EP0060716B1 - Phosphating metal surfaces - Google Patents
Phosphating metal surfaces Download PDFInfo
- Publication number
- EP0060716B1 EP0060716B1 EP82301330A EP82301330A EP0060716B1 EP 0060716 B1 EP0060716 B1 EP 0060716B1 EP 82301330 A EP82301330 A EP 82301330A EP 82301330 A EP82301330 A EP 82301330A EP 0060716 B1 EP0060716 B1 EP 0060716B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zinc
- ion
- process according
- iron
- phosphate
- 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.)
- Expired
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
- 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
- C23C22/73—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 characterised by the process
-
- 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
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
-
- 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
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
- C23C22/184—Orthophosphates containing manganese cations containing also zinc cations containing also nickel cations
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Laminated Bodies (AREA)
- Chemically Coating (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Glass Compositions (AREA)
- Secondary Cells (AREA)
Abstract
Description
- This invention relates to a process for phosphating metal surfaces, and to a composition suitable for use in that process.
- Japanese Patent Publication (unexamined) No. 107784/1980 (Nippon Paint Co. Ltd.) concerns a method of phosphating iron-based metal surfaces which is particularly suitable for treating manufactured products having complicated surfaces, such as automobile bodies. The method is in use commercially in the automotive industry for pretreating automobile bodies prior to cationic electrocoating, which is a coating process now used extensively in this industry. The phosphating method is carried out by first subjecting the metal surface to a dipping treatment with an acidic aqueous solution containing 0.5 to 1.5 g/I of zinc ion, 5 to 30 g/I of phosphate ion, and 0.01 to 0.2 g/I of nitrite ion and/or 0.05 to 2 g/I of m-nitrobenzenesulfonate ion at a bath temperature of 40 to 70°C for 15 seconds or more, followed by spraying with the above solution for 2 seconds or more.
- Recently, in the automotive industry, with the aim of improving corrosion-resistance after the application of a siccative coating, steel components which are plated on one surface only with zinc or a zinc alloy have come to be used as materials for automobile bodies. When the process of the above Japanese Patent Publication is applied to such materials (i.e. to metal components having both iron-based metal surfaces and zinc-based metal surfaces), the iron-based surfaces are provided with a phosphate coating film having a low film thickness with uniform and dense cubic crystals, as well as excellent adhesion and corrosion-resistance. Such phosphate coating on the iron-based surface is suitable as a substrate for cationic electrocoating. However, in the case of the phosphate coating film formed on the zinc-based surfaces, the resistance to salt water spraying after the application of a cationic electrocoat thereto is insufficient, and secondary adhesion (tested by immersion of the surface bearing the film with cross-hatched scratches in warm water) after the sequence cationic electrocoating-intermediate coating-top coating is greatly inferior to that on the iron-based surfaces.
- In addition to the Japanese Patent Publication, the following references disclose phosphating compositions for metal surfaces:
- European Specification EP-A-0018841 discloses a coating composition for forming a zinc phosphate coating on a metal surface, which composition comprises an acidic, aqueous solution containing as essential ingredients about 0.4 to about 1 g/I of zinc, about 5 to about 40 g/I of phosphate, and about 0.01 to about 0.2 g/I of nitrite. The specification refers to optional ingredients. It states that when chlorate is employed, its concentration may range from about 2 to about 5 g/I. It states also that it is preferred that its composition contain, in addition to the zinc, phosphate, nitrite and chlorate, one or more of nickel, cobalt, calcium and manganese, and that the concentration of one or a combination of these non-essential ions may be at least about 0.2 g/I, preferably from about 0.2 to about 2 g/I.
- U.S. Patent 3,338,755 (Jenkins et a/.) discloses a process for phosphating metal surfaces with a phosphating solution containing zinc, manganese, phosphate, nitrate, and nitrite, as essential ingredients, in stated proportions.
- German Patent 29 31 693 (Fosfa-Col) discloses a phosphating process using a solution containing zinc, manganese, phosphate, nitrate, and chlorate ions in stated gram-atom relationships.
- The present invention provides an improved phosphating method for metal surfaces, which is particularly suitable for treating metal surfaces, such as those of car bodies, which have both iron-based surfaces and zinc-based surfaces. The method is especially advantageous for forming phosphate coating films suitable for electrocoating particularly cationic electrocoating.
- Accordingly, the invention provides a process for phosphating an iron- or zinc-based metal surface comprising subjecting the metal surface to a dipping treatment in an acidic aqueous solution which contains:
- (a) from 0.5 to 1.5 g/I, preferably 0.7 to 1.2 g/I, of zinc ion;
- (b) from 5 to 30 g/I, preferably 10 to 20 g/I, of phosphate ion;
- (c) from 0.01 to 0.2 g/I, preferably 0.04 to 0.15 g/I, of nitrite ion as conversion coating accelerator;
- (d) from 0.05 to 2 g/I, preferably from 0.05 to 1.5 g/I and especially from 0.2 to 1.5 g/I, of chlorate ion; and
- (e) from 0.6 to 3 g/I, preferably 0.8 to 2 g/I, of manganese ion.
- The invention also provides this solution as an acidic aqueous composition for phosphating an iron- or zinc-based metal surface.
- As optional additional conversion coating accelerator there can be employed one or both of:
- (i) from 0.05 to 2 g/I, preferably 0.1 to 1.5 g/I, of m-nitrobenzenesulfonate ion; and
- (ii) from 0.5 to 5 g/I, preferably 1 to 4 g/I, of hydrogen peroxide (based on 100% H202).
- Optionally too, the acidic aqueous solution may also contain one or more of the following:
- (f) from 0.1 to 4 g/I, preferably 0.3 to 2 g/I, of nickel ion; and
- (g) from 1 to 10 g/I, preferably 2 to 8 g/I, of nitrate ion.
- Following the phosphating treatment, the metal surface can then be coated with a siccative coating, for example by a known electrocoating process, preferably by the cationic electrocoating process.
- The term "iron- or zinc-based metal surface" as used herein means iron-based surfaces, iron alloy-based surfaces, zinc-based surfaces, and zinc alloy-based surfaces. Zinc- and zinc alloy-based surfaces include, for example, zinc plated steel plate formed by hot dipping, alloyed zinc plated steel plate formed by hot dipping, zinc plated steel plate formed by electroplating and alloyed zinc plated steel plate formed by electroplating.
- An important advantage of the present invention is that surfaces of metal components, such as car bodies, that contain both iron-based surfaces and zinc-based surfaces can be treated by the process of the invention with excellent results. In fact, the process of the invention produces better conversion coatings than are obtainable with conventional dip treating processes, and the amount of etching of the metal surfaces during the present process is only 2/3 to 4/5 that of conventional processes, so that both the quantity of chemicals used in the process as well as sludge formation is only from 2/3 to 4/5 that of conventional processes. The present process is equally applicable to the treatment of a single metal surface of a type described above.
- A particularly useful method of carrying out the present process is first to degrease the metal surface to be phosphated for example by spraying and/or dipping the metal surface in a known alkaline degreasing agent at 50°60°C for two minutes; washing the metal surface with tap water; spraying and/or dip treating the metal surface with a known surface conditioner at room temperature for 10-30 seconds; dipping the surface into the present acidic aqueous solution at 40°70°C for at least 15 seconds; and washing the metal surface with tap water followed by deionized water.
- The present acidic aqueous solution has a zinc ion concentration within the range of 0.5 to 1.5 g/l. When the amount of zinc ion is less than about 0.5 g/l, an even phosphate film is not formed on an iron-based surface, and a partially blue-coloured film is formed. When the amount of zinc ion exceeds about 1.5 g/I, then though an even phosphate film is formed, the film that forms on an iron-based surface tends to be in the form of leaf-like crystals, such as those formed in the spray process, which are unsuitable as a substrate for cationic electrocoating.
- When the amount of phosphate ion in the solutions is less than about 5 g/I, an uneven film results. When the amount of phosphate ion exceeds about 30 g/l, no further improvement in the phosphate film is realized and hence, while not harmful, use of phosphate ion above about 30 g/I is uneconomical.
- When the amount of manganese ion is less than about 0.6 g/I, the manganese content in the film formed on the zinc-based surface is insufficient, resulting in inadequate adhesivity of the coating film to the phosphate substrate after cationic electrocoating. When the amount of manganese ion exceeds about 3 g/I, no further improvement in the phosphate coating is realized, and hence it is uneconomical to use amounts in excess of about 3 g/I.
- When the amount of nitrite ion is less than 0.01 g/I, the conversion coating on iron-based surfaces is inadequate, forming yellow rust, etc.
- When the amount of nitrite ion exceeds 0.2 g/I, a blue-coloured uneven film is formed on the iron-based surface.
- As an example of a source of zinc ions for use in the practice of the invention, one or more of the following can be employed: zinc oxide, zinc carbonate, and zinc nitrate.
- As an example of a source of phosphate ions, one or more of the following can be used: sodium phosphate, zinc phosphate, and manganese phosphate.
- As an example of a source of manganese ions, one or more of the following can be employed: manganese carbonate, manganese nitrate, manganese chloride, and manganese phosphate.
- As an example of a source of nitrite ions, one or more of the following can be employed: sodium nitrite and ammonium nitrite.
- As examples of sources of chlorate ions: chloric acid, sodium chlorate or ammonium chlorate can be used.
- As an example of a source of optional additional conversion coating accelerators, one or both of the following can be employed: sodium m-nitrobenzenesulfonate, and hydrogen peroxide.
- With respect to the other optional additional ingredients specified above, the addition of the nickel ion results in further improvement in the performance of the phosphate conversion coating, so that the adhesion and the corrosion-resistance of the film produced by cationic electrocoating are also further improved.
- As examples of sources of the optional ingredients, nickel carbonate, nickel nitrate, nickel chloride or nickel phosphate can be used for nickel ions; and sodium nitrate, ammonium nitrate, zinc nitrate, manganese nitrate or nickel nitrate for nitrate ions.
- The present process is usually carried out at a temperature in the range of 40° to 70°C, preferably 45° to 60°C. When temperatures below about 40°C are employed, the conversion coating deteriorates, and long periods of treatment time are required to obtain a satisfactory coating. When the temperature is higher than about 70°C, the conversion coating accelerators begin to decompose at an unacceptable rate, changing the composition of the bath and resulting in an unacceptable conversion coating. Also, precipitates, begin to form in the bath.
- The duration that the metal surface contacts the solution in the dip treatment is usually at least 15 seconds, and preferably is from 30 to 120 seconds. When treatment times shorter than about 15 seconds are employed, an adequate phosphate film is not formed. In treating metal components having complicated surface profiles, such as car bodies have, the components can advantageously be subjected first to dipping treatments for 15 seconds or more, preferably 30 to 90 seconds, and then to spray treatment with the solution for 2 seconds or more, preferably for 5 to 45 seconds. In order to wash out the sludge which adheres during dipping, the spray treatment is preferably carried out for as long a period within the above range as the speed of the production line will permit. Accordingly, the dipping treatment according to the present invention includes the combination of dipping followed by spraying.
- The invention is illustrated by the following Examples.
- Examples I to VII are Examples of the process and compositions of the invention. Examples VIII to XIII are Examples given for comparison purposes.
- The treating process used, which is common to all the Examples, is given below, with the aqueous coating compositions of each Example being set forth in Table I, while the metal treated and the test results obtained following the phosphate treatment are set forth in Table 2.
- Samples of all four of the metal surfaces specified in Table 2 were treated simultaneously according to the following procedure:
- (a) degreasing, using an alkaline degreasing agent (Nippon Paint Co., "Ridoline SD200", 2% by weight) which was sprayed on the metal surfaces at 60°C for 1 minute, followed by dipping in the solution for 2 minutes;
- (b) the metal surfaces were then washed with tap water at room temperature for 15 seconds;
- (c) the metal surfaces were next dipped into a surface conditioner (Nippon Paint Co., "Fixodine 5N5", 0.1% by weight) at room temperature for 15 seconds;
- (d) the metal surfaces were then dipped into the acidic aqueous solution specified in Table 1 at 52°C for 120 seconds;
- (e) the metal surfaces were washed with tap water at room temperature for 15 seconds;
- (f) the metal surfaces were then dipped into deionized water at room temperature for 15 seconds;
- (g) the surfaces were then dried in hot air at 100°C for 10 minutes. At this state the appearance and film weight of the treated metal surfaces was determined, with the results set forth in Table 2; and
- (h) a cationic electrocoating material (Nippon Paint Co., "Power Top U-30 Dark Gray") was coated to 20 Il thickness onto the treated metal surfaces (voltage 180V, treatment time 3 minutes), followed by baking at 180°C for 30 minutes. One sample of each electrocoated plate so obtained was subjected to the brine spray test.
- A second sample of each electrocoated plate so obtained was coated with an intermediate coating material (Nippon Paint Co., "ORGA T0778 Gray") to 30 p thickness, followed by baking at 140°C for 20 minutes, and a top coating material (Nippon Paint Co., "ORGA T0626 Margaret White") in 40 µ thickness was then applied, followed by baking as above. Accordingly, coated plates with a total of 3 coatings and 3 bakings were obtained. All the thus coated plates were subjected to the adhesion test, and the thus coated cold rolled steel plate also to the spot rusting test.
- The testing procedures referred to above are described below:
- Cross-cuts were made on an electrocoated plate; 5% brine was sprayed thereon for 500 hours (zinc plated steel plate) or 1000 hours (cold rolled steel plate).
- After dipping a coated plate in deionized water at 50°C for 10 days, grids (100 squares) were made at 1 mm intervals or at 2 mm intervals using a sharp cutter; an adhesive tape was attached to each surface; and the number of squares of coating film that remained on the plate after the removal of the adhesive tape were counted.
- A coated plate was set at a 15 degree angle to the horizontal plane, and an arrow with a cone shaped head with a 90 degree vertical angle, made of alloyed steel (material quality, JIS-G-4404, hardness Hv 700 or higher), weighing 1.00 g and 14.0 mm in total length was dropped repeatedly from a distance of 150 cm, until 25 scratches were made on the coated surface. Subsequently, the coated plate was subjected to 4 cycles of testing, each cycle consisting of first the brine spray test (JIS-Z-2871, 24 hours), second, a moisture test (temperature of 40°C, relative humidity 85%, 120 hours), and third, standing at room temperature (24 hours). After testing, the average value (mm) of the largest diameter of rust spots and blisters was obtained, with the results shown in Table 2.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82301330T ATE33684T1 (en) | 1981-03-16 | 1982-03-16 | PHOSPHATION OF METAL SURFACES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56038411A JPS57152472A (en) | 1981-03-16 | 1981-03-16 | Phosphating method for metallic surface for cation type electrodeposition painting |
JP38411/81 | 1981-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0060716A1 EP0060716A1 (en) | 1982-09-22 |
EP0060716B1 true EP0060716B1 (en) | 1988-04-20 |
Family
ID=12524551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82301330A Expired EP0060716B1 (en) | 1981-03-16 | 1982-03-16 | Phosphating metal surfaces |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0060716B1 (en) |
JP (1) | JPS57152472A (en) |
AT (1) | ATE33684T1 (en) |
AU (1) | AU554406B2 (en) |
BR (1) | BR8201400A (en) |
CA (1) | CA1200739A (en) |
CS (1) | CS179582A2 (en) |
DE (1) | DE3278367D1 (en) |
ES (1) | ES510472A0 (en) |
MX (2) | MX172180B (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138844A (en) * | 1983-04-26 | 1984-10-31 | Pyrene Chemical Services Ltd | Formation of phosphate coatings on zinc and iron surfaces |
EP0135622A1 (en) * | 1983-08-22 | 1985-04-03 | Nippon Paint Co., Ltd. | Phosphating metal surfaces |
GB2148951A (en) * | 1983-11-02 | 1985-06-05 | Pyrene Chemical Services Ltd | Phosphating processes and compositions |
EP0172806A1 (en) * | 1984-01-06 | 1986-03-05 | Ford Motor Company | Alkaline resistance phosphate conversion coatings |
EP0213567A1 (en) * | 1985-08-26 | 1987-03-11 | HENKEL CORPORATION (a Delaware corp.) | Process for applying phosphate coatings |
EP0219779A2 (en) * | 1985-10-18 | 1987-04-29 | Gerhard Collardin GmbH | Phosphatizing process for electrolytically galvanized metal objects |
US4941930A (en) * | 1986-09-26 | 1990-07-17 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
EP0385806A1 (en) * | 1989-03-02 | 1990-09-05 | Nippon Paint Co., Ltd. | Phosphate coatings for metal surfaces |
WO1990012901A1 (en) * | 1989-04-21 | 1990-11-01 | Henkel Kommanditgesellschaft Auf Aktien | Process not using chlorate or nitrite for the production of nickel and manganese-containing zinc phosphate films |
WO1991002829A2 (en) * | 1989-08-17 | 1991-03-07 | Henkel Kommanditgesellschaft Auf Aktien | Process for producing manganese-containing zinc phosphate coatings on galvanized steel |
AU624433B2 (en) * | 1986-09-26 | 1992-06-11 | Ppg Industries Ohio, Inc. | Concentrated coating compositions |
US5211769A (en) * | 1989-12-19 | 1993-05-18 | Nippon Paint Co., Ltd. | Method for phosphating metal surface with zinc phosphate |
US5238506A (en) * | 1986-09-26 | 1993-08-24 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating |
US5244512A (en) * | 1991-05-18 | 1993-09-14 | Nippon Paint Co., Ltd. | Method for treating metal surface with zinc phosphate |
US5268041A (en) * | 1990-04-27 | 1993-12-07 | Metallgesellschaft Ag | Process for phosphating metal surfaces |
EP1012355A1 (en) * | 1996-12-04 | 2000-06-28 | Henkel Corporation | Sludge reducing zinc phosphating process and composition |
US6447662B1 (en) | 1998-08-01 | 2002-09-10 | Henkel Kommanditgesellschaft Auf Aktien | Process for phosphatizing, rerinsing and cathodic electro-dipcoating |
US6620263B1 (en) | 1999-11-04 | 2003-09-16 | Henkel Kommanditgesellschaft Auf Aktien | Zinc phosphating process and composition with reduced pollution potential |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5935681A (en) * | 1982-08-24 | 1984-02-27 | Nippon Paint Co Ltd | Method for phosphating metallic surface for coating by cationic electrodeposition |
ATE160592T1 (en) | 1985-08-27 | 1997-12-15 | Henkel Corp | METHOD FOR PHOSPHATING METAL SURFACES |
US4793867A (en) * | 1986-09-26 | 1988-12-27 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
JPS63227786A (en) * | 1987-03-16 | 1988-09-22 | Nippon Parkerizing Co Ltd | Phosphating method for pretreating steel sheet before coating by electrodeposition |
JPH07100870B2 (en) * | 1990-04-24 | 1995-11-01 | 日本ペイント株式会社 | Method for treating zinc phosphate coating on metal surface |
US5328526A (en) * | 1992-04-03 | 1994-07-12 | Nippon Paint Co., Ltd. | Method for zinc-phosphating metal surface |
CA2171180A1 (en) * | 1993-09-06 | 1995-03-16 | Wolf-Achim Roland | Nickel-free phosphating process |
DE19511573A1 (en) * | 1995-03-29 | 1996-10-02 | Henkel Kgaa | Process for phosphating with metal-containing rinsing |
WO2005051639A1 (en) | 2003-11-28 | 2005-06-09 | Bridgestone Corporation | Support body for run-flat tire and method of manufacturing the same |
JP6075167B2 (en) * | 2012-04-18 | 2017-02-08 | Jfeスチール株式会社 | Method for improving corrosion resistance after painting welded portion of automobile underbody member, automobile underbody member, and manufacturing method of automobile underbody member |
US10024322B2 (en) | 2012-08-23 | 2018-07-17 | Pierburg Pump Technology Gmbh | Mechanical combustion-engine-driven fluid pump with a magneto-rheological multi-disk clutch |
WO2014029445A1 (en) | 2012-08-23 | 2014-02-27 | Pierburg Pump Technology Gmbh | Mechanical combustion-engine-driven fluid pump |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0018841A1 (en) * | 1979-05-02 | 1980-11-12 | Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America | Composition and process for zinc-phosphate coating a metal surface, coated metal surface and a process for painting the coated surface |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS506418B1 (en) * | 1971-07-06 | 1975-03-13 | ||
JPS5811513B2 (en) * | 1979-02-13 | 1983-03-03 | 日本ペイント株式会社 | How to protect metal surfaces |
GB2072225B (en) * | 1980-03-21 | 1983-11-02 | Pyrene Chemical Services Ltd | Process and composition for coating metal surfaces |
-
1981
- 1981-03-16 JP JP56038411A patent/JPS57152472A/en active Granted
-
1982
- 1982-03-15 MX MX011955A patent/MX172180B/en unknown
- 1982-03-15 MX MX191815A patent/MX156539A/en unknown
- 1982-03-15 BR BR8201400A patent/BR8201400A/en not_active IP Right Cessation
- 1982-03-15 AU AU81507/82A patent/AU554406B2/en not_active Expired
- 1982-03-15 CA CA000398352A patent/CA1200739A/en not_active Expired
- 1982-03-16 AT AT82301330T patent/ATE33684T1/en not_active IP Right Cessation
- 1982-03-16 DE DE8282301330T patent/DE3278367D1/en not_active Expired
- 1982-03-16 ES ES510472A patent/ES510472A0/en active Granted
- 1982-03-16 CS CS821795A patent/CS179582A2/en unknown
- 1982-03-16 EP EP82301330A patent/EP0060716B1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0018841A1 (en) * | 1979-05-02 | 1980-11-12 | Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America | Composition and process for zinc-phosphate coating a metal surface, coated metal surface and a process for painting the coated surface |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138844A (en) * | 1983-04-26 | 1984-10-31 | Pyrene Chemical Services Ltd | Formation of phosphate coatings on zinc and iron surfaces |
EP0135622A1 (en) * | 1983-08-22 | 1985-04-03 | Nippon Paint Co., Ltd. | Phosphating metal surfaces |
GB2148951A (en) * | 1983-11-02 | 1985-06-05 | Pyrene Chemical Services Ltd | Phosphating processes and compositions |
EP0172806A1 (en) * | 1984-01-06 | 1986-03-05 | Ford Motor Company | Alkaline resistance phosphate conversion coatings |
EP0172806A4 (en) * | 1984-01-06 | 1986-05-16 | Ford Motor Co | Alkaline resistance phosphate conversion coatings. |
AU594685B2 (en) * | 1985-08-26 | 1990-03-15 | Parker Chemical Company | Method of forming phosphate coatings on zinc |
EP0213567A1 (en) * | 1985-08-26 | 1987-03-11 | HENKEL CORPORATION (a Delaware corp.) | Process for applying phosphate coatings |
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EP0219779A3 (en) * | 1985-10-18 | 1988-12-21 | Gerhard Collardin Gmbh | Phosphatizing process for electrolytically galvanized metal objects |
AU624433B2 (en) * | 1986-09-26 | 1992-06-11 | Ppg Industries Ohio, Inc. | Concentrated coating compositions |
US4941930A (en) * | 1986-09-26 | 1990-07-17 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
US5238506A (en) * | 1986-09-26 | 1993-08-24 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating |
EP0385806A1 (en) * | 1989-03-02 | 1990-09-05 | Nippon Paint Co., Ltd. | Phosphate coatings for metal surfaces |
WO1990012901A1 (en) * | 1989-04-21 | 1990-11-01 | Henkel Kommanditgesellschaft Auf Aktien | Process not using chlorate or nitrite for the production of nickel and manganese-containing zinc phosphate films |
WO1991002829A3 (en) * | 1989-08-17 | 1991-04-04 | Henkel Kgaa | Process for producing manganese-containing zinc phosphate coatings on galvanized steel |
WO1991002829A2 (en) * | 1989-08-17 | 1991-03-07 | Henkel Kommanditgesellschaft Auf Aktien | Process for producing manganese-containing zinc phosphate coatings on galvanized steel |
US5211769A (en) * | 1989-12-19 | 1993-05-18 | Nippon Paint Co., Ltd. | Method for phosphating metal surface with zinc phosphate |
US5399208A (en) * | 1989-12-19 | 1995-03-21 | Nippon Paint Co., Ltd. | Method for phosphating metal surface with zinc phosphate |
US5268041A (en) * | 1990-04-27 | 1993-12-07 | Metallgesellschaft Ag | Process for phosphating metal surfaces |
US5244512A (en) * | 1991-05-18 | 1993-09-14 | Nippon Paint Co., Ltd. | Method for treating metal surface with zinc phosphate |
EP1012355A1 (en) * | 1996-12-04 | 2000-06-28 | Henkel Corporation | Sludge reducing zinc phosphating process and composition |
US6447662B1 (en) | 1998-08-01 | 2002-09-10 | Henkel Kommanditgesellschaft Auf Aktien | Process for phosphatizing, rerinsing and cathodic electro-dipcoating |
US6620263B1 (en) | 1999-11-04 | 2003-09-16 | Henkel Kommanditgesellschaft Auf Aktien | Zinc phosphating process and composition with reduced pollution potential |
Also Published As
Publication number | Publication date |
---|---|
AU554406B2 (en) | 1986-08-21 |
CS179582A2 (en) | 1984-06-18 |
ES8302127A1 (en) | 1983-02-01 |
MX156539A (en) | 1988-09-08 |
AU8150782A (en) | 1982-09-23 |
JPS57152472A (en) | 1982-09-20 |
JPH0137478B2 (en) | 1989-08-07 |
DE3278367D1 (en) | 1988-05-26 |
EP0060716A1 (en) | 1982-09-22 |
ATE33684T1 (en) | 1988-05-15 |
BR8201400A (en) | 1983-02-01 |
CA1200739A (en) | 1986-02-18 |
MX172180B (en) | 1993-12-07 |
ES510472A0 (en) | 1983-02-01 |
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