Amapayipi Ahlanganisiwe Aphindwe Kabili Angaphansi Komnsalo Ukuze Kuthuthukiswe Ubuqotho Besakhiwo

Amapayipi Ahlanganisiwe Aphindwe Kabili Angaphansi Komnsalo Othuthukisa Ubuqotho Besakhiwo Isithombe Esifakiwe

Incazelo emfushane:

Le ngxenye yale European Standard ichaza izimo zokulethwa kobuchwepheshe zezingxenye zesakhiwo ezihlanganisiwe ezibandayo, ezingenalutho zezinhlobo eziyindilinga, eziyisikwele noma eziyisikwele futhi isebenza ezingxenyeni zesakhiwo ezingenalutho ezakhiwe ezibandayo ngaphandle kokwelashwa kokushisa okulandelayo.

I-Cangzhou Spiral Steel Pipes Group Co., Ltd inikeza ingxenye engenalutho yamapayipi ensimbi ajikelezayo ukuze kwakhiwe.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Yethula:

Emkhakheni wobunjiniyela bezakhiwo, ukubaluleka kokusebenzisa izinto ezisezingeni eliphezulu kanye nezindlela zokwakha akunakugcizelelwa. Phakathi kwezingxenye ezahlukahlukene ezisetshenziswa kumaphrojekthi okwakha, amapayipi adlala indima ebalulekile. Sizokhanyisa ukubaluleka kwamapayipi ahlanganiswe kabili futhi sihlole izici zawo, izinzuzo nokuthi angasiza kanjani ekuthuthukiseni ubuqotho besakhiwo.

Funda ngamapayipi ahlanganisiwe kabili:

Ipayipi elihlanganisiwe kabili, elaziwa nangokuthi ipayipi elihlanganisiwe elihlanganisiwe kabili ngaphansi kwamanzi (Amapayipi e-DSAW), ikhiqizwa kusetshenziswa inqubo yokushisela i-arc engaphansi kwamanzi. Lobu buchwepheshe buhilela ukuhlanganisa amapuleti amabili ensimbi ahlukene isikhathi eside, okuhlinzeka ngokuxhumana okuqinile nokuqhubekayo. Lawa mapayipi asetshenziswa kakhulu ekusetshenzisweni komfutho ophezulu, amapayipi angaphansi komhlaba kanye negesi yemvelo, ukuhlola uwoyela, kanye namapulatifomu asogwini lolwandle.

Impahla Yomshini

ibanga lensimbi	amandla amancane okukhiqiza I-Mpa		Amandla okudonsa		Ukwandiswa okuncane %	Amandla amancane omthelela J
ibanga lensimbi	Ubukhulu obucacisiwe mm		Ubukhulu obucacisiwe mm		Ubukhulu obucacisiwe mm	ekushiseni kokuhlolwa kwe-
	16	＞16≤40	＜3	≥3≤40	≤40	-20℃	0℃	20℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Thuthukisa ubuqotho besakhiwo:

Isizathu esiyinhloko sokusebenzisaipayipi elihlanganisiwe kabiliyikhono lawo lokuthuthukisa ubuqotho besakhiwo. Ngama-weld angenamthungo futhi aqinile, la mapayipi anikeza ukumelana nokucindezeleka okuphezulu nokuqina. Ukushintshwa okuphindwe kabili kuqinisekisa ukuthi ipayipi lingamelana namazinga aphezulu okucindezela, okwenza libe yindawo ekahle kakhulu ekusetshenzisweni okubalulekile lapho ukushintshwa okukodwa kungafaka khona ukuphepha kwesakhiwo engcupheni. Le nqubo yokushintshwa okuphindwe kabili isusa amathuba okuvuza noma ukuqhekeka, okuqinisekisa ukuthembeka kwesikhathi eside kwesistimu yakho yamapayipi.

Isilinganiso samandla aphezulu kunesisindo:

Ipayipi elihlanganisiwe kabili linikeza isilinganiso esihle kakhulu samandla nesisindo. Ngenxa yenqubo yokushisela, la mapayipi anobukhulu obunciphile bodonga futhi alula ngenkathi egcina ukuqina kwesakhiwo. Le nzuzo yesilinganiso samandla nesisindo inciphisa umthwalo ophelele esakhiweni esisekelayo, okwenza kube yisisombululo esingabizi kakhulu samaphrojekthi amakhulu njengamabhuloho, imibhoshongo, nezakhiwo eziphakeme.

Ukumelana nokugqwala:

Enye inzuzo ebalulekile yepayipi elihlanganisiwe kabili ukumelana nokugqwala. I-tight sheld seal idala isithiyo esinamandla ezicini zangaphandle, okuhlanganisa umswakama, amakhemikhali kanye nezakhiwo zomhlabathi. Lokhu kuvimbela ubuso bangaphakathi bepayipi ukuthi buhlangane ngqo nezinto ezigqwalisayo, okuqinisekisa impilo yesevisi ende uma kuqhathaniswa namapayipi avamile. Izakhiwo ezimelana nokugqwala zala mapayipi zizuzisa kakhulu embonini kawoyela negesi, lapho amapayipi evame ukubhekana nezimo ezinzima.

Ukwakheka Kwamakhemikhali

Ibanga lensimbi		Uhlobo lokususa i-oxidation a	% ngobuningi, ubuningi
Igama lensimbi	Inombolo yensimbi	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. Indlela yokususa i-oxidation ichazwa kanje: FF: Insimbi ebulewe ngokuphelele equkethe izinto zokubopha i-nitrogen ngamanani anele ukubopha i-nitrogen etholakalayo (isb. ubuncane be-0,020% iyonke i-Al noma i-0,015% i-Al encibilikayo). b. Inani eliphezulu le-nitrogen alisebenzi uma ukwakheka kwamakhemikhali kubonisa okuqukethwe okungenani kwe-Al okungu-0,020% kanye nesilinganiso esincane se-Al/N esingu-2:1, noma uma kukhona ezinye izinto ezibophayo ze-N ezanele. Izinto ezibophayo ze-N kufanele ziqoshwe kuDokhumenti Yokuhlola.

Izici zethrafikhi ezisebenza kahle:

Ubuso obubushelelezi, obungenakuphazamiseka bangaphakathi bepayipi elihlanganisiwe kabili buvumela izici zokugeleza eziphumelelayo. Ngokungafani nezinye izinhlobo zamapayipi anezimbobo zangaphakathi noma izithiyo, la mapayipi aqinisekisa ukugeleza okuqhubekayo nokulinganayo koketshezi noma igesi, ngaleyo ndlela anciphise ukulahlekelwa ukungqubuzana. Izici zokugeleza eziphumelelayo zepayipi elihlanganisiwe kabili zisiza ukuthuthukisa ukusebenza kwezinqubo ezahlukahlukene zezimboni, okuhlanganisa izitshalo ze-petrochemical, izindawo zokuhlanza kanye nezindawo zokuhlanza amanzi.

Ekuphetheni:

Ekuphetheni, ipayipi elihlanganisiwe kabili liyisici esibalulekile esithuthukisa kakhulu ubuqotho besakhiwo samaphrojekthi ahlukahlukene okwakha. Izakhiwo zabo ezihlukile, okuhlanganisa ukushintshwa okungenamthungo, isilinganiso esiphezulu samandla nesisindo, ukumelana nokugqwala kanye nokugeleza okuphumelelayo, kubenza babe ukukhetha kokuqala kwezicelo ezidinga ukuthembeka, ukuqina kanye nokusebenza kahle kwezindleko. Ngokusebenzisa ipayipi elihlanganisiwe kabili, onjiniyela kanye nabakhi bangaqinisekisa ukusebenza okuhlala isikhathi eside nokuphephile kwengqalasizinda ebalulekile, okwenza kube yimpahla ebalulekile emkhakheni wokwakha nobunjiniyela.

Ngamafuphi, ipayipi lensimbi eliyindilinga le-S235 J0 linikeza ikhwalithi nokuqina okungenakuqhathaniswa kwakhoipayipi elihlanganisiwe elinobubanzi obukhulueizidingo zabo. Ngezinqubo zabo zokukhiqiza ezithuthukisiwe, ikhwalithi ephezulu yokushisela kanye nokuhlolwa kwekhwalithi okuphelele, imikhiqizo yethu iqinisekisiwe ukuthi izodlula okulindelwe. Themba iCangzhou Spiral Steel Pipe Group Co., Ltd.'Ubuchwepheshe kanye nesipiliyoni sokuhlangabezana nazo zonke izidingo zakho zamapayipi ensimbi.