Tuam Tshoj txoj kev loj hlob ntawm cov yeeb nkab yas yog ceev, qhov zoo yog pheej txhim kho. Ntawm lawv, polyethylene PE cov dej xa dej yeeb nkab yog dav siv hauv kev tsim cov dej hauv tsev, cov kav dej hauv tsev, cov kav dej faus, lub tsev cua sov, cov kav dej xa hluav taws xob, hluav taws xob thiab kev sib txuas lus tiv thaiv casing, cov yeeb nkab ua liaj ua teb thiab lwm yam. Nws yog tsuas yog siv hauv cov dej hauv nroog, cov khoom siv roj hauv nroog thiab cov av ua liaj ua teb, thiab lwm yam. PE (polyethylene) cov khoom siv dav siv hauv kev tsim cov yeeb nkab dej vim nws lub zog siab thiab corrosion kuj. Vim nws tsis xeb, nws yog ib qho zoo tshaj plaws rau kev hloov cov kav dej hlau zoo tib yam.
Polyethylene (PE) pipeline tau dhau los ua lub ntiaj teb thib ob loj tshaj plaws yas kav dej tom qab PVC-U pipeline, dav siv hauv kev xa roj, dej, dej phwj tuaj, dej ua liaj ua teb, roj av, mining, tshuaj lom neeg kev lag luam thiab xa ntawv thiab kev sib txuas lus thiab lwm yam kev lag luam. Daim ntawv thov ntawm polyethylene (PE) yeeb nkab pib nyob rau hauv 1940s, tiam thaum ntxov ntawm polyethylene yeeb nkab qib resin copolymer ntsiab lus yog tsawg, xws li PE32, PE40, PE63 qib resin, extruded polyethylene yeeb nkab nyob rau hauv lub sij hawm ntev hydrostatic xeem yuav tshwm nkig. kev puas tsuaj; Lub cim thib ob yog qib PE80, uas muab cov ntsiab lus copolymer raws li thawj tiam resin, thiab ua kom zoo dua qhov kev ntxhov siab ib puag ncig (ESCR) kev ua tau zoo ntawm polyethylene yeeb nkab qib resin. Qeb thib peb yog feem pua yog PE100 Resin tau nce ntom ntom nti thiab txhav, thiab 50 xyoo tau txhim kho, thaum tswj cov khoom es escr. Tam sim no, nruab nrab lossis siab ntom ntom polyethylene kav ntawm PE80 thiab PE100 qib yuav tsum tau siv rau kev xa roj; PE cov kav dej feem ntau siv PE80 thiab PE100 qib ntawm cov kav dej nruab nrab lossis siab ntom ntom polyethylene, PE63 tau maj mam dhau los lawm; PE32, PE40 tsawg ntom polyethylene feem ntau yog siv los ua dej.