http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1478546-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2b6b2437a8e5795026807426d5a4b72 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C24-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-14783 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C24-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-147 |
| filingDate | 1974-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1478546-A |
| titleOfInvention | Method of providing articles of silicon steel with an electrically insulating protective coating |
| abstract | 1478546 Treating silicon steel surfaces ASEA A.B. 31 Oct 1974 [1 Nov 1973] 47145/74 Heading C7U An article of silicon steel bearing an electrically insulating silicate coating is treated with an aqueous solution containing phosphate ions and complex metal-ammonia ions. A Si steel sheet has applied to it particles of oxide, hydroxide or carbonate of an alkaline earth metal, preferably Mg, and is heated to at least 850‹C, e.g. 1000-1350‹C, in N 2 , H 2 , or other inert or reducing gas to give a silicate coating of thickness up to 10Á; excess particles are then brushed off. The phosphate solution preferably contains H 2 PO 4 -ions, has pH at least 9, and contains complex ions such as Cu(NH 3 ) 4 <SP>++</SP> or Cr(NH 3 ) 6 <SP>+++</SP>; it may also contain colloidal Si O 2 or mica powder as filler, a sulphate nitrate or acetate, and the coating thickness is 0À1-20Á. Phosphating may be followed by heating to at least 550 C in air, or oxidizing or reducing gas, for ¢-10 minutes. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5061314-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4881975-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5482746-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2201157-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2201157-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5061315-A |
| priorityDate | 1973-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.