????? ???? ???????
???? ?????? ??????? (???? ?????? ?????? ?????) ?? ???? ???????? ?????? ????? ?? ????. ???? ??????? ???? ??? ????? ?? ????? ?????? ?????, ?????? ?????? ???????? ??????? ?????.
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??? ????? ??????? ????? ??? ???? (wolframite, scheelite, scheelite ???????, ferberite, hubnerite) ?? (??????? ???? ?????), ????? ????? ????? ??????? ??????? ?? ???? ??????? ??????? ????? ???? ?? ??? ?????? ?? ????? ??????? ??????? ????? ????? ??????? .
???? ??????? ??? ???? ?? ??? ????? ???? ?? trioxide ??????? ?? paratungstate ??????? . ????? ????? ???? ????? ???? ??????? ????? ???? ??? ???? ????? :???? ?????? ?? 500 ???????? ~ 700oC , ??????? ????? ?? ?????? trioxide ??????? ;???? ????????????? ?? 700 ~ 900oC , ????? ??????? ?? ????? ????? ???????. ????? ????? ?????? ????? ???????????? ???? ?????? ??????. ????? ?? ???????? ?????? ??????? (???? ????, ???? ???????, ???? ??????? , ?????????? ) ????? ??????????? ?????? . ???? ?? ???? ???????????? ????? ,????? ?????? ?????????? ???????? ?????????? ?????? ??????? ???? ????? ?? ?????? ???????,????? ?? ?????? ???? ?????? , ????? ???? ?????? ???? ????????????. ??? ????????? ?????? ??????,???? ???? ?? ???? ??????? ??? ????. ???? ?? ???? ??????? , ????? ?????? ???? , ?? ?????? ??????? ???????? ??????? ?? ????? ???? , ???????? ????? ??? 1050oC . ???? ?? ???? ??????? ??? ???? ???? ???? ??. ?????,????????? ???? ??????? , ????, ????? ????? ????? ?????? ???????????. ???? ??????? ??????? ??????? ???? ???? , ???? ??????? ?????? Ultra-???? , ?? ?????? ?? ??????, ????? ???? ?? ??????? ,???? ?????? ???? ??????? ??? ???? ? 0.05μm .
?? ?? ?? ????? ??????? ????, ?? ???? ????? ????? ????"? ?????:sales@chinatungsten.com ?? ??????: +86 592 5129696.
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????? Chinatungsten | ??????? ????? | ??????? ????? ??????? | ??????? ???? ?????? | ??????? ??????? ??????? ???? | ??????? ?????? ??????? | ?????? ??????? | Xiamen Tungsten ??????? ??? | ???? ??????? | ???????? | ??? ??????? | ??? ??????? | ?? ??????? ???? ??????? ??? | ?? ????? | ??????? ???? | ??? ??????? Sinker | ??????? ????? |