1. Ngaphansi kwesimo sokungathinti ukushiselwa kwenozili, ubude obugciniwe be-epoxy powder ekugcineni kwesendlalelo se-polyethylene kufanele bukhuliswe ngokufanelekile ukuze kuvinjwe i-3PE anti-corrosion warping ebangelwa isikhathi eside sokupakishaipayipi lensimbikanye nokugqwala okukhulu kwensimbi kokuphela kwepayipi.

2. Uma amapayipi avimbela ukubola embondelene endaweni evulekile isikhathi eside, kufanele ambozwe emaphethelweni epayipi ukuze amanzi emvula angagqwali futhi abangele ukugqwala okukhulu kokuphela kwepayipi.

3. Uma isikhathi sokwakhiwa kwepayipi siside, upende ovimbela ukugqwala oshiselekayo ungapendwa ensimbi engenalutho ekugcineni kwepayipi ukuze kuvinjelwe ungqimba olulwa nokugqwala lwe-3PE ukuthi lungaguquguquki ngenxa yokugqwala ngesikhathi sokugcinwa.

4. Lawula ngokuqinile ikhwalithi yokugaya ye-welding seam egcinwe ekugcineni kwepayipi.Ingaphandle le-polyethylene groove e-weld iyafana nezinye izingxenye zomzimba wepayipi.Gcina i-epoxy powder isikhathi eside kuno-20mm ukuze uvimbele okungaphansi kwe-epoxy powder ekushiseleni ukuthi kungagqwali kuqala futhi kubangele ungqimba lwe-3PE olulwa nokugqwala lwe-warp.

Kufanele kuqashelwe ekugayweni kwamapayipi okushisela:

1) Kusukela ekuqaleni kwe-welding seam yokugaya kuya ku-polyethylene chamfer, kufanele kube nesigaba esiyisicaba se-polyethylene ungqimba we-10-20mm ngaphandle kokuphakama kwe-weld okweqile futhi okufana nomzimba wepayipi ukuze kuqinisekiswe ukukhishwa nokuhlanganiswa kwe-polyethylene. i-groove ekugcineni kwekhwalithi yepayipi.

I-2) Ukuqiniswa kwe-weld seam ngemva kokugaya kufanele kube ngokuguquguqukayo ngangokunokwenzeka ngomzimba wepayipi, futhi akufanele kube nokuqiniswa okusobala ukuvimbela i-epoxy powder ukuthi ingapholishwa lapho ugaya i-chamfer ye-polyethylene layer.

3) I-chamfer ye-top evuliwe ye-weld kanye nesigaba soshintsho sendawo elungisiwe kufanele futhi ifane ne-chamfer ye-polyethylene layer (≤30°) ukuze amandla okucindezela we-squeeze roller akwazi ukucindezela ngokulinganayo ungqimba lwe-polyethylene Ukuvimbela ungqimba lwe-polyethylene kusuka ekugoqeni ngenxa yokunamathela okungalungile kwengqimba ephikisana nokugqwala emseleni.

5. I-epoxy powder coating yesigaba esigodliwe ingabambezela i-warping enqenqemeni ebangelwa ukugqwala kuphela lapho ukuvikela kuqedile.Ukucutshungulwa kwepayipi lasekhaya le-polyethylene bevel kwenziwa ngokugaya isondo lensimbi, okuzolimaza i-epoxy powder coating.I-bevel kufanele yenziwe ngomshini esikhundleni salokho, futhi ungqimba olungezansi lomkhawulo wommese kufanele lukhawulelwe idivayisi ukuze ulawule ukujula kokusika kwethuluzi, ukuze ungalimazi i-epoxy powder coating.