Ƙwaƙwalwar iyo wani nau'i ne na ƙwallon ƙuda mai zurfi wanda zai iya shawagi a saman ruwa.Fari ne mai launin toka, sirara da sarari a bango, nauyi mai nauyi sosai, tare da nauyin naúrar 720kg/m3 (nauyi) da 418.8kg/m3 (haske), girman barbashi kusan 0.1mm, rufaffiyar kuma santsi a saman, ƙarami a ciki. thermal watsin, da wuta juriya ≥ 1610 ℃.Yana da kyau kwarai zafin jiki refractory, yi amfani da ko'ina wajen samar da haske castables da man hakowa.Abubuwan sinadaran na katako mai iyo galibi silicon dioxide da aluminum oxide.Yana da halaye da yawa, irin su barbashi masu kyau, m, nauyi mai sauƙi, ƙarfin ƙarfi, juriya mai ƙarfi, juriya mai zafi, ƙarancin zafi, rufi da jinkirin harshen wuta.Yana daya daga cikin albarkatun kasa da ake amfani da su sosai a masana'antar juriya ta wuta.

Gabatarwa

Kyakkyawan aiki da aikace-aikacen beads masu iyo

Babban juriya na wuta.Babban sinadarai na katako mai iyo sune silicon da aluminum oxides, wanda silicon dioxide ya kai kusan 48-66% kuma aluminum oxide kusan 26-36%.Domin ma'aunin narkewar silicon dioxide 1720 ℃ da na aluminum oxide ne 2060 ℃, dukansu biyu ne high refractories.Saboda haka, dutsen dutse mai iyo yana da juriya na wuta sosai, wanda gabaɗaya ya kai 1620-1800 ℃, yana mai da shi kyakkyawan aiki mai ƙarfi.Hasken nauyi, rufin thermal.Katangar dutsen dutsen da ke iyo bakin ciki ce kuma maras kyau, kuma kogon ba shi da ɗan lokaci.Akwai ƙananan adadin iskar gas (N2, H2, CO2, da dai sauransu), kuma yanayin zafi yana da jinkirin gaske.Saboda haka, beads masu iyo ba kawai nauyi ba ne (250-450 kg / m3).Girman barbashi na halitta na beads masu iyo shine 1-250 microns.Ana iya amfani da beads kai tsaye ba tare da niƙa ba.Lalacewar na iya biyan bukatun samfuran daban-daban.Sauran kayan rufin zafi masu nauyi gabaɗaya suna da girman girman barbashi (kamar perlite).Idan an niƙa su, za a ƙara ƙarfin ƙarfin, kuma za a rage yawan zafin jiki mai zafi.A wannan yanayin, beads suna da fa'ida.Kyakkyawan rufin lantarki.Ƙunƙarar da ke iyo bayan an zaɓi ƙwanƙwasa maganadisu abu ne mai rufewa tare da kyakkyawan aiki kuma baya gudanar da wutar lantarki.Gabaɗaya, juriya na insulators yana raguwa tare da karuwar zafin jiki, yayin da na beads masu iyo yana ƙaruwa tare da karuwar zafin jiki.Wannan fa'idar ba ta da wasu kayan rufewa.Sabili da haka, ana iya amfani dashi don yin samfuran insulating a ƙarƙashin yanayin zafi mai girma.