1. Phantsi kwemeko yokungachaphazeli i-welding ye-nozzle, ubude obugciniweyo be-epoxy powder ekupheleni kwe-polyethylene layer kufuneka kwandiswe ngokufanelekileyo ukukhusela i-3PE anti-corrosion warping ebangelwa ixesha elide lokupakisha.umbhobho wentsimbikunye nentsimbi enzulu yokubola kombhobho ekupheleni.

2. Xa imibhobho ye-anticorrosive ifakwe kwindawo evulekileyo ixesha elide, kufuneka igqunywe kwiindawo eziphelweni zombhobho ukukhusela amanzi emvula ukuba angagqwali kwaye abangele ukugqwala okukhulu kweephelo zombhobho.

3. Ukuba ixesha lolwakhiwo lombhobho lide, ipeyinti edityanisiweyo echasene nomhlwa inokupeyintwa kwintsimbi engenanto yokuphela kombhobho ukuthintela umaleko wokuchasana nomhlwa we-3PE ukuba ungajiki ngenxa yokuhlwa ngexesha lokugcinwa.

4. Lawula ngokungqongqo umgangatho wokugaya we-welding seam egcinwe ekupheleni kombhobho.Umphandle we-polyethylene groove kwi-weld iyafana namanye amalungu omzimba wombhobho.Gcina i-epoxy powder ixesha elide kune-20mm ukukhusela i-bottom ye-epoxy powder kwi-weld ekubeni i-corrode kuqala kwaye ibangele i-3PE anti-corrosion layer of warp.

Ingqalelo kufuneka ihlawulwe ekusileni imibhobho yokuphela kwe weld:

I-1) Ukususela ekuqaleni kwe-welding seam yokusila ukuya kwi-chamfer ye-polyethylene, kufuneka kubekho icandelo elisicaba le-polyethylene layer ye-10-20mm ngaphandle kokuphakama kwe-weld engaphezulu kunye nokufana nomzimba wombhobho wokuqinisekisa ukukhutshwa kunye nokubopha i-polyethylene. groove kumgangatho wokuphela kombhobho.

I-2) Ukuqiniswa kwe-weld seam emva kokusila kufuneka kube ngokugungxula ngokusemandleni kunye nomzimba wombhobho, kwaye kungabikho ukuqiniswa okucacileyo ukukhusela i-epoxy powder ukuba icocwe xa ugaya i-chamfer ye-polyethylene layer.

3) I-chamfer ye-top engabonakaliyo ye-weld kunye necandelo lenguqu yendawo elungisiweyo kufuneka ifane ne-chamfer ye-polyethylene layer (≤30°) ukwenzela ukuba amandla okucoca i-squeeze roller angakwazi ukucinezela ngokulinganayo umgca we-polyethylene Ukuthintela umgca we-polyethylene ukusuka kwi-curling ngenxa yokubambelela kakubi kwe-anti-corrosive layer kwi-groove.

5. I-epoxy powder coating yecandelo eligciniweyo inokulibazisa i-edge warping ebangelwa ukubola kuphela xa ukukhuselwa kuphelile.Umbhobho wasekhaya ophela i-polyethylene bevel processing yenziwa ngentsimbi yentsimbi yokusila, eya konakalisa i-epoxy powder coating.I-bevel kufuneka yenziwe ngoomatshini endaweni yoko, kwaye umgangatho ophantsi we-knife-edge kufuneka ukhawulelwe ngesixhobo sokulawula ubunzulu bokusika isixhobo, ukuze ungonakalisi i-epoxy powder coating.