Sillimanite Cib: Lub Zog Muaj Zog rau Cov Ntawv Thov Kev Lag Luam

Hauv cov chaw ua haujlwm uas muaj qhov kub thiab txias siab, siab, thiab hnav tsis tau zoo, cov kev daws teeb meem txhim khu kev qha yog qhov tseem ceeb heev.Cov cib Sillimanitesawv tawm ua ib qho "kev ua haujlwm hauv kev lag luam," nrog cov khoom zoo tshaj plaws uas ua rau muaj kev ua haujlwm zoo dua, txo cov nqi, thiab txhim kho cov khoom zoo thoob plaws hauv kev tsim khoom siv hlau, ceramics, thiab iav. Nov yog vim li cas lawv thiaj yog qhov kev xaiv zoo tshaj plaws thoob ntiaj teb.

1. Cov Khoom Tseem Ceeb: Dab Tsi Ua Rau Sillimanite Cib Tsis Tseem Ceeb

Los ntawm cov aluminosilicate mineral sillimanite, cov cib no muaj peb qhov zoo tshaj plaws:

Ultra-High Refractoriness:Nrog lub melting point tshaj 1800 ° C, lawv tiv taus cua sov heev (qhov tseem ceeb rau kev smelting hlau thiab iav yaj, qhov twg kub tshaj 1500 ° C) yam tsis muaj warping lossis degradation.​

Kev Nthuav Dav Thermal Tsawg:Tus nqi qis dua 1% ntawm 1000°C tiv thaiv kev tawg los ntawm kev poob siab thermal, ua kom muaj zog nyob rau hauv qhov chaw ua kom sov-txias xws li lub cub tawg.

Kev Tiv Thaiv Zoo Tshaj Plaws:Lawv ntom thiab tawv, tiv taus kev txhuam los ntawm cov hlau yaj/slag thiab kev yaig tshuaj los ntawm cov kua qaub/alkalis—qhov tseem ceeb rau kev ua tshuaj lom neeg thiab metallurgy.​

Cov yam ntxwv no ua rau cov cib sillimanite hloov los ntawm "zoo-rau-muaj" mus rau "yuav tsum muaj" rau kev ua haujlwm zoo tshaj plaws.

2. Kev Ua Hlau: Txhim Kho Kev Tsim Hlau & Hlau

Kev lag luam metallurgical vam khom ntau rau cov cib sillimanite rau cov khoom siv cua sov:

Cov ntaub thaiv cua sov:Lawv nyob rau hauv "cheeb tsam kub" (1500–1600°C) ntawm cov cub tawg hlau, ua tau zoo dua li cov cib hluav taws ib txwm muaj. Ib lub Hoobkas hlau hauv Is Nrias teb tau pom tias lub cub tawg siv tau ntev dua 30% thiab cov nqi kho qis dua 25% tom qab hloov.​

Cov ntaub thaiv Tundish & Ladle:Txo cov hlau uas muaj kuab paug thiab ua kom lub txheej siv tau ntev txog li 40% (ib lub tuam txhab ua hlau hauv Tebchaws Europe), lawv ua kom cov hlau uas yaj tau yooj yim dua.

Cov hlab ntsha Desulfurization:Lawv txoj kev tiv taus cov slag uas muaj sulfur ntau ua rau lawv ruaj khov, pab ua kom tau raws li cov qauv kev huv huv ntawm cov hlau.

Rau cov kws tshawb fawb txog hlau, cov cib sillimanite yog kev nqis peev zoo rau kev tsim khoom.

3. Cov Khoom Uas Ua Los Ntawm Av nplaum: Cov Pobzeb Uas Ua Rau Kom Zoo Nkauj, Cov Khoom Siv Huv Si & Cov Khoom Uas Ua Los Ntawm Av nplaum

Hauv cov khoom siv av nplaum, cov cib sillimanite ua ob lub luag haujlwm tseem ceeb:

Cov ntaub pua plag hauv qhov cub:Qhov kub uas tswj tau qhov kub sib npaug (txog li 1200°C) hauv cov qhov cub hlawv, lawv qhov kev nthuav dav tsawg yuav tiv thaiv kev puas tsuaj. Ib lub tuam txhab tsim vuas Suav teb tau txo cov nqi hluav taws xob los ntawm 10% tom qab kho dua tshiab, nrog rau kev siv hluav taws xob tsawg dua 15-20%.

Cov Khoom Siv Raw Additive:Thaum muab zom ua hmoov (5–10% hauv cov khoom sib xyaw), lawv ua rau lub zog kho tshuab (muaj zog khoov tau 25% ntau dua) thiab kev ruaj khov ntawm thermal (tsawg dua 30% kev puas tsuaj los ntawm thermal shock) hauv cov khoom siv ceramic.​