Kodi chitoliro cha HDPE & zopangira chitoliro ndi chiyani?

Pakalipano, m'mapaipi amadzi ndi madzi, mapaipi apulasitiki asintha pang'onopang'ono mipope yachikale monga mapaipi achitsulo ndi mapaipi achitsulo ndikukhala mapaipi akuluakulu.Poyerekeza ndi mapaipi achikhalidwe, mapaipi apulasitiki ali ndi zabwino zambiri monga kulemera kwapang'onopang'ono, kukana dzimbiri, kukana madzi otsika, kupulumutsa mphamvu, kuyika kosavuta komanso mwachangu, komanso kutsika mtengo, ndipo amakondedwa ndi gulu laumisiri wamapaipi.Panthawi imodzimodziyo, ndi chitukuko chofulumira cha makampani a petrochemical ndi kupita patsogolo kosalekeza kwa teknoloji yopanga pulasitiki, kutulutsa kwa mapaipi apulasitiki kwawonjezeka mofulumira, ndipo mitundu ya mankhwala yakhala yosiyana kwambiri.Komanso, mipope pulasitiki akwaniritsa chitukuko chachikulu ndi kusintha kamangidwe chiphunzitso ndi luso zomangamanga mu zomangamanga, ndipo anasonkhanitsa wolemera zinachitikira zothandiza, amene kulimbikitsa mapaipi pulasitiki kukhala ndi udindo wofunika kwambiri pomanga madzi ndi ngalande uinjiniya mapaipi, ndi kupanga chitukuko chosaimitsidwa. mayendedwe.
Ku China, mapaipi ambiri apulasitiki omwe amagwiritsidwa ntchito m'mapaipi operekera madzi amaphatikiza mapaipi operekera madzi a PVC-U, mapaipi a PP-R, mapaipi a aluminium-pulasitiki (PAP), mapaipi achitsulo-pulasitiki (SP), mapaipi a HDPE, ndi zina zambiri. Chitoliro cha HDPE changowonekera pamsika zaka makumi awiri zapitazi.Iwo utenga patsogolo luso kupanga ndi luso ndipo amapangidwa ndi extrusion otentha.Ili ndi mawonekedwe a kukana kwa dzimbiri, khoma losalala lamkati, kukana otsika, mphamvu yayikulu, kulimba kwabwino komanso kulemera kopepuka.
Pambuyo pa chitoliro chamadzi cha PVC-U, chitoliro cha HDPE chakhala chachiwiri chomwe chimagwiritsidwa ntchito kwambiri padziko lonse lapansi.Pakalipano, mapaipi apakati kapena apamwamba kwambiri a polyethylene a PE80 ndi PE100 ayenera kugwiritsidwa ntchito pofalitsa mpweya;sing'anga kapena mkulu kachulukidwe polyethylene mapaipi a PE80 ndi PE100 sukulu zambiri ntchito mipope madzi, ndi PE63 pang'onopang'ono inathetsedwa.Pankhani yopereka madzi, yomwe ikukula kwambiri ndi mapaipi a PE100, omwe akuyembekezeka kukula ndi 10% mzaka zisanu zikubwerazi.