Ko te Kaolin, he kohuke kore-whakarewa, he momo uku me te toka uku he mea hanga mai i ngā kohuke uku rōpū kaolinite. Nā tōna āhua mā, ngawari hoki, e mōhiotia ana ko te oneone Baiyun. Ko ngā wāhanga matua ko te konumohe toruora me te hauhā hiko.

He mā, he ātaahua, he ngawari hoki te kakano o te kaolin parakore, ā, he pai ōna āhuatanga ā-tinana, ā-matū hoki pērā i te ngāwari me te ātete ahi. Ko te nuinga o ngā kohuke he kaolinite, he halloysite, he hydromica, he illite, he montmorillonite, me ngā kohuke pērā i te quartz me te feldspar.

Ngā āhuatanga o te tukanga:

1. Te Mā Te Kanapa – Ko te mā tētahi o ngā tawhā matua mō te mahi tukatuka o te kaolin, ā, ko te kaolin tino parakore he mā. Ka wehea te mā o te kaolin ki te mā tūturu me te mā kua whakapūkaratia. Mō ngā rauemi mata uku, he mea nui ake te mā i muri i te whakapūkaratia, ā, ko te teitei ake o te mā kua whakapūkaratia, ko te pai ake o te kounga.

2. Te tohatoha rahi o te matūriki – Ko te tohatoha rahi o te matūriki e pā ana ki te ōwehenga (e whakaatuhia ana i roto i te ōrau o te ihirangi) o ngā matūriki i roto i te kaolin tūturu i roto i tētahi whānuitanga o ngā rahi matūriki rerekē tonu (e whakaatuhia ana i roto i ngā mirimita, i ngā mata maikiromita rānei). He whakaritenga motuhake ā ia tari ahumahi mō te rahi matūriki me te pai o te kaolin mō ngā kaupapa rerekē. E hiahiatia ana e te Hononga o Amerika kia iti iho i te 2 μ m (6250 mata) te ihirangi o te kaolin e whakamahia ana hei paninga, e 90-95% te nui, ā, ko ngā whakakī pepa he iti iho i te 2 μ m te nui e 78-80%. Mō ngā tukanga maka e hiahia ana ki te maka tere, te tere whakateretere i te keri, me te tere maroke, me whakanui ake te rahi matūriki o ngā kai.

3. Whakatārewatanga: Ko te whakatārewatanga me te mararatanga e pā ana ki ngā āhuatanga o te kaolin e uaua ana ki te whakapūpū ina marara ki te wai. E mōhiotia ana hoki ko te ārai-whakapūpū. Ko te iti o te rahi o te matūriki, ko te pai ake o te whakatārewatanga. Ko te kaolin e whakamahia ana i roto i te umanga enamel me whai āhuatanga whakatārewatanga pai. Ko te mahi whakatārewatanga o te tauira kua marara ki te wai ka whakatauhia i te nuinga o te wā e tōna tere taunga i roto i tētahi wā.

4. Ārai hiko: He pai ngā āhuatanga ārai hiko o te kaolin kounga teitei, ka taea te whakamahi hei hanga uku auau-teitei me ngā uku ahokore. Ka taea te ine i te taumata o te mahi ārai hiko mā tōna kaha ki te ātete i te pakaru hiko.

Whakarōpūtanga:

Kaolin kua horoia ki te wai, kaolin metakaolin kua whakapūkaratia

Whakamahinga:

He whānuitia ngā whakamahinga o te kaolin, e whakamahia ana i roto i te hanga pepa, i ngā uku, me ngā rauemi ātete ahi, ā, muri iho ko ngā paninga, ngā whakakī rapa, ngā paninga enamel, me ngā rauemi mata sima mā. I roto i ngā rahinga iti, ka whakamahia i roto i ngā rāngai ahumahi pēnei i te kirihou, ngā peita, ngā tae, ngā wira huri, ngā pene, ngā mea whakapaipai o ia rā, te hopi, ngā kakahu, te hinu, te matū, ngā rauemi hanga, me ētahi atu.