Gukoresha Amatafari ya Corundum Amatafari muri Float Glass Gushonga Itanura

Amatafari ya corundumzashongeshejwe alumina mu itanura ryamashanyarazi hanyuma zijugunywa muburyo bwihariye bwuburyo bwihariye, bwometse hamwe nubushuhe, hanyuma butunganywa kugirango ubone ibicuruzwa byifuzwa. Igikorwa rusange cyo kubyaza umusaruro ni ugukoresha alumina isukuye cyane (hejuru ya 95%) hamwe n’inyongeramusaruro nkeya, ugashyira ibiyigize mu itanura ry’amashanyarazi, hanyuma ukabijugunya mu bishushanyo mbonera nyuma yo gushonga ku bushyuhe buri hejuru ya 2300 ° C. , hanyuma ubigumane ubushyuhe Nyuma ya annealing, irasohoka, hanyuma ikuramo ubusa ihinduka igicuruzwa cyuzuye cyujuje ibisabwa nyuma yubukonje bukwiye, mbere yo guterana no kugenzura.

Amatafari ya corundum yakoreshejwe agabanijwemo ubwoko butatu ukurikije uburyo butandukanye bwa kristu nubunini bwa alumina: icya mbere ni α-Al2O3 nkicyiciro nyamukuru cya kirisiti, cyitwa amatafari ya α-corundum; icya kabiri ni α-Al2 O 3 na β-Al2O3 ibyiciro bya kristu biri mubice bimwe, aribyo bita αβ amatafari ya corundum; ubwoko bwa gatatu ni β-Al2O3 ibyiciro bya kristu, bita β corundum amatafari. Amatafari ya corundum yahujwe akunze gukoreshwa mumatanura yikirahure areremba ni ubwoko bwa kabiri nubwa gatatu, aribwo amatafari ya αβ corundum n'amatafari ya corundum. Iyi ngingo izibanda kumiterere yumubiri na chimique yamatafari ya αβ corundum yamatafari hamwe n amatafari ya corundum no kuyashyira mubikorwa byo gutanura ibirahure bireremba.

1. Isesengura ryimikorere yamatafari ya corundum

1. 1 Amatafari yahujwe αβ corundum

Amatafari yakoreshejwe αβ corundum agizwe na 50% α-Al2 O 3 na β-Al 2 O 3, kandi kristu ebyiri zirahujwe kugirango zibe imiterere yuzuye, ifite imbaraga zikomeye zo kurwanya ruswa. Kurwanya ruswa ku bushyuhe bwo hejuru (hejuru ya 1350 ° C) ni bibi cyane ugereranije n’amatafari ya AZS yahujwe, ariko ku bushyuhe buri munsi ya 1350 ° C, kurwanya kwangirika kwayo ku kirahure cyashongeshejwe bihwanye n’amatafari ya AZS yahujwe. Kuberako idafite Fe2 O 3, TiO 2 nibindi byanduye, icyiciro cyikirahure cya matrix ni gito cyane, kandi ibintu byamahanga nkibibyimba ntibishobora kubaho mugihe bihuye nibirahure byashongeshejwe, kugirango ikirahuri cya matrix kitazanduzwa. .

Amatafari ya αβ yamashanyarazi arakomeye cyane muri kristu kandi afite imbaraga zo kurwanya ruswa yangirika munsi yikirahure cyashongeshejwe munsi ya 1350 ° C, bityo zikoreshwa cyane muri pisine ikora ndetse no hejuru y’itanura ryashongesheje ibirahure, mubisanzwe mumesa, amatafari yiminwa, amatafari y amarembo, nibindi. Amatafari ya corundum yakoreshejwe kwisi yakozwe neza na Toshiba yo mu Buyapani.

1.2 Amatafari ya corundum

Amatafari yakoreshejwe β-corundum agizwe hafi 100% β-Al2 O 3, kandi afite isahani nini isa na β-Al 2 O 3 ya kristu. Kinini kandi ntigifite imbaraga. Ariko kurundi ruhande, ifite imbaraga zo guhangana cyane, cyane cyane irerekana ruswa irwanya cyane imyuka ya alkali ikomeye, bityo ikoreshwa muburyo bwo hejuru bwitanura ryibirahure. Ariko, iyo ishyutswe mukirere kirimo alkali nkeya, izitwara hamwe na SiO 2, kandi β-Al 2 O 3 izahita ibora kandi itume kugabanuka kwijwi bitera gucikamo ibice, bityo bikoreshwa ahantu kure cyane. gusasa ibirahuri bibisi.

1.3 Imiterere yumubiri nubumashini byahujwe αβ na β corundum amatafari

Ibikoresho bya chimique byahujwe α-β na β amatafari ya corundum ni Al 2 O 3, itandukaniro ahanini riri mubice bigize kristu, kandi itandukaniro rya microstructure riganisha ku itandukaniro ryimiterere yumubiri na chimique nkubucucike bwinshi, kwaguka kwinshi coefficient, n'imbaraga zo kwikuramo.

2. Gukoresha amatafari ya corundum yahujwe mumatanura ashonga

Haba hepfo hamwe nurukuta rwa pisine birahuye neza na kirahure. Kubice byose bihura neza nibirahuri byikirahure, umutungo wingenzi mubintu byangiritse ni ukurwanya ruswa, ni ukuvuga ko nta reaction yimiti ibaho hagati yibintu byangiritse namazi yikirahure.

Mu myaka ya vuba aha, iyo usuzumye ibipimo ngenderwaho byibikoresho byavunitse byahujwe no guhura n’ikirahure cyashongeshejwe, usibye ibigize imiti, ibipimo by’umubiri n’imiti, hamwe n’ibigize imyunyu ngugu, hagomba gusuzumwa ibipimo bitatu bikurikira: indangagaciro yo kurwanya isuri, imvura yaguye indangagaciro ya bubble hamwe nigipimo cyerekana kristu.

Hamwe nibisabwa byujuje ubuziranenge bwikirahure hamwe nubushobozi bwinshi bwo gukora itanura, gukoresha amatafari yamashanyarazi yahujwe bizaba byinshi. Amatafari yahujwe akunze gukoreshwa mu ziko ryo gushonga ibirahure ni urukurikirane rwa AZS (Al 2 O 3 -ZrO 2 -SiO 2) amatafari yahujwe. Iyo ubushyuhe bwamatafari ya AZS buri hejuru ya 1350 ℃, kurwanya kwangirika kwayo gukubye inshuro 2 ~ 5 kurenza α β -Al 2 O 3 amatafari. Amatafari yakoreshejwe αβ corundum agizwe cyane na α-alumina (53%) na β-alumina (45%) ibice byiza, birimo agace gato k'ikirahure (hafi 2%), yuzuza imyenge iri hagati ya kristu, hamwe nubuziranenge bwinshi, kandi irashobora gukoreshwa nko gukonjesha igice cyamatafari yurukuta hamwe no gukonjesha igice cyo hasi pavement Amatafari n'amatafari adoda nibindi.

Ibigize imyunyu ngugu ya αβ corundum yamatafari arimo gusa ikirahure gito cyibirahure, bitazinjira kandi bihumanya amazi yikirahure mugihe cyo kuyikoresha, kandi bifite imbaraga zo kurwanya ruswa kandi birwanya ubushyuhe bwo hejuru bwo hejuru munsi ya 1350 ° C. Nibwo gukonjesha igice cy'ikirahure gishonga. Nibikoresho byiza byo kwangirika kurukuta rwa tank, hasi ya tank no kumesa ibirahure bireremba. Mu mushinga wo gukora ibirahure bireremba hejuru, amatafari ya αβ corundum yahujwe akoreshwa nkamatafari yurukuta rwa pisine y igice gikonjesha cy itanura ryikirahure. Mubyongeyeho, amatafari ya αβ corundum yahujwe nayo akoreshwa mumatafari ya kaburimbo no gupfuka amatafari ahuriweho mugice cyo gukonjesha.

Amatafari β corundum amatafari nigicuruzwa cyera kigizwe na β -Al2 O 3 kristaliste yuzuye, irimo 92% ~ 95% Al 2 O 3, gusa munsi yikirahure kiri munsi ya 1%, kandi imbaraga zayo zubatswe ntizifite intege nke bitewe na latitike irekuye. . Hasi, ikigaragara kigaragara ni munsi ya 15%. Kubera ko Al2O3 ubwayo yuzuyemo sodium iri hejuru ya 2000 ° C, irahagaze neza kurwanya imyuka ya alkali ku bushyuhe bwinshi, kandi ubushyuhe bwayo nabwo ni bwiza. Ariko, iyo uhuye na SiO 2, Na 2 O ikubiye muri β-Al 2 O 3 irabora kandi ikora na SiO2, kandi β-Al 2 O 3 ihinduka byoroshye α-Al 2 O 3, bikavamo ubwinshi kugabanuka, gutera ibice no kwangirika. Kubwibyo, birakwiriye gusa kububatswe kure yumukungugu uguruka wa SiO2, nkuburyo bwububiko bwa pisine ikora yitanura ryikirahure, spout inyuma yakarere gashonga hamwe na parapeti yegereye, itanura rito hamwe nibindi bice.

Kuberako idakora hamwe na oxyde ya alkali ihindagurika, ntihazabaho ibikoresho bishongeshejwe biva kumatafari kugirango byanduze ikirahure. Mu itanura rireremba hejuru yikirahure, kubera kugabanuka gutunguranye kwinjirira ryumuyoboro utemba wigice gikonje, biroroshye gutera kondegene yumuyaga wa alkaline hano, bityo umuyoboro utemba hano ugizwe namatafari yahujwe β amatafari arwanya kwangirika hamwe na alkaline.

3. Umwanzuro

Ukurikije imiterere myiza yamatafari ya corundum yahujwe mubijyanye no kurwanya isuri yikirahure, kurwanya ifuro, no kurwanya amabuye, cyane cyane imiterere yihariye ya kirisiti, ntabwo yangiza ikirahure cyashongeshejwe. Hano haribikorwa byingenzi mubisobanuro byumukandara, igice cyo gukonjesha, kwiruka, itanura rito nibindi bice.