Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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CFRP Manufacturing method of WC alloy hard materials for CFRP cutting tool application
The present invention relates to a method for producing a tungsten carbide-cobalt sintered body for CFRP cutting tools, wherein the method comprises: a powder production step in which tungsten carbide powder and cobalt powder are spherically granulated by applying an RTP process; a mounting step of mounting a mold filled with spherical granulated powder in a chamber of a pulse current active sintering device; a vacuum configuring step of configuring vacuum in the chamber; a molding step of molding a product by increasing the temperature of mixed and pulverized powder while maintaining a constant pressure on the mixed pulverized powder in a mold; and a cooling step of cooling the inside of the chamber while maintaining the pressure lowered to the lowest pressure (10 MPa), the pressure having been applied to a mixed and pulverized tungsten carbide-cobalt sintered body in the mold after the temperature is raised in the molding step.
본 발명은 CFRP 절삭공구용 텅스텐 카바이드-코발트 소결체 제조방법에 관한 것으로서, 텅스텐 카바이드 분말과 코발트 분말을 RTP 공정을 적용하여 구형 조립화한 분말제조단계와, 구형 조립화된 분말이 충진된 몰드를 펄스전류활성 소결 장치의 챔버 내에 장착하는 장착단계와, 챔버 내부를 진공화하는 진공화단계와, 몰드 내의 혼합 분쇄된 분말에 일정의 압력을 유지하면서 상기 혼합 분쇄된 분말을 승온시켜 제품을 성형하는 성형단계와, 성형단계에서 승온이 이루어진 후 몰드 내의 혼합 분쇄된 텅스텐 카바이드-코발트 소결체에 가압된 압력을 최저압(10MPa)으로 낮추어 유지하면서 챔버 내부를 냉각하는 냉각단계를 포함한다.
CFRP Manufacturing method of WC alloy hard materials for CFRP cutting tool application
The present invention relates to a method for producing a tungsten carbide-cobalt sintered body for CFRP cutting tools, wherein the method comprises: a powder production step in which tungsten carbide powder and cobalt powder are spherically granulated by applying an RTP process; a mounting step of mounting a mold filled with spherical granulated powder in a chamber of a pulse current active sintering device; a vacuum configuring step of configuring vacuum in the chamber; a molding step of molding a product by increasing the temperature of mixed and pulverized powder while maintaining a constant pressure on the mixed pulverized powder in a mold; and a cooling step of cooling the inside of the chamber while maintaining the pressure lowered to the lowest pressure (10 MPa), the pressure having been applied to a mixed and pulverized tungsten carbide-cobalt sintered body in the mold after the temperature is raised in the molding step.
본 발명은 CFRP 절삭공구용 텅스텐 카바이드-코발트 소결체 제조방법에 관한 것으로서, 텅스텐 카바이드 분말과 코발트 분말을 RTP 공정을 적용하여 구형 조립화한 분말제조단계와, 구형 조립화된 분말이 충진된 몰드를 펄스전류활성 소결 장치의 챔버 내에 장착하는 장착단계와, 챔버 내부를 진공화하는 진공화단계와, 몰드 내의 혼합 분쇄된 분말에 일정의 압력을 유지하면서 상기 혼합 분쇄된 분말을 승온시켜 제품을 성형하는 성형단계와, 성형단계에서 승온이 이루어진 후 몰드 내의 혼합 분쇄된 텅스텐 카바이드-코발트 소결체에 가압된 압력을 최저압(10MPa)으로 낮추어 유지하면서 챔버 내부를 냉각하는 냉각단계를 포함한다.
CFRP Manufacturing method of WC alloy hard materials for CFRP cutting tool application
CFRP가공 툴용 텅스텐 카바이드계 소재 제조방법
KIM DONG KI (Autor:in)
25.05.2021
Patent
Elektronische Ressource
Koreanisch
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