| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-5445
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-5436
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3813
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-656
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3865
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-77 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B23K20-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B23K20-1245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-5831
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-645 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-645
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-5835
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B23K20-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-5831 |
| filingDate |
2020-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-111777418-B |
| titleOfInvention |
Superhard composite material stirring head for friction stir welding and preparation method |
| abstract |
The invention relates to a superhard composite material stirring head for friction stir welding and a preparation method thereof, wherein the superhard composite material stirring head for friction stir welding is characterized in that the stirring head comprises 72-78 mass percent of CBN (cubic boron nitride), and the balance of AlN and TiB 2 The composite material is prepared. The pressure of press-fitting sintering is 4-4.5 Gpa, and the sintering temperature T is 1600-1750 ℃. Compared with the prior art, the invention has the advantages that: the superhard wear-resisting shock resistance of the stirring head is improved. The die can be formed by one-time pressing, thereby greatly simplifying the process flow, saving the production cost and improving the production efficiency. |
| priorityDate |
2020-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |