Ipayipi lensimbi eliyinhlanganisela lakhiwe ngezinto ezimbili (noma ngaphezulu) ezihlanganiswe zibe yinto eyodwa ngokusebenzisa izindlela ezithile zobuchwepheshe ukuze ibe nezici eziphelele Ipayipi lensimbi elisha locansi.Kusukela ngawo-1960, iJapan, i-United States, iJalimane, i-United Kingdom kanye namanye amazwe anamathisele ukubaluleka okukhulu ekuthuthukisweni kwepayipi lensimbi eliyinhlanganisela, imikhiqizo eyinhlanganisela yamapayipi ensimbi kumandla, ukwakhiwa kwemikhumbi, amakhemikhali, uphethiloli kanye nemishini neminye imikhakha. esetshenzisiwe.
Ipayipi lensimbi elihlanganisiwe lakhiwe ngezinto ezimbili (noma ngaphezulu) ezihlanganiswe zibe yinye ngokusebenzisa izindlela ezithile zobuchwepheshe ukuze ibe nezici eziphelele.
Kusukela ngeminyaka yawo-1960, iJapan, i-United States, iJalimane, i-United Kingdom namanye amazwe asebeke ukubaluleka okukhulu ekuthuthukisweni kwensimbi eyinhlanganisela.Ipayipi elinomugqa we-PTFE, imikhiqizo yamapayipi ensimbi ehlanganisiwe kumandla, ukwakha umkhumbi, amakhemikhali, i-petroleum nemishini kanye neminye imikhakha isetshenziswe kabanzi.Ubuchwepheshe bokucubungula amashubhu ensimbi ehlanganisiwe ikakhulukazi buhlanganisa ukugoqa, ukuphonsa, ukukhushulwa, ukubhula, ukushisela nokunye.
- 1.Ububanzi besicelo sepayipi yensimbi eyinhlanganisela
Imodi yokuhlanganiswa yezinhlobo ezimbili zezinto zongqimba olulodwa zepayipi elihlanganisiwe lensimbi incike ngokuphelele ezidingweni zohlelo lokusebenza nezici zemvelo.Ipayipi yensimbi eyisisekelo inamandla aphezulu kanye nokuqina, intengo ephansi kanye nokusebenza okuhle kwenqubo.Ipayipi lensimbi elimboziwe lizoba nobulukhuni obuphezulu futhi libe nekhono lokumelana nokugqwala kwendawo yemvelo.Lolu ungqimba lungaba ongqimbeni lwangaphakathi lwepayipi lensimbi eliyinhlanganisela (ipayipi eliyinhlanganisela yangaphakathi) noma ungqimba lwangaphandle (ipayipi eliyinhlanganisela yangaphandle).Ngokwemvelo yokusetshenziswa kungahlukaniswa ngamapayipi egesi awuketshezi asetshenziswa ngamakhemikhali, ipayipi likawoyela negesi kanye nowoyela. ipayipi lomthombo, ubhayela, isishisi sikadoti esinamashubhu amaningi, ipayipi lokushintshanisa ukushisa, elikwazi ukumelana nokugqwala, isakhiwo esimelana nokugqwala esinamashubhu amaningi kanye nepayipi lokuhlobisa lezakhiwo, njll., ngokuthuthukiswa okuqhubekayo kokusetshenziswa kobuchwepheshe bepayipi eliyinhlanganisela, ububanzi bokusetshenziswa kwenhlanganisela ipayipi lizonwetshelwa ezindaweni ezibanzi zokufaka isicelo.
- 2. Indlela yokukhiqiza yeipayipi lensimbi eliyinhlanganisela
Amapayipi ensimbi ahlanganisiwe angahlukaniswa abe yizinhlobo ezimbili, i-bimetallic kanye ne-double-layer, ngokusho kwesimo esihlanganisiwe sokuhlangana kokuxhumana kwezinhlobo ezimbili zamapayipi ensimbi.Ipayipi lensimbi eliyinhlanganisela elinokuxhumana okuthintana nalo kwesendlalelo sangaphakathi nesangaphandle esixhunywe kwidigri ye-metallurgical bonding ibizwa ngokuthi ipayipi le-bimetallic, kuyilapho ukuxhumana okuthintana nongqimba lwangaphakathi nangaphandle kufinyelela kuphela ekuxhumekeni komshini, kanye nepayipi lensimbi eliyinhlanganisela elinesendlalelo sengxenye yobude nesendlalelo esihlukaniswe ngokukhululekile. ibizwa nge-double layer pipe.Kunezindlela eziningi ezihlukene zenqubo yokukhiqiza amapayipi ensimbi ayinhlanganisela, ngayinye enezici zayo kanye nobubanzi besicelo.
- 2.1 Inqubo yokusebenza eshisayo
Kule ndlela, i-carbon steel billet evamile isetshenziswa njengensimbi eyisisekelo yangaphandle, imbobo ephakathi iyabholwa, futhi insimbi engagqwali noma i-nickel alloy rod isetshenziswa njengongqimba lwangaphakathi.Isiqinisekiso sangaphandle sezinto ezibonakalayo zepayipi eliyinhlanganisela, izidingo zokugqwala kwepayipi, lapho ibha kanye nendawo yebhilethi ngemva kokuba imbobo yangaphakathi ihlanzekile, izovala imbobo yepayipi eshumekiwe, i-welding ivale iziphetho ze-tube billet, izinga lokusebenzisa. ikhoyili ye-low frequency induction ukulawula ukushisa, ngemva kokushiswa ukusetha izinga lokushisa, ku-punch engu-1 600 t eshisayo emshinini wokubhoboza we-hydraulic mpo, i-billet yepayipi kwimodi yokubhoboza eyindilinga kanye nokubhobozwa kwendilinga ye-axial ecindezelwe nge-axial, ngemva kwe-thermal perforated tube billet, ibha. kanye nokokusebenza okuyisisekelo kuya kunhlanganisela ye-metallurgical.Le nqubo isetshenziswa i-Tubacex, inkampani yaseSpain extruded steel pipe, ukukhiqiza amapayipi ensimbi ayinhlanganisela anobubanzi bangaphandle be-60 · 3 no-219 · Imm.Ugqinsi lwepayipi elivikela ukugqwala ngokuvamile liyi-10% ukuya ku-0% logqinsi oluphelele lwepayipi elihlanganisiwe eliyinhlanganisela, ngokuvamile phakathi kuka-2 cm no-1 cm okungenani.
- 2.2 Indlela yokushisela ipuleti lensimbi eyinhlanganisela
Le ndlela ingasetshenziselwa ukwakha amapayipi ensimbi ayinhlanganisela kawoyela negesi amapayipi anobubanzi obukhulu kuno-300mm. Ipuleti lensimbi eliyinhlanganisela lagoqwa laba yi-tube billet ngenqubo ye-UO, lase lishiselwa emthungoni we-longitudinal.Ukugeleza kwenqubo yepayipi yensimbi eyinhlanganisela ekhiqizwa yile ndlela imi kanje: i-longitudinal seam welding - ukwanda kwepayipi - ukwelashwa kokushisa kweshidi lensimbi i-jo ukwakha i-billet.
- 2.3 Inqubo ebandayo yokusabalalisa i-anealing
Amashubhu amashubhu ezinto ezihlukene enziwa abe amashubhu angenamthungo abandayo noma adonswe ngokubanda ngokulandelana.Ibhande elincane elincibilikayo eliphakathi nendawo elincibilikayo liboshwe ohlangothini olungaphandle lwengqimba yangaphakathi yamashubhu.Ngemuva kokudweba okubandayo, ukukhishwa kwe-annealing yokushisa okuphezulu kuyenziwa.Isici sokufakela ipayipi elihlanganisiwe lensimbi ekhiqizwa yile nqubo yukuthi umngcele ohlangene ubonakala ngokucacile futhi ngisho.Ngenxa yokwengezwa kwesendlalelo sensimbi esincibilika esiphansi phakathi kwezixhumanisi ezimbili ezibophayo, amandla ayo okubopha aphakeme kakhulu, ngokuvamile amakhulu kuno-300MPao.Indawo encibilikayo yensimbi yensimbi ngokuvamile i-Ni - P alloy, futhi izinga lokushisa layo lehla ngokunyuka kokuqukethwe kwe-P. Amanye ama-gaskets B (1, 4Wt%), Si (kufika ku-9Wt %), cr (kufika ku-30Wt%) insimbi - noma ama-alloys asekelwe ku-ni.Iphuzu lokuncibilika le-gasket material kumele libe ngaphansi kunalelo leshubhu lesisekelo sangaphandle kanye neshubhu elingaphakathi.Ishubhu yensimbi eyinhlanganisela ekhiqizwa yile nqubo ingakwazi ukumelana nokugoba, futhi ukunemba kwayo kobukhulu kanye nekhwalithi ephezulu ingahlangabezana nezidingo ezijwayelekile.
Isikhathi sokuthumela: Apr-21-2016