Ipayipi elingcwatshiweisebenza njengenye yezinsiza ezibalulekile zenkampani ehambisa uwoyela negesi, ubunjiniyela baphansi, obuxhumene nezinsizakusebenza ezikhuphuka nomfula kanye nabasebenzisi besixhumanisi, ngenxa yepayipi isikhathi eside ligqitshwe emhlabathini, ngokuhamba kwesikhathi, izici zenhlabathi yangaphandle kanye nokuhlaliswa kwendawo. izici, ukugqwala kwamapayipi, ukubhoboza, ukuvuza, amasimu namazwe anokulahlekelwa okukhulu.Ngokwakhiwa, ukulahlekelwa kwezomnotho okubangelwa ipayipi likawoyela kanye nokugqwala kwepayipi legesi kungahlukaniswa kube ukulahlekelwa okuqondile nokungaqondile.Ukulahlekelwa okuqondile kufaka phakathi: ukushintshwa kwempahla kanye nezimali zezingxenye, ukulungisa nokugqwala, njll.;ukulahlekelwa okungaqondile kuhlanganisa: ukukhiqizwa okulahlekile, ukugqwala, ukuvuza okubangelwa ukulahleka komkhiqizo, ukunqwabelana kwemikhiqizo egqwalile noma ukugqwala okudalwe ukulahlekelwa, ukulahlekelwa okungaqondile kunokulahlekelwa okuqondile futhi okunzima ukukulinganisela.Ukugqwala kwamapayipi ngaphezu kokucabangela ukulahlekelwa okukhulu kwezomnotho, kungase futhi kubangele ukuvuza kwezinto eziyingozi, kungcolise indawo ezungezile, noma kuholele ngisho nasekusengozini yenhlekelele engazelelwe ekuphepheni komuntu siqu.Ngokuthuthwa kwamapayipi amabanga amade okuqoqa igesi yemvelo kanye nenethiwekhi yamapayipi okuthutha, ubuchwepheshe bokugqwala bangaphandle bepayipi kanye nekhwalithi yokwakha kuhlobene ngokuqondile nokusebenza okuphephile nempilo yesevisi yepayipi.Indawo yokuwela amapayipi enezindawo eziyinkimbinkimbi, izakhiwo zenhlabathi ziyahlukahluka kakhulu, ipayipi lensimbi eligqitshiwe lidinga ukuthatha izinyathelo zokugqwala ezihlukile zangaphandle.Izici eziyinhloko zepayipi lokuthuthukiswa kobuchwepheshe bokugqwala kwangaphandle kubonakala ezintweni ezisebenza kahle zokulwa nokugqwala, inhlanganisela, impilo ende kanye nomnotho omuhle.

Imikhiqizo yetheyiphu enamathela ukugqwala ikakhulukazi i-polyethylene anticorrosion tape, i-polypropylene fibre corrosion tape, i-660 PE anti-corrosion tape, amateyipu amalahle ethayela epoxy abandayo, i-polyethylene anticorrosion tape kanye ne-polypropylene fibre corrosion tape ukuhlangabezana nobubanzi obuhlukahlukene bobunjiniyela .Inesibopho esiqinile ne-adhesion esekelayo, ukumelana nomthelela kanye nomdlalo omuhle nokuvikelwa kwe-cathodic, eNyakatho Melika, eNingizimu Melika nakweminye iphrojekthi yamapayipi asekhaya.

I-Polyolefin ye-Three-tier structure (PE) yathuthukiswa ngempumelelo eYurophu ngeminyaka yawo-1980 futhi iqala ukuyisebenzisa i-FBE enhle yokulwa nokugqwala, ukunamathela, ukumelana okuphezulu nokuhlakazeka kwe-cathodic kanye nokungangenisi okuphezulu kwezinto ze-pololefin, inhlanganisela yokusebenza yezakhiwo ezinhle zemishini kanye nokumelana ukucindezeleka kwenhlabathi ukugqwala kwesakhiwo, ngokufika kwezicelo eziningi zobunjiniyela, ikakhulukazi emazweni aseYurophu, ukusetshenziswa kwayo kwaba umkhuba okhulayo.Isendlalelo esingaphansi se-PE epoxy coatings, ungqimba olumaphakathi lwe-adhesive ye-polymer, ungqimba olungaphezulu lwe-polyolefin.I-adhesive ingashintshwa i-polyolefin, equkethe iqembu le-polar elixhunywe kwibhondi ye-polyolefin-carbon eketangoni elikhulu.Ngakho-ke, i-adhesive ayikwazi ukuhlanganisa i-polyolefin eguquliwe phezulu, kodwa futhi ukusetshenziswa kweqembu le-polar eline-epoxy resin yokwelapha ukusabela.Le nhlanganisela yezici, ukuze kuzuzwe amandla amakhulu okubopha phakathi kokunamathiswa okuthathu, kuyilapho izakhiwo nezici zezendlalelo ezifanele ukwenza ukunamathela kwezendlalelo ezintathu kube okuhambisanayo.Ibonakala ngezindleko eziphakeme kanye nenqubo eyinkimbinkimbi.