Udongwe olupeyintiweyo

Udongwe olupeyintiweyo lubhekisa kudongwe olukhazimlisiweyo olu-orenji olubomvu olungenanto, oluboniswe ngebala lendalo leminerali, i-ocher kunye ne-manganese oxide njengezinto ezinemibala, kwaye emva koko yafakwa eziko. Kwi-orenji-red carcass inikezela ipateni enhle ye-ocher ebomvu, emnyama, emhlophe, kunye nemibala eyahlukahlukeneyo, eyenza ingqayi yobumba kunye neqondo eliphezulu lobunye phakathi kwepateni kunye nokumila kwesitya, kunye nokufezekisa umphumo wokuhombisa kunye nobuhle.

Udongwe olupeyintiweyo lwenziwe ngokugqwesileyo, ubukhulu becala ubumba lodongwe, olunolwakhiwo olucekethekileyo, ngoko ayisositya esisebenzayo kuphela, kodwa sinexabiso eliphezulu lobugcisa. Ekubeni umbala upeyintwe ngaphambi kokuba udutyulwe, emva kokugcadiswa kwezinto ezenziwe ngodongwe, umbala kunye netayara lodongwe zidityaniswe ngokusondeleyo kwaye akulula ukuwa. Uhlobo lomzobo lunokwahlulwa ngokubanzi kwiindidi ezimbini: iipateni kunye nemifanekiso.

Okokuqala, imeko ephambili yobugcisa yokuveliswa kwe-faience kukuqonda i-pigments yendalo yamaminerali. Njenge-pigment ye-faience, akufuneki ibole xa ifakwe kwi-kiln ephezulu yokushisa, njenge-hematite enomxholo ophezulu unokumelana nokushisa okuphezulu. Kwakhona kuyimfuneko ukuqonda umthetho wokuphuhliswa kombala weeminerali, luhlobo luni lwe-pigment oluya kuba lubomvu okanye lube mnyama emva kokudubula, ukwenzela ukuba lusetyenziswe ngokukhululekile ukuvelisa umbala ofanelekileyo. I-pigment ingasetyenziselwa kuphela emva kokucutshungulwa kunye nokuhlanjululwa, kwaye ubukhulu bepowder kunye noxinzelelo lwe-dilution ngamanzi lunenkqubo yolwazi oluqhubekayo kunye nobuchule bokusebenza;

Okwesibini, umphezulu we-ceramic blank kufuneka ufikelele kwisigqibo esithile, kwaye i-pigment ingangena kwi-ceramic tire. Oku kufuna ukukhangela ngokucophelela kunye nokuhlamba udongwe, kunye nokupholisa ngokuphindaphindiweyo kwetafile emva kokuba i-billet yenziwe. Uninzi lweengqayi zomdongwe ezipeyintiweyo kwizinto ezifunyenwe kwizinto zakudala ziyingqayi yodongwe, kunye neengqayi zesanti ezifana nenkcubeko yaseXindian inomphezulu obuthathaka. Umzimba ophambili wodongwe lwenkcubeko yaseDadiwan yingqayi entle yesanti, kodwa umphezulu wempahla uqatywe ngomaleko we-argillaceous;

Okwesithathu, ubushushu bomdongwe buphezulu, kokukhona ukuqina kwe-pigment kunamandla kwaye kunamandla okuhombisa. Xa ukudubula kwe-faience kukhula ukuya kwinqanaba elithile, abantu ngokuthe ngcembe batshintsha ubume be-pottery baln kwaye bandise amandla okutywinwa kwegumbi le-kiln ukuphumeza isiqinisekiso senkqubo yokudubula yokuvelisa i-faience pottery.