01 Sbanyere Corundum
Sintered corundum, nke a makwaara dị ka sintered alumina ma ọ bụ alumina ọkara a wụrụ awụ, bụ clinker refractory nke sitere na alumina calcined ma ọ bụ alumina nke ụlọ ọrụ mmepụta ihe dị ka akụrụngwa, gbadara n'ime bọọlụ ma ọ bụ ahụ ndụ ndụ ndụ, ma gbanye ya na okpomọkụ dị elu nke 1750 ~ 1900 ° C.
Sintered alumina nwere ihe karịrị 99% nke aluminom oxide bụ nke a na-ejikarị corundum mara mma jikọtara ọnụ. Ọnụego ikuku gas dị n'okpuru 3.0%, njupụta olu ruru 3.60% / cubic mita, refractoriness dị nso na ebe mgbaze nke corundum, ọ nwere nkwụsi ike olu dị mma na nkwụsi ike kemịkalụ na okpomọkụ dị elu, ọ dịghịkwa emebi site na ibelata ikuku, iko a wụrụ awụ na ọla a wụrụ awụ. , ezi n'ibu ike na-eyi na-eguzogide na nkịtị okpomọkụ na elu okpomọkụ.
02Corundum jikọtara ọnụ
Fused corundum bụ corundum wuruwuru site na agbaze ntụ ntụ alumina dị ọcha n'ime ọkụ ọkụ eletrik na-ekpo ọkụ. Ọ nwere njiri mara nke ebe mgbaze dị elu, ike igwe dị elu, nguzogide ujo dị mma, nguzogide corrosion siri ike na obere ọnụọgụ mgbasawanye linear. Fused corundum bụ akụrụngwa maka imepụta ihe mgbagha pụrụ iche nke ọkwa dị elu. Nke kachasị gụnyere corundum ọcha fused, corundum agba aja aja, corundum sub-ọcha, wdg.
03Corundum White agwakọta
A na-esi na ntụ ntụ alumina dị ọcha na-agbaze ma gbazee na nnukwu okpomọkụ. Ọ na-acha ọcha na agba. Usoro mgbaze nke corundum na-acha ọcha bụ isi usoro nke agbaze na recrystallization nke ulo oru alumina ntụ ntụ, ọ dịghịkwa usoro mbelata. Ọdịnaya Al2O3 erughị 9%, yana ọdịnaya adịghị ọcha dị obere. Isi ike dị ntakịrị karịa corundum aja aja na ike siri ike dị ntakịrị ala. A na-ejikarị eme ihe abrasive, ceramics pụrụ iche na ihe mgbagha dị elu.
04Brown Corundum jikọtara ya
A na-eme corundum agba aja aja fused sitere na alumina bauxite dị elu dị ka isi akụrụngwa wee gwakọta ya na coke (anthracite), a na-agbazekwa ya na ọkụ ọkụ eletrik na-ekpo ọkụ na okpomọkụ karịa 2000 ° C. Corundum agba aja aja nwere nnukwu udidi na ike siri ike, a na-ejikarị ya eme ihe na ceramik, ihe nkedo ziri ezi na ihe mgbagha dị elu.
05Corundum sub-ọcha
A na-emepụta corundum subwhite site na ọkwa electromelting pụrụ iche ma ọ bụ ọkwa mbụ bauxite n'okpuru mbenata ikuku na ọnọdụ a na-achịkwa. Mgbe ị na-agbaze, gbakwunye ihe na-ebelata ihe (carbon), onye na-edozi ihe (nchịkọta ígwè) na onye na-emepụta ihe (ọnụọgụ ígwè). N'ihi na ihe mejupụtara kemịkal ya na akụrụngwa anụ ahụ dị nso na corundum ọcha, a na-akpọ ya corundum sub-white. Nnukwu njupụta ya dị elu karịa 3.80g/cm3 na porosity ya pụtara erughị 4%. Ọ bụ ihe dị mma maka imepụta ihe mgbagha dị elu na ihe ndị na-eguzogide iyi.
06Chrome corundum
Na ndabere nke corundum na-acha ọcha, a na-agbakwunye 22% chromium, a na-eme ya site na ịgbaze na ọkụ ọkụ eletrik. Agba ahụ bụ odo odo-acha ọbara ọbara. Isi ike dị ntakịrị elu karịa corundum aja aja, yiri corundum ọcha, na microhardness nwere ike ịbụ 2200-2300Kg / mm2. Ihe siri ike dị elu karịa nke corundum na-acha ọcha na ntakịrị ala karịa nke corundum agba aja aja.
07Zirconium Corundum
Zirconium corundum bụ ụdị corundum wuru ewu nke a na-eme site na ịgbaze alumina na zirconium oxide na okpomọkụ dị elu na ọkụ ọkụ eletrik, na-egbuke egbuke, na-eme ka ọ dị jụụ, na-egwepịa na nyocha. Akụkụ kristal bụ isi nke zirconium corundum bụ α-Al2O3, usoro kristal nke abụọ bụ baddeleyite, enwerekwa obere akụkụ nke iko. Ọdịdị kristal na nhazi nke zirconium corundum bụ ihe dị mkpa na-emetụta àgwà ya. Zirconium corundum nwere njirimara nke isi ike dị elu, ịdị mma siri ike, ike dị elu, nnukwu udidi, ike egweri siri ike, akụrụngwa kemịkalụ kwụsiri ike, yana ezigbo nguzogide ujo. A na-ejikarị ya eme ihe na ụlọ ọrụ abrasives na refractory. Dabere na ọdịnaya zirconium oxide ya, enwere ike kewaa ya na ọkwa ngwaahịa abụọ: ZA25 na ZA40.
Oge nzipu: Feb-20-2024
