Ukuhanjiswa kobungakanani besuntswana
Ulwabiwo lobungakanani besuntswana lubhekiselele kumlinganiselo (obonakaliswe kumxholo wepesenti) wamasuntswana kwikaolin yendalo ngaphakathi koluhlu oluqhubekayo lobungakanani bamasuntswana ahlukeneyo (obonakaliswa kubungakanani bomnatha beemilimitha okanye iimicrometers).Iimpawu zokuhanjiswa kobungakanani besuntswana le-kaolin zibaluleke kakhulu ekukhetheni nasekusetyenzisweni kwenkqubo yeentsimbi.Ubungakanani bayo be-particle bunempembelelo enkulu kwi-plastiki yayo, i-viscosity yodaka, amandla okutshintsha i-ion, ukusebenza kokubumba, ukusebenza kokumisa, kunye nokusebenza kwe-sintering.I-Kaolin ore ifuna ukucutshungulwa kobugcisa, kwaye nokuba kulula ukusetyenzwa kwisohlwayo esifunekayo ibe yenye yemigangatho yokuvavanya umgangatho wentsimbi.Isebe ngalinye lemizi-mveliso linobungakanani bamasuntswana athile kunye neemfuno zokulunga kusetyenziso olwahlukeneyo lwekaolin.Ukuba iUnited States idinga i-kaolin esetyenziswe njengengubo ibe ngaphantsi kwe-2 μ Umxholo we-m ubala i-90-95%, kunye ne-papermaking filler ingaphantsi kwe-2 μ Umlinganiselo we-m yi-78-80%.

Iplastiki
Udongwe olwenziwe ngokudityaniswa kwe-kaolin kunye namanzi lunokukhubazeka phantsi kwamandla angaphandle, kwaye emva kokuba amandla angaphandle asusiwe, angakwazi ukugcina le propati ye-deformation, ebizwa ngokuba yiplastiki.Iplastiki sisiseko senkqubo yokwenza i-kaolin kwimizimba ye-ceramic, kwaye ikwayisalathisi esiphambili sobugcisa benkqubo.Ngokuqhelekileyo, isalathisi seplastiki kunye nesalathisi seplastiki sisetyenziselwa ukumela ubungakanani beplastiki.Isalathiso seplastiki sibhekiselele kumda wolwelo wokufuma kwimathiriyeli yodongwe lwe-kaolin kuthatyathwe umda weplastiki yesiqulatho sokufuma, ochazwa njengepesenti, oko kukuthi, W plasticity index=100 (W umda wolwelo – W umda weplastiki).Isalathiso seplastiki sibonisa ukubunjwa kwezinto zodongwe lwe-kaolin.Umthwalo kunye nokuguqulwa kwebhola yodongwe ngexesha lokunyanzeliswa kunye nokutyunyuzwa kunokulinganiswa ngokuthe ngqo usebenzisa imitha yeplastiki, echazwe nge-kg · cm.Ngokuqhelekileyo, isalathisi seplastiki siphezulu, ngcono ukubunjwa kwayo.Iplastiki yekaolin inokwahlulwa ibe ngamanqanaba amane.

Amandla ePlastiki Isalathiso sePlastiki yePlastiki
Iplastiki eyomeleleyo>153.6
Iplastiki ephakathi 7-152.5-3.6
Iplastiki ebuthathaka 1-7<2.5<br /> Non iplastiki<1<br /> Unxulumano

Ukubophelela kubhekiselele kubuchule be-kaolin ukudibanisa kunye nezinto ezingezo zeplastiki ekrwada ukwenza ubuninzi bodongwe lweplastiki kwaye ibe namandla athile okomisa.Ukumiselwa kwesakhono sokubopha kubandakanya ukongeza isanti yequartz esemgangathweni (kunye nokwakheka kobunzima be-0.25-0.15 ye-particle size fractioning accounting ye-70% kunye ne-0.15-0.09mm i-particle size size fraction accounting ye-30%) kwi-kaolin.Owona mxholo wesanti uphezulu xa usenakho ukugcina ibhola yodongwe yeplastiki kwaye amandla aguquguqukayo emva kokumiswa asetyenziselwa ukumisela ubude bayo.Okukhona isanti idityaniswa, kokukhona amandla okumanyana anamandla kulo mhlaba we kaolin.Ngesiqhelo, i-kaolin eneplastiki eyomeleleyo nayo inamandla okubopha.

Ukomisa ukusebenza
Ukomisa ukusebenza kubhekiselele ekusebenzeni kodaka lwe-kaolin ngexesha lenkqubo yokomisa.Oku kubandakanya ukomisa ukucutheka, ukomisa ukomelela, kunye nokomisa ubuntununtunu.

Ukomisa ukushwabana kubhekiselele ekucuthekeni kodongwe lwe-kaolin emva kokuphelelwa ngamanzi emzimbeni nokomisa.Udongwe lweKaolin luvamise ukuba luphelelwe ngamanzi kwaye lomiswe kumaqondo obushushu aphakathi kwe 40-60 ℃ ukuya kuthi ga kwi 110 ℃.Ngenxa yokukhutshwa kwamanzi, umgama we-particle ufinyeziwe, kwaye ubude kunye nomthamo wesampuli zixhomekeke kwi-shrinkage.Ukomisa i-shrinkage yahlulwe ibe yi-linear shrinkage kunye ne-volumetric shrinkage, echazwe njengepesenti yokutshintsha ubude kunye nomthamo wodaka lwe-kaolin emva kokumisa kubunzima obuqhubekayo.Ukucutheka ukomisa kwe-kaolin ngokuqhelekileyo ku-3-10%.Ubukhulu be-particle size, inkulu indawo ethile yendawo, ingcono iplastiki, kwaye i-shrinkage enkulu yokomisa.Ukucutheka kohlobo olufanayo lwekaolin kuyahluka ngokuxhomekeke kubungakanani bamanzi abongeziweyo.

I-Ceramics ayinayo kuphela imfuneko engqongqo yeplastiki, ukunamathela, ukomisa ukushwabana, ukomisa amandla, i-sintering shrinkage, iipropati ze-sintering, ukumelana nomlilo, kunye nokudubula kobumhlophe be-kaolin, kodwa kubandakanya iipropati zekhemikhali, ngakumbi ubukho bezinto ze-chromogenic ezifana nentsimbi, i-titanium, ubhedu, i-chromium, kunye ne-manganese, ezinciphisa ubumhlophe besithuba sokudubula kwaye zivelise amabala.