Lub tsev kho kom zoo nkauj fireproof board feem ntau yog cov khoom siv sib xyaws nrog cov khoom siv ua lub cev xws li lub cev tseem ceeb, xws li ntau cov gypsum boards. Cov dej ua si dihydrate gypsum muaj 21% dej ntshiab. Thaum ntsib hluav taws, nws yuav tawm hauv cov iav siv hluav taws xob kom nqus tau ntau lub zog cua sov. Cov dej lim uas tsim ua lub viav vias kab vaum nyob rau saum npoo ntawm cov khoom lag luam gypsum, tuaj yeem tiv thaiv kev sib kis ntawm cov hluav taws. Kev tso dej tawm tom qab lub cev qhuav dej tseem yog tus neeg coj tsis zoo thiab nplaim taws sai. Qhov ntau dua qhov tuab ntawm cov khoom siv gypsum, qhov zoo dua lawv cov hluav taws kub ua haujlwm. Vim tias qhov zoo hluav taws tiv thaiv cov yam ntxwv ntawm kev tsim lub tsev gypsum, cov khoom lag luam gypsum yog siv dav hauv ntau lub tsev niaj hnub, tshwj xeeb hauv phab ntsa thiab qab nthab ntawm cov tuam tsev siab, fiber ntau cov txiag board cov tuam txhab. Tsis tas li ntawd, kub kub nthuav dav vermiculite, nthuav dav perlite, microporous hlaws calcium thiab ua npuas iav, ntxhia pob zeb, iav ntaub plaub, thiab polychloroethylene ua npuas plastics nrog dej nws tus kheej tua cov khoom muaj cov hluav taws kub-tiv thaiv cov paib ua los ntawm dej iav, cement thiab lwm yam tshuaj lom neeg ntxiv. nrog zoo thaum tshav kub kub tsis kam, thiab kuj tseem siv dav hauv ntau qhov chaw tsim khoom thiab chaw haujlwm.
Daim ntawv ntsib gypsum board (txuas ntxiv xa mus rau gypsum board) yog daim phaj nyias ua los ntawm gypsum thiab lwm yam ntxiv xws li tsim nyog fiber, nplaum, nrawm nrawm thiab retarder li cov tub ntxhais, board ntawv raws li lub hau, npaj los ntawm kev npaj slurry, molding, txiav thiab khoom kom qhuav. Nws muaj qhov ua tau zoo thiab muaj zog, av qeeg, tiv thaiv hluav taws, kab pov thawj kom sov, rwb thaiv tsev kub, suab rwb thaiv tsev, cov txheej txheem ua tau zoo thiab kho kom zoo nkauj zoo nkauj Nws yog qhov zoo tshaj plaws lub tsev tshiab cov khoom ntsa, uas tuaj yeem siv rau sab hauv phab ntsa, phab ntsa cladding vaj huam sib luag, qab nthab thiab kev faib ua ke ntawm pawg thawj coj saib hauv kev tsim kho vaj tsev thiab pej xeem huab hwm.
