Weld Ukwaleka kweFlange

A i-weld yale flangeyiflange engumhlwa enomhlwa{0}}i-alloy ekwaziyo ukumelana ne-alloy layer efakwe kulwelo{1}}lokudityaniswa nomphezulu ngokuwelda. Isiseko se-flange sithwala umthwalo woxinzelelo kunye ne-bolting force, ngelixa i-CRA i-overlay layer ikhusela i-bore, i-sealing face, i-RTJ groove, i-neck transition, okanye ezinye iindawo ezimanzi ezivela kwimidiya ephazamisayo.

Esi sakhiwo sisetyenziswa xa i-carbon steel standard okanye i-alloy iron flange inamandla aneleyo omatshini, kodwa icala lenkqubo lifuna ukuxhathisa okuqinileyo. Iimeko zenkonzo eqhelekileyo ziquka irhasi emuncu, CO₂-equlathe irhasi, inaliti yamanzi olwandle, amanzi avelisiweyo, ikloridi{2}}ethwele ulwelo, imidiya yokucoca, imigca yepetrochemical process, kunye noqhagamshelo lwemibhobho ekude nonxweme.

Xa kuthelekiswa ne-alloy flange eqinileyo, i-weld overlay ivumela iprojekthi ukuba isebenzise umhlwa{0}}i-alloy enganyangekiyo kuphela kumphezulu woqhagamshelwano ofunekayo. Oku kunceda ukulawula iindleko zempahla ngelixa ugcina umzimba we-flange womelele ngokwaneleyo kwiklasi yoxinzelelo olufunekayo. Octal Steel izixhoboiiflange ezibunjiweyo zeweldkwi weld entanyeni, imfama, RTJ, tyibilika -on, kunye nesiqhelo umzobo -intlobo ezisekwe, kuqukaIngxubevange 625 / Inconel 625 Weld Overlay Flange, Ingxubevange 825, 316L, 904L, duplex steel stainless, kunye super duplex steel stainless iinketho zokwaleka.

I-weld overlay flange yakhiwe kwiinkqubo zezinto ezimbini. Isiseko sokubunjwa sibonelela ngamandla omatshini, ukukala koxinzelelo, ijometri yeflange, kunye nokuzinza kwebholiti. Izinto ezingaphezulu zibonelela ngokumelana nokubola kwicala elimanzi.

Isiseko sezinto eziqhelekileyo ziquka i-ASTM A105 ye-carbon steel standard foged flanges, i-A350 LF2 yenkonzo ephantsi{3}}yobushushu, i-A694 F52 / F60 / F65 / F70 yeenkqubo zokuhambisa uxinzelelo oluphezulu, kunye ne-A182 yamabanga entsimbi yealloyi, insimbi engenasici, i-duplex, okanye i-duplex ene-super duplex.

I-alloy engaphezulu ye-CRA kufuneka ikhethwe ngokweyona ndlela yenkqubo. Ixabiso lodwa alikho isiseko sokhetho olukhuselekileyo. I-H₂S, i-CO₂, i-chloride yoxinaniso, ubushushu bokusebenza, uxinzelelo, umxholo wamanzi, i-pH, i-oxygen ingress, kunye nezixhobo zombhobho ezixhunyiwe zonke zinokuchaphazela ukhetho lokugqibela lwezinto eziphathekayo.

KubaUkwaleka kwe-flange kwi-weldiiprojekthi, i-alloy engaphezulu kufuneka ihambelane necandelo elidibeneyo. Ukuba i-flange idibaniswe nombhobho ogqunyiweyo, i-CRA -umbhobho we-lined, umbhobho wokwaleka, i-corrosion-i-valve enganyangekiyo, i-spool, okanye i-manifold, umda ogqithisiweyo kufuneka uhlaziywe ukuze i-carbon steel engakhuselekanga ingabonakali kwindlela yokuhamba.

Indawo yokwaleka ayiyonkcukacha encinci. Ithatha isigqibo ngeendleko, isibonelelo somatshini, indawo yokuhlola, kunye nokuba i-flange inokukhusela ngokwenene umgangatho omanzi. Inqaku lokuthenga elithi "i-CRA iyafuneka" idla ngokunganelanga. Umzobo kufuneka ubonise ngokuchanekileyo apho kufuneka i-weld overlay layer.

I-RTJ i-weld flanges yokwaleka ifuna ingqalelo eyongezelelweyo. I-ring groove yindawo yokutywina, kungekhona nje iprofayili yomatshini. Emva kokwaleka kunye nomatshini wokugqibela, i-groove kufuneka ihlolwe ubungakanani, imeko yomphezulu, isiphumo se-PT, kunye nobukhulu obusele obungaphezulu.

Kwiiflange zobuso obuphakanyisiweyo, indawo yokudibanisa i-gasket kufuneka ilawulwe emva kokujongana kokugqibela. Umaleko obonakalayo ogudileyo we-CRA awanelanga ukuba ubuso bokutywina buthambileyo, ukugqiba, okanye ubukhulu emva komatshini awuhlangabezani nemfuneko yomzobo.

Ukwenziwa kweiiflange ezibunjiweyo zeweldyahlukile kwi-flange machining eqhelekileyo. Inkqubo kufuneka ithathele ingqalelo i-welding dilution, isibonelelo somatshini, ikhemistri yokugqibela, kunye nokutywinwa komphezulu wejometri ngaxeshanye.

Indlela yemveliso ebonakalayo idla ngokubandakanya la manyathelo alandelayo:

1. Uphononongo olusisiseko lokubumba
Isixhobo somzimba weflange, inombolo yobushushu, umgangatho wokwenza, iklasi yoxinzelelo, uhlobo olujongene nayo, kunye ne-MTC ziyajongwa phambi kokuba umsebenzi wokwaleka uqale. Eli nyathelo liqinisekisa ukuba i-flange yesiseko ngokwayo ihambelana nomyalelo wokuthenga kunye nomzobo weprojekthi.

2 
Ukubhoreka, ubuso obuphakanyisiweyo, i-RTJ groove, ubuso bangaphakathi obuyimfama, utshintsho lwentamo, okanye ezinye iindawo ezimanzi zijongwa kwakhona kumzobo. Isibonelelo soomatshini esaneleyo kufuneka sicwangciswe ukuze indawo yokugqibela yomatshini igcine umaleko ofunekayo we-CRA.

3. I-WPS / PQR kunye nokulungiselela isinyithi sokuzalisa
Inkqubo yokwaleka kwe-weld, i-filler metal, inkqubo ye-welding, uluhlu lwegalelo lobushushu, ukulandelelana komgangatho, kunye nokufaneleka kwe-welder kufuneka kulungiswe ngaphambi kokuveliswa. Oku kubaluleke kakhulu kwi-Alloy 625, i-Alloy 825, i-duplex, kunye nomsebenzi ongaphezulu ongaphezulu we-duplex.

4. Ukubekwa kweweld ye-CRA
Uluhlu lwe-CRA lufakwe ngabafaki be-welders abaqeqeshiweyo okanye abaqhubi be-welding. I-Multi- umaleko ongaphezulu udla ngokusetyenziswa kuba umaleko wokuqala unokuhlanjululwa ngesiseko sesinyithi. Ukwamkelwa kokugqibela kufuneka kusekelwe kumphezulu ogqityiweyo emva komatshini.

5. Ukucoca okuphakathi kunye nokulawula okubonakalayo
Ukucoca phakathi kokudlula kunceda ukuphepha i-slag, ukungcola, ukungabikho kokudibanisa, kunye neziphene zomhlaba. Eli nyathelo ayingomsebenzi wokuhlobisa; ihlala ithatha isigqibo sokuba ngaba ukuhlolwa kwe-PT kamva kuya kudlula ngokucocekileyo.

6. Uphononongo lwe-PWHT xa lufuneka
Ezinye izinto ezisisiseko okanye iinkcukacha zeprojekthi zinokufuna{0}unyango lwe-weld yobushushu. I-PWHT kufuneka iphononongwe phambi kwemveliso kuba inokuchaphazela ubulukhuni, ulawulo lobungakanani, kunye nesicwangciso sokugqibela sokuhlola.

7. Umatshini orhabaxa kunye noomatshini bokugqibela
Emva kokwaleka kwewelding, iflange yenziwe ngoomatshini bokugqibela, ijonge, i-RTJ groove, umngxuma webholiti, kunye nemilinganiselo yokutywina. Kulapho ukuveliswa kokungakhathali kunokususa izinto ezininzi ze-CRA. Ubuncinci obugqityiweyo ubungqimba bokwaleka kufuneka bugcinwe emva kwesi sigaba.

8. Uhlolo lokugqibela kunye nophononongo lwamaxwebhu
I-PT, i-PMI, ubunzima, i-ferrite, ukuhlolwa kwe-dimensional, kunye nokuhlolwa kokugqiba umphezulu kwenziwa ngokwemfuno yeprojekthi. Iingxelo kufuneka zihambelane nokumakishwa kweflange, inombolo yobushushu, kunye noluhlu lokupakisha ngaphambi kokuthunyelwa.

Ukufumana ingcaciso ebanzi yobugcisa yenkqubo yokwaleka kweweld kuyo yonke imibhobho, iflange kunye neemveliso zepleyiti, bona eyethuisikhokelo sokwaleka kweweld.

Kwiiflange zokwaleka kweweld, uhlolo kufuneka lungqine izinto ezimbini: iflange esisiseko ihlangabezana neemfuno zoomatshini kunye ne-dimensional, kwaye isalekwe se-CRA sihlangabezana ne-corrosion{0}}iimfuno zenkonzo. Ukuba elinye icala libuthathaka, i-flange inokusilela ukwamkelwa kweprojekthi.

PMI emva komatshiniibaluleke ngokukodwa. Ukuba i-PMI yenziwa kuphela phambi komatshini wokugqibela, isenokungameli ngokupheleleyo umphezulu oya kuqhagamshelana nenkqubo yenkqubo. Kwinkonzo emuncu okanye yekloridi -enokuzala, umphezulu we-CRA owenziwe ngomatshini yeyona ndawo ibalulekileyo.

Ukuthunyelwa kwamanye amazwe, ukuhambelana kwamaxwebhu yinxalenye yolawulo lomgangatho. Inombolo yobushushu, isatifikethi sezinto ezisisiseko, i-alloy engaphezulu, ingxelo ye-PMI, ingxelo ye-PT, uluhlu lokupakisha, kunye nokumakishwa kwe-flange kufuneka kudibanise ngokucacileyo. Oku kunciphisa umngcipheko wokufumana ukulibaziseka kokuhlolwa okubangelwa ziirekhodi ezingekhoyo okanye ezingahambelaniyo.

I-Weld overlay flanges isetyenziswa apho umzimba weflange udinga amandla aqhelekileyo woxinzelelo, kodwa ulwelo{0}}lokumphezulu odityanisiweyo kufuneka luxhathise ukuhlwa okuvela kwirhasi emuncu, ikloridi{1}ethwele amanzi, amanzi olwandle, imidiya eneasidi okanye ulwelo olunamandla. Ngokungafaniyo nesiqheloweld kwi flangeekhethiweyo ikakhulu uqhagamshelo lombhobho kunye neklasi yoxinzelelo, i-weld overlay flange kufuneka ilawule umphezulu we-CRA ovezwe phakathi.

• Ukuveliswa kwegesi emuncu kunye neenkqubo zokuqokelela

Kwinkonzo ye-H₂S{0}}equlethe, umzimba we-flange unokufuna intsimbi ye-carbon steel okanye amandla entsimbi ephantsi, ngelixa umphezulu omanzi ufuna ukhuseleko lwe-CRA. Ukwaleka kwe-alloy 625 ngokuqhelekileyo kuphononongwa ngolu hlobo lwenkonzo. Ukulawulwa kobunzima, imeko ye-HAZ, kunye neemfuno ze-NACE MR0175 / ISO 15156 kufuneka zihlolwe ngaphambi kokuveliswa.

• Isitofu samanzi olwandle kunye nemigca yamanzi eveliswe

Amanzi olwandle kunye namanzi avelisiweyo anokuba neekloridi, iigesi ezinyityilisiweyo, isanti, isikali kunye nabanye abaqhubi be-corrosion. Ibhore yaleleka, ubuso obunyusiweyo kunye nentamo yenguqu yalekayo inceda ukunciphisa umngcipheko wentsimbi yekhabhoni kwindawo yolwelo{1}}yokuqhagamshelwana nayo.

• Offshore kunye ne-subsea ujongano

Iiprojekthi zaselunxwemeni zihlala zifuna uhlolo olungqongqo kunye namaxwebhu. Iigrooves ze-RTJ, ubuso begasket, uqhagamshelo oluninzi, ujongano lwevalvu kunye noqhagamshelo lwe-spool edibeneyo inokufuna i-PMI, i-PT, uvavanyo lobunzima, uvavanyo lwe-ferrite, uhlolo olubanzi kunye-neendawo zobungqina bomntu wesithathu.

• Ukucoca kunye nemigca yenkqubo yepetrochemical

Imidiya yenkqubo yeAcidic, ikloridi{0}equlathe ulwelo,{1}}imisinga yobushushu obuphezulu kunye nemekobume exutyiweyo enomhlwa inokufuna ukhuseleko lwe-CRA kumphezulu omanzi weflange. Ukwaleka kwe-Weld kuvumela iprojekthi ukuba isebenzise uxinzelelo olusemgangathweni{3}} olunomzimba weflange ngelixa iphucula ukumelana nokuhlwa apho i-medium idibana ngokwenene necandelo.

• Umbhobho onxibe, CRA{0}}umbhobho onemigca kunye nemidibaniso emininzi

Iiflange zokwaleka kweweld zihlala zisetyenziswa ngombhobho ohonjisiweyo, i-CRA-umbhobho ofakwe imigca, umbhobho owelekwe weld, iivalvu, iispools kunye neemanifolds. Indawo yokwaleka kufuneka ihambelane necandelo elidityanisiweyo ukuze umhlwa{2}}umendo oxhathisayo uhlale uqhubekile.

Intsimbi yeOctalixhasa le nkqubo ukusuka kuphononongo lwemathiriyeli ukuya ekukhululweni ngenqanawa. Sinceda ukulungelelanisa isiseko se-flange, i-alloy engaphezulu, ubukhulu obugqityiweyo, uhlobo olujongene nalo, imfuno ye-RTJ groove, kunye nokuhlola umda phambi kokuba imveliso iqale, ngoko ke i-flange enikezelweyo kulula ukuyiqinisekisa ekufumaneni ukuhlolwa.

Inzuzo yethu ayikho kuphela uluhlu lokubonelela, kodwaulungelelwaniso lweprojekthi: ukufunwa kweflange engumgunyathi, ulawulo lokwaleka kwe-CRA, ukwenziwa komatshini wokugqibela, i-PMI / PT / ukuhlolwa kobulukhuni, inkxaso yokuhlola yeqela lesithathu, kunye nolungiselelo loxwebhu lokuthumela ngaphandle lunokulawulwa kwisixokelelwano esinye sobonelelo. Oku kunciphisa umngcipheko weemathiriyeli ezingahambelaniyo, umda ongacacanga wokwaleka, iingxelo ezingekhoyo, okanye ukutywina{2}}ukonakala kobuso phambi kokuthunyelwa.

I-odolo yokuthumela ngaphandle, i-Octal Steel iphinda ihlawule ukupakisha ukukhuselwa kweendawo ezinomatshini, i-RTJ grooves, ubuso obuphakanyisiweyo, imingxuma yebholiti, kunye nokumakishwa kwe-flange, inceda i-flange ifike kunye nemeko yemveliso kunye nephakheji yoxwebhu elungele ukuphononongwa kweprojekthi.

Qhagamshelana ngoku

FAQ

 

01.Yintoni efanele icaciswe xa u-odola iiflange zokwaleka kweeweld?

Abathengi kufuneka bachaze uhlobo lwe-flange, ubungakanani, iklasi yoxinzelelo, uhlobo olujongene nayo, izinto ezisisiseko, i-alloy engaphezulu, indawo engaphezulu, kunye nobukhulu obuncinci obugqityiweyo emva komatshini. Kwinkonzo ebalulekileyo, i-PMI, i-PT, ubulukhuni, uvavanyo lwe-ferrite, i-WPS/PQR, kunye -neemfuno zokuhlola zeqela lesithathu nazo kufuneka zidweliswe kumyalelo wokuthenga.

02.Yeyiphi imimandla yeflange eyalekeneyo yeweld efuna ukwaleka kwe-CRA?

Iindawo zokwaleka eziqhelekileyo kukubhore, ubuso obuphakanyisiweyo, i-RTJ groove, i-neck transition, ubuso bangaphakathi obungaboniyo, kunye nezinye iindawo ezimanzi eziboniswe kumzobo. Indawo yokwaleka kufuneka imakishwe ngokucacileyo kuba nayiphi na intsimbi yekhabhoni evezwayo kwindlela yokuhamba ingaba yingozi yokubola.

03.Kutheni i-Inconel 625 isetyenziselwa i-weld overlay flanges?

I-Inconel 625 / Alloy 625 iqhele ukukhethelwa irhasi emuncu, inaliti yamanzi olwandle, amanzi avelisiweyo, imibhobho engaselunxwemeni, kunye nenkonzo yokuthwala ikloridi{2}}. Ukwamkelwa, umgangatho wokugqibela owenziwe ngoomatshini kufuneka uqinisekiswe yi-PMI okanye ukukhangela imichiza, kuba i-dilution evela kwisiseko sesinyithi inokuchaphazela i-surface chemistry.

04.Bubuphi ubungqingqwa bokwaleka obuqhelekileyo obugqityiweyo beeflange zokwaleka kweweld?

Iiprojekthi ezininzi zichaza ubuncinci obugqityiweyo bokutyeba be-CRA, rhoqo ukujikeleza3.0 mm emva komatshini wokugqibela, kodwa ixabiso elichanekileyo kufuneka lilandele umzobo weprojekthi okanye iinkcukacha. Inqaku eliphambili kukuqinisekisa ubungqingqwa obushiyekileyo bokwaleka kumphezulu omanzi ogqityiweyo, hayi kuphela{1}njengediphozithi edityanisiweyo.

Iziqinisekiso

 

Isatifikethi seCE

Isatifikethi se-ISO 9001

Isatifikethi se-API Q1

Isatifikethi se-ABS

Isatifikethi se-AP-5L

Isatifikethi se-API-5CT

 

Iifayile ezishisayo: iiflange zokwaleka kweweld, iflange yokwaleka kweweld, i-Inconel 625 iflange yokwaleka kweweld, iflange eyalekeneyo yeweld, iflange yokwaleka kweweld, iflange yokwaleka kweweld, iCRA weld overlay iflange