[Inkcazo ngokubanzi] I-Polyethylene yiplastiki, eyaziwa ngokuba yi-high density ratio, ukuguquguquka kunye nokuzinza kweekhemikhali.Ifanelekile kuxinzelelo kunye nezicelo zemibhobho yoxinzelelo.Imibhobho ye-HDPE ngokuqhelekileyo yenziwe nge-polyethylene i-resin eyi-100, kunye nobuninzi be-930-970 kg / m3, malunga namaxesha angama-7 ensimbi.

I-Polyethylene yiplastiki, eyaziwa ngokuba yi-high density ratio, i-flexibility kunye nokuzinza kweekhemikhali.Ifanelekile kuxinzelelo kunye nezicelo zemibhobho yoxinzelelo.Imibhobho ye-HDPE ngokuqhelekileyo yenziwe nge-polyethylene i-resin eyi-100, kunye nobuninzi be-930-970 kg / m3, malunga namaxesha angama-7 ensimbi.Imibhobho elula kulula ukuyihambisa kunye nokuyifaka.I-polyethylene ayichaphazeleki yinkqubo ye-electrochemical corrosion, kwaye iqhelekile ukuba imibhobho ibonakale kwityuwa, i-asidi kunye ne-alkali.Ubuso obugudileyo betyhubhu ye-polyethylene ayiyi kugqwala, kwaye i-friction iphantsi, ngoko ityhubhu yeplastiki ayichaphazeli lula ukukhula kwe-microorganisms.Ukukwazi ukuxhathisa umonakalo wokubola kunye nokuhamba rhoqo kwenza ukuba iimfuno zokugcinwa kweepayipi ze-HDPe ziphantsi kakhulu.Umbhobho we-polyethylene unokwenziwa nge-resin eqinisiweyo, ehlelwe njenge-PE100-RC, kwaye yongezwa ukunciphisa ukukhula kokuqhekeka.Imibhobho eveliswayo ingaba nobomi benkonzo ende, kwaye i-polyethylene inenzuzo yezoqoqosho kumjikelezo wobomi beprojekthi.

Ngoku ukuba ukuqina kwemibhobho ye-HDPe kuchongiwe, uqoqosho lubaluleke kakhulu xa iipayipi ze-polyethylene zisetyenziselwa izicelo zokugcinwa kwamanzi.Xa kuthelekiswa nemibhobho yentsimbi ye-ductile, inzuzo ecacileyo kakhulu yeepayipi ze-polyethylene kukuba inokuthintela ukuvuza.Kukho iindidi ezimbini zokuvuza kombhobho: ukuvuza okudibeneyo, ukuvuza okugqabhukileyo kunye nokuvuza kwe-perforation, ekulula ukuphatha.

Ubungakanani beUmbhobho we-HDPEiphakathi kwe-1600 mm kunye ne-3260 mm, kwaye imibhobho emikhulu ekhoyo ngoku emarikeni ingasetyenziswa.Ukongeza kwiinkqubo zokubonelela ngamanzi kamasipala, iipayipi zeplastiki ezinobubanzi obukhulu ezenziwe nge-polyethylene nazo zingasetyenziselwa ukuchithwa kwamanzi olwandle kunye neendawo zokucocwa kwamanzi amdaka.Imibhobho emikhulu yobukhulu inokusuka kwi-315 cm ukuya kwi-1200 cm.I-diameter enkuluUmbhobho we-HDPeyomelele kwaye ithembekile.Emva kokungcwatywa emhlabeni, inokuqhuba amashumi eminyaka kwaye ifuna ukugcinwa okuncinci, ngoko ke ifaneleke kakhulu kwizicelo zokucoca amanzi amdaka.Ukuqina kombhobho we-polyethylene kwanda njengoko ubukhulu bawo bukhula, bubonisa ukusebenza okumangalisayo kokuchasana nokungcangcazela.Thatha inyikima ka-1995 e-Kobe eJapan njengomzekelo, iziseko zedolophu;yonke eminye imibhobho iyasilela kanye rhoqo nge-3 km, kwaye yonke inkqubo yemibhobho ye-HDPE inokusilela.

Iingenelo zombhobho we-HDPE: 1. Ukuzinza kakuhle kweekhemikhali: I-HDPE ayinayo i-polarity, ukuzinza kweekhemikhali ezilungileyo, ayizalisi i-algae kunye neebhaktheriya, ayilinganisi, kwaye iyimveliso ehambelana nokusingqongileyo.2. Amandla okudibanisa okulungileyo: sebenzisa i-socket fusion yombane okanye i-butt joint thermal fusion, kunye namalungu ambalwa kwaye akukho kuvuza.3. Ukumelana nokuhamba kwamanzi aphantsi: Umphezulu wangaphakathi weUmbhobho we-HDPeigudile, ine-coefficient yokumelana nokunxiba okuphantsi kunye nokuhamba okukhulu.4. Ukuchasana kakuhle kwiqondo lokushisa eliphantsi kunye ne-brittleness: ukushisa kwe-brittleness (-40), kwaye amanyathelo akhethekileyo okukhusela awafuneki ukwakhiwa kweqondo lokushisa eliphantsi.5. Ukuchasana kakuhle kwe-abrasion: Uvavanyo lokuthelekisa ukuchasana kwe-abrasion yeepayipi ze-polyethylene kunye neepayipi zetsimbi zibonisa ukuba ukuchasana kwe-abrasion yeepayipi ze-polyethylene ngamaxesha angama-4 kwimibhobho yensimbi.6. Ukuchasana nokuguga kunye nobomi benkonzo ende: Umbhobho we-HDPE unokugcinwa okanye usetyenziswe ngaphandle iminyaka engama-50 ngaphandle kokulimala yimitha ye-ultraviolet.