Ukukhiqizwa kwamapayipi ensimbi kusukela ekuqaleni kwawo-1800. Ekuqaleni, amapayipi ayenziwa ngesandla - ngokushisa, ukugoba, ukuhlanganisa, nokuhlanganisa imiphetho ndawonye. Inqubo yokuqala yokukhiqiza amapayipi ezenzakalelayo yethulwa ngo-1812 eNgilandi. Izinqubo zokukhiqiza ziye zathuthuka njalo kusukela ngaleso sikhathi. Amanye amasu okukhiqiza amapayipi athandwayo achazwe ngezansi.
Ukushisela Imilenze
Ukusetshenziswa kokushisela izintambo ekwenzeni amapayipi kwaqalwa ekuqaleni kwawo-1920. Nakuba le ndlela ingasasetshenziswa, amanye amapayipi akhiqizwa kusetshenziswa inqubo yokushisela izintambo asasetshenziswa nanamuhla.
Enqubweni yokushisela ithangi, insimbi yayishiswa esithandweni bese igoqwa ibe sesimweni sesilinda. Amaphethelo epuleti lensimbi abe "efakwe isikhafu". Ukushisela kuhilela ukumboza umphetho wangaphakathi wepuleti lensimbi, kanye nomphetho onciphile wohlangothi oluphambene lwepuleti. Umthungo wabe usushiswa kusetshenziswa ibhola lokushisela, bese ipayipi elifudumele lidluliswa phakathi kwama-roller aphoqelela umthungo ukuthi uhlangane ukuze kwakheke isibopho.
Ama-weld akhiqizwa yi-lap welding awathembekile njengalawo adalwe ngezindlela zesimanje. I-American Society of Mechanical Engineers (ASME) isungule i-equation yokubala ingcindezi yokusebenza evumelekile yepayipi, ngokusekelwe ohlotsheni lwenqubo yokukhiqiza. Lesi sibalo sihlanganisa i-variable eyaziwa ngokuthi "i-joint factor", esekelwe ohlotsheni lwe-weld olusetshenziswa ukudala umthungo wepayipi. Amapayipi angenamthungo ane-joint factor engu-1.0 Ipayipi elihlanganisiwe le-Lap line-joint factor engu-0.6.
Ipayipi Elihlanganisiwe Lokumelana Nogesi
Ipayipi elihlanganisiwe lokumelana nogesi (i-ERW) lenziwa ngokwenza ishidi lensimbi elibandayo libe yisimo esiyindilinga. Ugesi ube usudluliswa phakathi kwemiphetho emibili yensimbi ukuze kushiswe insimbi kuze kufike lapho imiphetho iphoqeleka khona ndawonye ukuze kwakheke isibopho ngaphandle kokusebenzisa izinto zokugcwalisa ukushiswa. Ekuqaleni le nqubo yokukhiqiza yayisebenzisa ugesi we-AC ojwayelekile ophansi ukuze kushiswe imiphetho. Le nqubo yemvamisa ephansi yasetshenziswa kusukela ngawo-1920 kuze kube ngu-1970. Ngo-1970, inqubo yemvamisa ephansi yathathelwa indawo yinqubo ye-ERW evame kakhulu eyakhiqiza ukushiswa kwekhwalithi ephezulu.
Ngokuhamba kwesikhathi, ukushintshwa kwepayipi le-ERW elinomthamo ophansi kwatholakala ukuthi kusengozini yokugqwala komthungo okukhethiwe, ukuqhekeka kwama-hook, kanye nokubopha okunganele kwemithungo, ngakho-ke i-ERW enomthamo ophansi ayisasetshenziswa ukukhiqiza ipayipi. Inqubo ye-frequency ephezulu isasetshenziswa ukukhiqiza ipayipi elizosetshenziswa ekwakhiweni kwepayipi elisha.
Ipayipi Elihlanganisiwe Likagesi
Ipayipi likagesi elihlanganisiwe elenziwe nge-flash lakhiqizwa kusukela ngo-1927. Ukushiswa kwe-flash kwenziwa ngokwenza ishidi lensimbi libe yisimo esiyindilinga. Amaphethelo ashiswa aze ancibilike kancane, bese ephoqwa ndawonye kuze kube yilapho insimbi encibilikisiwe iphoqeleka ukuphuma ejoyintini futhi kwakha ubuhlalu. Njengepayipi le-ERW elinomthamo ophansi, imithungo yepayipi elihlanganisiwe elenziwe nge-flash isengozini yokugqwala kanye nokuqhekeka kwezingwegwe, kodwa ngezinga elincane kunepayipi le-ERW. Lolu hlobo lwepayipi luphinde lusengozini yokwehluleka ngenxa yamabala aqinile ensimbini yepuleti. Ngenxa yokuthi iningi lepayipi elihlanganisiwe elenziwe nge-flash lakhiqizwa umenzi oyedwa, kukholakala ukuthi lawa mabala aqinile enzeka ngenxa yokucinywa kwensimbi ngengozi ngesikhathi senqubo yokukhiqiza esetshenziswa yilowo menzi othile. Ukushiswa kwe-Flash akusasetshenziswa ukukhiqiza ipayipi.
Ipayipi Elihlanganisiwe Eliphindwe Kabili Elifakwe I-Arc Welded (DSAW)
Njengezinye izinqubo zokukhiqiza amapayipi, ukukhiqizwa kwe-Double Submerged Arc Welded Pipe kuhilela ukwakha amapuleti ensimbi abe yizimo ezisilinda. Amaphethelo epuleti eligoqiwe ayakhiwa ukuze kwakheke imifantu enobunjwa obungu-V ezindaweni zangaphakathi nezangaphandle endaweni yomthungo. Umthungo wepayipi ube usuhlanganiswa nge-pass eyodwa yomthungi we-arc ezindaweni zangaphakathi nezangaphandle (ngakho-ke uhlanganiswa kabili). I-arc welding ifakwa ngaphansi kokushintshashintsha.
Inzuzo yale nqubo ukuthi ama-weld angena ngo-100% odongeni lwepayipi futhi akhiqize isibopho esiqinile kakhulu sezinto zepayipi.
Ipayipi Elingenamthungo
Ipayipi elingenamthungo liye lakhiqizwa kusukela ngawo-1800. Nakuba inqubo ishintshile, izinto ezithile ziye zahlala zinjalo. Ipayipi elingenamthungo lenziwa ngokubhoboza i-billet yensimbi eyindilinga eshisayo nge-mandrel. Insimbi egobile iyagoqwa futhi yelulwe ukuze kufezwe ubude nobubanzi obufunwayo. Inzuzo eyinhloko yepayipi elingenamthungo ukususa amaphutha ahlobene nomthungo; nokho, izindleko zokukhiqiza zikhulu.
Ipayipi elingenalutho lasekuqaleni lalisengozini yokukhubazeka okubangelwa ukungcola ensimbini. Njengoba amasu okwenza insimbi ethuthuka, la maphutha ancishiswa, kodwa awazange asuswe ngokuphelele. Nakuba kubonakala sengathi ipayipi elingenamthungo lingcono kunepayipi elenziwe nge-seam-welded, ikhono lokuthuthukisa izici ezifiselekayo epayipini lilinganiselwe. Ngenxa yalesi sizathu, ipayipi elingenamthungo okwamanje litholakala ngamamaki aphansi kanye nobukhulu bodonga kunepayipi elihlanganisiwe.
I-Jindalai Steel Group igxile ekukhiqizeni amapayipi e-ERW (Electric Resistance Welded) kanye ne-SSAW (Spiral Submerged Arc welded) obuchwepheshe obuphezulu. Inkampani yethu inomshini wokuwelda oqinile oqondile we-φ610 mm, kanye nomshini wokuwelda we-arc welded we-φ3048mm we-spiral submerged arc. Ngaphezu kwalokho, ngaphandle kwezimboni ze-ERW kanye ne-SSAW, sinezinye izimboni ezintathu ezihlobene zokukhiqiza i-LSAW kanye ne-SMLS kulo lonke elaseShayina.
Uma ukuthenga amapayipi kuseduze nawe, cela ikhotheshini. Sizokunikeza eyodwa ezokutholela imikhiqizo oyidingayo ngokushesha. Thumela umbuzo wakho futhi sizojabula ukukubonisana nawe ngobuchwepheshe.
Thina iJindalai Steel Group singabakhiqizi, abathumela kwamanye amazwe, abaphethe amasheya kanye nabaphakeli bezinhlobo ezahlukene zePipe Yensimbi. Sinamakhasimende avela eThane, eMexico, eTurkey, ePakistan, e-Oman, kwa-Israyeli, eGibhithe, e-Arab, eVietnam, eMyanmar. Thumela umbuzo wakho futhi sizojabula ukubonisana nawe ngobungcweti.
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Isikhathi sokuthunyelwe: Disemba 19-2022
