Amapayipi Ashiselwe I-Arc Angaphansi Kabili Okuthuthukisa Ubuqotho Besakhiwo
Yethula:
Emkhakheni wobunjiniyela bezakhiwo, ukubaluleka kokusebenzisa izinto ezisezingeni eliphezulu kanye nezindlela zokwakha akukwazi ukweqiwa.Phakathi kwezingxenye ezihlukahlukene ezisetshenziswa emisebenzini yokwakha, amapayipi anendima ebalulekile.Sizocacisa ngokubaluleka kwamapayipi ashiselwe kabili futhi sihlole izici zawo, izinzuzo nokuthi angasiza kanjani ukuthuthukisa ubuqotho besakhiwo.
Funda ngamapayipi ashiselwe kabili:
Ipayipi elishiselwe kabili, elaziwa nangokuthi ipayipi elishiselwe i-arc elicwiliswe kabili (Amapayipi e-DSAW), ikhiqizwa kusetshenziswa inqubo ye-arc welding engaphansi kwamanzi.Ubuchwepheshe buhilela ukuhlanganisa isikhathi eside amapuleti ensimbi amabili ahlukene, anikeze ukuxhumana okuqinile nokuqhubekayo.Lawa mapayipi asetshenziswa ngokuyinhloko ezindaweni ezinomfutho ophezulu, amapayipi amanzi angaphansi komhlaba kanye negesi yemvelo, ukuhlola uwoyela, kanye nezinkundla ezingasogwini lolwandle.
Impahla Mechanical
| izinga lensimbi | amandla amancane esivuno | Amandla aqinile | Ubude obuncane | Amandla omthelela amancane | ||||
| Ugqinsi olucacisiwe | Ugqinsi olucacisiwe | Ugqinsi olucacisiwe | at test lokushisa | |||||
| ＜16 | ＞16≤40 | ＜3 | ≥3≤40 | ≤40 | -20 ℃ | 0℃ | 20℃ | |
| I-S235JRH | 235 | 225 | 360-510 | 360-510 | 24 | - | - | 27 |
| I-S275J0H | 275 | 265 | 430-580 | 410-560 | 20 | - | 27 | - |
| I-S275J2H | 27 | - | - | |||||
| I-S355J0H | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
| I-S355J2H | 27 | - | - | |||||
| I-S355K2H | 40 | - | - | |||||
Thuthukisa ubuqotho besakhiwo:
Isizathu esiyinhloko sokusebenzisaipayipi elishiselwe kabiliyikhono labo lokuthuthukisa ubuqotho besakhiwo.Ngama-welds angenamthungo futhi aqinile, lawa mapayipi anikeza ukumelana nokucindezeleka okuphezulu nokuqina.I-double weld iqinisekisa ukuthi ipayipi ingakwazi ukumelana namazinga aphezulu okucindezela, okuyenza ifaneleke kakhulu ekusebenzeni okubucayi lapho ukushisela okukodwa kungase kuphazamise ukuphepha kwesakhiwo.Le nqubo yokushisela okukabili iqeda amathuba okuvuza noma ukuqhekeka, iqinisekisa ukwethembeka kwesikhathi eside kohlelo lwakho lwamapayipi.
Isilinganiso samandla esisindweni esiphezulu:
Ipayipi elishiselwe kabili linikeza isilinganiso esihle kakhulu samandla esisindweni.Ngenxa yenqubo yokushisela, la mapayipi anciphise ukushuba kwezindonga futhi alula ngenkathi egcina ukuqina kwesakhiwo.Le nzuzo yesilinganiso samandla nesisindo inciphisa isamba somthwalo esakhiweni esisekelayo, isenze sibe yisixazululo esingabizi kakhulu samaphrojekthi amakhulu afana namabhuloho, imibhoshongo, nezakhiwo eziphakeme kakhulu.
Ukumelana nokugqwala:
Enye inzuzo ebalulekile yepayipi elishiselwe kabili ukumelana nokugqwala.Isigxivizo esiqinile esishiselwe senza umgoqo oqinile ngokumelene nezinto zangaphandle, okuhlanganisa umswakama, amakhemikhali kanye nezakhiwo zomhlabathi.Lokhu kuvimbela indawo engaphakathi yepayipi ukuthi ingathintani ngqo nama-ejenti agqwalayo, okuqinisekisa impilo ende yesevisi uma kuqhathaniswa namapayipi avamile.Izakhiwo ezimelana nokugqwala zala mapayipi zinenzuzo ikakhulukazi embonini kawoyela negesi, lapho amapayipi evame ukubhekana nezimo ezinzima.
Ukwakheka Kwamakhemikhali
| Ibanga lensimbi | Uhlobo lwe-de-oxidation a | % ngesisindo, esiphezulu | ||||||
| Igama lensimbi | Inombolo yensimbi | C | C | Si | Mn | P | S | Nb |
| I-S235JRH | 1.0039 | FF | 0,17 | - | 1,40 | 0,040 | 0,040 | 0.009 |
| I-S275J0H | 1.0149 | FF | 0,20 | - | 1,50 | 0,035 | 0,035 | 0,009 |
| I-S275J2H | 1.0138 | FF | 0,20 | - | 1,50 | 0,030 | 0,030 | - |
| I-S355J0H | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
| I-S355J2H | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
| I-S355K2H | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
| a.Indlela ye-deoxidation ikhethwe kanje: FF: Insimbi ebulawe ngokuphelele equkethe izakhi zokubopha i-nitrogen ngamanani anele ukuhlanganisa i-nitrogen etholakalayo (isb. min. 0,020 % isiyonke i-Al noma i-0,015 % e-soluble Al). b.Inani eliphakeme kakhulu le-nitrogen alisebenzi uma ukwakheka kwamakhemikhali kubonisa inani elincane eliphelele lokuqukethwe kwe-Al elingu-0,020 % elinesilinganiso esincane se-Al/N esingu-2:1, noma uma kukhona ezinye izakhi ezanele zokubopha i-N.Izinto ezibophezela i-N zizorekhodwa kuMqulu Wokuhlola. | ||||||||
Izici zethrafikhi ezisebenzayo:
Indawo engaphakathi ebushelelezi, engaphazanyiswa yepayipi elishiselwe kabili ivumela izici zokugeleza eziphumelelayo.Ngokungafani nezinye izinhlobo zamapayipi anezingqimba zangaphakathi noma izithiyo, lawa mapayipi aqinisekisa ukugeleza okuqhubekayo ngisho nokugeleza koketshezi noma igesi, ngaleyo ndlela kuncishiswe ukulahlekelwa ukungqubuzana.Izici zokugeleza ezisebenzayo zamapayipi ashiselwe kabili zisiza ukuthuthukisa ukusebenza kwezinqubo ezihlukahlukene zezimboni, okuhlanganisa izitshalo ze-petrochemical, izindawo zokuhluza kanye nezindawo zokuhlanza amanzi.
Ekuphetheni:
Sengiphetha, ipayipi elishiselwe kabili liyingxenye ebalulekile ethuthukisa kakhulu ubuqotho besakhiwo semiklamo ehlukahlukene yokwakha.Izakhiwo zabo eziyingqayizivele, ezihlanganisa ama-welds angenamthungo, isilinganiso esiphezulu samandla nesisindo, ukumelana nokugqwala nokugeleza okuphumelelayo, kubenza babe ukukhetha kokuqala kwezinhlelo zokusebenza ezidinga ukwethembeka, ukuqina kanye nokusebenza kahle kwezindleko.Ngokusebenzisa ipayipi elishiselwe kabili, onjiniyela nosonkontileka bangaqinisekisa ukusebenza okuhlala isikhathi eside nokuphephile kwengqalasizinda ebalulekile, okuyenza ibe yimpahla ebalulekile emikhakheni yokwakha nezobunjiniyela.
Kafushane, i-S235 J0 spiral steel pipe inikeza ikhwalithi engenakuqhathaniswa nokuqina kwakhoipayipi elikhulu elishiselwe ububanzieizidingo.Ngezinqubo zabo zokukhiqiza ezithuthukile, ikhwalithi ephezulu yokushisela kanye nokuhlolwa kwekhwalithi okuphelele, imikhiqizo yethu iqinisekisiwe ukuthi izodlula okulindele.Trust Cangzhou Spiral Steel Pipe Group Co., Ltd.'s ubuchwepheshe kanye nesipiliyoni ukuhlangabezana nazo zonke izidingo zakho zepayipi lensimbi.
