http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19544614-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ce7bde1bc2d14324c60b4b689690280 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-182 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-17 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-17 |
| filingDate | 1995-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3a149ce45a98e179d2a8c18fc9e777e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0311f4c35bb8e0de8623ecb3d8ee4140 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebbc8a05da991c0ef399dc4526358d1a |
| publicationDate | 1997-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-19544614-A1 |
| titleOfInvention | Process for phosphating metal surfaces |
| abstract | The invention concerns a method of phosphating metal surfaces consisting at least partially of iron or steel using low-zinc technology, in which the metal surfaces are brought into contact with aqueous acidic phosphating solutions at between 30 and 65 DEG C for between 1 and 8 minutes. The phosphating solutions contain: between 0.4 and 2.0 g/l Zn; between 7 and 25 g/l P2O5; between 0.005 and 0.5 g/l peroxide (calculated as H2O2); and between 0.01 and 10 g/l formiate (calculated as formiate ion). The phosphating solutions are free from chlorate and added nitrite, the weight ratio of free P2O5 to total P2O5 therein is set at a value of between 0.03 and 0.20, and the amount of free acid is set at a value of between 0.5 and 2.5. Additionally, the phosphating solutions can contain up to 30 g/l nitrate and manganese, magnesium, calcium, lithium, tungstate, vanadate, molybdate or combinations thereof, optionally also nickel and/or cobalt each in amounts of up to 3 g/l, and optionally also up to 0.030 g/l copper. The weight ratios of Mn : Zn, Mg : Zn, Ca : Zn and optionally of Ni and/or Co : Zn should be at most 2 : 1 in each case. The method is suitable in particular for preparing metal surfaces for subsequent electrophoretic enamelling, in particular cathodic electrophoretic enamelling. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9948819-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10006338-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10006338-A1 |
| priorityDate | 1995-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.