1. Pom meej porosity ntawmcastable refractory khoom
Hauv cov khoom siv refractory, muaj peb yam sib txawv ntawm qhov pores. Qhib pores txhais tau tias yog kaw qhov pores uas qhib rau lwm qhov kawg thiab sib txuas lus nrog lub ntiaj teb sab nraud. Kaw qhov pores txhais tau tias yog qhov pores uas kaw hauv lub cev thiab tsis sib txuas lus nrog lub ntiaj teb sab nraud. cov khoom muaj qhov hws uas tso cai rau cov kua los ntawm lawv ntawm ob sab. Tus nqi thiab kev ua tau zoo ntawm dispersants thiab binders, cov txheej txheem sib tov, ntxiv dej, lub sij hawm ntawm kev co, thiab ntau lwm yam tsis muaj kev cuam tshuam rau lub porosity ntawm refractory castables. Tab sis qhov cuam tshuam ntawm cov ntsiab lus xws li particle loj faib, vibration duration, thiab ua ke.
2. Refractory castable cov ntaub ntawv 'ib txwm kub lub zog
Chav tsev kub compressive zog thiab chav tsev kub flexural zog yog ob pawg tseem ceeb ntawm refractory castables 'chav kub lub zog. Hom thiab ntau npaum li cas ntawm cov ntawv khi yog ib qho tseem ceeb tshaj plaws uas cuam tshuam rau qhov kub thiab txias ntawm cov castables, ntawm lwm cov yam ntxwv xws li grain loj, particle loj thiab gradation, thiab hom thiab tus nqi ntawm binder. Tam sim no, muaj kev tsom mus rau qis-cement, ultra-low-cement, thiab cement-free castables. Cov refractories castables no tuaj yeem siv rau cov khoom kub thiab siv micropowder los ua cov ntawv khi los hloov lossis hloov cov calcium aluminate cement.
3. Castable refractory cov ntaub ntawv nrog siab thermal zog
Refractory castables yuav tsum muaj zog tsis yog nyob rau hauv chav tsev kub xwb, tab sis kuj nyob rau hauv qhov kub thiab txias nyob rau hauv thiaj li yuav ua hauj lwm zoo. high-temperature flexural zog thiab kev ua tau zoo tiag tiag yog kev sib txuas zoo. Nws yog ib qho ntawm cov kev ntsuas tseem ceeb rau kev ntsuas seb nws ua tau zoo npaum li cas. Nws qhov loj me yog cuam tshuam los ntawm cov khoom siv hluav taws xob kub, pleev xim ntawm cov khoom siv raw, txoj kev tsim, tshuaj muaj pes tsawg leeg, tus nqi ntawm impurities, thiab cov qauv. cuam tshuam los ntawm tej yam xws li qauv.
4. Thermal shock tsis kam ntawm refractory castables
Lub thermal shock kuj yog nws lub peev xwm los tiv thaiv qhov kub thiab txias hloov yam tsis muaj kev puas tsuaj. Muaj ntau yam cuam tshuam rau thermal shock kev ua tau zoo ntawm refractories castable cov ntaub ntawv, xws li cov tshuaj muaj pes tsawg leeg ntawm castable nws tus kheej, daim ntawv cog lus lub zog, sab nraud kub, siv lead ua transformation, siv lead ua qauv, thiab nruj ntawm lub internal qauv; Nyob rau tib lub sijhawm, kev sib koom ua ke thiab matrix ntawm refractory castable Composition kuj yog ib qho tseem ceeb cuam tshuam.
5. Slag kuj ntawm refractory txhaj tshuaj
Cov nyhuv yaig ntawm slag ntawm cov qauv yog feem ntau yog qhov tawg ntawm cov refractory castables nto thiab nkag mus rau sab hauv ntawm cov castable, thiab kev nkag mus ntawm cov slag ntawm cov qauv yuav nthuav dav cov tshuaj tiv thaiv qhov tob thiab cheeb tsam, ua rau muaj pes tsawg leeg thiab cov qauv nyob ze. nto ntawm tus qauv kom deteriorate. Ib txheej txheej metamorphic nrog siab solubility yog tsim, yog li ua kom nrawm rau kev puas tsuaj ntawm cov qauv. Yog li ntawd, nyob rau hauv cov ntaub ntawv ntawm tib cov ntaub ntawv, lub microstructure ntawm lub matrix nyob rau hauv cov ntaub ntawv los ua qhov tseem ceeb tshaj plaws txiav txim siab slag kuj ntawm cov khoom.
