Kumelwe ukuba uzibonile izitsha zobumba ezinemibala ehlukahlukene. Nokho, ingabe uyazi ukuthi kungani izitsha zobumba zingaveza zonke izinhlobo zemibala emihle?
Eqinisweni, izitsha zobumba ngokuvamile zine “glaze” ecwebezelayo futhi ebushelelezi ebusweni bazo.
I-glaze yenziwe ngezinto zokusetshenziswa zamaminerali (njenge-feldspar, i-quartz, i-kaolin) kanye nezinto zokusetshenziswa zamakhemikhali ezixutshwe ngesilinganiso esithile futhi zigaywe kahle zibe uketshezi oludaka, olufakwe ebusweni bomzimba we-ceramic.Ngemuva kwezinga lokushisa elithile le-calcining nokuncibilika, lapho izinga lokushisa lehla, lenza ungqimba oluncane lwengilazi ebusweni be-ceramic.
Eminyakeni engaphezu kuka-3000 edlule, abantu baseShayina base befunde ukusebenzisa amatshe nodaka ukwenza ama-glaze ukuhlobisa izitsha zobumba.Kamuva, abadwebi be-ceramic basebenzise isenzakalo somlotha kahhavini owela ngokwemvelo emzimbeni we-ceramic ukuze wenze i-glaze, base besebenzisa umlotha wezitshalo njengento eluhlaza yokwenza i-glaze.
I-glaze esetshenziswa ekukhiqizeni izitsha zobumba zansuku zonke ihlukaniswe i-lime glaze kanye ne-feldspar glaze. I-Lime glaze yenziwe ngetshe elicwebezelayo (i-mineral material eluhlaza yemvelo) kanye ne-lime-flyash (ingxenye eyinhloko i-calcium oxide), kuyilapho i-feldspar glaze ikakhulukazi yakhiwe nge-quartz, i-feldspar, imabula, i-kaolin, njll.
Ukwengeza ama-oxide ensimbi noma ukungena kwezinye izingxenye zamakhemikhali ku-lime glaze naku-feldspar glaze, futhi kuye ngezinga lokushisa lokudubula, imibala ehlukahlukene ecwebezelayo ingakhiwa.Kukhona i-cyan, emnyama, eluhlaza okotshani, ephuzi, ebomvu, eluhlaza okwesibhakabhaka, ensomi, njll.I-porcelain emhlophe icwebezela esobala elicishe lingabi nambala. Ngokuvamile, ugqinsi lwecwecwe le-ceramic lomzimba lingamasentimitha angu-0.1, kodwa ngemva kokukhishwa kuhhavini, lizoba inamathela ngokuqinile emzimbeni we-porcelain, okwenza i-porcelain iminyene, icwebezele, futhi ithambe, ingangeneki emanzini noma ikhiphe amagwebu, inikeze abantu umuzwa okhanya njengesibuko.Ngesikhathi esifanayo, kungathuthukisa ukuqina, kuvimbele ukungcola, futhi kube lula ukuhlanza.
Isikhathi sokuthumela: Apr-26-2023