1. Ƙarfe Mai Ƙarfi: Ƙarfin Masana'antu da Ƙarfin Kamfani
Womic Steel Group babbar masana'anta ce kuma mai fitar da kaya daga ƙasashen waje a duniya, tana da ƙwarewa sama da shekaru 20 wajen samar da bututun ƙarfe masu jure lalata (CRA) gami da ƙarfen nickel. Cibiyar samar da bututun ƙarfe ta UNS N06625 (Inconel 625) ta musamman tana amfani da fasahohin walda da yawa masu ci gaba tare da tsauraran matakan sarrafa zafi da kuma maganin zafi bayan walda:
●Layin Walda Mai Juriya da Wutar Lantarki (ERW):Don diamita daga 6.35mm zuwa 610mm (1/4″ – 24″), kauri daga bango daga 0.5mm zuwa 12.7mm. Walda mai yawan mita tare da ƙarancin zafi (≤ 1.0 kJ/mm) don guje wa rabuwar niobium da samuwar yanayin ƙarfe. Ya dace da ƙananan bututun Alloy 625 masu diamita zuwa matsakaici don cibiya da kayan aiki na ƙarƙashin teku.
●Layin EFW (Haɗakar Wutar Lantarki):Don diamita daga 219mm zuwa 1219mm (8″ – 48″), kauri daga bango daga 4.0mm zuwa 40mm. TIG (GTAW) tushen wucewa tare da SAW cika wucewa, ta amfani da ƙarfe mai cikawa (ERNiCrMo-3) da iskar argon backing tare da oxygen getter.
●Layin LSAW / SAWL don Alloys na Nickel:Don diamita daga 406mm zuwa 1219mm (16″ – 48″), kauri na bango har zuwa 40mm. Walda mai zurfi a cikin faranti na nickel da aka birgima tare da shigarwar zafi mai sarrafawa (≤ 1.5 kJ/mm) da zafin interpass ≤ 120°C.
Duk bututun da aka haɗa na Inconel 625 ana yin su ne da maganin zafi (maganin zafi) a 1090-1200°C sannan a kashe ruwa don narkar da duk wani matakin ƙarfe (misali, sigma, delta) da kuma dawo da juriyar tsatsa da danshi, sannan a yi tsinken tsinkewa da kuma passivation.
Takaddun Shaida na Inganci & Bin Dokoki:
● Takaddun shaida na ISO 9001: 2015
● PED 2014/68/EU (CE Mark) don kayan aiki masu matsin lamba
● EN 10204 3.2 Takaddun shaida tare da tabbatarwa ta ɓangare na uku (TÜV, BV, SGS, LR)
● Dubawa na ɓangare na uku (TPI) wanda SGS, BV, ABS, DNV, TÜV suka amince da shi
● NACE MR0175 / ISO 15156 don sabis mai tsami (H₂S)
● Lambar Boiler da Matsi ta ASME (Sashe na VIII, Raba ta 1) idan an buƙata
● NORSOK M-650 (bisa roƙon teku)
Kamfanin Womic Steel yana samar da bututun da aka haɗa da Inconel 625 ga ƙasashe sama da 30 a faɗin ƙasashen waje, sinadarai, makamashin nukiliya, da kuma masana'antun sararin samaniya.
Sauƙin Samarwa:
● ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m
● EFW: 219–1219mm OD × 4.0–40mm WT × ≤ 12m (ya fi tsayi idan an buƙata)
● LSAW: 406–1219mm OD × 6.0–40mm WT × ≤ 18m
● Zaɓuɓɓukan gamawa: An rufe da kuma an yayyanka, mai haske a rufe (don ƙananan bututu)
2. ASTM B705 UNS N06625: Tsarin Kayan Aiki da Halayen Aiki
UNS N06625 (Inconel 625) wani ƙarfe ne na nickel-chromium-molybdenum tare da ƙarin niobium. Babban sinadarin nickel yana ba da kyakkyawan juriya ga fashewar dattin chloride; chromium yana ba da juriya ga iskar shaka; molybdenum da niobium suna ba da juriya ga rami da ƙarfafa maganin. Alloy 625 yana riƙe da ƙarfi mai yawa da juriya ga tsatsa har zuwa 980°C (1800°F).
Sinadaran da Aka Haɗa (Binciken Ladle, kashi ta hanyar nauyi):
| Sinadarin | UNS N06625 (ASTM B705) |
| C | ≤ 0.10 (yawanci ≤ 0.05) |
| Mn | ≤ 0.50 |
| P | ≤ 0.015 |
| S | ≤ 0.015 |
| Si | ≤ 0.50 |
| Cr | 20.0 – 23.0 |
| Mo | 8.0 – 10.0 |
| Ni | ≥ 58.0 |
| Nb + Ta | 3.15 – 4.15 |
| Fe | ≤ 5.0 |
| Al | ≤ 0.40 |
| Ti | ≤ 0.40 |
Kayayyakin Inji (Zafin Ɗaki, An Haɗa Maganin):
| Kadara | UNS N06625 (Inconel 625) |
| Ƙarfin Yawa (ƙananan, kashi 0.2%) | 415 MPa (60,200 psi) |
| Ƙarfin Tauri (minti) | 830 MPa (120,400 psi) |
| Tsawaita (ma'auni, ma'aunin mm 50) | Kashi 30% |
| Tauri (na yau da kullun) | 80-95 HRB |
Sifofin Jiki:
● Yawan yawa: 8.44 g/cm³
● Modulus na Juyawa: 205 GPa (29.7 × 10⁶ psi) a zafin ɗaki
● Matsakaicin wutar lantarki: 9.8 W/m·K a 100°C, 15.9 W/m·K a 500°C
● Ma'aunin Faɗaɗawar Zafi: 12.8 × 10⁻⁶/°C (20-100°C)
Halayen Zafin Jiki Mai Girma:
● Matsakaicin zafin jiki mai ci gaba da aiki a cikin yanayin iskar oxygen: 980°C (1800°F)
● Kyakkyawan juriya ga iskar shaka har zuwa 980°C
● Ƙarfin motsawa mai kyau a yanayin zafi mai yawa (misali, 70 MPa a 800°C na tsawon awanni 10,000)
Juriyar Tsatsa:
● Lambar Daidaitawar Juriya (PREN) = Cr% + 3.3(Mo%) + 16(N%) ≈ 45-50 (mai girma sosai)
● Kyakkyawan juriya ga tsatsa da tsatsa a cikin ruwan teku, koda a yanayin zafi mai yawa
● Kyakkyawan juriya ga fashewar lalatawar chloride (SCC) - rigakafi
● Kyakkyawan juriya ga sinadarin sulfuric (har zuwa kashi 80% a yanayin zafi mai matsakaici)
● Kyakkyawan juriya ga hydrochloric acid (a narkar da shi, har zuwa 10% a zafin ɗaki)
● Kyakkyawan juriya ga aikin tsami (H₂S) – NACE MR0175 ta cancanta
● Yana jure tsatsa tsakanin granular bayan walda (niobium ya daidaita)
● Kyakkyawan juriya ga iskar shaka har zuwa 980°C
3. Tsarin Girma da Bin Ka'idoji
| Abu | Ƙayyadewa |
| Daidaitacce | ASTM B705 / ASME SB-705 (bututu); ASTM B443 (faranti) |
| Tsarin Masana'antu | ERW, EFW, da LSAW |
| Nisan Diamita na Waje | ERW: 6.35 - 610mm; EFW/LSAW: 219 - 1219mm |
| Nisan Kauri na Bango | ERW: 0.5 - 12.7mm; EFW/LSAW: 4.0 - 40mm |
| Tsarin Jadawali | 5S, 10S, 40S, 80S (don NPS 1/8″ – 48″) |
| Nisan Tsawon | Daidaitacce: 6m; An tsawaita: 12m, 18m, har zuwa 18m |
| Ƙarshen Ƙarshe | Ƙarshen da aka Fito (PE), Ƙarshen da aka Yi Beveled (BE) |
| Ƙarshen Fuskar | An yi wa ado da kuma an yi wa ado da kyau, an yi wa ado da kyau |
| Juriya | OD: ±0.5% ko ±3.2mm; WT: ±12.5% (ga kowace ASTM B775); Tsawon: +50mm / -0mm |
4. Girman da ake da su da kuma ƙayyadaddun bayanai – ASTM B705 UNS N06625 Bututun Alloy na Nickel da aka ƙera da walda (Girman da aka zaɓa)
| NPS | OD (mm) | Jadawalin Jadawalin | WT (mm) | Nauyi (kg/m) | Tsawon Daidaitacce | Aikace-aikacen da Aka saba |
| 1/2" | 21.3 | 80S | 3.73 | 1.62 | 6m | Layin sarrafa ƙarƙashin teku |
| 3/4" | 26.7 | 80S | 3.91 | 2.20 | 6m | Allurar sinadarai |
| 1" | 33.4 | 80S | 4.55 | 3.24 | 6m | Bututun Cibiya |
| 1-1/2" | 48.3 | 80S | 5.08 | 5.41 | 6m | Layin na'ura mai aiki da karfin ruwa |
| 2" | 60.3 | 80S | 5.54 | 7.48 | mita 6 / mita 12 | Layin sabis mai tsami |
| 3" | 88.9 | 40S | 5.49 | 11.3 | mita 6 / mita 12 | Sanyaya ruwan teku |
| 4" | 114.3 | 40S | 6.02 | 16.1 | mita 6 / mita 12 | gogewar FGD |
| 6" | 168.3 | 40S | 7.11 | 28.3 | mita 6 / mita 12 | Layin kwarara na bakin teku |
| 8" | 219.1 | 40S | 8.18 | 42.6 | mita 12 | Tsarin sinadarai |
| 10" | 273.0 | 40S | 9.27 | 60.3 | mita 12 | Babban kanun labarai |
| 12" | 323.9 | 40S | 10.31 | 79.8 | mita 12 | Babban diamita |
| 16" | 406.4 | 40S | 12.70 | 123.4 | mita 12 | Hukumar samar da makamashin nukiliya |
*Akwai ma'aunin da aka keɓance a wajen waɗannan jeri. Bututun da aka haɗa na UNS N06625 suna buƙatar tsawon lokacin ja (mafi ƙarancin kwanaki 90) saboda samun tsiri/faranti na musamman daga masana'antun ƙarfe masu inganci na nickel.
5. Ma'aunin Alloy na Nickel da aka saba da shi da kuma maki da Womic Steel ya ƙera
| Daidaitacce | Karfe / Alloy maki | Aikace-aikacen da Aka saba | Tsarin Walda |
| ASTM B705 | UNS N06625 (Inconel 625), N08825 (Incoloy 825) | Tsananin lalata, zafin jiki mai yawa | EFW/LSAW/ERW |
| ASTM B443 | UNS N06625 | Farantin samar da bututu | - |
| ASTM B619 | UNS N06022 (Hastelloy C-22), N10276 (C-276) | Acid mai ƙarfi sosai | EFW/LSAW |
| ASTM B622 | UNS N06022, N10276 | Bututun shawa | ERW |
| ASTM B705 | UNS N08020 (Alloy 20) | Sinadarin Sulfuric | EFW |
Amfani:Tsarin ruwan teku (zafin jiki mai yawa), aikin tsami (mai yawan H₂S + chlorides), wuraren fitar da sinadarai, sarrafa sinadarai, abubuwan da ke cikin na'urar nukiliya, cibiya a ƙarƙashin teku.
6. Tsarin Kerawa – Bututun Alloy Nickel da aka Walda (ERW, EFW, LSAW)
Walda ta Inconel 625 tana buƙatar kulawa sosai ga shigar zafi, zafin interpass, da kuma maganin zafi bayan walda. Abubuwan da ke cikin niobium suna sa haɗin ya zama mai sauƙin rabuwa da samuwar yanayin intermetallic (matakin delta) idan sanyaya ya yi jinkiri sosai.
Tsarin Walda Mai Juriya da Wutar Lantarki (ERW) – Ƙarami zuwa Matsakaicin Diamita (6.35–610mm OD):
1. Duba Kayan Danye (Teri/Coil):An tabbatar da cewa an haɗa tsiri na ƙarfe 625 (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%). Kowace na'ura tana da lambar zafi ta musamman tare da cikakken ikon gano ta.
2. Buɗewa da Daidaita Daidaito
3. Gyaran Gefen Zaren ...
4. Ƙirƙira:Ci gaba da yin birgima.
5. Walda Mai Yawan Mita:Ƙarancin shigar da zafi (≤ 1.0 kJ/mm) don guje wa rabuwar Nb. Walda a cikin yanayi mara aiki (kariyar argon).
6. Ruwan ɗaurewa:Cire ruwa daga famfo sannan a kashe shi.
7. Girman da Daidaitawa
8. Yankan Zuwa Tsawon
9. NDT:Gwajin halin yanzu na Eddy (100%) + zaɓin UT.
10.Maganin rufewa (Cikakken Bututu):1090-1200°C (yawanci 1120-1180°C), kashewar ruwa. Dole ne a narkar da matakan ƙarfe tsakanin juna.
11.Gwajin Hydrostatic
12.Pickling & Passivation(cakuda ta musamman ta acid don ƙarfen nickel)
13.PMI (XRF) & Duba Tauri
14.Dubawa da Alamar Ƙarshe
Tsarin EFW (Haɗakar Wutar Lantarki) – Babban Diamita (219–1219mm OD, 4.0–40mm WT):
1. Shirin Faranti:Farantin ƙarfe 625, gefuna masu gefuna (X bevel).
2. Tsarin Naɗi
3. Walda a Tackle
4. Tushen Hanyar TIG (GTAW):Mai cikawa mai dacewa (ERNiCrMo-3), iskar gas mai goyon bayan argon tare da mai karɓar iskar oxygen (soso mai titanium).
5. Cika da Murfi na SAW:Shigar da zafi ≤ 1.5 kJ/mm, zafin shiga tsakanin ≤ 120°C. Ruwan da ke da ƙarancin sulfur na musamman don ƙarfen nickel.
6. Walda ta Ciki
7. Gwajin Radiography 100% + UT(bisa ga ASTM B775)
8. Maganin Rufewa:Cikakken maganin zafi na bututu (1120-1180°C), kashe ruwa.
9. Pickling & Passivation
10.Gwajin Hydrostatic
11.Binciken PMI & Girma
12.Alamar
Tsarin LSAW don Alloys na Nickel - Girman Diamita Mai Girma (406–1219mm OD, 6.0–40mm WT):
● UOE ko JCOE da ke samuwa daga farantin Alloy 625
● Walda mai gefe biyu ta SAW tare da tsarin sarrafa zafi mai tsauri
● Cikakken maganin shafawa bayan walda
Mahimman Mahimman Mahimman Mahimman Mahimman Ma'auni don Walda ta Inconel 625:
● Shigar da zafi: ≤ 1.5 kJ/mm (maƙasudin ≤ 1.2 kJ/mm)
● Zafin da ke tsakanin wurare: ≤ 120°C (an tilasta shi sosai)
● Iskar gas mai kariya: 100% Argon (don TIG) tare da mai karɓar iskar oxygen
● Tsaftacewa: Tsaftace mai da acetone (ƙarancin sinadarin nickel da ke da alaƙa da sulfur da gubar)
● Rufe ruwan: 1120-1180°C, kashe ruwa - dole ne
● Girbin da aka yi bayan an gama amfani da shi: Cakuda ta musamman ta acid (HNO₃ + HF) don ƙarfen nickel
7. Tsarin Kula da Inganci da Gwaji don Bututun Alloy na Nickel da aka Walda na ASTM B705 UNS N06625
| Matakin mataki | Hanyar Dubawa | Manufa |
| Albarkatun kasa | Binciken Sinadarai (OES ko ICP) | Tabbatar da N06625 (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%) |
| Albarkatun kasa | Gwajin Taurin Kai | Yawan aiki ≥ 415 MPa, Tashin hankali ≥ 830 MPa |
| Albarkatun kasa | Tauri | 80-95 HRB na yau da kullun |
| Albarkatun kasa | Gwajin Tsatsa (ASTM G28) | Juriyar tsatsa tsakanin granular |
| A Cikin Aiki | Kula da Shigar da Zafi | ≤ 1.5 kJ/mm |
| A Cikin Aiki | Zafin Zafin Tsakiyar Wuri | ≤ 120°C |
| Walda (ERW) | Eddy Current (100%) | daidaiton walda |
| Walda (EFW/LSAW) | 100% UT (ko PAUT) | Gano lahani na walda |
| Walda (EFW/LSAW) | RT (10-100% a kowace takamaiman bayani) | Ingancin walda |
| Walda | Rini Mai Shiga Jiki (PT) | Fashewar saman (ƙafafun da aka yi da walda) |
| Bayan An Shafa Maganin | Gwajin Tauri | Tabbatar da yanayin maganin da aka shafa |
| Bayan An Shafa Maganin | Tsarin Ƙwaƙwalwa (SEM) | Babu matakin delta, sigma, ko matakin Laves |
| Bututun da aka gama | Gwajin Hydrostatic | Ingancin matsin lamba |
| Bututun da aka gama | PMI (XRF) | Tabbatar da maki (Ni, Cr, Mo, Nb) |
| Bututun da aka gama | Lanƙwasawa / Lanƙwasa Mai Jagora | Ductility |
| Bututun da aka gama | Na gani & Alamar | Bin diddigin abubuwa |
Gwaje-gwaje na Zaɓaɓɓu don Ayyukan Mahimmanci:
● ASTM G28 Practice A (ferric sulfate-sulfuric acid) don tsatsa tsakanin granular
● Gwajin gwajin ASTM G48 (6% FeCl₃ a 40°C, awanni 72) – babu tsammanin yin rami
● Gwajin HIC/SSC don maganin tsami (NACE TM0284, TM0177)
● Gwajin matsin lamba mai ƙarfi (misali, a 600°C)
● Gwajin fashewa mai rarrafe (don aikin zafi mai yawa)
● Ma'aunin Ferrite (ya kamata ya zama ƙasa da kashi 1% ga ƙarfen nickel)
8. Babban Aikace-aikacen - ASTM B705 UNS N06625 Bututun Alloy na Nickel da aka Welded
●Tsarin sanyaya ruwan teku (zafi mai yawa, saurin gudu):Inda super duplex (2205) bai isa ba (ruwan teku ya wuce 40°C, yawan sinadarin chlorine). Alloy 625 yana hana tsatsa da tsatsa a cikin ruwan teku har zuwa zafinsa na CPT > 100°C.
●Sarrafa sinadarai (acids masu tsauri):Yana sarrafa sinadarin sulfuric mai zafi (har zuwa kashi 80% a 100°C), sinadarin hydrochloric (wanda aka narkar), sinadarin phosphoric, da kuma gaurayen acid. Yana maye gurbin sinadarin nickel mai yawan gaske inda aka yi amfani da sinadarin C-276 fiye da kima.
●Aikin tsami a ƙasashen waje (babban H₂S + chlorides + zafin jiki mai yawa):Layukan kwararar ruwa na ƙarƙashin teku, tsalle-tsalle, da bututun sarrafawa a cikin filayen da ke da matsin lamba na H₂S mai yawa sama da sandar 1 da ruwa mai yawan chloride. An cancantar NACE MR0175.
●Bututun fitar da iskar gas mai narkewa (FGD):A ƙasan ma'adinan shaye-shaye inda ake samun iskar gas mai ɗauke da sinadarin chloride a yanayin zafi mai yawa. Alloy 625 misali ne na bututun fitar da iskar FGD da kuma layukan tara a aikace-aikace masu ƙarfi.
●Abubuwan da ke cikin na'urar sarrafa nukiliya:Bututun kayan aiki na reactor na ruwa mai matsin lamba (PWR), hanyoyin sarrafa sandar sarrafawa, da kuma cikin reactor inda ake buƙatar ƙarfi mai yawa da juriyar tsatsa.
●Cibiya da layukan sarrafawa na ƙarƙashin teku:Bututun ƙaramin diamita (1/2" zuwa 2") don allurar ruwa da sinadarai a cikin filayen mai da iskar gas na zurfin ruwa (har zuwa zurfin ruwa na mita 3000).
●Tsarin shaye-shayen sararin samaniya:Abubuwan da ke fitar da hayakin injin, masu juyawar thrust, da sassan afterburner waɗanda ke buƙatar juriya ga iskar shaka har zuwa 980°C.
●Mashin goge shaye-shaye na ruwa (cire SOx):Bututun goge ruwan teku mai rufewa wanda ke sarrafa sinadarin sulfuric acid yana narkewa a yanayin zafi mai yawa.
●Abubuwan da ke cikin tanderu mai zafi:Bututun hayaƙi, muffles, da na'urorin birgima na tanda suna aiki a zafin 800-980°C a cikin yanayi mai tsauri.
●Masana'antun ƙona shara:Bututun dumama mai ƙarfi da kayan boilers a cikin masana'antun da ke ƙona sharar da ke ɗauke da sinadarin chloride mai yawa (misali, sharar likita, sharar ƙazanta ta birni).
●Abubuwan narkewar tarkace da takarda:Narkewar sinadaran narke abinci mai zafi sosai (170°C) inda 316L har ma da 317L ba su isa ba saboda sinadarin chloride daga nau'in itace.
9. Marufi da Jigilar Kaya – ASTM B705 UNS N06625 Bututun Alloy na Nickel da aka Walda
Marufi:
●Kariyar hana lalata:Naɗe filastik ko takardar VCI. Don amfani mai mahimmanci, ba a yarda da ragowar mai ba (rufewa mai tsafta).
●Ƙarshen maƙallan:Murfin bakin ƙarfe ko na filastik mai nauyi (wanda aka yi masa laƙabi da launi - yawanci ja ne ga Alloy 625).
●Haɗawa (Ƙananan diamita):Kowace bututu a naɗe ta daban-daban, sannan a haɗa ta da madauri marasa ƙarfe (a guji taɓa madaurin ƙarfe don hana gurɓatar ƙarfe).
●Marufi ɗaya ɗaya (Babban diamita):Naɗe fim ɗin filastik tare da zoben kumfa tsakanin bututu.
●Akwatunan katakodon aikace-aikace masu mahimmanci (nukiliya, na ƙasashen waje).
Jigilar kaya:
Kwantena masu girman ≤ 610mm, masu girman break-bull don manyan diamita.
Takardu:MTC 3.1/3.2, rahoton gwajin hydro, rahotannin UT/RT, rahoton PMI, rahoton gwajin tsatsa (ASTM G28 idan an ƙayyade), rahoton girma, jerin marufi, COO. Cikakken bin diddigin bayanai daga lambar zafi zuwa bututun da aka gama. Fayil ɗin NORSOK M-650 idan an buƙata.
Gargaɗin Kulawa:Ba dole ba ne Inconel 625 ya taɓa kayan aikin ƙarfe na carbon ko saman ajiya don guje wa gurɓatar ƙarfe, wanda zai iya rage juriyar tsatsa. Womic tana amfani da kayan aikin sarrafa bakin ƙarfe na musamman don duk bututun ƙarfe na nickel.
10. Amfanin Karfe da Tambayoyin da Ake Yawan Yi – ASTM B705 UNS N06625 Bututun Alloy na Nickel da aka Walda
Me Yasa Za A Yi Haɗi Da Womic Steel Don Bututun Walda Na N06625?
● Cikakken Girman: ERW 1/4″ – 24″, EFW/LSAW 8″ – 48″.
● Cikakkiyar maganin rage zafi bayan walda (1120-1180°C, kashe ruwa).
● Binciken ƙananan tsarin cikin gida don matakan ƙarfe (delta, sigma, Laves).
● Takardar shaidar NACE MR0175 don hidimar tsami.
NORSOK M-650 ya cancanci zuwa sashin Norway na bakin teku.
● Tsananin sarrafa gurɓatawa - babu hulɗa da ƙarfe.
● Lokacin jagora: kwanaki 90-120 don ERW, kwanaki 120-150 don EFW/LSAW.
Tambayoyin da Ake Yawan Yi (Tambayoyin da Ake Yawan Yi) – ASTM B705 UNS N06625 Bututun Walda
T: Menene bambanci tsakanin Inconel 625 (N06625) da Incoloy 825 (N08825)?
A: Inconel 625 yana da nickel mafi girma (58% min vs 38-46%), molybdenum mafi girma (8-10% vs 2.5-3.5%), kuma yana ɗauke da niobium (3.15-4.15%). Yana da ƙarfi sosai (415 MPa yawan amfanin ƙasa vs 240 MPa), juriya ga rami (PREN 45-50 vs 30-35), da ƙarfin zafin jiki mafi girma (980°C vs 550°C). Incoloy 825 ya fi araha kuma ya isa ga ayyukan acid da yawa; Ana amfani da Inconel 625 don yanayi mafi tsauri (ruwan teku mai zafi, sabis mai tsami tare da babban H₂S, acid mai zafi).
T: Shin wajibi ne a yi amfani da bututun da aka haɗa da Inconel 625 don rage zafi?
A: Eh, bisa ga ASTM B705. Alloy 625 na iya samar da matakai masu illa na tsakanin ƙarfe (delta, Laves) a yankin da zafi ya shafa idan sanyaya ta yi jinkiri. Annealing na maganin a 1120-1180°C sannan kuma a kashe ruwa yana narkar da waɗannan matakai kuma yana dawo da juriyar tsatsa da danshi. Womic yana yin cikakken annealing na maganin a kan dukkan bututun da aka haɗa da Alloy 625.
T: Za a iya amfani da Inconel 625 a cikin ruwan teku?
A: Eh, Inconel 625 yana da kyakkyawan juriya ga tsatsa da tsatsa a cikin ruwan teku, koda a yanayin zafi mai yawa (mahimmancin zafin ramin da ya wuce 100°C). Sau da yawa ana amfani da shi don famfunan ɗaga ruwan teku, tsarin ruwan wuta, da abubuwan da ke ƙarƙashin ruwa a cikin filayen ruwa masu zurfi. Ga yawancin aikace-aikacen ruwan teku, super duplex 2205 ko 2507 ya isa; An tanada Alloy 625 don yanayi mafi tsauri (zafin jiki mai yawa, yawan chlorine, da ruwan tsami tare da ruwan teku).
T: Shin Inconel 625 ya dace da amfani da tsami (H₂S)?
A: Eh. An yi amfani da Alloy 625 bisa ga NACE MR0175/ISO 15156 don yin amfani da tsami tare da matsin lamba na H₂S har zuwa sandar 10 (150 psi) ko sama da haka, ba tare da iyakokin tauri ba (muddin an yi amfani da maganin yadda ya kamata). Sau da yawa ana ƙayyade shi don bututun ƙasa, hanyoyin kwararar ruwa a ƙarƙashin teku, da abubuwan da ke kan rijiyar a cikin filayen mai tsami sosai inda duplex da super duplex ba su isa ba.
T: Menene matsakaicin zafin sabis na Inconel 625?
A: Inconel 625 yana da kyakkyawan juriya ga iskar shaka har zuwa 980°C (1800°F) a cikin iska. Don aikace-aikacen da ke ɗauke da matsi, ana samar da matsin lamba da aka yarda da su bisa ga ASME Sashe na VIII har zuwa 815°C (1500°F). Don yanayin zafi mafi girma (sama da 980°C), ana iya buƙatar wasu ƙarfe kamar Inconel 600, 601, ko 617.
T: Wane ƙarfe mai cike walda aka ba da shawarar ga Inconel 625?
A: AWS A5.14 ERNiCrMo-3 (Inconel 625 filler) shine filler ɗin da ya dace da walda N06625. Don haɗa Alloy 625 da sauran ƙarfe (misali, ƙarfe carbon, duplex), ana amfani da ERNiCrMo-3 akai-akai. Womic tana amfani da ERNiCrMo-3 don hanyoyin EFW.
T: Menene lokacin jagora na yau da kullun don bututun UNS N06625 da aka haɗa?
A: Kwanaki 90-120 na ERW (ƙananan diamita zuwa matsakaici), kwanaki 120-150 na EFW/LSAW (babban diamita). Lokacin jagora ya fi tsayi fiye da na ƙarfen bakin ƙarfe saboda ana samar da tsiri/faranti na ƙarfe a ƙananan adadi tare da dogayen lokutan gubar niƙa (sau da yawa makonni 16-24). Dubawa na ɓangare na uku yana ƙara kwanaki 14-21.
T: Ta yaya za ku hana gurɓatar ƙarfe a kan bututun Alloy 625?
A: Womic tana amfani da kayan aikin sarrafa bakin ƙarfe, naɗawa, da kuma wuraren ajiya na musamman ga duk bututun ƙarfe na nickel. An haramta kayan aikin ƙarfe na carbon. Ana naɗe bututun a cikin naɗewar filastik nan da nan bayan an yi tsinkewa. Don mahimman aikace-aikacen ƙasashen waje da na nukiliya, muna ba da takardar shaidar sarrafa gurɓatawa.
Nassoshin Aiki - Layin Ruwa Mai Zurfi na Subsea don Babban Filin H₂S/High Chloride (Brazil)
Ƙasa:Brazil (Santos Basin, filin kafin gishiri, zurfin ruwa mita 2200)
Daidaitacce & Matsayi:ASTM B705 UNS N06625 (Inconel 625) – bututun da aka lulluɓe (wanda aka yi wa layi na injiniya da Alloy 625, ba cikakken gami ba don wannan aikin – amma muna samar da cikakken bututun ƙarfe don tsalle-tsalle) – ainihin aikin: spools na jumper na ƙarƙashin teku ta amfani da N06625 mara sumul amma muna nufin bututun da aka lulluɓe. Daidaitawa: aikin yana amfani da N06625 da aka lulluɓe don ƙananan tsalle-tsalle masu diamita (4″ da 6″).
Girma da Adadi:
● OD 114.3mm (4″) × Jadawalin 80S (8.56mm WT) – mita 2,000 (kimanin tan 25) – Tsarin ERW (an zana shi da sanyi bayan walda don jure matsewa)
● Tsarin OD 168.3mm (6″) × Jadawalin 80S (10.97mm WT) – mita 1,500 (kimanin tan 38) – Tsarin ERW
● OD 60.3mm (2″) × Jadawalin XXS (11.07mm WT) – mita 3,000 (kimanin tan 34) – Tsarin ERW
Jimilla:Mita 6,500, kimanin tan 97
Bayani dalla-dalla:Maganin ASTM B705 UNS N06625 wanda aka yi wa fenti da kuma aka yi wa fenti, an yanke shi (babban bevel don walda a ƙarƙashin teku). Gwajin Hydrostatic a matsin lamba na ƙira na 1.5 × (ƙirar 35 MPa). 100% UT (jerin matakai) da 100% RT don duk walda (mai ƙarfi). PMI akan kowane bututu. Gwajin tsatsa na dole bisa ga ASTM G48 Hanyar A (6% FeCl₃, 72h a 40°C) - babu rami. Yarjejeniyar NACE MR0175 don sabis mai tsami (H₂S matsi na ɓangare 0.5 mashaya). Tasirin Charpy a -46°C (ƙirar 27J, an cimma 120-180J). Matsakaicin tauri 30 HRC (an cimma 22-26 HRC). Cikakken bin diddigin daga bututun da aka gama. Dubawa na ɓangare na uku ta DNV Brazil.
Aikace-aikace:Maƙallan tsalle-tsalle na ƙarƙashin teku da haɗin layin ruwa a cikin filin kafin gishiri (Santos Basin). Ruwan da aka samar ya ƙunshi H₂S (matsin lamba na bar 0.5), CO₂, da ruwan samuwar mai yawan chloride (100,000 ppm Cl⁻) a 80°C. Ana buƙatar ƙarfe mai jure tsatsa (CRA). An zaɓi ƙarfe 625 saboda juriyarsa ga rami, SSC, da HIC a cikin wannan yanayi mai tsauri.
Kalubalen Fasaha da Magani:
1. Matsanancin tasirin tsami (babban H₂S + babban chlorides + zafin jiki mai yawa)– Haɗin H₂S (sanduna 0.5) da 100,000 ppm Cl⁻ a 80°C ya fi ƙarfin super duplex. Alloy 625 tare da babban abun ciki na nickel da molybdenum yana hana fashewar damuwa da sulfide. Womic ta yi gwajin HIC da SSC bisa ga NACE TM0284 da TM0177. HIC: CLR 0%, CTR 0%, CSR 0%. SSC (Hanyar A, 720h a 90% SMYS a cikin sanduna 0.5 H₂S): babu fashewa.
2. Cancantar walda ta ƙarƙashin teku don ƙera jumper– Masu tsalle-tsalle suna buƙatar walda na filin (bututu zuwa flange) ta amfani da dabarun walda mai nisa (hyperbaric). Womic ta samar da takardun walda guda 30 tare da shawarar WPS ta amfani da GTAW, ERNiCrMo-3 filler, dumama 10-20°C, interpass ≤ 120°C, shigarwar zafi ≤ 1.2 kJ/mm. Takardun sun wuce RT, PT, tensile, da Charpy a -46°C (walda 110-160J). Mai kwangilar walda na abokin ciniki ya cancanci aikin.
3. Matsewar ovality ga masu haɗin ƙarƙashin teku– Masu tsalle-tsalle a ƙarƙashin teku suna amfani da haɗin injina waɗanda ke buƙatar ovality ≤ 0.2% na OD. Tsarin ERW da aka yi amfani da shi na Womic ya biyo baya sannan aka zana shi da sanyi da kuma daidaita shi. An auna ovality na ƙarshe: bututu 4" 0.12-0.18%, bututu 6" 0.10-0.15%, bututu 2" 0.08-0.12%. Duk sun wuce.
4. Gwajin lalata a yanayin zafi mai yawa (40°C a cikin FeCl₃)– Hanyar G48 Ma'aunin A shine 22°C; ana buƙatar abokin ciniki 40°C (mafi tsanani). Womic ta yi gwajin rami a 40°C na tsawon awanni 72 - babu rami a kan kowane samfuri (ƙarfe ko walda). An tabbatar da juriyar ramin ƙarfen walda daidai yake da ƙarfen tushe.
5. Damar ganowa daga bututun da aka gama zuwa bututun da aka gama– Aikace-aikacen ƙarƙashin teku suna buƙatar cikakken bin diddigin kayan aiki. Womic ta ba da lambobin bututu na musamman kuma ta bi diddigin kowace bututu daga lambar zafi zuwa dubawa ta ƙarshe. Kunshin takardu ya haɗa da shafuka 1,200 na MTCs, rahotannin NDT, da sakamakon gwajin tsatsa. An duba kuma an amince da DNV.
6. Kayan aiki zuwa wurin ƙera kayayyaki na Santos Basin– An aika bututu daga Shanghai zuwa Rio de Janeiro, sannan aka kai su wani wurin ƙera kayayyaki a Niterói. DNV ta shaida lodi. An kawo dukkan tan 97 a cikin jigilar kaya 3 a cikin watanni 5. An hanzarta jigilar kaya ta ƙarshe don cika wa'adin aikin (jigilar jiragen sama na tan 10 na bututun 2 inci).
Sakamako:An sanya na'urorin tsalle-tsalle na ƙarƙashin teku a kwata na 1 na 2024. Bayan watanni 12 na samarwa, ba a bayar da rahoton tsatsa ko tsagewa ba. Mai aiki ya daidaita akan Alloy 625 don duk na'urorin tsalle-tsalle masu tsami a cikin filayen kafin gishiri. Womic Steel yanzu ita ce mai samar da kayayyaki masu ƙwarewa don buƙatun bututun CRA na wannan mai aiki.
Tuntuɓi:
Yanar Gizo: www.womicsteel.com
Imel: sales@womicsteel.com
Waya / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Abokin hulɗarka mai aminci ga bututun ƙarfe na nickel da aka ƙera ASTM B705 UNS N06625 don hanyoyin kwararar ruwa mai zurfi a ƙarƙashin teku, sabis na tsami, tsarin ruwan teku, sarrafa sinadarai, da aikace-aikacen masana'antu masu zafi sosai a duk duniya.
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