http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105784676-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5a7f98d3b3231e677563ec0e1022b95 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-67 |
| filingDate | 2016-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57c5b013282fe72c47772b2cc04e4869 |
| publicationDate | 2016-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105784676-A |
| titleOfInvention | Method for detecting trace amount of nitrogen in gray pig iron |
| abstract | The invention discloses a method for detecting the trace amount of nitrogen in gray pig iron.The method includes the steps that a gray pig iron sample is subjected to quenching heat treatment, wherein the gray pig iron sample is heated to be at 750 DEG C, subjected to heat preservation for 3 hours, then taken out and cooled with water, the surface structure of the sample is changed to be in the half-white state, and then the sample is cut, polished and smoothened; spectral analysis is carried out immediately through a spark-source atomic emission spectrometer, wherein the parameters of the instrument include the nitrogen analysis wavelength of 149.270 nm, the argon washing time of 2 s, the pre-burning time of 10 s and the integral time of 13 s; detection is carried out to obtain the content of the trace amount of nitrogen.The detecting method is a method for rapidly and accurately measuring the trace amount of nitrogen elements in gray pig iron. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106546574-A |
| priorityDate | 2016-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.