http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110653331-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22C1-167 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22C1-16 |
| filingDate | 2019-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110653331-B |
| titleOfInvention | Preparation method of molding sand binder for casting |
| abstract | The invention discloses a preparation method of a molding sand binder for casting, which is prepared from the following raw materials in parts by weight: 70-90 parts of water glass, 3-5 parts of modified starch, 2-8 parts of aluminum tripolyphosphate, 0.5-2 parts of sodium tetraborate, 1-2 parts of bentonite, 2-4 parts of vinyl phenolic resin, 2-4 parts of methyl silicone oil and 0.3-0.6 part of coupling agent. The invention determines the optimal formula through scientific material selection and repeated tests, and adds modified starch, aluminum tripolyphosphate, sodium tetraborate, bentonite, vinyl phenolic resin and methyl silicone oil into water glass for modification, thereby realizing synergistic interaction, greatly improving the bonding strength and the aging resistance, and remarkably improving the collapsibility and the moisture absorption resistance of the molding sand. |
| priorityDate | 2019-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.