| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B9-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B9-028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D1-06 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C8-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C8-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C8-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D9-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D1-76 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C8-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F27B9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D9-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00 |
| filingDate |
2017-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109312444-B |
| titleOfInvention |
Continuous nitriding furnace and continuous nitriding method |
| abstract |
A nitriding chamber, a heater, a 1 st nitriding zone and a 2 nd nitriding zone having a temperature 25 to 150 ℃ lower than the atmospheric gas temperature of the 1 st nitriding zone are provided in a continuous nitriding furnace, and the atmospheric gas in the 1 st nitriding zone is made to flow into the 2 nd nitriding zone, so that a nitriding treatment is performed in which an iron nitride compound layer composed of an epsilon phase or an epsilon phase and a gamma '-phase is formed on the surface of a steel member in the 1 st nitriding zone, and a gamma' -phase is precipitated on the iron nitride compound layer in the 2 nd nitriding zone. |
| priorityDate |
2016-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |