http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109455940-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C8-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C8-24 |
| filingDate | 2019-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109455940-B |
| titleOfInvention | A kind of soft lead-free low temperature sealing glass and preparation method thereof |
| abstract | The invention discloses a soft lead-free low-temperature sealing glass and a preparation method thereof. Its components are calculated in weight percentage as follows: phosphorus pentoxide 40-65%, silicon dioxide 0.1-5%, zinc oxide 20-40% %, sodium oxide 3-13%, potassium oxide 3-13%, aluminum oxide 1-15%, ceria 1-5%, colorant 0-3% (such as chromium oxide, iron oxide, etc.), the above components The sum of the weight percentages is 100%. Among them, the mass ratio of sodium oxide and potassium oxide is 1:1. The low-temperature sealing glass prepared by the invention is a soft glass with a thermal expansion coefficient of 12-16× 10-6 /°C, and the sealing temperature is only 450-550°C, which is suitable for aluminum alloy sealing with extremely low working temperature. Because of its softness and high wettability, the thermal expansion coefficient is between Kovar alloy and aluminum alloy, which can well match the sealing between Kovar alloy and aluminum alloy. |
| priorityDate | 2019-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.