EP0376367A1 - Agent aqueux pour nettoyer des surfaces métalliques - Google Patents

Agent aqueux pour nettoyer des surfaces métalliques Download PDF

Info

Publication number: EP0376367A1
Authority: EP; European Patent Office
Prior art keywords: cleaner; metal surfaces; cleaner according; corrosion; spraying
Prior art date: 1988-12-29
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP89203120A

Other languages

German (de)

English (en)

Inventor

Klaus Dr. Wittel

Siegfried Möller

Helmut Hoch

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

GEA Group AG

Continentale Parker Ste

Continentale Parker SA

Original Assignee

Metallgesellschaft AG

Continentale Parker Ste

Continentale Parker SA

Priority date (The priority date 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 date listed.)

1988-12-29

Filing date

1989-12-08

Publication date

1990-07-04

1989-12-08 Application filed by Metallgesellschaft AG, Continentale Parker Ste, Continentale Parker SA filed Critical Metallgesellschaft AG

1990-07-04 Publication of EP0376367A1 publication Critical patent/EP0376367A1/fr

Status Withdrawn legal-status Critical Current

Links

229910052751 metal Inorganic materials 0.000 title claims abstract description 6
239000002184 metal Substances 0.000 title claims abstract description 6
239000012459 cleaning agent Substances 0.000 title description 2
238000005260 corrosion Methods 0.000 claims abstract description 22
230000007797 corrosion Effects 0.000 claims abstract description 11
239000003112 inhibitor Substances 0.000 claims abstract description 9
238000005507 spraying Methods 0.000 claims abstract description 9
MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 8
239000004094 surface-active agent Substances 0.000 claims abstract description 8
229920000151 polyglycol Polymers 0.000 claims abstract description 7
239000010695 polyglycol Substances 0.000 claims abstract description 7
125000004432 carbon atom Chemical group C* 0.000 claims abstract description 4
150000003839 salts Chemical class 0.000 claims abstract description 4
150000007933 aliphatic carboxylic acids Chemical class 0.000 claims abstract description 3
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 13
239000002202 Polyethylene glycol Substances 0.000 claims description 7
229920001223 polyethylene glycol Polymers 0.000 claims description 7
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
239000000126 substance Substances 0.000 abstract description 5
150000002170 ethers Chemical class 0.000 abstract 1
-1 methyl- Chemical group 0.000 abstract 1
238000004140 cleaning Methods 0.000 description 19
239000003921 oil Substances 0.000 description 14
HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
230000007935 neutral effect Effects 0.000 description 4
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 3
229910000397 disodium phosphate Inorganic materials 0.000 description 3
235000019800 disodium phosphate Nutrition 0.000 description 3
230000009189 diving Effects 0.000 description 3
239000007921 spray Substances 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
125000000217 alkyl group Chemical group 0.000 description 2
238000005238 degreasing Methods 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229920001451 polypropylene glycol Polymers 0.000 description 2
OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
VFRLWIOKCWDGFM-UHFFFAOYSA-N 1-[2-(2-hydroxyethoxy)ethoxy]-3-methylbutan-2-ol Chemical compound CC(C)C(O)COCCOCCO VFRLWIOKCWDGFM-UHFFFAOYSA-N 0.000 description 1
HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 1
OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 description 1
229920000742 Cotton Polymers 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
229910019142 PO4 Inorganic materials 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
239000003513 alkali Substances 0.000 description 1
OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
125000000129 anionic group Chemical group 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
230000008033 biological extinction Effects 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000000861 blow drying Methods 0.000 description 1
150000001642 boronic acid derivatives Chemical class 0.000 description 1
150000004649 carbonic acid derivatives Chemical class 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
239000000356 contaminant Substances 0.000 description 1
238000011109 contamination Methods 0.000 description 1
ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
238000001035 drying Methods 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
239000006260 foam Substances 0.000 description 1
238000005187 foaming Methods 0.000 description 1
239000003673 groundwater Substances 0.000 description 1
238000007654 immersion Methods 0.000 description 1
238000012432 intermediate storage Methods 0.000 description 1
239000000314 lubricant Substances 0.000 description 1
238000003754 machining Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000005259 measurement Methods 0.000 description 1
238000005555 metalworking Methods 0.000 description 1
238000000034 method Methods 0.000 description 1
239000002736 nonionic surfactant Substances 0.000 description 1
229920000847 nonoxynol Polymers 0.000 description 1
SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
235000021317 phosphate Nutrition 0.000 description 1
150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
238000005554 pickling Methods 0.000 description 1
239000010865 sewage Substances 0.000 description 1
235000021391 short chain fatty acids Nutrition 0.000 description 1
150000004666 short chain fatty acids Chemical class 0.000 description 1
150000004760 silicates Chemical class 0.000 description 1
229910000029 sodium carbonate Inorganic materials 0.000 description 1
235000017550 sodium carbonate Nutrition 0.000 description 1
235000019795 sodium metasilicate Nutrition 0.000 description 1
229910052911 sodium silicate Inorganic materials 0.000 description 1
235000019832 sodium triphosphate Nutrition 0.000 description 1
239000010959 steel Substances 0.000 description 1
238000003860 storage Methods 0.000 description 1

Classifications

- 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
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
- 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

Definitions

the invention relates to an aqueous cleaner for metal surfaces with a pH between 7 and 12.5 and a content of surfactant, as well as conventional framework substances and / or corrosion inhibitors, and its use in the spraying process.
metal surfaces have to be degreased and cleaned at many points in the production process, e.g. after machining before fine measurement or intermediate storage or before phosphating to remove anti-corrosion oils or lubricants.
aqueous solutions since the widespread cleaning with organic solvents, e.g. Chlorinated hydrocarbons, because of the associated health and groundwater hazards is problematic.
organic solvents e.g. Chlorinated hydrocarbons
Such aqueous systems are e.g. the so-called neutral cleaners or alkaline cleaners.
the former are preferably used in spraying, the latter both in spraying and in diving.
Neutral cleaning agents have a pH value between about 8 and 9.5 at the usual application concentration. They contain surfactants, mostly non-ionic, and corrosion inhibitors, such as alkanolamine salts of short-chain fatty acids with less than 10 carbon atoms. The corrosion inhibitors serve to protect the treated parts against corrosion during the cleaning treatment, during drying and during subsequent storage (DE-C-26 14 234, EP-A-99 598).
Alkaline cleaners with a pH value usually greater than 7 contain surfactants, in particular anion-active and / or non-ionic types, and so-called builders, such as alkali carbonates, silicates, phosphates, borates, gluconates or sodium or potassium hydroxide.
the object of the invention is to provide an aqueous cleaner for metal surfaces which does not have the disadvantages of the known cleaners, in particular has a significantly increased tolerance to oily contaminants, and can therefore be used for a significantly longer time.
cleaners containing methyl, ethyl and / or isopropyl polyethylene glycol ether are used.
the content of polyglycol ether in the cleaner is 0.05 to 10 g / l.
a concentration in the lower range is particularly advantageous in the case of spray application, that in the higher range in the case of immersion application.
the ones according to the invention expediently contain the customary framework substances.
Preferred surfactants are those of an anionic or nonionic type. Salts of one or more aliphatic carboxylic acids having 6 to 12 carbon atoms with alkanolamine are particularly suitable as corrosion inhibitors. However, other corrosion inhibitors can also be used.
the minimum cleaning time is the shortest cleaning time that is required to obtain fully wetted sheets (greater than 95% of the surface) during subsequent water rinsing.
a cleaner the - 3.6 g / l Na2HPO4 and 0.4 g / l non-ionic surfactant (Antarox (R) BL 330 from GAF) contained and was used in spraying at 55 ° C.
Corrosion protection oil was emulsified in different amounts into the cleaner to simulate the pollution that usually increases in practice. The determined minimum cleaning times were at 0 1 2nd 3rd g / l anti-corrosion oil 30 s 50 s 90 s 120 s
the minimum cleaning time for spray application and at 60 ° C was at 0 1 2nd 3rd g / l anti-corrosion oil 30 s 30 s 50 s greater than 120 s
a so-called neutral cleaner of the composition is used - 5 g / l diethanolamine - 0.8 g / l 2-ethylhexanoic acid - 0.8 g / l alkyl polyethylene glycol polypropylene glycol ether (Propetal (R) 99 from Zschimmer & Schwarz).
the minimum cleaning time which was determined by spraying at 45 ° C, was at 0 1 2nd 3rd g / l anti-corrosion oil 65 s 90 s greater than 240 s greater than 240 s
a cleaner of the composition was used - 20 g / l Na2SiO3 - 18 g / l Na2CO3 - 10 g / l NaOH 1.5 g / l of dodecylbenzenesulfonate (lutensite (R) ALBN from BASF).

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Detergent Compositions (AREA)
Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

EP89203120A 1988-12-29 1989-12-08 Agent aqueux pour nettoyer des surfaces métalliques Withdrawn EP0376367A1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3844183		1988-12-29
DE19883844183 DE3844183A1 (de)	1988-12-29	1988-12-29	Waessriger reiniger fuer metalloberflaechen

Publications (1)

Publication Number	Publication Date
EP0376367A1 true EP0376367A1 (fr)	1990-07-04

Family

ID=6370439

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89203120A Withdrawn EP0376367A1 (fr)	1988-12-29	1989-12-08	Agent aqueux pour nettoyer des surfaces métalliques

Country Status (4)

Country	Link
EP (1)	EP0376367A1 (fr)
JP (1)	JPH02225685A (fr)
BR (1)	BR8906834A (fr)
DE (1)	DE3844183A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0636710A1 (fr) *	1993-07-27	1995-02-01	Dr. O.K. WACK CHEMIE GmbH	Procédé pour le nettoyage d'objects
US5486314A (en) *	1992-08-07	1996-01-23	O. K. Wack Chemie Gmbh	Cleaning agent containing glycol ethers
US5501816A (en) *	1994-07-12	1996-03-26	Basf Corporation	Aqueous based solvent free degreaser composition
WO2000008236A1 (fr) *	1998-08-05	2000-02-17	Henkel Kommanditgesellschaft Auf Aktien	Agents et procedes pour l'usinage et le nettoyage des metaux ou leur traitement anticorrosion
CN106367765A (zh) *	2016-09-30	2017-02-01	芜湖豫新世通汽车空调有限公司	金属清洗材料组合物及其制备方法
CN106283094B (zh) *	2016-09-30	2019-03-26	芜湖豫新世通汽车空调有限公司	金属清洗材料组合物及其制备方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19948413A1 (de) *	1999-10-07	2001-04-12	Unruh Stephan	Reinigungslösung und Verfahren zur Reinigung von Werkstücken
DE102006018216B4 (de) *	2006-04-18	2008-09-25	Chemetall Gmbh	Verfahren zum demulgierenden Reinigen von metallischen Oberflächen
WO2013130805A1 (fr)	2012-02-29	2013-09-06	Sabic Innovative Plastics Ip B.V.	Compositions de copolymère de polycarbonate thermoplastique, procédés pour les fabriquer et articles associés
WO2013130809A1 (fr)	2012-02-29	2013-09-06	Sabic Innovative Plastics Ip B.V.	Compositions thermoplastiques à faible densité de fumée, procédés pour les fabriquer et leurs utilisations
US9328240B2 (en)	2012-12-21	2016-05-03	Sabic Global Technologies B.V.	Polycarbonate compositions, articles formed therefrom, and methods of manufacture thereof
US9266541B2 (en)	2013-05-01	2016-02-23	Sabic Global Technologies B.V.	Interior train components having low smoke and low heat release, and methods of their manufacture
US10196517B2 (en)	2013-05-01	2019-02-05	Sabic Global Technologies B.V.	Interior train components having low smoke and low heat release, and methods of their manufacture
US9352755B2 (en)	2013-05-01	2016-05-31	Sabic Global Technologies B.V.	Interior train components having low smoke and low heat release, and methods of their manufacture
US9650496B2 (en)	2013-06-12	2017-05-16	Sabic Global Technologies B.V.	Interior aircraft components and methods of manufacture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1253552B (de) *	1963-07-24	1967-11-02	Cowles Chem Co	Reinigungsmittel fuer Metalloberflaechen
US3481877A (en) *	1967-02-27	1969-12-02	Amchem Prod	Cleaning solution concentrate and method of preparing same
DE2614234C2 (de) *	1976-04-02	1982-05-27	Metallgesellschaft Ag, 6000 Frankfurt	Behandlungsflüssigkeit zum Korrosionsschutz von Metalloberflächen und Konzentrat zu deren Herstellung

1988
- 1988-12-29 DE DE19883844183 patent/DE3844183A1/de not_active Withdrawn
1989
- 1989-12-08 EP EP89203120A patent/EP0376367A1/fr not_active Withdrawn
- 1989-12-28 BR BR8906834A patent/BR8906834A/pt unknown
- 1989-12-28 JP JP33886689A patent/JPH02225685A/ja active Pending

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1253552B (de) *	1963-07-24	1967-11-02	Cowles Chem Co	Reinigungsmittel fuer Metalloberflaechen
US3481877A (en) *	1967-02-27	1969-12-02	Amchem Prod	Cleaning solution concentrate and method of preparing same
DE2614234C2 (de) *	1976-04-02	1982-05-27	Metallgesellschaft Ag, 6000 Frankfurt	Behandlungsflüssigkeit zum Korrosionsschutz von Metalloberflächen und Konzentrat zu deren Herstellung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5486314A (en) *	1992-08-07	1996-01-23	O. K. Wack Chemie Gmbh	Cleaning agent containing glycol ethers
EP0636710A1 (fr) *	1993-07-27	1995-02-01	Dr. O.K. WACK CHEMIE GmbH	Procédé pour le nettoyage d'objects
US5501816A (en) *	1994-07-12	1996-03-26	Basf Corporation	Aqueous based solvent free degreaser composition
WO2000008236A1 (fr) *	1998-08-05	2000-02-17	Henkel Kommanditgesellschaft Auf Aktien	Agents et procedes pour l'usinage et le nettoyage des metaux ou leur traitement anticorrosion
US6524396B1 (en)	1998-08-05	2003-02-25	Henkel Kommanditgesellschaft Aut Aktien	Agent and method for machining metal and for cleaning metal or anticorrosion treatment
CN106367765A (zh) *	2016-09-30	2017-02-01	芜湖豫新世通汽车空调有限公司	金属清洗材料组合物及其制备方法
CN106367765B (zh) *	2016-09-30	2018-11-30	芜湖豫新世通汽车空调有限公司	金属清洗材料组合物及其制备方法
CN106283094B (zh) *	2016-09-30	2019-03-26	芜湖豫新世通汽车空调有限公司	金属清洗材料组合物及其制备方法

Also Published As

Publication number	Publication date
JPH02225685A (ja)	1990-09-07
BR8906834A (pt)	1990-09-18
DE3844183A1 (de)	1990-07-19

Legal Events

Date	Code	Title	Description
1990-05-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1990-07-04	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE ES FR GB IT SE
1990-12-14	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
1991-01-30	18W	Application withdrawn	Withdrawal date: 19901205

Publication	Publication Date	Title
DE3886345T2 (de)	1994-03-31	Entfernung von Rost und Mittel hierfür.
EP0527824B1 (fr)	1995-01-04	Utilisation d'une combinaison de tensio-actifs ioniques et non ioniques
EP0376367A1 (fr)	1990-07-04	Agent aqueux pour nettoyer des surfaces métalliques
DE2712900C2 (de)	1986-04-10	Verfahren zur Reinigung von Metallen im Spritzverfahren
EP0361102A1 (fr)	1990-04-04	Composition de nettoyage pour aluminium
DE2614234A1 (de)	1977-10-20	Korrosionsschutzmittel fuer metalloberflaechen
DE3316724A1 (de)	1984-11-08	Mittel und verfahren zur reinigung und passivierung von metallen im spritzverfahren
EP0275043A1 (fr)	1988-07-20	Nettoyeur acide pour aluminium
CH507774A (de)	1971-05-31	Lötflussmittel
DE3521952A1 (de)	1987-01-02	Waessrige zusammensetzungen fuer den hilite- und flux-prozess und ihre verwendung
DE3620314A1 (de)	1987-01-02	Alkalischer reiniger
DE19963124A1 (de)	2001-07-12	Reinigungsmedium und dessen Verwendung
EP0031103B1 (fr)	1983-09-28	Procédé pour le traitement préliminaire de surfaces métalliques avant la phosphatation
EP1137748A1 (fr)	2001-10-04	Procede d'usinage et de nettoyage de metal
DE2328763C2 (de)	1987-02-12	Wässriges alkalisches borathaltiges Reinigungsmittel und Verfahren zu seiner Herstellung
DE1151708B (de)	1963-07-18	Verfahren zur Spritzkaltreinigung von Metallen von der Phosphatierung
EP0372610A1 (fr)	1990-06-13	Agent de nettoyage aqueux pour des surfaces métalliques
DE102014212654B4 (de)	2019-12-12	Reinigungs- und Passivierungslösung für Seltenerddauermagnete, Verfahren und Verwendung
EP1108073B1 (fr)	2003-01-22	Agents et procedes pour l'usinage et le nettoyage des metaux ou leur traitement anticorrosion
DE3541997A1 (de)	1987-06-04	Verbessertes verfahren zur aktivierung von metalloberflaechen vor einer zinkphosphatierung
EP0531360B1 (fr)	1995-04-26	Nettoyage de surfaces en aluminium
DE3217145A1 (de)	1983-11-10	Verfahren zum reinigen, entfetten sowie aktivieren von metalloberflaechen
DE1145892B (de)	1963-03-21	Verfahren zum Reinigen von Metalloberflaechen und Emulsionsreiniger zu dessen Durchfuehrung
EP0605495B1 (fr)	1995-12-20	Polyalkyleneglycols d'alcools gras avec distribution restreinte des homologues dans des nettoyeurs par immersion faiblement moussants
DE69518036T2 (de)	2001-03-22	Reinigungs- und Passivierungsbehandlung von Metallen