Ƙananan jikin wuta an bayyana ta lokacin da yawan zafin jiki wanda jikin yumɓu ya tasowa, wanda aka ɗauka ana ɗauka a tsakanin macizai 09 da 02 (1700 da 2000 2000 F ko 927 ° da 1093 ° C). Ƙananan wuta yana da kyakkyawar aiki kuma yawanci ba zai raguwa ba, ya yi amfani da shi, ko kuma ya yi amfani da shi sosai. Duk da haka, sun kasance mai sauƙi wanda ke nufin cewa basu da tsayi kuma zasu sha ruwa.
Ƙananan wuta ya kasu kashi biyu kamar yadda launin su ke yi bayan fashewa. Ƙungiyoyin launin launin duhu (mafi yawan ja), da kuma fararen fata da kuma yumɓu.
01 na 02
Red ko Dark Earthenware Clays
alexpaillon / Getty Images Ƙunƙasa mai yumɓu mai yumɓu zai iya samuwa daga launin orange-ja zuwa launin ruwan kasa, tare da ja zama mafi yawancin. Sanyinsu yana samuwa daga launi mai ɗaukar baƙin ƙarfe sunyi amfani da jikin su. Iron din da yake cikin jikin yumbu yana aiki ne a matsayin mai laushi, wanda zai taso da yumbu a yanayin zafi maras kyau. Earthenware yana narkewa a irin yanayin yanayin zafi wanda basu iya samun haske sosai. Saboda wannan, ƙananan yanki zai ci gaba da sha ruwa. A saboda wannan dalili, aikin ware yana kusan ko'ina. Ya dace, ba dole ba ne a zaba zazzage masu guba ba, duk da haka, kamar yadda wasu kyamarori ma suna da karfin gaske a wannan zafin jiki.
02 na 02
White ko Buff Earthenware Clays
Saboda karuwa da yawa a cikin ƙananan zafin jiki, an gina sababbin nau'o'in ƙwayoyin wuta masu ƙananan wuta. Wadannan jikin yumbura an ba da lakabi "earthenware" saboda gaskiyar cewa suna girma a cikin tashar zafin jiki.
Manufar dabarun fararen yumɓun fata ya fara komawa zuwa Turai, lokacin da masana'antun katako suka fara ƙoƙari su biyan takalmin dabbar da aka samu daga gabashin Asiya. Wadannan jikin yumbu suna buƙatar adadi mai yawa masu yawan ruwa, don rage yawan zafin jiki na ragewa don inganci mai tsabta na kaolin da ƙwallon ball. Kwayoyin fata na yau sun hada da kusan rabin yumbu kuma rabi ya kara mai wakilci, irin su talc.