CN101967667A - Physical pretreatment and electrophoresis coating process of aluminum magnesium alloy - Google Patents
Physical pretreatment and electrophoresis coating process of aluminum magnesium alloy Download PDFInfo
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- CN101967667A CN101967667A CN2010105140274A CN201010514027A CN101967667A CN 101967667 A CN101967667 A CN 101967667A CN 2010105140274 A CN2010105140274 A CN 2010105140274A CN 201010514027 A CN201010514027 A CN 201010514027A CN 101967667 A CN101967667 A CN 101967667A
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Abstract
The invention provides a physical pretreatment and electrophoresis coating process of an aluminum magnesium alloy, which is divided into two items of physical pretreatment and electrophoresis coating, wherein the physical pretreatment is surface abrasive blasting; and in the surface abrasive blasting process, the size of abrasive grains is determined according to the roughness required by the surface of a workpiece. The invention also discloses the process steps of the physical pretreatment and the electrophoresis coating of the aluminum magnesium alloy, which comprise abrasive selecting, spray gun adjusting, abrasive blasting, dedusting, electrophoresis coating, cleaning and drying, ceramic coating spraying and drying. The physical pretreatment and electrophoresis coating process of the aluminum magnesium alloy adopts the treatment process combining the abrasive blasting treatment and the electrophoresis coating, not only reduces the environment pollution and the damages to the human body, but also has the advantages of simple process operation, low cost, environment protection, no toxin, good surface cleanness, tight and firm combination of the coating obtained by an electrophoresis coating and a substrate of the workpiece, good adhesion, compact and attractive surface coating of the aluminum magnesium alloy, and obvious corrosion resistance enhancement.
Description
Technical field
The invention belongs to field of metal surface treatment technology, relate to a kind of aluminum magnesium alloy process for treating surface, be specifically related to pre-treatment of a kind of aluminum magnesium alloy physics and electrophoresis coating technique.
Background technology
At present, the pre-treating technology of aluminum magnesium alloy adopts the mode of bonderizing, Passivation Treatment substantially, adopts this class pre-treating technology, has certain having to pollute and harm to physical environment, HUMAN HEALTH, and there is process implementing cost height, operates comparatively shortcoming such as complexity; Phosphating process or passivation technology that aluminum magnesium alloy electrophoretic painting pretreatment technology is adopted, wherein contain in the phosphating process and be difficult to the neutral inorganic phosphorus, this material is to cause the rich phosphorus of aqueous systems one of to pollute, and phosphatization belongs to middle strong acid, equipment there is stronger corrosion harmfulness, the shortcoming of aluminum magnesium alloy phosphatizing technology maximum is exactly that the consumption of solution is very fast, the composition and the acidity of continuous calibration solution; Passivation technology mainly is to contain sexavalent chrome or chromic chromatedsolution, though aspect corrosion resistance nature and sticking power performance better because chromatedsolution has bigger harm to human body and environment, so in recent years gradually to the treatment process development of Chrome-free.
Summary of the invention
The purpose of this invention is to provide pre-treatment of a kind of aluminum magnesium alloy physics and electrophoresis coating technique, employing utilizes the high speed sand flow in workpiece surface sandblast in advance, removes workpiece surface corrosion, carbon distribution, burr etc., make workpiece have certain roughness, for follow-up top coat is got ready; Utilize aluminum magnesium alloy electrophoretic painting colloidal ultimate principle again, coated article (aluminum magnesium alloy workpiece) is immersed in the water soluble paint, under electric field action, the physics chemical action that relies on electric field to produce is deposited on coating on the aluminum magnesium alloy workpiece, has solved the problem that exists in the existing aluminum magnesium alloy process for treating surface.
The technical solution adopted in the present invention is, pre-treatment of a kind of aluminum magnesium alloy physics and electrophoresis coating technique, this technology is divided into the physics pre-treatment and two contents of electrophoretic painting are carried out, described physics pre-treatment is a surface sand-blasting, surface sand-blasting needs to determine according to the required roughness of workpiece surface the sand grains of employed big ting model, be specially: roughness is 2.0～2.5um, and sand mold is 16
#Roughness is 1.0～1.5um, and sand mold is 46
#Roughness is 0.8～1.0um, and sand mold is 80
#Roughness is 0.7～0.8um, and sand mold is 90
#Roughness is 0.5～0.6um, and sand mold is 120
#
Aluminum magnesium alloy physics of the present invention pre-treatment and electrophoresis coating technique, its feature are that also this technology is carried out according to the following steps:
Step 1, select sand grains, and the sand of choosing is packed in the sand jar according to the required roughness of workpiece surface;
Step 2, spray gun are prepared, and the cleaning spray gun is also adjusted air pressure, air pressure: 0.4～0.6MPa;
Determining of the distance of step 3, workpiece, spray gun and sandblast time; Sandblast distance 20～30cm, the sandblast time is generally 1～5min/1 spare, then sandblast;
Step 4, the workpiece of sandblasting is carried out dedusting;
Step 5, will put into electrophoresis chamber through dust separating workpiece and carry out electrophoresis; Electrophoresis parameter: voltage: 100V～150V, the time is 1～3min, thickness is 15～22um;
Step 6, electrophoresis finish and carry out clear water cleaning, drying;
Step 7, the workpiece behind the electrophoresis is carried out oil paint spraying, nano ceramics coating is adopted in spraying, and film thickness monitoring is at 25～45um;
Step 8, oven dry.
Aluminum magnesium alloy physics of the present invention pre-treatment and electrophoresis coating technique compared with prior art, the treatment process that it has adopted sandblasting to combine with electrophoretic painting has not only reduced the harm of environmental pollution and human body, and has following characteristics:
1, technological operation is simple, with low cost, environmental protection, nontoxic;
2, surface of good degree of cleaning;
3, controllability is selected workpiece surface roughness;
4, coating is more firmly tight with combining of matrix, and sticking power well reaches hardness;
5, the densification of aluminum magnesium alloy top coat is attractive in appearance, and corrosion resisting property significantly improves.
Description of drawings
Fig. 1 is aluminum magnesium alloy physics of the present invention pre-treatment and electrophoresis coating technique schema.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Pre-treatment of a kind of aluminum magnesium alloy physics and electrophoresis coating technique, this technology is divided into the physics pre-treatment and two contents of electrophoretic painting are carried out, described physics pre-treatment is a surface sand-blasting, surface sand-blasting needs to determine according to the required roughness of workpiece surface the sand grains of employed big ting model, be specially: roughness is 2.0～2.5um, and sand mold is 16
#Roughness is 1.0～1.5um, and sand mold is 46
#Roughness is 0.8～1.0um, and sand mold is 80
#Roughness is 0.7～0.8um, and sand mold is 90
#Roughness is 0.5～0.6um, and sand mold is 120
#
Aluminum magnesium alloy physics of the present invention pre-treatment and electrophoresis coating technique, as shown in Figure 1, this technical process is carried out according to the following steps:
Step 1, select sand grains, and the sand of choosing is packed in the sand jar according to the required roughness of workpiece surface;
Step 2, spray gun are prepared: the cleaning spray gun is also adjusted air pressure, air pressure: 0.4～0.6MPa;
Determining of the distance of step 3, workpiece, spray gun and sandblast time; Sandblast distance 20～30cm, the sandblast time is generally 1～5min/1 spare, then sandblast;
Step 4, the workpiece of sandblasting is carried out dedusting;
Step 5, will put into electrophoresis chamber through dust separating workpiece and carry out electrophoresis; Electrophoresis parameter: voltage: 100V～150V, the time is 1～3min, thickness is 15～22um;
Step 6, electrophoresis finish and carry out clear water cleaning, drying;
Step 7, the workpiece behind the electrophoresis is carried out oil paint spraying, nano ceramics coating is adopted in spraying, and film thickness monitoring is at 25～45um;
Step 8, oven dry.
The present invention carries out sandblasting at the aluminum magnesium alloy workpiece surface, determine the big ting model of the employed sand grains of sandblast according to the roughness that the workpiece surface needs reach, the surface of the aluminum magnesium alloy workpiece of different roughness, select varigrained sand grains for use, utilize spray gun to penetrate the high speed sand flow, remove workpiece surface corrosion, carbon distribution, burr etc., carry out making workpiece surface have certain roughness after the sandblast, for follow-up external coating process implementing lays the first stone; Utilize electrophoretic painting colloidal ultimate principle again, coated article-aluminum magnesium alloy workpiece is immersed in the water soluble paint, under electric field action, the physics chemical action that relies on electric field to produce is deposited on coating on the workpiece; Electrophoretic parameter setting, voltage: 100V～150V, the time is 1～3min, just can be at the film of aluminum magnesium alloy workpiece surface application 15～22um.
Aluminum magnesium alloy workpiece electrophoresis finishes to be needed to clean with clear water, carries out drying after cleaning up;
Again workpiece is carried out the oil paint spraying after the drying, nano ceramics coating is adopted in spraying, and film thickness monitoring is at 25～45um; Dry processing behind the nano ceramics paint spay-coating, finishing whole technological process.
Aluminum magnesium alloy physics of the present invention pre-treatment and electrophoresis coating technique, the treatment process that has adopted sandblasting to combine with electrophoretic painting not only reduced the pollution of environment and the harm of human body, and technological operation is simple, with low cost, environmental protection, nontoxic; Surface clearness is good; The close and firm that combines of the coating that electrophoretic painting obtains and workpiece substrate, sticking power is good, and the densification of aluminum magnesium alloy top coat is attractive in appearance, and solidity to corrosion significantly improves.
Above-mentioned embodiment is an an example of the present invention, is not to be used for limiting enforcement of the present invention and interest field, and all equivalences of making according to the described content of the present patent application scope of patent protection change and modify, and all should be included in the present patent application claim.
Claims (2)
1. aluminum magnesium alloy physics pre-treatment and electrophoresis coating technique, it is characterized in that, this technology is divided into the physics pre-treatment and two contents of electrophoretic painting are carried out, described physics pre-treatment is a surface sand-blasting, surface sand-blasting needs to determine according to the required roughness of workpiece surface the sand grains of employed big ting model, be specially: roughness is 2.0～2.5um, and sand mold is 16
#Roughness is 1.0～1.5um, and sand mold is 46
#Roughness is 0.8～1.0um, and sand mold is 80
#Roughness is 0.7～0.8um, and sand mold is 90
#Roughness is 0.5～0.6um, and sand mold is 120
#
2. aluminum magnesium alloy physics according to claim 1 pre-treatment and electrophoresis coating technique is characterized in that, this technology is carried out according to the following steps:
Step 1, select sand grains, and the sand of choosing is packed in the sand jar according to the required roughness of workpiece surface;
Step 2, spray gun are prepared, and the cleaning spray gun is also adjusted air pressure, air pressure: 0.4～0.6MPa;
Determining of the distance of step 3, workpiece, spray gun and sandblast time; Sandblast distance 20～30cm, the sandblast time is generally 1～5min/1 spare, then sandblast;
Step 4, the workpiece of sandblasting is carried out dedusting;
Step 5, will put into electrophoresis chamber through dust separating workpiece and carry out electrophoresis; Electrophoresis parameter: voltage: 100V～150V, the time is 1～3min, thickness is 15～22um;
Step 6, electrophoresis finish and carry out clear water cleaning, drying;
Step 7, the workpiece behind the electrophoresis is carried out oil paint spraying, nano ceramics coating is adopted in spraying, and film thickness monitoring is at 25～45um;
Step 8, oven dry.
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| CN2010105140274A CN101967667A (en) | 2010-10-21 | 2010-10-21 | Physical pretreatment and electrophoresis coating process of aluminum magnesium alloy |
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| CN2010105140274A CN101967667A (en) | 2010-10-21 | 2010-10-21 | Physical pretreatment and electrophoresis coating process of aluminum magnesium alloy |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101253A (en) * | 2013-01-23 | 2013-05-15 | 陕西生益科技有限公司 | Copper surface processing technique for manufacturing thick copper-clad laminated board |
| CN103451709A (en) * | 2012-06-01 | 2013-12-18 | 汉达精密电子(昆山)有限公司 | Electrophoresis processing method for aluminium alloy with matting mirror effect and product of the method |
| CN103526211A (en) * | 2013-09-30 | 2014-01-22 | 贵州凯星液力传动机械有限公司 | Processing method for aluminum sheet valve in fuel channel of injector |
| CN103628116A (en) * | 2012-08-29 | 2014-03-12 | 汉达精密电子(昆山)有限公司 | Die casting surface treatment method and product thereof |
| CN106272091A (en) * | 2016-08-15 | 2017-01-04 | 合肥江淮铸造有限责任公司 | A kind of cleaning technology of diesel engine cylinder block |
| CN109811391A (en) * | 2019-01-21 | 2019-05-28 | 四会市国耀铝业有限公司 | A kind of waterproof aluminum alloy casement window electrophoresis lacquered surface processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955343A (en) * | 2005-10-24 | 2007-05-02 | 比亚迪股份有限公司 | Electroplating method of alluminium alloy surface |
| CN101591760A (en) * | 2004-07-09 | 2009-12-02 | 上海润实防蚀新材料科技有限公司 | Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof |
-
2010
- 2010-10-21 CN CN2010105140274A patent/CN101967667A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591760A (en) * | 2004-07-09 | 2009-12-02 | 上海润实防蚀新材料科技有限公司 | Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof |
| CN1955343A (en) * | 2005-10-24 | 2007-05-02 | 比亚迪股份有限公司 | Electroplating method of alluminium alloy surface |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451709A (en) * | 2012-06-01 | 2013-12-18 | 汉达精密电子(昆山)有限公司 | Electrophoresis processing method for aluminium alloy with matting mirror effect and product of the method |
| CN103451709B (en) * | 2012-06-01 | 2016-04-20 | 汉达精密电子(昆山)有限公司 | Tool sand sense mirror aluminum alloy electrophoretic process method and products thereof |
| CN103628116A (en) * | 2012-08-29 | 2014-03-12 | 汉达精密电子(昆山)有限公司 | Die casting surface treatment method and product thereof |
| CN103101253A (en) * | 2013-01-23 | 2013-05-15 | 陕西生益科技有限公司 | Copper surface processing technique for manufacturing thick copper-clad laminated board |
| CN103101253B (en) * | 2013-01-23 | 2016-02-03 | 陕西生益科技有限公司 | A kind of for making the copper process of surface treatment covering thick copper layer pressing plate |
| CN103526211A (en) * | 2013-09-30 | 2014-01-22 | 贵州凯星液力传动机械有限公司 | Processing method for aluminum sheet valve in fuel channel of injector |
| CN106272091A (en) * | 2016-08-15 | 2017-01-04 | 合肥江淮铸造有限责任公司 | A kind of cleaning technology of diesel engine cylinder block |
| CN109811391A (en) * | 2019-01-21 | 2019-05-28 | 四会市国耀铝业有限公司 | A kind of waterproof aluminum alloy casement window electrophoresis lacquered surface processing method |
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Application publication date: 20110209 |