CN105239065A - Aluminum board purifying process - Google Patents
Aluminum board purifying process Download PDFInfo
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- CN105239065A CN105239065A CN201510749916.1A CN201510749916A CN105239065A CN 105239065 A CN105239065 A CN 105239065A CN 201510749916 A CN201510749916 A CN 201510749916A CN 105239065 A CN105239065 A CN 105239065A
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- aluminum board
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- aluminium sheet
- aluminum plate
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- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
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Abstract
The invention relates to an aluminum board purifying process which comprises the following steps: (1) putting an aluminum board surface into a soaking slot to carry out soaking treatment by use of a sodium bicarbonate solution, then, using soft cloth to wipe the aluminum board surface, and flushing the aluminum board with clear water; (2) drying the aluminum board surface, uniformly spraying silver oxide powder on the aluminum board surface, and wiping an aluminum board which is sprayed with the silver oxide power by use of the soft cloth which is dipped with kerosene; (3) soaking the aluminum board by use of the sodium bicarbonate solution, and cleaning the aluminum board; (4) purifying the aluminum board; and (5) flushing the aluminum board which is subjected to passivating treatment, and drying the aluminum board. According to the method, when the aluminum board is treated, firstly, the aluminum board is cleaned and then wiped by use of the silver oxide and kerosene, so that foreign matters on the surface of the aluminum board can be removed, and follow-up passivating uniformity and density of a passivating layer also can be improved; after the treatment, the thickness of the passivating layer can be increased, so that the corrosion resistance of the aluminum board and the flatness of the passivated aluminum board surface are greatly improved.
Description
Technical field
The invention belongs to field of metal surface treatment, be specifically related to a kind of aluminium sheet passivation technology.
Background technology
Al and Alalloy be current applications very widely, one of most economical applicable material.World aluminum output occupies first of non-ferrous metal within 1956, beginning to exceed copper output always.The output of current aluminium and consumption (calculating by ton) are only second to steel, become the second largest metal of mankind's application; And the resource of aluminium is very abundant, according to predesigne, the mineral reserve storage capacity of aluminium accounts for more than 8% of earth's crust constitute.Aluminium is of many uses, although aluminium surface in put procedure also can be oxidized, but its density and homogeneity poor, at some special dimensions, need surface of aluminum plate to carry out Passivation Treatment, prevent aluminium from corroding, the density of existing deactivating process for the treatment of passivation is not high, and the thinner thickness of passivation layer, easily come off.
Summary of the invention
The object of this invention is to provide a kind of aluminium sheet passivation technology, passivation is carried out to surface of aluminum plate, improve the antiseptic property of aluminium sheet.
A kind of aluminium sheet passivation technology, comprises the following steps:
(1), by surface of aluminum plate put into soaking compartment and use 40 DEG C, the massfraction sodium hydrogen carbonate solution immersion treatment 60-72s that is 3-4%, then use soft cloth wiping surface of aluminum plate, and use clear water to rinse well;
(2), by the surface of aluminum plate that step (1) is handled well dry at 30 DEG C of-40 DEG C of temperature, then evenly spray silver oxide powder in surface of aluminum plate, fountain height is 55-62g/m
2, then use the soft cloth being moistened with kerosene to have the aluminium sheet of silver oxide powder to carry out wiping to sprinkling, pressure during wiping is 0.35-0.42Mpa, and the wiping time is 5-8min;
(3), by the aluminium sheet that step (2) is handled well use 28 DEG C, the massfraction sodium hydrogen carbonate solution immersion treatment 3-5min that is 3-4%, then use washed with de-ionized water, deionized water temperature is 22 DEG C-28 DEG C;
(4) aluminium sheet, above-mentioned steps handled well uses inactivating treatment liquid at 25-32 DEG C of Passivation Treatment 25-33min;
(5) aluminium sheet, by Passivation Treatment completed uses deionized water rinsing clean, dries at 35-40 DEG C.
Preferably, described inactivating treatment liquid comprises treatment solution A and treatment solution B, and in treatment solution A, silane coupling agent mass concentration is 1.2-1.5%, mixed amine mass concentration 4.3-5.8%, dimethyl formamide mass concentration 1.5-3% surplus be water and solubility promoter; In treatment solution B, the mass concentration of sodium dichromate 99 is 8-15%, and surplus is water, and adjustment PH is 4.5-6; During use, first use treatment solution A process 10-15min, then use treatment solution B process.
Can use a small amount of conventional dissolving adjuvants when in the present invention prepared by reagent, solubility promoter usage quantity is less than 5%.
Beneficial effect of the present invention: method of the present invention is when to aluminium sheet process, first use silver suboxide after cleaning and carry out wiping with kerosene, the foreign matter of surface of aluminum plate can be removed, homogeneity when can promote again follow-up passivation and the density of passivation layer, when promoting aluminium sheet spraying after passivation and the cohesiveness of coating, and after process, the thickness of passivation layer can be increased, greatly promote the planeness of surface of aluminum plate after the Corrosion Protection of aluminium sheet and passivation.
Temperature and time in the present invention in each step controls, the Passivation Treatment effect of aluminium sheet is had a great impact, the present invention also demonstrates differing temps and time controling, when changing temperature and time, carry out salt-fog test, after result display condition changes, salt-fog test time shorten, within the scope of 100-263h, illustrates that condition of the present invention controls to produce fabulous effect.
Embodiment
Embodiment 1
A kind of aluminium sheet passivation technology, comprises the following steps:
(1), by surface of aluminum plate put into soaking compartment use 40 DEG C, massfraction be 3.5% sodium hydrogen carbonate solution immersion treatment 65s, then use soft cloth wiping surface of aluminum plate, and use clear water to rinse well;
(2), by the surface of aluminum plate that step (1) is handled well dry at 32 DEG C of temperature, then evenly spray silver oxide powder in surface of aluminum plate, fountain height is 58g/m
2, then use the soft cloth being moistened with kerosene to have the aluminium sheet of silver oxide powder to carry out wiping to sprinkling, pressure during wiping is 0.4Mpa, and the wiping time is 6min;
(3), by the aluminium sheet that step (2) is handled well use 28 DEG C, the massfraction sodium hydrogen carbonate solution immersion treatment 3min that is 3-4%, then use washed with de-ionized water, deionized water temperature is 25 DEG C;
(4) aluminium sheet, above-mentioned steps handled well uses inactivating treatment liquid at 28 DEG C of Passivation Treatment 28min;
(5) aluminium sheet, by Passivation Treatment completed uses deionized water rinsing clean, dries at 36 DEG C.
Described inactivating treatment liquid comprises treatment solution A and treatment solution B, and in treatment solution A, silane coupling agent mass concentration is 1.5%, mixed amine mass concentration 4.8%, dimethyl formamide mass concentration 2% surplus be water; In treatment solution B, the mass concentration of sodium dichromate 99 is 12%, and surplus is water, regulates PH to be 6; During use, first use treatment solution A process 15min, then use treatment solution B process.
Salt-fog test is used to test the aluminium sheet after process of the present invention:
Adopt 5% the sodium chloride salt aqueous solution, solution pH value be 6.5 as spray solution.Test temperature is 35 DEG C, and the rate of descent of salt fog is 2.2ml/80cm2.h, spray pressure: 0.05Mpa.
Experimentally standard, the hickie that gets rusty starts to stop experiment, experiment repetition 3 times, and experimental result is as follows: 624h; 622h; 628h.
Embodiment 2
A kind of aluminium sheet passivation technology, comprises the following steps:
(1), by surface of aluminum plate put into soaking compartment use 40 DEG C, massfraction be 4% sodium hydrogen carbonate solution immersion treatment 70s, then use soft cloth wiping surface of aluminum plate, and use clear water to rinse well;
(2), by the surface of aluminum plate that step (1) is handled well dry at 30 DEG C of temperature, then evenly spray silver oxide powder in surface of aluminum plate, fountain height is 60g/m
2, then use the soft cloth being moistened with kerosene to have the aluminium sheet of silver oxide powder to carry out wiping to sprinkling, pressure during wiping is 0.38Mpa, and the wiping time is 8min;
(3), by the aluminium sheet that step (2) is handled well use 28 DEG C, massfraction be 4% sodium hydrogen carbonate solution immersion treatment 4min, then use washed with de-ionized water, deionized water temperature is 25 DEG C;
(4) aluminium sheet, above-mentioned steps handled well uses inactivating treatment liquid at 25 DEG C of Passivation Treatment 30min;
(5) aluminium sheet, by Passivation Treatment completed uses deionized water rinsing clean, dries at 35 DEG C.
Preferably, described inactivating treatment liquid comprises treatment solution A and treatment solution B, and in treatment solution A, silane coupling agent mass concentration is 1.4%, mixed amine mass concentration 5.2%, dimethyl formamide mass concentration 2.3% surplus be water; In treatment solution B, the mass concentration of sodium dichromate 99 is 15%, and surplus is water, regulates PH to be 6; During use, first use treatment solution A process 12min, then use treatment solution B process.
Salt-fog test is used to test the aluminium sheet after process of the present invention:
Adopt 5% the sodium chloride salt aqueous solution, solution pH value be 6.5 as spray solution.Test temperature is 35 DEG C, and the rate of descent of salt fog is 2.2ml/80cm2.h, spray pressure: 0.05Mpa.
Experimentally standard, the hickie that gets rusty starts to stop experiment, experiment repetition 3 times, and experimental result is as follows: 658h; 671h; 664h.
Embodiment 3
A kind of aluminium sheet passivation technology, comprises the following steps:
(1), by surface of aluminum plate put into soaking compartment use 40 DEG C, massfraction be 3.5% sodium hydrogen carbonate solution immersion treatment 64s, then use soft cloth wiping surface of aluminum plate, and use clear water to rinse well;
(2), by the surface of aluminum plate that step (1) is handled well dry at 32 DEG C of temperature, then evenly spray silver oxide powder in surface of aluminum plate, fountain height is 59g/m
2, then use the soft cloth being moistened with kerosene to have the aluminium sheet of silver oxide powder to carry out wiping to sprinkling, pressure during wiping is 0.4Mpa, and the wiping time is 7min;
(3), by the aluminium sheet that step (2) is handled well use 28 DEG C, massfraction be 4% sodium hydrogen carbonate solution immersion treatment 3min, then use washed with de-ionized water, deionized water temperature is 26 DEG C;
(4) aluminium sheet, above-mentioned steps handled well uses inactivating treatment liquid at 28 DEG C of Passivation Treatment 30min;
(5) aluminium sheet, by Passivation Treatment completed uses deionized water rinsing clean, dries at 36 DEG C.
Preferably, described inactivating treatment liquid comprises treatment solution A and treatment solution B, and in treatment solution A, silane coupling agent mass concentration is 1.5%, mixed amine mass concentration 5%, dimethyl formamide mass concentration 1.8% surplus be water; In treatment solution B, the mass concentration of sodium dichromate 99 is 12%, and surplus is water, regulates PH to be 5.5; During use, first use treatment solution A process 13min, then use treatment solution B process.
Salt-fog test is used to test the aluminium sheet after process of the present invention:
Adopt 5% the sodium chloride salt aqueous solution, solution pH value be 6.5 as spray solution.Test temperature is 35 DEG C, and the rate of descent of salt fog is 2.2ml/80cm2.h, spray pressure: 0.05Mpa.
Experimentally standard, the hickie that gets rusty starts to stop experiment, experiment repetition 3 times, and experimental result is as follows: 618h; 622h; 623h.
Claims (2)
1. an aluminium sheet passivation technology, is characterized in that, comprises the following steps:
(1), by surface of aluminum plate put into soaking compartment and use 40 DEG C, the massfraction sodium hydrogen carbonate solution immersion treatment 60-72s that is 3-4%, then use soft cloth wiping surface of aluminum plate, and use clear water to rinse well;
(2), by the surface of aluminum plate that step (1) is handled well dry at 30 DEG C of-40 DEG C of temperature, then evenly spray silver oxide powder in surface of aluminum plate, fountain height is 55-62g/m
2, then use the soft cloth being moistened with kerosene to have the aluminium sheet of silver oxide powder to carry out wiping to sprinkling, pressure during wiping is 0.35-0.42Mpa, and the wiping time is 5-8min;
(3), by the aluminium sheet that step (2) is handled well use 28 DEG C, the massfraction sodium hydrogen carbonate solution immersion treatment 3-5min that is 3-4%, then use washed with de-ionized water, deionized water temperature is 22 DEG C-28 DEG C;
(4) aluminium sheet, above-mentioned steps handled well uses inactivating treatment liquid at 25-32 DEG C of Passivation Treatment 25-33min;
(5) aluminium sheet, by Passivation Treatment completed uses deionized water rinsing clean, dries at 35-40 DEG C.
2. a kind of aluminium sheet passivation technology according to claim 1, it is characterized in that, described inactivating treatment liquid comprises treatment solution A and treatment solution B, and in treatment solution A, silane coupling agent mass concentration is 1.2-1.5%, mixed amine mass concentration 4.3-5.8%, dimethyl formamide mass concentration 1.5-3% surplus be water; In treatment solution B, the mass concentration of sodium dichromate 99 is 8-15%, and surplus is water, and adjustment PH is 4.5-6; During use, first use treatment solution A process 10-15min, then use treatment solution B process.
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| CN201510749916.1A CN105239065B (en) | 2015-11-06 | 2015-11-06 | A kind of aluminium sheet passivation technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951091A (en) * | 2016-05-31 | 2016-09-21 | 刘洪建 | Efficient passivation technology for aluminum material |
| CN105951090A (en) * | 2016-05-31 | 2016-09-21 | 刘洪建 | Passivation method of aluminium plate |
| CN106048628A (en) * | 2016-06-18 | 2016-10-26 | 安徽昊博健身器材有限公司 | Surface treatment method for aluminum alloy fastener |
| CN106086844A (en) * | 2016-06-18 | 2016-11-09 | 安徽昊博健身器材有限公司 | A kind of surface treatment method of aluminum |
| CN106086845A (en) * | 2016-06-18 | 2016-11-09 | 安徽昊博健身器材有限公司 | A kind of surface treatment method of 4A01 aluminium alloy |
| CN114248065A (en) * | 2020-09-22 | 2022-03-29 | 北京中研建科科技产业发展有限公司 | Aluminum template production and installation process and machining device |
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| US20070012930A1 (en) * | 2004-06-17 | 2007-01-18 | Yu-Chuan Liu | High brightness light-emitting device and manufacturing process of the light-emitting device |
| CN103447220A (en) * | 2013-08-13 | 2013-12-18 | 河南辉龙铝业股份有限公司 | Aluminum profile spraying process |
| CN104498920A (en) * | 2014-11-28 | 2015-04-08 | 安徽华灿彩钢薄板科技有限公司 | Color steel plate processing method |
| CN104975280A (en) * | 2015-07-01 | 2015-10-14 | 江西飞达新材料科技股份有限公司 | Cold-rolled steel sheet passivating treatment method |
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2015
- 2015-11-06 CN CN201510749916.1A patent/CN105239065B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070012930A1 (en) * | 2004-06-17 | 2007-01-18 | Yu-Chuan Liu | High brightness light-emitting device and manufacturing process of the light-emitting device |
| CN103447220A (en) * | 2013-08-13 | 2013-12-18 | 河南辉龙铝业股份有限公司 | Aluminum profile spraying process |
| CN104498920A (en) * | 2014-11-28 | 2015-04-08 | 安徽华灿彩钢薄板科技有限公司 | Color steel plate processing method |
| CN104975280A (en) * | 2015-07-01 | 2015-10-14 | 江西飞达新材料科技股份有限公司 | Cold-rolled steel sheet passivating treatment method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951091A (en) * | 2016-05-31 | 2016-09-21 | 刘洪建 | Efficient passivation technology for aluminum material |
| CN105951090A (en) * | 2016-05-31 | 2016-09-21 | 刘洪建 | Passivation method of aluminium plate |
| CN106048628A (en) * | 2016-06-18 | 2016-10-26 | 安徽昊博健身器材有限公司 | Surface treatment method for aluminum alloy fastener |
| CN106086844A (en) * | 2016-06-18 | 2016-11-09 | 安徽昊博健身器材有限公司 | A kind of surface treatment method of aluminum |
| CN106086845A (en) * | 2016-06-18 | 2016-11-09 | 安徽昊博健身器材有限公司 | A kind of surface treatment method of 4A01 aluminium alloy |
| CN114248065A (en) * | 2020-09-22 | 2022-03-29 | 北京中研建科科技产业发展有限公司 | Aluminum template production and installation process and machining device |
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| CN105239065B (en) | 2017-10-10 |
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Denomination of invention: Aluminum board purifying process Effective date of registration: 20180320 Granted publication date: 20171010 Pledgee: The development of small and medium-sized enterprises financing Company Limited by Guarantee Jieshou City Pledgor: Anhui Feng Hui Metallgesellschaft AG Registration number: 2018340000076 |
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Date of cancellation: 20190319 Granted publication date: 20171010 Pledgee: The development of small and medium-sized enterprises financing Company Limited by Guarantee Jieshou City Pledgor: Anhui Feng Hui Metallgesellschaft AG Registration number: 2018340000076 |
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