1. Q: Inconel 625 yog dab tsi (UNS N06625), thiab nws cov yam ntxwv tseem ceeb ntawm cov khoom siv thiab cov khoom siv hlau yog dab tsi?
A:Inconel 625, npeUNS N06625nyob rau hauv Unified Numbering System thiabW. Nr . 2.4856nyob rau hauv German system, yog ib tug npib tsib xee-chromium-molybdenum-niobium solid- daws- muaj zog superalloy. Tsis zoo li nag lossis daus- cov alloys tawv tawv uas yuav tsum tau kho cov cua sov kom tsim tau lub zog, Inconel 625 muab nws cov khoom tshwj xeeb thiab kev tiv thaiv corrosion feem ntau los ntawm cov khoom- kev daws teeb meem, ua ke nrog cov muaj niobium-stabilized carbides. Qhov no ua rau nws tshwj xeeb tshaj yog haum rau seamless thiab welded yeeb nkab daim ntaub ntawv qhov twg fabricability thiab kev ntseeg tau yog qhov tseem ceeb.
Tshuaj muaj pes tsawg leeg:Kev ua tib zoo sib npaug ntawm Inconel 625 muab nws cov khoom tshwj xeeb:
| Element | Kev sib xyaw ua ke | Muaj nuj nqi |
|---|---|---|
| Nickel (Ni) | 58.0% min (feem ntau 61-65%) | Austenitic matrix; muab corrosion kuj puag |
| Chromium (Cr) | 20.0% - 23.0% | Oxidation tsis kam; tsim kev tiv thaiv chromium oxide nplai |
| Molybdenum (hli) | 8.0% - 10.0% | Exceptional pitting thiab crevice corrosion kuj |
| Niobium (Nb) | 3.15% - 4.15% | Stabilizes carbide; pab txhawb kom muaj zog- daws lub zog |
| Hlau (Fe) | 5.0% max | Khoom- kev daws teeb meem; nqi-effectiveness |
| Cov pa roj carbon (C) | 0.10% max | Tswj carbide tsim |
| Silicon (Si) | 0.50% max | Oxidation kuj |
| Manganese (Mn) | 0.50% max | Deoxidation |
Qhov Khoom -Txoj Kev Txhim Kho Qhov Zoo:Tsis zoo li ntau lwm cov nickel alloys, Inconel 625 tsis cia siab rau nag lossis daus hardening. Qhov no muaj txiaj ntsig zoo rau kev siv yeeb nkab:
| Qhov zoo | Kev piav qhia |
|---|---|
| Tsis xav tau kev kho cua sov | Cov yeeb nkab tuaj yeem siv tau raws li -welded mob; yooj yim fabrication |
| Weldability zoo heev | Tsis muaj kev pheej hmoo ntawm strain- hnub nyoog tawg; zoo ib yam weld khoom |
| Uniform khoom | Cov cuab yeej zoo sib xws hauv txhua ntu; tsis muaj kev hloov pauv los ntawm kev kho cua sov |
| Thermal stability | Tsis muaj precipitates rau coarsen ntawm siab kub |
| Fabricability | tuaj yeem ua haujlwm txias thiab tsim yam tsis muaj kev ua haujlwm nyuaj |
Niobium Stabilization:Qhov sib ntxiv niobium (3.15-4.15%) muab ntau yam txiaj ntsig tseem ceeb:
Carbide stabilization:Niobium nyiam ua ke nrog cov pa roj carbon monoxide los ua MC-hom carbides, tiv thaiv chromium carbide nag lossis daus uas tuaj yeem ua rau muaj kev cuam tshuam ntawm intergranular corrosion.
Khoom- daws teeb meem:Niobium atoms nyob rau hauv nickel matrix muab qhov tseem ceeb ntxiv dag zog
Creep resistance:Fine carbide faib ua rau muaj txiaj ntsig zoo heev
Lub cev muaj zog:
| Khoom | Tus nqi |
|---|---|
| Qhov ntom | 8.44 g / cm³ (0.305 lb / hauv³) |
| Melting ntau | 1290℃- 1350℃(2350℃F - 2460℃F) |
| Thermal conductivity | 9.8 W / m·K ntawm 20 degree |
| Coefficient ntawm thermal expansion | 12.8 × 10⁻⁶ /℃(20-100 degree) |
| Hluav taws xob resistivity | 128 µΩ·cm ntawm 20 degree |
Mechanical Properties (Annealed Condition):
| Khoom | Kev xav tau |
|---|---|
| Tensile zog | 120 ksi (830 MPa) yam tsawg kawg nkaus |
| Yield zog (0.2% offset) | 60 ksi (415 MPa) yam tsawg kawg nkaus |
| Elongation | 30% yam tsawg kawg nkaus |
| Hardness | 180-220 HB yam |
Cov yam ntxwv tseem ceeb rau kev siv yeeb nkab:
| Yam ntxwv | Cov txiaj ntsig rau cov yeeb nkab |
|---|---|
| Corrosion kuj | Zoo heev nyob rau hauv marine, tshuaj, thiab qaub kev pab cuam ib puag ncig |
| Siab - qhov kub thiab txias | Khaws cov khoom mus txog 980℃(1800℃F) |
| Cryogenic toughness | Zoo heev ductility ntawm qhov kub thiab txias |
| Weldability | Tsis muaj kev tshaj tawm -weld kev kho cua sov yuav tsum tau |
| Fabricability | Nws tuaj yeem khoov, tsim, thiab welded siv cov txheej txheem pa |
2. Q: Cov txheej txheem tswj hwm dab tsi siv rau Inconel 625 seamless thiab welded yeeb nkab, thiab cov kev cai tseem ceeb yog dab tsi?
A:Inconel 625 yeeb nkab yog tswj hwm los ntawm ASTM, ASME, thiab AMS cov lus qhia tshwj xeeb uas tsim cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, qhov ntev ntev, thiab cov kev xeem. Kev nkag siab txog cov qauv no yog qhov tseem ceeb rau kev yuav khoom thiab ua raws li cov ntawv thov uas xav tau.
Primary Material Specifications:
| Specification | Yam khoom | Cov Lus Qhia Tseem Ceeb |
|---|---|---|
| ASTM B 444 3 | Seamless thiab welded yeeb nkab (UNS N06625) | Tshuaj muaj pes tsawg leeg, txhua yam khoom, kev kho cua sov, NDE |
| ASTM B704 | Welded yeeb nkab (UNS N06625) | Cov kev cai tshwj xeeb rau kev tsim kho welded |
| ASTM B705, ASTM B705 | Welded yeeb nkab rau kev siv tshuaj nroj tsuag | Ntxiv rau kev kuaj corrosion |
| ASME SB444 | ASME code{0}} pom zoo version | Rau kev siv lub nkoj siab thiab cov kav dej |
| TIAB SA 5581 | Aerospace specification | Seamless thiab welded tubing rau kev siv aerospace |
ASTM B444 - Cov ntsiab lus tseem ceeb:Qhov no yog cov ntsiab lus tseem ceeb rau Inconel 625 seamless thiab welded yeeb nkab:
Chemical Composition rau ASTM B444:
| Element | Kev sib xyaw ua ke |
|---|---|
| Nickel | 58.0% min |
| Chromium | 20.0% - 23.0% |
| Molybdenum | 8.0% - 10.0% |
| Niobium | 3.15% - 4.15% |
| Hlau | 5.0% max |
| Cov pa roj carbon | 0.10% max |
| Silicon | 0.50% max |
| Manganese | 0.50% max |
| Titanium | 0.40% max |
| Aluminium | 0.40% max |
Mechanical Property Requirements:
| Khoom | Seamless Yeeb Nkab | Welded yeeb nkab |
|---|---|---|
| Tensile zog | 120 ksi (830 MPa) min | 120 ksi (830 MPa) min |
| Yield zog (0.2% offset) | 60 ksi (415 MPa) min | 60 ksi (415 MPa) min |
| Elongation | 30% min | 30% min |
Kev kho cua sov yuav tsum muaj:
| Qhov xwm txheej | Kev piav qhia |
|---|---|
| Annealed | Cov tshuaj annealed ntawm 980℃- 1200℃(1800℃F - 2200℃F); txias ceev |
| Kev ntxhov siab -tshaj tawm | Kev xaiv rau welded yeeb nkab kom txo tau qhov seem seem |
Dimensional Tolerances rau ASTM B444:
| Parameter | Ua siab ntev |
|---|---|
| Sab nraud txoj kab uas hla (OD) | ± 0.010 rau qhov ntau thiab tsawg hauv qab 2 hauv; nws txawv ntawm qhov loj |
| Phab ntsa thickness | ± 12.5% ntawm nominal |
| Ntev | ± 0.125 nyob rau hauv rau txiav lengths |
| Kev ncaj | Qhov siab tshaj qhov sib txawv ntawm ib chav tsev ntev |
Nondestructive Examination (NDE) Requirements:
| Kuaj | Kev siv tau | Lub hom phiaj |
|---|---|---|
| Hydrostatic xeem | Txhua lub cev | Kev ntsuas siab ncaj ncees |
| Eddy tam sim no xeem (ET) | Welded yeeb nkab | Weld seam xeem |
| Ultrasonic xeem (UT) | Seamless yeeb nkab | Internal defect nrhiav pom |
| Cov kua dej nkag (PT) | Raws li tau teev tseg | Nto crack detection |
| Kev ntsuas hluav taws xob (RT) | Qhov tseem ceeb welds | Internal weld kev ncaj ncees |
Cov Lus Qhia Ntxiv:
| Kev xav tau | Daim ntawv thov |
|---|---|
| S1 - Kev kuaj ultrasonic | Rau seamless yeeb nkab yuav tsum tau txhim kho NDE |
| S2 - Kev ntsuas hardness | Rau NACE qaub kev ua raws cai |
| S3 - Kev kuaj Corrosion | Rau kev siv tshuaj ua haujlwm |
| S4 - Ua kom siab- ntsuas kub | Rau siab -kev pabcuam kub |
3. Q: Dab tsi yog qhov tseem ceeb ntawm kev tiv thaiv corrosion ntawm Inconel 625 yeeb nkab, thiab vim li cas nws thiaj li tau teev tseg rau kev siv dej hiav txwv, tshuaj, thiab qaub?
A:Inconel 625 yog dav lees paub tias yog ib qho ntawm cov khoom siv ntau yam corrosion-resistant alloys muaj. Nws qhov tshwj xeeb tiv thaiv rau ntau qhov chaw corrosive ua rau nws cov khoom xaiv rau marine, chemical processing, thiab qaub cov kev pab cuam uas lwm yam ntaub ntawv tsis.
Corrosion Resistance Txheej txheem cej luam:
| Ib puag ncig | Kev ua tau zoo | Ntsiab Mechanism |
|---|---|---|
| Dej hiav txwv | Zoo heev | Molybdenum muab pitting tsis kam; siab nickel tiv thaiv chloride SCC |
| Sulfuric acid (H₂SO₄) | Zoo rau zoo heev | Chromium thiab molybdenum muab kev tiv thaiv acid |
| Hydrochloric acid (HCl) | Zoo (dilute) | Molybdenum thiab npib tsib xee tiv thaiv kom tsis txhob muaj kua qaub |
| Phosphoric acid (H₃PO₄) | Zoo heev | Stable passive zaj duab xis tsim |
| Nitric acid (HNO ₃) | Zoo | Chromium muab oxidizing acid tsis kam |
| Cov kua qaub (H₂S + CO₂ + chlorides) | Zoo heev | NACE MR0175 ua raws; nickel siab tiv thaiv SSC |
Pitting thiab Crevice Corrosion Resistance:Cov ntsiab lus siab molybdenum (8-10%) muab kev tiv thaiv zoo rau hauv cheeb tsam corrosion:
| Alloy | Molybdenum Cov ntsiab lus | PREN | Pitting Resistance |
|---|---|---|---|
| Ib 625 | 8-10% | 45-50 | Zoo heev |
| 316L Stainless hlau | 2-3% | 24 | pluag |
| ib 825 | 2.5-3.5% | 30-35 | Zoo |
| Hastelloy C-276 | 15-17% | 55-60 | Superior |
*PREN=%Cr + 3.3 × %Mo + 16 × %N*
Chloride Stress Corrosion Cracking (SCC) Resistance:Inconel 625 yog qhov tiv thaiv zoo rau chloride-induced SCC:
| Khoom siv | Cov ntsiab lus Nickel | SCC Resistance |
|---|---|---|
| 316L Stainless hlau | 10-14% | pluag |
| TIAB SA 2205 | 5-7% | Zoo |
| Ib 625 | 58% min | Zoo heev |
| Titanium | N/A | Zoo heev |
Sour Service (NACE MR0175 / ISO 15156):Inconel 625 tau pom zoo rau daim ntawv thov kev pabcuam qaub:
| Kev xav tau | Specification |
|---|---|
| Hardness txwv | Tsawg dua lossis sib npaug li 35 HRC (feem ntau) |
| Kev kho cua sov | Kev daws teeb meem-annealed lossis ntxhov siab-relieved |
| H₂S ib nrab siab | Haum rau txog 1000 psi (69 bar) |
| Qhov kub thiab txias | Txhua yam roj & roj kub kub |
Siab -Tub kub Oxidation Resistance:Cov ntsiab lus chromium (20-23%) muab oxidation zoo heev:
| Kub | Kev ua tau zoo |
|---|---|
| Mus txog 540℃(1000℃F) | Zoo heev; negligible oxidation |
| 540-870℃(1000-1600℃F) | Zoo; tiv thaiv chromium oxide nplai |
| 870-980℃(1600-1800℃F) | Nruab nrab; haum rau cov kev pabcuam cuam tshuam |
Kev Siv Tshuaj Siv Tshuaj:
| Ib puag ncig | Vim li cas Inconel 625 raug xaiv |
|---|---|
| Seawater cooling systems | Pitting thiab crevice corrosion kuj |
| Flue Gas desulfurization (FGD) | Tsis kam rau sulfuric thiab sulfurous acids |
| Kev tsim cov phosphoric acid | Zoo heev kuj nyob rau hauv tag nrho cov concentrations |
| Offshore platforms | Combined marine thiab qaub roj kuj |
Kev siv Marine:
| Cheebtsam | Kev sib tw Corrosion |
|---|---|
| Seawater kav dej | Pitting, crevice, thiab galvanic corrosion |
| Thaum tshav kub kub exchangers | Seawater corrosion ntawm lub raj sab |
| Hluav taws kub systems | Kev ntseeg tau nyob rau hauv cov xwm txheej ruaj khov |
| Subsea tswj kab | Combined internal thiab sab nraud corrosion |
4. Q: Dab tsi yog qhov tseem ceeb ntawm kev tsim, vuam, thiab kev teeb tsa rau Inconel 625 yeeb nkab?
A:Kev tsim thiab vuam ntawm Inconel 625 yeeb nkab yuav tsum tau tshwj xeeb cov txheej txheem uas muaj kev cuam tshuam cov alloy cov yam ntxwv tshwj xeeb metallurgical. Tsis zoo li nag lossis daus- cov alloys hardening, Inconel 625 muaj qhov zoo tshaj plaws weldability thiab tsis xav tau tom qab-weld heat treatment, ho simplifying fabrication.
Welding Considerations:Inconel 625 nthuav dav weldability zoo, qhov txiaj ntsig tseem ceeb rau kev tsim cov yeeb nkab:
| Parameter | Kev pom zoo |
|---|---|
| Cov txheej txheem vuam | GTAW (TIG) nyiam rau cov yeeb nkab; GMAW rau cov seem tuab; SMAW for field welding |
| Filler hlau | ERNiCrMo-3 (raws li Inconel 625 muaj pes tsawg leeg) |
| Tiv thaiv roj | Argon lossis argon-helium sib tov; rov qab purging tseem ceeb rau cov hauv paus hla |
| Thaum tshav kub kub input | Tswj kom txo qis distortion; 15-50 kJ / hauv cov qauv |
| Interpass kub | Ua kom qis dua 150℃(300℃F) |
| Preheating | Tsis xav tau |
| Tshaj tawm -weld kub kho | Tsis tas yuav tsum tau (qhov zoo tshwj xeeb ntawm Inconel 625) |
Filler Hlau Xaiv:
| Filler | Kev sib xyaw | Daim ntawv thov |
|---|---|---|
| ERNiCrMo-3 | Sib piv Inconel 625 | Txheem rau tag nrho Inconel 625 vuam |
| ERNiCrMo-10 | Alloy C-22 hom | Lwm txoj hauv kev txhim kho corrosion kuj |
| ENiCrMo-3 (pob electrode) | Kev sib xyaw ua ke | Field welding applications |
Cov txheej txheem welding tseem ceeb:
| Xyaum | Kev xav |
|---|---|
| Kev huv huv nruj | Sulfur, lead, thiab zinc paug ua rau kub tawg thiab embrittlement |
| Cov cuab yeej tshwj xeeb | Tiv thaiv hlau hla- paug los ntawm carbon steel |
| Rov qab purging | Qhov tseem ceeb rau cov hauv paus hla los tiv thaiv oxidation sab hauv |
| Tswj cua sov input | Tiv thaiv cov qoob loo ntau dhau kev loj hlob thiab distortion |
| Tsis muaj kev tshaj tawm -weld heat treatment | Tshwj xeeb kom zoo dua; yooj yim fabrication |
Forging thiab Bending:
| Kev ua haujlwm | Kev pom zoo |
|---|---|
| Txias khoov | Zoo heev formability nyob rau hauv annealed mob |
| Yam tsawg kawg khoov vojvoog | 3 × rau 5 × yeeb nkab OD (nyob ntawm phab ntsa thickness) |
| Kub dabtsi yog khoov | 950℃- 1150℃(1740℃F - 2100℃F); xav tau cov tshuaj tom qab annealing |
| Springback | Nruab nrab; nyiaj pab yuav tsum tau nyob rau hauv cov cuab yeej |
Kev txiav txim siab Machining:
| Parameter | Kev pom zoo |
|---|---|
| Tooling | Carbide tooling (C-2 lossis C-3 qib) |
| Nto ceev (carbide) | 80-120 SFM (roughing); 100-150 SFM (ua tiav) |
| Pub tus nqi | Aggressive feeds (0.005-0.015 in/rev) |
| Qhov tob ntawm kev txiav | Txaus kom tsis txhob txhuam |
| Coolant | Dej nyab qhov tseem ceeb; dej- cov kua dej ua kua dej nyiam nyiam |
Installation Considerations rau Pipe Systems:
| Kev txiav txim siab | Kev pom zoo |
|---|---|
| Dissimilar hlau pob qij txha | Siv cov kev hloov pauv kom tsim nyog thaum txuas rau cov hlau carbon hlau |
| Gaskets | Siv cov nickel alloy lossis PTFE gaskets los tiv thaiv galvanic corrosion |
| Flange xaiv | Siv tau tshaj nickel alloy lossis stainless hlau flanges |
| Cov yeeb nkab txhawb nqa | Tsis txhob sib cuag ncaj qha nrog carbon steel; siv cov khoom sib cais |
| Thermal expansion | Tso cai rau kev nthuav dav vim CTE ntawm 12.8 × 10⁻⁶ / degree |
Kev soj ntsuam xyuas:
| Kuaj | Daim ntawv thov |
|---|---|
| Kev kuaj pom | Tag nrho cov welds |
| Cov kua dej nkag (PT) | Nto crack detection |
| Kev ntsuas hluav taws xob (RT) | Rau qhov tseem ceeb welds; kev siv siab |
| Hydrostatic xeem | Ua kom tiav cov kav dej |
5. Q: Dab tsi yog qhov kev lees paub zoo, kev sim, thiab kev xav txog kev yuav khoom yog qhov tseem ceeb rau Inconel 625 yeeb nkab hauv cov ntawv thov tseem ceeb?
A:Kev yuav khoom ntawm Inconel 625 yeeb nkab rau cov ntawv thov tseem ceeb-xws li marine, chemical processing, and sour oil & gas service-yuav tsum tau ua tib zoo saib xyuas kom zoo, kuaj cov txheej txheem, thiab cov saw saw kev ntseeg tau. Kev sib xyaw ua ke ntawm cov ntsiab lus siab alloy thiab kev xav tau kev pabcuam xav tau kom cov khoom zoo ua tau raws li cov kev xav tau nruj tshaj plaws.
Material Certification thiab Traceability:Lub hauv paus ntawm kev ruaj ntseg zoo yog cov ntaub ntawv dav dav:
| Cov ntaub ntawv | Cov ntaub ntawv xav tau |
|---|---|
| Mill Test Report (MTRs) | Thaum tshav kub kub, tshuaj ntsuam xyuas, mechanical zog, kev kho cua sov |
| Cov ntaub ntawv kho cua sov | Solution annealing kub thiab txias txoj kev |
| NDE qhia | Hydrostatic, UT, ET, lossis RT cov txiaj ntsig |
| Khoom cim | Thaum tshav kub kub tooj, specification, alloy, qhov ntev |
| Traceability | Tag nrho traceability los ntawm yaj mus rau cov yeeb nkab tiav |
Chemical Composition Verification rau ASTM B444:
| Element | Kev xav tau | Kev Tshawb Fawb |
|---|---|---|
| Nickel | 58.0% min | Kev ntsuas kub + PMI |
| Chromium | 20.0% - 23.0% | Kev ntsuas kub + PMI |
| Molybdenum | 8.0% - 10.0% | Qhov tseem ceeb rau pitting kuj |
| Niobium | 3.15% - 4.15% | Qhov tseem ceeb rau carbide stabilization |
| Cov pa roj carbon | 0.10% max | Tswj kom muaj kev tiv thaiv corrosion |
Mechanical Test Requirements:
| Kuaj | Kev xav tau | Ntau zaus |
|---|---|---|
| Tensile (chaw temp) | 120 ksi (830 MPa) min UTS; 60 ksi (415 MPa) min YS | Rau qhov kub / ntau |
| Elongation | 30% min | Rau qhov kub / ntau |
| Hardness | Raws li pom zoo; Tsawg dua lossis sib npaug rau 35 HRC rau NACE | Rau qhov kub / ntau |
| Kev ntsuam xyuas | Tsis tawg | Rau ntau (rau cov kav dej) |
| Flaring xeem | Tsis tawg | Rau ntau (rau cov kav dej) |
Nondestructive Examination (NDE):
| Kuaj | Kev siv tau | Lub hom phiaj |
|---|---|---|
| Hydrostatic xeem | Txhua lub cev | Siab ncaj ncees; tsis muaj dej paug |
| Kev kuaj ultrasonic (UT) | Seamless yeeb nkab; raws li tau teev tseg | Internal defect nrhiav pom |
| Eddy tam sim no xeem (ET) | Welded yeeb nkab | Weld seam xeem |
| Cov kua dej nkag (PT) | Raws li tau teev tseg | Nto crack detection |
| Kev ntsuas hluav taws xob (RT) | Qhov tseem ceeb welds | Internal weld kev ncaj ncees |
Corrosion Test Requirements:
| Kuaj | Txuj | Lub hom phiaj |
|---|---|---|
| Intergranular corrosion kuj | ASTM G28 | Txheeb xyuas qhov tsis kam mus rau rhiab heev |
| Pitting kuj | ASTM G48 | Ntsuam xyuas thaj tsam corrosion kuj |
| Kev pabcuam qaub | NWS TM0177 | SSC tiv thaiv pov thawj (yog tias xav tau) |
NACE MR0175 / ISO 15156 Ua raws:Rau kev siv qaub qaub:
| Kev xav tau | Specification |
|---|---|
| Hardness | Tsawg dua lossis sib npaug li 35 HRC (feem ntau) |
| Kev kho cua sov | Kev daws teeb meem-annealed lossis ntxhov siab-relieved |
| Cov ntaub ntawv | NACE qhia meej txog kev ua raws cai ntawm MTRs |
| Kev sim | Kev txheeb xyuas hardness ib lub tshav kub / ntau |
Supplier Qualification:
| Kev ntsuas | Kev xav tau |
|---|---|
| Qhov system zoo | ISO 9001; ASME ntawv pov thawj rau kev siv siab |
| Mill kev pom zoo | Pom zoo los ntawm cov roj & roj loj lossis cov neeg ua haujlwm tshuaj lom neeg |
| Kev kuaj kuaj | ISO 17025 kev lees paub |
| Traceability systems | Tag nrho traceability muaj peev xwm |
| NDE kev tsim nyog | Certified NDE cov neeg ua haujlwm thiab cov txheej txheem |
Daim ntawv teev cov khoom Specification:
ASTM B444 lossis ASME SB444 specification
Alloy UNS N06625 (Inconel 625) Cov.
Daim ntawv khoom (seamless lossis welded yeeb nkab)
Dimensions (OD, phab ntsa thickness, ntev)
Qhov xwm txheej (kev ntxhov siab lossis kev ntxhov siab-relieved)
NDE cov cai (UT, ET, hydrostatic)
NACE MR0175 ua raws (yog tias xav tau)
Corrosion xeem cov cai
Daim ntawv pov thawj xav tau
Thib peb-kev tshuaj ntsuam xyuas (yog tias xav tau)
Tau Txais Daim Ntawv Tshawb Fawb:
Txheeb xyuas cov cim sib phim kev yuav khoom (suab tooj cua sov, alloy, specification)
Tshawb xyuas MTRs kom tiav thiab ua raws
Paub meej tias cov tshuaj muaj pes tsawg leeg ua tau raws li UNS N06625 txwv
Ua Kev Ntsuas Cov Khoom Siv Zoo (PMI).
Txheeb xyuas qhov ntev (OD, phab ntsa thickness, ntev, ncaj)
Tshawb xyuas qhov xwm txheej ntawm qhov tsis xws luag
Rau cov ntawv thov NACE, txheeb xyuas qhov nyuaj
Kos qhov kawg npaj (yog tias tau teev tseg)
Cia thiab tuav:
| Xyaum | Kev xav |
|---|---|
| Ib puag ncig huv | Tiv thaiv cov hlau tsis huv los ntawm carbon steel |
| End caps | Tiv thaiv cov yeeb nkab kawg ntawm cov khib nyiab thiab ya raws |
| Traceability khaws cia | Xyuas kom paub tseeb tias qhov ntsuas kub ntawm tus lej tseem pom tau |
| Kev cais | Cais los ntawm cov xov tooj cua sov thiab specification |
| Kev nqa | Siv cov hlua uas tsis yog -marring slings; tiv thaiv qhov chaw puas |
Cov chij liab kom zam:
| Tus chij liab | Muaj peev xwm txaus ntshai |
|---|---|
| Tus nqi tseem ceeb hauv qab kev ua lag luam | Tawm - cov lus qhia lossis cov khoom cuav |
| Tsis muaj cov xov tooj cua sov | Tsis muaj traceability |
| Tsis tiav MTRs | Tsis tuaj yeem txheeb xyuas qhov muaj pes tsawg leeg lossis cov khoom |
| Tsis muaj peev xwm PMI | Kev tswj tsis tau zoo |
| NACE cov ntaub ntawv ploj lawm | Tsis yog -raws li kev pabcuam qaub |
Los ntawm kev ua raws li qhov kev lees paub zoo thiab kev coj ua, cov neeg yuav khoom tuaj yeem ua kom ntseeg tau tias Inconel 625 yeeb nkab ua tau raws li cov kev cai nruj ntawm kev ua dej hiav txwv, tshuaj lom neeg, thiab cov roj qaub & roj siv, muab cov kev tiv thaiv corrosion, siab - qhov kub thiab txias, thiab kev ntseeg siab tseem ceeb rau kev ua haujlwm ntev - lub sijhawm ua haujlwm nyob rau hauv qhov xav tau ib puag ncig.
