Puas tuaj yeem siv silicon carbide composite bricks yog tias lawv tsis hnov mob zoo?
Silicon carbide composite bricks yogrefractory bricksua los ntawm kev sib txuas sib txawv ntawm silicon carbide cov ntsiab lus nrog alumina, suav nrog silica molybdenum cib, silica molybdenum liab cib, sintered silicon carbide cib, thiab lwm yam. Vim hais tias silicon carbide yog tsim rau sintering nyob rau hauv ib tug txo qhov cua, tsis muaj teeb meem. Yog tias muaj cov tshuaj tiv thaiv me me thaum lub sij hawm sintering nyob rau hauv ib qho chaw oxidizing, txheej txheej saum npoo yuav tsis hnov qab.
Yog li puas tuaj yeem siv silicon carbide cib nrog cov tshuaj tiv thaiv tsis zoo?Nws tseem tuaj yeem siv tau, tab sis qhov taw qhia tseem ceeb yog qhov tseem ceeb heev, uas yog lub zog. Yog lub zog ntawmsilicon carbide cibyog qis dua 80MPa, nws tsuas yog siv tau downgraded. Nws tsis tuaj yeem siv rau ntawm qhov kub thiab txias lossis hauv qhov chaw muaj corroded hnyav.
Vim li cas cov txheej txheej ntawm silicon carbide cib tsis hnov mob? TOPOWER hais rau koj tias:
Yog tias tsis muaj cov tshuaj tiv thaiv oxidation rau ntawm qhov chaw ntawm silicon carbide composite cib, los yog tsuas muaj kev hloov pauv me ntsis hauv cov tshuaj tiv thaiv oxidation, thiab cov oxide txheej tsis tuab heev, nws yuav tsis cuam tshuam rau kev siv. Txawm li cas los xij, yog tias oxidation hnyav thiab lub zog tsawg, nws tsis tuaj yeem siv. Tab sis nws yuav tsis muab pov tseg thiab tuaj yeem siv rau ntawm qhov kev pabcuam kub ntawm thawj qib siab alumina cib.
Yog li vim li cas cov txheej txheej ntawm silicon carbide cib tsis hnov mob? Ua ntej, qhov chaw sintering yog tshwm sim los ntawm oxidizing cua. Qhov thib ob, tsis muaj hmoov hlau silicon ntxiv thaum lub sijhawm tsim khoom. Yog tias muaj qhov tsim nyog ntawm cov xim hlau silicon hmoov ntxiv, oxidation ntawm silicon carbide tuaj yeem tiv thaiv.
Tseem muaj qee cov tuam txhab lag luam silicon carbide cib uas ua ntej kho qhov kev tso kawm ntawm lub tsheb kiln thaum cov khoom lag luam ib nrab tau raug sintered, uas yog, cov cib tau muab tso rau hauv ib lub voj voog nyob nruab nrab ntawm lub tsheb kiln, thiabsiab alumina cibmuab tso rau ib ncig ntawm lawv. Qhov no ua rau cov cua sintering txo qhov cua, thiab cov sintered silicon carbide puas cib yuav zoo ib yam. Lub zog tseem ruaj khov thiab siab. Kev sib txhuam coefficient yog siab thiab cov nyhuv ntawm kev tiv thaiv kiln hauv ob sab phlu crusting nyob rau hauv kub kub yog zoo dua.
Tag nrho cov nyob rau hauv tag nrho cov, lub zog ntawm silicon carbide composite bricks mas txiav txim siab siv cov silicon carbide composite hluav taws cib. Yog tias lub zog qis dua 80MPa, nws tsuas yog siv tau qis dua. Tsis txhob siv qhov kub thiab txias los yog qhov hnyav heev.
