Lub ntsej muag tsis zoo nkauj tshwj xeeb lub ntsej muag yuav dai rau sab hauv. Nws tuaj yeem tsim los ntawm ntau cov ntaub ntawv, tab sis qhov yooj yim rau kev ua haujlwm nrog tseem yog plaster zoo tib yam. Nws yog qhov yooj yim hauv cov txheej txheem, siv yooj yim, tsis muaj tshuaj lom thiab xim pleev xim kom haum rau nws.
Nws yog qhov tsim nyog
- - Plaster;
- - Plasticine;
- - Cov rooj tog zaum rooj tog;
- - Tooj liab tooj liab;
- - Txhuam.
Cov Lus Qhia
Kauj ruam 1
Qauv txiav txim siab. Ntawm lub rooj tsav tiaj tus, pwm ib qho qauv ntawm daim npog yav tom ntej los ntawm plasticine. Tsis txhob sim kom nws dhau kev xav, nrog kev nthuav dav, vim qhov no yuav ua rau nws nyuaj rau pov cov khoom hauv plaster.
Kauj ruam 2
Ua pwm txhaj rau casting. Qhov kev ua haujlwm no yog qhov tsim nyog vim tias pwm yuav tsum muaj daim duab rov qab los nrum lub npog ntsej muag. Dilute lub gypsum mus rau lub sib xws ntawm kua qaub cream. Siv cov tshuaj rau cov av nplaum pwm hauv txheej txheej. Siv thawj txheej nrog txhuam, sim tsis txhob ua npuas lossis voids. Tom qab ntawd tuaj yeem thov pleev ntsej muag lossis khoov duav. Thov plaster ntawm Paris kom txog thaum pwm tsim muaj kom loj txaus. Txhawm rau txhawm rau ntxiv dag zog ntawm cov pwm nrum, tso tooj liab hlau ntawm cov khaubncaws sab nraud povtseg. Ua ib hom qhov cuab lub zog txhawb nqa tawm ntawm nws. Qhov no yog qhov tshwj xeeb tshaj yog koj daim npog yuav loj. Siv cov tooj liab tooj liab xwb kom tsis txhob txhaws daj hauv lub plaster.
Kauj ruam 3
Kev kho ntawm daim ntawv ua tiav. Tom qab li ib nrab ib teev, lub plaster yuav ua tawv thiab ua tawv heev. Tam sim no tig lub pwm hla thiab tshem cov qauv plasticine. Yog tias ib qho kev ua txhaum yog tsim thaum lub sijhawm ua tawv tawv tawv (gypsum), luas lawv nrog pob hau tawv. Koj tuaj yeem ua kom du du nrog ib daim ntawv abrasive. Yog hais tias lub gypsum nplhaib me ntsis thaum tapped, ces nws tau qhuav zoo. Npog sab hauv puab ntawm pwm nrog cov rooj tog tsis muaj xim.
Kauj ruam 4
Ua daim npog ntsej muag. Lub plaster tam sim no yuav tsum tau diluted dua. Ncuav lub plaster ntawm Paris rau hauv lub puab pwm. Ncuav rau hauv kom zoo, nco ntsoov tias kev daws teeb meem tusyees thiab sau tag nrho cov voids. Hauv qhov tseem ntub plaster ntawm Paris, nias lub xov hlau lub voj uas koj yuav dai lub npog ntsej muag. Tos kom txog thaum cov khoom kom qhuav thiab ua tib zoo tshem nws ntawm cov pwm. Luas nrog nplaws tawv ntoo thiab ntoo thuv. Tam sim no koj tuaj yeem pleev xim thiab pleev cov ntsej muag lub npog ntsej muag, lossis koj tuaj yeem tawm ntawm qhov tsis kho. Cov ntshiab dawb xim ntawm gypsum zoo nkaus li zoo nyob rau hauv ntau nruab nrab.
