CHO, YONG GUN,조용건,LEE KANG YULL,이강률,JEONG OK GEUN,정옥근,CHO, YONG GUNKR
申请号：
KR1020190075419
公开号：
KR1020257980000B1
申请日:
2019.06.25
申请国别(地区):
KR
年份:
2019
代理人:
摘要：
The present invention relates to a manufacturing method for a high-density sintered cobalt-chrome-molybdenum non-precious alloy for a biomaterial. More specifically, the manufacturing method for a high-density sintered cobalt-chrome-molybdenum non-precious alloy for a biomaterial includes: a step (a) of preparing cobalt-chrome-molybdenum non-precious alloy powder； a step (b) of mixing a solid lubricant and boron which is a functional raw material to the prepared powder in the step (a)； a step (c) of filling the mixed powder in the step (b) into a mold and pressing and forming the mold； and a step (d) of sintering a formed object formed in the step (c). The step (b) includes mixing the powder in order for the content of the boron becomes 0.14-0.30 wt% based on the 100 wt% of the mixed powder in the step (b). According to the present invention, the manufacturing method for a high-density sintered cobalt-chrome-molybdenum non-precious alloy for a biomaterial with improved corrosion resistance does not use nickel as an alloy material so that there is no allergic reaction. Also, the high-density sintered cobalt-chrome-molybdenum non-precious alloy for a biomaterial can be manufactured by a powder metallurgy method but not a casting method. So, the manufacturing method for a high-density sintered cobalt-chrome-molybdenum non-precious alloy for a biomaterial can remarkably reduce manufacturing costs and can form a sintered body of high density by limiting a sintering condition and a usage of the boron which is a functional additive. So, the manufacturing method for a high-density sintered cobalt-chrome-molybdenum non-precious alloy for a biomaterial can improve the corrosion resistance which is a problem of a powder metallurgy product.본 발명은 생체재료용 고밀도 소결 코발트-크롬-몰리브덴 비귀금속 합금의 제조방법에 관한 것으로, 더욱 상세하게는 (a) 코발트-크롬-몰리브덴 비귀금속 합금 분말을 준비하는 단계와, (b) 상기 (a) 단계의 준비된 분말에 고체 윤활제와 기능성 원료인 붕소를 혼합하는 단계와, (c) 상기 (b) 단계의 혼합된 분말을 금형에 충전하고 가압 성형하는 단계와, (d) 상기 (c) 단계의 성형된 성형체를 소결하는 단계를 포함하되, 상기 (
