Daim ntawv thov ntawm Tuam Tshoj tus PE-RT cov kav dej nyob hauv thaj chaw cov kav dej kub thiab dej txias hauv vaj tse tau tsim kho sai, thiab cov ntaub ntawv raw ntxiv tau ntxiv. Xyoo 2002, kev lag luam tus qauv "PE-RT Pipeline System rau Kub thiab Dej Txias" raug tso tawm, tab sis kev lag luam tus qauv yog ua raws nraim hauv German tus qauv "PE-RT" cov yeeb nkab - kev xav tau dav dav. Thiab "hluav taws xob-resistant polyethylene (PE-RT) yeeb nkab - qhov loj", ob qhov qauv yog ua raws li cov cim ntsuas ntawm hom I PE-RT cov ntaub ntawv. Nrog rau kev tsim cov ntaub ntawv, qhov Performance index ntawm hom II PE-RT cov ntaub ntawv tau ntau dua qhov uas cov thawj cov ntaub ntawv. Cov txheej txheem thoob ntiaj teb ISO22391 "PE-RT cov yeeb nkab rau cov dej kub thiab dej txias" kuj tau muab kho thiab kho tshiab. , nce cov kev cai rau hom II PE-RT kav dej. [1]
Nrog rau kev tsim cov ntaub ntawv, PE-RT tubes raug kho dua tshiab rau PE-RTII plab, uas tau muab cais tawm rau hauv peb hom raws li lawv cov comonomers:
1. Copolymer of ethylene thiab octene - tshav kub resistant polyethylene (C2 + C8);
2. Copolymerization ntawm ethylene thiab hexene - tshav kub resistant polyethylene (C2 + C6);
3. Cov tshuaj tiv thaiv tshav kub-tshav kub (C2 + C4) copolymerized nrog ethylene thiab butene
Tam sim no, (PE-RT II hom yeeb nkab) cov khoom tau muab coj los ua, uas yog tsim rau kev lag luam thiab cov pej xeem tsev kub thiab dej txias, raj dej, thermal pre-embedded kav dej, hauv cua kub cua sov thiab lub siab kub qhov chaw tso cua sov tshuab, tshwj xeeb tshaj yog nyob rau sab qaum teb. Nws yog siv rau lub vas nthiv lub vas tawm ntawm lub nroog cua sov-PE-RT II hom prefabricated ncaj nraim faus ib tus yeeb nkab yeeb nkab.
