FIELD: processes.
SUBSTANCE: group of inventions relates to production of sintered composite product containing cubic boron nitride particles dispersed in matrix from cemented carbide. Method comprises sintering a mixture comprising particles of cubic boron nitride in an amount of 4 wt% or less and powder of cemented carbide at temperatures below 1350 °C without application of pressure. Resulting article may be used as a part exposed to wear, as ring stabiliser of drill string in an oil or gas well, or as an insert in roller cone bit.
EFFECT: higher wear resistance of articles.
11 cl, 2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYCRYSTALLINE ABRASIVE MATERIALS AND METHOD OF THEIR FABRICATION | 2005 |
|
RU2404021C2 |
| COMPOSITE ROTARY CUTTING TOOLS FROM CEMENTED CARBIDE AND CUTTING TOOL BLANKS | 2010 |
|
RU2536015C2 |
| CUTTING TOOL BASED ON POLYCRYSTALLINE CUBIC BORON NITRIDE AND METHOD OF MANUFACTURING THEREOF (VERSIONS) | 1996 |
|
RU2161087C2 |
| COMPOSITE MATERIALS - CEMENTED CARBIDE-METAL ALLOY | 2009 |
|
RU2499069C2 |
| METHOD OF MANUFACTURING CERAMICS FOR CUTTING TOOLS | 1986 |
|
RU2011649C1 |
| METHOD OF PRODUCING POLYCRYSTALLINE COMPOSITE MATERIAL | 2011 |
|
RU2525005C2 |
| COMPOSITE INSERTS WITH POLYCRYSTALLINE DIAMONDS | 2010 |
|
RU2503522C2 |
| DRILLING BIT AND OTHER PRODUCTS CONTAINING CEMENTED CARBIDE | 2009 |
|
RU2508178C2 |
| INSERT FOR CRUSHING TOOL, METHOD OF ITS PRODUCTION AND TOOL WITH SAID INSERT | 2009 |
|
RU2532932C2 |
| BORING BIT AND METHOD OF ITS MANUFACTURE | 2005 |
|
RU2376442C2 |
