http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106903325-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F9-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F1-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-24 |
| filingDate | 2015-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106903325-B |
| titleOfInvention | Preparation method of silver-tin oxide electric contact material and electric contact material prepared by same |
| abstract | A silver-tin oxide electric contact material and a preparation method thereof comprise the following steps: respectively preparing a reducing agent solution, a silver ammonia solution and a sodium stannate solution with certain concentrations; mixing silver ammonia solution and sodium stannate solution according to a certain proportion to form mixed solution, dripping acetic acid into the mixed solution, and adjusting the pH value of the mixed solution to form the Ag-containing solution + Sn (OH) 4 A sol or solution; dropwise adding a reducing agent solution into Sn (OH) 4 Stirring at constant temperature or performing ultrasonic-assisted reaction in the sol or solution, standing, removing supernatant, cleaning, drying, cooling, and collecting to obtain powder; carrying out heat treatment on the powder in a non-reducing atmosphere to prepare Ag-SnO 2 And (3) composite powder. Thus, the particles of the composite powder can reach the nanometer level, the sintering performance is improved, and the problem of SnO in the traditional powder metallurgy process is solved 2 The method has the advantages of simple preparation process, low cost, easy control of preparation conditions, short synthesis period, good product performance and the like. |
| priorityDate | 2015-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.