Nga Hua Waariki Kua Sima Te Whakaritenga Paura Tungsten

Ko te paura tungsten matūriki tino pai he pango, he matūriki paitungstenKo te paura he hina hina, me te matūriki matūriki tungsten paura he hina hina me te whiti konganuku.Ka taea te whakaputa i te paura tungsten ma te whakaiti i te waikura tungsten.Ko nga tikanga whakahekenga matua ko te whakaheke hauwai me te whakaheke waro.I tenei wa, ka whakamahia te tikanga whakaheke hauwai.Ko te hononga o te hauwai me te hāora i te pāmahana teitei he nui ake i te hononga o te tungsten me te hāora.Na reira, ka timata te tungsten trioxide ki te whakaheke i te hauwai i te 380~400°C.Ka taea e te hauwai te whakaheke i te haurua ki rotopaura tungsteni runga ake i te 630°C.

.Tepaura tungsteni hangaia e te tikanga whakaheke hauwai he tino ma, he ngawari ki te whakahaere i te rahi matūriki o te paura.I te kore o te hauwai, kei te waatea ano te tikanga whakaheke waro.Ko te painga o te tarutaru maroke he iti te waro pango me te ngawari ki te tiki, engari he uaua ki te whakahaere i te rahi matūriki o te paura.He tikanga whakaheke mo te wa kotahi mo te whakaheke i te waikura tungsten me te hauwai hei whakarite i te paura tungsten, kei reira ano te tikanga whakahekenga-maha e whakaheke ana i te tuatahi o te WO3 ki te WO2, katahi ka whakaheke i te waikawa oxalic i te tuatahi ki te hanga w paura.I roto i te tukanga whakaputa o naianei, ko te paura tungsten te nuinga o te wa ka mahia e te tikanga whakaheke tika kotahi-waahi.

I tua atu, kei reira ano te tikanga o te whakaiti tika i te paratungstate ammonium ki te paura tungsten.Ko etahi tungsten kaupapa motuhake ka rite ano ma te tikanga whakaheke halide.
Kei reira ano te tikanga aluminothermic hei whakaiti i te paura ore me te whakarite.Mai i te tau 2000, ko te mahi whakarite i te paura tungsten ultrafine ma te whakaheke hauwai o te tungsten puru kua whakanuia nuitia.