http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1730180-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_05d0dedada8029867e544066bd4a8d29 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D9-22 |
| filingDate | 1989-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a70a96e5790b6e0747477282b57b9d1c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27eeb437c05e34b7223d31ee04153c68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ff44ae3f01abd1b7b76ee5605164821 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b35a695c8c5e13c019afe68937160ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9423bc6283c723adc3a3c8f6a5f2a3d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d94499e548bbc8c08df172c09e56c0aa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08064c773869c64a1b07b76454077809 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45347c85540d6da1066be9566f9f1737 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_967e2a370153b21e51d5207b1b506db4 |
| publicationDate | 1992-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1730180-A1 |
| titleOfInvention | Method of hardening high-speed steel tools |
| abstract | The invention relates to metallurgy, in particular to methods of chemical heat treatment, and can be used to increase the durability of a metal-cutting tool. The purpose of the invention is to increase the wear resistance. The method is as follows. The tool for high-speed steel is degreased, the surface is decapitated with a solution of hydrofluoric acid, treated at 95-100 ° C in 4.0-5.5% aqueous-alcoholic solution of boric acid in the presence of iodine ions, while Thiophate-128T in the amount of 8-12 g / l or alkyltrimethylammonium chloride in the amount of 9.5-10 g / l is used as a surfactant. The treatment time when using Thiophate-128T is 1.5-2.25 h, and when using alkyltrimethylammonium chloride, 1.5-2 h. Then, the final heat treatment is carried out at 250,300 ° C for 1 h. The application of the proposed method allows It does not increase the wear resistance of the tool from high-speed steel by at least 30%. 3 hp f-ly, 1 tab. SP |
| priorityDate | 1989-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.