Kaolin, chicherwa chisiri chesimbi, imhando yedombo revhu nevhu rine minerals dzevhu dzeboka rekaolinite. Nekuda kwechitarisiko chayo chena uye chakapfava, inozivikanwawo sevhu reBaiyun. Zvikamu zvikuru ialuminium trioxide nesilicon dioxide.

Kaolin yayo yakachena ine magadzirirwo machena, inonyorova, uye yakapfava, ine hunhu hwakanaka hwemuviri uye hwemakemikari senge plasticity uye inodzivirira moto. Muumbirwo wayo wezvicherwa unonyanya kuumbwa nekaolinite, halloysite, hydromica, illite, montmorillonite, pamwe chete nezvicherwa zvakaita se quartz ne feldspar.

Maitiro ekuita:

1. Kupenya kweChena - Kuchena ndeimwe yenzira huru dzekugadzirisa mashandiro ekaolin, uye kaolin yakachena kwazvo ichena. Kuchena kwekaolin kwakakamurwa kuva kuchena kwechisikigo uye kuchena kwakacheneswa. Kune zvigadzirwa zveceramic, kuchena mushure me calcination kwakakosha, uye kuchena kwakacheneswa kwakakwira, kunaka kunowedzera.

2. Kugoverwa kwehukuru hwezvikamu - Kugoverwa kwehukuru hwezvikamu kunoreva huwandu (hunoratidzwa muhuwandu hwehuwandu) hwezvikamu zviri mu kaolin yechisikigo mukati mehuwandu hwakatarwa hwehukuru hwakasiyana hwezvikamu (hunoratidzwa mumamirimita kana micrometer mesh). Dhipatimendi rega rega remaindasitiri rine zvinodiwa zvakananga zvehukuru hwezvikamu uye kupfava kwekaolin kune zvinangwa zvakasiyana. United States inoda kuti kaolin inoshandiswa sechifukidziro ive nehuwandu husingasviki 2 μ m (6250 mesh), inoverengera 90-95%, uye mafiller ekugadzira mapepa ane huwandu husingasviki 2 μ m anokwana 78-80%. Kune maitiro ekukanda anoda kukurumidza kukanda, kukurumidza kukanda, uye kukurumidza kupera mvura, zvakakosha kuwedzera hukuru hwezvikamu zvezvinoshandiswa.

3. Kumiswa: Kumiswa uye kupararira zvinoreva hunhu hwekaolin hunonetsa kudonha kana hwakapararira mumvura. Hunozivikanwawo sekudzivirira kudonha kwemvura. Kana saizi yechinhu ichi idiki, kumiswa kwacho kuri nani. Kaolin inoshandiswa muindasitiri ye enamel inoda hunhu hwakanaka hwekumiswa. Kushanda kwekumiswa kwesampuli yakapararira mumvura kunowanzo tsanangurwa nechiyero chayo chekugara kwenguva yakati.

4. Kudzivirira magetsi: Kaolin yemhando yepamusoro ine hunhu hwakanaka hwekudzivirira magetsi, iyo inogona kushandiswa kugadzira zviumbwa zvesimbi zvine frequency yakakwira uye zviumbwa zvisina waya. Hunhu hwekushanda kwekudzivirira magetsi hunogona kuyerwa nekukwanisa kwayo kutsungirira kuputsika kwemagetsi.

Kupatsanura:

Kaolin yakagezwa nemvura yakakangwa ne calcium metakaolin

Mashandisirwo:

Kaolin ine mashandisirwo akasiyana-siyana, anonyanya kushandiswa mukugadzira mapepa, zvedongo, uye zvinhu zvinoramba kushanda, ichiteverwa nekupenda, zvinozadza rabha, zvinonamira enamel, uye zvinhu zvesimbi zvesimende chena. Muhuwandu hushoma, inoshandiswa mumaindasitiri akadai sepurasitiki, pendi, pigments, mavhiri ekukuya, mapenzura, zvizoro zvezuva nezuva, sipo, machira, peturu, makemikari, zvinhu zvekuvaka, nezvimwewo.