Thaum xaiv lub thickness ntawm lub hnab yas canvas, cov kev txiav txim siab tseem ceeb yog kev siv cov xwm txheej siv thiab cov kev xav tau. Ntawm no yog cov ntsiab lus tseem ceeb:
Saib ntawm cov xwm txheej siv tau.
Rau kev siv lub teeb txhua hnub (xws li nqa lub xov tooj, cov khoom, thiab cov khoom me me), feem ntau yog 8 oz lossis tsawg dua li 8 oz lossis tsawg dua li 8 o
Rau kev sib tw lossis kev yuav khoom nrog cov khoom hnyav (xws li cov phau ntawv lossis cov khoom noj), xaiv cov ntaub pua plag tuab (10 oz lossis siab dua). Nws muaj cov load zoo dua - cov kabmob muaj peev xwm, muaj ntau ruaj khov thiab tsawg dua rau deformation.
2. Tshawb xyuas "Oz" ntawm cov canvas.
Lub thickness ntawm canvas yog feem ntau qhia nyob rau hauv "ooj ib square mev" (oz / yd²). Lub siab dua ooj suav, cov tuab thiab muaj zog cov ntaub.
6-8 OZ: Lub teeb thiab nyias, haum rau lub caij ntuj sov lossis siv ib ntus.
10-12mm: Nruab nrab tuab, ntsuas hluav taws xob ruaj khov thiab qhov tseem ceeb, haum rau feem ntau txhua hnub teeb meem.
16 Oz thiab saum toj no: tuab thiab ruaj, haum rau ntev- sij hawm cia ntawm cov khoom hnyav, xws li cov cuab yeej hnab, khoom ntim, thiab lwm yam.
3. Tshuav nyiaj xav thiab ua haujlwm
Cov ntaub pua plag tuab yog txhav thiab zoo - zoo li qhov zoo li, tab sis tej zaum yuav nyuaj me ntsis; Nyias canvas yog mos thiab kaw - fitting, haum rau cov qauv zoo nkauj canvas). Yog tias koj nyiam cov ntaub ntawv ntxhib los mos, xaiv nruab nrab tuab; Yog tias koj caum lub durability, ua ntej cov tuab tuab.
Raws li qhov hnyav thiab siv zaus ntawm cov khoom koj feem ntau nqa, koj tuaj yeem xaiv cov tuab tuab uas tsim nyog.
