Umthengisi ngaphandle China Steel Welded Carbon Umbhobho
Thumela ngaphandleUmbhobho wentsimbi yeCarbon,China Steel Pipe,Umbhobho wentsimbi yeCarbon ephantsi,imibhobho edityanisiweyo, evela eTshayina. Inkampani yethu igxile ekuthumeleni kumazwe angaphandle imibhobho yentsimbi edityanisiweyo kunye nemibhobho yentsimbi engenamthungo. Amawaka eetoni zemibhobho yentsimbi edityanisiweyo ithunyelwa kumazwe angaphandle minyaka le. Imibhobho edityanisiweyo ehlala ithunyelwa kumazwe angaphandle yohlulwe ngokwe-LSAW kunye ne-SSAW. Ngaba uyawazi umahluko phakathi koMbhobho we-LSAW kunye noMbhobho we-SSAW?
Umbhobho we-LSAW (i-Longitudinal Submerged Arc-Welding Pipe), ekwabizwa ngokuba ngumbhobho we-SAWL. Ithatha ipleyiti yentsimbi njengento ekrwada, iyibumbe ngomatshini wokubumba, emva koko wenze i-arc ye-arc enamacala amabini. Ngale nkqubo umbhobho wentsimbi we-LSAW uya kufumana i-ductility egqwesileyo, ukuqina kwe-weld, ukufana, iplastiki kunye nokutywinwa okukhulu.
Uluhlu lwedayamitha yombhobho we-LSAW likhulu kune-ERW, ngokuqhelekileyo ukusuka kwi-16 intshi ukuya kwi-intshi engama-60, 406mm ukuya kwi-1500mm. Ukusebenza kakuhle kukumelana noxinzelelo oluphezulu, kunye nobushushu obuphantsi bokumelana nokutyiwa.
Isetyenziswe ngokubanzi kwimibhobho yeoli nerhasi, ifuneka ngokukodwa idiameter enkulu kunye nombhobho ongqindilili wodonga onamandla amakhulu kunye nomgama omde. Okwangoku ekwakhiweni kwesakhiwo esifuna amandla anzima, unyango lwamanzi, imboni ye-thermal, isakhiwo sebhulorho, njl. Ngokutsho kwe-API, umbhobho we-LSAW (umbhobho we-SAWL okanye umbhobho we-JCOE) utyunjwe ngokukodwa kwi-oyile kunye negesi yothutho olukhulu, kwiimeko imibhobho ukunqumla isixeko, ulwandle, kunye nommandla wasezidolophini. Ezi ziindawo zeklasi 1 kunye neklasi yesi-2.
Umbhobho we-SSAW (i-Spiral Submerged Arc-Welding Pipe), ebizwa ngokuba yi-HSAW pipe (i-Helical SAW), i-welding line shape njenge-helix. Isebenzisa itekhnoloji ye-welding efanayo ye-Submerged Arc-Welding kunye nombhobho we-LSAW. Ngokwahlukileyo umbhobho we-SSAW ujijelwe ngokujiyileyo apho i-LSAW idityaniswe ngobude. Inkqubo yokuvelisa i-rolling strip yentsimbi, ukwenza ulwalathiso olujikelezayo lube ne-engile kunye nolwalathiso lweziko lombhobho, ukwenza kunye ne-welding, ngoko ke i-welding seam ikwi-spiral line.
Uluhlu lombhobho we-SSAW lusuka kwi-intshi engama-20 ukuya kwi-intshi ye-100, i-406 mm ukuya kwi-2540 mm. Inxalenye yenzuzo sinokufumana ububanzi obuhlukeneyo beepayipi ze-SSAW ezinobungakanani obufanayo bomgca wentsimbi, kukho isicelo esibanzi kwizinto eziluhlaza. umcu wentsimbi, kunye ne-welding seam kufuneka uphephe uxinzelelo oluphambili, ukusebenza kakuhle ukuthwala uxinzelelo.
Ukungalungi ngumlinganiselo ombi womzimba, ubude be-welding seam ubude kunobude bombhobho, kulula ukubangela iziphene zokuqhekeka, umngxuma womoya, ukufakwa kwe-cinder, i-welding inxalenye, amandla e-welding kwimeko yokutsala.
Kwiinkqubo zemibhobho ye-oyile kunye negesi, kodwa kwinkcazo yoyilo lwepetroleum, umbhobho we-SSAW / umbhobho we-HSAW unokusetyenziswa kuphela kwiklasi 3 kunye neendawo zeklasi 4. Isakhiwo sokwakha, ukuthuthwa kwamanzi kunye nokucocwa kwamanzi amdaka, imboni ye-thermal, izakhiwo njl.
Isishwankathelo
Isicelo
Isetyenziswa ikakhulu kumandla kunye noxinzelelo lwamalungu, kunye nenjongo eqhelekileyo yomphunga, amanzi, igesi kunye nemibhobho yomoya.
IBanga eliPhambili
G.A, GR.B
ICandelo leMichiza
| IBanga | Icandelo %，≤ | ||||||||
| C | Mn | P | S | CuA | NiA | CrA | MoA | VA | |
| Uhlobo lwe-S (umbhobho ongenamthungo) | |||||||||
| G.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Uhlobo lwe-E (umbhobho wokuchasa odityanisiweyo) | |||||||||
| G.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Uhlobo lwe-F | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
A Isimbuku sezi elementi zintlanu masingabi ngaphezu kwe-1.00%.
B Ngayo yonke i-0.01% yehla kwi-carbon content, umxholo we-manganese ophezulu uvumelekile ukuba unyuke ngo-0.06%, kodwa ubuninzi abukwazi ukudlula i-1.35%.
C Ukuncipha ngakunye kwe-0.01% kowona mxholo wekhabhoni uphezulu kuya kuvumela owona mxholo uphezulu wemanganese ukuba unyuke nge-0.06%, kodwa ubuninzi bungagqithi kwi-1.65%.
IPropati yoomatshini
| into | G.A | GR.B |
| amandla okuqina, ≥, psi [MPa] Amandla eSivuno, ≥, psi [MPa] Igeyiji 2in.okanye 50mm ubude | 48 000 [330]30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A Ubuncinane bobude begeyiji yobude obuyi-2in. (50mm) iya kumiselwa ngale fomula ilandelayo:
e=625000(1940)A0.2/U0.9
e = ubuncinane bobude begeyiji 2in. (50mm), ipesenti isondezwe kweyona 0.5% ikufutshane;
A = Kubalwa ngokwe-diameter yangaphandle echaziweyo yetyhubhu yegama okanye ububanzi begama lesampulu ye-tensile kunye nobukhulu bayo obuchaziweyo bodonga, kwaye ijikelezwe kwindawo ekufutshane ye-cross-sectional ye-tensile yesampuli ye-0.01 in.2 (1 mm2), kwaye Ithelekiswa ne-0.75in.2 (500mm2), nokuba yeyiphi encinci.
U = ubuncinci bamandla okuqina, i-psi (MPa).
B Kwiindibaniselwano ezahlukeneyo zobukhulu obahlukeneyo besampulu zovavanyo lwe-tensile kunye namandla amiselweyo amiselweyo, ubuncinane bobude obufunekayo buboniswa kwiTheyibhile X4.1 okanye kwiTheyibhile X4.2, ngokokusebenza kwayo.
Imfuneko yoVavanyo
Uvavanyo lwe-tensile, uvavanyo lokugoba, uvavanyo lwe-hydrostatic, uvavanyo lombane olungonakalisiyo lwe-welds.
Supply Ability
Amandla okubonelela: IiToni ezingama-2000 ngeNyanga ngeBanga ngalinye le-ASTM A53/A53M-2012 iPipe yentsimbi
Ukupakishwa
Kwimiyanda kunye nakwiBhokisi yoMthi eyomeleleyo
Ukuhanjiswa
7-14 iintsuku ukuba isitokhwe, 30-45 iintsuku ukuvelisa
Intlawulo
30% idepsoit, 70% L/C okanye B/L ikopi okanye 100% L/C ngokubona
Iinkcukacha zeMveliso
Umbhobho weBhola
GB/T 8162-2008
I-ASTM A519-2006
I-BS EN10210-1-2006
I-ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
