Hmoov Talc thiab hmoov wollastonite yog ob hom khoom siv uas tsis yog hlau uas siv dav hauv kev lag luam niaj hnub no. Lawv muaj cov teb siv sib tshooj thiab kev ua haujlwm zoo sib xws, tab sis muaj cov qauv lub cev, cov khoom siv tshuaj lom neeg thiab cov xwm txheej siv tau sib txawv, ua rau muaj kev sib tw thiab kev sib pab hauv kev lag luam khoom siv thoob ntiaj teb.

Hais txog qhov zoo sib xws, ob qho tib si muaj cov xim dawb siab, cov tshuaj lom neeg ruaj khov thiab tsis muaj tshuaj lom. Lawv feem ntau siv ua cov khoom siv pheej yig los hloov cov khoom siv tshuaj kim, txo cov nqi tsim khoom rau cov khoom lag luam tom qab. Ob qho tib si tuaj yeem ua rau muaj zog, tiv taus huab cua thiab du ntawm cov khoom tiav, thiab tau siv dav hauv cov yas, tshuaj pleev xim, ceramics, roj hmab thiab kev lag luam khoom siv hauv tsev. Tsis tas li ntawd, lawv ua raws li cov qauv tsim khoom ntsuab thoob ntiaj teb, maj mam hloov cov khoom siv asbestos uas ua rau muaj teeb meem thiab tau txais kev lees paub ruaj khov hauv kev lag luam.

Txawm li cas los xij, muaj qhov sib txawv pom tseeb ntawm ob hom hmoov av. Cov qauv, talc muaj cov duab lamellar thaum wollastonite muaj cov duab siv lead ua kua. Talc muaj lubricity zoo dua, mos dua thiab ua haujlwm rwb thaiv tsev zoo dua, ua rau nws zoo tagnrho rau cov tshuaj pleev ib ce, cov khoom siv tshuaj thiab cov khoom yas ci ntsa iab. Wollastonite muaj lub zog kho tshuab zoo heev, kev ruaj khov thermal thiab lub peev xwm tiv thaiv kev tawg, ua tau zoo dua hauv cov khoom siv hluav taws kub siab thiab cov khoom siv tsev muaj zog siab.

Hauv kev siv tshuaj lom neeg, talc yog magnesium silicate uas muaj zog tiv taus acid thiab alkali. Wollastonite yog ib feem ntawm calcium silicate, uas muaj kev ua haujlwm sintering zoo dua thiab cov nyhuv fluxing. Hauv kev siv tiag tiag, talc yog qhov nyiam rau cov qauv mos thiab kev thov lubrication, thaum wollastonite sawv tawm hauv cov xwm txheej txhawb nqa thiab tiv taus kub siab.

Hauv cov saw hlau kev lag luam, ob hom hmoov no yog ib feem hloov tau thiab sib pab tau. Cov chaw tsim khoom xaiv cov khoom siv raws li qhov xav tau ntawm cov khoom. Nrog rau kev txhim kho tas mus li ntawm cov lag luam downstream, ob qho tib si talc thiab wollastonite hmoov tswj tau qhov kev thov ua lag luam ruaj khov. Lawv cov txiaj ntsig sib txawv yuav nthuav dav ntxiv rau cov ciam teb ntawm daim ntawv thov, ua ke tsav tsheb kev txhim kho ruaj khov ntawm kev lag luam thoob ntiaj teb uas tsis yog hlau.