Iipayipi eziDityanisiweyo ze-Arc ezifakwe emanzini kabini ukuze kuphuculwe uBume beSakhiwo

Inkcazo emfutshane:

Le nxalenye yale Migangatho yaseYurophu ichaza iimeko zobuchwephesha zokuhanjiswa kwezakhiwo ezidityanisiweyo ezibandayo, ezingenanto zineefom ezijikelezayo, ezisikwere okanye ezizingxande kwaye isebenza kwiindawo ezingenanto zibandayo ngaphandle konyango lobushushu olulandelayo.

I-Cangzhou Spiral Steel Pipes Group Co., Ltd ibonelela ngemibhobho yentsimbi engqukuva enemibhobho yesangqa.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Yazisa:

Kwicandelo lobunjineli bezakhiwo, ukubaluleka kokusebenzisa izixhobo ezisemgangathweni kunye neendlela zokwakha akunakugxininiswa kakhulu. Phakathi kwezinto ezahlukeneyo ezisetyenziswa kwiiprojekthi zokwakha, iipayipi zidlala indima ebalulekileyo. Siza kukhanyisa ukubaluleka kweepayipi ezidityanisiweyo kabini kwaye sihlolisise iimpawu zazo, iingenelo kunye nendlela ezinokunceda ngayo ukuphucula ukuthembeka kwesakhiwo.

Funda ngeepayipi ezidityanisiweyo kabini:

Umbhobho odibeneyo kabini, okwaziwa ngokuba ngumbhobho odibeneyo we-arc odibeneyo kabini ngaphantsi komhlaba (Iipayipi zeDSAW), yenziwa kusetyenziswa inkqubo yokuwelda ye-arc engaphantsi komhlaba. Le teknoloji ibandakanya ukudibanisa iipleyiti ezimbini zentsimbi ezahlukeneyo ngobude, inika unxibelelwano oluqinileyo noluqhubekayo. Le mibhobho isetyenziswa kakhulu kwizicelo zoxinzelelo oluphezulu, imibhobho yamanzi angaphantsi komhlaba kunye negesi yendalo, uphando lweoyile, kunye namaqonga aselunxwemeni.

Ipropati yoomatshini

inqanaba lesinyithi	amandla amancinci okuvelisa I-Mpa		Tensile strength		Ubuncinane bobude %	Amandla amancinci empembelelo J
inqanaba lesinyithi	Ubukhulu obuchaziweyo mm		Ubukhulu obuchaziweyo mm		Ubukhulu obuchaziweyo mm	kubushushu bovavanyo lwe
	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	-	-

Ukuphucula ukuthembeka kwesakhiwo:

Isizathu esiphambili sokusebenzisaumbhobho odibeneyo kabiniyikhono lazo lokuphucula ukuthembeka kwesakhiwo. Ngee-welds ezingenamthungo neziqinileyo, ezi mbhobho zibonelela ngokumelana okuphezulu koxinzelelo kunye nokuqina. I-weld ephindwe kabini iqinisekisa ukuba umbhobho unokumelana namanqanaba aphezulu oxinzelelo, okwenza ukuba ube yeyona ifanelekileyo kwizicelo ezibalulekileyo apho i-weld enye inokubeka emngciphekweni ukhuseleko lwesakhiwo. Le nkqubo ye-welding ephindwe kabini isusa amathuba okuvuza okanye ukuqhekeka, iqinisekisa ukuthembeka kwexesha elide kwenkqubo yakho yepayipi.

Umlinganiselo ophezulu wamandla xa uthelekiswa nobunzima:

Umbhobho odibeneyo kabini unika umlinganiselo ogqwesileyo wokuqina kobunzima. Ngenxa yenkqubo yokudibanisa, le mibhobho inobukhulu obunciphileyo bodonga kwaye ilula ngelixa igcina ukuqina kwesakhiwo. Le nzuzo yomlinganiselo wokuqina kobunzima inciphisa umthwalo uwonke kwisakhiwo esixhasayo, nto leyo eyenza ukuba ibe sisisombululo esingabizi kakhulu kwiiprojekthi ezinkulu ezifana neebhulorho, iinqaba, kunye nezakhiwo eziphakamileyo.

Ukumelana nokugqwala:

Enye inzuzo ebalulekileyo yombhobho odibeneyo kabini kukumelana kwawo nokugqwala. Itywina eliqinileyo elidibeneyo lenza umqobo onamandla nxamnye nezinto zangaphandle, kubandakanya ukufuma, iikhemikhali kunye neempawu zomhlaba. Oku kuthintela umphezulu wangaphakathi wombhobho ukuba ungadibani ngqo neearhente zokugqwala, okuqinisekisa ubomi benkonzo obude xa kuthelekiswa nemibhobho eqhelekileyo. Iimpawu zokugqwala zale mibhobho ziluncedo kakhulu kwishishini leoyile negesi, apho imibhobho idla ngokudibana neemeko ezinzima.

Ukwenziwa kweeKhemikhali

Ibanga lentsimbi		Uhlobo lokususa i-oxidation	% ngobunzima, ubuninzi
Igama lentsimbi	Inombolo yentsimbi	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 ioksijini ichazwe ngolu hlobo lulandelayo: FF: Intsimbi ebulewe ngokupheleleyo equlethe izinto zokubopha initrogen ngobuninzi obaneleyo ukubopha initrogen ekhoyo (umz. ubuncinci be-0,020% iyonke ye-Al okanye i-0,015% ye-Al enyibilikayo). b. Ixabiso eliphezulu le-nitrogen alisebenzi ukuba ukwakheka kweekhemikhali kubonisa umxholo opheleleyo we-Al ongama-0,020% kunye nomlinganiselo ophantsi we-Al/N oyi-2:1, okanye ukuba kukho ezinye izinto ezaneleyo zokubopha i-N. Izinto zokubopha i-N mazirekhodwe kuXwebhu loHlolo.

Iimpawu zendlela ezisebenzayo:

Umphezulu ongaphakathi ogudileyo nongaphazanyiswayo wombhobho odibeneyo kabini uvumela iimpawu zokuhamba kakuhle. Ngokungafaniyo nezinye iintlobo zemibhobho enezithintelo zangaphakathi okanye ezithintelayo, le mibhobho iqinisekisa ukuhamba okuqhubekayo nokulinganayo kolwelo okanye igesi, ngaloo ndlela inciphisa ilahleko zokungqubana. Iimpawu zokuhamba kakuhle zombhobho odibeneyo kabini zinceda ukuphucula ukusebenza kweenkqubo ezahlukeneyo zoshishino, kubandakanya izityalo zepetrochemical, iindawo zokucoca kunye nezibonelelo zonyango lwamanzi.

Ukuququmbela:

Ukuqukumbela, umbhobho odibeneyo kabini yinxalenye ebalulekileyo ephucula kakhulu ukuthembeka kwesakhiwo seeprojekthi ezahlukeneyo zokwakha. Iimpawu zazo ezizodwa, kubandakanya ii-welds ezingenamthungo, umlinganiselo ophezulu wamandla-ubunzima, ukumelana nokugqwala kunye nokuhamba kakuhle, zenza ukuba zibe lukhetho lokuqala kwizicelo ezifuna ukuthembeka, ukuqina kunye nokusebenza kakuhle kweendleko. Ngokusebenzisa umbhobho odibeneyo kabini, iinjineli kunye nabakhi banokuqinisekisa ukusebenza okuhlala ixesha elide nokukhuselekileyo kweziseko ezibalulekileyo, okwenza kube yinto exabisekileyo kwicandelo lokwakha nobunjineli.

Ngamafutshane, umbhobho wentsimbi ojikelezayo we-S235 J0 ubonelela ngomgangatho ongenakuthelekiswa nanto kunye nokuqina kwakhoipayipi edibeneyo enobubanzi obukhulueIimfuno. Ngeenkqubo zabo zokuvelisa eziphambili, umgangatho ophezulu wokuwelda kunye nokuhlolwa komgangatho opheleleyo, iimveliso zethu ziqinisekisiwe ukuba ziya kudlula ulindelo lwakho. Themba iCangzhou Spiral Steel Pipe Group Co., Ltd.'ubuchule namava okuhlangabezana nazo zonke iimfuno zakho zepayipi yentsimbi.