1. Corrosion Properties of Raw Materials: PVC raw cov ntaub ntawv (tshwj xeeb tshaj yog nruj PVC) decompose nyob rau hauv ntau heev kub ua, tso hydrogen chloride (HCl) roj. Cov roj no ua rau muaj kev xeb loj heev ntawm cov khoom siv hlau ntawm cov yeeb nkab- ua cov tshuab, xws li cov raj xa dej thiab cov ntsia hlau. Qhov no yog lub hauv paus ua rau cuam tshuam cov khoom siv corrosion kuj.
2. Kev xaiv thiab tsim khoom: Txhawm rau tiv thaiv HCl corrosion, cov yeeb nkab- ua tshuab yuav tsum tau tshwj xeeb "corrosion-resistant" tsim. Piv txwv li, cov tshuab tshwj xeeb thiab cov raj xa dej yuav tsum tau ua haujlwm, nrog rau cov ntsia hlau compression ratios khaws cia nruab nrab kom tsis txhob muaj kev sib tsoo ntau dhau - ua rau cua sov thiab ua kom nrawm nrawm ntawm cov khoom siv raw. Kev tiv thaiv corrosion ntawm cov khoom siv cov ntaub ntawv ncaj qha txiav txim siab nws lub neej kev pab cuam.
3. Kev Tswj Xyuas Txheej Txheem Ntau Lawm: Kev tuav lub chim kub yog qhov tseem ceeb tshaj plaws. Kev kub ntau dhau ncaj qha ua rau PVC decomposition, ua HCl. Yog li ntawd, kev tswj xyuas qhov kub thiab txias yog qhov tseem ceeb los tiv thaiv cov khoom siv raw khoom overheating thiab decomposition, yog li tiv thaiv cov cuab yeej los ntawm corrosion.
4. Kev khiav hauj lwm thiab kev saib xyuas: Kev ua haujlwm txhua hnub thiab kev saib xyuas ncaj qha cuam tshuam rau cov khoom siv tiv thaiv corrosion. Piv txwv li, ua ntej kaw, txo lub chim kub thiab kom huv si residual PVC siv cov qauv yas. Tsis tas li ntawd, PVC residual yuav txuas ntxiv decomposing nyob rau hauv lub chim, hnyav corroding lub ntsia hlau thiab chim. Tsis tas li ntawd, kev txhim kho cov khoom siv cua txias xws li kiv cua ntawm cov yeeb nkab pub pab tiv thaiv kom tsis txhob muaj cua sov.