http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103045804-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b3352c514c0c25f7dabc72950e007f25 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21C7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21C7-072 |
| filingDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_495eebeb1a92e2494a40d028bc6a741d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a471e57358cf030bb090136b0ab5272f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52a14eafeaaf2994840f0d6fcb1f1ac6 |
| publicationDate | 2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103045804-B |
| titleOfInvention | Method for smelting stainless steel with ultra-low carbon and nitrogen content |
| abstract | The invention belongs to the technical field of preparation methods for stainless steel, particularly relates to a method for smelting stainless steel with ultra-low carbon and nitrogen content, and mainly solves the problem that the molten steel temperature falls greatly because of untight sealing and long processing time for aligning a ladle hanging-in tank to the of a bottom argon blowing top during stainless steel smelting with ultra-low carbon and nitrogen content through VOD (vacuum oxygen decarburization). The technical scheme is that the ratio of the internal diameter of a single-nozzle dip pipe of a single-nozzle refining furnace to that of a ladle is controlled, two bottom blowing bricks are arranged at the bottom of the ladle, and the method for smelting the stainless steel with ultra-low carbon and nitrogen content is finished through two steps under certain initial conditions: (1) inserting the single-nozzle dip pipe into molten steel of the ladle and connecting two bottom argon blowing pipes of the single-nozzle refining furnace; and (2) finishing smelting the stainless steel with the C and N content smaller than 0.025% in 45min-75min according to different chromium contents. The method has the advantages that the decarburization and the denitrification speeds are high, carbon and nitrogen addition in the smelting process is avoided, and seal rings are saved. |
| priorityDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.