Lub luag haujlwm ntawm cov pob zeb ua kom pom cov khoom siv
Thaum lub caij ntuj no siv, qhov kub yog qis thiab cov cua yog qhuav. Cov khoom siv ua kom tawv me me thiab lub zog yog qhov nyuaj kom tau raws li qhov xav tau. Lub hardness ntawm cov khoom lag luam yam tsis muaj chav kho yuav tsum tsis ua kom tau raws tus qauv. Kev siv cov ncu kev kho kom txhim kho lub zog ntawm cov pob zeb ua tau tiav los ntawm ob lub ntsiab lus hauv qab no:
1. Tiv thaiv cov kab nrib pleb. Thaum cov ntsuas kub sab nraud kom khov, cov dej hauv cov pob zeb yuav khov. Tom qab cov dej tig mus rau hauv dej khov, lub ntim yuav nthuav sai sai hauv lub sijhawm luv luv, uas yuav rhuav cov qauv ntawm cov pob zeb. Nyob rau tib lub sijhawm, kev nyab xeeb yog qhuav. Tom qab cov qhob tawv tawv, nws yuav tawg yuav ua thiab lawv lub zog yuav tsis muaj zog.
2. Qhob ncu curing muaj dej txaus rau kev haus dej. Yog tias noo noo ntawm cov npoo thiab sab hauv ntawm cov qhob dua dhau sai, nws yuav nyuaj rau kev haus dej txuas ntxiv. Cov tshuaj kho kom huv tsis tuaj yeem tsuas yog ua kom cov kev mob siab rau qhov kub thiab txias, tab sis kuj maj mam noo noo, thiab txhawb nqa cov dej ntws tawm ntawm cov pob zeb.
Yuav ua li cas ua cov pa rov kho nrog chav?
Nyob rau hauv cov pob zeb kho, ntxiv dag zog rau kev tswj hwm ntawm cov av noo thiab kub ntawm cov pob zeb ua, txo cov pob zeb ua kom nruj, thiab npog qhov chaw ntawm cov qhob kom nruj rau hauv lub sijhawm. Nws tuaj yeem them nrog daim ntaub, yas ntawv, thiab lwm yam los tiv thaiv evaporation. Ua ntej pib kho cov pob zeb ua kom cov txheej txheem tiv thaiv txheej txheem, yuav tsum tau muab pov tseg thiab zaws nrog plaster tsawg kawg ob zaug kom nws rov qab.
Txij ntawm no, kev saib xyuas yuav tsum tau ua li ntawd lub overlay yuav tsum tsis txhob nyob rau hauv kev sib cuag ncaj qha rau cov pob zeb kom txog thaum cov qhob thaum kawg kho tau. Tom qab muab cov pob zeb ua vaj tse, yog huab cua kub, cov cua yog ua kom lub cev tsis huv yuav ua rau cov gel tsis tuaj yeem ua rau cov dej khov kho thiab tsis tuaj yeem kho tau.
Ib qho ntxiv, thaum lub zog ua haujlwm tsis txaus, pib thaum ntxov ureormage deformation thiab shrinkage crushing. Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tau siv pob zeb ua cov chav tsim hluav taws xob chav hluav taws xob kom kho cov pob zeb ua hauv cov theem thaum ntxov ntawm pouring. Cov pob zeb yuav tsum tau kho tam sim ntawd tom qab cov duab kawg yog tsim thiab qhuav tawv qhob zog yuav tsum tau kho tam sim tom qab pouring.