??????? carburization

????? ??????????? (carburization)

???? ??????? ??? ???? ?? ???? ?????????? ???? 1300 ? 1700 ℃ ??????? ????.???????? ????? ?????? ???????? ???? ?? ???? W ?????? ????? ?? ???? ???????? ???????? ???? ?? ?"?. ?? ????? ??? ????? ?????? ??? ?????? ??????? ?19.3 ??? ? ???????-3 (W) 15.7 ??? ? ???????-3 (??"?). ????? ????? ?????? (sintering ??????), ???? ??????, ?????? ?????????? ?????? ????.

??? ????, ???? ???? ??? ???? ???? ??? ???? ???? ???????, ?????? ??? ?????? ?????? ???????, Ca, Si, Mg, ?? ??? ??????? ???? ??? ???????? ????? carburization (???? ???? ?????????). ?? ????? ??????? ????? ??"? (???????? carburization ????? ????) ?? ???? ??? ???? ????? ???? ????? ???? ????.

??? ??????? (W ?-C) ?????? ????? ?????? ???????? ???? carburization. ?? ???? ?????? ????? ?? ????, ??? V ?? ??????? ?????? ?????, ????? ????? ????, ?? ?????? ?????? ?????.????? ?????? ??? ???? ??????, ???? ?carburization, ????? ???? ?????? ?? ????? ??????? ??????? ?? ????????? ???? ?? ??? ?????? ????? ????. ????? ?? ????? ????? ??????? ?????? ?? ?????? ?????.

?????? ????? ??"? submicron, ?????? ????? ?? ????? ?????-????? ????? (????? ????? ????? ??"? ????? carburization ??????? ????? sintering Hardmetal) ????? ???????? ?????? ? + C ???? ??????.????? ?? ????? ??????? ???????? ?? ??????? ?? ??????.?????? ?? ?????? ?? ???? ?????? ?????? ???? ?????, ?? ???? ???? ???? ???? ?????? ?carburization ?? ?????? ?????.

??? ???? ????? ??????? ?????. ???? ???? ?????, ?? ????? ?? ?????? ??????? ????? ????? ??????.??? ?????? ?????? ????? ??? ????? ?? ?????, ??????? ?? ???? ?????.

????? ?????? ??? ??????? ???????? ?? ?????? ??????? ?????? ?????. ????? ????? ???????? ??????? ??? ?? ??????? ?? ?????, ????? ?????? ?????? ???? ??????? ?? ?????. ?????? ?? ????? ???????, ??? ?? ??????? ????????? ????? ?? ????? ????.?????? ?? ????? ??? ??????? ?????? ?????? ??? ??? ?????? ???? ?evaporize ????? carburization; ?????? ??? ??? ?????? ?????? ?? ????? ?? ???? ???? ???. ????? ???, ??????? ??? ????? ???? ??? ???? ???? ???, ?? ????? ?? ????? ??????? (????? ??????? ?????), ??? ????? ?????? ?? ??????? ?? ??? ????? ????? ?????.

??????? ????? ????? ?????? ?????? ?? ???? ???, ????? ?????? ????? ??????, ??? ?? ????? ???? ???????. ??? ?? ??, ??? ???? ???? ???? ?????? ?? ???????? ?????? ?????? ?????? ??????. ?????, ??? ????? ?? ????? carburization ??? intermediately ?????? ???????? ????.?????? ??? ???? ?????? ?????? ?Carburizing ???? ??????? ??.

????????? carburization ??????? ??? 1300 ?1700 ℃, ????? ????? ????? ???????? ?????? ?? ?????.???? ???????? ??? ????, ????? ?????? ????????? ????? ????. ???????? carburization ????? ?????? ???? ????? ???? ?? ???? ??????, ??????? ??? ????????? ????? ???? ????? sintering, ??? ???? ????? ?????? ?????? submicron. ??? ????, ????? ?????? ???? ????? ????? ??? ????? carburization ????????? ????? ????. ???, ???? ????? ??????? ????? submicron carburizing.

????? ????? ??????? ????? ????? ??? ?? ??? 1 ? 2 ????.???? ????????? ????? ???? ?????? ???? ?????? ?? ????? ??? ??? ????? ?? ????????? ??? ?? ?????.

???? ?????? ?????, ??? ????? ???? ?????, ????? ??? ????, ????????? ????????? ???. ?????? ???????? ???? ??????? ????????, ?????? ?????? ???? ????? ???????. ?? ??? ????? ????????, ??? ????? ???? ?????? ????? ????? ??????, ??? ????? ?????? ?? ???? ?? ????.?????? ??"? ?? ????? ?? ??????? ?????? ???? 0.5um (????? ultrafine), ????? ????? ?? ????? ??? pyrophorictiy, ?????? ???? ???? ??? ??? ?? ??????.

?????? ??"? submicron, ????? ????? ????? ????, ?????? ?????? ??? ???? ????? ????? ????? ??? ????? ???? ?????? ??? ?? ???? ????????? (????? attritor).????? ??"? ???? ?????? ?? ?????? ??????? ???? (????? Hardmetal; ???? ????? ???? ?????????? ????? ????? ?????? ????? ?????? ?? ????? ?? ????? Hardmetal ??? ?????) ?? ?????? ????? ?comination ?? ???.????? ??????? ?????? ??? ??? ?????? ?? ?? ??????? ??"? ?? (<2um) ??? ???? ????? ?????? ??????? ??"? ???? ????? sintered. ??? ?? ??, ?????? ????? ???????? (????? ?????? carburizing ?Fe-Ni-Cr ???? ??????? ????? ???? ?????) ?? ????? ?? ???????. ??? ?? ?? ????? ???? ???? ?????? ?? ???? ??????? ?????? ??"?.

???????? ??????? ?? ?? ?? ?????? ??????? ???? sintering, ??? ?? ???????? ???????? ????? ????? sintering. ???, ?? ??? ??? ?????? ???? ???? ?????? ???? ??????.

????? ???, ?? ????? ????? ????? ?? ??????? ????? ????? ??.

?????? ??????>>

1.Cast Tungsten Carbide Powder