CN104313582A - Novel aluminum alloy alkaline etching additive and preparation method thereof - Google Patents
Novel aluminum alloy alkaline etching additive and preparation method thereof Download PDFInfo
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- CN104313582A CN104313582A CN201410604894.5A CN201410604894A CN104313582A CN 104313582 A CN104313582 A CN 104313582A CN 201410604894 A CN201410604894 A CN 201410604894A CN 104313582 A CN104313582 A CN 104313582A
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Abstract
The invention discloses a novel aluminum alloy alkaline etching additive, wherein a processing agent comprises the following components: 30-50 parts of a chelating agent, 25-35 parts of a thickening agent, 10-20 parts of a promoter and 10-20 parts of a precipitating agent. An alkali sand process comprises the following steps: installing an aluminum alloy product on a hanger, removing oil first, and then placing the aluminum alloy product into an alkali sand solution at 50-70 DEG C for 3-10 minutes, taking out the aluminum product, washing twice, and spraying. According to the invention, the raw materials in the preparation method contain no harmful elements and are conducive to environmental protection; the novel aluminum alloy alkaline etching additive reduces the energy consumption in the use process and improves the yield of aluminum alloy product.
Description
Technical field
The present invention relates to one and the necessary operation additive of pre-treatment is carried out to aluminum alloy product surface, more specifically relate to a kind of novel aluminum alloy Alkaline addictive and preparation method thereof.
Background technology
Aluminium alloy Alkaline addictive effectively can prevent the accumulative of sodium metaaluminate and occur be hydrolyzed and precipitate, and it also also can obtain high-quality careful sand face.
Summary of the invention
The object of the invention is to overcome due to the accumulative of sodium metaaluminate and occur be hydrolyzed and precipitate produced deficiency, a kind of novel aluminum alloy Alkaline addictive of environmentally safe is provided.
Another object of the present invention is to the preparation technology that this novel aluminum alloy Alkaline addictive is provided.
For achieving the above object, this invention takes following technical scheme:
A kind of novel aluminum alloy Alkaline addictive, with parts by weight, described treatment agent comprises following component: the sequestrant of 30 ~ 50 parts, the thickening material of 25 ~ 35 parts, the promotor of 10 ~ 20 parts, the precipitation agent of 10 ~ 20 parts.
The sequestrant of described novel aluminum alloy Alkaline addictive is polyhydric organism, and such poly-hydroxy organism has at least one in Sunmorl N 60S, Trisodium Citrate, Seignette salt, sorbyl alcohol, N.F,USP MANNITOL etc.
The thickening material of described novel aluminum alloy Alkaline addictive is low molecule organic matter.Such organism is at least one in polyoxyethylene glycol, trolamine, glycerol, CMC, dextrin etc.
The promotor of described novel aluminum alloy Alkaline addictive is the inorganics of some halogenide, oxygenant.Such inorganics has at least one in Sodium Fluoride, sodium-chlor, sodium chlorate, Sodium Nitrite, SODIUMNITRATE, SPC-D, Sodium peroxoborate, ammonium meta-vanadate, phosphatization manganese etc.
The precipitation agent of described novel aluminum alloy Alkaline addictive is sulfide.Such sulfide has at least one in thiocarbamide, sodium sulphite, Sulfothiorine etc.
Described novel aluminum alloy Alkaline addictive technique, this technique comprises the steps:
A, polished aluminium is contained on hanger, first puts into 130 ~ 180g/L sulfuric acid or salpeter solution soaks 2 ~ 5 minutes, remove surface and oil contaminant and various inorganic pollutant, tap water washing secondary;
B, by obtain through a step process Al-alloy products be placed in containing Alkaline addictive 0.5 ~ 1.5% 5 ~ 10% sodium hydroxide solution, at 50 ~ 70 DEG C of temperature react 3 ~ 10 minutes, remove surperficial natural oxide film, tap water washing secondary; Involved concentration is weight percent concentration;
C, the aluminium parts through b step process is placed in massfraction is 15% sulfuric acid and 5% nitre aqueous acid, normal temperature ash disposal process 3 ~ 5 minutes, tap water washing secondary;
D, the Al-alloy products handled well through step c is carried out oxide treatment, electrolysis, then close or finished product after electrophoretic process.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention can overcome due to the accumulative of sodium metaaluminate and occur be hydrolyzed and precipitate produced deficiency, to environmentally safe;
2, preparation technology is simple, with low cost.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
With parts by weight, novel aluminum alloy Alkaline addictive is composed as follows:
Sunmorl N 60S: 35 parts, glycerol: 40 parts,
Sodium Fluoride: 10 parts, sodium sulphite: 15 parts.
The Al-alloy products that oil removing is good, put into temperature be 50 DEG C containing above-mentioned Alkaline addictive 0.5% 5% sodium hydroxide solution 5 minutes.Take out tap water washing secondary after Al-alloy products, neutralizing treatment and be oxidized rear enclosed.
Check specimen surface good luster, zero defect.
Embodiment 2
With parts by weight, novel aluminum alloy Alkaline addictive is composed as follows:
Sorbyl alcohol: 50 parts, trolamine: 30 parts,
Sodium-chlor: 10 parts, thiocarbamide: 10 parts.
The Al-alloy products that oil removing is good, put into temperature be 55 DEG C containing above-mentioned Alkaline addictive 1% 6% sodium hydroxide solution 5 minutes.After taking out Al-alloy products, Two-step neutralization process washed by tap water, oxidation rear enclosed.
Check specimen surface good luster, zero defect.
Embodiment 3
With parts by weight, novel aluminum alloy Alkaline addictive is composed as follows:
Trisodium Citrate: 40 parts, polyoxyethylene glycol: 30 parts,
Sodium chlorate: 15 parts, Sulfothiorine: 15 parts.
The Al-alloy products that oil removing is good, put into temperature be 50 DEG C containing above-mentioned Alkaline addictive 1.5% 7% sodium hydroxide solution 10 minutes.Take out tap water washing secondary after Al-alloy products, neutralizing treatment and be oxidized rear enclosed.
Check specimen surface good luster, zero defect, have careful sand face.
Only the present invention will be described for above embodiment, but the present invention is not limited in embodiment described herein, can by adding, changes, deletion etc. shift gears performance action effect of the present invention, be also contained in scope of the present invention.
Claims (10)
1. a novel aluminum alloy Alkaline addictive, is characterized in that, with parts by weight, described treatment agent comprises following component: the sequestrant of 30 ~ 50 parts, the thickening material of 25 ~ 35 parts, the promotor of 10 ~ 20 parts, the precipitation agent of 10 ~ 20 parts.
2. a kind of novel aluminum alloy Alkaline addictive according to claim 1, is characterized in that, the sequestrant of described aluminium alloy Alkaline addictive is polyhydric organism.
3. a kind of novel aluminum alloy Alkaline addictive according to claim 2, is characterized in that, described poly-hydroxy organism is at least one in Sunmorl N 60S, Trisodium Citrate, Seignette salt, sorbyl alcohol or N.F,USP MANNITOL.
4. a kind of novel aluminum alloy Alkaline addictive according to claim 1, is characterized in that, the thickening material of described aluminium alloy Alkaline addictive is low molecule organic matter.
5. a kind of novel aluminum alloy Alkaline addictive according to claim 4, is characterized in that, described low molecule organic matter is at least one in polyoxyethylene glycol, trolamine, glycerol, CMC or dextrin.
6. a kind of novel aluminum alloy Alkaline addictive according to claim 1, is characterized in that, the promotor of described aluminium alloy Alkaline addictive is the inorganics of halogenide or oxygenant.
7. a kind of novel aluminum alloy Alkaline addictive according to claim 6, it is characterized in that, described inorganics is at least one in Sodium Fluoride, sodium-chlor, sodium chlorate, Sodium Nitrite, SODIUMNITRATE, SPC-D, Sodium peroxoborate, ammonium meta-vanadate or phosphatization manganese.
8. a kind of novel aluminum alloy Alkaline addictive according to claim 1, is characterized in that, the precipitation agent of described aluminium alloy Alkaline addictive is sulfide.
9. a kind of novel aluminum alloy Alkaline addictive according to claim 8, is characterized in that, described sulfide is at least one in thiocarbamide, sodium sulphite or Sulfothiorine.
10. a preparation method for novel aluminum alloy Alkaline addictive, is characterized in that, comprises following technological step:
A, polished aluminium is contained on hanger, first puts into 130 ~ 180g/L sulfuric acid or salpeter solution soaks 2 ~ 5 minutes, remove surface and oil contaminant and various inorganic pollutant, tap water washing secondary;
B, by obtain through a step process Al-alloy products be placed in containing Alkaline addictive 0.5 ~ 1.5% 5 ~ 10% sodium hydroxide solution, at 50 ~ 70 DEG C of temperature react 3 ~ 10 minutes, remove surperficial natural oxide film, tap water washing secondary; Involved concentration is weight percent concentration;
C, the aluminium parts through b step process is placed in massfraction is 15% sulfuric acid and 5% nitre aqueous acid, normal temperature ash disposal process 3 ~ 5 minutes, tap water washing secondary;
D, the Al-alloy products handled well through step c is carried out oxide treatment, electrolysis, then close or finished product after electrophoretic process.
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CN111289514A (en) * | 2020-03-16 | 2020-06-16 | 中国兵器科学研究院宁波分院 | Method for displaying aluminum alloy macroscopic crystal grains and streamline |
CN112941526A (en) * | 2021-01-20 | 2021-06-11 | 浙江乔老爷铝业有限公司 | Aluminum profile surface treatment process with low aluminum consumption |
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CN102108512A (en) * | 2009-12-25 | 2011-06-29 | 比亚迪股份有限公司 | Chemical etching liquid for metals and etching method |
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CN104962920A (en) * | 2015-07-27 | 2015-10-07 | 马鞍山市华冶铝业有限责任公司 | Aluminum profile alkaline corrosion solution as well as preparation method, application and application method thereof |
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