CN102560592A - Production technology for raising corrosion resistance of aluminium tubes - Google Patents

Production technology for raising corrosion resistance of aluminium tubes Download PDF

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Publication number
CN102560592A
CN102560592A CN2010105876377A CN201010587637A CN102560592A CN 102560592 A CN102560592 A CN 102560592A CN 2010105876377 A CN2010105876377 A CN 2010105876377A CN 201010587637 A CN201010587637 A CN 201010587637A CN 102560592 A CN102560592 A CN 102560592A
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China
Prior art keywords
solution
aluminium tube
treatment
water
clear water
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CN2010105876377A
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Chinese (zh)
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黄爱华
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ZHANGJIAGANG HUAYANG METAL CO Ltd
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ZHANGJIAGANG HUAYANG METAL CO Ltd
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Abstract

The invention provides a production technology for raising corrosion resistance of aluminium tubes, comprising the following steps: carrying out solution treatment on the aluminium tubes with the solid solution temperature of 400-450 DEG C and the solid solution time of 30-180 min, using water as a quenching medium with the water temperature of 20-45 DEG C, limiting the time of moving from solution treatment to quenching treatment to 1-15 s, carrying out aging treatment by using a cycle stirring oil bath furnace with the aging temperature of 90-140 DEG C and the aging time of 17-29 h; removing oil and washing with clear water; putting the aluminium tubes in a sulfuric acid solution, and limiting the solution temperature to 20-25 DEG C, wherein the specific gravity of the solution is about 1.128-1.135; soaking all the aluminium tubes in the solution for 30-35 min under a 15-20V voltage; then taking out the aluminium tubes and washing with clear water, and immersing into clear water; and then immediately immersing into a 40-45 DEG C colouring solution for soaking, soaking in light color for 45 s- 1 min 30 s, and soaking in dark color for 5-8 min, washing with clear water, then boiling in 90-95 DEG C distilled water with the pH value of 5.6-5.8 for 30-35 min, recovering the boiled aluminium tubes; and finally packaging. The technology has the advantages of simple process, easy control, high efficiency, low cost, low device investment, wide coloring gamut, and brilliant color.

Description

Improve the production technique of aluminium tube erosion resistance
Technical field
The present invention relates to a kind of production technique that improves the aluminium tube erosion resistance.
Background technology
Along with aluminum smelting technology and Processing Technology Development; Aluminium tube is in light weight, and specific tenacity, specific rigidity and shearing resistance are high, and thermal expansivity is low; Advantage such as thermostability, heat conduction, conduction, corrosion resistance nature are good becomes the ideal material in fields such as automobile, electronic industry gradually.
Abroad advanced industrialized country such as states such as American and Britain, Japan are counted from the '20s exploitation industrial production aluminium tube anode oxide film, and over nearly 60 years, the development of the process for treating surface of aluminium tube is very rapid.With light industrial goods, use automatic equipment, the product that the strict process oxidation is come out, through offset printing, heat transfer printing is painted, and ornamental processing such as electrophoretic painting is with making product give very attractive in appearance, exquisite outward appearance.The aluminium tube industry starting of China is slower, but development is also very fast.Just only have several peanuts to have till now to spread all over the country more than 100 than large enterprises from liberating, YO is above 50,000 tons.But along with living standards of the people improve constantly; Aluminium tube still can not satisfy the people's lives demand far away, particularly compares with external like product, aspect quality and pattern variety; Have a long way to go, shown that China's aluminium tube processing and process for treating surface are backward relatively.In recent years, through frequent domestic and international scientific and technological exchange, and scientific worker's effort, test and adopted some novel procesies and new technology, but generally speaking, China aluminium tube process for treating surface aspect still was in developing period leaved for development.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of production technique that improves the aluminium tube erosion resistance be provided, make that its technology is simple, control easily, efficient is high, cost is low, facility investment is few, wide, the corrosion-resistant height of painted colour gamut, lovely luster.
The object of the invention is realized through following technical scheme:
Improve the production technique of aluminium tube erosion resistance, it is characterized in that may further comprise the steps:
1. aluminium tube is carried out solution treatment, solid solubility temperature is at 400~450 ℃, and solution time is 30~180min; Adopting water then is quenchant; Water temperature is 20~45 ℃, is controlled at 1~15s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 90~140 ℃ of aging temps, aging time 17~29h;
2. the pre-treatment of aluminium tube: oil removing, clear water clean;
3. the anodic oxidation of aluminium tube and dyeing are handled: aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.128~1.135, and solution temperature is controlled at 20~25 ℃; Aluminium tube all is immersed in and carried out in the solution 30~35 minutes and be connected to 15~20V; Then aluminium tube takes out with clear water and cleans, and immerses clear water; Then immerse immediately in 40~45 ℃ the coloring liquid and soak, light color soaks 45s~1min30s; Dark 5~the 8min that soaks, after putting into clear water and cleaning, the zero(ppm) water of putting into 90~95 ℃ pH value 5.6~5.8 boils 30~35min, rewinding;
4. pack.
Further, the production technique of above-mentioned raising aluminium tube erosion resistance, wherein; Solid solubility temperature is at 420 ℃, and solution time is 100min, and adopting water then is quenchant; Water temperature is 25 ℃, is controlled at 5s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 100 ℃ of aging temps, aging time 20h.
Further, above-mentioned aluminium tube colored surfaces treatment process, wherein, the anodic oxidation of step aluminium tube 3. and dyeing are handled, and aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.130, and solution temperature is controlled at 20 ℃; Aluminium tube immerses in the solution and carries out 35min and be connected to 20V; Then immerse immediately in 45 ℃ the coloring liquid and soak, light color soaks 1min; Dark black soaks 8min, and after putting into clear water and cleaning, pH value is to boil rewinding 30 minutes in 5.6,95 ℃ the zero(ppm) water.
The substantive distinguishing features of technical scheme of the present invention is mainly reflected in progressive:
The present invention adopts solution treatment, quench treatment, ageing treatment, increases substantially corrosion resistance nature, and technology is simple simultaneously, control is easy, efficient is high, cost is low, facility investment is few, painted colour gamut is wide, bright in colour.
Embodiment
The present invention provides a kind of technological process of production that improves the aluminium tube erosion resistance: at first aluminium tube is carried out solution treatment, solid solubility temperature is at 400~450 ℃, and solution time is 30~180min; Employing water is quenchant; Water temperature is 20~45 ℃, is controlled at 1~15s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 90~140 ℃ of aging temps, aging time 17~29h; Then oil removing, clear water clean, and aluminium tube is put into sulphuric acid soln then, and solution proportion is about 1.128~1.135, and solution temperature is controlled at 20~25 ℃; Aluminium tube all is immersed in and carried out in the solution 30~35 minutes and be connected to 15~20V; Then aluminium tube takes out with clear water and cleans, and immerses clear water; Connect in the coloring liquid that immerses 40~45 ℃ immediately and soak, light color soaks 45s~1min30s; Dark 5~the 8min that soaks, after putting into clear water and cleaning, the zero(ppm) water of putting into 90~95 ℃ pH value 5.6~5.8 boils 30~35min, rewinding; Packing.
Embodiment 1
Aluminium tube is carried out solution treatment, and solid solubility temperature is at 400 ℃, and solution time is 170min; Adopting water then is quenchant; Water temperature is 30 ℃, is controlled at 10s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 90 ℃ of aging temps, aging time 27h;
The pre-treatment of aluminium tube: oil removing, clear water clean;
The anodic oxidation of aluminium tube and dyeing are handled: aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.128, and solution temperature is controlled at 24 ℃; Aluminium tube all is immersed in and carries out 30min in the solution and be connected to 18V; Then aluminium tube takes out with clear water and cleans, and immerses clear water; Then immerse immediately in 45 ℃ the coloring liquid and soak, light color soaks 45s; Dark color is soaked 6min, and after putting into clear water and cleaning, the zero(ppm) water of putting into 92 ℃ pH value 5.6 boils 32min, rewinding;
Packing.
Embodiment 2
Aluminium tube is carried out solution treatment, and solid solubility temperature is at 450 ℃, and solution time is 40min; Adopting water then is quenchant; Water temperature is 40 ℃, is controlled at 8s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 120 ℃ of aging temps, aging time 24h;
The pre-treatment of aluminium tube: oil removing, clear water clean;
The anodic oxidation of aluminium tube and dyeing are handled: aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.135, and solution temperature is controlled at 20 ℃; Aluminium tube all is immersed in and carries out 33min in the solution and be connected to 15V; Then aluminium tube takes out with clear water and cleans, and immerses clear water; Then immerse immediately in 44 ℃ the coloring liquid and soak, light color soaks 55s; The dark 5min30s that soaks, after putting into clear water and cleaning, the zero(ppm) water of putting into the pH value 5.8 of 90C boils 35min, rewinding;
Packing.
Embodiment 3
Aluminium tube is carried out solution treatment, and solid solubility temperature is at 440 ℃, and solution time is 80min; Adopting water then is quenchant; Water temperature is 45 ℃, is controlled at 12s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 130 ℃ of aging temps, aging time 18h;
The pre-treatment of aluminium tube: oil removing, clear water clean;
The anodic oxidation of aluminium tube and dyeing are handled: aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.133, and solution temperature is controlled at 25 ℃; Aluminium tube all is immersed in and carries out 30min in the solution and be connected to V; Then aluminium tube takes out with clear water and cleans, and immerses clear water; Then immerse immediately in 40~45 ℃ the coloring liquid and soak, light color soaks 45s; The dark 5min that soaks, after putting into clear water and cleaning, the zero(ppm) water of putting into 95 ℃ pH value 5.6 boils 32min, rewinding;
Packing.
The present invention adopts solution treatment, quench treatment, ageing treatment; Do not influencing on the aluminium tube intensity based; Increase substantially corrosion resistance nature, technology is simple simultaneously, control is easy, efficient is high, cost is low, facility investment is few, painted colour gamut is wide, bright in colour.
It is emphasized that: above only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims (3)

1. improve the production technique of aluminium tube erosion resistance, it is characterized in that may further comprise the steps:
1. aluminium tube is carried out solution treatment, solid solubility temperature is at 400~450 ℃, and solution time is 30~180min; Adopting water then is quenchant; Water temperature is 20~45 ℃, is controlled at 1~15s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 90~140 ℃ of aging temps, aging time 17~29h;
2. the pre-treatment of aluminium tube: oil removing, clear water clean;
3. the anodic oxidation of aluminium tube and dyeing are handled: aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.128~1.135, and solution temperature is controlled at 20~25 ℃; Aluminium tube all is immersed in and carries out 30~35min in the solution and be connected to 15~20V; Then aluminium tube takes out with clear water and cleans, and immerses clear water; Then immerse immediately in 40~45 ℃ the coloring liquid and soak, light color soaks 45s~1min30s; Dark 5~the 8min that soaks, after putting into clear water and cleaning, the zero(ppm) water of putting into 90~95 ℃ pH value 5.6~5.8 boils 30~35min, rewinding;
4. pack.
2. the production technique of raising aluminium tube erosion resistance according to claim 1 is characterized in that: said solid solubility temperature is at 420 ℃, and solution time is 100min; Adopting water then is quenchant; Water temperature is 25 ℃, is controlled at 5s from solution treatment to the quench treatment transfer process time, adopts circulation to stir oil bath furnace and carries out ageing treatment; 100 ℃ of aging temps, aging time 20h.
3. the production technique of raising aluminium tube erosion resistance according to claim 1; It is characterized in that: the anodic oxidation of said step aluminium tube 3. and dyeing are handled; Aluminium tube is put into sulphuric acid soln, and solution proportion is about 1.130, and solution temperature is controlled at 20 ℃; Aluminium tube immerses in the solution and carries out 35min and be connected to 20V; Then immerse immediately in 45 ℃ the coloring liquid and soak, light color soaks 1min; Dark black soaks 8min, and after putting into clear water and cleaning, pH value is to boil rewinding 30 minutes in 5.6,95 ℃ the zero(ppm) water.
CN2010105876377A 2010-12-14 2010-12-14 Production technology for raising corrosion resistance of aluminium tubes Pending CN102560592A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105543930A (en) * 2015-12-22 2016-05-04 安徽华东光电技术研究所 Aluminum insulating bush and preparation method thereof

Citations (3)

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Publication number Priority date Publication date Assignee Title
US6302976B1 (en) * 1997-02-20 2001-10-16 Tetra Laval Holdings & Finance S.A. Method of surface treating high-strength aluminum
CN101736212A (en) * 2008-11-26 2010-06-16 苏州有色金属研究院有限公司 Heat treatment method of aluminum-based composite material with corrosion resistance, high strength and high modulus
CN101429633B (en) * 2007-11-06 2010-10-13 中国科学院金属研究所 Thermal treatment process for improving high-strength aluminum alloy anti-stress corrosion performance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6302976B1 (en) * 1997-02-20 2001-10-16 Tetra Laval Holdings & Finance S.A. Method of surface treating high-strength aluminum
CN101429633B (en) * 2007-11-06 2010-10-13 中国科学院金属研究所 Thermal treatment process for improving high-strength aluminum alloy anti-stress corrosion performance
CN101736212A (en) * 2008-11-26 2010-06-16 苏州有色金属研究院有限公司 Heat treatment method of aluminum-based composite material with corrosion resistance, high strength and high modulus

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Title
张福元: ""铝的染色"", 《化学教学》, no. 4, 29 August 1990 (1990-08-29), pages 48 - 50 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105543930A (en) * 2015-12-22 2016-05-04 安徽华东光电技术研究所 Aluminum insulating bush and preparation method thereof

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Application publication date: 20120711