I-Spiral Submerged Arc Welded Pipe In API 5L Line Pipe Applications

Ipayipi Edibeneyo ye-Arc efakwe kwi-Spiral Submerged kwi-API 5L Line Pipe Applications Umfanekiso Ovezweyo

Inkcazo emfutshane:

Kwicandelo lokuthuthwa kweoyile negesi, ukusetyenziswa kwemibhobho edibeneyo ye-arc ejikelezileyo kuya kuxhaphaka ngakumbi, ingakumbi ekwakhiweni kweenkqubo zemibhobho yomgca we-API 5L. Umbhobho we-SSAW (i-arc edibeneyo) waziwa ngamandla awo aphezulu, ukuqina kwawo kunye nokuguquguquka, okwenza ukuba ulungele ukusetyenziswa okufunwayo okufana nomzi-mveliso weoyile negesi.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

IUmbhobho womgca we-API 5LUmgangatho yinkcazo eyenziwe yi-American Petroleum Institute (API) yokuthutha igesi yendalo, ioyile kunye namanzi. Ichaza iimfuno zokwenziwa kwemibhobho yentsimbi edityanisiweyo kwaye ibeka izikhokelo ezingqongqo zomgangatho, amandla kunye nokusebenza kwezi mibhobho.

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	-	-

Umbhobho we-SSAWyenziwe kusetyenziswa inkqubo yokuwelda ye-arc engaphantsi komhlaba equka ukwenza i-coil yentsimbi ibe yimo engqukuva uze usebenzise i-arc yokuwelda ukudibanisa imiphetho ye-coil kunye.

Enye yezona nzuzo ziphambili zokusebenzisa umbhobho ofakwe i-spiral submerged arc welded kwizicelo zombhobho we-API 5L kukwazi kwawo ukumelana namanqanaba aphezulu oxinzelelo lwangaphakathi nolwangaphandle. Oku kubaluleke kakhulu kwishishini leoyile negesi, apho imibhobho ichaphazeleka kwiimeko ezinzima kunye nemithwalo enzima. Ukwakhiwa okuqinileyo kwemibhobho ye-SSAW kwenza kube yeyona ifanelekileyo kwimibhobho esebenza kuxinzelelo oluphezulu kunye namaqondo obushushu, ibonelela ngesisombululo esithembekileyo nesihlala ixesha elide sokuthutha izixhobo ezixabisekileyo.

Ukongeza, ukuguquguquka kombhobho odibeneyo we-spiral submerged arc kwenza kube lula ukuwufaka nokuyigcina, nto leyo eyenza kube lukhetho olungabizi kakhulu kwiiprojekthi zokwakha imibhobho. Ukukwazi kwabo ukuguqa nokuhambelana neemeko zendalo zomhlaba kususa isidingo sokwenza izixhobo zokufakela ngokwezifiso ezibizayo nezithatha ixesha elide kwaye kunciphisa umngcipheko wokuvuza nokungaphumeleli. Ukongeza, umphezulu ongaphakathi ogudileyo wemibhobho ye-SSAW unciphisa ukungqubana kunye nokuxinana, okubangela ukuhamba kakuhle kunye nokusetyenziswa kwamandla okuphantsi.

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.

Ngamafutshane, ukusetyenziswa kombhobho odibeneyo we-spiral submerged arc kwizicelo zombhobho womgca we-API 5L kunika uthotho lweenzuzo ezenza ukuba ibe lukhetho olunomtsalane kushishino lweoyile negesi. Amandla azo, ukuqina kunye nokuguquguquka kwazo kuzenza zilungele ukusetyenziswa kwiindawo ezifuna kakhulu, ngelixa ukulula kwazo ukufakwa kunye neemfuno zolondolozo eziphantsi zibonelela ngesisombululo esingabizi kakhulu kwiiprojekthi zokwakha imibhobho. Njengoko imfuno yothutho oluthembekileyo nolusebenzayo lweoyile, igesi yendalo kunye namanzi iqhubeka ikhula, ukubaluleka kombhobho odibeneyo we-spiral submerged arc submerged kwimigangatho yombhobho womgca we-API 5L akunakugqithiswa. Ngomsebenzi wayo oqinisekisiweyo kunye nokuguquguquka,umbhobho we-arc ongaphantsi komhlaba ojikelezayokulindeleke ukuba iqhubeke nokuba yinxalenye ebalulekileyo yeziseko zophuhliso eziqhuba uqoqosho lwehlabathi.