Inqubo Yepayipi Elishiselwe

I-Electric Resistance Welding Process (ERW)

Ipayipi Lensimbi Enqubweni yokushisela ukumelana, amapayipi akhiqizwa ukwakhiwa okushisayo, nokubandayo kweshidi lensimbi eyisicaba ku-geometry ye-cylindrical. Ugesi ube usudlula emaphethelweni wesilinda sensimbi ukuze ushisise insimbi futhi wenze isibopho phakathi kwamaphethelo kuze kufike lapho ziphoqeleka khona ukuhlangana. Ngesikhathi senqubo ye-REG, izinto zokugcwalisa zingasetshenziswa. Kunezinhlobo ezimbili ze-resistance welding: i-high-frequency welding kanye ne-rotation wheel welding.

Isidingo sokushisela imvamisa ephezulu sisukela ekuthambekeni kwemikhiqizo eshiselwe imvamisa ephansi ukuthi ibe nokugqwala okukhethekile kwamalunga, ukuqhekeka kwehhuku, kanye nokungahlanganisi kahle kwamalunga. Ngakho-ke, izinsalela eziqhumayo zempi yezinga eliphansi azisasetshenziselwa ukwenza amapayipi. Inqubo ye-ERW yemvamisa ephezulu isasetshenziswa ekukhiqizeni amashubhu. Kunezinhlobo ezimbili zezinqubo ze-REG zefrikhwensi ephezulu. I-high-frequency induction welding kanye ne-high-frequency contact welding yizinhlobo ze-high-frequency welding. Kwi-welding ye-high-frequency induction welding, i-welding current idluliselwa kumpahla ngokusebenzisa ikhoyili. Ikhoyili ayihlangani nepayipi. Amandla kagesi akhiqizwa endaweni yeshubhu yinkundla kazibuthe ezungeze ishubhu. Ku-welding ye-high-frequency contact welding, amandla kagesi adluliselwa ezintweni ngokusebenzisa othintana nabo emgqeni. Amandla we-welding asetshenziswa ngqo kwipayipi, okwenza inqubo iphumelele. Le ndlela ivame ukukhethwa ekukhiqizeni amapayipi anama-diameter amakhulu kanye nokuqina kodonga oluphakeme.

Olunye uhlobo lokumelana nokushisela inqubo yokushisela isondo elijikelezayo. Phakathi nale nqubo, amandla kagesi adluliselwa ngesondo lokuxhumana endaweni yokushisela. Isondo lokuxhumana nalo lidala ingcindezi edingekayo yokushisela. I-Rotary contact welding ngokuvamile isetshenziselwa izinhlelo zokusebenza ezingakwazi ukufaka izithiyo ngaphakathi kwepayipi.

I-Electric Fusion Welding Process (EFW)

Inqubo yokushisela inhlanganisela kagesi ibhekisela ekushiseleni kwe-electron beam yepuleti lensimbi kusetshenziswa ukunyakaza kwesivinini esikhulu kwe-electron beam. Umthelela oqinile wamandla e-kinetic we-electron beam aguqulwa abe ukushisa ukushisisa ucezu lokusebenza ukuze kwakheke umthungo wokushisela. Indawo yokushisela nayo ingaphathwa ukushisa ukuze i-weld ingabonakali. Amapayipi ashiselwe ngokuvamile anokulingana okuqinile kunamapayipi angenamthungo futhi, uma ekhiqizwe ngenani elifanayo, abiza kancane. Ikakhulukazi esetshenziselwa ukushisela amapuleti ensimbi ahlukahlukene noma ukuminyana kwamandla aphezulu, izingxenye ezishiselwe zensimbi zingashiswa ngokushesha kumazinga okushisa aphezulu, zincibilike zonke izinsimbi eziphikisayo nama-alloys.

I-Summerged Arc Welding Process (SAW)

I-arc welding engaphansi kwamanzi ihlanganisa ukwenza i-arc phakathi kwe-electrode yocingo kanye nendawo yokusebenza. Umfudlana usetshenziselwa ukukhiqiza igesi evikelayo kanye ne-slag. Njengoba i-arc ihamba eduze komthungo, ukugeleza ngokweqile kukhishwa ngefaneli. Ngenxa yokuthi i-arc imbozwe ngokuphelele isendlalelo se-flux, ngokuvamile ayibonakali ngesikhathi sokushisela, futhi ukulahlekelwa ukushisa nakho kuphansi kakhulu. Kunezinhlobo ezimbili zezinqubo zokushisela ze-arc ezingaphansi kwamanzi: inqubo yokushisela i-arc engaphansi kwamanzi eqondile kanye nenqubo yokushisela ye-arc engaphansi kwe-spiral.

Ku-welding ye-arc engaphansi kwamanzi emide ubude, imiphetho yobude yamapuleti ensimbi iqala ukugoqwa ngokugaya ukuze kwakheke umumo ongu-U. Imiphetho yamapuleti amise okwe-U abe eseshiselwa. Amapayipi akhiqizwa yile nqubo angaphansi kokunwetshwa komsebenzi ukuze kuncishiswe izingcindezi zangaphakathi futhi athole ukubekezelelana okuphelele kwe-dimensional.

Ku-spiral submerged arc welding, ama-weld seams afana ne-helix ezungeze ipayipi. Kuzo zombili izindlela zokushisela ze-longitudinal kanye ne-spiral kusetshenziswa ubuchwepheshe obufanayo, umehluko kuphela ukuma oku-spiral kwama-seams ekushiseleleni okuvunguzayo. Inqubo yokukhiqiza iwukugoqa umugqa wensimbi ukuze isiqondiso esiginqikayo sakhe i-engeli ene-radial direction yeshubhu, umumo, kanye ne-weld ukuze umugqa wokushisela ulale ngokuzungeza. Ukungalungi okuyinhloko kwale nqubo ubukhulu bomzimba obumpofu bepayipi kanye nobude obuhlangene obuphakeme obungabangela kalula ukwakheka kweziphambeko noma imifantu.