EP0059994A1 - Procédé pour la fabrication de révêtements de phosphate sur des sufaces métalliques - Google Patents

Procédé pour la fabrication de révêtements de phosphate sur des sufaces métalliques Download PDF

Info

Publication number: EP0059994A1
Authority: EP; European Patent Office
Prior art keywords: metal surfaces; phosphating bath; weight ratio; contact; phosphating
Prior art date: 1981-03-06
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

EP82200190A

Other languages

German (de)

English (en)

Other versions

EP0059994B1 (fr

Inventor

Günter Siemund

Han-Yong Dr. Dipl.-Chem. Oei

Herbert Liebl

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 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.)

1981-03-06

Filing date

1982-02-18

Publication date

1982-09-15

1982-02-18 Application filed by Metallgesellschaft AG, Continentale Parker Ste, Continentale Parker SA filed Critical Metallgesellschaft AG

1982-09-15 Publication of EP0059994A1 publication Critical patent/EP0059994A1/fr

1984-12-27 Application granted granted Critical

1984-12-27 Publication of EP0059994B1 publication Critical patent/EP0059994B1/fr

Status Expired legal-status Critical Current

Links

229910052751 metal Inorganic materials 0.000 title claims abstract description 20
239000002184 metal Substances 0.000 title claims abstract description 20
229910019142 PO4 Inorganic materials 0.000 title claims abstract description 17
239000010452 phosphate Substances 0.000 title claims abstract description 17
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 17
238000000576 coating method Methods 0.000 title claims abstract description 7
238000000034 method Methods 0.000 title claims description 20
238000004519 manufacturing process Methods 0.000 title abstract description 5
XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims abstract description 26
229910002651 NO3 Inorganic materials 0.000 claims abstract description 10
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 10
239000011701 zinc Substances 0.000 claims abstract description 10
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 8
LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims abstract description 6
229910000165 zinc phosphate Inorganic materials 0.000 claims abstract description 6
229910000831 Steel Inorganic materials 0.000 claims abstract description 5
230000002378 acidificating effect Effects 0.000 claims abstract description 5
238000007654 immersion Methods 0.000 claims abstract description 5
239000010959 steel Substances 0.000 claims abstract description 5
229910052742 iron Inorganic materials 0.000 claims abstract description 4
239000002253 acid Substances 0.000 claims description 4
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
238000002360 preparation method Methods 0.000 claims description 3
229910052725 zinc Inorganic materials 0.000 claims description 3
150000002500 ions Chemical class 0.000 claims description 2
TVWHTOUAJSGEKT-UHFFFAOYSA-N chlorine trioxide Chemical compound [O]Cl(=O)=O TVWHTOUAJSGEKT-UHFFFAOYSA-N 0.000 abstract 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
239000000243 solution Substances 0.000 description 5
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
239000000314 lubricant Substances 0.000 description 3
-1 nitrate ions Chemical class 0.000 description 3
KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
238000004873 anchoring Methods 0.000 description 2
239000012141 concentrate Substances 0.000 description 2
239000010949 copper Substances 0.000 description 2
238000005238 degreasing Methods 0.000 description 2
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
238000005554 pickling Methods 0.000 description 2
230000008719 thickening Effects 0.000 description 2
229910004261 CaF 2 Inorganic materials 0.000 description 1
BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
206010013786 Dry skin Diseases 0.000 description 1
CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
230000003213 activating effect Effects 0.000 description 1
239000000654 additive Substances 0.000 description 1
229910021538 borax Inorganic materials 0.000 description 1
239000011575 calcium Substances 0.000 description 1
229910001424 calcium ion Inorganic materials 0.000 description 1
239000010941 cobalt Substances 0.000 description 1
229910017052 cobalt Inorganic materials 0.000 description 1
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
239000013078 crystal Substances 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
238000007598 dipping method Methods 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
230000009189 diving Effects 0.000 description 1
238000001035 drying Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
239000004571 lime Substances 0.000 description 1
239000011707 mineral Substances 0.000 description 1
239000000203 mixture Substances 0.000 description 1
229910052759 nickel Inorganic materials 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000008149 soap solution Substances 0.000 description 1
239000004328 sodium tetraborate Substances 0.000 description 1
235000010339 sodium tetraborate Nutrition 0.000 description 1
239000013589 supplement Substances 0.000 description 1
229950011008 tetrachloroethylene Drugs 0.000 description 1
JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical compound [Ti+4].[Ti+4].[Ti+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JUWGUJSXVOBPHP-UHFFFAOYSA-B 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
- 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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/14—Orthophosphates containing zinc cations containing also chlorate anions

Definitions

aqueous acidic zinc phosphate solutions which contain chlorate as an accelerator and additionally nitrate to apply phosphate coatings to metal surfaces by immersion or flooding.
chlorate-containing zinc phosphate solutions a weight ratio of P 2 O 5 : Z n in the range of approximately 1: (0.2 to 0.7) is usually observed (cf. for example DE-OS 21 06 626).
calcium ions in such solutions in order to refine the phosphate layer (cf. for example DE-PS 10 96 152). However, this extends the treatment time until a closed phosphate layer is formed on the metal surfaces.
the object of the invention is to further improve the known method, in particular the aforementioned method, so that its use leads to phosphate layers which, in particular with regard to their thickness and intergrowth, meet the highest requirements.
Phosphating baths which only contain chlorate as accelerators can be used in the process according to the invention. In this case, its content must be at least 1.0 g / l (calculated as C10 3 ). If the phosphating bath also contains nitrate ions, the sum of chlorate and nitrate ions must be at least 1.0 g / 1. The nitrate content is determined as the oxidation equivalent based on chlorate.
a phosphating bath is preferably used which contains up to 5 g / 1 chlorate, in particular 0.2 to 2 g / 1 chlorate.
a further preferred embodiment of the invention consists in bringing the metal surfaces into contact with a phosphating bath which contains 5 to 20 g / 1 sulfate ions. This generally achieves the layer thickening effect and the excellent anchoring of the phosphate layer to a sufficient extent.
Concentrates are expediently used to prepare and supplement the phosphating bath used in the procedure according to the invention. It is advantageous to design them in such a way that - apart from the sulfate content - they contain as many components as possible. It is advisable to add the sulfate separately.
the phosphating bath should preferably contain 5 to 1000 mg / 1 Ni and / or 1 to 50 mg / 1 Cu ions.
the workpieces to be treated must be free of rust and scale.
a possible course of treatment is, for example: degreasing with organic solvents or alkaline cleaners (the latter is then rinsed with water), pickling in mineral acids, such as HC1 or H 2 S0 4 , to remove scale and rust, rinsing with cold water.
the workpieces can then be treated in the process according to the invention at temperatures between 35 and 98 ° C and a bath number of at least 20 5 to 15 minutes in immersion or flooding.
the phosphating bath is supplemented with the supplementary concentrate mentioned.
the surface of the workpieces can be activated by pre-rinsing with hot water or with activating titanium orthophosphate dispersions. After phosphating, the workpieces are rinsed with cold water and can then ach Whyillonen with passivating N or in cold formed parts with lubricants and optionally lubricant carrier salts, such as borax or lime-treated.
lubricant carrier salts such as borax or lime-treated.
the method according to the invention has proven particularly useful as a preparation for non-cutting cold forming. However, it is also advantageous in the other fields of application of phosphating, e.g. Use corrosion protection, to facilitate sliding friction.
the phosphating baths had the following composition:
the phosphate layers produced using baths containing sulfate ions are of considerably greater thickness.

Landscapes

Chemical & Material Sciences (AREA)
General Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Chemical Treatment Of Metals (AREA)

EP82200190A 1981-03-06 1982-02-18 Procédé pour la fabrication de révêtements de phosphate sur des sufaces métalliques Expired EP0059994B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3108484		1981-03-06
DE19813108484 DE3108484A1 (de)	1981-03-06	1981-03-06	Verfahren zur herstellung von phosphatueberzuegen auf metalloberflaechen

Publications (2)

Publication Number	Publication Date
EP0059994A1 true EP0059994A1 (fr)	1982-09-15
EP0059994B1 EP0059994B1 (fr)	1984-12-27

Family

ID=6126487

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP82200190A Expired EP0059994B1 (fr)	1981-03-06	1982-02-18	Procédé pour la fabrication de révêtements de phosphate sur des sufaces métalliques

Country Status (7)

Country	Link
US (1)	US4416705A (fr)
EP (1)	EP0059994B1 (fr)
JP (1)	JPS6045705B2 (fr)
CA (1)	CA1175606A (fr)
DE (2)	DE3108484A1 (fr)
GB (1)	GB2094356B (fr)
IT (1)	IT1150234B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3245411A1 (de) *	1982-12-08	1984-07-05	Gerhard Collardin GmbH, 5000 Köln	Verfahren zur phosphatierung elektrolytisch verzinkter metallwaren
JPS619580A (ja) *	1984-06-25	1986-01-17	Nippon Parkerizing Co Ltd	黒色化リン酸塩処理方法
CA1257527A (fr) *	1984-12-20	1989-07-18	Thomas W. Tull	Procede de deformation a froid avec enduction lubrifiante amelioree
JPS63270478A (ja) *	1986-12-09	1988-11-08	Nippon Denso Co Ltd	リン酸塩化成処理方法
ES2058464T3 (es) *	1988-02-03	1994-11-01	Metallgesellschaft Ag	Procedimiento para la generacion de recubrimiento de fosfato sobre metales.
IT1295500B1 (it) *	1997-10-21	1999-05-12	Pierangelo Girardello	Procedimento per la lavorazione dei metalli e prodotto ottenuto con detto procedimento.
RU2354747C1 (ru) *	2007-07-17	2009-05-10	Закрытое акционерное общество "ФК"	Способ получения фосфатного покрытия
RU2365675C2 (ru) *	2007-09-24	2009-08-27	Закрытое акционерное общество "ФК"	Способ получения фосфатного покрытия
US11518960B2 (en)	2016-08-24	2022-12-06	Ppg Industries Ohio, Inc.	Alkaline molybdenum cation and phosphonate-containing cleaning composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2106626A1 (de) *	1970-03-04	1971-09-23	Metallgesellschaft Ag	Verfahren zur Herstellung eines Phosphatüberzuges auf Metalloberflächen
US4071379A (en) *	1976-01-28	1978-01-31	Imperial Chemical Industries Limited	Phosphating method
DE2239813B2 (de) *	1971-09-20	1980-03-20	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zur Ergänzung einer Zinkphosphat und Chlorat enthaltenden Lösung für die Spritzphosphatierung
EP0019430A1 (fr) *	1979-05-11	1980-11-26	Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America	Composition et procédé pour revêtir la surface d'un métal de phosphate de zinc et procédé pour le vernissage de la surface revêtue

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1159728B (de) *	1954-04-24	1963-12-19	Metallgesellschaft Ag	Verfahren zum Aufbringen von Phosphatueberzuegen
DE1231523B (de) *	1962-03-20	1966-12-29	Metallgesellschaft Ag	Verfahren zur Verbesserung eines zur elektrischen Isolierung auf Blechen und Baendern aus Eisen und Stahl aufgebrachten Phosphatueberzugs
DE1521879B2 (de) *	1966-07-12	1975-08-28	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zum Aufbringen von Phosphatüberzügen auf Eisen und Stahl
DE1796102A1 (de) *	1968-08-31	1972-02-17	Metallgesellschaft Ag	Verfahren zum Aufbringen eines Phosphatueberzuges auf Oberflaechen von Eisen und Stahl
GB1296883A (fr) *	1970-03-04	1972-11-22

1981
- 1981-03-06 DE DE19813108484 patent/DE3108484A1/de not_active Withdrawn
1982
- 1982-02-15 JP JP57022578A patent/JPS6045705B2/ja not_active Expired
- 1982-02-18 DE DE8282200190T patent/DE3261654D1/de not_active Expired
- 1982-02-18 EP EP82200190A patent/EP0059994B1/fr not_active Expired
- 1982-02-26 CA CA000397227A patent/CA1175606A/fr not_active Expired
- 1982-02-26 US US06/352,925 patent/US4416705A/en not_active Expired - Fee Related
- 1982-03-03 IT IT19938/82A patent/IT1150234B/it active
- 1982-03-05 GB GB8206579A patent/GB2094356B/en not_active Expired

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2106626A1 (de) *	1970-03-04	1971-09-23	Metallgesellschaft Ag	Verfahren zur Herstellung eines Phosphatüberzuges auf Metalloberflächen
DE2239813B2 (de) *	1971-09-20	1980-03-20	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zur Ergänzung einer Zinkphosphat und Chlorat enthaltenden Lösung für die Spritzphosphatierung
US4071379A (en) *	1976-01-28	1978-01-31	Imperial Chemical Industries Limited	Phosphating method
EP0019430A1 (fr) *	1979-05-11	1980-11-26	Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America	Composition et procédé pour revêtir la surface d'un métal de phosphate de zinc et procédé pour le vernissage de la surface revêtue

Also Published As

Publication number	Publication date
EP0059994B1 (fr)	1984-12-27
JPS6045705B2 (ja)	1985-10-11
US4416705A (en)	1983-11-22
CA1175606A (fr)	1984-10-09
DE3108484A1 (de)	1982-09-23
GB2094356B (en)	1984-08-08
GB2094356A (en)	1982-09-15
JPS57152473A (en)	1982-09-20
IT1150234B (it)	1986-12-10
DE3261654D1 (en)	1985-02-07
IT8219938A0 (it)	1982-03-03

Legal Events

Date	Code	Title	Description
1982-07-16	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
1982-09-15	AK	Designated contracting states	Designated state(s): BE DE FR NL SE
1983-05-04	17P	Request for examination filed	Effective date: 19830224
1984-07-04	RBV	Designated contracting states (corrected)	Designated state(s): BE DE FR NL SE
1984-10-26	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1984-12-27	AK	Designated contracting states	Designated state(s): BE DE FR NL SE
1984-12-27	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: SOCIETE CONTINENTALE PARKER Owner name: METALLGESELLSCHAFT AG
1985-02-07	REF	Corresponds to:	Ref document number: 3261654 Country of ref document: DE Date of ref document: 19850207
1985-02-15	ET	Fr: translation filed
1985-10-24	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1985-10-24	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1985-12-27	26N	No opposition filed
1991-12-17	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19911217 Year of fee payment: 11
1992-01-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19920115 Year of fee payment: 11
1992-02-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19920226 Year of fee payment: 11
1992-02-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19920229 Year of fee payment: 11
1992-03-02	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19920302 Year of fee payment: 11
1993-02-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19930219
1993-02-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19930228
1993-08-31	BERE	Be: lapsed	Owner name: SOC. CONTINENTALE PARKER Effective date: 19930228
1993-09-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19930901
1993-10-18	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1993-10-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19931029
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1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 82200190.5 Effective date: 19930912

Publication	Publication Date	Title
EP0045110B1 (fr)	1984-10-10	Procédé pour la production de revêtements de phosphate sur les surfaces de fer et d'acier et son usage
EP0056881B1 (fr)	1986-02-12	Procédé pour la phosphatation de métaux
EP0064790A1 (fr)	1982-11-17	Procédé pour la phosphatation de métaux ainsi que son utilisation pour le prétraitement pour la peinture électrique au trempé
EP0269138B1 (fr)	1990-11-28	Procédé pour produire des revêtements de phosphate sur des métaux
EP0478648B1 (fr)	1995-01-18	Procede de production d'enduits en phosphate de zinc contenant du manganese et du magnesium
EP0359296B1 (fr)	1993-02-17	Procédé de phosphatation
DE2552122A1 (de)	1976-05-26	Waessrige, saure zinkphosphatierloesung und ihre verwendung zur herstellung von zinkphosphatumwandlungsueberzuegen
EP0059994B1 (fr)	1984-12-27	Procédé pour la fabrication de révêtements de phosphate sur des sufaces métalliques
DE3543733A1 (de)	1986-07-03	Verfahren zur erleichterung der kaltverformung
DE2538347C3 (de)	1981-10-08	Zinkphosphatlösungen zur Ausbildung von Zinkphosphatschichten auf Metallen
EP0042631B1 (fr)	1984-10-31	Procédé de phosphatation de surfaces métalliques
EP0288853A1 (fr)	1988-11-02	Procédé pour le traitement préparatoire de pièces en titane ou en alliages de titane
DE19808440C2 (de)	2000-08-24	Wässrige Lösung und Verfahren zur Phosphatierung metallischer Oberflächen sowie eine Verwendung der Lösung und des Verfahrens
EP0121274A1 (fr)	1984-10-10	Procédé de phosphatation de surfaces métalliques
EP0258922A1 (fr)	1988-03-09	Procédé pour produire des revêtements de phosphate et leur utilisation
DE4306446A1 (de)	1994-09-08	Verfahren zur Erleichterung der Kaltumformung
DE2540685C2 (de)	1985-06-27	Verfahren zur Herstellung von Phosphatüberzügen
EP0711849A1 (fr)	1996-05-15	Procédé pour appliquer des revêtements de phosphate
DE1188898B (de)	1965-03-11	Verfahren zur Phosphatierung von Eisen und Stahl
DE1088311B (de)	1960-09-01	Verfahren zur Herstellung festhaftender Schutzueberzuege auf Oberflaechen aus Titan,Zirkon oder Legierungen derselben
DE2213781B2 (de)	1977-03-17	Verfahren zur phosphatierung von stahl
AT325372B (de)	1975-10-27	Verfahren zur phosphatierung von stahl
DE729262C (de)	1942-12-14	Verfahren zur Erzeugung von Phosphatueberzuegen auf Eisen und Stahl
DE2240049B2 (de)	1977-05-12	Verfahren zur herstellung von phosphatueberzuegen auf eisen und stahl und konzentrate zur herstellung und ergaenzung der dabei verwendeten phosphatierungsloesung
DE1911972A1 (de)	1970-10-01	Verfahren zur Tauchphosphatierung von Eisen und Stahl