Dab tsi yog qhov zoo ntawm refractory silica fume?
Aug 13, 2024Tso lus
1, txhim kho lub zog ntawm refractory castable
Muaj ntau qhov pores nyob rau hauv cov tsoos refractories, thiab cov silica fume ntawm cov refractories yog sau nyob rau hauv lub qhov hws, uas pab txhim kho cov bulk ntom thiab txo cov porosity, thiab muaj peev xwm ho txhim kho lub zog.
2, txhim kho qhov kev ua tau zoo
Refractory silica fume muaj kev ua haujlwm muaj zog, tuaj yeem tsim cov colloidal hais hauv dej, ntxiv qhov tsim nyog tus nqi ntawm cov dispersant, tuaj yeem txhim kho cov dej ntws, yog li txhim kho qhov kev ua tau zoo.
3, txhim kho qhov kub thiab txias ua haujlwm ntawm cov khoom siv refractory, txuas ntxiv lub neej kev pab cuam ntawm cov khoom, yog li txo cov nqi.
Silica fume yog ib qho yooj yim los tsim ib pab pawg -Si-OH hauv dej, muaj zog hydrophilicity thiab kev ua haujlwm, uas tuaj yeem txhim kho cov hws ntawm cov ntaub ntawv refractory, txhim kho qhov kub thiab txias kev ua haujlwm, thiab txuas ntxiv lub neej kev pab cuam ntawm refractory castable.
Silica fume kev kho mob Cov txheej txheem ntawm kev sau cov silica fume nyob rau hauv cov kua paug tawm thaum lub sij hawm zus tau tej cov silicon los yog ferrosilicon alloys uas muaj ntau tshaj li 75% silicon, thiaj li hais tias nws yuav siv tau tag nrho. silica fume yog ib tug loj tus naj npawb ntawm high-kub SiO thiab Si gases thiab cua sai oxidized thiab condensed hais, kuj hu ua silica soot, thaum muaj silicon los yog ntau tshaj 75% ferrosilicon alloy yog tsim los ntawm hluav taws xob arc rauv. Smelting 75% hlau silicon tuaj yeem tsim tau txog 10% ntawm cov hmoov micro silicon, smelting industrial silicon tuaj yeem tsim txog 15% ntawm cov hmoov micro silicon, tuaj yeem sau los ntawm cov hmoov av. Refractory silica fume yog ib qho ua pa (tseem hu ua inhalable) plua plav, uas ntab saum huab cua rau lub sijhawm ntev, muaj ntau qhov sib txawv, thiab ua rau ib puag ncig hnyav. Nws yooj yim nkag mus rau tib neeg lub ntsws thiab nyob rau hauv alveoli, ua rau silicon (silicon) mob ntsws.
