Weld Overlay Flange

A waldi mai rufi flangejabun flange ne tare da lalata -lashin alloy mai juriya da aka ajiye akan ruwan - farfajiyar lamba ta hanyar walda. Flange na tushe yana ɗaukar nauyin matsa lamba da ƙarfi, yayin da murfin CRA mai rufi yana kare ƙura, fuskar rufewa, tsagi na RTJ, canjin wuya, ko wasu wuraren da aka jika daga kafofin watsa labarai masu lalata.

Ana amfani da wannan tsarin lokacin da daidaitaccen ƙarfe na carbon ko ƙaramin ƙarfe mai ƙarancin ƙarfe yana da isasshen ƙarfin inji, amma gefen aiwatar yana buƙatar juriya mai ƙarfi. Sharuɗɗan sabis na yau da kullun sun haɗa da iskar gas, CO₂-mai ɗauke da iskar gas, allurar ruwan teku, ruwan da aka samar, chloride{2}}ruwa mai ɗaukar nauyi, kafofin watsa labarai na matatar mai, layin sarrafa man petrochemical, da haɗin bututun teku.

Idan aka kwatanta da ƙaƙƙarfan flange na gami, mai rufin walda yana ba da damar aikin yin amfani da lalatawa{0}gawon juriya kawai akan wurin da ake buƙata. Wannan yana taimakawa sarrafa farashin kayan yayin da yake kiyaye jikin flange mai ƙarfi don aji da ake buƙata. Octal Karfe kayayyakiweld mai rufi jabun flangesa cikin wuyan walda, makafi, RTJ, zamewa{0}}a, da zanen al'ada{1} iri, gami daAlloy 625 / Inconel 625 Weld Overlay Flange, Alloy 825, 316L, 904L, duplex bakin karfe, kuma super duplex bakin karfe mai rufi zažužžukan.

An gina flange mai rufin walda daga tsarin abu biyu. Ƙirƙirar tushe tana ba da ƙarfin injina, ƙimar matsa lamba, lissafin flange, da kwanciyar hankali. Kayan da aka rufe yana ba da juriya na lalata a gefen da aka jika.

Common tushe kayan sun hada da ASTM A105 ga misali carbon karfe ƙirƙira flanges, A350 LF2 for low{3} sabis zafin jiki, A694 F52 / F60 / F65 / F70 for high{9}} matsa lamba watsa tsarin, da A182 maki ga gami karfe, bakin karfe, duplex, ko super buƙatun ƙirƙira flange.

Yakamata a zaɓi alloy mai rufi na CRA bisa ga ainihin matsakaicin tsari. Farashin kawai ba shine tushen zaɓi mai aminci ba. H₂S, CO₂, chloride maida hankali, zafin aiki, matsa lamba, abun ciki na ruwa, pH, iskar oxygen, da kayan bututun da aka haɗa duk na iya rinjayar zaɓin abu na ƙarshe.

Dominflange cladding weld mai rufiayyukan, abin rufe fuska ya kamata kuma ya dace da bangaren da aka haɗa. Idan an haɗa flange tare da bututu mai rufi, CRA{1}} bututu mai layi, bututu mai rufi, lalata{2}} bawul mai juriya, spool, ko manifold, ya kamata a sake duba iyakar mai rufi ta yadda karfen carbon da ba shi da kariya ba a fallasa hanyar kwarara.

Wurin da aka rufe ba ƙaramin bayani ba ne. Yana yanke shawarar farashi, izinin injin, iyawar dubawa, da ko flange na iya kare zahirin farfajiyar da aka jika. Bayanan siyan da ke cewa "CRA mai rufi da ake buƙata" yawanci bai isa ba. Zane ya kamata ya nuna daidai inda ake buƙatar murfin walda.

Flanges mai rufi na RTJ yana buƙatar ƙarin kulawa. Wurin zobe wuri ne na hatimi, ba kawai bayanin martaba ba. Bayan rufewa da injina na ƙarshe, yakamata a bincika tsagi don girman, yanayin saman, sakamakon PT, da sauran kauri mai rufi.

Don flanges na fuska, yakamata a sarrafa yankin tuntuɓar gasket bayan fuskantar ƙarshe. Tsarin CRA mai santsi na gani bai isa ba idan rufewar fuska mai laushi, ƙarewa, ko kauri bayan mashin ɗin bai cika buƙatun zane ba.

Masana'antu naweld mai rufi jabun flangesya bambanta da na yau da kullun flange machining. Dole ne tsarin ya yi la'akari da dilution na walda, izinin injina, sunadarai na ƙarshe, da kuma rufewa saman geometry a lokaci guda.

Hanya mai amfani tana haɗawa da matakai masu zuwa:

1. Tushen ƙirƙira bita
Ana duba kayan jikin flange, lambar zafi, ƙirar ƙirƙira, ajin matsin lamba, nau'in fuskantar, da MTC kafin aikin rufewa ya fara. Wannan matakin yana tabbatar da cewa flange na tushe da kansa ya dace da tsarin siye da zanen aikin.

2. Shafi{1}}tabbatar ba da izini na yanki
An yi bitar busasshiyar fuska, fuska mai ɗagawa, tsagi na RTJ, fuskar ciki makaho, canjin wuya, ko wasu wuraren da aka jika a kan zane. Dole ne a shirya isassun alawus ɗin injina ta yadda mashin ɗin na ƙarshe ya ci gaba da riƙe abin da ake buƙata na CRA.

3. WPS / PQR da shirye-shiryen ƙarfe na filler
Ya kamata a shirya tsarin mai rufin walda, ƙarfe mai filler, tsarin walda, kewayon shigar da zafi, jerin layi, da cancantar walda kafin samarwa. Wannan yana da mahimmanci musamman ga Alloy 625, Alloy 825, duplex, da super duplex overlay work.

4. CRA walda mai rufi jijiya
ƙwararrun masu walda ko masu aikin walda ne ke ajiye layin CRA. Multi{1}} ana yawan amfani da abin rufe fuska saboda za'a iya narkar da Layer na farko da karfen tushe. Karɓar ƙarshe ya kamata a dogara ne akan saman da aka gama bayan mashin ɗin.

5. Tsabtace tsaka-tsaki da kulawar gani
Tsaftacewa tsakanin wucewa yana taimakawa wajen guje wa ɓacin rai, gurɓatawa, rashin haɗuwa, da lahani na sama. Wannan mataki ba aikin ado bane; sau da yawa yana yanke shawarar ko binciken PT daga baya zai wuce da tsabta.

6. Binciken PWHT lokacin da ake buƙata
Wasu kayan tushe ko ƙayyadaddun aikin ƙila suna buƙatar magani mai zafi bayan{0}. Ya kamata a sake duba PWHT kafin samarwa saboda yana iya shafar taurin, sarrafa girma, da shirin dubawa na ƙarshe.

7. Rough machining da final machining
Bayan an rufe walda, ana ƙera flange ɗin zuwa ƙyalli na ƙarshe, yana fuskantar, tsagi na RTJ, rami mai ruɗi, da girman hatimi. Wannan shine inda samar da rashin kulawa zai iya cire kayan CRA da yawa. Ya kamata a kiyaye mafi ƙarancin kauri da aka gama rufe bayan wannan matakin.

8. Binciken ƙarshe da bitar takarda
PT, PMI, taurin, ferrite, dubawa mai girma, da duban gama gari ana yin su bisa ga buƙatun aikin. Ya kamata a daidaita rahotanni tare da alamar flange, lambar zafi, da lissafin tattarawa kafin jigilar kaya.

Don ƙarin bayani na fasaha game da tsarin rufin walda a cikin bututu, flange da samfuran faranti, duba muwalda mai rufi jagora.

Don flanges mai rufin walda, dubawa dole ne ya tabbatar da abubuwa biyu: flange na tushe ya cika buƙatun inji da girma, kuma rufin CRA ya cika lalata{0}bukatun sabis. Idan kowane bangare yana da rauni, flange na iya gaza karɓar aikin.

PMI bayan machiningyana da mahimmanci musamman. Idan PMI kawai aka yi kafin yin aikin ƙarshe, maiyuwa ba zai wakilci cikakken saman da zai tuntuɓar matsakaicin tsari ba. Don sabis ɗin mai ɗanɗano ko chloride{2}, aikin injin CRA na ƙarshe shine yanki mafi mahimmanci.

Don jigilar kayayyaki zuwa fitarwa, daidaita daftarin aiki wani ɓangare ne na sarrafa inganci. Lambar zafi, takardar shaidar kayan tushe, gami mai rufi, rahoton PMI, rahoton PT, lissafin tattarawa, da alamar flange yakamata su haɗa a sarari. Wannan yana rage haɗarin samun jinkirin dubawa sakamakon ɓacewar bayanai ko rashin daidaituwa.

Ana amfani da flanges mai rufin walda inda jikin flange ke buƙatar daidaitaccen ƙarfin matsi, amma ruwan - fuskar sadarwar dole ne ya yi tsayayya da lalata daga iskar gas mai tsami, chloride{1}} ruwa mai ɗaukar ruwa, ruwan teku, kafofin watsa labarai na acidic ko ruwayen tsari. Ba kamar na al'ada bawalda a kan flangewanda aka zaɓa musamman don haɗin bututu da ajin matsin lamba, flange mai rufi dole ne kuma ya sarrafa saman CRA wanda aka fallasa ga matsakaici.

• Tsarin samar da iskar gas mai tsami da tsarin tarawa

A cikin H₂S -mai ƙunshe da sabis, jikin flange na iya buƙatar ƙarfe na carbon ko ƙaramin ƙarfin ƙarfe, yayin da farfajiyar da aka jika tana buƙatar kariya ta CRA. Alloy 625 mai rufi yawanci ana yin bita don irin wannan sabis ɗin. Ikon taurin, yanayin HAZ, da buƙatun NACE MR0175 / ISO 15156 yakamata a bincika kafin samarwa.

• Ruwan ruwa allura da samar da ruwa layukan

Ruwan teku da ruwan da aka samar na iya ƙunsar chlorides, narkar da iskar gas, yashi, sikeli da sauran direbobin lalata. Bore mai rufi, daɗaɗɗen fuska da jujjuyawar wuyan wuya yana taimakawa rage haɗarin fallasa ƙarfen carbon da aka fallasa a wurin ma'aunin ruwa{1}}.

• Abubuwan mu'amalar bakin teku da na karkashin teku

Ayyukan kan teku galibi suna buƙatar tsauraran bincike da takaddun bayanai. Rukunin RTJ, fuskokin gasket, haɗin kai da yawa, hanyoyin haɗin bawul da ƙaƙƙarfan haɗin spool na iya buƙatar PMI, PT, gwajin tauri, gwajin ferrite, dubawa mai girma da maki na uku{1}.

• Layukan sarrafa matatun mai da petrochemical

Kafofin watsa labarai na sarrafa acidic, chloride{0}mai ɗauke da ruwaye, magudanan zafi masu zafi da gaurayawan yanayin lalata na iya buƙatar kariya ta CRA akan saman da aka jika. Weld overlay yana ba da damar aikin yin amfani da daidaitaccen matsi{3}}mai ɗaukar jikin flange yayin inganta juriyar lalata inda matsakaicin ke tuntuɓar ɓangaren.

• Tufafin da aka rufe, CRA{0}} bututu mai layi da haɗin kai da yawa

Ana amfani da flanges mai rufi galibi tare da bututu mai rufi, CRA{0} bututu mai layi, bututu mai rufi, bawuloli, spools da manifolds. Yankin mai rufi ya kamata ya daidaita tare da abin da aka haɗa don lalata{2} hanyar juriya ta ci gaba da kasancewa.

Karfe Octalyana goyan bayan wannan tsari daga bita na kayan aiki zuwa sakin kaya. Muna taimakawa daidaita matakin flange na tushe, alloy mai rufi, ƙãre kauri mai rufi, nau'in fuskantar, buƙatun tsagi na RTJ, da ikon dubawa kafin fara samarwa, don haka flange ɗin da aka isar ya fi sauƙi don tabbatarwa yayin karɓar dubawa.

Amfaninmu ba kawai kewayon wadata ba ne, ammaaikin daidaitawa: ƙirƙira flange sourcing, CRA mai rufi iko, karshe machining, PMI / PT / hardness dubawa, na uku{0}} goyon bayan dubawa jam'iyya, da fitarwa daftarin aiki za a iya sarrafa a daya wadata sarkar. Wannan yana rage haɗarin kayan da ba a daidaita su ba, ƙayyadaddun iyakokin da ba a sani ba, rahotannin da suka ɓace, ko rufewa{2}} lalacewar fuska kafin jigilar kaya.

Don odar fitarwa, Octal Karfe kuma yana mai da hankali ga ɗaukar kaya don kayan aikin injin, tsagi na RTJ, fuskoki masu tasowa, ramukan ƙwanƙwasa, da alamun flange, yana taimakawa flange ya isa tare da yanayin samfurin da fakitin daftarin aiki shirye don nazarin aikin.

Tuntuɓi yanzu

FAQ

 

01. Menene ya kamata a ƙayyade lokacin yin odar walƙiya mai rufi flanges?

Ya kamata masu siye su ƙayyade nau'in flange, girman, ajin matsa lamba, nau'in fuskantar, kayan tushe, gami mai rufi, yanki mai rufi, da ƙaramar kauri mai rufi bayan yin injin. Don sabis mai mahimmanci, PMI, PT, hardness, ferrite test, WPS/PQR, da - buƙatun dubawa na ɓangare na uku kuma yakamata a jera su a cikin tsarin siye.

02.Wanne yanki ne na walƙiya mai rufi flange bukatar CRA mai rufi?

Wuraren da aka lulluɓe gama gari sune guntun ƙasa, fuska mai ɗagawa, tsagi na RTJ, canjin wuyansa, fuskar ciki mai makafi, da sauran jikakkun saman da aka nuna akan zane. Ya kamata a yi alama a fili a fili yankin mai rufi saboda duk wani bututun carbon da aka fallasa a cikin hanyar kwarara na iya zama haɗarin lalata.

03.Me yasa ake amfani da Inconel 625 don walƙiya mai rufi?

Inconel 625 / Alloy 625 yawanci ana zaɓa don iskar gas mai tsami, allurar ruwan teku, samar da ruwa, bututun teku, da sabis na ɗaukar chloride{2}. Don karɓa, ya kamata a tabbatar da saman saman da aka yi amfani da shi ta ƙarshe ta hanyar PMI ko bincikar sinadarai, saboda dilution daga ƙarfen tushe na iya shafar sinadarai na saman.

04.What ne na hali gama mai rufi kauri ga weld mai rufi flanges?

Yawancin ayyuka suna ƙayyadadden ƙayyadaddun ƙaƙƙarfan kauri mai rufi na CRA, sau da yawa a kusa3.0 mm bayan kammala machining, amma ainihin ƙimar dole ne ta bi zane ko ƙayyadaddun aikin. Muhimmin batu shine tabbatar da sauran kauri mai rufi a saman da aka gama jika, ba kawai kamar yadda aka yi wa ajiya ba.

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