I-ERW iyipayipi lensimbi eliqinile elingamelani nogesi, Ipayipi lensimbi eliqinile eliqinile lihlukaniswe ngokushintshana ngepayipi lensimbi elishiselwe kanye nepayipi lensimbi elishiselwe nge-DC ngezindlela ezimbili.

Welding AC ngokuhambisana frequencies ezahlukene zihlukaniswe low-frequency welding, IF welding, welding of ultra-IF kanye high-frequency welding. I-High-frequency welding isetshenziselwa ikakhulukazi ukukhiqizwa kwepayipi lensimbi elinezindonga ezincane noma ipayipi lensimbi eliwugqinsi, i-high frequency welding ibe yi-welding yokuxhumana kanye ne-induction welding. I-DC welding ngokuvamile isetshenziselwa ipayipi lensimbi enobubanzi obuncane. Ngakho-ke, mayelana nepayipi elihlanganisiwe, eline-high-frequency welded elifakwe epayipini le-ERW kuyinqubo yokushisela ye-high-frequency ukukhiqiza amapayipi e-ERW. Ukusebenza komkhiqizo okuthuthukisiwe kwe-ERW Longitudinal emkhakheni wokugcinwa nokuthutha uwoyela negesi, ubuholi bekhwalithi, ipayipi lensimbi elongayo.

Amapayipi ensimbi e-SAW ashoda nge-Submerged Arc Welding Steel Pipe, okuwukusetshenziswa kwenqubo yokudayiswa kwe-arc engaphansi kwamanzi ukuze enze insimbi, inqubo ikhiqiza ukuminyana okuphezulu kakhulu kwamanje, ungqimba lwe-flux ukuvimbela ukulahleka okusheshayo kokushisa, futhi kugxilwe ku- isifunda sokushisela. I-arc weld engaphansi kwekhwalithi ephezulu, ukusebenza kahle kokukhiqiza okuphezulu, i-arc kanye nentuthu izici ezimbalwa zepayipi elishiselwe i-arc elingaphansi kwamanzi lisetshenziswa kakhulu emikhunjini yokucindezela, ukukhiqizwa kwamapayipi, imishayo, uketshezi olunomfutho ophansi, ukusebenza kwensimbi. Imikhiqizo eyinhloko yamapayipi ensimbi e-SAW i-LSAW Steel Pipe, ipayipi yensimbi ye-Longitudinally Submerged Arc Welding LSAW, iwukusetshenziswa kokukhiqizwa kokushisela kwe-arc okungaphansi kwepayipi lensimbi eqondile.

Umehluko phakathierwfuthiwabonaipayipi lensimbi

Njengoba ipayipi lensimbi le-ERW kanye nepayipi lensimbi ye-SAW epayipini ngesikhathi sokwakhiwa, ukushisela kanye nenqubo kuhlukile, ukuze izinhlobo ezimbili zamapayipi ensimbi ekusebenzeni kukhona umehluko.

(1) Ikhwalithi yendawo yepayipi lensimbi ye-ERW iphakeme kune-spiral submerged arc weld pipe, i-ERW steel pipe surface ibushelelezi, ibushelelezi, yinhle, i-SAW ipayipi lensimbi eliqinisa insimbi yangaphakathi nangaphandle.

(2) Izinhlobo ze-ERW steel pipe weld defect ingaphansi kwepayipi lensimbi esaha. I-saw steel pipe ene-solvent efakiwe, izinhlobo eziningi zeziphambeko, ngaphezu kokukhubazeka kwevolumu, kukhona i-wire-line trap. I-ERW steel pipe weld ilimaza kuphela izintambo zocingo kanye nokushisela okuqondile, inqubo yokuhlola kulula ukuyilandela, kanye namaphutha ekuboniseni okuphezulu, lapho ukuntuleka kwe-ultrasonic ekhombisa amandla, kulula ukukubona.

(3) Ipayipi lensimbi le-ERW elihlobene nepayipi lensimbi elisaha esilinganisweni sokucindezeleka esiyinsalela liphansi. Njengoba ukuguqulwa kwepayipi le-ERW kunqubo yokuguquguquka ngokugcwele, kuhlanganiswe okusaqanda okulandelanayo okuyisicaba okuhambisana nosayizi, izinguquko ezima mpo nentamo, okwenza ingcindezi yensalela yepayipi le-ERW iba yincane. Ukuhlolwa ngokomzimba kubonise ukuthi ukucaciswa okufanayo, ipayipi le-ERW lempahla efanayo ngemva kokusikeka eduze kwe-eksisi, i-axial ne-transverse incision encane ukususwa kunepayipi elishiselwe i-arc elisontekile.

(4) ERW Pipe ukusebenza jikelele okufanayo, lapho ipayipi iba nesici, ukwahlulela steel scrap, vumela ukushisela. Ipayipi lensimbi le-SAW livunyelwe, nokusebenza kwepayipi lokushisela kanye nokusebenza kukonke akuhambelani, indawo yokushisela ijwayele ukucindezela ukuqhekeka kokugqwala. Ukuhlola kubonisa ukuthi i-stress corrosion fatigue test ERW ipayipi elisontekile elingaphansi kwe-arc elishiselwe ubude bepayipi kunempilo.