Ho tloaelehile hore liphaephe tsa tšepe tse entsoeng ka carbon li be le li-bubble tsa moea ka har'a weld, haholo-holo bophara bo boholo ba carbon seamless pipe pipe weld pores ha e ame feela ho tiea ha pipeline weld le ho baka ho lutla ha liphaephe, empa hape e fetoha ntlha ea induction ea corrosion. ka botebo e fokotsa matla le ho tiea ha weld..Mabaka a bakang porosity ka weld ke: mongobo, litšila, oxide scale le tšepe filings flux, tjheseletsa likarolo le kwahelang botenya, holim'a holim'a poleiti ea tšepe le ho phekoloa ha poleiti lehlakoreng tšepe, tshebetso tjheseletsa le phala tšepe. mokhoa oa ho theha, joalo-joalo Moqapi oa Flux.Ha welding e na le palo e loketseng ea CaF2 le SiO2, e tla itšoara le ho monya palo e kholo ea H2, 'me e hlahise HF e nang le botsitso bo phahameng le e ke keng ea qhibiliha ka tšepe e metsi, e ka thibelang ho thehoa ha li-pores tsa hydrogen.

Hangata li-bubble li hlaha bohareng ba sebaha sa weld.Lebaka le ka sehloohong ke hore hydrogen e ntse e patiloe ka har'a tšepe ea weld ka mokhoa oa li-bubble.Ka hona, tekanyo ea ho felisa sekoli sena ke ho tlosa mafome, oli, mongobo le mongobo pele ho terata ea welding le weld.le lintho tse ling, e lateloa ke phallo e tlameha ho omisoa hantle ho tlosa mongobo.Ho phaella moo, e boetse e sebetsa ho eketsa hona joale, ho fokotsa lebelo la ho tjheseletsa, le ho fokotsa lebelo la ho tiisa tšepe e qhibilihisitsoeng.

Botenya ba ho bokellana ha flux hangata ke 25-45mm.Boholo ba likaroloana tsa phallo le sekhahla se senyenyane se nkoa e le boleng bo phahameng, ho seng joalo ho sebelisoa boleng bo fokolang;lebelo le phahameng la hona joale le le tlase la welding le sebelisoa bakeng sa botenya ba ho bokella, mme boleng bo tlase bo sebelisoa ho fapana le hoo.Ha mongobo o phahame, phallo e hlaphohileng e lokela ho omisoa pele e sebelisoa.Sebabole (mapetso a bakoang ke sebabole).Mapetsong a bakoang ke sulfide sehlopheng sa ho arola sebabole se kenang tšepeng ea weld ha ho tjheseletsa lipoleiti tse nang le lihlopha tse matla tsa ho arola sebabole (haholo-holo tšepe e belang).Lebaka la sena ke boteng ba haedrojene ka sulfide ea tšepe le tšepe e nang le ntlha e tlaase ea ho qhibiliha sebakeng sa karohano ea sebabole.Ka hona, e le ho thibela sena hore se se ke sa etsahala, ho boetse hoa sebetsa ho sebelisa tšepe e bolailoeng ka halofo kapa tšepe e bolailoeng ka lihlopha tse fokolang tse nang le sebabole.