PEzaj moviefeem ntau yog siv rau cov khoom noj hauv tsev, thaum PVC cling zaj duab xis feem ntau yog siv los ntim cov txiv hmab txiv ntoo tshiab, uas tsis tuaj yeem ncaj qha rhuab nrog ntim.
(1) "saib" ntawm cov ncauj lus kom ntxaws cov khoom piav qhia ntawm PE yas qhwv. Yog tias qhov sib thooj PE cling zaj duab xis lossis polyethylene yas qhwv tau luam tawm ntawm phau ntawv, nws txhais tau tias txhua tus tuaj yeem siv nrog kev ntseeg siab.
(2) "kov" PE yas qhwv, txhua tus neeg uas muaj kev nkag siab zoo yuav paub tias polyethylene yas qhwv yuav ua rau koj xav tias nws tsis nplaum heev thiab tsis pob tshab. Vinyl chloride yas qhwv yog qhov sib txawv thiab lo yooj yim.
Txawm hais tias koj siv cov yeeb yaj kiab zoo li cas, koj yuav tsum ua tib zoo mloog cov hauv qab no thaum siv nws:
1. Kev siv kub ntawm cov ntaub qhwv yas yog feem ntau ntawm 120 degree - rho tawm 40 degree;
2. Cov ntaub qhwv yas tiv thaiv kev sib cuag nrog cov khoom noj rau lub sijhawm ntev;
3. Thaum cua sov, ob peb lub qhov me me yuav tsum tau muab tso rau hauv lub hnab yas kom tsis txhob tawg, thiab nws tuaj yeem tiv thaiv cov dej kub kub los ntawm kev poob ntawm cov ntaub qhwv yas mus rau cov khoom noj.
