ERW jẹ ina-resistance welded, irin pipe, Resistance welded irin pipe ti pin si paṣipaarọ ti welded irin pipe ati DC welded, irin pipe ni meji awọn fọọmu.

AC alurinmorin ni ibamu pẹlu orisirisi awọn igbohunsafẹfẹ ti wa ni pin si kekere-igbohunsafẹfẹ alurinmorin, IF alurinmorin, alurinmorin ti ultra-IF ati ki o ga-igbohunsafẹfẹ alurinmorin. Alurinmorin-igbohunsafẹfẹ ti a lo ni akọkọ fun iṣelọpọ paipu irin tinrin tabi paipu irin ogiri, alurinmorin igbohunsafẹfẹ giga sinu alurinmorin olubasọrọ ati alurinmorin fifa irọbi. Alurinmorin DC ti wa ni gbogbo lo fun kekere-rọsẹ irin paipu. Nitorinaa, ni awọn ofin ti okeerẹ, pipe-igbohunsafẹfẹ welded pipe ti o wa ninu paipu ERW jẹ ilana alurinmorin igbohunsafẹfẹ giga-giga lati ṣe awọn paipu ERW. ERW Longitudinal to ti ni ilọsiwaju ọja iṣẹ ni aaye ti epo ati gaasi ipamọ ati gbigbe, didara olori, diẹ ti ọrọ-aje irin pipe.

SAW, irin pipes jẹ kukuru ti Submerged Arc Welding Steel Pipe, eyiti o jẹ lilo ilana titaja arc submerged lati ṣe irin, ilana naa ṣe agbejade iwuwo lọwọlọwọ giga pupọ, ipele ṣiṣan lati ṣe idiwọ isonu iyara ti ooru, ati idojukọ ninu agbegbe alurinmorin. Submerged arc weld ti didara giga, ṣiṣe iṣelọpọ giga, arc ati ẹfin awọn abuda diẹ ti arc welded pipe ti wa ni lilo pupọ ni awọn ohun elo titẹ, iṣelọpọ paipu, awọn opo, omi titẹ kekere, awọn iṣẹ irin. Awọn ọja akọkọ ti awọn paipu irin SAW LSAW irin pipe, gigun gigun ti Arc Welding Steel Pipe LSAW irin pipe, o jẹ lilo iṣelọpọ alurinmorin arc ti o ni ṣiṣan ti paipu irin okun taara.

Iyatọ laarinerwatiriirin pipe

Bi ERW irin paipu ati SAW irin pipe ni paipu nigba lara, alurinmorin ati ilana ti o yatọ si, ki meji iru paipu irin ni išẹ nibẹ ni o wa diẹ ninu awọn iyato.

(1) ERW, irin pipe dada didara jẹ superior si ajija submerged aaki welded pipe, ERW irin pipe dada jẹ dan, dan, lẹwa, SAW irin pipe ti abẹnu ati ti ita weld imuduro.

(2) ERW irin paipu weld abawọn orisi jẹ kere ju awọn ri irin paipu. Ri paipu irin pẹlu epo ti a fi silẹ, awọn iru abawọn diẹ sii, ni afikun si awọn abawọn iwọn didun, pakute laini waya wa. ERW irin pipe weld abawọn nikan waya-laini ati ki o taara welds, awọn se ayewo ilana rọrun lati tẹle, ati awọn abawọn ninu awọn ti o pọju otito ni, ni kete ti aini ti ko boju mu, ultrasonic afihan awọn lagbara, rọrun lati ri.

(3) paipu irin ERW ti o ni ibatan si paipu irin ri ni ipin aapọn aloku jẹ kekere. Niwọn bi abuku paipu ERW ninu ilana abuku diẹ sii ni kikun, papọ pẹlu iwọn alapin alapin ti o tẹle, awọn iyipada inaro elliptical ati ọrùn, ṣiṣe wahala aloku paipu ERW di kere. Idanwo ti ara fihan pe awọn pato kanna, ohun elo ERW paipu kanna lẹhin lila lẹgbẹẹ ipo, axial ati awọn oju-ọna ifapa nipo nipo kekere ju ajija submerged arc welded pipe.

(4) ERW Pipe ìwò išẹ ti kanna, nigbati paipu di alebu awọn, irin alokuirin idajọ, gba alurinmorin. SAW irin paipu laaye, ati pipe alurinmorin išẹ ati ki o ìwò išẹ jẹ aisedede, alurinmorin ibi prone to wahala ipata wo inu. Awọn adanwo fihan pe wahala ipata rirẹ igbeyewo ERW paipu ajija submerged aaki welded pipe ipari ju aye.