http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103182512-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_53b4d53983adbf56dd0e7d0bf96f8ce5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F7-00 |
| filingDate | 2013-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c86d36cd3b144c7e562180cb1725663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f695d2e7e0fc58b0711509006dfb56c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fc9efcaa165d4d8971ce079827faf20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49120661166f74cd4c22bf2cc350f9ee |
| publicationDate | 2015-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103182512-B |
| titleOfInvention | Interlayer-free diffusion connecting method of hard alloy and steel |
| abstract | The invention discloses an interlay-free diffusion connecting method of hard alloy and steel. The interlay-free layer diffusion connecting method is characterized by comprising the steps of firstly, evenly mixing 10-40wt% of excessive buna with hard alloy raw material powder, forming the hard alloy powder coated by the buna; pressing into a green body with the porosity of 55-80% by adjusting the powder filling quantity; then putting the steel into a middle cavity of a porous hard alloy green body to carry out liquid-phase sintering; reducing the hole size and quality of the green body in a sintering process at high temperature of 1300-1440 DEG C, wherein the porosity of the sintering body is 25-50%; further heating to 1450-1600 DEG C to melt steel; diffusing the steel liquid into the hard alloy and filling into continuous holes inside the hard alloy; and forming metallurgical bonding with high bonding strength. The interlay-free diffusion connecting method of hard alloy and steel has the advantages that hard alloy sintering and diffusion connecting are combined; an active interlayer does not exist; the technology is simple; and a steel metal phase penetrates into carbon steel from inside of the hard alloy, diffusion is enough, residual stress is low, and bonding strength is high. |
| priorityDate | 2013-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.