Yuav ua li cas cog gypsum rau crafts: kauj ruam los ntawm kauj ruam cov lus qhia

Tsis yog txhua tus paub yuav ua li cas cog gypsum rau handicrafts ua los ntawm cov hlaws dai los yog ua me me sculptures. Cov cuab yeej ntawm kev tsim kho yog qhov yooj yim heev. Qhov loj tshaj plaws yog kom paub nyob rau hauv dab tsi piv lub Cheebtsam yog tov. Nws yuav tsum tau muab sau tias gypsum yog cov khoom tseem ceeb rau kev tsim khoom ntawm cov khoom xuas tes ua.

Yuav ua li cas yog gypsum

Ua ntej teb lo lus nug, yuav ua li cas kom cog rau gypsum rau crafts, nws yog ib qhov tsim nyog yuav nkag siab txog dab tsi ntawm cov ntaub ntawv nws yog. Thawj zaug ntawm tag nrho, nws yog heev yas. Gypsum yuav ua ntawv thov kom luag txhua yam ntawm qhov chaw. Cov khoom siv yooj yim ua thiab ceev nruj. Applied gypsum nyob rau hauv ntau industries: raws li cov chiv, raws li ib feem ntawm lub Cheebtsam ntawm daim ntawv thiab cellulose qhuav, raws li ib feem ntawm enamels thiab xim tsev. Cov khoom siv kuj yog siv los ua kev pleev xim sab hauv. Feem ntau, gypsum yog siv los ua cov khoom sib thooj hauv kev tsim kho.

Disadvantages ntawm cov khoom

Txij li nws tsis yog ib txoj hauv kev yooj yim los tsim cov gypsum rau cov khoom siv tes ua, nws tsim nyog noj nyiaj rau tej yam khoom siv tsis tiav. Qhov no yuav ua rau nws ua haujlwm nrog nws. Thawj zaug ntawm tag nrho, gypsum muaj qis indices ntawm hygroscopicity thiab lub zog. Yog li ntawd, siv ntawm zoo nkauj ua los ntawm cov khoom no, nyob rau hauv chav nrog high humidity yog tsis pom zoo. Thaum zoo li no, yuav tsum ua ntxiv. Rau kev cia siab, tiav crafts yuav tsum them nrog ib txheej ntawm txheej uas tiv thaiv los ntawm noo noo.

Ua ntej koj pib, koj yuav tsum nqa mus rau hauv tus account lub hygroscopicity ntawm gypsum khoom. Lawv nqus cov dej zoo. Yog li ntawd, nws yog pom zoo kom siv lub tsho tiv thaiv primer mus rau ntawm cov khoom. Tsuas yog tom qab no koj tuaj yeem siv lub txheej uas tiv thaiv kev ya raws.

Yuav ua li cas tsim gypsum rau crafts: proportions

Muaj ob peb txoj kev ua rau kev ua cov tshuaj gypsum rau kev tsim khoom ntawm cov khoom xuas tes ua. Qhov yooj yim txoj kev yog dilute hmoov nrog dej. Hauv qhov no nws yog ib qho tseem ceeb uas yuav tsum tau soj ntsuam tag nrho cov khoom. 7 feem ntawm gypsum yuav tsum tau tsawg kawg 10 seem ntawm dej. Nws yog tsim nyog sau cia tias kev npaj ntawm kev daws yog nrog tshwj xeeb kev kho mob, thiaj li hais tias tsis muaj cov qog. Nws yog pom zoo kom ntxiv gypsum mus rau dej, thiab tsis lwm versa. Hom no kuj tshem tawm cov plua plav tsim.

Xws li ib qho kev daws teeb meem yog yooj yim rau kev thov. Los ntawm nws koj yuav ua tau cov khoom ntawm yuav luag txhua cov duab. Txawm li cas los xij, nws tsim nyog xav tias cov khoom siv tes ua tsis muaj zog heev. Lawv yooj yim ua txhaum thiab crumble. Yog li cas yuav ua li cas cog gypsum rau crafts?

Qhov thib ob hom

Yog li ntawd, yuav ua li cas cog gypsum rau crafts. Txoj kev npaj qhov kev daws teeb meem no kuj nce mentsis ntau tshaj li qhov yav dhau los. Txawm li cas los xij, qhov sib tov ua rau nws ua tau kom muaj zog thiab ntau yam khoom siv txhim khu kev lag luam uas khaws lawv cov tsos rau ntau xyoo.

Yuav kom npaj cov tshuaj uas yuav tsum tau: 6 qhov chaw ntawm gypsum, 10 qhov chaw dej, 1 ib feem ntawm slaked txiv qaub. Cov cheebtsam yog sib xyaw kom sib xyaw kom txog rau thaum lub hauv paus tsim.

Ntau lawm cov xim dawb ntawm gypsum

Yuav ua li cas cog gypsum rau crafts ntawm txawv xim? Qhov no yuav tsum tau:

1. Gypsum.
2. Gouache.
3. Dej yog zoo tib yam.
4. Lub txhab nyiaj nrog lub hau.
5. Cov twj siv rau kev daws.
6. Ib rab diav, ib rab diav lossis ib lub pas.

Mixing txheej txheem

Yog li ntawd, yuav ua li cas tsim gypsum rau crafts los ntawm ib tug multi-xim daws? Nyob rau hauv qhov tseeb, tus txheej txheem yog yooj yim yooj yim. Yuav pib nrog nws yog tsim nyog rau ncuav gouache mus rau hauv lub thawv thiab cov dej uas tsim nyog rau kev npaj ntawm kev daws. Rau cov xim nrawm tag, nws pom zoo kom kaw lub hwj nrog lub hau thiab co nws me ntsis.

Cov xim dej yuav tsum tau nchuav rau hauv cov tais diav, qhov twg yuav daws tau. Ntawm no, tsom tag nrho cov proportions, nws yog ib qhov tsim nyog los maj ntxiv gypsum. Ncuav hmoov rau hauv cov kua yog ib qho trickle nyias, lossi cov khoom sib xyaw. Qhov no yuav ua tiav ib qho kev sib xyaw zoo sib xws ntawm qhov kev daws teeb meem. Qhov sib tov yuav tsum zoo li qaub tuab qaub. Yuav tsum txhuam cov dej thaum lub sij hawm npaj yuav tsum ua tib zoo xwv kom tsis muaj cov lumps thiab cua npuas. Txwv tsis pub, qhov yog tsim nyob rau hauv lub tiav lawm khoom.

Muaj pes tsawg lub crafts qhuav

Tam sim no koj paub yuav ua li cas cog gypsum rau crafts. Ntau npaum li cas cov khoom qhuav? Gypsum tov yog seized thiab maj hardened 4 feeb tom qab nws ua khoom siv. Yog li ntawd, nws yog ib qho tsim nyog yuav tau ua hauj lwm nrog cov khoom tiav sai thiab meej lawm. Tag nrho cov hardening ntawm gypsum yuav siv sij hawm qhov chaw nyob rau hauv ib nrab ib teev. Yuav kom txhawm rau kev daws tau qeeb qeeb, ces nyob rau hauv cov tshuaj yog ntxiv ib qho kua dej-soluble kua nplaum rau ntawm tus tsiaj hauv paus.

Dab tsi yuav hloov gypsum

Tam sim no, muaj ntau ntau teev rau kev muaj tswv yim. Yuav ua li cas cog gypsum rau Lori crafts, thiab cov khoom siv los ntawm lwm cov khoom siv rau kev ua duab, feem ntau yog ib txwm qhia hauv cov lus qhia. Nws yuav tsum tau kawm ua ntej pib ua hauj lwm, raws li kev daws teeb meem sai sai. Nws yuav tsum raug sau tseg tias nyob rau hauv qee qhov teev rau kev muaj tswv yim, analogues ntawm gypsum yog siv. Qhov feem ntau ntawm cov no yog alabaster.

Cov hmoov no muaj grayish ntxoov ntxoo thiab muaj ib tus qauv zoo kawg li. Cov khoom yog tau raws li ib tug ntawm cov cua sov kev kho mob ntawm ob-dej gypsum. Tsaug rau qhov no, cov tshuaj tiav tas li tau txais cov yam ntxwv txawv kiag li. Nws yog tsim nyog sau cia tias qhov tseeb ntawm qhov alabaster thiab gypsum yog qhov zoo sib xws.

Alabaster txawv li cas ntawm gypsum

Ntawm qhov sib txawv ntawm cov ntsiab lus no yog:

1. Alabaster sai sai sai tom qab kneading. Yog li ntawd, nws yog ua tau rau thov cov khoom tsuas yog tom qab qhia txog ntawm ib tug xov tooj ntawm cov additives thaum lub sij hawm kev npaj ntawm kev daws. Lawv cia qeeb qeeb ntawm alabaster.
2. Alabaster yog ib yam khoom nyuab tshaj dua gypsum. Nws tsis yooj yim los txiav txim qhov no. Nws yog txaus kov lub khoom tiav.
3. Gypsum yog ib yam khoom zoo rau tib neeg tshaj li alabaster.

Muaj ntau npaum li cas Alabaster crafts

Txiav txim seb lub sij hawm ntawm cov khoom pov thawj ntawm cov ntaub ntawv yuav ua tau los ntawm kev tshuaj xyuas cov yam ntxwv ntawm kev sib tov. Feem ntau, qhov teeb meem ntawm cov khoom siv alabaster yog pom tom qab 6 feeb tom qab qhov tshuaj txiav ntawm cov khoom. Ib feem ntawm freezing tom qab 30 feeb. Nws yuav tsum tau sau tseg tias ib qho kev muaj zog thiab qhuav dej tuaj yeem ua tau kom muaj siab ntawm 5 MPa. Alabaster ua kom tiav tsis pub dhau 1-2 hnub. Dua li ntawm qhov tseeb tias cov khoom siv ntawm cov khoom no muaj zog, nws tsis pom zoo siv qhov kev daws rau kev kawm nrog cov menyuam yaus, vim nws tsis zoo rau kev noj qab haus huv. Gypsum nyob rau hauv cov ntaub ntawv no yog preferable.