CN101698189A - Zinc-galvanizing and paint-spraying coating process for submerged boat carrier - Google Patents
Zinc-galvanizing and paint-spraying coating process for submerged boat carrier Download PDFInfo
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- CN101698189A CN101698189A CN200910019294A CN200910019294A CN101698189A CN 101698189 A CN101698189 A CN 101698189A CN 200910019294 A CN200910019294 A CN 200910019294A CN 200910019294 A CN200910019294 A CN 200910019294A CN 101698189 A CN101698189 A CN 101698189A
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Abstract
The invention discloses a zinc-galvanizing and paint-spraying coating process for a submerged boat carrier, which comprises the following steps of: (1) sand blasting treatment for a base material; (2) hot zinc-galvanizing treatment; (3) roughening treatment for a zinc-galvanized layer; (4) spraying a base paint; and (5) spraying a finish paint. In the process, a workpiece is subjected to zinc galvanizing, and a zinc layer is an anode coating which has a function of electrochemical protection; by the hot zinc-galvanizing treatment for the base material, the corrosion resistance of the product is greatly improved; the sand blasting treatment for the base material before the zinc-galvanizing treatment, the natural cooling treatment after the zinc-galvanizing treatment and the sand blasting treatment before paint spraying respectively improve the adhesive force between the base material and the zinc layer, and between the zinc layer and the paint, and guarantee the surface quality; and the surface of the zinc-galvanized workpiece is sprayed with the antirust paint so as to effectively protect the base material, prevent rust and corrosion, prolong the service life and meet requirements on special working environment of the submerged boat carrier and other large-scale mechanical parts.
Description
Technical field
The present invention relates to a kind of Zinc-galvanizing and paint-spraying coating process, particularly a kind of zinc-galvanizing and paint-spraying coating process belongs to vehicle spraying technology field.
Background technology
Submerged boat carrier is the transportation vehicle of designing and developing in recent years, can carry out underwater operation, transports ship, vehicle in seawater.Because the particularity of working environment, the durability of submerged boat carrier main parts size (vehicle frame, wheel hub, oil cylinder etc.) and long-lasting and antirust, anticorrosive measure become important topic.
At present, the electrogalvanizing method is adopted in anti-corrosion measure commonly used, but the zinc coating thickness that such technology obtains little, be not suitable for large-scale component; Another kind of anti-corrosion measure is at surface of the work rust prevention by applying liquid material lacquer, but its service life is low, can not satisfy long-acting antirust, etch-proof needs equally.Above-mentioned two kinds of traditional rust resistance and corrosion resistance measures all can not be satisfied under the particular surroundings, protection ground, the need of work that increases the service life.
Summary of the invention
Deficiency at prior art; technical problem to be solved by this invention is: a kind of zinc-galvanizing and paint-spraying coating process is provided; the purpose that reach effective protection workpiece ground, antirust, anticorrosion, increases the service life satisfies the needs of large scale machine parts particular surroundings operations such as submerged boat carrier.
For solving the problems of the technologies described above, the technical solution used in the present invention is that a kind of zinc-galvanizing and paint-spraying coating process may further comprise the steps:
(1) the ground sanding is handled;
(2) heat dip zinc treating;
(3) the zinc-impregnating layer hacking is handled;
(4) priming paint spraying;
(5) finish paint spraying.
Above-mentioned zinc-galvanizing and paint-spraying coating process comprises following content:
(1) the ground sanding is handled: after treating that the car load welding is finished, its assembly is gone to the sanding room carry out sanding, make each surface reach the Sa2.5 grade standard; In this process, compressed air pressure is 0.5～0.6MPa; Shot diameter: 1.2～1.5mm; Shot hardness HV400～500; Nozzle diameter: 4～6mm;
(2) heat dip zinc treating: the assembly after sanding handled carries out heat dip zinc treating, and the minimum thickness of parts zinc-impregnating layer is 100um, cools off naturally after soaking zinc;
(3) sanding is carried out on parts zinc-impregnating layer surface and handle again, strengthen the zinc-impregnating layer surface roughness; During processing, compressed air pressure is 0.2～0.3MPa, shot diameter 0.8～1.0mm;
(4) priming paint spraying: with compressed air steel sand, the dust of parts zinc-impregnating layer remained on surface to be sprayed are removed, used sticky cloth wiping all surface again, remove the small floating dust on surface; Evenly spray twice priming paint on parts zinc-impregnating layer surface then, the spray of leakage, grinning effect must not be arranged, the per pass film thickness is 20-25 μ m, and the paint film gross thickness is not less than 40 μ m;
(5) finish paint spraying: spray paint behind the priming paint bone dry; Before the finish paint spraying, with 400# sand paper priming paint is polished earlier, and then use the 600# sand papering, dip in cleansing tissue then and get degreaser, use the wiping of viscosity wiper at last, remove small floating dust all surface wiping; Evenly twice finish paint of spraying must not have the spray of leakage, grinning effect, and the per pass film thickness is 25-30 μ m, and the paint film gross thickness is not less than 50 μ m;
Above-mentioned zinc-galvanizing and paint-spraying coating process, wherein:
Priming paint is epoxy zinc rich primer, is two component priming paint of base-material with epoxy resin and polyamide, as: Qing Daohai builds the HJ100 that chemical Co., Ltd produces;
Finish paint is the aliphatic polyurethane finish paint, is base-material with aliphatic isocyanates with the acrylic resin that contains alkyl, and is equipped with the two component polyurethane finish paint that weather-proof color, auxiliary agent etc. are formed, as: Qing Daohai builds the HJ500 that chemical Co., Ltd produces.
Zinc-galvanizing and paint-spraying coating process of the present invention is soaked zinc with workpiece earlier, and the zinc layer is an anode coating, can play the electrochemical protection effect, by the heat dip zinc treating to ground, has improved the corrosion resistance of product greatly; The ground sanding that soaks before the zinc is handled, and soaks cooling naturally behind the zinc, and the sanding processing before the paint spraying has improved the adhesive force of ground and zinc layer, zinc layer and paint respectively, has guaranteed surperficial quality; Carry out the spraying of antirust paint again soaking the zinc surface of the work, satisfied the needs of large scale machine parts particular surroundings operations such as submerged boat carrier.
Simultaneously, select corresponding supporting paint for use, finally guaranteed the quality of paint film, satisfy user demand in conjunction with different environments for use.The finish paint of selecting for use, zinc content height in the paint film has the cathodic protection performance, and fast drying has excellent adhesive force, wearability, impact resistance and excellent antiseptic property.The priming paint of selecting for use, paint film is tough and tensile, good decorative property, have excellent weather-proof, protect light, colour retention, and have excellent chemical-resistant and resistance to water.The purpose of using this technology can reach effective protection ground, antirust, anticorrosion, increase the service life.
The specific embodiment
Embodiment 1
1, coating process step:
(1) the ground sanding is handled.After treating that the car load welding is finished, its assembly is gone to the sanding room carry out sanding.Compressed air pressure is 0.5MPa, and the shot diameter is 1.5mm, and shot hardness is HV400; Nozzle diameter is 4mm, and each surface reaches the Sa2.5 grade standard.
(2) heat dip zinc treating.Assembly after the sanding processing is carried out heat dip zinc treating.The minimum thickness that the zinc parts are soaked in requirement is 100um, and zinc-impregnating layer is evenly smooth, and the surface does not have tangible disadvantage, soaks cooling naturally behind the zinc.
(3) the zinc-impregnating layer hacking is handled.Because the surface after zinc-plated is very smooth, adhesive force is affected behind the spraying priming paint, requires that therefore zinc coat is carried out sanding and handles, the requirement compressed air pressure is 0.2MPa, shot diameter: 1.0mm, soaking the zinc surface roughness with increasing is principle, and the zinc layer must not be removed.
(4) priming paint spraying.With the steel sand of compressed air with remained on surface to be sprayed, dusts etc. are removed, then with sticky cloth to all surface wiping, remove the small floating dust on surface, require priming paint spraying twice, the per pass film thickness is 20 μ m, the paint film gross thickness must not be less than 40 μ m, spraying evenly must not have the spray of leakage, and grinning effect exists.
(5) finish paint spraying.Treat to carry out behind the priming paint bone dry spraying of finish paint.Before the finish paint spraying, with 400# sand paper priming paint is polished earlier, and then use the 600# sand papering, dip in cleansing tissue then and get degreaser, use the wiping of viscosity wiper at last, remove small floating dust all surface wiping.Finish paint requires spraying twice, and the per pass film thickness is 30 μ m, and the paint film gross thickness must not be less than 50 μ m, spray evenly completely, the spray of leakage must not be arranged, the grinning effect existence.
2. selected paint kind:
On the spraying type of paint, through test, use epoxy zinc rich primer and aliphatic polyurethane finish paint to existing paint, can reach satisfied effect.
(1) epoxy zinc rich primer is two component priming paint of base-material with epoxy resin and polyamide, as: Qing Daohai builds the HJ100 that chemical Co., Ltd produces; Zinc content height in the paint film has the cathodic protection performance, and fast drying has excellent adhesive force, wearability, impact resistance and excellent antiseptic property.
(2) aliphatic polyurethane finish paint is base-material with aliphatic isocyanates with the acrylic resin that contains alkyl, and is equipped with the two component polyurethane finish paint that weather-proof color, auxiliary agent etc. are formed, as: Qing Daohai builds the HJ500 that chemical Co., Ltd produces; Paint film is tough and tensile, good decorative property, have excellent weather-proof, protect light, colour retention, and have excellent chemical-resistant and resistance to water.
Embodiment 2
1, coating process step:
(1) the ground sanding is handled.After treating that the car load welding is finished, its assembly is gone to the sanding room carry out sanding.Compressed air pressure is 0.6MPa, shot diameter: 1.2mm, shot hardness HV500; Nozzle diameter: 6mm, each surface reaches the Sa2.5 grade standard.
(2) heat dip zinc treating.Assembly after the sanding processing is carried out heat dip zinc treating.The minimum thickness that the zinc parts are soaked in requirement is 100um, and zinc-impregnating layer is evenly smooth, and the surface does not have tangible disadvantage, soaks cooling naturally behind the zinc.
(3) the zinc-impregnating layer hacking is handled.Because the surface after zinc-plated is very smooth, adhesive force is affected behind the spraying priming paint, requires that therefore zinc coat is carried out sanding and handles, the requirement compressed air pressure is 0.3MPa, shot diameter: 0.8mm, soaking the zinc surface roughness with increasing is principle, and the zinc layer must not be removed.
(4) priming paint spraying.With the steel sand of compressed air with remained on surface to be sprayed, dusts etc. are removed, then with sticky cloth to all surface wiping, remove the small floating dust on surface, require priming paint spraying twice, the per pass film thickness is 25 μ m, the paint film gross thickness must not be less than 40 μ m, spraying evenly must not have the spray of leakage, and grinning effect exists.
(5) finish paint spraying.Treat to carry out behind the priming paint bone dry spraying of finish paint.Before the finish paint spraying, with 400# sand paper priming paint is polished earlier, and then use the 600# sand papering, dip in cleansing tissue then and get degreaser, use the wiping of viscosity wiper at last, remove small floating dust all surface wiping.Finish paint requires spraying twice, and the per pass film thickness is 25 μ m, and the paint film gross thickness must not be less than 50 μ m, spray evenly completely, the spray of leakage must not be arranged, the grinning effect existence.
2. selected paint kind:
On the spraying type of paint, through test, use epoxy zinc rich primer and aliphatic polyurethane finish paint to existing paint, can reach satisfied effect.
(1) epoxy zinc rich primer is two component priming paint of base-material with epoxy resin and polyamide, as: Qing Daohai builds the HJ100 that chemical Co., Ltd produces; Zinc content height in the paint film has the cathodic protection performance, and fast drying has excellent adhesive force, wearability, impact resistance and excellent antiseptic property.
(2) aliphatic polyurethane finish paint is base-material with aliphatic isocyanates with the acrylic resin that contains alkyl, and is equipped with the two component polyurethane finish paint that weather-proof color, auxiliary agent etc. are formed, as: Qing Daohai builds the HJ500 that chemical Co., Ltd produces; Paint film is tough and tensile, good decorative property, have excellent weather-proof, protect light, colour retention, and have excellent chemical-resistant and resistance to water.
Embodiment 3
1, coating process step:
(1) the ground sanding is handled.After treating that the car load welding is finished, its assembly is gone to the sanding room carry out sanding.Compressed air pressure is 0.55MPa, shot diameter: 1.4mm, shot hardness HV450; Nozzle diameter: 5mm, each surface reaches the Sa2.5 grade standard.
(2) heat dip zinc treating.Assembly after the sanding processing is carried out heat dip zinc treating.The minimum thickness that the zinc parts are soaked in requirement is 100um, and zinc-impregnating layer is evenly smooth, and the surface does not have tangible disadvantage, soaks cooling naturally behind the zinc.
(3) the zinc-impregnating layer hacking is handled.Because the surface after zinc-plated is very smooth, adhesive force is affected behind the spraying priming paint, requires that therefore zinc coat is carried out sanding and handles, the requirement compressed air pressure is 0.25MPa, shot diameter: 0.9mm, soaking the zinc surface roughness with increasing is principle, and the zinc layer must not be removed.
(4) priming paint spraying.With the steel sand of compressed air with remained on surface to be sprayed, dusts etc. are removed, then with sticky cloth to all surface wiping, remove the small floating dust on surface, require priming paint spraying twice, the per pass film thickness is 23 μ m, the paint film gross thickness must not be less than 40 μ m, spraying evenly must not have the spray of leakage, and grinning effect exists.
(5) finish paint spraying.Treat to carry out behind the priming paint bone dry spraying of finish paint.Before the finish paint spraying, with 400# sand paper priming paint is polished earlier, and then use the 600# sand papering, dip in cleansing tissue then and get degreaser, use the wiping of viscosity wiper at last, remove small floating dust all surface wiping.Finish paint requires spraying twice, and the per pass film thickness is 28 μ m, and the paint film gross thickness must not be less than 50 μ m, spray evenly completely, the spray of leakage must not be arranged, the grinning effect existence.
2. selected paint kind:
On the spraying type of paint, through test, use epoxy zinc rich primer and aliphatic polyurethane finish paint to existing paint, can reach satisfied effect.
(1) epoxy zinc rich primer is two component priming paint of base-material with epoxy resin and polyamide, as: Qing Daohai builds the HJ100 that chemical Co., Ltd produces; Zinc content height in the paint film has the cathodic protection performance, and fast drying has excellent adhesive force, wearability, impact resistance and excellent antiseptic property.
(2) aliphatic polyurethane finish paint is base-material with aliphatic isocyanates with the acrylic resin that contains alkyl, and is equipped with the two component polyurethane finish paint that weather-proof color, auxiliary agent etc. are formed, as: Qing Daohai builds the HJ500 that chemical Co., Ltd produces; Paint film is tough and tensile, good decorative property, have excellent weather-proof, protect light, colour retention, and have excellent chemical-resistant and resistance to water.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement all should belong to protection scope of the present invention.
Claims (3)
1. zinc-galvanizing and paint-spraying coating process may further comprise the steps:
(1) the ground sanding is handled;
(2) heat dip zinc treating;
(3) the zinc-impregnating layer hacking is handled;
(4) priming paint spraying;
(5) finish paint spraying.
2. zinc-galvanizing and paint-spraying coating process according to claim 1 comprises following content:
(1) the ground sanding is handled: after treating that the car load welding is finished, its assembly is gone to the sanding room carry out sanding; Compressed air pressure is 0.5～0.6MPa, shot diameter: 1.2～1.5mm, and shot hardness HV400～500, nozzle diameter: 4～6mm, each surface reaches the Sa2.5 grade standard;
(2) heat dip zinc treating: the assembly after the sanding processing is carried out heat dip zinc treating; The minimum thickness that the zinc parts are soaked in requirement is 100um, soaks cooling naturally behind the zinc;
(3) the zinc-impregnating layer hacking is handled: because the surface after zinc-plated is very smooth, adhesive force is affected behind the spraying priming paint, requires that therefore zinc coat is carried out sanding and handles, and requiring compressed air pressure is 0.2～0.3MPa, shot diameter: 0.8～1.0mm;
(4) priming paint spraying: with the steel sand of compressed air with remained on surface to be sprayed, dust etc. are removed, then with sticky cloth to all surface wiping, remove the small floating dust on surface, require priming paint spraying twice, the per pass film thickness is 20-25 μ m, and the paint film gross thickness must not be less than 40 μ m;
(5) finish paint spraying: treat to carry out behind the priming paint bone dry spraying of finish paint; Before the finish paint spraying, with 400# sand paper priming paint is polished earlier, and then use the 600# sand papering, dip in cleansing tissue then and get degreaser, use the wiping of viscosity wiper at last, remove small floating dust all surface wiping; Finish paint requires spraying twice, and the per pass film thickness is 25-30 μ m, and the paint film gross thickness must not be less than 50 μ m.
3. zinc-galvanizing and paint-spraying coating process according to claim 1, wherein:
Priming paint is epoxy zinc rich primer, is two component priming paint of base-material with epoxy resin and polyamide;
Finish paint is the aliphatic polyurethane finish paint, is base-material with aliphatic isocyanates with the acrylic resin that contains alkyl, and is equipped with the two component polyurethane finish paint that weather-proof color, auxiliary agent etc. are formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910019294.1A CN101698189B (en) | 2009-10-16 | 2009-10-16 | Zinc-galvanizing and paint-spraying coating process for submerged boat carrier |
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| CN200910019294.1A CN101698189B (en) | 2009-10-16 | 2009-10-16 | Zinc-galvanizing and paint-spraying coating process for submerged boat carrier |
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| CN101698189A true CN101698189A (en) | 2010-04-28 |
| CN101698189B CN101698189B (en) | 2014-10-15 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934265A (en) * | 2010-08-04 | 2011-01-05 | 六和轻合金（昆山）有限公司 | Coating method of aluminum alloy wheel rim |
| CN101954349A (en) * | 2010-08-20 | 2011-01-26 | 安徽华菱汽车股份有限公司 | Process for coating automobile axle |
| CN102476094A (en) * | 2010-11-26 | 2012-05-30 | 大连船舶重工集团有限公司 | Special coating process of cargo tank of product tanker/chemical tanker |
| CN102861712A (en) * | 2012-09-28 | 2013-01-09 | 北京星航机电设备厂 | Coating method of radar wave absorbing coating |
| CN102911542A (en) * | 2012-11-02 | 2013-02-06 | 遵义县中宇金属制品涂装有限责任公司 | Epoxy zinc rich powder and polyurethane finish powder combined spraying process formula |
| CN103623987A (en) * | 2013-11-25 | 2014-03-12 | 南通长青沙船舶工程有限公司 | Coating technology of ship |
| CN103817056A (en) * | 2014-03-19 | 2014-05-28 | 哈尔滨工业大学 | Coating service life prolonging method for preventing cracks of brittle coatings from being propagated through micro-spraying and micro-round-corners |
| CN104148260A (en) * | 2014-08-29 | 2014-11-19 | 无锡新势力电机科技有限公司 | Corrosion prevention processing method for motor part |
| CN104259069A (en) * | 2014-08-29 | 2015-01-07 | 无锡新势力电机科技有限公司 | Anticorrosive treatment process for motor part |
| CN104353599A (en) * | 2014-11-11 | 2015-02-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Method using glass beads to treat anti-rust paint layer of steel aviation part |
| CN105154805A (en) * | 2015-10-12 | 2015-12-16 | 济南玫德铸造有限公司 | Galvanized dip coating malleable cast iron pipe fitting and preparation method thereof |
| CN107051839A (en) * | 2017-02-14 | 2017-08-18 | 广东欧珀移动通信有限公司 | A kind of preparation method of metal fittings, metal fittings and mobile terminal |
| CN111155079A (en) * | 2019-12-13 | 2020-05-15 | 中国电子科技集团公司第十四研究所 | Tempering agent for enhancing adhesion of organic material coated on surface of hot-dip galvanized steel and tempering method thereof |
| CN115254567A (en) * | 2022-06-30 | 2022-11-01 | 东风商用车有限公司 | Automobile chassis coating process |
| CN115555232A (en) * | 2022-10-11 | 2023-01-03 | 浙江旗创新材料科技有限公司 | Preparation method of leakage-free high-resistance anticorrosive coating |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934265A (en) * | 2010-08-04 | 2011-01-05 | 六和轻合金（昆山）有限公司 | Coating method of aluminum alloy wheel rim |
| CN101954349A (en) * | 2010-08-20 | 2011-01-26 | 安徽华菱汽车股份有限公司 | Process for coating automobile axle |
| CN102476094A (en) * | 2010-11-26 | 2012-05-30 | 大连船舶重工集团有限公司 | Special coating process of cargo tank of product tanker/chemical tanker |
| CN102861712A (en) * | 2012-09-28 | 2013-01-09 | 北京星航机电设备厂 | Coating method of radar wave absorbing coating |
| CN102911542A (en) * | 2012-11-02 | 2013-02-06 | 遵义县中宇金属制品涂装有限责任公司 | Epoxy zinc rich powder and polyurethane finish powder combined spraying process formula |
| CN103623987A (en) * | 2013-11-25 | 2014-03-12 | 南通长青沙船舶工程有限公司 | Coating technology of ship |
| CN103817056A (en) * | 2014-03-19 | 2014-05-28 | 哈尔滨工业大学 | Coating service life prolonging method for preventing cracks of brittle coatings from being propagated through micro-spraying and micro-round-corners |
| CN104259069A (en) * | 2014-08-29 | 2015-01-07 | 无锡新势力电机科技有限公司 | Anticorrosive treatment process for motor part |
| CN104148260A (en) * | 2014-08-29 | 2014-11-19 | 无锡新势力电机科技有限公司 | Corrosion prevention processing method for motor part |
| CN104353599A (en) * | 2014-11-11 | 2015-02-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Method using glass beads to treat anti-rust paint layer of steel aviation part |
| CN105154805A (en) * | 2015-10-12 | 2015-12-16 | 济南玫德铸造有限公司 | Galvanized dip coating malleable cast iron pipe fitting and preparation method thereof |
| CN105154805B (en) * | 2015-10-12 | 2018-01-09 | 玫德集团有限公司 | A kind of zinc-plated dipping lacquer malleable cast iron pipe fitting |
| CN107051839A (en) * | 2017-02-14 | 2017-08-18 | 广东欧珀移动通信有限公司 | A kind of preparation method of metal fittings, metal fittings and mobile terminal |
| CN111155079A (en) * | 2019-12-13 | 2020-05-15 | 中国电子科技集团公司第十四研究所 | Tempering agent for enhancing adhesion of organic material coated on surface of hot-dip galvanized steel and tempering method thereof |
| CN115254567A (en) * | 2022-06-30 | 2022-11-01 | 东风商用车有限公司 | Automobile chassis coating process |
| CN115254567B (en) * | 2022-06-30 | 2023-07-07 | 东风商用车有限公司 | Automobile chassis coating process |
| CN115555232A (en) * | 2022-10-11 | 2023-01-03 | 浙江旗创新材料科技有限公司 | Preparation method of leakage-free high-resistance anticorrosive coating |
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