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Method for producing polycrystalline diamond body, polycrystalline diamond body, cutting tool, wear-resistance tool and grinding tool
Provided is a method for producing a polycrystalline diamond body, the method including a first step of heat-treating a powder of high-pressure-phase carbon at higher than or equal to 1300° C. to obtain a heat-treated carbon powder, and a second step of sintering the heat-treated carbon powder under conditions of greater than or equal to 12 GPa and less than or equal to 25 GPa and higher than or equal to 1200° C. and lower than or equal to 2300° C. to obtain a polycrystalline diamond body.
Method for producing polycrystalline diamond body, polycrystalline diamond body, cutting tool, wear-resistance tool and grinding tool
Provided is a method for producing a polycrystalline diamond body, the method including a first step of heat-treating a powder of high-pressure-phase carbon at higher than or equal to 1300° C. to obtain a heat-treated carbon powder, and a second step of sintering the heat-treated carbon powder under conditions of greater than or equal to 12 GPa and less than or equal to 25 GPa and higher than or equal to 1200° C. and lower than or equal to 2300° C. to obtain a polycrystalline diamond body.
Method for producing polycrystalline diamond body, polycrystalline diamond body, cutting tool, wear-resistance tool and grinding tool
ISHIDA YUH (author) / SUMIYA HITOSHI (author)
2022-07-12
Patent
Electronic Resource
English
IPC:
B23B
Drehen
,
TURNING
/
B23C
Fräsen
,
MILLING
/
B23D
Hobeln
,
PLANING
/
B23F
Herstellen von Zahnrädern oder Zahnstangen
,
MAKING GEARS OR TOOTHED RACKS
/
B23G
Gewindeschneiden
,
THREAD CUTTING
/
B24D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
,
Werkzeuge zum Schleifen, Polieren oder Schärfen
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C04B
Kalk
,
LIME
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POLYCRYSTALLINE DIAMOND BODY, CUTTING TOOL, WEAR-RESISTANT TOOL, AND GRINDING TOOL
| European Patent Office | 2020