CBN (Cubic Boron Nitride) was first synthesized in the 1950s by American general electric (GE) under high temperature and high pressure by the artificial methods. Its hardness reaches HV8000, which is second only to diamond (HV10000) and much higher than other materials. It and diamond are collectively known as superhard materials.
CBN 결정과 다이아몬드 결정체는 셈 아연 광산 유형에 속하며 격자 상수가 가깝고 화학 결합 유형이 동일하므로 CBN은 다이아몬드에 가까운 경도와 내압 강도, 그리고 N, B 원자로 이루어져 있어 금강석보다 높은 열적 안정성과 화학적 관성을 가지고 있다.
The manufacturing method of CBN tool material is mainly the hot pressing method. The original material of pressing CBN single crystal powder — hexagonal boron nitrous oxide powder (HBN) is placed in the chamber of leaf wax, and the catalyst is added. With a hydraulic press with six or two heads, the CBN single crystal powder is formed under 1600℃ and 5 ~ 6GPa under 10min of hot pressing. Single crystal powder can be used in abrasives and abrasives. With the CBN single crystal powder plus catalyst and binder, at 1800℃, 5 ~ 6GPa under the pressure of 3 minutes can be obtained PCBN overall blade or composite blade (cemented carbide backing, there is 0.5mm left and right CBN thin layer).
데미나 커터 연삭기는 고품질의 입방 질화붕소 커터를 연마할 수 있다.
