Ka lilemo tse ngata, bophara bo boholo (li-inch tse 16 ho ea holimo) 'maraka oa lipeipi tsa metsi o ne o emetsoe ke Pipe ea tšepe (SP), Precast Concrete Cylindrical Pipe (PCCP), Ductile Iron Pipe (DIP) le PVC (Polyvinyl Chloride) pipe.Ka lehlakoreng le leng, pipe ea HDPE e ikarabella feela bakeng sa 2% ho isa ho 5% ea 'maraka o moholo oa lipeipi tsa metsi.
Sengoliloeng sena se ikemiselitse ho akaretsa litaba tsa kelello tse amanang le liphaephe tse kholo tsa HDPE le likhothaletso bakeng sa likhokahano tsa liphaephe, li-fittings, boholo, moralo, ts'ebetso le tlhokomelo.
Ho latela tlaleho ea EPA, litaba tsa kelello tse mabapi le liphaephe tse kholo tsa HDPE li theohela ho lintlha tse tharo tse kholo.Ntlha ea pele, ho na le ho hloka kutloisiso ka kakaretso ea sehlahisoa.Mererong ea masepala, palo ea bankakarolo e ka thatafatsa phetiso ea tsebo bakeng sa lihlahisoa tse amanang.Ka mokhoa o ts'oanang, basebetsi ka tloaelo ba sebelisa lihlahisoa le mahlale a tloaelehileng.Qetellong, ho hloka tsebo hona ho ka ba ha lebisa maikutlong a fosahetseng a hore HDPE ha e tšoanelehe bakeng sa lits'ebetso tsa metsi.
Bothata ba bobeli ba kelello bo bakoa ke maikutlo a hore ho sebelisa thepa e ncha ho eketsa kotsi, esita le ha tsebo e itseng e fumaneha.Basebedisi ba atisa ho bona HDPE e le sehlahisoa se secha bakeng sa kopo ea bona e khethehileng, ho tsoa sebakeng sa bona sa matšeliso hobane ha ba na phihlelo le eona.Ho hlokahala mokhanni e moholo ho kholisa lits'ebeletso ho leka lisebelisoa tse ncha le lits'ebetso.E boetse e khahla haholo.
Mokhoa o motle oa ho hlola mathata ana a nahanoang ke ho thusa ho lekanya likotsi tse nahanoang le ho bonts'a melemo e ka lekanyetsoang ea ho sebelisa lisebelisoa tse ncha.Hape, ho ka ba molemo ho sheba histori ea lihlahisoa tse tšoanang tse sebelisoang.Mohlala, lits'ebeletso tsa khase ea tlhaho esale li sebelisa liphaephe tsa polyethylene ho tloha bohareng ba bo-1960.
Le hoja ho batla ho le bonolo ho bua ka thepa ea 'mele le ea lik'hemik'hale ea liphaephe tsa HDPE, tsela e molemo ea ho thusa ho lekanya melemo ea eona ke ho hlalosa thepa ea eona mabapi le lisebelisoa tse ling tsa liphaephe.Phuputsong ea lits'ebeletso tse 17 tsa UK, bafuputsi ba hlalositse sekhahla sa ho hloleha ha lisebelisoa tse fapaneng tsa liphaephe.Karolelano ea litekanyetso tsa ho hlōleha ho lik'hilomithara tse 62 ho tloha ho ho hlōleha ha 20.1 pheletsong e phahameng ea phala ea tšepe ho ea ho ho hlōleha ha 3.16 karolong e tlaase ea pipe ea PE.Ntho e 'ngoe e thahasellisang e fumanoeng tlalehong ke hore tse ling tsa PE tse sebelisoang liphaepheng li entsoe lilemong tse fetang 50 tse fetileng.
Kajeno, baetsi ba PE ba ka theha meaho e matlafalitsoeng ea polymer ho ntlafatsa khanyetso ea ho hola butle, matla a thata, ductility, khatello e lumelletsoeng ea hydrostatic, le lisebelisoa tse ling tsa liphaephe.Bohlokoa ba lintlafatso tsena bo ke ke ba feteletsoa.Lilemong tsa bo-1980 le bo-2000, tlhahlobo ea khotsofalo ea lik'hamphani tse sebelisang lipeipi tsa PE e ile ea fetoha haholo.Khotsofalo ea bareki e ile ea fihla ho 53% lilemong tsa bo-1980, e nyolohela ho 95% lilemong tsa bo-2000.
Mabaka a mantlha a ho khetha thepa ea liphaephe tsa HDPE bakeng sa mehala e meholo ea phetisetso ea bophara e kenyelletsa ho feto-fetoha ha maemo, manonyeletso a fusible, ho hanyetsa kutu, ho lumellana le mekhoa ea tekheniki e senang trenchless joalo ka ho cheka ka tsela e otlolohileng, le ho boloka litšenyehelo.Qetellong, melemo ena e ka fumaneha feela ha ho lateloa mekhoa e nepahetseng ea kaho, haholo-holo fusion welding.
Litlhahiso: https://www.rtfpipe.com/news/large-diameter-hdpe-pipe-for-municipal-piping-systems.html
Nako ea poso: Jul-31-2022
