CN109913873A - A kind of aluminium alloy Alkaline addictive and preparation method - Google Patents
A kind of aluminium alloy Alkaline addictive and preparation method Download PDFInfo
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Abstract
The present invention provides a kind of aluminium alloy Alkaline addictive and preparation methods, by mass percentage, the aluminium alloy Alkaline addictive is made of following raw material: scale inhibitor 73~89.5%, promotor 0~5%, precipitating reagent 5~10%, builder 5~10%, brightener 0.5~2%.Aluminium ion can be complexed in the aluminium alloy Alkaline addictive, the scale inhibitor contained, and the aluminium ion control upper limit for effectively improving Alkaline etchant inhibits fouling to promote the molten aluminum amount of alkaline etching slot；Contained precipitating reagent can eliminate the influence of the foreign ions such as zinc, the copper generated by long-time alkaline etching, reduce alkaline etching surface dust, prevent plough skin shape speck, extend alkaline etching slot service life；Contained alkaline etching promotor can accelerate alkaline etching speed, and alkaline etching slows caused by effectively solving because of the excessive tank liquor aging of aluminium composition；Contained builder can weaken the adhesive ability of alkaline etching dust and workpiece, the time required to reducing subsequent light step out；In addition the aluminium alloy Alkaline addictive also added brightener, can be improved workpiece treated glossiness.
Description
Technical field
The present invention relates to aluminium alloy anode oxide pretreatment technology fields, more particularly to a kind of aluminium alloy Alkaline addictive
And preparation method.
Background technique
A kind of processing technique that anodic oxidation is most widely used as aluminium and aluminum alloy surface, can improve aluminium significantly
And its performance of alloy, improve aluminium and its alloy surface hardness and wearability.
Sodium hydroxide solution alkali cleaning is used as aluminium alloy anode oxide is previous, to remove surface and oil contaminant and natural oxide film.
After alkaline etching flute length time use, sodium metaaluminate can be accumulated in tank liquor, cause alkaline etching to slow and facile hydrolysis fouling, and aluminium
Other metal components and foreign ion are accumulated in tank liquor in alloy easily leads to workpiece surface fouling and piebald occurs.
Summary of the invention
In view of the above situation, the present invention provides a kind of aluminium alloy Alkaline addictive, to promote the molten aluminum amount of alkaline etching slot, inhibits knot
Dirt improves the glossiness of aluminum alloy surface and extends alkaline etching slot service life.
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 73~89.5%, promotor 0~5%, precipitating reagent 5~10%, builder 5~10%, brightener 0.5~2%.
Wherein, the scale inhibitor are as follows: sodium citrate, sodium potassium tartrate tetrahydrate, sodium gluconate, heptose sodium sugar, hydroxy ethylidene two
Tetrasodium phosphate, aminotrimethylenephosphonic acid trisodium, five sodium of ethylene diamine tetra methylene phosphonic acid, in seven sodium of diethylene triamine pentamethylene phosphonic
It is at least one.
Wherein, the promotor are as follows: at least one of ammonium fluoride, potassium fluoride, sodium nitrite, sodium molybdate, ammonium persulfate.
Wherein, the precipitating reagent are as follows: at least one of ammonium sulfide, vulcanized sodium, thiocarbamide, sodium isothiocyanate.
Wherein, the builder are as follows: sodium pyrophosphate, sodium tripolyphosphate, calgon, sodium hypophosphite, dodecyl
At least one of benzene sulfonic acid sodium salt, lauryl sodium sulfate.
Wherein, the brightener are as follows: at least one of saccharin sodium, sodium alginate, sodium lignin sulfonate.
The aluminium alloy Alkaline addictive provided according to the present invention, the scale inhibitor contained can be complexed aluminium ion, effectively improve
The aluminium ion of Alkaline etchant manages the upper limit, to promote the molten aluminum amount of alkaline etching slot, inhibits fouling；Contained precipitating reagent can eliminate by it is long when
Between the influence of the foreign ions such as zinc, copper that generates of alkaline etching, reduce alkaline etching surface dust, prevent plough skin shape speck, extend alkali
Lose slot service life；Contained alkaline etching promotor can accelerate alkaline etching speed, effectively solve because of the excessive tank liquor aging of aluminium composition
Caused alkaline etching slows；Contained builder can weaken the adhesive ability of alkaline etching dust and workpiece, reduce subsequent light out
The time required to step；In addition the aluminium alloy Alkaline addictive also added brightener, can be improved workpiece treated glossiness.
The present invention also provides the preparation methods of above-mentioned aluminium alloy Alkaline addictive, comprising:
By mass percentage, following raw material is weighed: scale inhibitor 73~89.5%, promotor 0~5%, precipitating reagent 5~
10%, builder 5~10%, brightener 0.5~2%；
Load weighted raw material is put into double cone dryer, in vacuum degree≤- 0.09MPa, the condition that 25~35 DEG C of temperature
Under, for Stirring to being uniformly mixed, blowing simultaneously uses vacuum sealed package.
Wherein, under conditions of vacuum degree≤- 0.09MPa, 25~35 DEG C of temperature, 3~5h of Stirring to be uniformly mixed.
Wherein, using PE bags of vacuum sealed packages of black.
Specific embodiment
To facilitate the understanding of the present invention, below with reference to each embodiment to invention is more fully described, still, this
Invention can be realized in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
Example purpose be make it is more thorough and comprehensive to the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Embodiments of the present invention propose it is a kind of can promote the molten aluminum amount of alkaline etching slot, inhibit fouling, improve aluminum alloy surface
Glossiness and the aluminium alloy Alkaline addictive for extending alkaline etching slot service life.
The aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive are made of following raw material:
Scale inhibitor 73~89.5%, promotor 0~5%, precipitating reagent 5~10%, builder 5~10%, brightener 0.5~2%.
Wherein, the scale inhibitor are as follows: sodium citrate, sodium potassium tartrate tetrahydrate, sodium gluconate, heptose sodium sugar, hydroxy ethylidene two
Tetrasodium phosphate, aminotrimethylenephosphonic acid trisodium, five sodium of ethylene diamine tetra methylene phosphonic acid, in seven sodium of diethylene triamine pentamethylene phosphonic
It is at least one.
Wherein, the promotor are as follows: at least one of ammonium fluoride, potassium fluoride, sodium nitrite, sodium molybdate, ammonium persulfate.
Wherein, the precipitating reagent are as follows: at least one of ammonium sulfide, vulcanized sodium, thiocarbamide, sodium isothiocyanate.
Wherein, the builder are as follows: sodium pyrophosphate, sodium tripolyphosphate, calgon, sodium hypophosphite, dodecyl
At least one of benzene sulfonic acid sodium salt, lauryl sodium sulfate.
Wherein, the brightener are as follows: at least one of saccharin sodium, sodium alginate, sodium lignin sulfonate.
Divide multiple embodiments that the embodiment of the present invention is further detailed below.The embodiment of the present invention be not limited to
Under specific embodiment.Within the scope of the unchanged main rights, implementation can appropriate be changed.
Embodiment 1:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 75%, promotor 5%, precipitating reagent 10%, builder 9.5%, brightener 0.5%.
Wherein, the scale inhibitor are as follows: sodium citrate and sodium gluconate.
Wherein, the promotor are as follows: sodium molybdate.
Wherein, the precipitating reagent are as follows: ammonium sulfide.
Wherein, the builder are as follows: sodium pyrophosphate and neopelex.
Wherein, the brightener are as follows: sodium alginate.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh respectively by weight percentage 40 parts of sodium gluconates, 40 parts of sodium citrates, 5 parts of sodium molybdates, 10 parts of ammonium sulfides,
7.5 parts of sodium pyrophosphates, 2 parts of neopelexes, 0.5 part of sodium alginate are successively put into above-mentioned each into double cone dryer
Raw material, for Stirring 4h to being uniformly mixed, blowing uses PE bags of black immediately at vacuum degree≤- 0.09MPa, 25~35 DEG C of temperature
Vacuum sealed package.
Embodiment 2:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 89.5%, precipitating reagent 5%, builder 5%, brightener 0.5%.
Wherein, the scale inhibitor are as follows: sodium potassium tartrate tetrahydrate and sodium gluconate.
Wherein, the precipitating reagent are as follows: thiocarbamide.
Wherein, the builder are as follows: sodium tripolyphosphate.
Wherein, the brightener are as follows: saccharin sodium.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 5 parts of sodium potassium tartrate tetrahydrates, 84.5 parts of sodium gluconates, 5 parts of thiocarbamides, 5 parts of trimerization phosphorus respectively by weight percentage
Sour sodium, 0.5 part of saccharin sodium, above-mentioned each raw material is successively put into double cone dryer, in vacuum degree≤- 0.09MPa, temperature 25~
For Stirring 3h to being uniformly mixed, blowing uses PE bags of vacuum sealed packages of black immediately at 35 DEG C.
Embodiment 3:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 85%, precipitating reagent 7%, builder 7.5%, brightener 0.5%.
Wherein, the scale inhibitor are as follows: sodium gluconate, aminotrimethylenephosphonic acid trisodium and ethylene diamine tetra methylene phosphonic acid five
Sodium.
Wherein, the precipitating reagent are as follows: thiocarbamide.
Wherein, the builder are as follows: sodium tripolyphosphate and lauryl sodium sulfate.
Wherein, the brightener are as follows: saccharin sodium.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 35 parts of sodium gluconates, 30 parts of aminotrimethylenephosphonic acid trisodiums, 20 parts of ethylenediamines respectively by weight percentage
Four methylenephosphonic acids, five sodium, 7 parts of thiocarbamides, 5.5 parts of sodium tripolyphosphates, 2 parts of lauryl sodium sulfate, 0.5 part of saccharin sodium, it is dry to bipyramid
Above-mentioned each raw material is successively put into dry device, Stirring 4h is equal to mixing at vacuum degree≤- 0.09MPa, 25~35 DEG C of temperature
Even, blowing uses PE bags of vacuum sealed packages of black immediately.
Embodiment 4:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 80%, promotor 4%, precipitating reagent 10%, builder 5%, brightener 1%.
Wherein, the scale inhibitor are as follows: heptose sodium sugar.
Wherein, the promotor are as follows: sodium nitrite.
Wherein, the precipitating reagent are as follows: sodium isothiocyanate.
Wherein, the builder are as follows: calgon.
Wherein, the brightener are as follows: sodium lignin sulfonate.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 80 parts of heptose sodium sugars, 4 parts of sodium nitrites, 10 parts of sodium isothiocyanates, 5 part of six inclined phosphorus respectively by weight percentage
Sour sodium, 1 part of sodium lignin sulfonate, above-mentioned each raw material are successively put into double cone dryer, in vacuum degree≤- 0.09MPa, temperature
For Stirring 5h to being uniformly mixed, blowing uses PE bags of vacuum sealed packages of black immediately at 25~35 DEG C.
Embodiment 5:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 73%, promotor 5%, precipitating reagent 10%, builder 10%, brightener 2%.
Wherein, the scale inhibitor are as follows: sodium citrate and sodium potassium tartrate tetrahydrate.
Wherein, the promotor are as follows: sodium nitrite.
Wherein, the precipitating reagent are as follows: vulcanized sodium.
Wherein, the builder are as follows: sodium tripolyphosphate.
Wherein, the brightener are as follows: saccharin sodium.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 40 parts of sodium potassium tartrate tetrahydrates, 33 parts of sodium citrates, 5 parts of sodium nitrites, 10 parts of vulcanizations respectively by weight percentage
Sodium, 10 parts of sodium tripolyphosphates, 2 parts of saccharin sodiums, above-mentioned each raw material is successively put into double cone dryer, vacuum degree≤-
0.09MPa, for Stirring 4h to being uniformly mixed, blowing uses PE bags of vacuum sealed packages of black immediately at 25~35 DEG C of temperature.
Embodiment 6:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 80%, promotor 2%, precipitating reagent 8%, builder 9%, brightener 1%.
Wherein, the scale inhibitor are as follows: seven sodium of sodium citrate and diethylene triamine pentamethylene phosphonic.
Wherein, the promotor are as follows: potassium fluoride.
Wherein, the precipitating reagent are as follows: thiocarbamide.
Wherein, the builder are as follows: sodium hypophosphite.
Wherein, the brightener are as follows: sodium lignin sulfonate.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 60 parts of sodium citrates, 20 parts of seven sodium of diethylene triamine pentamethylene phosphonic, 2 parts of fluorinations respectively by weight percentage
Potassium, 8 parts of thiocarbamides, 9 parts of sodium hypophosphites, 1 part of sodium lignin sulfonate, above-mentioned each raw material is successively put into double cone dryer,
Vacuum degree≤- 0.09MPa, for Stirring 3h to being uniformly mixed, blowing uses PE bags of vacuum of black close immediately at 25~35 DEG C of temperature
Package dress.
Embodiment 7:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 80%, promotor 5%, precipitating reagent 5%, builder 8.5%, brightener 1.5%.
Wherein, the scale inhibitor are as follows: sodium citrate and sodium gluconate.
Wherein, the promotor are as follows: ammonium persulfate.
Wherein, the precipitating reagent are as follows: vulcanized sodium.
Wherein, the builder are as follows: sodium pyrophosphate and neopelex.
Wherein, the brightener are as follows: sodium alginate.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 40 parts of sodium gluconates, 40 parts of sodium citrates, 5 parts of ammonium persulfates, 5 parts of vulcanizations respectively by weight percentage
Ammonium, 7.5 parts of sodium pyrophosphates, 1 part of neopelex, 1.5 parts of sodium alginates, successively put into above-mentioned into double cone dryer
Each raw material, for Stirring 4h to being uniformly mixed, blowing uses black PE immediately at vacuum degree≤- 0.09MPa, 25~35 DEG C of temperature
Bag vacuum sealed package.
Embodiment 8:
A kind of aluminium alloy Alkaline addictive, by mass percentage, the aluminium alloy Alkaline addictive is by following raw material group
At: scale inhibitor 80%, promotor 5%, precipitating reagent 6%, builder 8%, brightener 1%.
Wherein, the scale inhibitor are as follows: four sodium of sodium gluconate and 1-hydroxy ethylidene-1,1-diphosphonic acid.
Wherein, the promotor are as follows: ammonium fluoride.
Wherein, the precipitating reagent are as follows: vulcanized sodium.
Wherein, the builder are as follows: sodium pyrophosphate and neopelex.
Wherein, the brightener are as follows: saccharin sodium.
Above-mentioned aluminium alloy Alkaline addictive the preparation method comprises the following steps:
Weigh 65 parts of sodium gluconates, 15 parts of four sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid, 5 parts of ammonium fluorides, 6 respectively by weight percentage
Part vulcanized sodium, 7 parts of sodium pyrophosphates, 1 part of neopelex, 1 part of saccharin sodium, successively put into above-mentioned into double cone dryer
Each raw material, for Stirring 4h to being uniformly mixed, blowing uses black PE immediately at vacuum degree≤- 0.09MPa, 25~35 DEG C of temperature
Bag vacuum sealed package.
For the effect for verifying aluminium alloy Alkaline addictive of the invention, the Alkaline addictive of each embodiment is taken to be configured to effectively
Naoh concentration 5%, Alkaline addictive additive amount 15g/L, the Alkaline etchant of aluminium ion concentration 30g/L, to aluminium profiles at 25 DEG C
Material carries out alkaline etching processing, is in addition compareed with the Alkaline etchant without adding Alkaline addictive and (see the table below embodiment 9).
1 alkaline etching Contrast on effect of table
As can be seen from the above data, Alkaline addictive of the invention can improve alkaline etching slot aluminium capacity, stability is good, inhibits
Fouling, degreasing result is good, promotes brightness, and molten aluminium speed is moderate to can effectively prevent excessive erosion, extends alkaline etching slot service life.
To sum up, the aluminium alloy Alkaline addictive provided according to the present invention, can be with the sodium hydroxide solution of conventional alkaline
It is used cooperatively, promotes the performance of alkali wash water, aluminium ion can be complexed in the scale inhibitor which contains, and effectively improve the aluminium of Alkaline etchant
Ion manages the upper limit, to promote the molten aluminum amount of alkaline etching slot, inhibits fouling；Contained precipitating reagent can be eliminated to be generated by long-time alkaline etching
The foreign ions such as zinc, copper influence, reduce alkaline etching surface dust, prevent plough skin shape speck, extend alkaline etching slot and use the longevity
Life；Contained alkaline etching promotor can accelerate alkaline etching speed, alkaline etching caused by effectively solving because of the excessive tank liquor aging of aluminium composition
It slows；Contained builder can weaken the adhesive ability of alkaline etching dust and workpiece, reduce subsequent light step out and taken
Between；In addition the aluminium alloy Alkaline addictive also added brightener, can be improved workpiece treated glossiness.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of aluminium alloy Alkaline addictive, which is characterized in that by mass percentage, the aluminium alloy Alkaline addictive by with
Lower raw material composition: scale inhibitor 73~89.5%, promotor 0~5%, precipitating reagent 5~10%, builder 5~10%, brightener
0.5~2%.
2. aluminium alloy Alkaline addictive according to claim 1, which is characterized in that the scale inhibitor are as follows: sodium citrate, wine
Stone acid potassium sodium, sodium gluconate, heptose sodium sugar, four sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid, aminotrimethylenephosphonic acid trisodium, ethylenediamine tetramethyl
Pitch at least one of five sodium of phosphonic acids, seven sodium of diethylene triamine pentamethylene phosphonic.
3. aluminium alloy Alkaline addictive according to claim 1, which is characterized in that the promotor are as follows: ammonium fluoride, fluorination
At least one of potassium, sodium nitrite, sodium molybdate, ammonium persulfate.
4. aluminium alloy Alkaline addictive according to claim 1, which is characterized in that the precipitating reagent are as follows: ammonium sulfide, vulcanization
At least one of sodium, thiocarbamide, sodium isothiocyanate.
5. aluminium alloy Alkaline addictive according to claim 1, which is characterized in that the builder are as follows: sodium pyrophosphate, three
At least one of polyphosphate sodium, calgon, sodium hypophosphite, neopelex, lauryl sodium sulfate.
6. aluminium alloy Alkaline addictive according to claim 1, which is characterized in that the brightener are as follows: saccharin sodium, seaweed
At least one of sour sodium, sodium lignin sulfonate.
7. a kind of preparation method of aluminium alloy Alkaline addictive characterized by comprising
By mass percentage, weigh following raw material: scale inhibitor 73~89.5%, promotor 0~5%, precipitating reagent 5~10%,
Builder 5~10%, brightener 0.5~2%；
Load weighted raw material is put into double cone dryer, under conditions of vacuum degree≤- 0.09MPa, 25~35 DEG C of temperature, rotation
Turn stirring to being uniformly mixed, blowing simultaneously uses vacuum sealed package.
8. the preparation method of aluminium alloy Alkaline addictive according to claim 7, which is characterized in that vacuum degree≤-
0.09MPa, under conditions of 25~35 DEG C of temperature, 3~5h of Stirring is to being uniformly mixed.
9. the preparation method of aluminium alloy Alkaline addictive according to claim 7, which is characterized in that true using black PE bags
Empty sealed package.
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| CN112760647A (en) * | 2020-12-04 | 2021-05-07 | 马鞍山市华冶铝业有限责任公司 | Scale-inhibiting brightening aluminum alloy alkaline etching solution and preparation method thereof |
| CN114262895A (en) * | 2021-01-20 | 2022-04-01 | 佛山市顺德区美硕金属表面技术有限公司 | Aluminum material alkaline etching additive and preparation method thereof |
| CN114669813A (en) * | 2022-03-18 | 2022-06-28 | 中南大学 | Electrolytic milling method for aluminum alloy |
| CN115011813A (en) * | 2022-08-05 | 2022-09-06 | 中国科学院过程工程研究所 | Scale inhibitor and preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112760647A (en) * | 2020-12-04 | 2021-05-07 | 马鞍山市华冶铝业有限责任公司 | Scale-inhibiting brightening aluminum alloy alkaline etching solution and preparation method thereof |
| CN114262895A (en) * | 2021-01-20 | 2022-04-01 | 佛山市顺德区美硕金属表面技术有限公司 | Aluminum material alkaline etching additive and preparation method thereof |
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