Ubheka imininingwane yepayipi bese ubona amakhodi afana ne-PE80 kanye ne-PE100. Leli gama lobuchwepheshe liyadida, futhi ukukhetha uhlobo olungalungile kungalimaza ubuqotho besikhathi eside bephrojekthi yakho.

I-PE100 isho ukuthi ipayipi lenziwe ngesizukulwane sakamuva se-High-Density Polyethylene (HDPE). I-“100″ isho Amandla Aphansi Adingekayo (MRS) angu-10.0 MPa. Lokhu kuyenza ibe yinto eqinile, eqinile evumela izindonga zamapayipi ezincane ngesilinganiso esifanayo sokucindezela.

Uma ngikhuluma nabaphathi bokuthenga abanjengoBudi, lawa magremu ezinto ezibonakalayo ayisihloko esivame ukukhulunywa ngaso. Kulula ukuwabona njengezinombolo nje, kodwa i-“PE100” imelela amashumi eminyaka entuthuko yesayensi yezinto ezibonakalayo. Kuyisithembiso samandla, ukuthembeka, kanye nokusebenza kwesikhathi eside. Ukuqonda ukuthi le khodi elula isho ukuthini kuyisihluthulelo sokwenza isinqumo sokuthenga esihlakaniphile esiqinisekisa impumelelo yezinhlelo zakho zokuphatha amanzi eminyakeni ezayo. Ake sihlaziye ukuthi leli gremu lisho ukuthini ngempela kumaphrojekthi akho.

Ingabe i-PE100 ingcono kune-PVC?

I-PVC iyinto ejwayelekile futhi ivame ukuba nezindleko eziphansi kusengaphambili. Lokhu kwenza kube lula ukuyikhetha, kodwa ukuqina kwayo kanye nendlela yokuhlanganisa kungaholela ezinkingeni zesikhathi esizayo kanye nezindleko eziphezulu.

Kumapayipi amanzi agqitshiwe, i-PE100 ngokuvamile ingcono. Iyakwazi ukuguquguquka, ukumelana okukhulu nokushayisana, kanyeamalunga ahlanganisiwe angavuzianikeza ukuthembeka okuphezulu kwesikhathi eside. Amajoyinti e-PVC afakwe isithako esinyibilikayo noma afakwe igesi ngokuvamile ayiphuzu elibuthakathaka kakhulu ohlelweni, inkinga ebangelaukushisela ukuhlanganiswakuqeda ngokuphelele.

Nakuba zombili izinto zilungele ukusetshenziswa okuthile, umehluko wazo oyisisekelo uyacaca ezimweni ezinzima. Inzuzo eyodwa enkulu ye-PE100 yindlela yokuhlanganisa. Uma ushisa i-fuse ipayipi le-HDPE, i-joint iba yingcezu eyodwa, eqinile yepulasitiki, eqinile njengepayipi uqobo. Ayikwazi ukuvuza. Amajoint e-PVC, athembele kusimende we-solvent noma ama-gasket erabha, aletha iphuzu elingaba khona lokwehluleka. Ngokuhamba kwesikhathi, ukunyakaza komhlabathi kanye nezinguquko zengcindezi kungafaka la majoint engcupheni. Ukuguquguquka kwe-PE100 kuvumela nokufakwa okungenamisele, okunganciphisa kakhulu isikhathi sokwakha kanye nezindleko, inzuzo enkulu ezindaweni ezinabantu abaningi zasemadolobheni. I-PVC, njengoba iqinile, idinga ukumba imisele evulekile yendabuko, okuphazamisayo futhi kubiza kakhulu.

Uyini umehluko phakathi kwe-PE 80 ne-PE100?

Ubona izingcaphuno ezimbili, eyodwa yepayipi le-PE80 kanye nenye ye-PE100. Izinombolo zibonakala zisondelene, kodwa ukukhetha izinga eliphansi ukuze wonge imali encane kungasho ukufaka ipayipi elibuthakathaka.

Inombolo ibhekisela ku-Minimum Required Strength (MRS) ngemva kweminyaka engu-50. I-PE100 ine-MRS engu-10.0 MPa, kanti i-PE80 ingu-8.0 MPa. Lokhu kwanda kwamandla okungu-25% kuvumela amapayipi e-PE100 ukuthi abe nezindonga ezincane kakhulu ngesilinganiso esifanayo sokucindezela.

IAmandla Adingekayo Aphansi (MRS)inani elichaza amandla esikhathi eside ento. Ososayensi bayayinquma ngokubeka ipayipi ngaphansi kwengcindezi nokulinganisa ukuthi kuthatha isikhathi esingakanani ukwehluleka, bese besebenzisa leyo datha ukubikezela amandla ayo esikhathini sempilo yenkonzo yeminyaka engu-50. Uma i-MRS iphakeme, kulapho into iqina khona.

Le nzuzo yamandla angu-25% ye-PE100 kune-PE80 ikunikeza izinzuzo ezimbili ezinkulu. Okokuqala, ngepayipi elinobukhulu obufanayo, i-PE100 ingamelana nokucindezela okuphezulu. Okwesibili, futhi okubaluleke kakhulu ukuze wonge imali, ungasebenzisa i-Ipayipi le-PE100 elinodonga oluncaneukuze kufinyelelwe isilinganiso esifanayo sokucindezela njengepayipi le-PE80 elijiyile. Udonga oluncane lusho ukuthi kusetshenziswa izinto ezincane zokusetshenziswa, okwenza ipayipi libe lula futhi lingabizi kakhulu. Ipayipi elilula lishibhile ukulithutha futhi kulula ukuliphatha endaweni. Udonga oluncane luphinde ludale ububanzi obukhulu bangaphakathi, okuthuthukisa ukugeleza kwamanzi futhi kunciphisa izindleko zokupompa phakathi nesikhathi sokuphila kwesistimu.

Yikuphi okungcono, i-HDPE noma i-PE?

Amagama athi PE kanye ne-HDPE avame ukusetshenziswa engxoxweni efanayo. Lokhu kungadida, kukwenze ucabange ukuthi uqhathanisa izinto ezimbili ezihluke ngokuphelele kanti akunjalo.

Lona umbuzo onzima, njengoba i-HDPE (High-Density Polyethylene) iyinto ekhethekileuhloboye-PE (i-Polyethylene). I-PE igama lomndeni elibanzi. Kumapayipi okucindezela amanzi negesi, i-HDPE iyisinqumo esifanele nesingcono kakhulu ngenxa yamandla ayo nokuqina kwayo.

Cabanga nge-“Polyethylene” (PE) njengegama lomndeni weqembu lonke lamapulasitiki. Ngaphakathi kwalo mndeni, kunezinhlobo eziningana ezahlukene ngokusekelwe ekubuneni kwama-molecule azo, okunquma izakhiwo zazo zomzimba.

• I-PE (i-Polyethylene):Isigaba sonke.
• I-LDPE (i-Polyethylene Ephansi):Iguquguquka kakhulu, isetshenziselwa izinto ezifana nezikhwama zepulasitiki namafilimu. Ayifaneleki kumapayipi okucindezela.
• I-HDPE (i-Polyethylene Enobuningi Obuphezulu):Iqine kakhulu, iqinile, futhi iqinile. Lena yimpahla ejwayelekile yamapayipi okucindezela asetshenziswa ekuhlinzekweni kwamanzi, ukusatshalaliswa kwegesi, kanye nokusetshenziswa kwezimboni.

Ngakho-ke, uma sikhuluma ngepayipi le-PE maqondana nokuphathwa kwamanzi, cishe njalo sikhuluma ngepayipi le-HDPE. Amabanga esixoxe ngawo ngaphambili, i-PE80 kanye ne-PE100, ayizigaba ezithile zokusebenza kwe-resin ye-HDPE. Ngakho-ke, umbuzo awusiwo “i-HDPE noma i-PE?” kodwa kunalokho, “Yiliphi ibanga le-HDPE elifanele iphrojekthi yami?”. Kunoma yikuphi ukufakwa okusha, i-PE100 grade HDPE iyona engcono kakhulu.

Ungakwazi yini ukushisela i-PE80 ku-PE100?

Udinga ukulungisa umugqa wamanzi omdala owenziwe nge-PE80. Isitokwe sakho esisha siphelele nge-PE100. Ukushintshwa kwe-weld phakathi kwezinto ezimbili kungabangela ukuphazamiseka okukhulu kwenkonzo.

Yebo, ungayishisela i-PE80 ngqo ku-PE100. Ngenxa yokuthi zombili zivela emndenini we-polyethylene, amapulasitiki azo azohlangana ndawonye. Kodwa-ke, kumele usebenzise amapharamitha okushisela e-PE80 yezinga eliphansi, futhi ijoyinti lizoqina kuphela njengejoyinti le-PE80.

Lona umbuzo obaluleke kakhulu wokulungisa nokulungisa. Ikhono lokuhlanganisa amamaki ahlukene liyinzuzo enkulu ye-HDPE. Ngenxa yokuthi zombili i-PE80 ne-PE100 zenziwe nge-polymer efanayo eyisisekelo, izakhiwo zazo zama-molecule ziyahambisana futhi zizohlangana ndawonye ngesikhathi sokushiswa kokushisa ukuze kwakheke isibopho esiqinile nesihlala njalo.

Kodwa-ke, kunomthetho owodwa obalulekile okufanele uwulandele:sebenzisa njalo amapharamitha okushisela (izinga lokushisa, isikhathi, kanye nengcindezi) achazwe ngezinto ezisezingeni eliphansi.I-PE80 ne-PE100 zingaba nezindlela zokuncibilika ezihlukile kancane, futhi ukusebenzisa izilungiselelo ze-PE100 kungashisa kakhulu noma kulimaze ukuphela kwephayiphi le-PE80, okuholela ekuhlanganeni okubuthakathaka. Into yesibili okufanele uyikhumbule ukuthi uhlelo luqinile kuphela njengesixhumanisi salo esibuthakathaka kakhulu. I-joint ehlanganisiwe kanye nengxenye yonke yephayiphi kuzoba nesilinganiso sokucindezela kanye nesici sokusebenza sephayiphi le-PE80, hhayi i-PE100. Ngenkathi kumaphrojekthi amasha sihlala sincoma i-PE100, lokhu kuhambisana kuphelele ekwandiseni noma ekulungiseni ingqalasizinda endala.

Isiphetho

I-PE100akuyona nje ikhodi; iyizinga le-HDPE esebenza kahle kakhulu. Amandla ayo aphezulu kanye nokuthembeka kwayo kwenza kube yindinganiso yesimanje yokwakha amapayipi amanzi aphephile futhi ahlala isikhathi eside.