http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103454038-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01L19-00 |
| filingDate | 2013-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103454038-B |
| titleOfInvention | Diaphragm-seal pressure gauge pressure-transmittinoil oil with low expansion coefficient |
| abstract | The invention discloses a kind of Diaphragm-seal pressure gauge pressure-transmittinoil oil with low expansion coefficient, it is characterized in that: primarily of saturated nacl aqueous solution and 201 methyl-silicone oils composition, the volume ratio of described saturated nacl aqueous solution and 201 methyl-silicone oils is 17-18:3-2.The invention also discloses the preparation method of this pressure transmission oil, complete in accordance with the following steps: (1), saturated nacl aqueous solution and 201 methyl-silicone oils are contained in container according to the ratio of claim 1, be heated to 35-45 DEG C, stir 1.5-2.5h; (2), by above-mentioned solution undertaken vacuumizing process, the pumpdown time is 20-30h, stirs while vacuumizing.Pressure transmission oil formula of the present invention is simple, preparation method simple, and thermal expansion coefficients is little, substantially increases the precision of instrument. |
| priorityDate | 2013-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 13.