EP0214571A1 - Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages de zinc - Google Patents

Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages de zinc Download PDF

Info

Publication number: EP0214571A1
Authority: EP; European Patent Office
Prior art keywords: zinc; chromating solution; chromating; contact; brought
Prior art date: 1985-09-05
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

EP86111976A

Other languages

German (de)

English (en)

Other versions

EP0214571B1 (fr

Inventor

Kenshi Saeki

Kazuyuki Oyama

Iwao Kawasaki

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.)

Nihon Parkerizing Co Ltd

Original Assignee

Nihon Parkerizing Co Ltd

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.)

1985-09-05

Filing date

1986-08-29

Publication date

1987-03-18

1986-08-29 Application filed by Nihon Parkerizing Co Ltd filed Critical Nihon Parkerizing Co Ltd

1987-03-18 Publication of EP0214571A1 publication Critical patent/EP0214571A1/fr

1989-01-18 Application granted granted Critical

1989-01-18 Publication of EP0214571B1 publication Critical patent/EP0214571B1/fr

Status Expired legal-status Critical Current

Links

238000006243 chemical reaction Methods 0.000 title claims abstract description 14
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 13
239000011701 zinc Substances 0.000 title claims abstract description 13
229910052725 zinc Inorganic materials 0.000 title claims abstract description 13
229910001297 Zn alloy Inorganic materials 0.000 title claims abstract description 8
238000000034 method Methods 0.000 title claims description 17
230000008569 process Effects 0.000 title claims description 6
238000004532 chromating Methods 0.000 claims abstract description 37
239000011651 chromium Substances 0.000 claims abstract description 20
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 15
229910052804 chromium Inorganic materials 0.000 claims abstract description 15
KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims abstract description 10
AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims abstract description 10
229910019142 PO4 Inorganic materials 0.000 claims abstract description 8
238000001035 drying Methods 0.000 claims abstract description 8
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 8
239000010452 phosphate Substances 0.000 claims abstract description 7
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 3
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract 8
239000000377 silicon dioxide Substances 0.000 claims abstract 4
229910052751 metal Inorganic materials 0.000 claims description 10
239000002184 metal Substances 0.000 claims description 10
230000002378 acidificating effect Effects 0.000 claims description 2
150000002500 ions Chemical class 0.000 abstract description 6
238000004519 manufacturing process Methods 0.000 abstract description 3
WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 2
229910001430 chromium ion Inorganic materials 0.000 abstract 1
230000007797 corrosion Effects 0.000 description 11
238000005260 corrosion Methods 0.000 description 11
238000012360 testing method Methods 0.000 description 8
239000011248 coating agent Substances 0.000 description 6
238000000576 coating method Methods 0.000 description 6
239000003973 paint Substances 0.000 description 6
230000008901 benefit Effects 0.000 description 5
230000000694 effects Effects 0.000 description 4
150000003839 salts Chemical class 0.000 description 4
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 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
238000005554 pickling Methods 0.000 description 3
239000007921 spray Substances 0.000 description 3
229910001335 Galvanized steel Inorganic materials 0.000 description 2
OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
239000002390 adhesive tape Substances 0.000 description 2
238000002474 experimental method Methods 0.000 description 2
230000002349 favourable effect Effects 0.000 description 2
239000008397 galvanized steel Substances 0.000 description 2
239000008237 rinsing water Substances 0.000 description 2
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
235000012239 silicon dioxide Nutrition 0.000 description 2
239000007787 solid Substances 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
239000004254 Ammonium phosphate Substances 0.000 description 1
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
239000001263 FEMA 3042 Substances 0.000 description 1
LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 1
229920002472 Starch Polymers 0.000 description 1
PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
239000002253 acid Substances 0.000 description 1
239000004480 active ingredient Substances 0.000 description 1
230000032683 aging Effects 0.000 description 1
239000003513 alkali Substances 0.000 description 1
229920000180 alkyd Polymers 0.000 description 1
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
229910000148 ammonium phosphate Inorganic materials 0.000 description 1
235000019289 ammonium phosphates Nutrition 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000005238 degreasing Methods 0.000 description 1
238000013461 design Methods 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
238000007598 dipping method Methods 0.000 description 1
235000019441 ethanol Nutrition 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
LRBQNJMCXXYXIU-QWKBTXIPSA-N gallotannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@H]2[C@@H]([C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-QWKBTXIPSA-N 0.000 description 1
230000006872 improvement Effects 0.000 description 1
239000012535 impurity Substances 0.000 description 1
230000008595 infiltration Effects 0.000 description 1
238000001764 infiltration Methods 0.000 description 1
238000005342 ion exchange Methods 0.000 description 1
238000005259 measurement Methods 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
239000000203 mixture Substances 0.000 description 1
235000006408 oxalic acid Nutrition 0.000 description 1
238000010422 painting Methods 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
230000009467 reduction Effects 0.000 description 1
238000005507 spraying Methods 0.000 description 1
239000008107 starch Substances 0.000 description 1
235000019698 starch Nutrition 0.000 description 1
239000000758 substrate Substances 0.000 description 1
229940033123 tannic acid Drugs 0.000 description 1
235000015523 tannic acid Nutrition 0.000 description 1
229920002258 tannic acid Polymers 0.000 description 1
230000007704 transition Effects 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
- C23C22/34—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 fluorides or complex fluorides
- C23C22/37—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 fluorides or complex fluorides containing also hexavalent chromium compounds
- C23C22/38—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 fluorides or complex fluorides containing also hexavalent chromium compounds containing also phosphates

Definitions

the invention relates to a method for producing conversion layers on surfaces made of zinc or zinc alloys by means of aqueous acidic chromating solutions which contain chromium VI, chromium III and phosphate.
drying processes i.e. Processes in which the chromating solution is dried without rinsing water at ambient temperature or, in particular, at elevated temperature, are becoming increasingly important.
the advantage of such processes is, in particular, that no rinsing water is obtained and that the conversion layers obtained in this way impart excellent corrosion resistance.
the treatment solutions e.g. change less by adding zinc or reducing chromium VI to chromium III than those in which the conversion layer is in constant contact with the solution.
the object of the invention is to provide a method for producing conversion layers on surfaces made of zinc or zinc alloys, the chromating solution of which has a longer service life, which leads to excellent conversion layers with regard to corrosion protection and adhesion promotion for a coating which may subsequently be applied and which is nevertheless simple to carry out .
the object is achieved by designing the method of the type mentioned at the outset in accordance with the invention in such a way that the metal surface is brought into contact with a chromating solution which contains in which the weight ratio is set and then the chromating solution is dried.
the method is suitable for the treatment of workpieces which consist of solid zinc or solid zinc alloys, but in particular are coated with zinc or zinc alloys, e.g. galvanized steel sheet or strip.
chromic acid is introduced as such in the simplest way.
the chromium III ions can be added via suitable salts, but with particular advantage by reducing chromium VI by means of, for example, oxalic acid, tannic acid, starch, alcohol, hydrazine or citric acid.
the phosphate content can be adjusted by adding phosphoric acid, ammonium phosphate and the like.
the design of the F luorozirkonatgehaltes can mmoniumhexafluorozirkonat by entry of A or be made of the free acid.
Ad healer at the addition of B should be taken to ensure that an entry of alkali ions is possible.
the concentrations of the active ingredients of the C hromat istswishing are critical in that in a chromic acid concentration below 10 g / 1, the K generated not onversions Anlagenen possess the required quality, at a concentration more than 100 g / 1 due to excessive layer weight decreases the paint adhesion.
hromkonzentrationen C under 1 g / 1 can according to the particular protection against corrosion. It should also be noted that only certain paints can then be applied, ie the otherwise existing universal type of painting is partially lost. At concentrations above 21 g / 1, it is difficult to avoid the formation of precipitates in the chromating solution.
the phosphate that is incorporated with in the conversion layer is, ac onversion in particular for the uniform appearance and excellent K H aftvaff for a subsequently applied paint responsible. If its concentration is below 0.1 g / 1, the aforementioned effects are only present to a small extent. At concentrations above 4 g / 1, the proportion of the phosphate in the K ac onversion greatly, which is associated with a decreased corrosion resistance.
the fluorozirconate ion intensified the pickling attack on the Z inkober Designs. Its ability to bind metal ions complex, probably decisive for increasing the service life of the chromate or for their ability over a long period K onversionstiken of excellent quality to form his.
the chromium VI chromium III weight ratio also determines the uniformity of the conversion layers produced, but is also responsible for the long service life of the chromating solution and the universal type of coating. When leaving the area, these advantages no longer exist. Also the Weight ratios of chromic acid: fluorozirconate and phosphate: F luorozirkonat are critical in that it leaves the dimensioning rule the favorable results lost corrosion resistance, adhesion and paintability universal respect.
the corrosion resistance and the adhesion of K generated by the inventive method ac onversion can be further improved when the surface is contacted with a chromating solution in contact according to a preferred embodiment of the invention, which additionally contains from 0.1 to 200 g / 1 silicate or silicic acid .
a chromating solution in contact according to a preferred embodiment of the invention, which additionally contains from 0.1 to 200 g / 1 silicate or silicic acid .
the improvement obtained is only very slightly, at higher levels, the coating weight increases considerably, whereby the L ackhaftung is reduced.
the best results are achieved when bringing in accordance with a further advantageous embodiment of the invention the metal surface with a chromating solution in contact, in which the G ewichtsverältnis of chromic acid: silicic acid to (10 to 0.5) is set. 1
the p H value is in the range from 0.6 to 4.
the chromating solution is usually used at a temperature which ranges from ambient to 50 ° C.
the contact with the surface consisting of zinc or a zinc alloy is best done by roller application, spraying or dipping. Any excess chromating solution should be removed as soon as possible, for example using pinch rollers. In this way can be achieved in a particularly simple manner that a determined and constant S results chichtmati.
a particularly advantageous embodiment of the invention provides to bring the metal surface with the phosphating solution such contact, that after drying an S chichtsati from 10 to 200 mg / m 2, preferably from 15 to 100 mg / m 2 (calc. As Cr ), results.
Excess chromating solution removed using squeeze rolls can be returned to the treatment bath and thereby reused.
drying is carried out without intermediate rinsing. This can be done at ambient temperature or at elevated temperature, e.g. in a convection oven.
E ingeölte sheets of galvanized steel were treated according to the process transition alkaline degreasing, water rinsing, squeezing out with rolls, roller application of the chromating solution at room temperature and drying.
the compositions of this C hromat istsliten used are given in Table 1 below.
the layer weights produced with all chromating solutions were 20 to 25 mg / m 2 (calculated as Cr).
Table 2 contains information about the corrosion resistance achieved with the conversion layers and the paint adhesion. Column 2 shows the corrosion determined after 48 or 72 hours of the salt spray test, based on the total area, in percent. Column 3 lists the test results achieved with regard to paint adhesion. The test panels had been provided to the measurement with a melamine-alkyd paint of 25 / um thickness. The evaluation was done by determining the L ackentfernung after sticking and tearing off an adhesive tape with the grades 5 to 1. In this case, mean
test plate In the E richsen test, the test plate is first dented slowly by pushing in a ball until a bulge with a height of 7 mm is created. In the impact recess, a falling body with a weight of 1 kg and a punch diameter of 12.7 mm is dropped on the test sheet from a height of 30 cm. The top and back of the deformed area are evaluated.

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)
Preventing Corrosion Or Incrustation Of Metals (AREA)

EP86111976A 1985-09-05 1986-08-29 Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages de zinc Expired EP0214571B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP194940/85		1985-09-05
JP60194940A JPS6256580A (ja)	1985-09-05	1985-09-05	亜鉛系メツキ鋼板のクロメ−ト塗布液

Publications (2)

Publication Number	Publication Date
EP0214571A1 true EP0214571A1 (fr)	1987-03-18
EP0214571B1 EP0214571B1 (fr)	1989-01-18

Family

ID=16332863

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP86111976A Expired EP0214571B1 (fr)	1985-09-05	1986-08-29	Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages de zinc

Country Status (9)

Country	Link
US (1)	US4749418A (fr)
EP (1)	EP0214571B1 (fr)
JP (1)	JPS6256580A (fr)
AU (1)	AU584454B2 (fr)
CA (1)	CA1274156A (fr)
DE (2)	DE3661845D1 (fr)
GB (1)	GB2180263B (fr)
NZ (1)	NZ217245A (fr)
ZA (1)	ZA866712B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
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EP0348890A1 (fr) *	1988-06-30	1990-01-03	Nkk Corporation	Procédé de fabrication de tôles d'acier traitées en surface, à résistance élevée à la corrosion
WO1991005078A1 (fr) *	1989-09-27	1991-04-18	Henkel Corporation	Composition et procede de chromatage d'acier galvanise et de materiau analogue
WO1992006225A1 (fr) *	1990-10-08	1992-04-16	Henkel Corporation	Procede de traitement d'acier galvanise par chromatage
EP0877832A4 (fr) *	1995-11-30	1999-02-24	Henkel Corp	Composition d'un bain de traitement au chromate et procede d'application a des metaux
WO1999014398A1 (fr) *	1997-09-12	1999-03-25	Henkel Kommanditgesellschaft Auf Aktien	CHROMATATION OU POSTPASSIVATION AVEC DES SOLUTIONS STABILISEES A BASE DE Cr(III)/Cr(VI)
US6149735A (en) *	1995-11-30	2000-11-21	Henkel Corporation	Chromate treatment bath composition and process for application to metals
EP1024905A4 (fr) *	1997-08-21	2000-12-13	Henkel Corp	Procede de revetement et/ou de retouche de revetements sur des surfaces metalliques
WO2002055758A3 (fr) *	2000-10-31	2004-02-12	Us Navy	Revetement anti-corrosion pour aluminium et alliages d'aluminium
WO2003040431A3 (fr) *	2001-11-06	2004-03-04	Us Navy	Post-traitement pour substrats revetus de metal
US10435806B2 (en)	2015-10-12	2019-10-08	Prc-Desoto International, Inc.	Methods for electrolytically depositing pretreatment compositions

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6352338A (ja) *	1987-05-29	1988-03-05	Mitsubishi Electric Corp	ディスク再生装置
GB2215740B (en) *	1988-02-08	1992-06-03	Brent Chemicals Int	Composition and process for treating metal surfaces
JPH01249331A (ja) *	1988-03-31	1989-10-04	Toyo Kohan Co Ltd	加工性に優れたポリエステル樹脂被覆金属板の製造方法
JPH0230771A (ja) *	1988-07-19	1990-02-01	Nkk Corp	高耐食性表面処理鋼板の製造方法
JPH02243772A (ja) *	1989-03-17	1990-09-27	Nisshin Steel Co Ltd	亜鉛めっき鋼板の高耐食クロメート処理液および処理方法
JPH0753911B2 (ja) *	1989-04-07	1995-06-07	日本パーカライジング株式会社	亜鉛系めっき鋼板のクロメート処理方法
JP2879344B2 (ja) *	1989-04-07	1999-04-05	富山化学工業株式会社	３―ホルミルアミノ―７―メチルスルホニルアミノ―６―フェノキシ―４ｈ―１―ベンゾピラン―４―オンまたはその塩を含有する抗炎症製剤
CA2019861C (fr) *	1990-06-26	1995-10-17	Hiroaki Kawamura	Feuille d'acier etame a double couche de chrome et pellicule de resine de copolyester, et methode de fabrication
LT3218B (en)	1993-03-27	1995-04-25	Chemijos Inst	Method for coating zinc alloy by chromium plating
JP3288152B2 (ja) *	1993-08-14	2002-06-04	日本パーカライジング株式会社	耐黒変性及び耐白錆性に優れた亜鉛系めっき鋼板の製造方法
US7314671B1 (en)	1996-04-19	2008-01-01	Surtec International Gmbh	Chromium(VI)-free conversion layer and method for producing it
DE19615664A1 (de)	1996-04-19	1997-10-23	Surtec Produkte Und Systeme Fu	Chrom(VI)freie Chromatschicht sowie Verfahren zu ihrer Herstellung
AU715756B2 (en) *	1996-04-26	2000-02-10	Henkel Corporation	Chromate passivating and storage stable concentrate solutions therefor
KR100370472B1 (ko) *	1998-12-02	2003-04-10	주식회사 포스코	강판의내식성및표면외관을향상시키는3가크롬용액
DE102004032561B3 (de) *	2004-07-05	2006-02-09	Heraeus Electro-Nite International N.V.	Behälter für Metallschmelze sowie Verwendung des Behälters
US20060240191A1 (en) *	2005-04-21	2006-10-26	The U.S. Of America As Represented By The Secretary Of The Navy	Composition and process for preparing chromium-zirconium coatings on metal substrates
RU2010147566A (ru) *	2008-04-25	2012-05-27	ХЕНКЕЛЬ АГ энд Ко. КГаА (DE)	Пассивирующие вещества на основе трехвалентного хрома для обработки оцинкованной стали
US8273190B2 (en) *	2009-05-29	2012-09-25	Bulk Chemicals, Inc.	Method for making and using chromium III salts
US20110070429A1 (en) *	2009-09-18	2011-03-24	Thomas H. Rochester	Corrosion-resistant coating for active metals
RU2425911C1 (ru) *	2010-01-19	2011-08-10	Закрытое акционерное общество "ФК"	Хроматирующий состав для обработки оцинкованной поверхности
US8425692B2 (en)	2010-05-27	2013-04-23	Bulk Chemicals, Inc.	Process and composition for treating metal surfaces
WO2019152556A1 (fr)	2018-01-30	2019-08-08	Prc-Desoto International, Inc.	Systèmes et procédés de traitement d'un substrat métallique

Citations (1)

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- 1986-08-29 DE DE8686111976T patent/DE3661845D1/de not_active Expired
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EP0348890A1 (fr) *	1988-06-30	1990-01-03	Nkk Corporation	Procédé de fabrication de tôles d'acier traitées en surface, à résistance élevée à la corrosion
WO1991005078A1 (fr) *	1989-09-27	1991-04-18	Henkel Corporation	Composition et procede de chromatage d'acier galvanise et de materiau analogue
US5091023A (en) *	1989-09-27	1992-02-25	Henkel Corporation	Composition and process for chromating galvanized steel and like materials
WO1992006225A1 (fr) *	1990-10-08	1992-04-16	Henkel Corporation	Procede de traitement d'acier galvanise par chromatage
US5366567A (en) *	1990-10-08	1994-11-22	Henkel Corporation	Method for chromating treatment of zinc coated steel
US6149735A (en) *	1995-11-30	2000-11-21	Henkel Corporation	Chromate treatment bath composition and process for application to metals
EP0877832A4 (fr) *	1995-11-30	1999-02-24	Henkel Corp	Composition d'un bain de traitement au chromate et procede d'application a des metaux
EP1024905A4 (fr) *	1997-08-21	2000-12-13	Henkel Corp	Procede de revetement et/ou de retouche de revetements sur des surfaces metalliques
US6361622B1 (en)	1997-08-21	2002-03-26	Henkel Corporation	Process for coating and/or touching up coatings on metal surfaces
USRE40406E1 (en)	1997-08-21	2008-07-01	Henkel Kgaa	Process for coating and/or touching up coatings on metallic surfaces
WO1999014398A1 (fr) *	1997-09-12	1999-03-25	Henkel Kommanditgesellschaft Auf Aktien	CHROMATATION OU POSTPASSIVATION AVEC DES SOLUTIONS STABILISEES A BASE DE Cr(III)/Cr(VI)
WO2002055758A3 (fr) *	2000-10-31	2004-02-12	Us Navy	Revetement anti-corrosion pour aluminium et alliages d'aluminium
WO2003040431A3 (fr) *	2001-11-06	2004-03-04	Us Navy	Post-traitement pour substrats revetus de metal
US10435806B2 (en)	2015-10-12	2019-10-08	Prc-Desoto International, Inc.	Methods for electrolytically depositing pretreatment compositions
US11591707B2 (en)	2015-10-12	2023-02-28	Ppg Industries Ohio, Inc.	Methods for electrolytically depositing pretreatment compositions
US12104272B2 (en)	2015-10-12	2024-10-01	Prc-Desoto International, Inc.	Treated substrates

Also Published As

Publication number	Publication date
ZA866712B (en)	1987-11-25
CA1274156A (fr)	1990-09-18
NZ217245A (en)	1988-10-28
JPS6256580A (ja)	1987-03-12
DE3661845D1 (en)	1989-02-23
EP0214571B1 (fr)	1989-01-18
GB8621414D0 (en)	1986-10-15
GB2180263A (en)	1987-03-25
AU6181586A (en)	1987-03-12
US4749418A (en)	1988-06-07
JPH0419313B2 (fr)	1992-03-30
GB2180263B (en)	1989-08-16
AU584454B2 (en)	1989-05-25
DE3629382A1 (de)	1987-03-05

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Publication	Publication Date	Title
EP0214571B1 (fr)	1989-01-18	Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages de zinc
DE3004927C2 (fr)	1989-08-17
EP0774016B1 (fr)	1999-07-28	Procede de phosphatage sans rin age final
EP0287133B1 (fr)	1992-03-25	Procédé de phosphatation avant la peinture électrophorétique par immersion
DE3234558C2 (fr)	1989-02-09
EP1200641A1 (fr)	2002-05-02	Traitement prealable de surfaces d'aluminium a l'aide de solutions exemptes de chrome
EP0796356B1 (fr)	1998-11-04	Procede d'application de revetements de phosphate sur des surfaces metalliques
DE3650659T2 (de)	1998-07-02	Verfahren zur Phosphatierung von Metalloberflächen
DE2446492A1 (de)	1975-04-17	Verfahren zur oberflaechenbehandlung von aluminium und aluminiumlegierungen
DE69119138T2 (de)	1996-08-14	Verfahren zur Phosphatierung von Metalloberflächen
EP0359296B1 (fr)	1993-02-17	Procédé de phosphatation
DE69103152T2 (de)	1995-01-26	Zusammensetzung und verfahren zur chromatierung von metallen.
DE2739006C2 (fr)	1987-06-11
EP0154367A2 (fr)	1985-09-11	Procédé de phosphatation de métaux
EP0361375A1 (fr)	1990-04-04	Procédé de production de revêtements
DE3924984A1 (de)	1991-01-31	Verfahren zur passivierenden nachspuelung von phosphatschichten
DE3245411C2 (fr)	1988-03-31
EP0224065B1 (fr)	1989-01-18	Procédé pour obtenir des couches à base de chromate
DE3875459T2 (de)	1993-03-25	Verfahren zum phosphatieren von metalloberflaechen.
EP0486576B1 (fr)	1995-04-26	Procede pour la realisation de revetements de phosphate de zinc comportant du manganese sur de l'acier galvanise
EP0264811B1 (fr)	1991-06-26	Procédé d'obtention de revêtements de phosphate
EP0213590B1 (fr)	1991-07-17	Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages zinc-aluminium
DE3719312A1 (de)	1987-12-17	Verfahren zur erzeugung von chromatueberzuegen
EP0078866A1 (fr)	1983-05-18	Formation de revêtements sur des surfaces d'aluminium
EP0215041B1 (fr)	1988-08-17	Procede de phosphatation de surfaces metalliques