carburization ????

????? ?????? ????? ????? ???? ???? ???????? ??? ????? carburization ?????, ??? ???? ????? ????. ?? ??? ???? ????? ?? ??? ??? ???? ??? ???? ??? ????? ????? submicron ?????? ultrafine ?????? ?????. ???? ?????? ????????????, ?? ???? ??????? ????? ?????? ????? ????, ??? ?? ?? ???????? ?? ??????.

????? ????? ???? ?????, pelletizer, ??? ????, ???? ?????? ????????.

???? ?????? ?????? ??? ???? WO3 ???? ?????? tungstic ?? WO3 ????? ????????? ????? ? - APT (??????? AMT).????? ??? ??????.

?????? ?????? ????? ?WO3 ???? ????? ????? 16.5 ???????? ???? ??? 1 ?????? Hensell. ????? ?????? ???? ??? ???????? ??? ??????? ????? (????? 1.2 ?"?) ?????? ?? ?"? 3 ?????? (<0.1% H2O).?????? ?????? ???? ????? ??????? ?????? ?????? ????? ??????? ??? ?????? ?? ??? ??? ??????.

???? ???? ????????? ??: ?????? ??? 1-????, 1350 ℃ (?????); ?????? 2 ???? ???, 1650 ℃ (carburization).

????? ?? ???? ???? ?????? ????? ??? ????? ?????? ??????? ??????? WO2 ?????? (OH) 2.???? ?????? ?????? ????: WO3 → (WO2.9) → WO2.72 → WO2 → W → W2C → ?"?.WO2.72 ???? intermediately, ???? ????? ??????? WO2 ultrafine, ??????? ????? ?????? ?? ???? ????? ?????. ?? ??? ????? ?????? ???? (???? 6.13% WT C), ????? ?????? ?? ???????? ??????? ??? ????? ??? ????? ???? ??????.

????? ?????? ????? ??????? (Cr3C2 ????? ?? undoped) ????????? ?????? ????? ???? ??????? ???? ????? ??? 3.0 ?3.5cm2 ? g-1.???????? ????? ?????? ?? ???? 0.15um.

?? ?? ?? ????? ????? ??????? ?????, ?? ???? ????? ????? ????"? ?????:sales@chinatungsten.com ?? ??????: +86 592 5129696.

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