Video: Hom PVC twg yog siv rau cov kav dej?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
PVC yog tsim nyob rau hauv ntau qib sib txawv: teem caij 40 thiab 80 thiab chlorinated polyvinyl chloride (CPVC). Lawv siv muaj raws li hauv qab no: Teem sijhawm 40 feem ntau yog siv rau dej ntws -kab kav dej hauv qab tsev.
Hauv qhov no, hom PVC twg siv rau cov kav dej?
Polyvinyl Chloride ( PVC ) - Lwm cov khoom siv nrov rau niaj hnub no kav dej cev yeeb nkab, PVC yog cov yeeb nkab dawb lossis grey siv rau cov dej kub siab, feem ntau yog cov khoom siv tseem ceeb hauv tsev.
Qhov thib ob, vim li cas PVC thiaj siv rau hauv cov yeeb nkab? Siv feem ntau nqa dej siab, PVC cev yog tsim los ntawm polyvinyl chloride, uas yog sib xyaw ntawm cov yas thiab yas. PVC feem ntau siv raws li cov kav dej loj hauv tsev, thiab tsis tuaj yeem ua tau siv thauj cov dej kub, raws li qhov kub thiab txias yuav ua rau lub cev rau warp.
Hais txog qhov no, PVC puas tuaj yeem siv rau cov kav dej?
PVC Yeeb Nkab Siv rau Cov kav dej Lub sij hawm tsis tu ncua 40 PVC yog zoo meej rau dej ntws thiab dej khib nyiab. Rau txhua daim ntawv thov dej kub, xws li siv PVC rau da dej kav dej , CPVC yog qhov tsim nyog. Feem ntau cov tshuab siv tooj liab kav , yog li peb nqa CPVC uas yog qhov loj me raws li tus qauv tooj liab qhov ntau thiab tsawg.
Muaj pes tsawg hom PVC kav?
Muaj ob lub ntsiab ntawm PVC yeeb nkab: lub sijhawm 40 thiab teem sij hawm 80 . Qhov sib txawv nyob ntawm qhov tuab ntawm cov yeeb nkab phab ntsa. Teem caij 40 Cov kav dej PVC muaj cov phab ntsa nyias nyias dua li lawv lub sijhawm 80 cov neeg sib tw.
Pom zoo:
Xyoo twg lawv pib siv PVC rau cov kav dej phwj tuaj?
Xyoo 1936 - Cov kav dej PVC tau pib teeb tsa rau kev faib cov dej haus thiab cov kav dej pov tseg (Lub Tebchaws Yelemees). Feem ntau tseem tab tom ua haujlwm. 1949 - Pib siv PVC yeeb nkab hauv North America. 1952 - PVC yeeb nkab qhia hauv Asmeskas
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