EP0636710A1 - Procédé pour le nettoyage d'objects - Google Patents

Procédé pour le nettoyage d'objects Download PDF

Info

Publication number
EP0636710A1
EP0636710A1 EP94109602A EP94109602A EP0636710A1 EP 0636710 A1 EP0636710 A1 EP 0636710A1 EP 94109602 A EP94109602 A EP 94109602A EP 94109602 A EP94109602 A EP 94109602A EP 0636710 A1 EP0636710 A1 EP 0636710A1
Authority
EP
European Patent Office
Prior art keywords
propylene glycol
formula
ether
iso
weight
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.)
Granted
Application number
EP94109602A
Other languages
German (de)
English (en)
Other versions
EP0636710B1 (fr
Inventor
Oskar Dr. Wack
Martin Dr. C/O Wack Chemie Hanek
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.)
Wack Dr O K Chemie GmbH
Original Assignee
Wack Dr O K Chemie GmbH
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.)
Filing date
Publication date
Application filed by Wack Dr O K Chemie GmbH filed Critical Wack Dr O K Chemie GmbH
Publication of EP0636710A1 publication Critical patent/EP0636710A1/fr
Application granted granted Critical
Publication of EP0636710B1 publication Critical patent/EP0636710B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/173—Macromolecular compounds
    • 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

Definitions

  • the present invention relates to a method for cleaning objects according to the preamble of claim 1.
  • Objects to be cleaned are subjected to a cleaning process in a cleaning bath by immersion, optionally with ultrasound assistance, and are then freed from the cleaning bath in a first aqueous rinsing bath. Because of the impurities introduced into the first rinsing bath, a second rinsing bath is recommended for perfect rinsing, which is followed by a drying process.
  • This corrosion proves to be particularly problematic when the dried objects are to be processed further, for example by providing a coating.
  • the problem underlying the present invention is to reduce the risk of corrosion.
  • the object is achieved by a method according to claim 1.
  • an addition of a mixture of propylene glycol methyl ether and propylene glycol ether is added to the last rinsing bath.
  • a glycol ether mixture improves the outflow behavior of the water from the objects removed from the water, and the water flows out like a curtain.
  • a film-like coating is evidently formed, which offers effective protection against oxidation and corresponding corrosion for a limited period of about 24 hours.
  • the last rinsing bath consists of deionized water (deionized water) to prevent staining.
  • deionized water deionized water
  • glycol ether mixture mentioned is added to the deionized water in a concentration of about 10 percent by weight to 50 percent by weight.
  • a propylene glycol monoethyl ether of the formula has proven to be particularly suitable as propylene glycol methyl ether and as propylene glycol ether a propylene glycol n-butyl ether of the formula proven.
  • Metal parts to be cleaned made of steel are treated in a glycol ether cleaning bath and then cleaned of the residues of the cleaning bath in a first aqueous bath.
  • the parts are rinsed in a second bath from demineralized water and then dried in a hot air stream.
  • the drying time is about three minutes, it is strongly dependent on the temperature of the warm air flow and the air speed.
  • the same metal parts as in Example 1 are treated in the same cleaning bath and the residues are also cleaned in the first rinsing bath.
  • the second rinsing bath is a mixture of propylene glycol monoethyl ether of the formula and propylene glycol n-butyl ether of the formula in proportions of 80% by weight of propylene glycol monoethyl ether and 20% by weight of propylene glycol n-butyl ether.
  • the drying time could be reduced by 50% by draining the rinsing bath from the items removed after rinsing. Even after 24 hours, even with careful inspection, there was still no corrosion, within this time the dried parts could be processed without further protective measures, e.g. be coated.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP94109602A 1993-07-27 1994-06-22 Procédé pour le nettoyage d'objects Expired - Lifetime EP0636710B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4325133 1993-07-27
DE4325133A DE4325133A1 (de) 1993-07-27 1993-07-27 Verfahren zum Reinigen von Gegenständen

Publications (2)

Publication Number Publication Date
EP0636710A1 true EP0636710A1 (fr) 1995-02-01
EP0636710B1 EP0636710B1 (fr) 1996-11-13

Family

ID=6493798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94109602A Expired - Lifetime EP0636710B1 (fr) 1993-07-27 1994-06-22 Procédé pour le nettoyage d'objects

Country Status (6)

Country Link
US (1) US5626818A (fr)
EP (1) EP0636710B1 (fr)
JP (1) JPH07171521A (fr)
AT (1) ATE145254T1 (fr)
CA (1) CA2128846A1 (fr)
DE (2) DE4325133A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5610132A (en) * 1994-06-24 1997-03-11 Tokuyama Corporation Cleaning agent for removing fats and oils from metal surfaces

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6125395A (en) * 1999-10-04 2000-09-26 Piiq.Com, Inc. Method for identifying collections of internet web sites with domain names
CN100419124C (zh) * 2005-02-07 2008-09-17 长江大学 一种控制电偶腐蚀的缓蚀剂

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01149981A (ja) * 1987-12-07 1989-06-13 Showa Shell Sekiyu Kk 水溶性脱脂組成物
EP0376367A1 (fr) * 1988-12-29 1990-07-04 METALLGESELLSCHAFT Aktiengesellschaft Agent aqueux pour nettoyer des surfaces métalliques
EP0426943A2 (fr) * 1989-11-08 1991-05-15 Arakawa Chemical Industries, Ltd. Composition et méthode pour enlever un flux de soudage à base de colophane
DE4130494A1 (de) * 1991-09-13 1993-04-01 Ant Nachrichtentech Reinigungsfluessigkeit
WO1993006204A1 (fr) * 1991-09-24 1993-04-01 The Dow Chemical Company Compositions de solvant et procede de nettoyage semi-aqueux
EP0587917A1 (fr) * 1992-08-07 1994-03-23 DR.O.K. WACK CHEMIE GmbH Agent de nettoyage

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1546075A1 (de) * 1965-04-05 1970-02-05 Atterby Per Albin Verfahren zum Reinigen und Korrosionsschuetzen von Metallen nebst hierzu geeigneten zusammengesetzten Mittel
US3882038A (en) * 1968-06-07 1975-05-06 Union Carbide Corp Cleaner compositions
US3939090A (en) * 1973-10-23 1976-02-17 Colgate-Palmolive Company Antifogging cleaner
DE3232915A1 (de) * 1982-09-04 1984-03-08 Bayer Ag, 5090 Leverkusen Verfahren zur entfernung von oelen und fetten aus schuettguetern
DE3247756A1 (de) * 1982-12-23 1984-06-28 Herberts Gmbh, 5600 Wuppertal Waessriges ueberzugsmittel
US4485131A (en) * 1983-03-04 1984-11-27 Pennwalt Corporation Alkaline aqueous coating solution and process
JPH0721638B2 (ja) * 1986-07-18 1995-03-08 東京応化工業株式会社 基板の処理方法
US4808235A (en) * 1987-01-20 1989-02-28 The Dow Chemical Company Cleaning gas turbine compressors
US5102573A (en) * 1987-04-10 1992-04-07 Colgate Palmolive Co. Detergent composition
US5186744A (en) * 1991-01-11 1993-02-16 Bodwell James R Propoxylated PTB coalescing agents for water-borne protective coatings
EP0516372B1 (fr) * 1991-05-29 1996-04-24 Fuji Photo Film Co., Ltd. Solution de mouillage concentrée pour l'impression lithographique
US5190595A (en) * 1991-09-03 1993-03-02 International Business Machines Corporation Ozone safe stripping solution for thermal grease
DE4138432C1 (fr) * 1991-11-22 1993-02-18 Aichelin Gmbh, 7015 Korntal-Muenchingen, De
JP2652298B2 (ja) * 1992-04-30 1997-09-10 花王株式会社 精密部品又は治工具類用洗浄剤組成物
DE9305637U1 (de) * 1993-04-15 1993-06-17 Dr. O.K. Wack Chemie GmbH, 8070 Ingolstadt Vorrichtung zur Reinigung von Gegenständen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01149981A (ja) * 1987-12-07 1989-06-13 Showa Shell Sekiyu Kk 水溶性脱脂組成物
EP0376367A1 (fr) * 1988-12-29 1990-07-04 METALLGESELLSCHAFT Aktiengesellschaft Agent aqueux pour nettoyer des surfaces métalliques
EP0426943A2 (fr) * 1989-11-08 1991-05-15 Arakawa Chemical Industries, Ltd. Composition et méthode pour enlever un flux de soudage à base de colophane
DE4130494A1 (de) * 1991-09-13 1993-04-01 Ant Nachrichtentech Reinigungsfluessigkeit
WO1993006204A1 (fr) * 1991-09-24 1993-04-01 The Dow Chemical Company Compositions de solvant et procede de nettoyage semi-aqueux
EP0587917A1 (fr) * 1992-08-07 1994-03-23 DR.O.K. WACK CHEMIE GmbH Agent de nettoyage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 414 (C - 635)<3762> 13 September 1989 (1989-09-13) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5610132A (en) * 1994-06-24 1997-03-11 Tokuyama Corporation Cleaning agent for removing fats and oils from metal surfaces

Also Published As

Publication number Publication date
JPH07171521A (ja) 1995-07-11
DE59401027D1 (de) 1996-12-19
DE4325133A1 (de) 1995-02-02
CA2128846A1 (fr) 1995-01-28
ATE145254T1 (de) 1996-11-15
US5626818A (en) 1997-05-06
EP0636710B1 (fr) 1996-11-13

Similar Documents

Publication Publication Date Title
EP0181673B1 (fr) Procédé de nettoyage de récipients en aluminium
DE2743655B2 (de) Legierung zum Tauchgalvanisieren von Stühlen und Anwendung derselben
DE3779978T2 (de) Flussmittel ohne fluoriden fuer die verzinkung.
DE2711429A1 (de) Verfahren zur reinigung von zinn- oberflaechen
DE2448755A1 (de) Waessriges spuel- und ueberzugsmittel fuer harte oberflaechen
DE1182928B (de) Verfahren und Loesung zum Nachbehandeln von Phosphatschichten
DE102005055768A1 (de) Verfahren und Mittel zur elektrolytischen Reinigung und Entzunderung eines metallischen Werkstücks
DE3706711A1 (de) Verfahren zum reinigen von oberflaechen eines aluminiumgegenstandes
DE69534340T2 (de) Säurebehandlung von rostfreiem stahl
DE19733972A1 (de) Alkalische Bandpassivierung
DE2430501C3 (de) Beizverfahren für metallische Gegenstände, insbesondere für die kontinuierliche Behandlung von band- oder drahtförmigem Material, insbesondere aus rostfreiem Stahl
DE1169251B (de) Verfahren zum Beizen von Flussstahl
DE3925169A1 (de) Verfahren zur nachbehandlung von elektroplattierten, zum verloeten vorgesehenen stahlblechen
CH619986A5 (en) Rust-dissolving cleaning agents and process for their preparation and their use
EP0636710B1 (fr) Procédé pour le nettoyage d&#39;objects
WO2019115628A1 (fr) Procédé de décapage pour profilés, bandes laminées et tôles en alliages d&#39;aluminium
EP0234425B1 (fr) Procédé de nettoyage de récipients en aluminium
WO2005024099A1 (fr) Procede d&#39;electropolissage
DE2041871C3 (de) Verfahren zur Vorbehandlung von Rost aufweisenden, eisenhaltigen Oberflächen für die elektrophoretische Lackierung
EP0264634B1 (fr) Agent brillant séchant pour la voiture
DE10309888B4 (de) Bearbeitungsfluid zur Oberflächenbearbeitung von Aluminium oder einer Aluminiumlegierung und entsprechendes Oberflächenbearbeitungsverfahren
DE3700842A1 (de) Verfahren zur reinigung von aluminiumbehaeltern
DE3217145A1 (de) Verfahren zum reinigen, entfetten sowie aktivieren von metalloberflaechen
DE2721573C2 (de) Verfahren zum Reinigen von anodischen Oxidschichten auf Aluminium oder dessen Legierungen im Bauwesen
DE10156624B4 (de) Verfahren und Beizlösung zum Abreinigen von Belägen eines Stahl-Werkstückes

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK FR GB IE LI NL PT SE

17P Request for examination filed

Effective date: 19950523

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960416

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK FR GB IE LI NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19961113

Ref country code: DK

Effective date: 19961113

REF Corresponds to:

Ref document number: 145254

Country of ref document: AT

Date of ref document: 19961115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59401027

Country of ref document: DE

Date of ref document: 19961219

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 70641

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970213

Ref country code: PT

Effective date: 19970213

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970617

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970630

Ref country code: BE

Effective date: 19970630

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 70641

Country of ref document: IE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970722

Year of fee payment: 4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: O.K. WACK CHEMIE G.M.B.H.

Effective date: 19970630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980622

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST