Ko te pepa graphite he pepa motuhake i tukatukahia mai i te graphite hei rauemi mata. I te keri kauwhata mai i te whenua, he rite tonu ki te unahi, he ngawari, ka kiia ko te kauwhata maori. Ko tenei kauwhata me tukatuka me te whakamahine kia whai hua ai. Tuatahi, rukuhia te graphite maori ki roto i te ranunga o te waikawa pungatara me te waikawa nitric concentrated mo tetahi wa, katahi ka tangohia ki waho, ka horoi ki te wai, ka whakamaroke, katahi ka maka ki roto i te oumu wera teitei hei tahu. Ko te kaiwhakatika kauwhata Furuite e whai ake nei e whakaatu ana i nga tikanga mo te hanga pepa kauwhata:
Na te mea ka tere te whakaetonga i waenga i nga graphites i muri i te whakamahana, i te wa ano, ka tere te ruri o te graphite ki te tatini, ki te rau nga wa ranei, no reira ka puta mai he momo graphite whanui, e kiia nei ko te "graphite whakawhānui". He maha nga kohao (ka waiho i muri i te tangohanga o nga whakaurunga) i roto i te graphite kua whakawhānuihia, e tino whakaiti ana i te nui o te kiato o te kauwhata, ko te 0.01-0.059/cm3, he marama te taumaha me te tino pai ki te whakamahana wera. Na te mea he maha nga kohao, he rereke te rahi, he koretake hoki, ka taea te whitiwhiti tetahi ki tetahi i te wa e pa ana te kaha o waho. Koinei te whakapiri-whaiaro o te kauwhata whakawhanui. E ai ki te piri-whaiaro o te graphite kua whakawhānuihia, ka taea te tuka hei pepa kauwhata.
No reira, ko te tikanga mo te hanga pepa graphite he huinga taputapu katoa, ara, he taputapu mo te whakarite kauwhata whakawhanui mai i te rumaki, te horoi, te wera, me era atu mea, kei roto he wai me te ahi. He mea nui rawa; ko te tuarua ko te hanga pepa me te miihini roera pehi. Ko te pehanga raina o te roera pehi kia kaua e teitei rawa, ki te kore ka pa ki te taurite me te kaha o te pepa graphite, a, ki te iti rawa te pehanga raina, ka kore rawa e whakaaetia. Na reira, me tika nga tikanga o te tukanga i hangaia, me te wehi o te pepa kauwhata ki te makuku, me te pepa kua oti te whakakoi ki roto i te takai makuku-tohu me te penapena tika.
Wā whakairinga: Sep-23-2022