?????? ??????? ????? ?? ??????? ??????? (???? ????, ?????? ????? ?????? ?????, ?????? ????? ???? ?????? ?????), ???? ????? ???? ???????, ?????? ?????, ?????, ????, ??????, ?????? ???????, ?????? ???????, ????? ?????, ?????, ????? ??????, ???????? ??????, ??????????, ??? ??????? ?????. ?????? ?????? ??????? ????? ???? ?????? ???????????, ?????, ????? ?????, ?????????? ?????, ???, ?????? ???? ????????? ?????.
?????? ??????? ????? ???? ??????? ????? ???????, ?Co, Fe, Ni, ??? '????. ????? ????? ????? ???????, ?????? ??????? ????? ???? ???? ???? ????????: ???????-????? (WC-Co), ???????, ???????, ????? (WC-TIC-Co), ???????, ???????, ?????? [(???????) ????? WC-TIC-TaC- (NBC) -Co], ????? ??????? ????? ????? ???? ?????. ???? ?????? ??????? ????? ?? ????? ?????, ????? ?????? ?????, ??????? ?????, ?????? ???? ???????, ???? ???? ?? ??????? ??????? ????? ????????, ?? suitables ?????? ????? ???????, ????? ?????? ?????? ???, ?????? ??????, ??????? ?????? ?? ???? ????? ????? ????, ???? ??? '????? ????? ?????? ????? ?????. ?????? ??????? ????? ?????? ???? ??????? ???????? ??? ????? ????? ??????? ??????, ??? ?? ??? ????? ?????? ????.
?????? ??????? ????? ???????
1. ?????. ?????? ??????? ????? ?? ????? ??????, ?????? ??? ???? ??? ??? HRA85 ~ 93, ??? ?????? ??? ?? ?????? ????? ????? ??????. ?????? ??????? ????? ?? ????? ???????? ????, ?????? ??? ????? ???? ? -500 ℃, ?? ???? ???????? ????? ? -500 ℃, ???? ????? ???????. ???? 1000 ~ 1,100 ℃, ?????? ?? ????? ???? ????? ?????? HRA73 ~ 76.
2. ????. ??????? ????? ???? ????? ?????? ??? ?? 6000MPa, ???? ??? 3400MPa ~ 560OMPa. ???? ?????? ????????? ??? ??? ??? 750MPa-2500MPa.
3. ?????? ??????. ?????? ????? ?? ??????? ?????? ????? ???? ????? ???? ?????, ????? ???? ???? ?? ????? ?????, ?????? ????? ??? ????? ????. ?????? ??????? ????? ?????? ??? ?? ?? ?????? ?? ????? ??????? ?????, ?????? ????? ?? ?????? ????? ???? ?? ?????? ???????-????? ??? ???? ???? ?? 20% ~ 30% ??????? ???????-????? ????? ????.
4. ?????. ??????? ??????? ????? ????? ?????? ????? ?????? ??????? ?????? ????? ????? 15 ?? 20 ?????.
5. ???? ???????? ???????. ???? ??????? ??????? ?? ??????? ??????? ????? ??? (4.5 ~ 6.21) * 10 ^ -6 / ℃ (?0 ℃ ~ 300 ℃), ???? ???????? ??????? ?? ?????? ???????-????? ??? ??? ?? ????? ?? ????? ?????.
6. ??????? ??????? ????? ??????? ??????? ????, ???? ??? (4 ~ 7) x105MPa. ?????? ???? ????????? ??? ??? ????? ????????.??????? ?????? ?? ?????? ???????-????? ??? 0.14 ~ 0.21 cal / (??????? · ℃ · s), ???? ????? ??????? ????? 1 ~ 2 ?????. ?? ??????? ????? ?????? ?????? ???????, ?? ???? ????? ?????? ????? ???? ???, ??? ???? ????? ?????, ????? ?????? ??? ???? ????? ??? ???????? ????? ?????.
?????? ??????? ????? ?? ???? ????, ????? ?????, ??????? ??????? ????, ??????? ??????? ??????? ????? ????? ????? ??????? ????? ?????, ?? ????? ??? ?? ??????? ?????? ??????, ????? ????, ?????? ??? ?????, ????? ??????? ????? ????.
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