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Ultra Hard Material And Tool
Abstract: An ultra hard alloy is a hard material with a high degree of toughness. Small amounts of various materials are added to achieve these properties. One such material is vanadium carbide (VC). However, a crushed carbide raw material has a large grain size, meaning the properties of a product cannot be improved uniformly. Vanadium trioxide (V2O3) was substituted for a carbide as one of the structural raw materials for a material used in producing a tool such as a hob. Because vanadium trioxide is softer than vanadium carbide, it can be readily converted to fine grains in the ball mill mixing process performed during raw material preparation. As a result, the effects of the uniformly dispersed vanadium trioxide results in improved hardness for the sintered ultra hard alloy.
Notices, Deadlines & Correspondence
Patent Information
Applicants
MITSUBISHI HEAVY INDUSTRIES LTD.
Inventors
1. Hideo TSUNODA
2. Yoichi TAJITSU
3. Yukio KODAMA
4. Taiji KIKUCHI
Specification
PLEASE SEE THE SEPCIFICATION ATTACHED.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 6075-delnp-2009-Form-18-(24-09-2009).pdf | 2009-09-24 |
| 2 | 6075-delnp-2009-Correspondence-Others-(24-09-2009).pdf | 2009-09-24 |
| 3 | 6075-DELNP-2009-GPA (21-10-2009).pdf | 2009-10-21 |
| 4 | 6075-DELNP-2009-Form-1 (21-10-2009).pdf | 2009-10-21 |
| 5 | 6075-DELNP-2009-Correspondence-Others (21-10-2009).pdf | 2009-10-21 |
| 6 | Form-5.pdf | 2011-08-21 |
| 7 | Form-3.pdf | 2011-08-21 |
| 8 | Form-1.pdf | 2011-08-21 |
| 9 | Drawings.pdf | 2011-08-21 |
| 10 | 6075-DELNP-2009-Form-3 (5-1-2010).pdf | 2011-08-21 |
| 11 | 6075-DELNP-2009-Correspondence-Others-(5-1-2010).pdf | 2011-08-21 |
| 12 | 6075-DELNP-2009_EXAMREPORT.pdf | 2016-06-30 |
| 13 | 6075-DELNP-2009.pdf | 2018-12-05 |