Umbhobho odityanisiweyo omncinci wobubanziikwabizwa ngokuba ngumbhobho wentsimbi odityanisiweyo omncinci, ongumbhobho wentsimbi owenziwe ngokuwelda ipleyiti yentsimbi okanye intsimbi yomtya emva kokuba ikhutshiwe.Inkqubo yokuvelisa umbhobho odityanisiweyo omncinci we-diameter ilula, ukusebenza kakuhle kwemveliso kuphezulu, kukho iintlobo ezininzi kunye neenkcukacha, kwaye iindleko zezixhobo zincinci, kodwa amandla aqhelekileyo angaphantsi kunombhobho wensimbi ongenamthungo.Ukususela ngo-1930, kunye nophuhliso olukhawulezayo lwemveliso eqhubekayo yomgangatho ophezulu wentsimbi yentsimbi kunye nokuphuculwa kwe-welding kunye nokuhlolwa kweteknoloji, umgangatho we-welds uphuculwe ngokuqhubekayo, kunye neentlobo kunye neenkcukacha zemibhobho edityanisiweyo encinci iye yanda kwaye. zitshintshwe kwiindawo ezininzi ngakumbi umbhobho wentsimbi engenamthungo.Umbhobho wentsimbi odityanisiweyo wahlulwe waba ngumbhobho odityanisiweyo othe tye kunye nombhobho odityanisiweyo we-spiral ngokohlobo lwe-weld.

Izikhewu ezisetyenziselwa imibhobho edibeneyo ene-diameter encinci ziiplati zetsimbi okanye ii-strips, ezahlulwe zibe yimibhobho ene-furnace-welded, i-electric-welded (i-resistance-welded) imibhobho kunye nemibhobho e-arc-welding ngokuzenzekelayo ngenxa yeenkqubo zabo zokudibanisa.Kukho iintlobo ezimbini zombhobho odityanisiweyo: umbhobho odityanisiweyo othe tye kunye nombhobho odityanisiweyo.Ngenxa yobume bayo bokuphela, ihlulwe ibe yimibhobho ejikelezileyo edibeneyo kunye nemibhobho edibeneyo (isikwere, isicaba, njl. njl.).

Inkqubo yokuvelisa umbhobho we-welded we-diameter encinci ilula, imveliso ephezulu, ixabiso eliphantsi kunye nophuhliso olukhawulezayo.Ukomelela kwemibhobho edityanisiweyo ye-spiral idla ngokuba phezulu kunemibhobho edityanisiweyo ethe tye.Imibhobho edibeneyo enobubanzi obukhulu inokuveliswa kwiibhilithi ezincinci.Imibhobho edibeneyo enobubanzi obuhlukeneyo inokuphinda iveliswe ngeebhilidi zobubanzi obufanayo.Nangona kunjalo, xa kuthelekiswa nombhobho ochanekileyo wobude obufanayo, ubude be-weld seam bunyuswe ngama-30 ukuya kwi-100%, kwaye isantya sokuvelisa siphantsi.Ke ngoko, imibhobho edityanisiweyo emincinci ingumthungo othe tye, kwaye imibhobho edityanisiweyo enobubanzi obukhulu idityanisiwe.