Yadda za a juya yumɓu mai laushi cikin ƙananan dutse
Yin amfani da yumbu ya canza shi daga ƙasƙantar da kansa, farawa mai laushi cikin sabon abu mai mahimmanci, yumbu. Kasuwanci suna da wuya, mai karfi da kuma kama da wasu hanyoyin da za a dutse. Kwayoyin tukwane sun wanzu har dubban shekaru, duk saboda yakin ya hadu da wuta.
Yawan zafin jiki da ake buƙatar canza yumɓu mai laushi a cikin yumbu mai wuya yana da yawa kuma yawanci yana bayar da shi. Ba za ku iya yin tukunyar wuta ba a cikin tanda na gida saboda tanda ba su tashi zuwa yanayin yanayin zafi fiye da 1500 F wanda kake buƙatar yin yumbu ba.
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Mene Ne Abin Gwaji?
Maremagnum / Photodisc / Getty Images Jarabawa shine hanyar kawo yumbu da gilashi zuwa babban zafin jiki. Makasudin karshe shi ne ya ƙona wannan abu har zuwa ma'anar cewa yumbu da glazes "balagagge" - wato, sun kai matakin mafi kyau na melting. Ga idon ɗan adam, tukwane da sauran yumbu abubuwa ba su yi kama da melted; da narkewar da ke faruwa a kan matakin kwayoyin.
Ana aiwatar da wannan tsari ta hanyar matakai biyu: bisking firing and glazing firing.
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Bisque Firing
Fitawar Biski tana nufin lokaci na farko tukunyar gurasar da aka saba sababbin, ko greenware , tafi ta hanyar zafin jiki mai zafi. An yi shi ne don ingantawa, wanda ke nufin, "don canza shi kamar gilashi," zuwa ma'ana cewa tukunyar zai iya samun haske a kan fuskar.
Greenware abu ne mai banƙyama. Don fara, dole ne ya zama busassun ƙasa. Bayan haka, dole ne a ɗora shi cikin kiln tare da kulawa mai yawa. An rufe kiln kuma zafin jiki yana farawa.
Tsarin jinkirin zafin jiki yana da muhimmanci. A lokacin da aka fara buga bishiya , ana fitar da ruwan na karshe daga yumbu. Idan zafi yayi sauri, ruwan ya juya cikin tururi yayin da yake cikin jikin yumbu , wanda zai iya sa yumbu ya fashe.
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Clay Transformation a cikin Bisque FiringLokacin da kiln ya kai kimanin 660 F, ruwan da za a haƙa da ruwa zai fara tashi. A lokacin da yumbu ya kai 930 F, yumbu ya zama cikakke. A wannan lokaci, yumbu ya canza har abada; yanzu shi yumbu abu ne.
Kwancen biski ya ci gaba har sai da kiln ya kai kimanin 1730 F. A wannan zafin jiki, tukunya ya rushe, wanda ke nufin an canza shi zuwa matsayin cewa ba shi da nakasa yayin da yake ci gaba da kasancewa a cikin ƙuƙwalwa don karɓar aikace-aikace na glazes.
Bayan an kawo yawan zazzabi da ake so, an kashe kiln. Rawan sanyi yana da jinkiri don kaucewa kullun tukwane saboda damuwa daga canjin canji. Bayan kiln yana da kyau, an buɗe shi kuma an cire sabon "bisqueware".
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Glaze Firing
Ceramic glaze wani Layer mara kyau ne ko shafi da ake amfani da shi don bisqueware don launi, kayan ado, ko kayan ruwa. Domin yumbura, kamar yumɓu mai yumɓu, don riƙe ruwa, yana buƙatar haske.
Potters suna amfani da takarda na glaze zuwa bisqueware, bar shi a bushe, sa'an nan kuma kaddamar da shi a cikin kiln don mataki na karshe, firing firze.
An cire kayan da aka kalli a cikin kiln don yin fashewa. Kiln yana cike da hankali a kan yawan zafin jiki mai dacewa don kawo yumbu da giraguwa zuwa balagaguwa sannan a sake kwantar da hankali a hankali. Sai kawai bayan kiln ya sanyaya, za'a iya buɗe kull din kuma an sauke shi. Wannan karo na biyu na harbe-harbe ya haifar da canji mai ban mamaki a cikin yumbu da kyama. Kwayoyi suna canzawa daga wani abu mai laushi, mai banƙyama ga wanda yake da dutsen-wuya kuma yana da damuwa ga ruwa da lokaci.
Faɗakarwa: Kada ka bari tukwane su taɓa yayin da kiln ko glazes za su narke tare, yin gyaran da tukwane har abada.