1. Womic Steel: Ike Mmepụta na Ike Ụlọ Ọrụ
Womic Steel Group bụ ụlọ ọrụ mmepụta ihe na mbupụ ihe n'ụwa niile nke nwere ihe karịrị afọ 20 nke ahụmịhe n'ịmepụta paịpụ ndị na-eguzogide corrosion alloy (CRA) gụnyere nickel alloy, duplex steel stainless steel, na titanium. Ụlọ ọrụ mmepụta paịpụ nickel alloy pụrụ iche anyị na-eji ọtụtụ teknụzụ ịgbado ọkụ dị elu yana njikwa siri ike nke ntinye okpomọkụ na ọgwụgwọ okpomọkụ mgbe weld gasịrị iji nọgide na-enwe iguzogide corrosion na njirimara igwe nke alloy ahụ:
●ERW (Ịgbado Ọkụ Eletriki):Maka dayameta site na 6.35mm ruo 610mm (1/4″ – 24″), ọkpụrụkpụ mgbidi site na 0.5mm ruo 12.7mm. Ịgbado ọkụ ugboro ugboro dị elu yana obere ntinye okpomọkụ iji zere nkewa. Ọ dị mma maka obere ruo ọkara paịpụ N08825 maka ahịrị ngwaọrụ, ntinye kemịkalụ, na ọkpọkọ usoro.
●Ahịrị EFW (Ịgbado ọkụ eletrik):Maka dayameta site na 219mm ruo 1219mm (8″ – 48″), ọkpụrụkpụ mgbidi site na 4.0mm ruo 50mm. Mgbọrọgwụ TIG (GTAW) nwere SAW filling pass, site na iji ígwè filler dakọtara (ERNiCrMo-3 ma ọ bụ ERNiCrMo-10) na ihe mkpuchi gas na-adịghị arụ ọrụ.
●Ahịrị LSAW / SAWL maka Nickel Alloys:Maka dayameta site na 406mm ruo 1524mm (16″ – 60″), ọkpụrụkpụ mgbidi ruo 50mm. Njikọta arc nke efere nickel a kpụrụ akpụ nke nwere ntinye okpomọkụ a na-achịkwa.
A na-eme ka ọkpọkọ niile a na-eji nickel alloy eme ihe na-ekpo ọkụ (ọgwụgwọ okpomọkụ) na 980-1040°C, wee jiri mmiri mee ka ọ dị jụụ ma ọ bụ ikuku jụrụ oyi ngwa ngwa iji weghachite iguzogide nchara ma gbazee ihe ọ bụla na-akpata carbide ma ọ bụ ihe ndị na-eme ka ígwè dị n'etiti ya pụta, wee jiri pikọpta na passivation mee ya.
Asambodo Ogo na Nrubeisi Iwu:
● Asambodo ISO 9001: 2015
● PED 2014/68/EU (CE Mark) maka akụrụngwa nrụgide
● EN 10204 3.2 Asambodo nwere nkwenye nke ndị ọzọ (TÜV, BV, SGS, LR)
● Nnyocha nke Ndị Ọzọ (TPI) nke SGS, BV, ABS, DNV, TÜV kwadoro
● NACE MR0175 / ISO 15156 maka ọrụ mmiri ara ehi (H₂S)
● Koodu ụgbọ mmiri ASME na nke nrụgide (Nkebi nke VIII, Nkebi nke 1) ma ọ bụrụ na achọrọ ya
Womic Steel na-enye ọkpọkọ nickel alloy welded nye ihe karịrị mba 30 n'ofe nhazi kemịkalụ, mmepụta fatịlaịza, mmepụta nuklia, na ụlọ ọrụ ndị dị n'ụsọ oké osimiri.
Mgbanwe Mmepụta:
● ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m
● EFW: 219–1219mm OD × 4.0–50mm WT × ≤ 12m (ogologo oge karịa ma ọ bụrụ na a rịọ ya)
● LSAW: 406–1524mm OD × 6.0–50mm WT × ≤ 18m
● Nhọrọ imecha: A na-ete ya na nke a na-apịpịa, nke a na-egbuke egbuke (maka obere ọkpọkọ)
2. ASTM B705 UNS N08825: Ihe mejupụtara ihe na njirimara arụmọrụ
UNS N08825 (Incoloy 825) bụ ihe mgbakwunye nickel-iron-chromium nke nwere mgbakwunye molybdenum, ọla kọpa, na titanium. Emebere ya iji nye ezigbo iguzogide ma acid ndị na-ebelata ma na-eme ka oxidizing dị ike, yana mgbawa corrosion nke chloride kpatara (SCC) na olulu mmiri. Mgbakwunye titanium ahụ na-eme ka alloy ahụ sie ike megide mwakpo intergranular mgbe agbanyere ya (dị ka ígwè anaghị agba nchara kwụsiri ike). Oke nickel dị na ya (38-46%) na-enye ezigbo iguzogide chloride SCC, ebe chromium na molybdenum na-enye iguzogide pitting. Copper na-agbakwụnye iguzogide sulfuric na phosphoric acid.
Ihe mejupụtara kemịkalụ (Nyocha Ladle, pasent site na oke):
| Ihe | UNS N08825 (ASTM B705) |
| C | ≤ 0.050 (nke a na-ahụkarị ≤ 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 | Nhazi nguzozi |
Njirimara Mekaniki (Okpomọkụ Ụlọ, Ngwọta Ejiri Aka Mee):
| Akụ na ụba | UNS N08825 |
| Ike Mmepụta (nkezi, 0.2% nke mbelata) | 240 MPa (35,000 psi) |
| Ike nrụgide (nkeji) | 550 MPa (80,000 psi) |
| Ogologo (nkeji, nha 50mm) | Pasentị iri atọ |
| Isi ike (nkịtị) | 75-85 HRB |
Njirimara Anụ Ahụ:
● Njupụta: 8.14 g/cm³
● Modulu nke Mgbatị: 195 GPa (28.3 × 10⁶ psi)
● Ọkwa okpomọkụ: 11.1 W/m·K na 100°C
● Ọnụọgụ nke Mgbasawanye Okpomọkụ: 14.0 × 10⁻⁶/°C (20-100°C)
Nguzogide Nrụrụ:
● Nguzogide dị mma megide sulfuric acid n'ọtụtụ ebe dị iche iche (ruo 96% na okpomọkụ dị ala)
● Nguzogide pụrụ iche megide phosphoric acid (usoro mmiri mmiri) nke nwere chlorides na fluorides
● Ọ na-eguzogide nitric acid na organic acid nke ọma
● Nguzogide dị mma megide mgbawa nchara chloride (SCC)
● Ọ na-eguzogide ezigbo nkụchi na mmebi n'ebe a na-eme ka ọ ghara ịdị ọcha na gburugburu chloride (PREN ≈ 30-35)
● Na-eguzogide nchara dị n'etiti granular mgbe agwakọtachara ya (titanium kwụsiri ike)
● Ọ dị mma maka ọrụ utoojoo (NACE MR0175) ruo nrụgide akụkụ H₂S dị elu
Oke ire ere (ihe dịka ihe dị ka):
● Asịd Sulfuric (H₂SO₄): A na-eji ya eme ihe ruo 96% n'oge okpomọkụ ụlọ; a na-ebelata ya mgbe a na-esi mmiri ọkụ.
● Asịd phosphoric (H₃PO₄): dị mma ruo 80% na 100°C
● Asịd Hydrochloric (HCl): a na-ebelata ya ka ọ ghara ịgbaze (< 5%) n'ọnọdụ okpomọkụ ụlọ
● Nitric acid (HNO₃): dị mma ruo 40% na okpomọkụ dị mma
3. Nrubeisi na Nrubeisi nke Oke na Ụkpụrụ
| ihe | Nkọwapụta |
| Ọkọlọtọ | ASTM B705 / ASME SB-705 (paịpụ); ASTM B709 (tube) |
| Usoro Mmepụta | ERW, EFW, LSAW |
| Oke Dayameta Mpụta | ERW: 6.35 - 610mm; EFW/LSAW: 219 - 1524mm |
| Oke ọkpụrụkpụ mgbidi | ERW: 0.5 - 12.7mm; EFW/LSAW: 4.0 - 50mm |
| Oge Nhazi Oge | 5S, 10S, 40S, 80S (maka NPS 1/8″ – 48″) |
| Ogologo Ogologo | Ọkọlọtọ: 6m; agbatị: 12m, 18m, ruo 18m (ogologo oge karịa ma ọ bụrụ na achọrọ ya) |
| Ọgwụgwụ Ọgwụgwụ | Ọgwụgwụ Dị larịị (PE), Ọgwụgwụ Beveled (BE) |
| Mmecha Elu | A na-ete ya na a na-akpọ ya nkụ, a na-ete ya nke ọma |
| Ndochi | OD: ±0.5% ma ọ bụ ±3.2mm; WT: ±12.5% (kwa ASTM B775); Ogologo: +50mm / -0mm |
4. Nha na nkọwapụta dị - ASTM B705 UNS N08825 Pipe Alloy Nickel nke ejiri Welded (Nha ndị a họọrọ)
| NPS | OD (mm) | Usoro oge | WT (mm) | Ibu (kg/m) | Ogologo Ọkọlọtọ | Ngwa nkịtị |
| 1/2" | 21.3 | 40S | 2.77 | 1.27 | 6m | Ọgwụ kemịkalụ |
| 3/4" | 26.7 | 40S | 2.87 | 1.69 | 6m | Ahịrị ngwa egwu |
| 1" | 33.4 | 40S | 3.38 | 2.50 | 6m | Ahịrị nri acid |
| 1-1/2" | 48.3 | 40S | 3.68 | 4.05 | 6m | Nhazi paịpụ |
| 2" | 60.3 | 40S | 3.91 | 5.44 | 6m / 12m | Asịd sọlfọ |
| 3" | 88.9 | 40S | 5.49 | 11.3 | 6m / 12m | Asịd phosphoric |
| 4" | 114.3 | 40S | 6.02 | 16.1 | 6m / 12m | Ahịrị ndị na-ekupụ mmiri |
| 6" | 168.3 | 40S | 7.11 | 28.3 | 6m / 12m | Ọwa FGD |
| 8″ | 219.1 | 40S | 8.18 | 42.6 | 12m | Ahịrị utoojoo dị n'ụsọ oké osimiri |
| 10″ | 273.0 | 40S | 9.27 | 60.3 | 12m | Mmeghachi acid |
| 12" | 323.9 | 40S | 10.31 | 79.8 | 12m | Isi isi acid |
| 16" | 406.4 | 40S | 12.70 | 123.4 | 12m | Nhazigharị nuklia |
| 20″ | 508.0 | 40S | 15.09 | 183.5 | 12m | Dayameta buru ibu |
| 24" | 609.6 | 40S | 17.48 | 255.5 | 12m | Ngwa pụrụ iche |
*Nha pụrụ iche dị n'èzí oke ndị a. Paịpụ N08825 a na-agbakọta agwakọta chọrọ oge ndu dị ogologo (opekempe ụbọchị 60) n'ihi na ha nwere mpempe akwụkwọ/efere pụrụ iche.*
5. Ụkpụrụ na Ọkwa Nikel Alloy A Na-ahụkarị nke Womic Steel mepụtara
| Ọkọlọtọ | Akara ígwè / Alloy | Ngwa nkịtị | Usoro ịgbado ọkụ |
| ASTM B705 | UNS N08825 (Incoloy 825) | Asịd sọlfọ, phosphoric | EFW/LSAW/ERW |
| ASTM B709 | UNS N08825 | Tubọn, ihe mgbanwe okpomọkụ | ERW |
| ASTM B619 | UNS N06022 (Hastelloy C-22), N10276 (C-276) | Ọ na-emebi emebi nke ukwuu | EFW/LSAW |
| ASTM B622 | UNS N06022, N10276 | Tubing | ERW |
| ASTM B464 | UNS N08020 (Alloy 20) | Asịd sọlfọ | EFW |
| ASTM B729 | UNS N08020 | Tubing | ERW |
Ojiji:Osisi asịd (H₂SO₄, H₃PO₄, HNO₃), nhazigharị nuklia, ọrụ mmiri ara ehi dị n'ụsọ oké osimiri, FGD, tankị kemịkalụ.
6. Usoro Mmepụta – Pipe Alloy Nickel Alloy nke a na-agbakọta agbakọta (ERW, EFW, LSAW)
Njikọta nke nickel alloy chọrọ njikwa nke ọma nke ntinye okpomọkụ na ọgwụgwọ okpomọkụ mgbe njikọta ya gasịrị iji nọgide na-eguzogide nchara. Alloy 825 nwere titanium kwụsiri ike, mana oke okpomọkụ ka nwere ike ibute mmetụta ma ọ bụ nkewa.
Usoro ERW (Ịgbado ọkụ eletrik) - Obere ruo ọkara dayameta (6.35–610mm OD):
●Nnyocha Ihe Ndị A Na-anaghị Arụ Ọrụ (Mpempe Akwụkwọ/Kọnịlụ):Ejirila ígwè nickel alloy mee ihe mejupụtara N08825 (Ni 38-46%, Cr 19.5-23.5%, Mo 2.5-3.5%, Cu 1.5-3.0%, Ti 0.6-1.2%). Kọlụ ọ bụla nwere nọmba okpomọkụ pụrụ iche nke nwere ike ịchọta ya nke ọma.
●Ịkpọghe na Ịkwalite Ọkwa
●Ịkpụcha akụkụ ákwà mgbochi
●Ịkpụ:Mpịakọta na-aga n'ihu na-akpụ.
●Ịgbado ọkụ ugboro ugboro:Ntinye okpomọkụ dị ala (≤ 1.2 kJ/mm) iji gbochie nkewa. Ịgbado ọkụ n'ime ikuku na-adịghị arụ ọrụ (ihe nchebe argon) iji zere oxidation.
●Ịdọkọta ákwà:Mkpọchi induction na-esochi ya wee jụọ oyi ngwa ngwa.
●Nhazi na Nhazi
●Ịcha ruo n'ogologo
●NDT:Nnwale ugbu a nke Eddy (100%) + nhọrọ UT.
●Mkpọchi Ngwọta (Paịpụ zuru oke):980-1040°C, mmiri na-agbanyụ (ma ọ bụ ikuku oyi ngwa ngwa). Ọ dị mkpa ka e weghachi ike nchara.
●Nnwale Hydrostatic
●Ịhịa aka n'ahụ na ịta nri(na-eji ngwakọta acid pụrụ iche maka alloys nickel)
●PMI (XRF) na Ferrite check (enweghị ferrite na nickel alloy)
●Nnyocha na Akara Ikpeazụ
Usoro EFW (Ịgbado ọkụ eletrik) - Dayameta buru ibu (219–1219mm OD, 4.0–50mm WT):
●Nkwadebe efere:Efere nickel alloy, ọnụ ya dị beveled (bevel X).
●Ịkpụ Mpịakọta
●Ịkwado Tak
●Mgbọrọgwụ TIG (GTAW):Igwe ihe eji emeju ihe (ERNiCrMo-3 ma ọ bụ ERNiCrMo-10), gas azụ argon nwere ihe na-enweta oxygen.
●Ihe ndị e ji ejupụta na okpu SAW mee:Ntinye okpomọkụ dị ala (≤ 1.5 kJ/mm), okpomọkụ interpass ≤ 150°C. Mgbawa pụrụ iche maka alloys nickel (ala sọlfọ dị ala).
●Njikọta dị n'ime (maka dayameta buru ibu)
●100% RT + UT(kwa ASTM B775)
●Ngwọta Mbelata:Ọgwụgwọ okpomọkụ zuru oke nke ọkpọkọ (980-1040°C), ihe na-eme ka mmiri kwụsị.
●Ịhịa aka n'ahụ na ịta nri
●Nnwale Hydrostatic
●Nnyocha PMI na Akụkụ
●Akara
Usoro LSAW maka Nickel Alloys - Dayameta buru ibu nke ukwuu (406–1524mm OD, 6.0–50mm WT):
● UOE ma ọ bụ JCOE na-akpụ site na efere nickel alloy
● Ịgbado ọkụ SAW nke nwere akụkụ abụọ nwere obere ntinye okpomọkụ
● Ịkwanye ngwọta zuru oke mgbe ịgbado ọkụ gasịrị
Isi Ihe Njikwa Dị Mkpa Maka N08825 Ịgbado Ọkụ:
● Ntinye okpomọkụ: ≤ 1.5 kJ/mm (ihe mgbaru ọsọ ≤ 1.2 kJ/mm)
● Okpomọkụ nke gafere: ≤ 150°C
● Gas nchekwa: Argon (100%) maka TIG; argon + helium maka SAW
● Nhicha: Idebe mmanụ nke ọma tupu ịgbado ọkụ (nickel alloys na-enwe mmetụta na sọlfọ na lead)
● Ịmepụta ihe ngwọta: 980-1040°C, imenyụ mmiri - ọ dị mkpa.
● Enweghị ferrite n'ime ígwè ịgbado ọkụ (mgbado nickel alloy bụ nke austenitic kpamkpam)
7. Usoro Njikwa na Nnwale Ogo maka ASTM B705 UNS N08825 Welded Nickel Alloy Pipe
| Ogbo egwuregwu | Usoro Nnyocha | Ebumnuche |
| Akụrụngwa | Nyocha Kemịkalụ (OES ma ọ bụ ICP) | Nyochaa oke N08825 (Ni, Cr, Mo, Cu, Ti, Fe) |
| Akụrụngwa | Nnwale Nrụgide | Mmepụta ≥ 240 MPa, Nrụgide ≥ 550 MPa |
| Akụrụngwa | Ike siri ike | 75-85 HRB nkịtị |
| Akụrụngwa | Nnwale Nrụgide (ASTM G28) | Nguzogide corrosion dị n'etiti granular (maka ọrụ acid dị oke mkpa) |
| N'ime usoro | Nlekota Ntinye Okpomọkụ | ≤ 1.5 kJ/mm |
| N'ime usoro | Okpomọkụ nkewa gafere | ≤ 150°C |
| Njikọta (ERW) | Eddy Current (100%) | iguzosi ike n'ezi ihe nke njikọta weld |
| Njikọta (EFW/LSAW) | 100% UT (ma ọ bụ PAUT) | Chọpụta ntụpọ weld |
| Njikọta (EFW/LSAW) | RT (10-100% kwa nkọwapụta) | Ogo ịgbado ọkụ |
| Weld | Agba Na-abanye n'ime (PT) | Mgbawa elu |
| Mgbe Ngwọta ahụ gasịrị | Ule Ike | Lelee ọnọdụ ngwọta a gbajiri agbaji |
| Paịpụ Emechara | Nnwale Hydrostatic | Iguzosi ike n'ezi nrụgide |
| Paịpụ Emechara | PMI (XRF) | Kwado ọkwa (Ni, Cr, Mo) |
| Paịpụ Emechara | Ule Nrụgide (ASTM G28 Omume A) | Nguzogide IGC (ọ bụrụ na akọwapụtara ya) |
| Paịpụ Emechara | Ihe a na-ahụ anya na ihe a na-akara | Ịchọpụta ihe dị na ya |
Ule Nhọrọ maka Ọrụ Dị Mkpa:
● ASTM G28 Practice A (50% H₂SO₄ – ferric sulfate) maka iguzogide nchara dị n'etiti granular
● Nnwale ọkpọkọ ASTM G48 (na FeCl₃, 6% na 40°C) maka iguzogide ọkpọkọ kọlọdi
● Nnwale HIC/SSC maka ọrụ utoojoo (NACE TM0284, TM0177)
● Nnwale nrụgide okpomọkụ dị elu (dịka ọmụmaatụ, na 300°C)
● Nha Ferrite (kwesịrị ịbụ < 1% maka alloys nickel)
8. Ngwa Ndị Isi – ASTM B705 UNS N08825 Pipe Alloy Nickel nke a na-agbakọta agbakọta
●Osisi sọlfọ acid:Ijikwa oleum (H₂SO₄ + SO₃), acid concentrated (96-98%), acid diluted (5-10%), na ọkpọkọ acid cooler. Na-anọchi ígwè anaghị agba nchara nke na-emebi ngwa ngwa.
●Mmepụta phosphoric acid (usoro mmiri mmiri):Ihe ndị na-ekupụ mmiri, ihe na-eme ka ihe na-ekpo ọkụ na-ekpo ọkụ, na ihe ndị na-eji phosphoric acid eme ihe na paịpụ nwere chlorides na fluorides. Alloy 825 na-eguzogide ma oxidation na mbelata ọnọdụ.
●Nhazigharị mmanụ ọkụ nuklia:Ijikwa mmanụ nuklia e mefuru agbaze na nitric acid na fluoride. N08825 na-eguzogide nchara n'ebe a na-eme ihe ike nke ukwuu (a na-eji ya na osisi Magnox na THORP).
●Ọrụ utoojoo dị n'ụsọ oké osimiri:Mmepụta mmanụ na gas nwere oke nrụgide akụkụ H₂S (ruo mmanya 10) yana nnukwu chlorides na okpomọkụ ruo 200°C. NACE MR0175 ruru eru.
●Mmiri oyi (oke okpomọkụ):Sistemụ mmiri oyi n'ime ụlọ ọrụ mmepụta ihe dị n'ụsọ oké osimiri na ebe ọkụ eletrik dị ebe okpomọkụ mmiri oké osimiri karịrị 45°C (ebe 2205 na ọbụna super duplex nwere ike ịda). N08825 na-eguzogide mmiri ruo 80°C.
●Ọwa mmiri maka mwepụta nke gas flue gas (FGD):N'okpuru mmiri nke ihe ndị na-amịkọrọ mmiri ebe gas acidic jupụtara na chloride dị. Alloy 825 bụ ọkọlọtọ maka ọkpọkọ mmiri na ihe mkpuchi stack.
●Tankị kemịkalụ:Ọkpọkọ ibu maka kemịkalụ siri ike dịka sọlfọlik, phosphoric acid, na asịd organic. Ụlọ ọrụ mbupu kemịkalụ ukwu kwadoro N08825.
●Osisi ndị na-amị mkpụrụ na ndị na-eme ka acid dịghachi ndụ:Acid hydrochloric (gbazee) na ahịrị ngwakọta nke acid maka mmepụta ígwè anaghị agba nchara.
●Ọgwụgwọ mmiri mkpofu:Mmiri mkpofu ụlọ ọrụ mmepụta ihe na-emebi emebi nke ukwuu site na osisi kemịkalụ (asidi agwakọtara agwakọta, ọla dị arọ, chlorides).
9. Nkwakọ ngwaahịa na Mbupu – ASTM B705 UNS N08825 Pipe Nickel Alloy nke ejiri Welded
Nkwakọ ngwaahịa:
●Nchedo mgbochi ire ere:Mkpuchi plastik ma ọ bụ akwụkwọ VCI. Maka ọrụ kemịkalụ, anaghị ekwe ka ihe fọdụrụ n'ime mmanụ (nkwakọ ngwaahịa dị ọcha).
●Mkpọchi njedebe:Okpu plastik dị arọ (nke nwere agba - nke a na-akpọkarị oroma maka N08825).
●Njikọta (obere dayameta):A na-ekekọta paịpụ ọ bụla n'otu n'otu, wee jiri eriri ndị na-abụghị ígwè kee ya (zere ka e metụ eriri ígwè aka iji gbochie mmetọ).
●Nkwakọ ngwaahịa nkeonwe (Diameta buru ibu):Ihe mkpuchi plastik nwere mgbaaka ụfụfụ n'etiti ọkpọkọ.
●Igbe osisimaka ngwa dị mkpa (nuklia, ọgwụ).
Mbupu:
● Ihe ndị dị n'ime akpa maka ≤ 610mm, nke nwere ike ịgbaji maka dayameta buru ibu.
●Akwụkwọ:MTC 3.1/3.2 (EN 10204), akụkọ nnwale mmiri, akụkọ UT/RT, akụkọ PMI, akụkọ nnwale nchara (ASTM G28 ma ọ bụrụ na akọwapụtara ya), akụkọ nha, ndepụta nkwakọ ngwaahịa, COO. Nleba anya zuru oke site na nọmba okpomọkụ ruo na paịpụ emechara.
10. Uru na Ajụjụ Ndị A Na-ajụkarị Banyere Womic Steel – ASTM B705 UNS N08825 Welded Nickel Alloy Pipe
Gịnị kpatara ya na Womic Steel ji arụ ọrụ maka N08825 Welded Pipe?
● Oke nha zuru oke: ERW 1/4″ – 24″, EFW/LSAW 8″ – 48″.
● Ịmepụta ihe ngwọta zuru oke mgbe ịgbado ọkụ (980-1040°C, imenyụ mmiri).
● Nnwale nchara dị n'etiti granular dịka ASTM G28 si dị (ọ dị mkpa maka ọrụ acid).
● Asambodo NACE MR0175 maka ọrụ dị ụtọ.
● Njikwa mma siri ike - enweghị ferrite na ígwè njikọta.
● Oge asọmpi maka ọkpọkọ nickel alloy: ụbọchị 60-75 maka ERW, ụbọchị 75-90 maka EFW.
Ajụjụ Ndị A Na-ajụkarị (Ajụjụ Ndị A Na-ajụkarị) – ASTM B705 UNS N08825 Pipe Welded
A: Gịnị bụ ihe dị iche n'etiti Incoloy 825 (N08825) na Alloy 20 (N08020)?
A: A na-eji ha abụọ arụ ọrụ maka ọrụ sulfuric acid. Alloy 20 (N08020) nwere nickel dị ala (32-38%) na chromium dị elu (19-21%) yana ọla kọpa. N08825 nwere nickel dị elu (38-46%) na molybdenum (2.5-3.5%) tinyere nkwụsi ike titanium. N08825 nwere iguzogide pitting na chloride SCC ka mma ma dịkwa mma maka ọrụ utoojoo (H₂S). Alloy 20 dị ọnụ ala karịa maka phosphoric acid na diluted sulfuric acid na-enweghị chlorides. A na-akọwakarị N08825 maka ọnọdụ siri ike karị.
Q: N08825 ọ na-eguzogide sulfuric acid na mkpokọta niile?
A: Mba. N08825 dị mma maka sọlfọlik acid ruo ihe dị ka 60% na okpomọkụ ruo 100°C, yana maka mkpokọta dị n'etiti 85-96% na okpomọkụ ụlọ. N'etiti oke (60-85%) na na okpomọkụ dị elu, ọnụego nchara nwere ike ịdị elu. Maka H₂SO₄ nke nwere okpomọkụ dị elu (> 90%, > 150°C), enwere ike ịchọ alloys pụrụ iche dị ka Hastelloy C-276. Lelee chaatị nchara mgbe niile maka ọnọdụ ụfọdụ.
Q: N08825 ọ chọrọ ọgwụgwọ okpomọkụ mgbe a gbanyere ya ọkụ?
A: Maka ọtụtụ ojiji, enwere ike iji N08825 mee ihe n'ọnọdụ a na-ejikọta ya na njikọta n'ihi na nkwụsi ike titanium na-egbochi mmetụta uche. Agbanyeghị, ASTM B705 chọrọ nhazi ngwọta (ọgwụgwọ okpomọkụ) maka ọkpọkọ a na-ejikọta iji mezuo ihe onwunwe igwe na iguzogide nchara. Womic na-arụ ọrụ nhazi ngwọta na ọkpọkọ a na-ejikọta ya na ọkpọkọ a na-ejikọta ya niile. Maka njikọta ubi, ọ dịghị mkpa PWHT maka N08825.
Q: Kedu ihe eji eme ihe mkpuchi ọkụ ka akwadoro maka N08825?
A: A na-ejikarị AWS A5.14 ERNiCrMo-3 (Inconel 625) ma ọ bụ ERNiCrMo-10 (Inconel 622) agbakọta N08825. Ihe na-eme ka ihe dakọtara ga-abụ ERNiCrMo-3. Womic na-eji ERNiCrMo-3 eme ihe maka usoro EFW. Maka ịgbado ọkụ n'ọhịa, a na-atụ aro ka e jiri otu ihe na-eme ka ihe dị n'ime ya.
A: Enwere ike iji N08825 mee ọrụ mmiri mmiri?
A: Ee. N08825 nwere ezigbo iguzogide nsị na mmebi oghere n'ime mmiri oké osimiri, ọbụlagodi n'oge okpomọkụ dị elu (ruo 80°C). A na-ahọrọkarị ya maka sistemụ oyi mmiri n'ime ụlọ ọrụ mmepụta ihe na ụlọ ọrụ ike dị n'ụsọ oké osimiri ebe super duplex (2205) nwere ike ịdaba na mmiri ọkụ n'oge okpomọkụ dị elu. Agbanyeghị, maka ọtụtụ ojiji mmiri oké osimiri, duplex ma ọ bụ super duplex zuru oke ma dịkwa ọnụ ala karịa. A na-echekwa N08825 maka sistemụ mmiri nwere kemịkalụ ndị ọzọ na-emebi emebi (dịka ọmụmaatụ, mmiri oké osimiri nwere chlorine, mmetọ acid).
A: N08825 ọ dị mma maka ọrụ mmiri ara ehi (H₂S)?
A: Ee. N08825 ruru eru dịka NACE MR0175/ISO 15156 si kwuo maka ọrụ mmiri ara ehi nwere nrụgide akụkụ H₂S ruo 1 mmanya (15 psi) na karịa, dabere na njikwa ike. A na-ejikarị ya eme ihe maka ọkpọkọ mmiri dị n'okpuru ala, eriri mmiri, na nhazi ọkpọkọ n'ime ubi mmanụ na gas ebe 2205 duplex ezughi oke n'ihi nnukwu H₂S ma ọ bụ chlorides.
Q: Kedu oge ndu nkịtị maka ọkpọkọ ọkpọkọ UNS N08825?
A: Ụbọchị 60-75 maka ERW (dayameta obere ruo ọkara), ụbọchị 75-90 maka EFW/LSAW (dayameta ukwu). Oge ndu dị ogologo karịa nke ígwè anaghị agba nchara n'ihi na a na-emepụta eriri/efere alloy n'obere ọnụọgụ yana oge ndu igwe ogologo. Nnyocha nke ndị ọzọ na-agbakwụnye ụbọchị 7-14. Iwu ngwa ngwa (ụbọchị 45-60) nwere ike ikwe omume maka nha ọkọlọtọ ma ọ bụrụ na ihe dị na ngwaahịa.
Q: Kedu okpomọkụ kachasị elu maka N08825?
A: Enwere ike iji N08825 rụọ ọrụ na-aga n'ihu ruo 550°C (1020°F) n'ebe na-abụghị acid. Maka ọrụ mmebi, oke okpomọkụ kachasị na-ejedebe site na corrodent. Na sulfuric acid, ọrụ na-abụkarị <100°C; na phosphoric acid ruo <150°C. Maka ọrụ oxidizing okpomọkụ dị elu, a na-atụ aro alloys nwere chromium dị elu (dị ka Alloy 600, 601, ma ọ bụ 625).
Ntụaka Ọrụ - Ntugharị na Mgbanwe Paịpụ nke Osisi Sulfuric Acid nke North America
Obodo:United States (Louisiana, Gulf Coast kemịkalụ)
Ọkọlọtọ na ọkwa:ASTM B705 UNS N08825 (Incoloy 825)
Akụkụ na Ọnụọgụ:
● OD 219.1mm (8″) × Usoro 40S (8.18mm WT) – mita 600 (ihe dị ka tọn 20) – Usoro EFW
● OD 168.3mm (6″) × Usoro 40S (7.11mm WT) – mita 400 (ihe dị ka tọn 10) – Usoro EFW
● OD 88.9mm (3″) × Usoro 40S (5.49mm WT) – mita 800 (ihe dị ka tọn 8) – Usoro ERW
● OD 60.3mm (2″) × Usoro 80S (5.54mm WT) – mita 1,000 (ihe dị ka tọn 6) – Usoro ERW
Ngụkọta:Mita 2,800, ihe dị ka tọn 44
Nkọwapụta:Ngwakọta ASTM B705 UNS N08825 a gwakọtara agwakọta ma gwerie ya, e ji obere akụkụ ya kpuchie ya. Nnwale Hydrostatic. 100% UT maka paịpụ EFW, ugbu a eddy + UT maka ERW. PMI na paịpụ ọ bụla. Nnwale corrosion dị mkpa dịka ASTM G28 Practice A (usoro ferric sulfate-sulfuric acid) si dị - ọnụego corrosion < 10 mpy (mil kwa afọ). Nnwale iguzogide acid hydrofluoric (nke ndị ahịa kpọmkwem). Nnwale nke ndị ọzọ site na SGS USA.
Ngwa:Ịgbanwe ọkpọkọ acid reboiler na usoro nhazi ndị metụtara ya n'ime ụlọ ọrụ mmepụtaghachi acid sulfuric. Ụlọ ọrụ ahụ na-eweghachi acid sulfuric e tinyere n'ime nkeji alkylation (refinery) site na mmebi okpomọkụ na nhazigharị. Ọkpọkọ ahụ na-ejikwa acid sulfuric ọkụ (85-95% H₂SO₄) na 150-200°C na ngalaba reboiler, na-ejikwa acid diluted (5-10% H₂SO₄) na 80-100°C na ngalaba quench. Ọkpọkọ Alloy 20 (N08020) gara aga dara ada mgbe afọ anọ gachara n'ihi mmebi na mgbawa dị n'etiti granular. A họọrọ N08825 maka iguzogide acid siri ike na acid siri ike na nke diluted, yana nkwụsi ike titanium ya.
Ihe Ịma Aka na Ngwọta Teknụzụ:
●Asịd sọlfọm nke nwere oke okpomọkụ dị elu (85-95%, 150-200°C)– Alloy 20 na-emebi ihe n'ọnụego karịrị 50 mpy n'okpuru ọnọdụ ndị a. N08825 nwere ọnọdụ a na-akpọcha ihe ngwọta na usoro ígwè kwesịrị ekwesị nyere ọnụego nchara < 5 mpy na nnwale ASTM G28 na na ngwọta usoro e mere ka ọ dị ka nke onye ahịa (85% H₂SO₄ na 180°C, awa 336). Womic nyere akụkọ nnwale igwe na kupọns nnwale nchara.
●Ihe egwu nke ire ere dị n'etiti granular mgbe ịgbado ọkụ– Ọ bụ ezie na N08825 kwụsiri ike, ntinye okpomọkụ na-ezighi ezi n'oge nrụpụta nwere ike ibute mmiri ozuzo chromium carbide na ókèala ọka. Ntinye okpomọkụ nke welded na-achịkwa Womic ruo ≤ 1.2 kJ/mm ma mee nhazi zuru oke mgbe ịgbado ọkụ. Nnwale ASTM G28 na ihe nlele weld gosiri ọnụego nchara 4-7 mpy (nke dị n'okpuru oke 10 mpy).
●Asambodo usoro ịgbado ọkụ ubi– Ndị otu na-ahụ maka ịrụzi ihe ọkụkụ dị mkpa iji rụzie ihe ubi. Womic nyere kupọnu 20 nke 6″ Schedule 40S yana WPS akwadoro: GTAW nwere ihe na-emeju ERNiCrMo-3, nkwado argon 100%, interpass ≤ 150°C. Kupọnu ndị ahụ gafere ule redio, PT, na ASTM G28. Ndị otu ịgbado ọkụ nke onye ahịa ahụ kwadoro usoro ahụ.
●Nkwenye PMI - ịmata ọdịiche dị n'etiti N08825 na alloys dị ala– Ihe egwu dị n'ebe ahụ nke ịgwakọta N08825 na Alloy 825 (otu UNS ahụ) megide Alloy 625 (ihe mejupụtara dị iche iche). Womic mere XRF na paịpụ ọ bụla ma tinye akara agba (oroma maka 825). Enweghị ngwakọta ọ bụla mere.
●Ngwa ọrụ n'oge atụmatụ maka mgbanwe (mmechi izu anọ)– E si Shanghai bufee paịpụ gaa New Orleans, e mesịa buru ibu gaa ebe a na-ebuga ụgbọala na Louisiana. E bufere tọn 44 niile ụbọchị iri tupu mmalite nke ọrụ. Womic nyere asambodo igwe nrụpụta asambodo (EN 10204 Ụdị 3.2) na akụkọ nnwale nchara tupu oge eruo maka nkwenye QA nke ndị ahịa.
Nsonaazụ:E megharịrị ụlọ ọrụ mmepụtaghachi acid ahụ nke ọma mgbe emechara mgbanwe ya. Mgbe ọnwa iri na abụọ gachara, nyocha nke paịpụ N08825 egosighi mmebi ọ bụla a na-ahụ anya, enweghị mgbawa, na mwakpo dị n'etiti granular. Onye ahịa ahụ mere atụmatụ na paịpụ ọhụrụ ahụ ga-adịru afọ 15+ (ma e jiri ya tụnyere afọ anọ maka Alloy 20). E tinyela Womic Steel na ndepụta ihe ndị ụlọ ọrụ ahụ kwadoro maka nnọchi ọrụ acid n'ọdịnihu.
Kpọtụrụ:
Weebụsaịtị: www.womicsteel.com
Ozi ịntanetị: sales@womicsteel.com
Ekwentị / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Onye mmekọ gị a pụrụ ịtụkwasị obi maka ọkpọkọ nickel alloy ASTM B705 UNS N08825 nke ejiri ígwè rụọ maka osisi sulfuric na phosphoric acid, nhazi nuklia, ọrụ utoojoo mmiri dị n'ụsọ oké osimiri, na ngwa mmiri dị elu n'ụwa niile.
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