CN103173830A - Surface treatment method of aluminum product - Google Patents
Surface treatment method of aluminum product Download PDFInfo
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- CN103173830A CN103173830A CN2011104383432A CN201110438343A CN103173830A CN 103173830 A CN103173830 A CN 103173830A CN 2011104383432 A CN2011104383432 A CN 2011104383432A CN 201110438343 A CN201110438343 A CN 201110438343A CN 103173830 A CN103173830 A CN 103173830A
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Abstract
The invention relates to the filed of process of aluminum products, and provides a surface treatment method of the aluminum product which is greater in non-stick surface performance as well as abrasive resistance. The specific technology comprises the following step of: sequentially treating the surface of the aluminum product by grinding, surface degreasing, anodizing and film coating and surface polishing. According to the surface treatment method of the aluminum product, the surface of the aluminum product is treated by anodizing, so that a layer of alumina films is coated on the surface of the aluminum product, and as a result, the wear resistance and corrosion resistance of the aluminum product are improved, the high temperature up to 450 DEG C can be resisted, and the heat absorptivity is higher; the surface of an oxide film is polished, therefore, the non-stick effect of the surface of the aluminum product is improved, and the problem that the surface of the aluminum product, in particular the surface of an aluminum table ware, is easily sticked is solved; and the polished surface of the aluminum is nicer.
Description
Technical field
The present invention relates to the aluminum products manufacture field, be specifically related to a kind of surface treatment method of aluminum products.
Background technology
aluminum metal is because its wear resisting property, corrosion resistance and good, be widely used, when it is used in field of tableware, in frying in shallow oil the processes such as stir-fry, easily food is bonded at the aluminum products surfaces, in order to prevent that food is bonded at the surface of aluminum products, generally the aluminum products surfaces is processed, commonly used have husky light, polishing, whiten, the spray high temperature varnish, the spray non-sticky metallic coating, the technique such as painted, yet, these techniques all have following shortcoming: have the stripping of aluminium molecule in use procedure, the duration of service of meeting variable color for a long time, play powder, the obscissions such as layering, also easily scratch, and can produce harmful material after high temperature, wear resisting property is also poor.Someone studied on the surface of aluminum products and carried out anodic oxidation treatment, and the oxide film that still forms not viscosity can not be good especially, and wear resisting property is good not.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of surface not viscosity energy, the better surface treating method for aluminum product of wear resisting property.
For achieving the above object, technical scheme that the present invention adopts is as follows: with the surface of aluminum products polish successively, oil removing, anodic oxidation plated film and polishing.
Described surface finish step is: polish in the surface to aluminum products, makes it more smooth.
Described surface degreasing step is: the aluminum products after described polishing are first carried out an oil removing with basic solution, then clean once, then carry out the secondary oil removing with acidic solution, then clean once, acidity and the basic solution of remnants are neutralized, and then clean three times.
described anodic oxidation plated film step is: anodic oxidation is carried out on the aluminum products surface after described oil removing, make its plated surface last layer oxide film, be specially: it is 3-5 degree centigrade that the aluminum products after described oil removing are put into temperature, in the sulfuric acid electrolyte of density 5%, insert the aluminum metal electrode as negative electrode in described electrolytic solution, the negative electrode of described electrode, the surface area ratio of anode is 1:1, pass into density and be electric current 45-80 minute of 2.5-3.0A/dm2, Surface Creation thickness at described aluminum products is the oxide film of 30-45um, when described oxide film forms in aluminum alloy surface, hardness reaches 400-600HV, when high-purity aluminium surface forms hardness up to 2000HV more than.
Described surface finish step is: polishing is carried out on the aluminum products surface after described plating oxide film.
Also can add the sealing step between surface coating and surface finish step, described sealing step is: at temperature 50-60 degree centigrade, water-lute is carried out on described aluminum products surface with oxidation film layer, the sealing time is 20-25 minute, then carry out warm wash twice, spray again cleaning once, with described aluminum products oven dry.
The present invention has following beneficial effect:
(1) anodic oxidation treatment is carried out on the surface of aluminum products, make described aluminum products plated surface last layer
Pellumina, when described pellumina forms in aluminum alloy surface, hardness reaches 400-600HV, when high-purity aluminium surface forms hardness up to 2000HV more than, make the hardness on aluminum products surfaces higher, so wear resisting property is better compared to existing technology, can with steel wire lump even fine sandpaper etc. scrub also and can not damage.
(2) because the anode hardening oxidation membrane tissue is fine and close, tack is good, is that one deck chemically reactive is very steady
Fixed aluminum metal oxide compound can effectively suppress aluminum ions free separating out, so the oxide film corrosion resistance nature is better, makes the corrosion resistance nature of these aluminum products better.
(3) oxide film can high temperature resistantly reach 450 degrees centigrade, and heat absorption rate is high, makes aluminum products at high temperature make
Life-span used time is longer, and efficient is higher;
(4) carry out again polished finish on the oxide film surface, make the aluminum products surfaces more smooth, so the not viscosity of aluminum products can obtain lifting by a relatively large margin, solve aluminum products, especially the easy sticking problem in aluminium tableware surface, and after polishing, this aluminum products surface is more attractive in appearance.
Embodiment
Describe the present invention in detail below in conjunction with specific implementation method, be used for explaining the present invention in schematic enforcement of the present invention and explanation, but not as a limitation of the invention.
The invention discloses a kind of surface not viscosity energy, the better surface treating method for aluminum product of wear resisting property.
For achieving the above object, technical scheme that the present invention adopts is as follows:
Embodiment 1
the surface treatment of aluminum pot: polish in the surface to aluminum pot, aluminum pot after described polishing is first carried out an oil removing with basic solution, then clean once with clear water, carry out the secondary oil removing with acidic solution again, clean once again, acidic solution and the basic solution of remnants are neutralized, and then clean three times with clear water, aluminum products after described oil removing being put into temperature again is 4 degrees centigrade, in the sulfuric acid electrolyte of density 5%, insert aluminum metal as negative electrode in described electrolytic solution, aluminum products itself are as anode, the negative electrode of described electrode, the surface area ratio of anode is 1:1, pass into density and be the electric current 60 minutes of 2.8A/dm2, Surface Creation thickness at described aluminum products is the pellumina of 45um, when described pellumina forms in aluminum alloy surface, hardness reaches 400-600HV, when high-purity aluminium surface forms hardness up to 2000HV more than, at this moment, the hardness of aluminum products is higher, wear resisting property is better compared to existing technology, also reached certain not sticking effect, then 55 degrees centigrade of temperature, water-lute is carried out on described aluminum products surface with oxidation film layer, the sealing time is 20 minutes, then carry out warm wash twice, spray cleaning once with clear water again, with described aluminum products oven dry, at last polishing is carried out on the aluminum products surface after described encapsulation process, the not sticking effect in aluminum products surface after polishing is promoted by a relatively large margin.
Embodiment 2
the surface treatment of aluminium meal basin: polish in the surface to aluminium meal basin, aluminum pot after described polishing is first carried out an oil removing with basic solution, then clean once with clear water, carry out the secondary oil removing with acidic solution again, clean once again, acidic solution and the basic solution of remnants are neutralized, and then clean three times with clear water, aluminum products after described oil removing being put into temperature again is 3 degrees centigrade, in the sulfuric acid electrolyte of density 5%, electrode insertion in described electrolytic solution, the negative electrode of described electrode, the surface area ratio of anode is 1:1, pass into density and be the electric current 80 minutes of 3.0A/dm2, Surface Creation thickness at described aluminum products is the oxide film of 35um, when described oxide film forms in aluminum alloy surface, hardness reaches 400-600HV, when high-purity aluminium surface forms hardness up to 2000HV more than, at this moment, the hardness of aluminum products is higher, wear resisting property is better compared to existing technology, also reached certain not sticking effect, then 60 degrees centigrade of temperature, water-lute is carried out on described aluminum products surface with oxidation film layer, the sealing time is 23 minutes, then carry out warm wash twice, spray cleaning once with clear water again, with described aluminum products oven dry, at last polishing is carried out on the aluminum products surface after described encapsulation process, the not sticking effect in aluminum products surface after polishing is promoted by a relatively large margin.
Embodiment 3
the surface treatment of aluminium service plate: polish in the surface to the aluminium service plate, aluminum pot after described polishing is first carried out an oil removing with basic solution, then clean once with clear water, carry out the secondary oil removing with acidic solution again, clean once again, acidic solution and the basic solution of remnants are neutralized, and then clean three times with clear water, aluminum products after described oil removing being put into temperature again is 3 degrees centigrade, in the sulfuric acid electrolyte of density 5%, electrode insertion in described electrolytic solution, the negative electrode of described electrode, the surface area ratio of anode is 1:1, pass into density and be the electric current 45 minutes of 2.0A/dm2, Surface Creation thickness at described aluminum products is the oxide film of 30um, when described oxide film forms in aluminum alloy surface, hardness reaches 400-600HV, when high-purity aluminium surface forms hardness up to 2000HV more than, at this moment, the hardness of aluminum products is higher, wear resisting property is better compared to existing technology, also reached certain not sticking effect, then 50 degrees centigrade of temperature, water-lute is carried out on described aluminum products surface with oxidation film layer, the sealing time is 20 minutes, then carry out warm wash twice, spray cleaning once with clear water again, with described aluminum products oven dry, at last polishing is carried out on the aluminum products surface after described encapsulation process, the not sticking effect in aluminum products surface after polishing is promoted by a relatively large margin.
In sum, the present invention has following beneficial effect:
(1) anodic oxidation treatment is carried out on the surface of aluminum products, make described aluminum products plated surface last layer
Pellumina, when described pellumina forms in aluminum alloy surface, hardness reaches 400-600HV, when high-purity aluminium surface forms hardness up to 2000HV more than, make the hardness on aluminum products surfaces higher, so wear resisting property is better compared to existing technology, can with steel wire lump even fine sandpaper etc. scrub also and can not damage.
(2) because the anode hardening oxidation membrane tissue is fine and close, tack is good, is that one deck chemically reactive is very steady
Fixed aluminum metal oxide compound can effectively suppress aluminum ions free separating out, so the oxide film corrosion resistance nature is better, makes the corrosion resistance nature of these aluminum products better.
(3) oxide film can high temperature resistantly reach 450 degrees centigrade, and heat absorption rate is high, when making aluminum products at high temperature use the life-span longer, efficient is higher;
(4) carry out again polished finish on the oxide film surface, make the aluminum products surfaces more smooth, so the not viscosity of aluminum products can obtain lifting by a relatively large margin, solve aluminum products, especially the easy sticking problem in aluminium tableware surface, and after polishing, this aluminum products surface is more attractive in appearance.
The above technical scheme that the embodiment of the present invention is provided is described in detail, used specific case herein principle and the embodiment of the embodiment of the present invention are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the present invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the present invention, all will change on embodiment and range of application, in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. the surface treatment method of aluminum products, is characterized in that, comprises the step that next coming in order are implemented:
Surface finish, surface degreasing, anodic oxidation plated film and surface finish.
2. the surface treatment method of aluminum products according to claim 1 is characterized in that:
Described surface finish step is: polish in the surface to aluminum products, makes it more smooth;
Described surface degreasing step is: the aluminum products after described polishing are first carried out an oil removing with basic solution, then clean once, then carry out the secondary oil removing with acidic solution, then clean once, acidity and the basic solution of remnants are neutralized, and then clean three times;
Described anodic oxidation plated film step is: anodic oxidation is carried out on the aluminum products surface after described oil removing, make its plated surface last layer oxide film, be specially: it is 3-5 degree centigrade, the sulfuric acid electrolyte of density 5% that the aluminum products after described oil removing are put into temperature, insert the aluminum metal electrode as negative electrode in described electrolytic solution, the negative electrode of described electrode, the surface area ratio of anode are 1:1, passing into density and be electric current 45-80 minute of 2.5-3.0A/dm2, is the oxide film of 30-45um at the Surface Creation thickness of described aluminum products;
Described surface finish step is: polishing is carried out on the aluminum products surface after described plating oxide film.
3. the surface treatment method of aluminum products according to claim 1 is characterized in that:
Also can add the sealing step between anodic oxidation plated film and surface finish step, described sealing step is: at temperature 50-60 degree centigrade, water-lute is carried out on described aluminum products surface with oxidation film layer, the sealing time is 20-25 minute, then carry out warm wash twice, spray again cleaning once, then with described aluminum products oven dry.
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| CN2011104383432A CN103173830A (en) | 2011-12-24 | 2011-12-24 | Surface treatment method of aluminum product |
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| CN2011104383432A CN103173830A (en) | 2011-12-24 | 2011-12-24 | Surface treatment method of aluminum product |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313535A (en) * | 2014-09-12 | 2015-01-28 | 湖州鑫隆镀膜科技有限公司 | Production method of fouling-resistant chrome-plated product |
| CN104342735A (en) * | 2013-08-06 | 2015-02-11 | 绿点高新科技股份有限公司 | Surface treatment method for aluminum product |
| CN105252348A (en) * | 2015-10-29 | 2016-01-20 | 无锡桥阳机械制造有限公司 | Grinding technology |
| CN105697719A (en) * | 2016-02-26 | 2016-06-22 | 薛元良 | Surface abrasion-resistant treatment method for speed change gear box gear and speed changer synchronous gear ring |
| CN108150061A (en) * | 2018-02-12 | 2018-06-12 | 广东光耀玻璃有限公司 | A kind of temperature-regulating glass and preparation method thereof |
| CN111020665A (en) * | 2019-12-17 | 2020-04-17 | 江门市安诺特炊具制造有限公司 | Pretreatment process for spraying ceramic non-stick coating on aluminum alloy cooker |
| CN111096674A (en) * | 2019-12-05 | 2020-05-05 | 金华乐嘉厨具有限公司 | Manufacturing process of non-stick shovel-resistant cookware based on integral shot blasting |
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| CN1125786A (en) * | 1994-12-26 | 1996-07-03 | 邓志强 | Surface processing method of high-hardness aluminum or aluminum alloy tack-free pot |
| JPH11181595A (en) * | 1997-12-19 | 1999-07-06 | Sky Alum Co Ltd | High strength aluminum-zinc-magnesium-copper base alloy alumite(r) member excellent in heating crack resistance and its production |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342735A (en) * | 2013-08-06 | 2015-02-11 | 绿点高新科技股份有限公司 | Surface treatment method for aluminum product |
| CN104313535A (en) * | 2014-09-12 | 2015-01-28 | 湖州鑫隆镀膜科技有限公司 | Production method of fouling-resistant chrome-plated product |
| CN105252348A (en) * | 2015-10-29 | 2016-01-20 | 无锡桥阳机械制造有限公司 | Grinding technology |
| CN105697719A (en) * | 2016-02-26 | 2016-06-22 | 薛元良 | Surface abrasion-resistant treatment method for speed change gear box gear and speed changer synchronous gear ring |
| CN108150061A (en) * | 2018-02-12 | 2018-06-12 | 广东光耀玻璃有限公司 | A kind of temperature-regulating glass and preparation method thereof |
| CN111096674A (en) * | 2019-12-05 | 2020-05-05 | 金华乐嘉厨具有限公司 | Manufacturing process of non-stick shovel-resistant cookware based on integral shot blasting |
| CN111020665A (en) * | 2019-12-17 | 2020-04-17 | 江门市安诺特炊具制造有限公司 | Pretreatment process for spraying ceramic non-stick coating on aluminum alloy cooker |
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