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CN107675229A - A kind of high temperature is without nickel hole sealing agent - Google Patents

A kind of high temperature is without nickel hole sealing agent Download PDF

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Publication number
CN107675229A
CN107675229A CN201710903628.6A CN201710903628A CN107675229A CN 107675229 A CN107675229 A CN 107675229A CN 201710903628 A CN201710903628 A CN 201710903628A CN 107675229 A CN107675229 A CN 107675229A
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China
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high temperature
sealing agent
hole sealing
acid
nickel hole
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CN107675229B (en
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傅利平
焦艳超
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Shanghai Strong Intelligent Technology Co Ltd
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Shanghai Strong Intelligent Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02Anodisation
    • C25D11/04Anodisation of aluminium or alloys based thereon
    • C25D11/18After-treatment, e.g. pore-sealing
    • C25D11/24Chemical after-treatment
    • C25D11/246Chemical after-treatment for sealing layers

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Detergent Compositions (AREA)

Abstract

The present invention relates to a kind of high temperature without nickel hole sealing agent, the high temperature is the aqueous solution without nickel hole sealing agent, the high temperature includes 20 50g/L silicate, 10 30g/L surfactant, 10 40g/L hydroxide without nickel hole sealing agent, and 3 15g/L carbon number is 6 10 alcohol compound and 0.1 3g/L sulfydryl aliphatic acid acid ethylhexyl.The high temperature of the present invention has good sealing of hole effect without nickel hole sealing agent.

Description

A kind of high temperature is without nickel hole sealing agent
Technical field
The present invention relates to a kind of high temperature without nickel hole sealing agent.
Background technology
Light metal material, such as aluminium, magnesium, zinc, titanium, aluminium alloy, magnesium alloy, kirsite and titanium alloy etc., there is density Small, conductive and heat-conductive ability is strong, excellent in mechanical performance and can secondary operation the advantages that, therefore obtained in national economy extensive Using., generally need to be to light gold but light metal material is typically easily corroded, therefore in order to better profit from light metal material Category material be surface-treated to avoid light metal material from being corroded, at present using it is more be to light metal material progress anode Oxidation.
Traditional anode oxidation process flow is:Removing oil-removing wax → chemical polishing → anodic oxidation → sealing of hole → drying is (every Step all need sufficiently to be washed), when the color to light metal material requires, can before sealing of hole to anodic oxidation after Light metal material dyed.
The anode oxidation membrane of light metal material is fine and close porous layer, has higher adsorption capacity, is easily adsorbed with Evil material so as to cause light metal material contaminated or premature corrosion, therefore in order to avoid being contaminated because of absorption harmful substance or Premature corrosion, sealing pores need to be carried out to the light metal material after anodic oxidation.The closing of aluminium and its alloy anodized film, it is The nanoscale hole hole on its surface is blocked using method physically or chemically, so as to reduce the porosity of anode oxide film and suction Attached performance, improve the hardness and decay resistance of anode oxide film.
The aluminium and its method for sealing of alloy anodized film being used both at home and abroad at present mainly have boiling water or high temperature to steam Vapour hole sealing technology, nickel salt or cobalt salt hole sealing technology and calcium and magnesium salt hole sealing technology.The principle of boiling water or high-temperature steam hole sealing technology Simply, the closed process of film is exactly the hydro-combination process of aluminum oxide, and operation temperature is the major control factors of speed in a closed circuit, water quality The outward appearance and speed in a closed circuit of meeting significant impact close membrane, excessive calcium ions and magnesium ions, pore membrane can be made spot occur and close ash, and mistake More silicate or phosphate can draw up the hydrolysis of film.The shortcomings that this technology is that energy consumption is big and very high to water quality requirement.
Nickel salt or cobalt salt sealing technique usually contain the heavy metal ion such as nickel or cobalt, natural, ecological are endangered serious.It is existing In technology, main problem is that, hole sealing agent is relatively difficult in more than 20 microns thicker anode oxide films of closing.Seal simultaneously Stream color is serious when closing organic dye film, and film is easy to change, and product surface has washmarking generation after drying.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of high temperature without nickel hole sealing agent, the high temperature is without nickel sealing of hole Agent is the aqueous solution, and the high temperature includes 20-50g/L silicate, 10-30g/L surfactant, 10- without nickel hole sealing agent 40g/L hydroxide, 3-15g/L carbon number is 6-10 alcohol compound and 0.1-3g/L sulfydryl aliphatic acid acid Ethylhexyl.
As a kind of perferred technical scheme, the sulfydryl aliphatic acid acid ethylhexyl is selected from 3- mercaptopropionic acid -2- ethyls One or more in own ester, thioglycollic acid-2-ethyl hexyl ester, sulfydryl formic acid -2- ethylhexyls.
As a kind of perferred technical scheme, the silicate is selected from one or both of sodium metasilicate, potassium silicate.
As a kind of perferred technical scheme, the hydroxide selection potassium hydroxide, one kind in sodium hydroxide or two Kind.
As a kind of perferred technical scheme, the carbon number be 6-10 alcohol compound be selected from 2- ethyl butanols, One or more in 2- ethylpentanols, 2-Ethylhexyl Alcohol, 2- ethyls octanol, 2- ethyl nonyl alcohols.
As a kind of perferred technical scheme, the surfactant is selected from anion surfactant, non-ionic surface One or both of activating agent.
As a kind of perferred technical scheme, the anion surfactant be selected from polyoxyethylene alkyl ether sulfate salt, Linear alkylbenzene sulfonate (LAS), alkyl sulfate, alcohol sulfate, secondary paraffin sulfonate, alpha-alkene sulfonate, α-sulfofatty acid esters One or more in salt, aliphatic acid polyethenoxy ether sulfate, polyoxyethylene alkyl ether carboxylate.
As a kind of perferred technical scheme, the nonionic surfactant be selected from higher alcohol ethylene oxide adduct, Alkyl phenol ethylene oxide addition product, fatty acid oxidation Addition on ethylene thing, polyol fatty acid ester ethylene oxide adduct, advanced alkane Base amine ethylene oxide adduct, fatty acid alkanol amides ethylene oxide adduct, Oxidation of Fat and Oils Addition on ethylene thing, polyoxyalkylene are embedding It is section copolymer, fatty acid glyceride, pentaerythritol fatty ester, sorbitan fatty ester, sucrose fatty ester, polynary One or more in alcohol alkyl ether, ethyl alcohol amine fatty acid amide.
As a kind of perferred technical scheme, the surfactant is selected from alcohol sulfate and sorbitan fatty acid The mixture of ester.
The surfactant is selected from the mixture of isooctanol sodium sulphate and sorbitan stearate.
Anode oxide film of the metal material surface thickness higher than 10 microns uses hole sealing agent high temperature hole sealing provided by the invention Afterwards, metal material also has good surface effect after the salt spray test of the time of 2500 hours, it can be seen that the present invention High temperature there is good sealing of hole effect without nickel hole sealing agent.
The above-mentioned of the application and other features, aspect and advantage is more readily understood with reference to described further below.
Embodiment
Unless otherwise defined, all technologies used herein and scientific terminology have and the common skill of art of the present invention The identical implication that art personnel are generally understood that.When contradiction be present, the definition in this specification is defined.
A kind of high temperature is without nickel hole sealing agent, it is characterised in that the high temperature is the aqueous solution without nickel hole sealing agent, and the high temperature is without nickel Hole sealing agent includes 20-50g/L silicate, 10-30g/L surfactant, 10-40g/L hydroxide, 3-15g/L's Carbon number is 6-10 alcohol compound and 0.1-3g/L sulfydryl aliphatic acid acid ethylhexyl.
As a preferred embodiment, the sulfydryl aliphatic acid acid ethylhexyl is selected from 3- mercaptopropionic acid -2- ethyls One or more in own ester, thioglycollic acid-2-ethyl hexyl ester, sulfydryl formic acid -2- ethylhexyls.
As a preferred embodiment, the silicate is selected from one or both of sodium metasilicate, potassium silicate.
As a preferred embodiment, the hydroxide selection potassium hydroxide, one kind in sodium hydroxide or two Kind.
As a preferred embodiment, the carbon number be 6-10 alcohol compound be selected from 2- ethyl butanols, One or more in 2- ethylpentanols, 2-Ethylhexyl Alcohol, 2- ethyls octanol, 2- ethyl nonyl alcohols.
As a preferred embodiment, the surfactant is selected from anion surfactant, non-ionic surface One or both of activating agent.
Anion surfactant:
In the present invention, the anion surfactant does not have other special limitations.For example, can be polyoxyethylene alkyl ether Sulfate, linear alkylbenzene sulfonate (LAS), alkyl sulfate, alcohol sulfate, secondary paraffin sulfonate, alpha-alkene sulfonate, α-thio Fatty acid ester salt, aliphatic acid polyethenoxy ether sulfate, polyoxyethylene alkyl ether carboxylate etc..
For example, described linear alkylbenzene sulfonate (LAS) is with the benzene sulfonate that carbon number is 8~16 alkyl or is Carbon number is 12~16 p alkylphenylaceticacid, it is preferable that has the benzene sulfonic acid that carbon number is 12~16 alkyl Salt, for example, neopelex, Potassium dodecylbenzenesulfonate, tridecyl benzene sulfonate, myristyl benzene sulfonic acid sodium salt, Pentadecylbenzene sulfonic acid sodium, cetyl benzenesulfonic acid sodium, hexadecyl diphenyloxide disulfonic acid sodium etc..
In one embodiment, the anion surfactant is cetyl benzenesulfonic acid sodium.
In a kind of preferable implementation, the anion surfactant is hexadecyl diphenyloxide disulfonic acid sodium.
Wherein, p alkylphenylaceticacid has the characteristics that low-temperature water-soluble is excellent, foaminess is moderate, its foam stabilization Class is poor, is easy to rinse, and washability is far above sodium alkyl benzene sulfonate in wider concentration range.
For example, described alkyl sulfate is with the alkyl sulfate that carbon number is 8~20 alkyl, for example, 12 Alkylsurfuric acid acid sodium, myristyl sulfate acid sodium, hexadecyl hydrosulfate acid sodium etc..
In one embodiment, the anion surfactant is dodecyl sulphate acid sodium.
For example, the alpha-alkene sulfonate for the alkyl that it is 8~20 with carbon number that described alpha-alkene sulfonate, which is, example Such as, α-benzene sodium sulfonate, α-hexadecylene hydrocarbon sulfonate sodium, α-octadecylene hydrocarbon sulfonate sodium, α-icosa alkene hydrocarbon sulfonate sodium.
In one embodiment, the anion surfactant is sodium tetradecene sulfonate.
For example, the alkyl that it is 8~20 with carbon number that described polyoxyethylene alkyl ether sulfate salt, which is, oxirane The polyoxyethylene alkyl ether sulfate salt that average addition molal quantity is 1~10.
As a preferred embodiment, described polyoxyethylene alkyl ether carboxylate be with carbon number be 8~ 20 alkyl, the polyoxyethylene alkyl ether carboxylate that the average addition molal quantity of oxirane is 1~10.
Make as a preferred embodiment, above anion surfactant one or more kinds of can mix With.
Nonionic surfactant:
In the present invention, the nonionic surfactant does not have other special limitations, primarily to improving cleaning agent The material of conformality, is solid can at room temperature, and preferably fusing point is more than 45 DEG C of material.As non-ionic surface active The example of agent, it can enumerate:Higher alcohol ethylene oxide adduct, alkyl phenol ethylene oxide addition product, fatty acid oxidation ethene add Into thing, polyol fatty acid ester ethylene oxide adduct, senior alkylamines ethylene oxide adduct, fatty acid alkanol amides oxidation Addition on ethylene thing, the ethylene oxide adduct of grease, the block copolymer (block of polyoxyethylene polyoxypropylene of polyoxyalkylene Copolymer, the block copolymer of polyoxyethylene polybutylene, the block copolymer of polyoxyethylene polyoxypropylene polybutylene Deng), the fatty acid ester of glycerine, the fatty acid ester of pentaerythrite, the fatty acid ester of D-sorbite, sorbitan fatty acid ester, The fatty acid ester of sucrose, the alkyl ether of polyalcohol, the fatty acid amide of ethyl alcohol amine;And in higher alcohol, alkyl phenol, fat It is embedding in the compounds containing reactive hydrogen such as acid, polyalcohol, senior alkylamines, fatty acid amide, grease or fatty acid alkanol amides Section addition polymerization butylene oxide and/or propylene oxide, then copolymer of addition polymerization ethylene oxide generation etc., but be not limited to this A bit.These may be used alone, can also be two or more kinds in combination.
In the embodiment of some, the nonionic surfactant is the block of polyethylene glycol oxide PPOX Copolymer, there is following structure:
R-O[(EO)a/(PO)b]-H
Wherein, R represent carbon number be 10~18, the alkyl that preferably carbon number is 12~14;A represents 0~20 number;B tables Show 0~20 number;Except both a and b are 0 situation.A is preferably 6~15, it is more preferred to which 7~12, b are preferably 0 ~10, it is more preferred to 1~5, particularly preferably 1~3.
In the present invention, " EO " refers to oxyethylene group;" PO " refers to oxypropylene group.
As a preferred embodiment, the surfactant is selected from alcohol sulfate and sorbitan fatty acid The mixture of ester.
As a preferred embodiment, the surfactant is selected from isooctanol sodium sulphate and anhydrosorbitol is hard The mixture of resin acid ester, the mass ratio of the isooctanol sodium sulphate and sorbitan stearate is 1:1-6.
Hereinafter, the present invention is explained in more detail by embodiment, it should be appreciated that these embodiments are only It is illustrating and nonrestrictive.If without other explanations, raw materials used is all commercially available.In following each embodiments, unless Specified otherwise, the solvent of solution used is water.The thickness of film layer is measured with Britain's production TMGII calibrators in embodiment.Implement The electrostatic coating equipment paint sprayer NDL-Q2 produced in example with the municipal Zhi Jie Electronics Co., Ltd.s in Wuhan carries out spraying colored paint And finish paint.
The present invention is described in detail referring to several examples.
Metal surface treatment process:
Removing oil-removing wax
The alloy degreasing powder that the aluminum alloy base material of model 6061 is immersed in 40 g/l, temperature is 60 DEG C (is purchased from Shenzhen The LD-208 alloys degreasing powder of De Sheng Chemical Co., Ltd.s of city) taken out after 5 minutes in solution, clean substrate surface with water Alloy degreasing powder.
Chemical polishing
It is 200 that metal material after above-mentioned carry out removing oil-removing wax, which is impregnated in by the phosphoric acid and concentration that concentration is 650 g/l, G/l sulfuric acid composition solution in after chemical polishing 3 seconds, be impregnated in immediately in water to clean the residual of substrate surface Acid, then base material is impregnated in 10 g/l of sodium hydroxide solution after 8 minutes, is impregnated in cleaning base material table in water immediately The alkali of the residual in face.
Anodic oxidation
Immersed the base material after above-mentioned carry out pre-treatment as anode in electrolyte, while using stainless steel as negative electrode, make negative electrode Electrically connected respectively with the positive pole and negative pole of power supply with anode.Using the sulfuric acid by 180 g/l, 8 g/l of aluminum sulfate group Into solution as electrolyte, regulation DC voltage is 13 volts, carries out anodic oxidation 35 minutes.Substrate surface is measured to be formed Thickness is the anode oxide film of 25-30 microns.Base material after anodic oxidation is toasted 0.5 hour in 100 DEG C of baking oven.
Sealing of hole
Anodic oxidation film thickness is randomly choosed 5 pieces for the polylith metal base of 25-30 microns, immerses following embodiments and contrast The hole sealing agent of example(30 times of dilution), sealing of hole is carried out within lower 10 minutes at 90 degrees Celsius.
Spraying
With spray gun the water that Huzhou Ji Fu new materials Co., Ltd produces is sprayed in the above-mentioned substrate surface carried out after anodic oxidation Property the UV colored varnishes, then in UV solidification cases with 1000 MJs/square centimeter, wavelength be 360 nanometers ultraviolet away from Place of 25 centimetres from base material is irradiated from the one side for being coated with the anti-UV colored varnishes completes UV solidifications for 1 minute, measures what is formed The thickness of top coat layer is 15-20 microns.
Embodiment 1
High temperature is without nickel hole sealing agent:
Sodium metasilicate 30g/L, isooctanol sodium sulphate 8g/L, sorbitan fatty ester 12g/L, sodium hydroxide 25g/L, it is different Octanol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 1.5g/L.
Embodiment 2
High temperature is without nickel hole sealing agent:
Sodium metasilicate 35g/L, isooctanol sodium sulphate 8g/L, sorbitan fatty ester 16g/L, sodium hydroxide 25g/L, it is different Octanol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 1.2g/L.
Embodiment 3
High temperature is without nickel hole sealing agent:
Sodium metasilicate 40g/L, isooctanol sodium sulphate 4g/L, sorbitan fatty ester 18g/L, sodium hydroxide 25g/L, it is different pungent Alcohol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 1g/L.
Embodiment 4
High temperature is without nickel hole sealing agent:
Sodium metasilicate 20g/L, isooctanol sodium sulphate 20g/L, sorbitan fatty ester 10g/L, sodium hydroxide 25g/L, it is different Octanol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 3g/L.
Embodiment 5
High temperature is without nickel hole sealing agent:
Sodium metasilicate 50g/L, isooctanol sodium sulphate 1g/L, sorbitan fatty ester 7g/L, sodium hydroxide 25g/L, it is different pungent Alcohol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 0.1g/L.
Comparative example 1
High temperature is without nickel hole sealing agent:
Sodium metasilicate 30g/L, isooctanol sodium sulphate 8g/L, sorbitan fatty ester 12g/L, sodium hydroxide 25g/L, it is different Octanol 10g/L.
Comparative example 2
High temperature is without nickel hole sealing agent:
Sodium metasilicate 30g/L, isooctanol sodium sulphate 8g/L, sorbitan fatty ester 12g/L, sodium hydroxide 25g/L, it is different Octanol 10g/L, phosphoric acid -2- ethylhexyls 1.5g/L.
Comparative example 3
High temperature is without nickel hole sealing agent:
Nano silicon 30g/L, isooctanol sodium sulphate 8g/L, sorbitan fatty ester 12g/L, sodium hydroxide 25g/ L, isooctanol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 1.5g/L.
Comparative example 4
High temperature is without nickel hole sealing agent:
Sodium metasilicate 30g/L, isooctanol sodium sulphate 8g/L, sorbitan fatty ester 12g/L, sodium hydroxide 25g/L, second Alcohol 10g/L, 3- mercaptopropionic acid -2- ethylhexyls 1.5g/L.
Salt spray test:
Corrosion resistance is weighed by salt spray test, and salt spray test method is by 5 piece of 6061 aluminium alloy base of same hole sealing agent sealing of hole Material is placed in the WY-60D type salt-mist corrosion testers of Dongguan City pairing Electronic Science and Technology Co., Ltd. production, and concentration is used at 35 DEG C After 5 weight % sodium-chloride water solution splash 16 hours, it is 40 DEG C, phase that base material is placed in into another temperature again after taking-up In the climatic chamber for being 80% to humidity, base material is observed, is recorded in how long exception occurs in rear substrate surface, the time gets over It is long, the maximum data and minimum data are removed, and calculate the average of time.
As can be seen that the high temperature hole sealing agent of the present invention has good sealing of hole effect.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is every The equivalent changes and modifications done according to present invention, it is encompassed by the scope of the claims of the present invention.

Claims (10)

1. a kind of high temperature is without nickel hole sealing agent, it is characterised in that the high temperature is the aqueous solution without nickel hole sealing agent, and the high temperature seals without nickel Hole agent includes 20-50g/L silicate, 10-30g/L surfactant, 10-40g/L hydroxide, 3-15g/L carbon Atomicity is 6-10 alcohol compound and 0.1-3g/L sulfydryl aliphatic acid acid ethylhexyl.
2. a kind of high temperature according to claim 1 is without nickel hole sealing agent, it is characterised in that the sulfydryl aliphatic acid acid ethyl hexyl One kind in 3- mercaptopropionic acid -2- ethylhexyls, thioglycollic acid-2-ethyl hexyl ester, sulfydryl formic acid -2- ethylhexyls of ester or It is several.
3. a kind of high temperature according to claim 2 is without nickel hole sealing agent, it is characterised in that the silicate be selected from sodium metasilicate, One or both of potassium silicate.
4. a kind of high temperature according to claim 3 is without nickel hole sealing agent, it is characterised in that the hydroxide selects hydroxide One or both of potassium, sodium hydroxide.
5. a kind of high temperature according to claim 4 is without nickel hole sealing agent, it is characterised in that the carbon number is 6-10 alcohol One kind in 2- ethyl butanols, 2- ethylpentanols, 2-Ethylhexyl Alcohol, 2- ethyls octanol, 2- ethyl nonyl alcohols of class compound or It is several.
6. a kind of high temperature according to claim 5 is without nickel hole sealing agent, it is characterised in that the surfactant be selected from it is cloudy from One or both of sub- surfactant, nonionic surfactant.
7. a kind of high temperature according to claim 6 is without nickel hole sealing agent, it is characterised in that the anion surfactant choosing Selfpolyoxyethylene alkyl ether sulfate, linear alkylbenzene sulfonate (LAS), alkyl sulfate, alcohol sulfate, secondary paraffin sulfonate, α-alkene One kind in sulfonated hydrocarbon, α-sulfofatty acid esters salt, aliphatic acid polyethenoxy ether sulfate, polyoxyethylene alkyl ether carboxylate It is or several.
8. a kind of high temperature according to claim 7 is without nickel hole sealing agent, it is characterised in that the nonionic surfactant choosing From higher alcohol ethylene oxide adduct, alkyl phenol ethylene oxide addition product, fatty acid oxidation Addition on ethylene thing, polyol fatty acid Ester ethylene oxide adduct, senior alkylamines ethylene oxide adduct, fatty acid alkanol amides ethylene oxide adduct, grease oxygen Change Addition on ethylene thing, polyalkylene block copolymers, fatty acid glyceride, pentaerythritol fatty ester, Sorbitan alcohol ester One or more in fat acid esters, sucrose fatty ester, polyol alkyl ether, ethyl alcohol amine fatty acid amide.
9. a kind of high temperature according to claim 8 is without nickel hole sealing agent, it is characterised in that the surfactant is selected from alcohol sulphur The mixture of hydrochlorate and sorbitan fatty ester.
10. a kind of high temperature according to claim 9 is without nickel hole sealing agent, it is characterised in that the surfactant is selected from different The mixture of octanol sodium sulphate and sorbitan stearate.
CN201710903628.6A 2017-09-29 2017-09-29 High-temperature nickel-free hole sealing agent Active CN107675229B (en)

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Publication number Priority date Publication date Assignee Title
CN114717630A (en) * 2022-03-18 2022-07-08 江门市优博科技有限公司 Novel environment-friendly sealing agent for aluminum and aluminum alloy anodic oxide film and preparation method thereof
CN115354379A (en) * 2022-08-16 2022-11-18 安徽韩铝环保新材料有限公司 High-temperature nickel-free hole sealing agent and hole sealing process

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CN103215630A (en) * 2013-04-23 2013-07-24 沈阳理工大学 Method for sealing aluminum alloy anode oxide film pore by adopting organic-inorganic composite silica sol
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CN106400085A (en) * 2016-06-21 2017-02-15 武汉风帆电化科技股份有限公司 Hole sealing agent and method for aluminum and aluminum alloy anode oxide film aftertreatment
CN106637338A (en) * 2016-12-06 2017-05-10 上海英汇科技发展有限公司 Anodic oxidation process for automobile aluminum alloy baggage holders

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US3961111A (en) * 1975-03-18 1976-06-01 Pennwalt Corporation Method of increasing corrosion resistance of anodized aluminum
CN101597784A (en) * 2008-06-04 2009-12-09 比亚迪股份有限公司 A kind of method for sealing of anode oxide film of light metal material
CN103215630A (en) * 2013-04-23 2013-07-24 沈阳理工大学 Method for sealing aluminum alloy anode oxide film pore by adopting organic-inorganic composite silica sol
CN103590086A (en) * 2013-11-14 2014-02-19 佛山市三水雄鹰铝表面技术创新中心有限公司 Nickel-free hole sealing agent for aluminum alloy and hole sealing treatment process of agent
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114717630A (en) * 2022-03-18 2022-07-08 江门市优博科技有限公司 Novel environment-friendly sealing agent for aluminum and aluminum alloy anodic oxide film and preparation method thereof
CN114717630B (en) * 2022-03-18 2024-05-10 江门市优博科技有限公司 Environment-friendly sealing agent for aluminum and aluminum alloy anodic oxide film and preparation method thereof
CN115354379A (en) * 2022-08-16 2022-11-18 安徽韩铝环保新材料有限公司 High-temperature nickel-free hole sealing agent and hole sealing process

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