Ipayipi lensimbi elishiselwe ipayipi lensimbi elithungwe.Ukukhiqizwa kwawo ukugoba ishubhu lingenalutho (ipuleti lensimbi nomugqa wensimbi) libe ishubhu elinomumo odingekayo wesigaba esiphambanayo nosayizi ngezindlela ezihlukahlukene zokwakha, bese usebenzisa izindlela zokushisela ukushisela ndawonye umthungo wokushisela.Inqubo yokuthola amapayipi ensimbi.
Uma kuqhathaniswa nepayipi lensimbi elingenamthungo kanye nepayipi elishiselwe, linezici zokunemba okuphezulu komkhiqizo, ikakhulukazi ukunemba kokuqina kodonga, imishini eyinhloko elula, indawo encane, ukusebenza okuqhubekayo ekukhiqizeni, ukukhiqiza okuguquguqukayo, kanye nobubanzi bomkhiqizo weyunithi.
Okokuqala, Inqubo yokukhiqiza ipayipi lensimbi elivunguzayo icishe ibe kanje:
1. Izinto zokusetshenziswa zepayipi lensimbi elivunguzayo yikhoyili ye-strip steel, i-welding wire kanye ne-flux.
2. Ngaphambi kokwakhiwa, insimbi ye-strip iyalinganiswa, inqunywe, ihlelwe, ihlanzwe phezulu, ihanjiswe futhi igotshwe ngaphambili.
3. Idivayisi yokulawula igebe le-weld isetshenziselwa ukuqinisekisa ukuthi igebe le-weld lihlangabezana nezidingo zokushisela, futhi ububanzi bepayipi, ukungahambi kahle kanye negebe lokushisela kulawulwa ngokuqinile.
4. Ngemva kokusika amapayipi ensimbi eyodwa, amapayipi ensimbi amathathu okuqala eqeqebana ngalinye kufanele ahlolwe kuqala ukuze ahlole izakhiwo zemishini, ukwakheka kwamakhemikhali, isimo sokuhlangana kwama-welds, izinga eliphezulu lamapayipi ensimbi kanye nokuhlolwa okungabhubhisi. ukuqinisekisa ukuthi inqubo yokwenza amapayipi ifanelekile.Ngemuva kwalokho, ingafakwa ngokusemthethweni ekukhiqizeni.
Okwesibili, umthungo oqondile wepayipi elishiselwe i-arc:
Umthungo oqondile wepayipi oshiselwe i-arc we-arc (LSAW) ngokuvamile usebenzisa amapuleti ensimbi njengempahla yokusetshenziswa, futhi wenza izinqubo ezahlukene zokwakha ukuze akhe amapayipi ashiselwe ngokushisela i-arc engaphansi kwezinhlangothi ezimbili kanye nokunwetshwa kobubanzi obungemuva kokushisela.
Imishini eyinhloko ihlanganisa umshini wokugaya onqenqemeni, umshini wokugoba ngaphambili, umshini wokwakha, umshini wokushisela ngaphambili, umshini wokwandisa ububanzi, njll. Ngesikhathi esifanayo, izindlela zokwakha amapayipi e-LSAW zihlanganisa i-UO (UOE), i-RB (RBE), i-JCO (JCOE), njll. Ipuleti lensimbi licindezelwa kuqala libe wumumo ongu-U kudayi lokubunjwa, bese licindezelwa libe wumumo we-O, bese kwenziwa ukushisela kwe-arc okungaphansi nangaphandle.Ngemva kokushisela, ububanzi (Ukunwebeka) ekugcineni noma bonke ubude buvame ukubizwa ngokuthi ipayipi elishiselwe i-UOE, futhi elingenalo ukunwetshwa kobubanzi libizwa ngokuthi ipayipi elishiselwe i-UOE.Okwepayipi elishiselwe i-UO.Ipuleti lensimbi ligoqwa libe yisimo (Ukugoba kwe-Roll), bese kuthi ukushiselwa kwe-arc okungaphansi nangaphandle kwe-arc kwenziwe.Ngemuva kokushisela, ububanzi bunwetshwa kupayipi elishiselwe i-RBE noma ipayipi elihlanganisiwe le-RBE ngaphandle kokunwetshwa kobubanzi.Ipuleti lensimbi lakhiwa ngokulandelana kohlobo lwe-JCO, futhi ngemva kokushisela, ububanzi bunwetshwa ibe yipayipi elishiselwe i-JCOE noma ipayipi elihlanganisiwe le-JCO ngaphandle kokunwetshwa kobubanzi.
Inqubo yokwenza ipayipi le-UOE LSAW:
Izinqubo ezintathu eziyinhloko zokwakha inqubo ye-UOE LSAW yokwakha ipayipi lensimbi zihlanganisa: ipuleti lensimbi ngaphambi kokugoba, ukwenza u-U kanye nokwakhiwa kwe-O.Inqubo ngayinye isebenzisa umshini wokunyathelisa okhethekile wokunyathelisa ukuze iqedele izinqubo ezintathu zokugoba ngaphambili unqenqema lwensimbi yensimbi, ukwenza u-U kanye no-O ukwakha ngokulandelana, futhi kukhubaze ipuleti lensimbi libe ishubhu eliyindilinga.
Inqubo yokwenza ipayipi ye-JCOE LSAW:
Ukwakha: Ngemva kokunyathela okuningi ngesinyathelo ngesinyathelo emshinini wokwenza i-JC0, ingxenye yokuqala yensimbi yensimbi icindezelwa ibe yisimo esithi “J”, bese enye ingxenye yepuleti yensimbi icindezelwa ibe yisimo esithi “J” ukuze sakhe. umumo ka-C”, futhi ekugcineni wacindezelwa kusukela maphakathi ukuze Yakha isitokwe seshubhu somumo esithi “0″.
Ukuqhathaniswa kwezindlela zokubumba ze-JCO ne-UO:
Ukwakhiwa kwe-JCO kuwukwakha ingcindezi eqhubekayo, eshintsha inqubo yokwakheka kwepayipi lensimbi lisuka ezinyathelweni ezimbili ze-UO kwakheka kwezinyathelo eziningi.Phakathi nenqubo yokwenza, ukuguqulwa kwepuleti yensimbi kufana, ukucindezeleka okusalayo kuncane, futhi ubuso abukhiqizi imihuzuko.
Amapayipi ensimbi acutshunguliwe anokuguquguquka okukhulu ngobukhulu nobubanzi bokucaciswa kobubanzi nobukhulu bodonga, futhi angakhiqiza kokubili imikhiqizo emikhulu nemincane;ingakhiqiza amapayipi ensimbi anobubanzi obukhulu anodonga oluqinile, futhi ingakhiqiza namapayipi ensimbi anobubanzi obuncane nawugqinsi;ikakhulukazi ekukhiqizweni kwamapayipi anezindonga eziwugqinsi wezinga eliphezulu, ikakhulukazi amapayipi anezindonga eziwugqinsi nobubanzi obuphakathi, anezinzuzo ezingenakuqhathaniswa ngaphezu kwezinye izinqubo.
Ingakwazi ukuhlangabezana nezidingo ezengeziwe zabasebenzisi mayelana nokucaciswa kwepayipi lensimbi.Ukutshalwa kwezimali kuncane, kodwa ukusebenza kahle kokukhiqiza kuphansi, futhi umphumela ojwayelekile wonyaka ungamathani ayi-100,000 kuya ku-250,000.
Ukubumba kwe-UO kwakhiwe ngu-U no-O izikhathi ezimbili zokubumba ingcindezi.Ibonakala ngomthamo omkhulu nokukhishwa okuphezulu.Ngokuvamile, okukhiphayo ngonyaka kungafinyelela kumathani angu-300,000 kuya ku-1 million, afanele ukukhiqizwa ngobuningi kokucaciswa okukodwa.
3. Umthungo oqondile wepayipi elishiselwe imvamisa ephezulu:
Ipayipi elishiselwe i-Sight seam high-frequency welded (ERW) ukushisa nokuncibilikisa unqenqema lwe-tube billet ngokusebenzisa umphumela wesikhumba kanye nomphumela oseduze we-high-frequency current ngemva kokuba ikhoyili egoqelwe eshisayo yakhiwe umshini wokwakha, kanye nokucindezela. i-welding yenziwa ngaphansi kwesenzo se-roller extrusion ukuze kuzuzwe ukukhiqizwa.
Ipayipi lensimbi elishiselwe, elaziwa nangokuthi ipayipi elishiselwe, ipayipi lensimbi elenziwe ngensimbi yensimbi noma i-strip steel ngemuva kokucwiliswa nokushiselwa.Ipayipi lensimbi elishiselwe linenqubo elula yokukhiqiza, ukusebenza kahle kokukhiqiza okuphezulu, izinhlobonhlobo eziningi kanye nokucaciswa, kanye nokutshalwa kwezimali kwemishini encane, kodwa amandla ayo ajwayelekile aphansi kunalawo epayipi lensimbi engenamthungo.
Kusukela ngeminyaka yawo-1930s, ngokuthuthuka okusheshayo kokukhiqizwa okuqhubekayo kwensimbi ye-strip ephezulu kanye nentuthuko yobuchwepheshe bokushisela nokuhlola, ikhwalithi yama-welds ibilokhu ithuthukiswa ngokuqhubekayo, futhi izinhlobo kanye nokucaciswa kwamapayipi ensimbi ashiselwe kuye kwanda usuku nosuku. .Ipayipi lensimbi yomthungo.Amapayipi ensimbi ashiselwe ahlukaniswe abe amapayipi ahlanganisiwe aqondile kanye namapayipi ashiselwe okuvunguzayo ngokuya ngesimo se-weld seam.
Ukwahlukaniswa ngendlela yokukhiqiza: ukuhlukaniswa kwenqubo - ipayipi elishiselwe i-arc, ipayipi elishiselwe ukumelana nogesi, (imvamisa ephezulu, imvamisa ephansi) ipayipi elishiselwe igesi, ipayipi elishiselwe esithandweni.Inqubo yokukhiqiza ipayipi ehlanganisiwe ye-seam ilula, ukusebenza kahle kokukhiqiza kuphezulu, izindleko ziphansi, futhi ukuthuthukiswa kuyashesha.Amandla wepayipi elishiselwe okuvunguzayo ngokuvamile liphakeme kunalelo lepayipi elishiselwe ngomthungo oqondile, futhi ipayipi elishiselwe elinobubanzi obukhudlwana lingakhiqizwa nge-billet encane, futhi amapayipi ahlanganisiwe anama-diameter ahlukene angakhiqizwa nge-billet yobubanzi obufanayo.Kodwa uma kuqhathaniswa nepayipi lomthungo eliqondile lobude obufanayo, ubude be-weld bukhuphuka ngo-30 ~ 100%, futhi isivinini sokukhiqiza siphansi.
Amazinga Omkhiqizo
Izinto ezisetshenziswa kakhulu amapayipi ashiselwe yilezi: Q235A, Q235C, Q235B, 16Mn, 20#, Q345, L245, L290, X42, X46, X60, X80, 0Cr13, 1Cr17, 00Cr19Nir19Nir01Cr01, njll.
Izikhala ezisetshenziselwa amapayipi ensimbi ashiselwe amapuleti ensimbi noma i-strip steel, ahlukaniswe ngamapayipi ashiselwe esithandweni, amapayipi kagesi welding (resistance welding) kanye namapayipi a-arc welding azenzakalelayo ngenxa yezinqubo zawo zokushisela.Ngenxa yamafomu alo ahlukene okushisela, ihlukaniswe yaba izinhlobo ezimbili: ipayipi elicijile lomthungo oqondile kanye nepayipi elihlanganisiwe elivunguzayo.Ngenxa yokuma kwayo kokuphela, ihlukaniswe ipayipi elishiselwe eliyindilinga kanye nepayipi elishiselwe okukhethekile (isikwele, isicaba, njll.).Ngenxa yezinto zabo ezihlukene kanye nokusetshenziswa, amapayipi ashiselwe ahlukaniswe izinhlobo ezilandelayo:
I-GB/T3091-2001 (ipayipi lensimbi elishiselwe umfutho ophansi wokudlulisa uketshezi).Isetshenziselwa kakhulu ukudlulisa amanzi, igesi, umoya, uwoyela kanye nokushisisa amanzi ashisayo noma isitimu kanye nolunye uketshezi olunengcindezi ephansi kanye nezinye izinjongo.Into emele yona yile: Insimbi yezinga le-Q235A.
I-GB/T14291-2006 (amapayipi ensimbi ashiselwe ezokuthutha uketshezi lwasemayini).Isetshenziselwa ikakhulukazi amapayipi ensimbi ashiselwe ngomthungo ocijile emoyeni ocindezelwe emayini, i-drainage, kanye negesi yokukhipha i-shaft.Into emele yona yinsimbi ye-Q235A ne-B grade.I-GB/T14980-1994 (amapayipi ensimbi ane-diameter amakhulu ashiselwe ngogesi wokuthutha uketshezi olunomfutho ophansi).Ikakhulukazi esetshenziselwa ukuhambisa amanzi, indle, igesi, umoya, ukushisisa isitimu nezinye izinto eziwuketshezi ezinomfutho ophansi nezinye izinjongo.Izinto zayo ezimele ziyinsimbi yezinga le-Q235A.
I-GB/T12770-2002 (amapayipi ensimbi ashiselwe ensimbi engagqwali yezakhiwo zemishini).Isetshenziswa kakhulu emishinini, ezimotweni, emabhayisikili, efenisha, ehhotela nasezitolo zokudlela kanye nezinye izingxenye zemishini nezingxenye zesakhiwo.Izinto zayo ezimele ziyi-0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, njll.
I-GB/T12771-1991 (insimbi engagqwali eshiselwe amapayipi okuthutha uketshezi).Isetshenziselwa kakhulu ukudlulisa imidiya elimazayo enengcindezi ephansi.Izinto ezimele i-0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, njll.
Ngaphezu kwalokho, amapayipi ensimbi engagqwali ashiselwe umhlobiso (GB/T 18705-2002), ashiselwe amapayipi ensimbi engagqwali umhlobiso yezakhiwo (JG/T 3030-1995), ububanzi kagesi ashiselwe amapayipi ensimbi for low-pressure uketshezi transmission (GB/ T 3091-2001), kanye namapayipi ensimbi ashiselwe okushintshanisa ukushisa (YB4103-2000).
Ubuchwepheshe bokukhiqiza kanye nenqubo
Inqubo yokukhiqiza ipayipi ehlanganisiwe ye-seam ilula, ukusebenza kahle kokukhiqiza kuphezulu, izindleko ziphansi, futhi ukuthuthukiswa kuyashesha.Amandla wepayipi elishiselwe okuvunguzayo ngokuvamile liphakeme kunalelo lepayipi elishiselwe ngomthungo oqondile, futhi ipayipi elishiselwe elinobubanzi obukhudlwana lingakhiqizwa nge-billet encane, futhi amapayipi ahlanganisiwe anama-diameter ahlukene angakhiqizwa nge-billet yobubanzi obufanayo.Kodwa uma kuqhathaniswa nepayipi lomthungo eliqondile lobude obufanayo, ubude be-weld bukhuphuka ngo-30 ~ 100%, futhi isivinini sokukhiqiza siphansi.
Amapayipi ashiselwe anobubanzi obukhulu noma amadayamitha aminyene ngokuvamile enziwa ngokuqondile ngamabhilidi ensimbi, kuyilapho amapayipi amancane ashiselwe namapayipi anezindonga ezincane ezishiselwe kuphela adinga ukushiselwa ngokuqondile ngemicu yensimbi.Khona-ke ngemva kokupholisha okulula, ukuxubha kuso.Ngakho-ke, amapayipi amaningi ashiselwe anobubanzi obuncane athatha i-seam welding eqondile, futhi iningi lamapayipi amakhulu ashiselwe asebenzisa i-spiral welding.
Isengezo: Ipayipi elishiselwe lishiselwe nge-strip steel, ngakho-ke isimo salo asikho phezulu njengepayipi elingenamthungo.
Inqubo yepayipi elishiselwe
I-Raw material decoiling-leveling-end cutting and welding-loop-forming-welding-ukususwa kobuhlalu be-welding yangaphakathi nangaphandle-pre-calibration-induction heat treatment-size and straightening-eddy ukuhlolwa kwamanje-Ukuhlola ukucindezela kwamanzi-Cutting-water-pickling-final ukuhlola (isheke eliqinile) -ukupakisha-ukuthumela.
Isikhathi sokuthumela: Jan-09-2023