Ulayini kaphethiloli we-PIPE API wepulasitiki ohlanganiswe nomlilo awunamthungo kancane
Ipayipi lepulasitiki eliboshwe ngomlilo, Ngeshubhu lensimbi eliqondile noma elingenamthungo njengepayipi lesisekelo, udonga lwangaphandle lumbozwe nge-thermosetting powder coating ene-adhesion ephezulu, ukumelana nomthelela, ukumelana nokugqwala kanye nokumelana nesimo sezulu, kanti udonga lwangaphakathi lumbozwe nge-thermoplastic powder coating ephezulu. ukunamathela, ukumelana nokugqwala kanye nenhlanzeko yokudla.
Ukusebenzisa i-sandblasting chemical double pretreatment, preheating, ingaphakathi elinamathelayo, ukunamathela kwangaphandle, ukuphulukisa, ukwelashwa ngemuva kanye nezinye izinqubo, ezenziwe ngamanzi epulasitiki ehlanganiswe nepayipi yensimbi eyinhlanganisela, ipayipi lensimbi yensimbi yendabuko, uhlobo lokuthuthukisa ipayipi lemikhiqizo engabizi kakhulu.Imikhiqizo ngokusebenzisa isitifiketi sikazwelonke sokuhlolwa kwezinto zokwakha amakhemikhali.
Izinkinga zokugqwala kanye nokukala kwamapayipi ensimbi avamile ngesikhathi sokungcwaba kanye nokuthutha amanzi zaxazululwa ngokufaka uqweqwe lwepulasitiki emapayipini ensimbi noma amapayipi anamathani.Isenzakalo sokuvinjelwa kwamapayipi kanye nokuvinjelwa kwe-spray kuyaqedwa, futhi impilo yesevisi yepayipi iyathuthukiswa.Ukuphila kwenkonzo yepayipi yensimbi eboshwe iminyaka engaphezu kwengu-50.I-powder coating ye-plastic steel tube yengeza i-flame retardant kanye ne-epoxy resin powder eguquliwe, ukumelana nezinga lokushisa kwe-coating kuphakeme, futhi akushisi noma kuthambe ekusetshenzisweni kwesikhathi eside.Ipayipi lensimbi yepulasitiki ehlanganisiwe inakho kokubili amandla aphezulu epayipi elivamile lensimbi kanye nezakhiwo zokulwa nokugqwala kwemikhiqizo yamafutha epulasitiki.Ukusebenza okucindezelayo komkhiqizo kufinyelela ku-0-5.0mpa.
Ipayipi Lepulasitiki Elifakwe Ngomlilo, Isixhumi esibonakalayo sepayipi
Uxhumano lwentambo ye: DN15-DN100
Ukuxhumeka kwe-Groove kwe: DN65-DN400;
Ukuxhumeka kwe-Bimetal welding ye: DN100-DN800
Ukuxhumeka kwe-Flange kulungele: kufanelekile kunoma iyiphi i-caliber;
Uxhumano lwe-Welding lufanelekile: lufanele noma yikuphi ububanzi;
Ipayipi Lepulasitiki Elifakwe Ngomlilo, Ukusetshenziswa Kwezinga Lokushisa
0 ~ 110 degrees ukusetshenziswa kwesikhathi eside.
Ipayipi Lepulasitiki Elifakwe Ngomlilo, Ukuqina Kokunamathela
Phakathi kwama-microns angu-100 nama-microns angu-500, ngokuvamile ama-microns angu-350.
Ipayipi Lepulasitiki Elifakwe Ngomlilo, Izici Zomkhiqizo
1. Impilo engenabo ubuthi, akukho ukukala, akukho ukuzalanisa amagciwane, iqinisekisa ikhwalithi yoketshezi
2. Imelana nokugqwala kwamakhemikhali, inhlabathi kanye nezilwane zasolwandle, ukuhlubuka kwe-cathodic
3. Inqubo yokufaka ivuthiwe, ilula futhi iyashesha, futhi ukuxhumana nepayipi elivamile lama-galvanized kuyafana
4. Ukumelana nesimo sezulu esihle, kufanelekile endaweni enokhahlo njengogwadule, usawoti kanye ne-alkali
5. Udonga lwamapayipi abushelelezi, thuthukisa ukusebenza kahle kokudlulisa, impilo ende yenkonzo
Ipayipi Lepulasitiki Elifakwe Ngomlilo, Indlela Yokuthola
Ukuhlola okubonakalayo
Hlola ngokubukeka ikhwalithi yokubukeka kwepayipi lensimbi eboshwe, futhi imiphumela yokuhlolwa izohambisana nezinhlinzeko ze-5.1.
Isilinganiso sobukhulu
Izingxenye ezimbili eziphambanayo zobude obuhlukene zithathwa emikhawulweni yomibili yepayipi yensimbi eboshwe.Esigabeni ngasinye esiphambanayo, ukujiya kokumboza kunoma yimaphi amaphuzu amane aphambana ngokuqondile nesiyingi kukalwa ngegeji yokuqina kazibuthe.Imiphumela yokuhlolwa izohambisana nezinhlinzeko zika-5.4.
Ukuhlolwa kwe-Pinhole
Ubude besampula yesigaba samapayipi bungaba ngu-1000 mm.Ukumbozwa kweshubhu lensimbi kuhlolwa umtshina wokuvuza kwenhlansi ngaphansi kwe-voltage yokuhlola eshiwo.Ugqinsi lwe-coating lungaphansi kuka-0.4mm, i-voltage yokuhlola ingu-1500 V, ukushuba kokumboza kungaphezu kuka-0.4mm, futhi i-voltage yokuhlola ingu-2000 V. Hlola ukuthi i-spark kagesi iyakhiqizwa futhi umphumela wokuhlola kufanele uhambisane no-5.5.
Ukuhlolwa kokunamathela
Ukuhlolwa kokunamathela kuzokwenziwa ngokuya nge-7.4.2 ye-CJ/T 120-2008, futhi imiphumela yokuhlolwa izohambisana no-5.6.
Ukuhlolwa kokugoba
Goba ukuhlolwa for camera steel pipe DN≤50mm.Ubude besampula yesigaba samapayipi (1200±100) mm.
Ezingeni lokushisa elingu-(20±5) ℃, izikhathi ezingu-8 zobubanzi obujwayelekile bepayipi lensimbi njenge-radius yokugoba, i-engeli egobayo engu-30O, ukugoba i-bender yepayipi noma iyafa.Lapho ukuhlolwa kokugoba, akukho ukugcwalisa ku-tube, futhi i-weld itholakala ohlangothini lwendawo egobayo eyinhloko.
Ngemva kokuhlolwa, sika isifanekiso phakathi kwe-arc egobile ukuze uhlole ukunamathela kwangaphakathi, futhi imiphumela yokuhlolwa kufanele ihambisane nezinhlinzeko ze-5.7.
Ukuhlolwa kokucaba
DN> Ishubhu yensimbi enamamilimitha angu-50 izocindezelwa.Ubude besampula yesigaba samapayipi (50±10) mm.
Ezingeni lokushisa elingu-(20±5) ℃, isifanekiso sasibekwe phakathi kwamapuleti amabili futhi sicindezelwe kancane kancane emshinini wokuhlola ukucindezela kuze kube yilapho ibanga phakathi kwamapuleti amabili libe izingxenye ezine kwezinhlanu zobubanzi obungaphandle besampula.I-seam ehlanganisiwe yepayipi yensimbi eboshwe yayincike ekuqondeni kokufakwa komthwalo.Ngemuva kokuhlolwa, ukunameka kwangaphakathi kuzobhekwa futhi imiphumela yokuhlolwa izohambisana no-5.8.
Ukuhlolwa komthelela
Isampula elingaba ngu-100 mm ubude lasikwa kunoma iyiphi indawo yepayipi lensimbi eliboshwe, futhi ukuhlolwa komthelela kwenziwa ngokuvumelana nezinhlinzeko eziseThebulani 2 ezingeni lokushisa elingu-(20±5) ℃ ukuze kubonwe umonakalo wento engaphakathi. .Ngesikhathi sokuhlolwa, i-weld izoba ngakolunye uhlangothi lwendawo yomthelela, futhi umphumela wokuhlola uzohambisana nezinhlinzeko ze-5.9.
Ithebula 2 Izimo zokuhlola umthelela
Ububanzi begama DN
Mm isisindo sesando, kg ukuphakama okuwayo, mm
15-251.0300
32 ~ 502.1500
80 ~ 3006.31000
Izisetshenziswa zokuhlola umthelela
Vacuum test
Ubude besampula yesigaba samapayipi (500±50) mm.Sebenzisa izinyathelo ezifanele zokuvimbela ukungena nokuphuma kwepayipi, futhi kancane kancane ukwandisa ukucindezela okungalungile kusuka ku-inlet kuya ku-660 mm hg, gcina i-1 min.Ngemuva kokuhlolwa, hlola ukunamathela kwangaphakathi, futhi imiphumela yokuhlolwa kufanele ihambisane nezinhlinzeko ze-5.10.
Ukuhlolwa kwezinga lokushisa eliphezulu
Ubude besampula yesigaba samapayipi babungu-(100±10) mm.Isifanekiso safakwa ku-incubator futhi sishisiswe ku-(300±5) ℃ ihora elingu-1.Khona-ke yayikhishwa futhi ipholiswe ngokwemvelo ekushiseni okujwayelekile.Ngemuva kokuhlolwa, khipha isampula bese uhlola ukunamathela kwangaphakathi (ukubukeka okumnyama nokumnyama kuvunyelwe), futhi imiphumela yokuhlolwa kufanele ihambisane ne-5.11.
Ukuhlolwa kwezinga lokushisa eliphansi
Isifanekiso sesigaba samapayipi sasingu-(100±10) mm ngosayizi nangobude.Isifanekiso safakwa egunjini le-cryogenic, sipholile ku-(-30±2) ℃ futhi sigcinwe ezingeni lokushisa elingashintshi ihora elingu-1.Yabe isikhishwa futhi ibekwe ezingeni lokushisa (20±5) ℃ for (4-7) h.Ekupheleni kwesikhathi sokuhlolwa, isifanekiso sizokhishwa ukuze sihlole ukunamathela kwangaphakathi, futhi ukuhlolwa kokunamathela kuzokwenziwa ngokuvumelana nezinhlinzeko ze-6.4, futhi imiphumela yokuhlolwa izohambisana nezinhlinzeko ze-5.12.
Ukuhlolwa komjikelezo wengcindezi
Ubude besampula yesigaba samapayipi babungu-(500±50) mm.Kwasetshenziswa izinyathelo ezifanele ukuvimba indawo yokungena nokuphuma kwepayipi, futhi ipayipi lalixhunywe nohlelo lokuphakelwa kwamanzi.Amanzi agcwaliswa ukuze kukhishwe umoya, kwase kwenziwa ukuhlola okungu-3000 okushintshanayo kwe-hydrostatic kusuka ku-(0.4±0.1) MPa kuya ku-MPa, futhi isikhathi sokuhlolwa ngakunye sasingekho ngaphezu kwe-2 s.Ngemuva kokuhlolwa, ukunamathela kwangaphakathi kuzobhekwa futhi ukuhlolwa kokunamathela kuzokwenziwa ngokuvumelana nezinhlinzeko ze-6.4, futhi imiphumela yokuhlolwa izohambisana nezinhlinzeko ze-5.13.
Ukuhlolwa komjikelezo wezinga lokushisa
Ubude besampula yesigaba samapayipi babungu-(500±50) mm.Ama-specimens abekwe amahora angama-24 ezingeni lokushisa ngalinye ngendlela elandelayo:
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃.
Ngemva kokuhlolwa, isifanekiso safakwa endaweni enezinga lokushisa elingu-(20±5) ℃ amahora angu-24.I-coating yangaphakathi ihlolwe futhi ukuhlolwa kokunamathela kwenziwa ngokuvumelana nezinhlinzeko ze-6.4.Imiphumela yokuhlolwa kufanele ihambisane nezinhlinzeko zika-5.14.
Ukuhlolwa kokuguga kwamanzi afudumele
Ubukhulu nobude besampula yesigaba samapayipi cishe ku-100 mm.Izingxenye eziveziwe kuzo zombili iziphetho zesigaba sepayipi kufanele ziphathwe nge-anticorrosion.Ingxenye yamapayipi kufanele icwiliswe emanzini acwengekile ku-(70±2) ℃ izinsuku ezingama-30.
Ukucaciswa
| Ipayipi lepulasitiki eliboshwe ngomlilo | |||||
| I-OD (mm) | I-WT (mm) | I-OD (mm) | I-WT (mm) | I-OD (mm) | I-WT (mm) |
| 219 | 4-8 | 558.8 | 4-12 | 914.4 | 8-16 |
| 273 | 4-8 | 609.6 | 4-12 | 965.2 | 8-16 |
| 325 | 4-8 | 630 | 4-12 | 1020 | 8-16 |
| 377 | 4-8 | 711.2 | 4-13 | 1220 | 8-16 |
| 406 | 4-12 | 720 | 8-13 | 1420 | 8-20 |
| 426 | 4-12 | 762 | 8-14 | 1620 | 8-20 |
| 478 | 4-12 | 812.8 | 8-14 | 1820 | 8-20 |
| 508 | 4-12 | 863 | 8-14 | 2020 | 8-20 |
Isibonisi somkhiqizo
