http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102507400-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2fe7d86d19c17425c3573a38f1c17baa |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N15-02 |
| filingDate | 2011-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_573a587fde35151cca1647a4f9fc06a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_139f2b85ce7788cca469f68c96154e75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ca5208844ade27600e0baea745de15e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4be6f9b0f2455d9c65e35ca1a1ea0790 |
| publicationDate | 2014-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102507400-B |
| titleOfInvention | Quantitative analysis method for residual life of T91 steel pipes |
| abstract | The invention relates to the field of quantitative analysis for residual life of steel pipes in a power station, in particular to a quantitative analysis method for residual life of T91 steel pipes. The method solves the problems of long elapsed time and large errors existing in the process that the traditional Larson-miller method and the derived method thereof and a nondestructive testing method conduct quantitative analysis for the residual life of T91 steel pipes in a power station boiler. The method comprises the following steps of: cutting a tested workpiece to form a sample, conducting metallographic inlaying, conducting grinding and polishing, and spraying water in the process of grinding and polishing; and after the surface roughness Ra is controlled by at most 0.8Mu m, fully etching the grinding and polishing surface with a nitric-acid alcoholic solution, then sequentially passing a metallographic microscope, and testing the particle sizes of carbides with a metallographic structure according to the national standard. Data handling is conducted on the particle sizes of the carbides obtained from tests of several times, and then the quantitative residual life of the T91 steel pipes is directly output. The method does not need do a creep tension experiment, and the analysis result has higher reliability. The method only needs the metallographic microscope to complete assessment of quantitative life, the test efficiency is high, the time period is short, and the cost is low. |
| priorityDate | 2011-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.