Umehluko omkhulu phakathi kwamapayipi amabili ashiselwe wepayipi elihlanganisiwe elivunguzayo kanye nepayipi elihlanganisiwe eliqondile umehluko wefomu le-welding.

Ipayipi elishiselwe i-Spiral iyinsimbi ene-carbon structural steel ephansi noma i-alloy structural steel strip egoqwe ibe ishubhu elingenalutho eline-engeli ethile ye-helix (ebuye ibizwe ngokuthi i-engeli yokuma), bese ishiselwa futhi yenziwe ilunga lepayipi, elingasebenzisa umucu omncane. insimbi Ukukhiqizwa kwamapayipi amakhulu ensimbi ububanzi.I-Spiral welded pipe ikakhulukazi i-spiral submerged arc welded pipe (SSAW), evame ukusetshenziswa ekwakhiweni kwamapayipi egesi ahlukahlukene e-China.Ukucaciswa kwayo kuvezwa “ngobubanzi bangaphandle * ukujiya kodonga”.Amapayipi ashiselwe ngo-Spiral ashiselwe ohlangothini olulodwa futhi ashiselwe kabili emaceleni.Ipayipi elishiselwe kufanele liqinisekise ukuthi ukuhlolwa kwe-hydraulic namandla okuqina nokusebenza okugoqa okubandayo kwe-weld kuyahambisana nemithethonqubo.

Ipayipi elihlanganisiwe le-seam eliqondile liyi-high-frequency current kanye nesinyathelo somphumela oseduze okufanele wenziwe ungqimba lwe-solder ngaphambi kokuba i-welding yakhelwe umshini wokubumba, futhi umkhawulo we-tube ongenalutho uyafudumala futhi uncibilike, futhi uhlanganiswe. ngaphansi kwamandla athile okucindezela, ukubumba okupholisa.Ipayipi elishiselwe ngomthungo oqondile we-high-frequency straight lisetshenziswa lapho unqenqema lwepayipi elingenalutho lincibilikiswa yi-high-frequency current(ERW), ebizwa ngokuthi i-straight seam submerged arc welded pipe (LSAW) ngokuncibilika nge-arc kagesi.

Amandla epayipi elishiselwe okuvunguzayo ngokuvamile aphakeme kunalawo epayipi elishiselwe ngokuqondile.Inqubo yokukhiqiza eyinhloko i-arc welding engaphansi kwamanzi.Ipayipi elishiselwe elivunguzayo lingakhiqiza amapayipi ashiselwe anamadayimitha epayipi ahlukene anobubanzi obufanayo bezikhala, futhi lingakhiqiza namapayipi ashiselwe anobubanzi obukhudlwana anezikhala ezincane.

Inqubo yokukhiqiza ipayipi elihlanganisiwe le-seam eliqondile lilula, ikakhulukazi inqubo yokukhiqiza, ehlukaniswe ngamapayipi ashiselwe imvamisa ephezulu ashiselwe ipayipi elihlanganisiwe kanye ne-arc engaphansi ephothelwe ipayipi elihlanganisiwe eliqondile.Ipayipi elihlanganisiwe le-seam eliqondile linokukhiqiza okuphezulu, izindleko eziphansi kanye nokuthuthukiswa okusheshayo.

Nokho, uma kuqhathaniswa nepayipi eliqondile elishiselwe ipayipi lobude obufanayo, ubude be-weld bukhuphuka ngo-30 kuya ku-100, futhi isivinini sokukhiqiza siphansi.Ngakho-ke, amapayipi ashiselwe ububanzi amancane ashiselwe ngokuvamile amthungo aqondile, kuyilapho amapayipi amakhulu ashiselwe ashiselwe ngokuvamile athandelene.