Iyo diki-diameter welded pombi inonziwo diki-diameter welded simbi pombi, inova pombi yesimbi inogadzirwa nekumoneredza ndiro yesimbi kana simbi yemutsetse mushure mekudzvanywa. Iyo nzira yekugadzira yediki dhayamita welded pombi iri nyore, kugadzirwa kwakanaka kwakakwira, kune akawanda marudzi uye zvakatemwa, uye mutengo wemidziyo idiki, asi simba rakawanda rakaderera pane iro resimbi isina musono pombi. Kubva kuma1930s, nekukasira kukura kwekuenderera mberi kwekugadzirwa kwemhando yepamusoro simbi yesimbi uye kuvandudzwa kwewelding uye tekinoroji yekuongorora, mhando yewelds yakaramba ichivandudzwa, uye siyana uye zvirevo zvemapaipi madiki-diameter welded ari kuwedzera uye. yakatsiviwa muminda yakawanda uye yakawanda seamless simbi pombi. Welded simbi pombi inokamurwa kutwasanuka musono welded pombi uye spiral welded pombi maererano chimiro weld.

Iwo ma blanks anoshandiswa kune madiki-diameter welded pombi mahwendefa esimbi kana mitsetse, iyo yakakamurwa kuita mapaipi akaiswa muchoto, emagetsi-welded (resistance-welded) pombi, uye otomatiki arc-welded pombi nekuda kweakasiyana maitiro ewelding. Kune marudzi maviri epombi yakashongedzwa: yakatwasuka musono wakaiswa pombi uye spiral welded pombi. Nekuda kwechimiro chayo chekupedzisira, chakakamurwa kuita mapaipi akakomberedzwa akakomberedzwa uye akasarudzika-akaumbwa (square, flat, etc.) welded pombi.

Iyo nzira yekugadzira yediki-diameter welded pombi iri nyore, yakakwirira kugadzirwa kwehunyanzvi, mutengo wakaderera uye kukurumidza kusimudzira. Kusimba kwepombi dzakaiswa welded dzinowanzokwirira kupfuura dzepombi dzakaiswa seam dzakarukwa. Welded pombi ane madhayamita akakura anogona kugadzirwa kubva yakamanikana mabheti. Welded mapaipi ane madhayamita akasiyana anogonawo kugadzirwa nemabhillet ehupamhi hwakafanana. Nekudaro, kana zvichienzaniswa neiyo yakatwasuka seam pombi yehurefu hwakafanana, iyo weld seam kureba inowedzerwa ne30 kusvika 100%, uye kukurumidza kwekugadzira kwakadzikira. Naizvozvo, mapaipi madiki-diameter akaiswa welded anonyanya kutwasanuka seam, uye mahombe-diameter akaiswa welded anowanzo spiral welded.