Qhov tseem ceeb tshaj plaws hauv kev xaiv khoom-kev rwb thaiv tsev yog nws cov thermal ua hauj lwm. Nyob rau hauv sov plaster, es tsis txhob xuab zeb, ntau hom fillers uas tsis tshua muaj hluav taws xob coj los siv, uas ua rau nws txaus nyiam rau cov uas xav ua kom lub tsev sov tiag tiag.
Hom ntawm sov plaster
Ntawm qhov universal sov coatings yog plaster nrog filler nyob rau hauv daim ntawv ntawm nthuav vermiculite, uas yog tau los ntawm thermal processing ntawm pob zeb. Nws yog ib qho tseem ceeb teev cov yeeb yam antiseptic ntawm cov khoom no, uas tso cai rau nws siv rau kev kho kom sab hauv thiab sab nrauv. Ntxiv hygroscopicity yuav tsum ceev faj tiav.
Lub hau sawdust yog tsim nyob rau hauv ob qho nrog xis mas, av nplaum thiab daim ntawv tawg, uas ua rau nws tsis yooj yim sua kom siv cov tshuaj khib rau sab nraud. Yog hais tias qhov chaw no tau them nrog pob zeb ua ke, cov cua hauv chav dej ntau npaum li sai tau kom cov kab mob hu ua fungi thiab pwm tsis tuaj.
Rau sab hauv tsev thiab sab nraum zoov ua haujlwm zoo tsim nyog rau cov hmoov txhuam hniav polystyrene. Qhov no yog ib qho khoom siv hluav taws xob thiab lub rwb thaiv tsev zoo, tab sis cov khoom siv yog yam mob. Foam iav yog dej tsis muaj thiab tsis muaj qhov txav, qhov tsis tuaj yeem, kev tiv thaiv ntxiv tsis tsim nyog. Txawm li cas los xij, cov khoom cua sov thaiv tsis tau qhov siab tshaj plaws.
Daim ntawv thov thiab cov txiaj ntsig ntawm kev sov plaster
Lub cheeb tsam uas siv cov khoom no yog siv ntau heev: qhov rooj thiab qhov rais slopes, pem teb thiab nruab nrab av npog npog, hauv qab daus , cov pob yas qaum tsev thiab phab ntsa, sab nrauv sab nraud, cov pob txha, cov dej nce tau.
Muab piv rau qhov ntsuas sov thiab plab, nws yog qhov tsim nyog teev tias tus qub muaj ntau tshaj qhov hnyav, yuav tsum tau siv los ntawm txheej puag thaum lub sijhawm hauv 10 cm. Tsis tas li ntawd, qhov chaw ua haujlwm xav tau ib qho kev xub thawj thiab ntxiv cov hniav zoo nkauj.
Nws yog tsim nyog sau cov txiaj ntsim nram qab no: kev nplua yog zoo heev, kev siv qhov ncauj yog xaiv tau, tab sis ntshaw. Nws yog ua tau rau siv rau phab ntsa uas tsis tau sib koom ua ke,
Cov ntaub ntawv siv tshuab zoo ib yam li uas siv rau plaster pa. Phab ntsa raug ntxuav ntawm khib nyiab, nws yog ntshaw kom kho lawv nrog impregnations. Sov plaster yuav yuav raws li ib qho tiav qhuav qhuav sib tov. Yog tias koj xav tau, ua rau koj tus kheej. Ua ntej daim ntawv thov, qhov chaw ua haujlwm yuav tsum tau moistened. Ib txheej yuav tsum tsis pub dhau ib cim ntawm 2 cm Tom qab 5 teev, koj tuaj yeem mus rau tom ntej txheej. Cov txheej txheem ntawm kev ziab tag nrho yuav siv li ob lub lis piam, tab sis qhov tshwm sim yog tsim nyog.