Umahluko ophambili onxulumene nezi zinto zimbini zibalulekileyo kwimizi-mveliso yinkqubo yazo yokuvelisa echaphazela kakhulu iimpawu zazo zoomatshini.
1. Iipayipi zentsimbi ezingenamthungo (ERW / SMLS)
Iipayipi ezingenamthungo azinamthungo okanye ijoyinti yokuwelda. Zihlala zenziwa ngenkqubo yokuqengqeleka eshushu, okanye inkqubo yokutsala ebandayo, apho i-billet yentsimbi eqinileyo ejikelezileyo igqojozwa phakathi kubushushu obuphezulu.
Inzuzo ephambiliNgenxa yokuba imibhobho engenamthungo ayinamthungo odibeneyo, ukuqina kwesakhiwo kumbhobho ongenamthungo kuyafana kubude bombhobho. Oku kususa amathuba okuba "umthungo ungasebenzi," eyona ndawo ichaphazeleka kakhulu kuyo nayiphi na imibhobho enemthungo.
Ubukhulu obuqhelekileyo: Ubukhulu bale mveliso bufumaneka rhoqo ngokweI-API 5L (umbhobho womgca),I-ASTM A106kunyeI-ASTM A53(kwizicelo zobushushu obuphezulu).
2. Iipayipi zentsimbi ezidityanisiweyo (ERW, LSAW, SSAW)
Iipayipi ezidityanisiweyo zenziwe ngepleyiti yesinyithi esisicaba okanye umcu (ikhoyili) owenziwe waba yimilo engqukuva. Emva koko imiphetho idityaniswe ngendlela yokudityanisela enamandla aphezulu. Iintlobo ziquka ukudityanisela ukuxhathisa ngombane (Electric Resistance Welding).I-ERW), Ukuwelda kwe-Arc engaphantsi komhlaba eLongitudinal (I-LSAW), Ukuwelda kwe-Arc efakwe kwi-Spiral (i-SSAW).
Inzuzo ephambili: Imveliso yetekhnoloji ephezulu iphucule kakhulu ukuthembeka komthungo we-weld. Umbhobho we-welded ukwafumaneka ngobukhulu obukhulu kune-seamless, okuvumela uyilo olukhulu kunye nokuguquguquka kokusetyenziswa.
Ubukhulu obuqhelekileyo: Ngokuhambelana ne-ASTM A53, i-API 5L kunye nezinye iinkcukacha ezininzi zesakhiwo sengingqi.
