| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c292bd2fe75e2a25d25ac5a1591de9b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D5-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C33-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C37-10 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D5-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C37-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C33-08 |
| filingDate |
1997-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f5ee523039de6eb45ccc62217f493ab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19c15b9cde445abaac9c8c69574f76e3 |
| publicationDate |
2000-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6024804-A |
| titleOfInvention |
Method of preparing high nodule malleable iron and its named product |
| abstract |
The invention is a malleable iron comprising about 250 to 400 nodules of graphite per square millimeter as observed in a photomicrograph at 100×, and a Brinell hardness of about 195 to 550 BHN. Preferably, the malleable iron further comprises sulfur and manganese wherein the manganese is present in an excess amount of at least 2 times the amount of sulfur plus 0.15% and is formed by two separate quenching steps. The invention further comprises a method of preparing a malleable iron having a high nodule count comprising the steps of prenucleating a malleable iron casting at a temperature of about 600 to 900° F. for about 3 to 6 hours; austenitizing the prenucleated casting at about 1680 to 1740° F. for about 3 to 9 hours to form graphite nodules such that the malleable iron has about 250 to 400 nodules per mm 2 ; and quenching the casting to form pearlite and a malleable iron made by this process. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102014107897-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9561562-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115109899-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10543528-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015232151-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-032732-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2013202962-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013116183-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10730104-B2 |
| priorityDate |
1997-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |