Guud ahaan, leben aluminium sare ah waa in aan loo isticmaalin foornada jawiga alkaline. Sababtoo ah dhexdhexaadinta alkaline iyo acidic waxay sidoo kale leeyihiin koloriin, waxay geli doontaa lakabyada qoto dheer ee lebenka aluminiumka sare ee qaabka gradient, taas oo keeni doonta lebenka refractory inuu burburo.
Lebenka sare ee aluminium ka dib nabaadguurka jawiga alkaline waa dildilaac siman. Nabaadguurku wuxuu ka kooban yahay shidaal cawlan, gaas gubanaya, iyo qaybo alkaline ah oo ku jira alaabada kale. Qaybahani waxay la falgalaan wajiga galaaska iyo dhagaxa mullitiga ah ee lebenka aluminium sare.
Leben-aluminium-sare oo daxalaystay alkaline ayaa ka soo muuqan doona dusha sare. Gubashada xeryahooda gaaska waxay sidoo kale dhalin doonaan nitrate-ka soo jiidashada, kala-saarista farqiga lebenka sare ee aluminium; falcelinta glaciers-ku waxay samayn doonaan weji cusub oo adag. Marka nitriles-ka nasiibka la'aanta ah ee biyo la'aanta ah ay la xiriiraan vagram-ka la soo saaray, falcelinta ka-hortagga uumiga ayaa dhacaya, taasoo keenaysa in lebenka aluminiumka sare uu dillaaco ama dhaco. Intaa waxaa dheer, daxalka kulaylku sidoo kale aad ayuu u daran yahay daxalka lebenka refractory. Sababtoo ah nabaad guurka Fang quartz, Skywine, iyo quartz crystal silica. Isticmaalka foornada dabka ayaa ka sii darnaan doona baasto qabow.
Dhaawaca lebenka silikoon dioxide sidoo kale waa mid aad u daran. Silica waxay ku milmaysaa leben sare oo aluminium ah oo dareere ah. Nitrate-ka nasiibka leh ee dhalaalaysa iyo dhagxaanta silikoon ee dhibicda dhalaalaysa ee hooseeya waxay sameeyaan xaddi badan oo weji dareere ah. Mar kasta oo ay ku jirto maadada silica ee lebenka, ayaa sii badanaysa qadarka heerka dareeraha. Wejiyada dareeraha xad dhaafka ah waxay wax u dhimi doonaan lebenka aluminiumka sare. Silikoon silikoon ayaa sidoo kale waxyeelo u geysata lebenka. Sababtoo ah silica bilaashka ah waa la wada baabbi'iyey, marxaladda Mo Lai Shi waa la baabi'in doonaa. Ka dib jawaabta nitrate-ka leefleefa iyo dhagaxa mullite waxay sababi kartaa balaadhinta burburka lebenka sare ee aluminium.
Lebenka aluminiumka sare leh waxay leeyihiin iska caabin heer sare ah oo heerkul sare ah iyo xoqid. Waxaa si weyn loogu isticmaalaa dahaarka foornooyinka warshadaha ee kala duwan, sida foornooyinka qaraxa, foornooyinka hawada kulul, iyo kilnnada wareega. Si kastaba ha ahaatee, jawiga alkaline foornada warshadaha, isticmaalka lebenka aluminium sare waa xaddidan yahay.
Sifooyinka kiimikaad ee lebenka aluminiumka ah ee sarreeya ayaa ka dhigaya inay iska caabiyaan saameynta jawi acidic ah. Si kastaba ha ahaatee, jawiga alkaline-ka sareeyo, sida foornada sibidhka ama foornada dhalada, lebenka aluminiumka sare ayaa ka falcelin doona oksaydhyada birta ah ee alkali, taasoo keenaysa in lebenku ay dillaacaan oo ay burburaan. Dareen-celinta u dhaxaysa lebenka Al2O3 iyo oksaydhyada birta alkali waxay caadi ahaan keentaa samaynta jel alkali aluminosilicate, kaas oo leh barta dhalaalaysa hoose oo si fudud u dhex qulquli kara dildilaaca.
Si loo xalliyo dhibaatadan, dhowr xeeladood ayaa la adeegsaday si loo hagaajiyo caabbinta lebenka aluminiumka sare ee deegaanka alkaline. Hal xal ayaa ah in lagu daro magnesia ama spinel lebenka aluminium ee sare. Magnesia ama spinel waxay ka falcelin doontaa oksaydhyada birta alkali si ay u sameeyaan wejiyada laf dhabarta, taas oo kor u qaadi karta iska caabinta leben Al2O3 ee dildilaaca ay keento falcelinta alkali. Xalka kale waa in lagu daboolo daboolka ilaalinta dusha sare ee lebenka aluminiumka ah si looga hortago xiriir toos ah oo lala yeesho deegaanka alkaline.
Marka la soo koobo, lebenyada aluminiumka sare waxay leeyihiin xaddidaad xaddidan oo ku habboon dahaarka foornada warshadaha ee jawiga alkaline. Si kor loogu qaado caabbinta al2O3 leben ee deegaanka alkaline, waxaa lagama maarmaan ah in lagu daro macdano gaar ah ama dahaarka si looga fogaado falcelin waxyeello leh oksaydhyada biraha alkali. Waa muhiim in la doorto alaabta saxda ah ee dahaarka foornada warshadaha si loo yareeyo khataraha iman kara loona badbaadiyo kharashyada.
Waqtiga boostada: Meey-19-2023
