EP0031103B1 - Verfahren zur Vorbehandlung von Metalloberflächen vor dem Phosphatieren - Google Patents
Verfahren zur Vorbehandlung von Metalloberflächen vor dem Phosphatieren Download PDFInfo
- Publication number
- EP0031103B1 EP0031103B1 EP80107866A EP80107866A EP0031103B1 EP 0031103 B1 EP0031103 B1 EP 0031103B1 EP 80107866 A EP80107866 A EP 80107866A EP 80107866 A EP80107866 A EP 80107866A EP 0031103 B1 EP0031103 B1 EP 0031103B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solutions
- treated
- cleaning
- phosphating
- alkali metal
- 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
- 238000000034 method Methods 0.000 title claims description 30
- 229910052751 metal Inorganic materials 0.000 title claims description 18
- 239000002184 metal Substances 0.000 title claims description 18
- 238000004140 cleaning Methods 0.000 claims description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910019142 PO4 Inorganic materials 0.000 claims description 17
- 235000021317 phosphate Nutrition 0.000 claims description 17
- 150000003013 phosphoric acid derivatives Chemical group 0.000 claims description 13
- 229910052783 alkali metal Inorganic materials 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000005238 degreasing Methods 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical group [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 6
- -1 alkali metal borates Chemical class 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 150000001340 alkali metals Chemical class 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 150000003863 ammonium salts Chemical class 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 229910001424 calcium ion Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000000536 complexating effect Effects 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000008235 industrial water Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 51
- 239000000203 mixture Substances 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 12
- 239000003599 detergent Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 235000019589 hardness Nutrition 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 239000008237 rinsing water Substances 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 150000007513 acids Chemical class 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
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 229910000398 iron phosphate Inorganic materials 0.000 description 3
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical class [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 2
- 239000000080 wetting agent Substances 0.000 description 2
- GDTSJMKGXGJFGQ-UHFFFAOYSA-N 3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B([O-])OB2OB([O-])OB1O2 GDTSJMKGXGJFGQ-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- 239000001226 triphosphate Substances 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
- C23C22/78—Pretreatment of the material to be coated
-
- 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
- C23C22/78—Pretreatment of the material to be coated
- C23C22/80—Pretreatment of the material to be coated with solutions containing titanium or zirconium compounds
Definitions
- the invention relates to an improved method for cleaning, degreasing and activating metal surfaces, in particular surfaces made of iron and steel and corresponding composite parts with aluminum and zinc, before a subsequent treatment thereof for the layer-forming phosphating.
- Such cleaning solutions generally contain surface-active substances, such as wetting agents and emulsifiers, and, to reinforce the emulsifying, saponification and dirt-carrying capacity, so-called builder substances, for example sodium hydroxide, alkali metal carbonates, alkali metal orthophosphates, corresponding condensed phosphates, such as sodium pyrophosphate or sodium triphosphate, and, if appropriate, also Silicates and borates.
- builder substances for example sodium hydroxide, alkali metal carbonates, alkali metal orthophosphates, corresponding condensed phosphates, such as sodium pyrophosphate or sodium triphosphate, and, if appropriate, also Silicates and borates.
- cleaning and degreasing solutions are often added to substances that have a layer-refining and activating effect, for example titanium phosphates.
- a characteristic feature of such solutions is their content of those builder substances which require free alkalinity in aqueous solution - that is to say whose alkalinity exceeds that of secondary orthophosphate - and a content of condensed phosphates.
- the pH of these cleaning solutions is in the range from 8.5 to 11.5.
- the cleaners described above have a number of serious disadvantages.
- the material to be treated usually passes through a rinsing zone following the cleaning zone and is then introduced into the phosphating zone.
- the material first comes into contact with the so-called pre-spray from the first spray ring in the phosphating zone.
- the rinsing water solution adhering to the metal surface - still contaminated with an alkaline cleaning solution - is washed off by the phosphating solution, while at the same time the formation of the phosphate layer begins.
- the object of the present invention is therefore to develop a method for pretreating metal surfaces before phosphating, in which the disadvantages of the cleaning solution described above, which have a negative effect on the subsequent phosphating, are avoided.
- the surfaces are treated with solutions which have a pH in the range from 6.5 to 8.0.
- the cleaning solutions to be used in the process according to the invention contain as builder components mainly alkali metal or ammonium salts of the primary and / or secondary orthophosphate, the content of primary or secondary phosphate primarily depending on the pH of the cleaning solution - within the scope of limits mentioned above - depends.
- the surfaces are treated with solutions whose pH is adjusted by adding phosphoric acid.
- alkali metal borates such as the diumtrium tetraborate
- alkali metal bicarbonates for example sodium hydrogen carbonate
- the metal surfaces are treated according to the invention with solutions which contain alkali metal borates and / or - at pH values of the solutions in the range from 7 to 8 - alkali metal hydrogen carbonates.
- the latter carbonates are expediently only used in neutral or weakly alkaline solutions, since acidic cleaning solutions would cause these active ingredients to decompose.
- Condensed phosphates for example tetrasodium pyrophosphate and / or pentasodium triphosphate, are used as builder substances according to the invention only to the extent that they are required to compensate for the water hardness of the process water used to prepare the cleaning solution.
- the cleaning solutions used for treating the metal surfaces do not contain any condensed phosphates.
- hydroxypolycarboxylic acid such as citric acid
- aminopolycarboxylic acids such as nitrilotriacetic acid or ethylenediaminetetraacetic acid
- phosphonic acids such as ethane-1-hydroxy-1,1-diphosphonic acid or aminotrimethylenephosphonic acid
- the metal surfaces are treated with cleaning solutions which contain other compounds which complex calcium ions.
- the cleaning solutions to be used according to the invention are customary anionic, cationic or nonionic wetting agents and emulsifiers.
- the nonionic types are preferably used, for example addition products of ethylene oxide with fatty alcohols, alkylphenols, fatty amines or polyoxypropylene glycols.
- the layer refiners and activators for example titanium phosphates, which are customary and known for this purpose, can also be added to the cleaning solutions.
- Such an activating agent is described in DE-AS-2038105, which can also be used for the purposes of the method according to the invention can preferably be used.
- This activating agent consists essentially of titanium salt, disodium orthophosphate and gelatin or alkali metal or ammonium salts of polyuronic acids.
- the cleaning solutions contain the usual components mentioned in the usual concentrations.
- the cleaning solutions described above are generally used in the process according to the invention in the manner known and customary for cleaning and degreasing processes. This means that the cleaning solutions can be applied to the metal surfaces to be treated both in a pointed or immersion and in a combined spray / immersion process.
- the temperature of the cleaning solution is usually in the range of about 40 to 70 ° C.
- the metal surfaces for which the method according to the invention can preferably be used include, in particular, those made of iron and steel and also composite parts of iron and steel with aluminum and / or zinc, as are frequently used, for example, in automobile body construction.
- the metal surfaces are generally rinsed after cleaning and then subjected to a layer-forming phosphating process - likewise in a known manner.
- Oiled iron sheet strips of the deep drawing grade ST 1405 were treated for 2 minutes under 1.5 bar spray pressure with a cleaning solution which had a temperature of 60 ° C. and contained 2.5 g / l of a cleaning agent mixture of the following composition:
- the pH of the cleaning solution was 7.4.
- the cleaned and degreased iron sheet strips were rinsed with an incorporated rinsing water containing 0.07 g / l of the detergent mixture, corresponding to 3 J / M 2 fresh water supply, and then moved into the phosphating zone at a throughput rate of 1 meter / minute.
- the iron sheet strips were phosphated by spraying on a phosphating solution for 3 minutes at an injection pressure of 0.8 bar and a bath temperature of 65 ° C., the solution containing 3 percent by weight of a concentrate of the following composition:
- the ratio of total acid to free acid in the phosphating solution was adjusted to a value of 10 by adding dilute sodium hydroxide solution and a nitrite concentration of 0.015% by weight was also maintained by adding sodium nitrite.
- the sheets were then rinsed thoroughly with deionized water, dried and then an optical assessment of the phosphating layer formed was carried out.
- the formation of the layer turned out to be perfectly good; that is, the layer was closed and even.
- Example 1 the procedure in the following examples was analogous to that in Example 1. These examples differ from Example 1 in the composition of the cleaning solution used and - as the attached comparative examples show - possibly in the formation of the phosphating layer.
- composition of the detergent mixture is a composition of the detergent mixture:
- pH value of the cleaning solution 7.8 Formation of the phosphating layer: perfect; extraordinarily even, closed and hard.
- composition of the detergent mixture pH value of the cleaning solution: 6.7
- Formation of the phosphating layer perfect; extraordinarily even, closed, closed and hard.
- composition of the detergent mixture nice:
- pH value of the cleaning solution 6.5
- Formation of the phosphating layer perfect; extraordinarily even, closed and hard.
- composition of the detergent mixture is a composition of the detergent mixture:
- pH value of the cleaning solution 9.0
- Formation of the phosphating layer inhomogeneous, torn open in an island shape, partly blue passivation layers (iron phosphate).
- composition of the detergent mixture is a composition of the detergent mixture:
- pH value of the cleaning solution 11.0 Formation of the phosphating layer: completely uneven and streaky, strong appearance of blue passivation layers (iron phosphate).
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2951600 | 1979-12-21 | ||
| DE19792951600 DE2951600A1 (de) | 1979-12-21 | 1979-12-21 | Verfahren zur vorbehandlung von metalloberflaechen vor dem phosphatieren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0031103A1 EP0031103A1 (de) | 1981-07-01 |
| EP0031103B1 true EP0031103B1 (de) | 1983-09-28 |
Family
ID=6089186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP80107866A Expired EP0031103B1 (de) | 1979-12-21 | 1980-12-12 | Verfahren zur Vorbehandlung von Metalloberflächen vor dem Phosphatieren |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4384900A (enrdf_load_html_response) |
| EP (1) | EP0031103B1 (enrdf_load_html_response) |
| JP (1) | JPS5693880A (enrdf_load_html_response) |
| AT (1) | AT372116B (enrdf_load_html_response) |
| BR (1) | BR8008327A (enrdf_load_html_response) |
| CA (1) | CA1151497A (enrdf_load_html_response) |
| DE (2) | DE2951600A1 (enrdf_load_html_response) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4496470A (en) * | 1981-01-12 | 1985-01-29 | The B. F. Goodrich Company | Cleaning composition |
| CA1187771A (en) * | 1981-06-10 | 1985-05-28 | Timothy J.M. Treharne | Corrosion inhibition in sintered stainless steel |
| DE3213649A1 (de) * | 1982-04-14 | 1983-10-27 | Gerhard Collardin GmbH, 5000 Köln | Verfahren zum reinigen und entfetten sowie aktivieren von metalloberflaechen |
| FR2572422B1 (fr) * | 1984-10-31 | 1993-03-05 | Produits Ind Cie Fse | Bain d'activation et d'affinage perfectionne pour procede de phosphatation au zinc et concentre correspondant |
| DE3541997A1 (de) * | 1985-11-28 | 1987-06-04 | Collardin Gmbh Gerhard | Verbessertes verfahren zur aktivierung von metalloberflaechen vor einer zinkphosphatierung |
| DE3814363A1 (de) * | 1988-04-28 | 1989-11-09 | Henkel Kgaa | Titanfreie aktivierungsmittel, verfahren zu ihrer herstellung und ihre verwendung zur aktivierung von metalloberflaechen vor einer zinkphosphatierung |
| DE3814287A1 (de) * | 1988-04-28 | 1989-11-09 | Henkel Kgaa | Polymere titanphosphate, verfahren zu ihrer herstellung und ihre verwendung zur aktivierung von metalloberflaechen vor einer zinkphosphatierung |
| US7503940B2 (en) * | 2003-02-20 | 2009-03-17 | Harris Research, Inc. | Method and system for spot-dyeing textiles |
| JP5451965B2 (ja) * | 2007-01-29 | 2014-03-26 | 株式会社神戸製鋼所 | アルミニウム合金用表面処理剤 |
| US20080283152A1 (en) * | 2007-05-17 | 2008-11-20 | Jeffrey Allen Greene | Rinse conditioner bath for treating a substrate and associated method |
| JP2009132993A (ja) * | 2007-11-02 | 2009-06-18 | Mazda Motor Corp | 脱脂前処理方法及びその装置 |
| CN114075663B (zh) * | 2020-08-21 | 2023-09-12 | 宝山钢铁股份有限公司 | 一种碳钢表面用水基处理剂、良耐蚀碳钢及其制备方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD3460A (enrdf_load_html_response) * | ||||
| US2329065A (en) * | 1942-03-06 | 1943-09-07 | Westinghouse Electric & Mfg Co | Corrosion resistant coating for metal surfaces |
| US2345307A (en) * | 1943-03-19 | 1944-03-28 | American Cyanamid Co | Detergent composition |
| NL62521C (enrdf_load_html_response) * | 1943-07-29 | |||
| GB743578A (en) * | 1952-05-19 | 1956-01-18 | Apv Co Ltd | Improvements in or relating to the cleaning of liquid treating or holding apparatus |
| US2874081A (en) * | 1956-08-02 | 1959-02-17 | Parker Rust Proof Co | Pretreatment solution for phosphate coating, method of preparing the same and process of treating metal surfaces |
| GB865497A (en) | 1958-10-03 | 1961-04-19 | Pyrene Co Ltd | Improvements relating to the cleaning and phosphate coating of metallic surfaces |
| DE1105250B (de) * | 1958-12-10 | 1961-04-20 | Hoechst Ag | Mittel fuer die gleichzeitige Reinigung, Entfettung und Beseitigung der Ziehmitteltraegerschicht von kaltgeformtem Edelstahl |
| US3255118A (en) * | 1961-12-29 | 1966-06-07 | Pennsalt Chemicals Corp | Aluminum cleaning compositions |
| SE366347B (enrdf_load_html_response) * | 1970-06-01 | 1974-04-22 | Collardin Gmbh Gerhard | |
| US3864139A (en) * | 1970-12-04 | 1975-02-04 | Amchem Prod | Pretreatment compositions and use thereof in treating metal surfaces |
| US3888783A (en) * | 1973-10-10 | 1975-06-10 | Amchem Prod | Cleaner for tin plated ferrous metal surfaces, comprising phosphate, silicate and borax |
| JPS6017831B2 (ja) * | 1976-12-30 | 1985-05-07 | アムケム プロダクツ インコ−ポレ−テツド | 金属表面清浄用組成物および清浄方法 |
| US4152176A (en) * | 1978-08-07 | 1979-05-01 | R. O. Hull & Company, Inc. | Method of preparing titanium-containing phosphate conditioner for metal surfaces |
-
1979
- 1979-12-21 DE DE19792951600 patent/DE2951600A1/de not_active Withdrawn
-
1980
- 1980-12-12 DE DE8080107866T patent/DE3065089D1/de not_active Expired
- 1980-12-12 EP EP80107866A patent/EP0031103B1/de not_active Expired
- 1980-12-18 JP JP17815180A patent/JPS5693880A/ja active Granted
- 1980-12-18 BR BR8008327A patent/BR8008327A/pt unknown
- 1980-12-19 CA CA000367202A patent/CA1151497A/en not_active Expired
- 1980-12-19 AT AT0620980A patent/AT372116B/de not_active IP Right Cessation
- 1980-12-22 US US06/219,245 patent/US4384900A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0031103A1 (de) | 1981-07-01 |
| US4384900A (en) | 1983-05-24 |
| ATA620980A (de) | 1983-01-15 |
| JPH028029B2 (enrdf_load_html_response) | 1990-02-22 |
| BR8008327A (pt) | 1981-07-07 |
| DE3065089D1 (en) | 1983-11-03 |
| DE2951600A1 (de) | 1981-07-02 |
| AT372116B (de) | 1983-09-12 |
| JPS5693880A (en) | 1981-07-29 |
| CA1151497A (en) | 1983-08-09 |
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