Ndi zinthu ziti zomwe zimafunikira pakukonza mapepala a graphite?

Pepala la graphite ndi pepala lapadera lopangidwa ndi graphite. Pamene graphite inkakumbidwa pansi, inali ngati mamba, ndipo inkatchedwa graphite yachilengedwe. Mtundu woterewu wa graphite uyenera kusamalidwa ndi kuyengedwa musanagwiritse ntchito. Choyamba, masoka graphite ankawaviika mu osakaniza njira ya anaikira sulfuric asidi ndi anaikira nitric asidi kwa nthawi, ndiye osambitsidwa ndi madzi oyera ndi wotopetsa, ndiyeno kuika mu mkulu-kutentha ng'anjo kuwotcha. Mkonzi wotsatira wa Furuite graphite akuwonetsa zoyambira zopangirapepala la graphite:

Chifukwa kulowetsedwa pakati pa graphite kumasanduka nthunzi mofulumira pambuyo pa kutentha, nthawi yomweyo, voliyumu ya graphite imakula mofulumira ndi maulendo angapo kapena mazana, kotero mtundu wa graphite waukulu umapezeka, womwe umatchedwa "graphite yotupa". Pali mabowo ambiri mu kutupagraphite(kutsalira pambuyo pochotsa kulowetsedwa), zomwe zimachepetsa kwambiri kulongedza kwa graphite ku 0.01 ~ 0.059 / cm3, ndi kulemera kopepuka komanso kutentha kwabwino kwambiri. Chifukwa pali zibowo zambiri zokhala ndi makulidwe osiyanasiyana komanso zopindika, zimatha kulumikizidwa ndi crisscross wina ndi mnzake ndi mphamvu yakunja, yomwe ndi kudziphatika kwa graphite yowonjezedwa. Malingana ndi kudziphatika kumeneku kwa graphite yowonjezera, ikhoza kusinthidwa kukhala pepala la graphite.

Choncho, chofunika kwambiri pakupanga pepala la graphite ndi kukhala ndi zida zonse, ndiko kuti, chipangizo chokonzekera graphite yowonjezera kuchokera kumadzimadzi, kuyeretsa ndi kuyaka, komwe kuli madzi ndi moto, zomwe zingayambitse kuphulika, kupanga kotetezeka ndikofunikira kwambiri; Kachiwiri, papermaking ndi wodzigudubuza kukanikiza makina, kuthamanga liniya wa wodzigudubuza kukanikiza sayenera kukhala mkulu, apo ayi zingakhudze kufanana ndi mphamvu ya graphite pepala, ndi kuthamanga liniya ndi kochepa kwambiri, amene ngakhale zosatheka. Choncho, ndondomeko zinthu ziyenera kukhala zolondola, ndigraphite pepala amawopa chinyezi. Mapepala omalizidwa ayenera kukhala otetezedwa ndi chinyezi, kumbukirani kuti ndi madzi komanso otetezedwa bwino.