Mene ne manyan abubuwan da ke shafar juriyar zafin jiki na yumburan alumina?

A matsayin muhimmin ɓangare na fannin kariyar lalacewa ta masana'antu, juriyar zafin jiki mai yawa nayumburan aluminaya kasance ɗaya daga cikin abubuwan da kowa ke mayar da hankali a kai. Musamman a wasu yanayi na aiki tare da manyan canje-canjen zafin jiki ko yanayin zafi mai yawa, zaɓar nau'in yumbu mai jure lalacewa da kuma hanyar shigarwa daidai suna da matuƙar mahimmanci don samar da kayayyaki lafiya da adana kuzari da kuma ingantaccen aiki. To menene manyan abubuwan da ke shafar juriyar zafin jiki na yumbu mai jure lalacewa?

1. Tsarkakakkiyar kayan yumbu na alumina: Tukwanen da muke yawan magana a kansu galibi suna nufin tukwanen da ke jure wa lalacewa ta alumina, kuma tsarkin alumina yana da tasiri kai tsaye kan juriyar zafi mai yawa na tukwanen da ke jure wa lalacewa. Tukwanen da ke jure wa lalacewa ta alumina suna yin siminti a zafin jiki mai zafi na 1700°C kuma suna da juriya mai kyau ta zafin jiki mai yawa. Duk da haka, a aikace-aikacen gaske, idan tsarkin alumina bai yi yawa ba, tukwanen za su ƙunshi wasu abubuwa. Waɗannan kayan za su nuna halaye daban-daban na faɗaɗa zafi da matsewa a yanayin zafi mai yawa ko sanyaya kwatsam da dumama saboda halaye daban-daban. Wannan yanayin ba a bayyane yake ba lokacin da zafin jiki ke canzawa a hankali ko kuma kewayon canji ya yi ƙanƙanta, amma lokacin da zafin jiki ke canzawa sosai ko kuma ya haɗu da zafin jiki mai zafi na digiri 800, 900 ko ma digiri 1,000, wannan canjin zai yi babban tasiri, kuma ya zama dole a zaɓi tukwanen da ke da tsarki mai girma, kamar tukwanen alumina na Jingcheng na K99.

2. Hanyar Shigarwa: Hanyar shigarwa ta yumbu mai jure lalacewa ita ma tana da tasiri kai tsaye kan juriyar zafin jiki na yumbu. Misali, lokacin da ake amfani da manne na yumbu na yau da kullun don manna yumbu, matsakaicin zafin da zai iya jurewa shine kimanin 150°C. Manna na yumbu na musamman na Jingcheng zai iya ƙara wannan zafin zuwa 350°C, amma da zarar an wuce zafin manne, ɗanɗanon manne zai ragu sosai, wanda zai iya sa yumbu ya faɗi cikin sauƙi. Idan aka kwatanta da hanyar mannewa, hanyar walda da yumbu da aka sanya ta ramin dovetail na iya jure zafin jiki mai yawa na 750°C. Bututun yumbu mai jure lalacewa wanda aka ƙirƙira shi da Jingcheng wanda aka ƙirƙira kuma aka samar zai iya raunana iyakancewar hanyar shigarwa akan juriyar zafin jiki na yumbu.

3. Kayan da aka haɗa da yumbu: Sau da yawa ana amfani da yumbu tare da wasu kayan aiki, kamar ƙarfe, roba, da sauransu. A wannan yanayin, idan muka yi la'akari da juriyar zafi mai yawa na yumbu mai jure lalacewa, dole ne mu yi la'akari da juriyar zafi na kayan haɗin. Misali, kayan haɗin roba na yumbu ba su dace da amfani a yanayin zafi mai yawa ba.

A taƙaice, akwai manyan abubuwa guda uku da ke shafar juriyar zafin jiki mai yawayumbu masu jure lalacewa, wato tsarkin kayan yumbu da kansu, hanyar shigarwa na yumbu, da kayan da aka haɗa da yumbu. Waɗannan abubuwan suna buƙatar a yi la'akari da su sosai lokacin zaɓar yumbu masu jure lalacewa.