http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109439834-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21C1-105 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C33-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C33-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21C1-10 |
| filingDate | 2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109439834-B |
| titleOfInvention | Composite rare earth alterant for high-chromium cast iron and modification treatment process thereof |
| abstract | The invention relates to a composite rare earth alterant for high-chromium cast iron and a modification treatment process thereof, wherein the alterant comprises the following components, by weight, 2-4 parts of 3-8 type rare earth magnesium silicon nodulizer, 2-3.5 parts of 30 type rare earth silicon, 1-1.5 parts of potassium chloride and 2-3 parts of 60 ferrocolumbium alloy; the modification treatment process comprises the following steps of 1, weighing each component in the composite rare earth modifier according to a preset proportion; 2, adding 60 ferrocolumbium into the cast iron when the tapping temperature of the cast iron molten iron reaches 1580-1600 ℃; 3 adding 3-8 type rare earth magnesium silicon nodulizer, 60 niobium-iron alloy, 30 type rare earth silicon and potassium chloride in the casting ladle in sequence; 4 when the temperature of the molten iron in the step 2 is between 1420 ℃ and 1500 ℃, pouring the molten iron into the casting ladle. The modifier and modification process can promote the carbide to be uniformly distributed, so that the crack propagation path is blocked during brittle fracture, and the impact toughness is improved. |
| priorityDate | 2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.