EP1245665A1 - Reiniger für Magnesium, Aluminium und deren Legierungen - Google Patents
Reiniger für Magnesium, Aluminium und deren Legierungen Download PDFInfo
- Publication number
- EP1245665A1 EP1245665A1 EP02006059A EP02006059A EP1245665A1 EP 1245665 A1 EP1245665 A1 EP 1245665A1 EP 02006059 A EP02006059 A EP 02006059A EP 02006059 A EP02006059 A EP 02006059A EP 1245665 A1 EP1245665 A1 EP 1245665A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acids
- cleaning solution
- aqueous cleaning
- water
- salts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 80
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims description 13
- 239000011777 magnesium Substances 0.000 title claims description 13
- 229910052749 magnesium Inorganic materials 0.000 title claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 9
- 229910052782 aluminium Inorganic materials 0.000 title claims description 8
- 229910045601 alloy Inorganic materials 0.000 title claims description 4
- 239000000956 alloy Substances 0.000 title claims description 4
- 239000004411 aluminium Substances 0.000 title 1
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- 239000012141 concentrate Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- ZJAOAACCNHFJAH-UHFFFAOYSA-N phosphonoformic acid Chemical class OC(=O)P(O)(O)=O ZJAOAACCNHFJAH-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000004673 fluoride salts Chemical class 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 230000009969 flowable effect Effects 0.000 claims abstract description 4
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical class OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 22
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 150000005323 carbonate salts Chemical class 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 2
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Classifications
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- C—CHEMISTRY; METALLURGY
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- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
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- C11D3/04—Water-soluble compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/34—Derivatives of acids of phosphorus
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/361—Phosphonates, phosphinates or phosphonites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/364—Organic compounds containing phosphorus containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/365—Organic compounds containing phosphorus containing carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/10—Salts
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/10—Salts
- C11D7/16—Phosphates including polyphosphates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/36—Organic compounds containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/16—Metals
Definitions
- the invention is in the field of cleaning metal surfaces, especially of surfaces made of magnesium, aluminum and their Alloys.
- the cleaning solution can be used in particular for Cleaning of the surfaces mentioned before a subsequent one Corrosion protection treatment, especially before a chrome-free one Conversion treatment. This is in turn preferably followed by one Painting, especially a powder or electro dip painting.
- the invention relates to concentrates in different forms, which at Dissolve in water to give an appropriate cleaning solution.
- the surface of magnesium or magnesium alloys can due to currently used cleaning products not sufficient for one subsequent conversion treatment to be prepared. Do you run after one Cleaning with conventional cleaners carries out a conversion treatment this often leads to an uneven coating of the metal surface. A Optimal functionality and a constant quality of pretreatment can cannot be guaranteed. For example, this can be seen in a Yellow chromating after cleaning in a different gray to yellow Coloring. Paint adhesion and corrosion protection are different on these colored areas fluctuating strongly.
- the cleaning solution should be particularly suitable for cleaning magnesium and Magnesium alloys.
- components are often made from different metals are treated with the same cleaning solution, should the cleaning solution you are looking for when used on other metals such as for example iron, zinc and in particular aluminum and Aluminum alloys have no disadvantages compared to cleaning solutions have prior art.
- the cleaning solution additionally d) 2 to 20 g / l, preferably 5 to 15 g / l organic amino or hydroxycarboxylic acids and / or di- or Oligocarboxylic acids with 2 to 8 carbon atoms each in part or in full contains neutralized form.
- the cleaning solution preferably contains 6 to 15 g / l of component a), 5 to 15 g / l of component b) and 0.5 to 5 g / l of component c).
- the individual components are as components of cleaning solutions known. However, fluoride salts are used in cleaning solutions rather unusual. To the applicant's knowledge, however, they are not aqueous Known cleaning solutions that contain the 3 essential components mentioned contains the specified amounts.
- the aqueous cleaning solution has preferably a pH in the alkaline range, ie in the range between about 7 and about 12. Here, the range is from 8 to 11, and particularly from 8.5 to 10 particularly preferred. At these pH values, it goes without saying that components c) and optionally d) in partially or completely neutralized Shape, d. H. partially or completely in the form of their anions.
- the ready-to-use cleaning solution should be a clear solution
- all ionic components are preferably used in the form of water-soluble Salt.
- water-soluble it is understood that the salts in specified concentration range soluble in water at normal pressure are.
- Ammonium and / or alkali metal salts are preferably used For reasons of cost, preferably sodium salts.
- the salts and / or hydroxides mentioned are intended in addition to their builder properties cause the cleaning solution to have the preferred alkaline pH having. Therefore, salts are used which become alkaline when dissolved in water pH values may lead to the addition of alkali metal and / or Ammonium hydroxides can be dispensed with.
- the desired alkaline pH can also be achieved, for example, by using the phosphates as uses tertiary phosphates. Also when using carbonates and / or silicates alkaline pH values are usually obtained.
- the chelating phosphonic acids and / or phosphonocarboxylic acids Group c) is preferably selected from geminal alkyldiphosphonic acids 2 to 8 carbon atoms, amino (alkylene) phosphonic acids and phosphonocarboxylic acids, the at least one phosphonic acid group and at least two Have carboxyl groups.
- R is an alkyl radical having 1 to 5 carbon atoms and Z is hydrogen, a hydroxyl or an amino group, and / or one or more aminomethylenephosphonic acids of the general formula (II) where X and Y independently of one another are hydrogen or an alkyl group having 1 to 4 carbon atoms, R 1 and R 2 -PO 3 H 2 or a group of the formula and R 3 is -PO 3 H 2 , and / or one or more phosphonocarboxylic acids of the general formula (III) where R 'is hydrogen, an alkyl radical having 1 to 4 carbon atoms or a group -CH 2 CH 2 -COOH, or their water-soluble salts.
- Hydroxyarboxylic acids of group d) come in particular Hydroxylacetic acid, lactic acid, gluconic acid, tartronic acid, malic acid, Tartaric acid and citric acid into consideration. Furthermore, are according to the invention Aminocarboxylic acids of group d) are suitable.
- the naturally occurring alpha amino acids or amino acid derivatives are usually related to the Amino group carrying carbon atom chiral and are in the L-form. Although the chiral L-amino acids for the technical purpose according to the invention offer no particular advantage, they are considered natural or nature-identical active ingredients are preferred.
- amino acids can accordingly in the form of their racemates or in optically active form, for example Find use: glycine, alanine, valine, leucine, isoleucine, beta-alanine, gamma-aminobutyric acid, epsilon aminocaproic acid, glutamine, glutamic acid, Aspartic acid, aminomalonic acid, aminoadipic acid and 2-amino-2-methylpentanedioic acid.
- the amino acids can also carry hydroxyl groups. Examples include serine and threonine.
- the invention relates to the use of one described above aqueous cleaning solution for cleaning metal surfaces from magnesium, Aluminum and / or alloys made up of at least 50% by weight Magnesium or aluminum exist.
- the metal surfaces can Immerse in the cleaning solution or by spraying with the Cleaning solution.
- the temperature is the Cleaning solution preferably in the range between 30 and 90 ° C, preferably between 40 and 80 ° C and in particular between 50 and 70 ° C.
- the Cleaning solution is preferably left on the metal surfaces for one Duration in the range between 1 and 15 minutes, in particular between 2 and Leave on for 10 minutes. This is preferably followed by rinsing Water.
- This cleaning process is preferably used in the course of a Sequence of procedures in which the cleaned metal surfaces after cleaning be coated with a corrosion-protective layer.
- This Corrosion protection layer can be produced by the Metal surfaces are first subjected to conversion treatment and they then painted.
- conversion treatment is on the relevant technical field and means that the Metal surfaces in contact with a reagent solution that is caused by chemical Reaction with the metal surface a corrosion protective layer on the Deposits metal surface.
- the conversion treatment in chromate.
- you set the invention Cleaning process in the course of a sequence of processes in which the Conversion treatment after cleaning with a Chromium-free conversion solution. With this chrome-free Conversion treatment can be, for example, phosphating act.
- the conversion treatment is preferably followed by painting, for example a powder coating or in particular one Electrodeposition coating.
- This can be anionic or cationic Electrocoating can be carried out.
- the ready-to-use cleaning solution could, in principle, be found at the location of the Prepare application by dissolving the individual components in water.
- a premix in the form of a powder or of moldings which, when dissolved in water, form a 1 to 10% by weight Solution give a cleaning solution described above.
- Both Shaped bodies can be balls with a diameter of, for example 1 mm or larger or tablet-shaped or block-shaped bodies.
- Such moldings can be obtained by compressing the powdery Components or by solidifying a melt in appropriate forms getting produced.
- a concentrate for the cleaning solution according to the invention can also be used as flowable or pumpable slurry ("slurry") are placed on the market, the one when mixed with water in a weight ratio of 2: 98 to 20: 80 aqueous cleaning solution described above results.
- Another The embodiment consists of an aqueous concentrate in the form of a solution and / or dispersion which, when mixed with water in a weight ratio of 2:98 to 30: 70 gives the ready-to-use aqueous cleaning solution.
- Such flowable or pumpable slurries or aqueous concentrates have the disadvantage over powders or moldings that they are in addition to the cleaning-active components a liquid carrier such as Contain water that transports in addition to the actual active ingredients must become. Nevertheless, the user often pulls such concentrates Powder products because they are easier to dose and when producing the Cleaning solution or when introduced into a used cleaning solution the addition of which does not form undesirable alkaline dusts.
- the preparation ratio of the concentrates in water usually depends on whether the ready-to-use cleaning solution for immersion or spray processes wants to use. Due to the mechanical energy involved in spraying on the Acts on the metal surface, it is sufficient for spraying if the Cleaning solution has about half as high concentrations of the active ingredients as a cleaning solution used in the immersion process. For the The concentrates can therefore be used about twice as much in the spraying process be greatly diluted as in the manufacture of cleaning solutions for Dipping.
- Table 1 contains examples of cleaning solutions according to the invention, which can be obtained, for example, by dissolving appropriately composed powdery premixes in water.
- an appropriately composed powder can be dissolved into a 3% by weight solution in water.
- the coated test specimens were paint adhesion and corrosion tests exposed, as is usual in the state of the art: with the cooking test The test specimen is cross-cut in boiling demineralized water for 2 hours dipped and then cut the lacquer into a grid. The extent of Paint flaking is rated with quality indicators GT 0 to GT 5, with GT 0 no paint flaking and GT 5 means complete paint detachment. For details, emerges from the standard DIN EN ISO 2409. Furthermore became a neutral one Salt spray test (NSS test) carried out according to standard DIN 50021. In doing so both painted test pieces and unpainted test pieces (only cleaned and conversion treated) checked. In the case of coated test specimens, the paint was applied by Cut the substrate and the test specimen for 1000 hours Subjected to salt spray test.
- NSS test neutral one Salt spray test
- test results look after cleaning Cross-cut after cooking test NSS test 1000 h (cut) NSS test bare metal (corr. After 2h) Comp. 1A gray, spotty GT 0 - GT 3 0.4 - 1.8 12 Comp. 1B gray, spotty GT 0 - GT 5 2.1 - 3.8 8th Ex. 4A bright, bright GT 0 0.4-0.6 7 Ex. 4B bright, bright GT 0 1.4 - 1.8 4
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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
Description
und/oder eine oder mehrere Aminomethylenphosphonsäuren der allgemeinen Formel (II) wobei X und Y unabhängig voneinander Wasserstoff oder eine Alkylgruppe mit 1 bis 4 C-Atomen,
R1 und R2 -PO3H2 oder eine Gruppe der Formel und R3 -PO3H2 bedeuten,
und/oder eine oder mehrere Phosphonocarbonsäuren der allgemeinen Formel (III) wobei R' Wasserstoff, einen Alkylrest mit 1 bis 4 C-Atomen oder eine Gruppe -CH2CH2-COOH bedeutet,
oder jeweils deren wasserlösliche Salze.
| Verfahrensablauf |
| Behandlung von Magnesium/Magnesiumlegierungen - Substrat: Magnesium-Druckguss AZ 91 |
| Anlage: Tauchanlage |
- Version A:
- AlotronR 5, 10 %, 20 °C, 1 Minute, pH 1,7 (Gelbchromatierung: Chromsäure, Dichromat, Salpetersäure)
- Version B:
- NovacoatR 400 A - 1 %, NovacoatR 400 B - 0,5 %, 25 °C, 1 Minute, pH 3,5 (Cr-freie Konversion: Titanfluorid, Tannin)
- Version A:
- AlotronR 5, 10 %, 20 °C, 1 Minute, pH 1,7 (Gelbchroma-tierung, Dichromat, Salpetersäure)
- Version B:
- NovocoatR 400 B - 0,5 %, 25 °C, 1 Minute, pH 3,5 (Cr-freie Konversion: Titanfluorid, Tannin)
| Testergebnisse | ||||
| Beispiel | Optik nach Reinigung | Gitterschnitt nach Kochtest | NSS-Test 1000 h (Schnitt) | NSS-Test bare metal (Korr. nach 2h) |
| Vergl. 1A | grau, fleckig | GT 0 - GT 3 | 0,4 - 1,8 | 12 |
| Vergl. 1B | grau, fleckig | GT 0 - GT 5 | 2,1 - 3,8 | 8 |
| Beisp. 4A | hell, blank | GT 0 | 0,4 - 0,6 | 7 |
| Beisp. 4B | hell, blank | GT 0 | 1,4 - 1,8 | 4 |
Claims (11)
- Wässrige Reinigungslösung, diea) 3 bis 60 g/l Mono-, Di- und/oder Triphosphat-Salzeb) 1 bis 30 g/l Fluoridsalze,c) 0,1 bis 10 g/l chelatisierende Phosphonsäuren und/oder Phosphonocarbonsäuren in teilweise oder vollständig neutraliserter Form enthält.
- Wässrige Reinigungslösung nach Anspruch 1, dadurch gekennzeichnet, daß sie zusätzlichd) 2 bis 20 g/l organische Amino- oder Hydroxycarbonsäuren und/oder Di- oder Oligocabonsäuren mit jeweils 2 bis 8 C-Atomen in teilweise oder vollständig neutralisierter Form enthält.
- Wässrige Reinigungslösung nach einem oder beiden der Ansprüche 1 und 2, dadurch gekennzeichnet, daß sie einen pH-Wert im Bereich von 7 bis 12 aufweist.
- Wässrige Reinigungslösung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie zusätzlich eine oder mehrere der folgenden Komponenten enthält:e) 5 bis 50 g/l Salze mit Mono- oder Oligoborationen,f) 1 bis 10 g/l Carbonatsalze,g) 1 bis 10 g/l Alkalimetall- und/oder Ammoniumhydroxide,h) 1 bis 10 g/l Alkalimetallsilicate,i) 0,4 bis 4 g/l Tenside.
- Wässrige Reinigungslösung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die chelatisierenden Phosphonsäuren und/oder Phosphonocarbonsäuren c) ausgewählt sind aus geminalen Alkyldiphosphonsäuren mit 2 bis 8 C-Atomen, Amino(alkylen)phosphonsäuren und Phosphonocarbonsäuren mit mindestens einer Phosphonsäuregruppe und mindestens zwei Carboxylgruppen.
- Wässrige Reinigungslösung nach einem oder mehreren der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die organischen Amino- oder Hydroxycarbonsäuren und/oder Di- oder Oligocabonsäuren mit 2 bis 8 C-Atomen d) ausgewählt sind aus aliphatischen Hydroxymono-, Hydroxydi- oder Hydroxytricarbonsäuren mit 2 bis 6 C-Atomen und 1 bis 5 Hydroxygruppen und/oder aus aliphatischen Monoamino- oder Diamino-mono- oder - dicarbonsäuren mit 2 bis 6 C-Atomen.
- Verwendung einer wässrigen Reinigungslösung nach einem oder mehreren der Ansprüche 1 bis 6 zur Reinigung von Metalloberflächen von Magnesium, Aluminium und/oder von Legierungen, die zu mindestens 50 Gew.-% aus Magnesium oder Aluminium bestehen.
- Verwendung nach Anspruch 7 zur Reinigung vor einer nachfolgenden Konversionsbehandlung mit einer chromfreien Konversionslösung.
- Vorgemisch in Form eines Pulvers oder von Formkörpern, die beim Auflösen in Wasser zu einer 1 bis 10 gewichtsprozentigen Lösung eine wässrige Reinigungslösung nach einem oder mehreren der Ansprüche 1 bis 6 ergeben.
- Fließfähige oder pumpbare Aufschlämmung, die beim Versetzung mit Wasser im Gewichtsverhältnis 2 : 98 bis 20 : 80 eine wässrige Reinigungslösung nach einem oder mehreren der Ansprüche 1 bis 6 ergibt.
- Wäßriges Konzentrat in Form einer Lösung und/oder Dispersion, das beim Versetzung mit Wasser im Gewichtsverhältnis 2 : 98 bis 30 : 70 eine wässrige Reinigungslösung nach einem oder mehreren der Ansprüche 1 bis 6 ergibt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10115161A DE10115161A1 (de) | 2001-03-27 | 2001-03-27 | Reiniger für Magnesium, Aluminium und deren Legierungen |
| DE10115161 | 2001-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1245665A1 true EP1245665A1 (de) | 2002-10-02 |
Family
ID=7679299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02006059A Withdrawn EP1245665A1 (de) | 2001-03-27 | 2002-03-16 | Reiniger für Magnesium, Aluminium und deren Legierungen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1245665A1 (de) |
| DE (1) | DE10115161A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004087338A3 (de) * | 2003-03-31 | 2005-06-09 | Behr Gmbh & Co Kg | Wärmetauscher und verfahren zur oberflächenbehandlung eines solchen |
| CN104018154A (zh) * | 2014-06-20 | 2014-09-03 | 合肥长城制冷科技有限公司 | 一种铝管氧化处理防腐液 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007037903A1 (de) * | 2007-08-10 | 2009-02-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Reinigung von Oberflächen sowie Verwendung des Verfahrens |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3459600A (en) * | 1966-11-07 | 1969-08-05 | Todco Chem Co Inc | Novel zinc coating composition and method |
| WO1996030488A1 (en) * | 1995-03-24 | 1996-10-03 | Atotech Usa Inc. | Aluminum desmut composition and process |
| JPH11340182A (ja) * | 1998-05-25 | 1999-12-10 | Wako Pure Chem Ind Ltd | 半導体表面洗浄剤及び洗浄方法 |
| US6191086B1 (en) * | 1996-09-06 | 2001-02-20 | Arch Specialty Chemicals, Inc. | Cleaning composition and method for removing residues |
-
2001
- 2001-03-27 DE DE10115161A patent/DE10115161A1/de not_active Withdrawn
-
2002
- 2002-03-16 EP EP02006059A patent/EP1245665A1/de not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3459600A (en) * | 1966-11-07 | 1969-08-05 | Todco Chem Co Inc | Novel zinc coating composition and method |
| WO1996030488A1 (en) * | 1995-03-24 | 1996-10-03 | Atotech Usa Inc. | Aluminum desmut composition and process |
| US6191086B1 (en) * | 1996-09-06 | 2001-02-20 | Arch Specialty Chemicals, Inc. | Cleaning composition and method for removing residues |
| JPH11340182A (ja) * | 1998-05-25 | 1999-12-10 | Wako Pure Chem Ind Ltd | 半導体表面洗浄剤及び洗浄方法 |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004087338A3 (de) * | 2003-03-31 | 2005-06-09 | Behr Gmbh & Co Kg | Wärmetauscher und verfahren zur oberflächenbehandlung eines solchen |
| CN104018154A (zh) * | 2014-06-20 | 2014-09-03 | 合肥长城制冷科技有限公司 | 一种铝管氧化处理防腐液 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10115161A1 (de) | 2002-10-10 |
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