Umbhobho odityanisiweyo omncinci we-diameter ubizwa ngokuba ngumbhobho wensimbi odityanisiweyo omncinci, ongumbhobho wensimbi owenziwe ngokudibanisa ipleyiti yentsimbi okanye intsimbi yentsimbi emva kokuba idibene. 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. Ukusukela ngeminyaka yoo-1930, kunye nophuhliso olukhawulezayo lwemveliso eqhubekayo yentsimbi ekumgangatho ophezulu kunye nophuculo lwe-welding kunye nokuhlola itekhnoloji, umgangatho wee-welds uphuculwe ngokuqhubekayo, kwaye iintlobo kunye neenkcukacha zemibhobho edityanisiweyo encinci ziye zanda 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. Iibhobho ezidibeneyo ezinobubanzi obuhlukeneyo nazo zinokuveliswa 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.