I-1, kwimeko yokungaphumeleli inkqubo ye-welding yombhobho, kufuneka ifaneleke ukunyusa ubude obugciniweyo, i-epoxy powder ekupheleni kwe-polyethylene layer inokuthintelwa ngenxa ye-pipe yensimbi imfumba ixesha elide, ukuhlwa kwesinyithi sombhobho obangelwa yi-3 enzima 3 I-PE anticorrosive iba ngumphetho ojijekileyo.

I-2, umbhobho we-Anticorrosive ixesha elide, ofakwe emoyeni ovulekileyo uya kugqunywa kumbhobho, uthintele ukukhukuliseka kwemvula, okubangela ukuphela kombhobho we-corrosion.

3, Ukuba umjikelo wolwakhiwo lwentsimi yombhobho mde, ibhrashi zesmear zinokuweldable anti-rust ipeyinti yepeyinti engenanto, ukunqanda umbhobho womhlwa obangelwa kukuhlwa ngexesha logcino lwepeyinti ye-PE emi-3 ibe ngumphetho ogoso.

Ngaphezulu kwe-4, ulawulo olungqongqo lwe-tube end egcinwe kwi-weld yokusila kunye nomgangatho ophezulu.Polyethylene kwindawo weld ukuthambeka kunye lonke umzimba umbhobho, ukwenza epoxy umgubo ogciniweyo ubude> 20 mm, ukuze kuthintelwe welds epoxy umgubo emazantsi umhlwa okubangelwa yokuqala 3 PE umaleko anticorrosion ibe edge warped.