| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2dcebf5a7f7ddc3b081f70e8ce1c4097 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D2211-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D9-0075 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-002 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00 |
| filingDate |
2008-11-13^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4f83b1a6fed6ca6e7f3ea5cf2246948
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6f2e89883a27f69a1888b1ecf03bbd5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93dc4ac25d395f29724a81d793df124f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f7adb883d550fc04a737ef9011862bc |
| publicationDate |
2009-07-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-PI0804995-A2 |
| titleOfInvention |
fatigue properties in upper spring and steel spring |
| abstract |
FATIGUE PROPERTIES IN TOP SPRING AND ACT SPRING. Describes is a steel spring which contains by mass 1.2% or less of O; 0.1% to 2% Mn; 0.2% to 3% Si; 0.0003% to 0.005% Ai; 0.03 to 8 ppm Li; 30 ppm or less (excluding 0 ppm) Ca; and 10 ppm or less (excluding 0 ppm) Mg. Steel contains oxide inclusions meeting the following conditions from (1) to (3) at a number of 1 x 10 ^ -4 ^ or more per square millimeter: (1) containing a total of 80 mass percent or more of AI ~ 2 ~ O ~ 3 ~ and SiO ~ 2 ~ based on the inclusion composition excluding Li ~ 2 ~ O; (2) having a mass ratio of AI ~ 2 ~ O ~ 3 ~ to SiO ~ 2 ~ from 1: 4 to 2: 3; and (3) containing lithium (Li). The steel spring gives a spring that exhibits superior fatigue properties without strict control of the average composition of the inclusions. |
| priorityDate |
2007-11-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |