| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a35ab3b7485cc2284b2d82a35d20521
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02f9db0e6deb583da7c9a19c1cf01cf7 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D1-773
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C8-22 |
| filingDate |
2002-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd4eba2d718bdd08ccaacf4033ba068d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae14831a1019287f5862b9bca9852bd1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bcaa824387819db29871b0c6cf8d4246
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b60372123049eaa5d7883c7b3896f9c2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d07af79df501a963dd46eac462425edb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2328296169e8657446cd96cacb8ef10c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac54ed2e8b40bf9c8f75820c6965d0ea |
| publicationDate |
2004-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2004115893-A |
| titleOfInvention |
Vacuum carburizing method |
| abstract |
An object of the present invention is to provide a vacuum carburizing method capable of reducing or removing cementite at a corner of a work while shortening a production time. A carburizing gas is introduced into a furnace maintained at a reduced pressure atmosphere and a high temperature equal to or higher than a carburizable temperature to perform a carburizing process on a work in the furnace. Thereafter, the inside of the furnace is evacuated and heated in a reduced-pressure atmosphere to perform a diffusion process on the work in the furnace. At least at the initial stage of the diffusion treatment, a decarburizing gas is introduced into the furnace to perform a decarburization treatment on a surface layer of the work in the furnace to reduce or remove cementite in the surface layer of the work. [Selection diagram] FIG. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8152935-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114293138-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006028541-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1905862-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102008012594-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8465598-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8741061-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009235443-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1757711-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111020460-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102008012594-B4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4655528-B2 |
| priorityDate |
2002-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |