray gun trend between each sprayed coating is vertical mutually, intersection covers, and reaches 40 μ m up to metal layer thickness, carries out the epoxy powder coating electrostatic spraying again, rely on static that epoxy powder is sprayed on the workpiece surface, mutual NA powder particle layer is cross-linked into the net high-polymer compound through behind the heat fusing, forms firm coating and workpiece surface and combines closely, and powder bed thickness reaches 120 μ m, send into baking oven through streamline then and solidify 10-15min down at 180 ℃, the compound coating total thickness reaches 160 μ m.
Embodiment 2
After iron and steel parts removes the oil drying pre-treatment, promptly by cleaning iron and steel parts with organic solvents such as dimethylbenzene, carry out surface sand-blasting behind the seasoning 30min and handle, use the dry type sandblast machine, every high pressure sand-blasting gun airshed is 8m
3/ min, air pressure are 6-7kg/cm
2, and the sandblast angle is 30 °-40 °, distance is 20-30cm.Roughness reaches Ry40-60 μ m.Carry out oxygen-acetylene flame plating rare earth aluminium lamination in 4 hours, spray distance is 100-200mm, spray gun meets at right angles with surface of steel workpiece as far as possible, to cannot do without less than 45 °, the spray gun translational speed reaches 40-80 μ m with a coating thickness and is advisable, should there be 1/3 width overlapping between each spraying band, thickness requirement is even as far as possible, spray gun trend between each sprayed coating is vertical mutually, intersect and cover, reach 120 μ m up to metal layer thickness, carry out the polyester resin powder coating electrostatic spraying again, rely on static that polyester resin powder is sprayed on the workpiece surface, mutual NA powder particle layer is cross-linked into the net high-polymer compound through behind the heat fusing, forms firm coating and workpiece surface and combines closely, and powder bed thickness reaches 60 μ m, send into baking oven through streamline then and solidify 10-15min down at 180 ℃, the compound coating total thickness reaches 180 μ m.
Embodiment 3
After iron and steel parts removes the oil drying pre-treatment, promptly by cleaning iron and steel parts with organic solvents such as dimethylbenzene, carry out surface sand-blasting behind the seasoning 30min and handle, use the dry type sandblast machine, every high pressure sand-blasting gun airshed is 8m
3/ min, air pressure are 6-7kg/cm
2, and the sandblast angle is 30 °-40 °, distance is 20-30cm.Roughness reaches Ry 40-60 μ m.Carry out oxygen-acetylene flame plating stainless steel layer in 4 hours, spray distance is 100-200mm, spray gun meets at right angles with surface of steel workpiece as far as possible, to cannot do without less than 45 °, the spray gun translational speed reaches 40-80 μ m with a coating thickness and is advisable, should there be 1/3 width overlapping between each spraying band, thickness requirement is even as far as possible, spray gun trend between each sprayed coating is vertical mutually, intersect and cover, reach 100 μ m up to metal layer thickness, carry out the epoxy polyester powder coating electrostatic spraying again, rely on static that polyester resin powder is sprayed on the workpiece surface, mutual NA powder particle layer is cross-linked into the net high-polymer compound through behind the heat fusing, forms firm coating and workpiece surface and combines closely, and powder bed thickness reaches 90 μ m, send into baking oven through streamline then and solidify 10-15min down at 180 ℃, the compound coating total thickness reaches about 190 μ m.
Embodiment 4
After iron and steel parts removes the oil drying pre-treatment, promptly by cleaning iron and steel parts with organic solvents such as dimethylbenzene, carry out surface sand-blasting behind the seasoning 30min and handle, use the dry type sandblast machine, every high pressure sand-blasting gun airshed is 8m
3/ min, air pressure are 6-7kg/cm
2, and the sandblast angle is 30 °-40 °, distance is 20-30cm.Roughness reaches Ry 40-60 μ m.Carry out electric arc spraying copper layer in 4 hours, the pressurized air of spraying usefulness should clean, dry, pressure must not be less than 0.4MPa, spray distance is 100-200mm, spray gun meets at right angles with surface of steel workpiece as far as possible, to cannot do without less than 45 °, the spray gun translational speed reaches 40-80 μ m with a coating thickness and is advisable, should there be 1/3 width overlapping between each spraying band, thickness requirement is even as far as possible, spray gun trend between each sprayed coating is vertical mutually, intersection covers, and reaches 120 μ m up to metal layer thickness, carries out the electrostatic spraying of polyethylene resin powder coating again, rely on static that polyethylene resin powder is sprayed on the workpiece surface, mutual NA powder particle layer is cross-linked into the net high-polymer compound through behind the heat fusing, forms firm coating and workpiece surface and combines closely, and powder bed thickness reaches 120 μ m, send into baking oven through streamline then and solidify 10-15min down at 180 ℃, the compound coating total thickness reaches 240 μ m.
Embodiment 5
After iron and steel parts removes the oil drying pre-treatment, promptly by cleaning iron and steel parts with organic solvents such as dimethylbenzene, carry out surface sand-blasting behind the seasoning 30min and handle, use the dry type sandblast machine, every high pressure sand-blasting gun airshed is 8m
3/ min, air pressure are 6-7kg/cm
2, and the sandblast angle is 30 °-40 °, distance is 20-30cm.Roughness reaches Ry40-60 μ m.Carry out electric arc spraying chromium layer in 4 hours, the pressurized air of spraying usefulness should clean, dry, pressure must not be less than 0.4MPa, spray distance is 100-200mm, spray gun meets at right angles with surface of steel workpiece as far as possible, to cannot do without less than 45 °, the spray gun translational speed reaches 40-80 μ m with a coating thickness and is advisable, should there be 1/3 width overlapping between each spraying band, thickness requirement is even as far as possible, spray gun trend between each sprayed coating is vertical mutually, intersection covers, and reaches 40 μ m up to metal layer thickness, carries out the electrostatic spraying of polyethylene resin powder coating again, rely on static that polyethylene resin powder is sprayed on the workpiece surface, mutual NA powder particle layer is cross-linked into the net high-polymer compound through behind the heat fusing, forms firm coating and workpiece surface and combines closely, and powder bed thickness reaches 60 μ m, send into baking oven through streamline then and solidify 10-15min down at 180 ℃, the compound coating total thickness reaches 100 μ m.
Claims (5)
1. metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique is characterized in that: comprise the steps,
(1) after iron and steel parts removes the oil drying pre-treatment, carry out surface sand-blasting and handle, roughness reaches Ry40-100 μ m;
Carry out metal thermal spraying in (2) 4 hours, after metal layer thickness reaches 40～120 μ m, carry out the powder coating electrostatic spraying again, make powder bed thickness reach 60～120 μ m;
(3) send into baking oven for heating then and solidify, make the compound coating total thickness reach 100～240 μ m.
2. metal thermal spraying as claimed in claim 1 and powder coating electrostatic spraying composite coat antiseptic technique is characterized in that: described metal thermal spraying adopts electric arc spraying or flame plating.
3. metal thermal spraying as claimed in claim 1 and powder coating electrostatic spraying composite coat antiseptic technique is characterized in that: the used material of described sandblasting adopts emergy, ferrochrome sand, a kind of in the copper ore.
4. metal thermal spraying as claimed in claim 1 or 2 and powder coating electrostatic spraying composite coat antiseptic technique is characterized in that: metal in the described metal thermal spraying adopts zinc, aluminium, aluminium zinc, rare earth aluminium alloy, stainless steel, copper, chromium, a kind of in the nickel.
5. metal thermal spraying as claimed in claim 1 and powder coating electrostatic spraying composite coat antiseptic technique, it is characterized in that: the powder of described powder coating electrostatic spraying adopts epoxy powder, polyester resin powder, epoxy polyester resin powder, a kind of in the polyethylene resin powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100706397A CN101122019A (en) | 2007-09-06 | 2007-09-06 | Metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100706397A CN101122019A (en) | 2007-09-06 | 2007-09-06 | Metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique |
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| CN101122019A true CN101122019A (en) | 2008-02-13 |
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|---|---|---|---|
| CNA2007100706397A Pending CN101122019A (en) | 2007-09-06 | 2007-09-06 | Metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433892A (en) * | 2007-11-15 | 2009-05-20 | 通用电气公司 | Methods of forming composite powder coatings and articles thereof |
| CN102211083A (en) * | 2010-04-01 | 2011-10-12 | 上海建冶科技工程股份有限公司 | Automatic coating process of composite coating of large-size steel pipe |
| 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 |
| CN102738441A (en) * | 2012-06-21 | 2012-10-17 | 常州优特科新能源科技有限公司 | Method for preparing bipolar cell bipolar chip through thermal-spray coating |
| CN102773206A (en) * | 2012-05-17 | 2012-11-14 | 安徽省金寨县金钢叉车部件制造有限公司 | Work piece painting technique |
| CN103147034A (en) * | 2013-03-21 | 2013-06-12 | 齐齐哈尔大学 | Preparation method of metal/modified basalt composite powder used for thermal spraying technology |
| CN103233218A (en) * | 2013-04-27 | 2013-08-07 | 宁波科鑫腐蚀控制工程有限公司 | Zinc and epoxy double coating reinforcing steel bar |
| CN104028429A (en) * | 2014-06-25 | 2014-09-10 | 梧州恒声电子科技有限公司 | Electrostatic powder spraying process of metal product |
| CN104164667A (en) * | 2014-09-15 | 2014-11-26 | 赵军军 | Method for preparing heterogeneous metal coating on steel surface by utilizing frictional heat |
| CN104249052A (en) * | 2014-09-22 | 2014-12-31 | 陕西航空电气有限责任公司 | Technological method for electrostatically spraying 10-5017 blue epoxy powder on copper components |
| CN105544058A (en) * | 2016-01-04 | 2016-05-04 | 英凯模金属网有限公司 | Stainless steel wire mesh and spraying technique thereof |
| CN105951592A (en) * | 2016-05-23 | 2016-09-21 | 江苏固格澜栅防护设施有限公司 | Guardrail with surface sprayed with nylon powder coating and manufacturing method |
| CN106229091A (en) * | 2016-07-25 | 2016-12-14 | 张峰 | Touch the coating antiseptic method of wire |
| CN107716242A (en) * | 2017-11-08 | 2018-02-23 | 东莞市广华精密机械电子有限公司 | A kind of novel powder spraying coating process |
| CN109482379A (en) * | 2018-12-26 | 2019-03-19 | 中冶京诚工程技术有限公司 | Arrange needle type static guiding device and electrostatic powder spraying device |
| CN112358770A (en) * | 2020-11-19 | 2021-02-12 | 旌海(苏州)电气有限公司 | Corrosion-resistant and moisture-proof electrical cabinet and preparation process thereof |
| CN112676132A (en) * | 2017-08-22 | 2021-04-20 | 泉州市万家宝儿童用品股份有限公司 | Three-layer composite coating of child dining chair accessory and spraying process thereof |
| CN113019731A (en) * | 2021-03-10 | 2021-06-25 | 江苏特丽亮镀膜科技有限公司 | Non-sputtering accurate paint spraying method and paint spraying system |
| CN113231287A (en) * | 2021-05-07 | 2021-08-10 | 福建辉丰环境工程科技有限公司 | Manufacturing method of insulating anti-corrosion prestressed steel bar |
| CN114146885A (en) * | 2021-12-27 | 2022-03-08 | 北京华德星科技有限责任公司 | Spraying method of corrosion-resistant coating for top of crude oil distillation tower |
| CN115198223A (en) * | 2018-07-26 | 2022-10-18 | 水利水电三门峡防腐工程有限公司 | Spraying method of wear-resistant and corrosion-resistant coating of steel gate for water conservancy and hydropower engineering |
| CN116037426A (en) * | 2023-02-08 | 2023-05-02 | 云南国鼎钢结构有限公司 | Corrosion prevention technology for steel structure |
-
2007
- 2007-09-06 CN CNA2007100706397A patent/CN101122019A/en active Pending
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433892A (en) * | 2007-11-15 | 2009-05-20 | 通用电气公司 | Methods of forming composite powder coatings and articles thereof |
| CN102211083A (en) * | 2010-04-01 | 2011-10-12 | 上海建冶科技工程股份有限公司 | Automatic coating process of composite coating of large-size steel pipe |
| 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 |
| CN102211083B (en) * | 2010-04-01 | 2014-04-16 | 上海建治防腐科技发展有限公司 | Automatic coating process of composite coating of large-size steel pipe |
| CN102773206A (en) * | 2012-05-17 | 2012-11-14 | 安徽省金寨县金钢叉车部件制造有限公司 | Work piece painting technique |
| CN102738441A (en) * | 2012-06-21 | 2012-10-17 | 常州优特科新能源科技有限公司 | Method for preparing bipolar cell bipolar chip through thermal-spray coating |
| CN103147034A (en) * | 2013-03-21 | 2013-06-12 | 齐齐哈尔大学 | Preparation method of metal/modified basalt composite powder used for thermal spraying technology |
| CN103233218A (en) * | 2013-04-27 | 2013-08-07 | 宁波科鑫腐蚀控制工程有限公司 | Zinc and epoxy double coating reinforcing steel bar |
| CN104028429A (en) * | 2014-06-25 | 2014-09-10 | 梧州恒声电子科技有限公司 | Electrostatic powder spraying process of metal product |
| CN104164667A (en) * | 2014-09-15 | 2014-11-26 | 赵军军 | Method for preparing heterogeneous metal coating on steel surface by utilizing frictional heat |
| CN104249052A (en) * | 2014-09-22 | 2014-12-31 | 陕西航空电气有限责任公司 | Technological method for electrostatically spraying 10-5017 blue epoxy powder on copper components |
| CN105544058A (en) * | 2016-01-04 | 2016-05-04 | 英凯模金属网有限公司 | Stainless steel wire mesh and spraying technique thereof |
| CN105951592A (en) * | 2016-05-23 | 2016-09-21 | 江苏固格澜栅防护设施有限公司 | Guardrail with surface sprayed with nylon powder coating and manufacturing method |
| CN106229091B (en) * | 2016-07-25 | 2018-10-30 | 张峰 | Touch the coating antiseptic method of conducting wire |
| CN106229091A (en) * | 2016-07-25 | 2016-12-14 | 张峰 | Touch the coating antiseptic method of wire |
| CN112676132B (en) * | 2017-08-22 | 2022-07-19 | 泉州市万家宝儿童用品股份有限公司 | Three-layer composite coating of child dining chair accessory and spraying process thereof |
| CN112676132A (en) * | 2017-08-22 | 2021-04-20 | 泉州市万家宝儿童用品股份有限公司 | Three-layer composite coating of child dining chair accessory and spraying process thereof |
| CN107716242A (en) * | 2017-11-08 | 2018-02-23 | 东莞市广华精密机械电子有限公司 | A kind of novel powder spraying coating process |
| CN115198223A (en) * | 2018-07-26 | 2022-10-18 | 水利水电三门峡防腐工程有限公司 | Spraying method of wear-resistant and corrosion-resistant coating of steel gate for water conservancy and hydropower engineering |
| CN109482379A (en) * | 2018-12-26 | 2019-03-19 | 中冶京诚工程技术有限公司 | Arrange needle type static guiding device and electrostatic powder spraying device |
| CN109482379B (en) * | 2018-12-26 | 2024-02-06 | 中冶京诚工程技术有限公司 | Pin header type electrostatic guiding device and powder electrostatic spraying device |
| CN112358770A (en) * | 2020-11-19 | 2021-02-12 | 旌海(苏州)电气有限公司 | Corrosion-resistant and moisture-proof electrical cabinet and preparation process thereof |
| CN113019731A (en) * | 2021-03-10 | 2021-06-25 | 江苏特丽亮镀膜科技有限公司 | Non-sputtering accurate paint spraying method and paint spraying system |
| CN113231287A (en) * | 2021-05-07 | 2021-08-10 | 福建辉丰环境工程科技有限公司 | Manufacturing method of insulating anti-corrosion prestressed steel bar |
| CN114146885A (en) * | 2021-12-27 | 2022-03-08 | 北京华德星科技有限责任公司 | Spraying method of corrosion-resistant coating for top of crude oil distillation tower |
| CN116037426A (en) * | 2023-02-08 | 2023-05-02 | 云南国鼎钢结构有限公司 | Corrosion prevention technology for steel structure |
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Open date: 20080213 |