1. Birta Womic: Awoodaha Wax Soo Saarka & Xoogga Shirkadda
Womic Steel Group waa shirkad soo saare heer sare ah iyo dhoofiye caalami ah oo leh in ka badan 20 sano oo khibrad u leh soo saarista tuubooyinka birta u adkaysta daxalka (CRA) oo ay ku jiraan birta nikkel, birta aan la taaban karin ee duplex, iyo titanium. Xaruntayada wax soo saarka tuubooyinka birta nikkel ee gaarka ah waxay isticmaashaa teknoolojiyado badan oo alxan oo horumarsan iyadoo si adag loo xakameynayo gelinta kulaylka iyo daaweynta kulaylka ka dib alxanka si loo ilaaliyo iska caabbinta daxalka birta iyo sifooyinka farsamada:
●Khadka Alxanka Korontada ee ERW (Alxanka iska caabbinta Korontada):Dhexroorka laga bilaabo 6.35mm ilaa 610mm (1/4″ – 24″), dhumucda derbiga waa 0.5mm ilaa 12.7mm. Alxanka soo noqnoqda oo leh kuleyl hooseeya si looga fogaado kala soocidda. Ku habboon tuubooyinka N08825 ee dhexroor yar ilaa dhexdhexaad ah ee loogu talagalay khadadka qalabka, duritaanka kiimikada, iyo tuubooyinka habka.
●Khadka EFW (Alxanka Isku-dhafka Korontada):Dhexroorka laga bilaabo 219mm ilaa 1219mm (8″ – 48″), dhumucda derbiga waa 4.0mm ilaa 50mm. TIG (GTAW) oo leh marinnada buuxinta SAW, iyadoo la isticmaalayo birta buuxinta ee isku midka ah (ERNiCrMo-3 ama ERNiCrMo-10) iyo gaashaanka gaaska aan firfircoonayn.
●Khadka LSAW / SAWL ee Nikkel Alloys:Dhexroorka laga bilaabo 406mm ilaa 1524mm (16″ – 60″), dhumucda derbiga ilaa 50mm. Alxanka qaansada ee ku dhex jira taarikada dahaarka nikkel ee la duubay oo leh kuleyl la xakameeyey.
Dhammaan tuubooyinka alxanka ah ee nikkel-ka ah waxaa lagu sameeyaa daadinta xalka (kuleylka) heerkul ah 980-1040°C, ka dibna biyaha la damiyo ama qaboojinta hawada oo degdeg ah si loo soo celiyo iska caabbinta daxalka loona milo wixii kaarboon ama bir ah ee soo daata, ka dibna la miiray oo la nuugay.
Shahaadooyinka Tayada & U Hoggaansanaanta Sharciyeynta:
● ISO 9001: 2015 Shahaado haysta
● PED 2014/68/EU (Calaamaynta CE) ee qalabka cadaadiska
● EN 10204 3.2 Shahaado oo leh xaqiijin dhinac saddexaad ah (TÜV, BV, SGS, LR)
● Kormeerka Dhinac Saddexaad (TPI) oo ay ansixisay SGS, BV, ABS, DNV, TÜV
● NACE MR0175 / ISO 15156 oo loogu talagalay adeegga dhanaan (H₂S)
● Xeerka Maraakiibta Biyaha iyo Cadaadiska ee ASME (Qaybta VIII, Qaybta 1) marka la codsado
Womic Steel waxay siisaa tuubooyin bir ah oo lagu dahaadhay nickel in ka badan 30 waddan oo ku kala yaal warshadaha kiimikada, wax soo saarka bacriminta, nukliyeerka, iyo kuwa badda.
Dabacsanaanta Wax-soo-saarka:
● ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m
● EFW: 219–1219mm OD × 4.0–50mm WT × ≤ 12m (ka dheer marka la codsado)
● LSAW: 406–1524mm OD × 6.0–50mm WT × ≤ 18m
● Xulashooyinka dhammaystirka: La dubay oo la miiray, oo dhalaalaya oo la dubay (tuubo yar)
2. ASTM B705 UNS N08825: Qaab-dhismeedka Agabka & Astaamaha Waxqabadka
UNS N08825 (Incoloy 825) waa isku-darka nikkel-bir-chromium oo lagu daray molybdenum, naxaas, iyo titanium. Waxaa loogu talagalay inay bixiso iska caabin aad u fiican oo ku wajahan asiidhyada yaraynta iyo oksaydhka, iyo sidoo kale dildilaaca daxalka ee koloriin-ku keeno (SCC) iyo godadka. Ku darista titanium-ku waxay xasilisaa isku-darka ka dhanka ah weerarka intergranular ka dib alxanka (oo la mid ah birta aan miridhku degganayn ee deggan). Tirada nikkel-ka ee sare (38-46%) waxay bixisaa iska caabin aad u fiican oo ku wajahan koloriin-ka SCC, halka chromium iyo molybdenum ay bixiyaan iska caabin godadka. Naxaasku wuxuu ku daraa iska caabinta asiidhyada sulfuric iyo fosfoorik.
Halabuurka Kiimikada (Falanqaynta Ladle, boqolkiiba cuf ahaan):
| Walax | UNS N08825 (ASTM B705) |
| C | ≤ 0.050 (caadi ahaan ≤ 0.025) |
| Mn | ≤ 1.00 |
| P | ≤ 0.030 |
| S | ≤ 0.030 |
| Si | ≤ 0.50 |
| Cr | 19.5 – 23.5 |
| Ni | 38.0 – 46.0 |
| Mo | 2.5 – 3.5 |
| Cu | 1.5 – 3.0 |
| Ti | 0.6 – 1.2 |
| Al | ≤ 0.20 |
| Fe | Dheelitirnaan |
Sifooyinka Farsamada (Heerkulka Qolka, Xalka la isku daray):
| Hantida | UNS N08825 |
| Xoogga Wax Soo Saarka (ugu yaraan, 0.2% ka-dhimis) | 240 MPa (35,000 psi) |
| Xoogga Tijaabada (daqiiqad) | 550 MPa (80,000 psi) |
| Dheereynta (ugu yaraan, cabbirka 50mm) | 30% |
| Adkaanta (caadiga ah) | 75-85 HRB |
Sifooyinka Jirka:
● Cufnaanta: 8.14 g/cm³
● Modulus of Relasticity: 195 GPa (28.3 × 10⁶ psi)
● Qaboojinta Kulaylka: 11.1 W/m·K 100°C
● Isku-darka Ballaarinta Kulaylka: 14.0 × 10⁻⁶/°C (20-100°C)
Iska caabbinta Daxalka:
● Iska caabin aad u fiican oo ku wajahan aashitada sulfuric-ka iyadoo la adeegsanayo tiro badan oo ah fiirsasho (ilaa 96% heerkul dhexdhexaad ah)
● Iska caabin aad u wanaagsan oo ku wajahan fosfoorik aashitada (habka qoyan) oo ay ku jiraan koloriin iyo fluoride
● Iska caabin wanaagsan oo ku wajahan asiidhka nitric iyo asiidhyada dabiiciga ah
● Iska caabin aad u fiican oo ku wajahan dildilaaca daxalka koloriinta (SCC)
● Iska caabin wanaagsan oo ku saabsan daxalka iyo daloolka meelaha ay ku badan yihiin chloride-ka (PREN ≈ 30-35)
● U adkaysta daxalka isku-dhafka ah ka dib alxanka (titanium waa la dejiyay)
● Ku habboon adeeg dhanaan (NACE MR0175) ilaa cadaadis qayb ahaan sare oo H₂S ah
Xadka Daxalka (Qiyaas ahaan):
● Aashitada Sulfuric (H₂SO₄): waxaa la isticmaali karaa ilaa 96% diirimaad heerkulka qolka; waxaa lagu xaddidaa karkarinta
● Aashitada Fosfooriga (H₃PO₄): aad u fiican ilaa 80% heerkul ah 100°C
● Aashitada Haydaroklorik (HCl): waxay ku xaddidan tahay inay milmaan (< 5%) heerkulka qolka
● Aashitada Nitric (HNO₃): waxay ku fiican tahay ilaa 40% heerkul dhexdhexaad ah
3. U hoggaansanaanta Heerka Cabbirka iyo Heerarka
| Shay | Faahfaahinta |
| Heerka Caadiga ah | ASTM B705 / ASME SB-705 (tuubo); ASTM B709 (tuubo) |
| Habraacyada Wax Soo Saarka | ERW, EFW, LSAW |
| Kala duwanaanshaha Dhexroorka Dibadda | ERW: 6.35 - 610mm; EFW/LSAW: 219 - 1524mm |
| Kala duwanaanshaha Dhumucda Darbiga | ERW: 0.5 - 12.7mm; EFW/LSAW: 4.0 - 50mm |
| Jadwalka Kala Duwan | 5S, 10S, 40S, 80S (loogu talagalay NPS 1/8″ – 48″) |
| Kala Duwanaanta Dhererka | Heerka: 6m; La dheereeyay: 12m, 18m, ilaa 18m (ka dheer marka la codsado) |
| Dhammaadka Dhammaadka | Dhamaadka Caadiga ah (PE), Dhamaadka La Jaray (BE) |
| Dhammaadka Dusha Sare | La shiiday & la shiiday, la shiiday oo dhalaalaya |
| Dulqaadka | OD: ±0.5% ama ±3.2mm; WT: ±12.5% (sida ASTM B775 oo kale); Dhererka: +50mm / -0mm |
4. Cabbirrada iyo Tilmaamaha La Heli Karo – ASTM B705 UNS N08825 Tuubada Nikkel-ka ee Alxanka leh (Cabbirrada Caadiga ah ee La Xushay)
| NPS | OD (mm) | Jadwalka | WT (mm) | Miisaanka (kg/m) | Dhererka Caadiga ah | Codsiga Caadiga ah |
| 1/2" | 21.3 | 40S | 2.77 | 1.27 | 6m | Duritaan kiimiko ah |
| 3/4" | 26.7 | 40S | 2.87 | 1.69 | 6m | Khadadka qalabka |
| 1" | 33.4 | 40S | 3.38 | 2.50 | 6m | Khadadka quudinta aashitada |
| 1-1/2" | 48.3 | 40S | 3.68 | 4.05 | 6m | Tuubooyinka habka |
| 2" | 60.3 | 40S | 3.91 | 5.44 | 6m / 12m | Aashitada Sulfuric |
| 3" | 88.9 | 40S | 5.49 | 11.3 | 6m / 12m | Aashitada Fosfooriga |
| 4" | 114.3 | 40S | 6.02 | 16.1 | 6m / 12m | Khadadka uumi-baxa |
| 6" | 168.3 | 40S | 7.11 | 28.3 | 6m / 12m | Barkadda FGD |
| 8" | 219.1 | 40S | 8.18 | 42.6 | 12m | Khadka dhanaan ee xeebta |
| 10″ | 273.0 | 40S | 9.27 | 60.3 | 12m | Dib-u-soo-nooleynta aashitada |
| 12" | 323.9 | 40S | 10.31 | 79.8 | 12m | Madaxa ugu weyn ee aashitada |
| 16" | 406.4 | 40S | 12.70 | 123.4 | 12m | Dib-u-habaynta nukliyeerka |
| 20″ | 508.0 | 40S | 15.09 | 183.5 | 12m | Dhexroor weyn |
| 24" | 609.6 | 40S | 17.48 | 255.5 | 12m | Codsiga takhasuska |
* Cabbirrada gaarka ah ee ka baxsan heerarkan ayaa la heli karaa. Tuubooyinka la alxamay ee N08825 waxay u baahan yihiin waqti dheer oo rasaas ah (ugu yaraan 60 maalmood) sababtoo ah soo saarista xariijinta/saxanka gaarka ah.*
5. Heerarka iyo Darajooyinka Nikkel-ka Caadiga ah ee ay soo saartay Womic Steel
| Heerka Caadiga ah | Darajooyinka Birta / Daawaha | Codsiga Caadiga ah | Habka Alxanka |
| ASTM B705 | UNS N08825 (Incoloy 825) | Sulfuric, fosfoorasik aashito | EFW/LSAW/ERW |
| ASTM B709 | UNS N08825 | Tuubbo, beddelaha kulaylka | ERW |
| ASTM B619 | UNS N06022 (Hastelloy C-22), N10276 (C-276) | Aad u daxal badan | EFW/LSAW |
| ASTM B622 | UNS N06022, N10276 | Tuubbo | ERW |
| ASTM B464 | UNS N08020 (20 Daawaha) | Aashitada Sulfuric | EFW |
| ASTM B729 | UNS N08020 | Tuubbo | ERW |
Isticmaalka:Warshad aashito ah (H₂SO₄, H₃PO₄, HNO₃), dib-u-habaynta nukliyeerka, adeegga dhanaan ee badda, FGD, booyadaha kiimikada.
6. Habka Wax Soo Saarka - Tuubada Nikkel Alloy ee Alxanka leh (ERW, EFW, LSAW)
Alxanka dahaarka nikkel wuxuu u baahan yahay xakameyn taxaddar leh oo ku saabsan gelinta kulaylka iyo daaweynta kulaylka ka dib alxanka si loo ilaaliyo iska caabbinta daxalka. Alloy 825 waa mid xasiloon oo titanium ah, laakiin gelinta kulaylka xad-dhaafka ah ayaa wali sababi karta dareen-celin ama kala-soocid.
Habka ERW (Alxanka iska caabbinta korontada) - Dhexroor yar ilaa dhexdhexaad ah (6.35–610mm OD):
●Kormeerka Walxaha Ceeriin (Xariijin/Galgariir):Xariijimaha dahaarka nikkel-ka ayaa la xaqiijiyay inay ka kooban tahay N08825 (Ni 38-46%, Cr 19.5-23.5%, Mo 2.5-3.5%, Cu 1.5-3.0%, Ti 0.6-1.2%). Gariir kastaa wuxuu leeyahay lambar kulayl oo gaar ah oo leh raad-raac buuxa.
●Furitaanka iyo Simanka
●Jarista Cidhifka Xarigga
●Samaynta:Samaynta duub joogto ah.
●Alxanka Soo Noqnoqda Sare:Kuleyl hooseeya (≤ 1.2 kJ/mm) si looga hortago kala soocidda. Alxanka jawiga aan firfircoonayn (gardarrada argon) si looga fogaado oksaydheynta.
●Xididdada tolida:Daadinta kicinta oo ay ku xigto qaboojin degdeg ah.
●Cabbirka iyo Toosinta
●Goynta Dhererka
●NDT:Tijaabada hadda jirta ee Eddy (100%) + UT ikhtiyaari ah.
●Qaboojinta Xalka (Tuubo Buuxa):980-1040°C, daminta biyaha (ama qaboojinta hawada oo degdeg ah). Waa waajib in dib loo soo celiyo iska caabbinta miridhka.
●Imtixaanka Hydrostatic-ka
●Qajaar iyo Neefsasho(iyadoo la isticmaalayo isku darka aashitada gaarka ah ee loogu talagalay dahaarka nikkelka)
●Hubinta PMI (XRF) iyo Ferrite (ma jiraan ferrite ku jira daawaha nikkel)
●Kormeerka Kama Dambeysta ah iyo Calaamadaynta
Habka EFW (Alxanka Isku-dhafka Korontada) - Dhexroorka Weyn (219–1219mm OD, 4.0–50mm WT):
●Diyaarinta Saxanka:Saxanka dahaarka nikkel, geesaha oo godan (X bevel).
●Samaynta Duubka
●Alxanka Tack
●Tigidhka Rootka ee TIG (GTAW):Birta buuxinta ee isku habboon (ERNiCrMo-3 ama ERNiCrMo-10), gaaska taageerada argon oo leh ogsijiin hela.
●Buuxinta iyo Kaarka SAW:Kuleyl hooseeya (≤ 1.5 kJ/mm), heerkulka dhex-dhexaadka ah ≤ 150°C. Dareeraha gaarka ah ee loogu talagalay dahaarka nikkel (surfur hooseeya).
●Alxanka Gudaha (dhexroorrada waaweyn)
●100% RT + UT(sida ku cad ASTM B775)
●Xalka qaboojinta:Daawaynta kulaylka tuubada oo dhammaystiran (980-1040°C), daminta biyaha.
●Qajaar iyo Neefsasho
●Imtixaanka Hydrostatic-ka
●Kormeerka PMI & Cabbirka
●Calaamadaynta
Habka LSAW ee loogu talagalay Nikkel Alloys - Dhexroor aad u Weyn (406–1524mm OD, 6.0–50mm WT):
● UOE ama JCOE oo ka samaysan saxanka daawaha nikkel
● Alxanka SAW ee laba-geesoodka ah oo leh kuleyl hooseeya
● Xalka oo dhan oo la buufiyo ka dib alxanka
Qodobbada Xakamaynta Muhiimka ah ee Alxanka N08825:
● Kuleylka la geliyo: ≤ 1.5 kJ/mm (bartilmaameed ≤ 1.2 kJ/mm)
● Heerkulka Interpass-ka: ≤ 150°C
● Gaaska gaashaanka: Argon (100%) oo loogu talagalay TIG; argon + helium oo loogu talagalay SAW
● Nadiifin: Saliidayn adag ka hor alxanka (daawaha nikkel-ka oo u nugul sulfur iyo rasaas)
● Daminta xalka: 980-1040°C, daminta biyaha - waa qasab.
● Birta alxanka kuma jirto ferrite (alxanka nikkel-ka ah ee daawadu waa mid gebi ahaanba austenitic ah)
7. Habraacyada Xakamaynta Tayada iyo Tijaabada ee Tuubada Nikkel-ka ee ASTM B705 UNS N08825 ee Alxanka leh
| Masraxa | Habka Kormeerka | Ujeeddo |
| Walxaha Ceeriin | Falanqaynta Kiimikada (OES ama ICP) | Xaqiiji xadka N08825 (Ni, Cr, Mo, Cu, Ti, Fe) |
| Walxaha Ceeriin | Tijaabada Tijaabada | Wax soo saar ≥ 240 MPa, Gariir ≥ 550 MPa |
| Walxaha Ceeriin | Adkaanta | 75-85 HRB caadiga ah |
| Walxaha Ceeriin | Tijaabada Daxalka (ASTM G28) | Iska caabbinta daxalka ee isku-dhafan (adeeg aashitada muhiimka ah) |
| Hawlgalka socda | Kormeerka Kuleylka gelinta | ≤ 1.5 kJ/mm |
| Hawlgalka socda | Heerkulka Dhexda | ≤ 150°C |
| Alxanka (ERW) | Eddy Current (100%) | Daacadnimada alxanka |
| Alxanka (EFW/LSAW) | 100% UT (ama PAUT) | Soo ogow cilladaha alxanka |
| Alxanka (EFW/LSAW) | RT (10-100% halkii qeexitaan) | Tayada alxanka |
| Alxanka | Rinjiga Rinjiga (PT) | Dildilaaca dusha sare |
| Ka dib marka la buufiyo xalka | Imtixaanka Adkaanta | Xaqiiji xaaladda la buufiyay ee xalka |
| Tuubbo Dhammaystiran | Imtixaanka Hydrostatic-ka | Daacadnimada cadaadiska |
| Tuubbo Dhammaystiran | PMI (XRF) | Xaqiiji darajada (Ni, Cr, Mo) |
| Tuubbo Dhammaystiran | Imtixaanka Daxalka (ASTM G28 Layliga A) | Iska caabbinta IGC (haddii la cayimay) |
| Tuubbo Dhammaystiran | Muuqaal & Calaamadayn | Raad-raac |
Tijaabooyinka Ikhtiyaarka ah ee Adeegga Muhiimka ah:
● ASTM G28 Practice A (50% H₂SO₄ – ferric sulfate) oo loogu talagalay iska caabbinta daxalka ee isku-dhafka ah
● Tijaabada godka ASTM G48 (oo ku jirta FeCl₃, 6% 40°C) si loo hubiyo iska caabbinta godka koloriinta
● Tijaabada HIC/SSC ee adeegga dhanaan (NACE TM0284, TM0177)
● Tijaabada heerkulka oo la riixo (tusaale ahaan, 300°C)
● Cabbirka Ferrite (waa inuu ahaadaa < 1% marka la eego birta nikkel-ka)
8. Codsiyada Aasaasiga ah - ASTM B705 UNS N08825 Tuubada Nikkel-ka ee la alxanka leh
●Dhirta aashitada sulfuric:Maareynta oleum-ka (H₂SO₄ + SO₃), aashitada xoogga badan (96-98%), aashitada khafiifka ah (5-10%), iyo tuubooyinka qaboojiyaha aashitada. Waxay beddeshaa birta aan miridhku lahayn ee si degdeg ah u mirdha.
●Soo saarista aashitada fosfooraska (habka qoyan):Uumi-bixiyayaasha, qaboojiyeyaasha iftiinka, iyo aashitada fosfoorik ee tuubooyinka ku shaqeysa oo leh chlorides iyo fluorides. Alloy 825 wuxuu iska caabiyaa xaaladaha oksaydhka iyo kuwa yareeya labadaba.
●Dib-u-habaynta shidaalka nukliyeerka:Maareynta shidaalka nukliyeerka ee la isticmaalay ee ku milmay aashitada nitric oo leh fluoride. N08825 wuxuu iska caabiyaa miridhka deegaankan aadka u daran (oo loo isticmaalo warshadaha Magnox iyo THORP).
●Adeegga dhanaan ee badda:Soo saarista saliidda iyo gaaska oo leh cadaadis qayb ahaan H₂S oo sarreeya (ilaa 10 bar) oo lagu daray koloriin sare iyo heerkul ilaa 200°C. NACE MR0175 ayaa u qalantay.
●Qaboojinta biyaha badda (heerkulka oo kor u kacay):Nidaamyada biyaha qaboojinta ee warshadaha sifeynta xeebaha iyo warshadaha korontada halkaas oo heerkulka biyaha badda uu ka badan yahay 45°C (halkaas oo 2205 iyo xitaa super duplex ay ku dhici karaan god). N08825 waxay iska caabisaa inay ku dhacdo god ilaa 80°C.
●Tuubooyinka ka baxa qiiqa ee ka saara sulfurization-ka gaaska qiiqa (FGD):Hoosta nuugayaasha halkaas oo gaasaska aashitada leh ee koloriin-ka qoyan ay ku jiraan. Alloy 825 waa mid caadi ah oo loogu talagalay tuubooyinka soo baxa iyo dahaarka is dul saaran.
●Haamaha kiimikada:Tuubooyinka xamuulka ee kiimikooyinka dagaalka badan oo ay ku jiraan aashitada sulfuric, fosfoorasikada, iyo aashitada dabiiciga ah. N08825 waxaa ansixiyay shirkadaha waaweyn ee maraakiibta kiimikada.
●Dhirta soo saarista aashitada iyo shiididda:Aashitada Hydrochloric (barxan) iyo khadadka isku dhafan ee lagu qaso aashitada si loogu sameeyo wax soo saarka birta aan miridhku lahayn.
●Daaweynta biyaha wasakhda ah:Qashinka warshadaha ee aadka u daxalaysan ee ka yimaada dhirta kiimikada (asiidhyo isku dhafan, biraha culus, koloriin).
9. Baakad & Rarista - ASTM B705 UNS N08825 Tuubada Nikkel-ka ee Alxanka leh
Baakadaha:
●Ilaalinta ka hortagga daxalka:Duub balaastig ah ama warqad VCI ah. Adeeg kiimiko ah, haraaga saliidda looma oggola (baakad nadiif ah).
●Daboolka ugu dambeeya:Koofiyado balaastig ah oo culus (midab leh - caadi ahaan oranji ah N08825).
●Xidhmo (Dhexdhexaad yar):Tuubo kasta si gaar ah ayaa loo duubay, ka dibna waxaa lagu xirayaa suuman aan bir ahayn (iska ilaali taabashada suumanka birta ah si looga hortago wasakhowga).
●Baakad shaqsiyeed (dhexroor weyn):Duub filim balaastig ah oo leh faraanti xumbo ah oo u dhexeeya tuubooyinka.
●Sanduuqyo alwaax ahcodsiyada muhiimka ah (nukliyeerka, daawooyinka).
Rarista:
● Weelal loogu talagalay ≤ 610mm, oo loogu talagalay dhexroorka waaweyn.
●Dukumentiyada:MTC 3.1/3.2 (EN 10204), warbixinta baaritaanka biyaha, warbixinnada UT/RT, warbixinta PMI, warbixinta tijaabada daxalka (ASTM G28 haddii la cayimay), warbixinta cabbirka, liiska baakadaha, COO. Raad-raac buuxa laga bilaabo lambarka kulaylka ilaa tuubada la dhammeeyey.
10. Faa'iidooyinka iyo Su'aalaha Badiya La Weydiiyo ee Birta Womic – ASTM B705 UNS N08825 Tuubada Nikkel-ka ee Alxanka leh
Maxaa Loola Shaqayn Karaa Womic Steel si Loogu Sameeyo Tuubada La Xidhay ee N08825?
● Cabbirka oo Dhameystiran: ERW 1/4″ – 24″, EFW/LSAW 8″ – 48″.
● Daadinta xalka oo dhammaystiran ka dib alxanka (980-1040°C, daminta biyaha).
● Tijaabada daxalka ee u dhexeeya granular-ka sida ku cad ASTM G28 ayaa la heli karaa (waa qasab adeegga aashitada).
● Shahaadada NACE MR0175 ee adeegga dhanaan.
● Xakamaynta tayada adag - ma jiro ferrite ku jira birta alxanka.
● Waqtiyada hogaaminta tartanka ee tuubooyinka daawaha nikkel: 60-75 maalmood ERW, 75-90 maalmood EFW.
Su'aalaha Badiya La Weydiiyo (Su'aalaha Badiya La Weydiiyo) - ASTM B705 UNS N08825 Tuubo Alxan leh
S: Waa maxay faraqa u dhexeeya Incoloy 825 (N08825) iyo Alloy 20 (N08020)?
A: Labadaba waxaa loo isticmaalaa adeegga aashitada sulfuric. Aashitada 20 (N08020) waxay leedahay nikkel hoose (32-38%) iyo chromium sare (19-21%) oo leh naxaas. N08825 waxay leedahay nikkel sare (38-46%) iyo molybdenum (2.5-3.5%) oo lagu daray xasilinta titanium. N08825 waxay leedahay iska caabin wanaagsan oo ku wajahan qodista iyo chloride SCC waxayna ku habboon tahay adeegga dhanaan (H₂S). Aashitada 20 waxay ka dhaqaale badan tahay aashitada fosfoorik iyo aashitada sulfuric khafiifka ah ee aan lahayn chlorides. N08825 waxaa badanaa lagu qeexaa xaalado aad u daran.
S: N08825 ma u adkaysataa aashitada sulfuric dhammaan heerarka?
A: Maya. N08825 waa mid aad u fiican oo loogu talagalay aashitada sulfuric ilaa qiyaastii 60% heerkulka ilaa 100°C, iyo xoogga u dhexeeya 85-96% heerkulka qolka. Heerka dhexe (60-85%) iyo heerkulka sare, heerarka daxalka ayaa noqon kara kuwo sarreeya. Heerkulka sare ee xoogga badan H₂SO₄ (> 90%, > 150°C), waxaa laga yaabaa in loo baahdo dahaar gaar ah sida Hastelloy C-276. Had iyo jeer la tasho jaantusyada daxalka si aad u hesho xaalado gaar ah.
S: Ma u baahan yahay N08825 daaweynta kulaylka ka dib alxanka ka dib?
A: Inta badan codsiyada, N08825 waxaa loo isticmaali karaa xaalad alxan leh sababtoo ah xasilinta titanium-ka waxay ka hortagtaa dareenka. Si kastaba ha ahaatee, ASTM B705 waxay u baahan tahay xal-qaboojin (daawaynta kulaylka) ee tuubooyinka alxanka si ay u buuxiyaan sifooyinka farsamada iyo iska caabbinta daxalka. Womic waxay qabataa xal-qaboojin dhammaan tuubooyinka alxanka. Alxanka goobta, looma baahna PWHT N08825.
S: Birta buuxinta alxanka noocee ah ayaa lagu talinayaa N08825?
A: AWS A5.14 ERNiCrMo-3 (Inconel 625) ama ERNiCrMo-10 (Inconel 622) ayaa si caadi ah loogu isticmaalaa alxanka N08825. Buuxiyaha isku midka ah wuxuu noqon doonaa ERNiCrMo-3. Womic waxay isticmaashaa ERNiCrMo-3 hababka EFW. Alxanka goobta, isla buuxinta ayaa lagu talinayaa.
S: Ma loo isticmaali karaa N08825 adeegga biyaha badda?
J: Haa. N08825 waxay leedahay iska caabin aad u fiican oo ku wajahan daxalka godadka iyo daloolada biyaha badda, xitaa heerkulka sare (ilaa 80°C). Badanaa waxaa loo doortaa nidaamyada qaboojinta biyaha badda ee warshadaha sifeynta iyo warshadaha korontada xeebaha halkaas oo super duplex (2205) ay ku dhici karto godka heerkulka sare. Si kastaba ha ahaatee, inta badan codsiyada biyaha badda, duplex ama super duplex waa ku filan tahay oo kharash badan. N08825 waxaa badanaa loo qoondeeyay nidaamyada biyaha badda oo leh kiimikooyin dheeraad ah oo daxal leh (tusaale ahaan, biyaha badda ee koloriin lagu daray, wasakheynta aashitada).
S: Ma N08825 ku habboon yahay adeeg dhanaan (H₂S)?
J: Haa. N08825 waxaa loo istaahilaa sida ku cad NACE MR0175/ISO 15156 adeeg dhanaan oo leh cadaadis qayb ah oo H₂S ah ilaa 1 bar (15 psi) iyo ka badan, iyadoo ku xiran xakamaynta adkaanta. Badanaa waxaa loo isticmaalaa tuubooyinka hoose, khadadka socodka, iyo dhuumaha habka ee meelaha saliidda dhanaan iyo gaaska halkaas oo 2205 duplex uusan ku filnayn sababtoo ah H₂S ama chlorides sare.
S: Waa maxay waqtiga caadiga ah ee hogaanka ee tuubooyinka alxanka ee UNS N08825?
A: 60-75 maalmood ERW (dhexroor yar ilaa dhexdhexaad ah), 75-90 maalmood EFW/LSAW (dhexroor weyn). Waqtiyada rasaastu way ka dheer yihiin biraha aan miridhku lahayn sababtoo ah xarigga/saxanka birta ah waxaa lagu soo saaraa tiro yar oo leh waqtiyo rasaasta warshadda oo dheer. Kormeerka dhinac saddexaad wuxuu ku darayaa 7-14 maalmood. Dalabyada degdega ah (45-60 maalmood) ayaa suurtogal noqon kara cabbirrada caadiga ah haddii agabka la kaydiyo.
S: Waa maxay heerkulka ugu badan ee hawlgalka N08825?
A: N08825 waxaa loo isticmaali karaa adeeg joogto ah ilaa 550°C (1020°F) deegaannada aan aashitada lahayn. Adeegga daxalka, heerkulka ugu badan waxaa xaddidaya daxalka. Aashitada sulfuric, adeeggu caadi ahaan wuxuu ku kooban yahay <100°C; aashitada fosfoorasikada ilaa <150°C. Adeegga oksaydhaynta heerkulka sare, waxaa lagu talinayaa daxalka chromium-ka sareeya (sida Alloy 600, 601, ama 625).
Tixraaca Mashruuca - Dib-u-kuleyliyaha Warshadda Sulfuric Acid ee Waqooyiga Ameerika iyo Beddelka Tuubooyinka
Dalka:Mareykanka (Louisiana, marinka kiimikada ee Xeebta Gacanka)
Heerka & Darajada:ASTM B705 UNS N08825 (Incoloy 825)
Cabbirka iyo Tirada:
● OD 219.1mm (8″) × Jadwalka 40S (8.18mm WT) – 600 mitir (qiyaastii 20 tan) – Habka EFW
● OD 168.3mm (6″) × Jadwalka 40S (7.11mm WT) – 400 mitir (qiyaastii 10 tan) – Habka EFW
● OD 88.9mm (3″) × Jadwalka 40S (5.49mm WT) – 800 mitir (qiyaastii 8 tan) – Habka ERW
● OD 60.3mm (2″) × Jadwalka 80S (5.54mm WT) – 1,000 mitir (qiyaastii 6 tan) – Habka ERW
Wadarta:2,800 mitir, qiyaastii 44 tan
Tilmaamaha:Xalka ASTM B705 UNS N08825 oo la daadiyay oo la miiray, darafyo godan. Tijaabada Hydrostatic. 100% UT ee tuubooyinka EFW, current eddy + UT ee ERW. PMI ee tuubo kasta. Tijaabada daxalka ee qasabka ah ee u dhexeeya granular sida ku xusan ASTM G28 Practice A (habka ferric sulfate-sulfuric acid) - heerka daxalka < 10 mpy (mil sannadkii). Tijaabada iska caabbinta Hydrofluoric acid (gaar ahaan macmiilka). Kormeerka dhinac saddexaad oo ay samaysay SGS USA.
Codsiga:Beddelidda tuubooyinka dib-u-booleynta aashitada iyo khadadka habka ee la xiriira warshad dib-u-cusboonaysiinta aashitada sulfuric. Warshadu waxay soo ceshataa aashitada sulfuric ee la isticmaalay ee ka timid cutubyada alkylation (warshadaynta) iyadoo la adeegsanayo kala-goynta kulaylka iyo dib-u-habaynta. Tuubooyinka waxay qabtaan aashitada sulfuric kulul (85-95% H₂SO₄) 150-200°C qaybta dib-u-boolaynta, iyo aashitada khafiifka ah (5-10% H₂SO₄) 80-100°C qaybta dab-damiska. Tuubooyinka hore ee Alloy 20 (N08020) way fashilmeen 4 sano ka dib sababtoo ah daxalka iyo dildilaaca u dhexeeya granular. N08825 waxaa loo xushay iska caabinta sare ee aashitada xooggan iyo tan khafiifka ah labadaba, iyo sidoo kale xasilinta titanium-ka.
Caqabadaha Farsamada iyo Xalalka:
●Aashitada sulfuric ee heerkulka sare leh (85-95%, 150-200°C)– Daawaha 20 wuxuu ku burburiyaa heer ka badan 50 mpy xaaladahan. N08825 oo leh xaalad daxalaysan oo xal ah iyo bir-sameyn habboon ayaa bixisay heer daxaleed < 5 mpy tijaabada ASTM G28 iyo xalka habka la mid ah ee macmiilka (85% H₂SO₄ heerkul ah 180°C, 336 saacadood). Womic waxay bixisay warbixinnada tijaabada warshadda iyo kuubannada tijaabada daxalka.
●Khatarta daxalka intergranular ka dib alxanka– In kasta oo N08825 uu yahay mid deggan, haddana kulaylka aan habboonayn inta lagu jiro wax soo saarka ayaa sababi kara roobabka chromium carbide ee xuduudaha hadhuudhka. Kuleylka alxanka ee la xakameeyey ee Womic wuxuu gaarayaa ≤ 1.2 kJ/mm wuxuuna sameeyay damin buuxda oo xal ah ka dib alxanka. Tijaabada ASTM G28 ee muunadaha alxanka waxay muujisay heerka daxalka 4-7 mpy (oo aad uga hooseeya xadka 10 mpy).
●Shahaadada nidaamka alxanka goobta– Kooxda dayactirka warshadda ayaa loo baahday inay sameeyaan dayactirka goobta. Womic waxay bixisay 20 kuuban oo alxan ah oo ah 6″ Jadwalka 40S oo leh WPS lagu taliyay: GTAW oo leh buuxinta ERNiCrMo-3, 100% taageerada argon, dhex-dhexaadka ≤ 150°C. Kuubannada ayaa ka gudbay tijaabada raajada, PT, iyo ASTM G28. Kooxda alxanka ee macmiilka ayaa shahaado siisay nidaamka.
●Xaqiijinta PMI - kala soocida N08825 iyo walxaha hoose– Khatarta goobta lagu qasi karo N08825 oo leh Alloy 825 (isku mid ah UNS) iyo Alloy 625 (hal-abuur kala duwan). Womic waxay XRF ku samaysay tuubo kasta waxayna mid walba ku calaamadisay calaamado midab leh (liin ah 825). Ma jirin wax isku dhac ah oo dhacay.
●Saadka inta lagu jiro qorshaha dib u soo celinta (4 toddobaad oo xidhitaan ah)– Tuubooyinka waxaa laga soo raray Shanghai ilaa New Orleans, ka dibna waxaa loo raray goobta Louisiana. Dhammaan 44 tan ayaa la keenay 10 maalmood ka hor inta aan la bilaabin soo celinta. Womic waxay bixisay shahaadooyin warshadeed oo shahaadaysan (EN 10204 Nooca 3.2) iyo warbixinno tijaabo ah oo daxalka ah kahor si loogu ansixiyo macaamiisha QA.
Natiijo:Warshadda dib-u-soo-noolaynta aashitada si guul leh ayaa dib loogu bilaabay ka dib markii la beddelay. Ka dib 12 bilood oo shaqo ah, kormeerka tuubooyinka N08825 ma muujin wax daxal ah oo la cabbiri karo, dildilaac la'aan, iyo weerar isku-dhafan. Macmiilku wuxuu qiyaasay in tuubooyinka cusubi ay socon doonaan 15+ sano (marka la barbar dhigo 4 sano oo Alloy 20 ah). Womic Steel ayaa lagu daray liiska agabka warshadda ee la ansixiyay si loogu beddelo adeegyada aashitada mustaqbalka.
La xiriir:
Mareegta: www.womicsteel.com
Iimayl: sales@womicsteel.com
Taleefan / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel - Lamaanahaaga lagu kalsoonaan karo ee ASTM B705 UNS N08825 tuubooyinka alxanka nikkel ee ASTM B705 UNS N08825 ee loogu talagalay dhirta aashitada sulfuric iyo fosforic, dib-u-habaynta nukliyeerka, adeegga dhanaan ee badda, iyo codsiyada biyaha badda ee heerkulka sare leh adduunka oo dhan.
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