1. Q: Dab tsi yog qhov sib txawv tseem ceeb ntawm Incoloy 800, 825, 901, 925, thiab 926 npib tsib xee alloy tuav, thiab cov kev sib txawv no ua li cas coj cov khoom siv rau tus nqi - siv tau zoo?
A:Incoloy tsev neeg ntawm nickel-hlau-chromium alloys sawv cev rau ntau yam khoom siv, txhua tus engineered nrog cov kev sib xyaw tshwj xeeb thiab ntxiv dag zog rau cov txheej txheem los daws cov kev pabcuam sib txawv. Kev nkag siab txog cov kev sib txawv no yog qhov tseem ceeb rau kev xaiv cov khoom tsim nyog thaum nrhiav tus nqi- cov kev daws teeb meem zoo rau ntau yam kev siv hauv kev lag luam.
Incoloy 800 (UNS N08800):Cov hlau no yog tus cwj pwm los ntawm nws cov ntsiab lus nickel siab (30% txog 35%) ua ke nrog 19% mus rau 23% chromium thiab sib npaug hlau. Nws yog ib qho khoom siv - kev daws teeb meem - muaj zog alloy muab kev ua haujlwm zoo heev rau oxidation, carburization, thiab sulfidation ntawm qhov kub siab. Incoloy 800 yog siv dav hauv cov khoom siv kho cua sov, cov khoom siv hauv tsev, thiab kev siv petrochemical. Lub alloy tuav lub zog muaj txiaj ntsig txog li 815℃(1500℃F). Rau cov ntawv thov uas yuav tsum tau ua kom muaj zog ntxiv, Incoloy 800H (UNS N08810) thiab 800HT (UNS N08811) txawv nrog cov tswj cov pa roj carbon, titanium, thiab txhuas.
Incoloy 825 (UNS N08825):Cov nag lossis daus-tuaj yeem siv tau tab sis feem ntau siv rau hauv cov tshuaj-annealed mob, Incoloy 825 muaj kwv yees li 38% mus rau 46% npib tsib xee, 19.5% txog 23.5% chromium, 2.5% mus rau 3.5% molybdenum, thiab ntxiv ntawm tooj liab thiab titanium. Cov molybdenum thiab tooj liab ntxiv muab tshwj xeeb rau kev txo cov kua qaub xws li sulfuric thiab phosphoric acid. Cov titanium ntxiv stabilizes alloy tiv thaiv intergranular corrosion. Incoloy 825 yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv tshuaj lom neeg, cov roj thiab cov roj hauv cov khoom siv hauv nkoj, thiab cov kev siv dej hiav txwv uas muaj ob qho kev tiv thaiv corrosion thiab nqi - yuav tsum muaj kev ua tau zoo.
Incoloy 901 (UNS N09901):Cov nag lossis daus- hardening alloy nrog kwv yees li 40% mus rau 45% npib tsib xee, 11% mus rau 14% chromium, 5.0% mus rau 6.5% molybdenum, thiab titanium thiab aluminium ntxiv rau gamma -prime (') ntxiv dag zog rau. Incoloy 901 muaj lub zog siab ntawm qhov kub siab txog 760℃(1400℃F) nrog oxidation zoo. Nws feem ntau yog siv rau hauv cov roj turbine cav Cheebtsam, siab - kub fasteners, thiab aerospace daim ntawv thov uas yuav tsum tau ib tug sib npaug ntawm lub zog thiab fabricability ntawm tus nqi qis dua siab dua -nickel superalloys.
Incoloy 925 (UNS N09925):Cov nag lossis daus- hardening alloy muab los ntawm Incoloy 825, nrog rau ntxiv ntawm titanium (1.5% mus rau 2.5%) thiab txhuas (0.1% mus rau 0.5%) rau gamma- prime strengthening. Nws muab cov kev tiv thaiv corrosion ntawm Incoloy 825 nrog lub zog ntau dua. Incoloy 925 yog tsim tshwj xeeb rau kev pabcuam roj qaub (roj thiab roj ib puag ncig uas muaj hydrogen sulfide) thiab ua tau raws li NACE MR0175 / ISO 15156 cov cai rau sulfide kev ntxhov siab tawg (SSC) tsis kam. Nws yog dav siv rau cov khoom hauv qab, cov khoom siv hauv lub taub hau, thiab siab - lub zog fasteners nyob rau hauv ib puag ncig corrosive.
Incoloy 926 (UNS N08926):Super-austenitic stainless hlau feem ntau ua ke nrog cov khoom Incoloy, muaj kwv yees li 24% mus rau 26% npib tsib xee, 19% mus rau 21% chromium, 6.0% mus rau 7.0% molybdenum, thiab tooj liab thiab nitrogen ntxiv. Nws muaj qhov tshwj xeeb tiv thaiv rau pitting thiab crevice corrosion nyob rau hauv chloride- muaj ib puag ncig, nrog rau qhov tseem ceeb pitting kub siab dua li cov pa stainless hlau. Incoloy 926 yog siv nyob rau hauv seawater cooling systems, desalination nroj tsuag, thiab tshuaj ua cov cuab yeej uas corrosion kuj yog ib qho tseem ceeb tab sis tus nqi yog ib tug xav txog.
Tus nqi -Txoj kev xaiv zoo:
| Alloy | Kev Txhim Kho Thawj Coj | Qhov kub thiab txias | Corrosion Focus | Tus Nqi Txoj Haujlwm |
|---|---|---|---|---|
| Kev 800 | Khoom -kev daws teeb meem | Mus txog 815℃(1500℃F) | Oxidation, carburization | Tsawg rau nruab nrab |
| lus 825 | Khoom -kev daws teeb meem | Mus txog 540℃(1000℃F) | Txo cov acids, chlorides | Nruab nrab |
| lus 901 | Dej nag (') | Mus txog 760℃(1400℃F) | Oxidation, siab -qhov kub thiab txias | Nruab nrab mus rau siab |
| lus 925 | Dej nag (') | Mus txog 540℃(1000℃F) | Cov kua qaub (H₂S), chlorides | Nruab nrab mus rau siab |
| lus 926 | Khoom -kev daws teeb meem | Txog li 300℃(570℃F) | Dej hiav txwv, chlorides | Nruab nrab |
Kev xaiv cov qib Incoloy tshwj xeeb rau cov nqi qis - cov ntawv thov nqi suav nrog kev ntsuas kev ua tau zoo ntawm cov nqi khoom siv, nrog Incoloy 800 thiab 825 feem ntau sawv cev rau tus nqi ntau dua - cov kev xaiv zoo rau cov kev pabcuam nruab nrab.
2. Q: Cov txheej txheem tswj hwm dab tsi siv rau Incoloy 800, 825, 901, 925, thiab 926 npib tsib xee alloy tuav, thiab cov qauv no ua li cas thiaj li ua tau zoo thoob plaws ntau yam kev siv?
A:Incoloy nickel alloy tuav yog tswj hwm los ntawm cov txheej txheem dav dav ntawm ASTM, ASME, thiab AMS cov lus qhia tshwj xeeb uas tsim cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev tsim khoom. Kev nkag siab txog cov qauv no yog qhov tseem ceeb rau kev ua kom ntseeg tau tias cov khoom siv qis - tus nqi tseem ua tau raws li qhov xav tau ntawm daim ntawv thov.
Primary Material Specifications:
| Alloy | ASTM Bar Specification | ASME Specification | AMS Specification (Aerospace) |
|---|---|---|---|
| Incoloy 800 (N08800) | ASTM B 408 Cov khoom siv | ASME SB 408 | AWS 5766 (800H) |
| Incoloy 825 N08825 | ASTM B425, ASTM B425 | ASME SB 425 | TIAB SA 5767 |
| Incoloy 901 N09901 | ASTM B 409 Cov khoom siv raw khoom | ASME SB 409 | TIAB SA 5661 |
| Incoloy 925 N09925 | ASTM B 805 Cov Lus Qhia Tshwj Xeeb | ASME SWB 805 | - |
| Tus Qauv Zauv: Incoloy 926 (N08926) | ASTM B 649 Cov khoom lag luam | ASME SWB 649 | - |
ASTM B408 - Incoloy 800 Bars:Qhov kev qhia tshwj xeeb no suav nrog kub- ua haujlwm thiab txias- ua haujlwm ntawm UNS N08800, N08810, thiab N08811. Nws txib:
Tshuaj muaj pes tsawg leeg:Nickel 30.0% rau 35.0%, chromium 19.0% rau 23.0%, carbon 0.10% max rau 800; 0.05% rau 0.10% rau 800H; nrog tswj titanium thiab txhuas rau 800HT
Mechanical zog:Tensile zog 75 ksi (515 MPa) yam tsawg kawg nkaus, yield zog 30 ksi (205 MPa) yam tsawg kawg nkaus, elongation 30% yam tsawg kawg nkaus
Kev kho cua sov:Kev daws annealing ntawm 980℃txog 1175℃(1800℃F txog 2150℃F) ua raws li qhov txias txias
ASTM B425 - Incoloy 825 Bars:Qhov kev qhia tshwj xeeb no suav nrog UNS N08825 bars. Cov ntsiab lus tseem ceeb suav nrog:
Tshuaj muaj pes tsawg leeg:Nickel 38.0% mus rau 46.0%, chromium 19.5% mus rau 23.5%, molybdenum 2.5% mus rau 3.5%, tooj liab 1.5% mus rau 3.0%, titanium 0.6% mus rau 1.2%
Mechanical zog:Tensile zog 85 ksi (585 MPa) yam tsawg kawg nkaus, yield zog 35 ksi (240 MPa) yam tsawg kawg nkaus, elongation 30% yam tsawg kawg nkaus
Corrosion kuj:Qhov sib ntxiv titanium muab stabilization tiv thaiv intergranular corrosion
ASTM B409 - Incoloy 901 Bars:Qhov kev qhia tshwj xeeb no suav nrog UNS N09901 tuav. Cov kev xav tau muaj xws li:
Tshuaj muaj pes tsawg leeg:Nickel 40.0% mus rau 45.0%, chromium 11.0% mus rau 14.0%, molybdenum 5.0% rau 6.5%, titanium 2.0% mus rau 3.0%, aluminium 0.1% rau 0.3%
Mechanical Properties (hnub nyoog):Tensile zog 140 ksi (965 MPa) yam tsawg kawg nkaus, yield zog 100 ksi (690 MPa) yam tsawg kawg nkaus, elongation 15% yam tsawg kawg nkaus
Kev kho cua sov:Kev daws anneal ua raws los ntawm nag lossis daus hardening
ASTM B805 - Incoloy 925 Bars:Qhov kev qhia tshwj xeeb no suav nrog UNS N09925 nag lossis daus-cov khoom hnyav. Cov ntsiab lus tseem ceeb:
Tshuaj muaj pes tsawg leeg:Raws li Incoloy 825 nrog nce titanium (1.5% mus rau 2.5%) thiab txhuas (0.1% rau 0.5%)
Mechanical Properties (hnub nyoog):Tensile zog 135 ksi (930 MPa) yam tsawg kawg nkaus, yield zog 100 ksi (690 MPa) yam tsawg kawg nkaus, elongation 20% yam tsawg kawg nkaus
NACE ua raws li:Feem ntau teev kom tau raws li MR0175 / ISO 15156 rau kev pabcuam qaub
ASTM B649 - Incoloy 926 Bars:Qhov kev qhia tshwj xeeb no suav nrog UNS N08926 bars. Cov kev xav tau muaj xws li:
Tshuaj muaj pes tsawg leeg:Nickel 24.0% mus rau 26.0%, chromium 19.0% mus rau 21.0%, molybdenum 6.0% mus rau 7.0%, tooj liab 0.5% mus rau 1.5%, nitrogen 0.15% rau 0.25%
Mechanical zog:Tensile zog 94 ksi (650 MPa) yam tsawg kawg nkaus, yield zog 43 ksi (295 MPa) yam tsawg kawg nkaus, elongation 35% yam tsawg kawg nkaus
Pitting kuj:PREN (Pitting Resistance Equivalent Number) feem ntau tshaj 40
Cov Lus Qhia Ntxiv:Rau cov ntawv thov tseem ceeb, cov neeg yuav khoom tuaj yeem hais qhia:
Kev kuaj tsis raug:Ultrasonic kuaj rau sab hauv tsis xws luag
Positive Material Identification (PMI):Kev txheeb xyuas ntawm alloy muaj pes tsawg leeg
Kev kuaj Corrosion:Ib ASTM G28 rau intergranular corrosion los yog ASTM G48 rau pitting kuj
Grain loj tswj:Rau siab -kev pabcuam kub
Cov ntaub ntawv pov thawj zoo:Thaum yuav khoom qis - nqi Incoloy tuav, cov neeg yuav khoom yuav tsum hais rau:
Mill Test Report (MTRs):Certifying tshuaj ntsuam xyuas thiab mechanical zog
Traceability:Thaum tshav kub kub tus lej cim ntawm txhua qhov bar
Conformance ntawv pov thawj:Nqe lus piav qhia txog kev ua raws li ASTM / ASME specifications
3. Q: Dab tsi yog qhov tseem ceeb ntawm fabrication thiab machining kev txiav txim siab rau Incoloy nickel alloy tuav kom muaj nuj nqis -kev ua tau zoo yam tsis muaj kev cuam tshuam zoo?
A:Kev tsim thiab machining ntawm Incoloy nickel alloy tuav yuav tsum tau tshwj xeeb cov txheej txheem uas muaj kev cuam tshuam lub cev lub cev tshwj xeeb ntawm cov npib tsib xee - hlau -chromium alloys. Kev tsim khoom tsim nyog yog qhov tseem ceeb los tswj cov kev tiv thaiv corrosion thiab kev ua haujlwm zoo ntawm cov khoom thaum tswj cov nqi tsim khoom.
Kev txiav txim siab Machining:Incoloy alloys feem ntau muab faib ua "ua hauj lwm- hardening" cov ntaub ntawv, txhais tau tias lawv ua nyuaj thiab nyuaj rau txiav raws li machining zuj zus. Cov ntsiab lus tseem ceeb suav nrog:
Tooling xaiv:Carbide tooling (C-2 lossis C-3 qib) raug pom zoo rau kev tsim khoom. Ntse txiav ntug yog qhov tseem ceeb; dull cov cuab yeej ua rau kom ua hauj lwm hardening thiab cua sov tsim.
Txiav Parameters:
Nto ceev:Rau carbide tooling, 100 mus rau 150 nto taw ib feeb (SFM) rau roughing; 150 txog 200 SFM rau kev ua tiav
Pub tus nqi:Aggressive feeds (0.005 mus rau 0.015 nti ib kiv puag ncig) los txiav hauv qab ntawm kev ua hauj lwm - hardened txheej
Qhov tob ntawm kev txiav:Qhov tob txaus kom tsis txhob txhuam; Lub teeb txiav nrog qeeb qeeb yuav tsum zam
Coolant thiab lubrication:Flood coolant yog qhov tseem ceeb rau cov cua kub dissipation thiab nti khiav tawm. Dej- cov kua dej ua kua dej yog nyiam dua; sulfur-raws li cov roj txiav tej zaum yuav ua rau muaj paug paug thiab tsis pom zoo.
Chip tswj:Incoloy alloys tsim cov tawv tawv, stringy chips. Chip breakers ntawm tooling thiab tshem tawm cov nti tsis tu ncua yog tsim nyog los tiv thaiv nti entanglement.
Kev sib piv ntawm Machinability:
| Alloy | Machinability Rating (Tus txheeb ze) | Cov Kev Sib Tw Tseem Ceeb |
|---|---|---|
| Kev 800 | Nruab nrab (zoo ib yam li 316 stainless) | Ua hauj lwm hardening, stringy chips |
| lus 825 | Nruab nrab | Ua haujlwm hardening, cuab yeej hnav |
| lus 901 | qis | Lub zog siab, nag lossis daus- mob hnyav |
| lus 925 | qis | Siab zog, ua hauj lwm hardening |
| lus 926 | Nruab nrab | Ua hauj lwm hardening, carbide tooling pom zoo |
Forging thiab Bending:Nyob rau hauv cov mob annealed, Incoloy alloys pom zoo ductility:
Cold forming:Incoloy 800 thiab 825 tuaj yeem ua txias tsim siv cov txheej txheem ua haujlwm. Ua hauj lwm hardening tshwm sim sai heev; intermediate annealing tej zaum yuav xav tau rau cov duab complex.
Kub sib sau:Rau Incoloy 901 thiab 925 nyob rau hauv lub hnub nyoog mob, kub sib sau yog nyiam. Qhov kub ua haujlwm kub yog li ntawm 980℃txog 1175℃(1800℃F txog 2150℃F).
Springback:Incoloy alloys nthuav tawm ntau springback dua carbon steel; cov nyiaj pub dawb yuav tsum tau ua hauv kev tsim cov cuab yeej.
Welding Considerations:Weldability sib txawv ntawm cov qib Incoloy:
Qhov siab 800:Weldability zoo heev. Muab cov hlau sib txuam (ERNiCr-3 lossis ERNiCrFe-5) raug pom zoo. Tsis muaj kev kho cua sov tom qab vuam feem ntau xav tau rau kev pabcuam dav dav.
Qauv 825:Zoo weldability. Matching filler hlau (ERNiCrMo-3) yog siv. Lub titanium stabilization muab kev tiv thaiv rau intergranular corrosion nyob rau hauv lub as-welded mob.
Qauv TSIS MUAJ: 901Yuav tsum tau ceev faj welding nrog muab tub lim. Tom qab-weld kev kho cua sov (kev daws teeb meem anneal thiab hnub nyoog) yuav tsum tau los kho cov khoom siv kho tshuab.
Qauv Zauv 925:Zoo weldability thaum ua raws li cov txheej txheem. Post-weld aging tej zaum yuav tsum tau los kho cov nag lossis daus-cov khoom tawv.
Qauv Zauv 926:Zoo weldability. Matching muab tub lim hlau (ERNiCrMo-3) feem ntau yog siv.
Qhov tseem ceeb welding kev coj ua rau txhua qhov Incoloy alloys:
Kev huv huv:Kev tu nruj kom tshem tawm cov roj, roj, thiab cov khoom siv kos npe
Kub input tswj:Kev tswj qhov kub thiab txias (feem ntau qis dua 150℃/ 300℃F) kom txo qis kev cuam tshuam
Shielding Gas:Argon lossis argon-helium sib tov; rov qab purging rau tag nrho - nkag welds
Kev xav txog kev kho cua sov:
| Alloy | Kev daws Annealing | Cov nag lossis daus Hardening | Ncej -Kev kho Weld |
|---|---|---|---|
| Kev 800 | 980 ° -1175 ° F (1800 ° F-2150 ° F) | Tsis siv tau | Tsis xav tau |
| lus 825 | 925 ° -1040 ° F (1700 ° F-1900 ° F) | Tsis raug | Tsis xav tau |
| lus 901 | 1090 ° -1150 ° F (2000 ° F-2100 ° F) | 760℃+ 705℃(1400℃F + 1300℃F) | Yuav tsum muaj zog |
| lus 925 | 980 ° -1040 ° F (1800 ° F-1900 ° F) | 760℃+ 620℃(1400℃F + 1150℃F) | Yuav tsum muaj zog |
| lus 926 | 1120 ° -1180 ° F (2050 ° F-2150 ° F) | Tsis siv tau | Tsis xav tau |
Tus nqi -Cov tswv yim Fabrication zoo:Txhawm rau txo cov nqi thaum tswj kom zoo:
Xaiv cov alloy tsim nyog:Tshaj -qhia siab dua- lub zog alloys ntxiv ob qho tib si khoom thiab cov nqi tsim khoom
Qhia meej annealed mob:Rau Incoloy 800 thiab 825, tus mob annealed muaj qhov siab tshaj plaws formability thiab qis tshaj machining nqi
Consolidate kev txiav txim:Cov khoom loj dua txo ib -unit machining thiab tuav nqi
Siv ze -net shapes:Rau cov khoom uas xav tau kev ua haujlwm tseem ceeb, xav txog kev qhia cov tuav nrog kev ua siab ntev dua lossis kev cai qhov ntev
4. Q: Hauv kev lag luam thiab kev siv tshwj xeeb dab tsi yog Incoloy 800, 825, 901, 925, thiab 926 npib tsib xee alloy tuav siv, thiab cov yam ntxwv ua tau zoo dab tsi tsav nqi - xaiv cov khoom siv zoo?
A:Incoloy nickel alloy tuav ua haujlwm tseem ceeb thoob plaws ntau qhov kev lag luam uas ua ke ntawm kev tiv thaiv corrosion, siab - qhov kub thiab txias, thiab tus nqi- kev ua tau zoo yog qhov tseem ceeb. Txhua lub alloy nyob hauv ib lub niche sib txawv, thiab xaiv cov qib uas tsim nyog tuaj yeem txo cov nqi ntawm cov khoom siv thaum tuav cov kev pabcuam txhim khu kev qha.
Petrochemical thiab Chemical Processing Industry:
Incoloy 825 bars:Qhov no yog cov khoom siv rau cov khoom siv tshuaj tua kab mob sulfuric acid, phosphoric acid, thiab lwm yam kev txo cov kua qaub. Cov ntawv thov muaj xws li lub twj tso kua mis, lub valve stems, thiab fasteners nyob rau hauv kev pab cuam acid. Lub alloy lub molybdenum thiab tooj liab ntxiv muab tshwj xeeb tiv thaiv kom txo tau qhov chaw ntawm tus nqi qis dua siab dua -nickel lwm txoj kev.
Incoloy 926 bars:Siv nyob rau hauv seawater cooling systems, desalination nroj tsuag, thiab chloride -muaj tshuaj ib puag ncig. Lub siab molybdenum thiab nitrogen cov ntsiab lus muab tshwj xeeb pitting thiab crevice corrosion kuj. Rau cov ntawv thov uas yuav tsum tau muaj kev tiv thaiv corrosion nyob rau hauv marine ib puag ncig, Incoloy 926 muab tus nqi - siv tau zoo rau cov nickel alloys kim dua.
Incoloy 800 bars:Ua hauj lwm nyob rau hauv siab -kub tshuaj reactors, tshav kub exchangers, thiab lub cub tawg Cheebtsam qhov twg oxidation thiab carburization kuj yuav tsum tau. Tus nqi alloy tus nqi-kev ua tau zoo ua rau nws txaus nyiam rau cov qauv tsim loj.
Kev lag luam roj thiab roj:
Incoloy 825 bars:Siv rau cov khoom siv downhole, cov khoom siv lub taub hau zoo, thiab cov kab ntws hauv qhov chaw corrosive. Lub alloy resists ob qho tib si txo acid corrosion thiab chloride kev nyuaj siab corrosion cracking.
Incoloy 925 bars:Tsim tshwj xeeb rau kev pabcuam roj qaub (ib puag ncig uas muaj hydrogen sulfide, H₂S). Cov nag lossis daus- mob hnyav muab lub zog siab uas yuav tsum tau muaj rau cov khoom ntim downhole, hangers, thiab cov cuab yeej ua tiav thaum ntsib NACE MR0175/ISO 15156 cov cai rau sulfide stress cracking (SSC) tsis kam. Rau cov roj thiab roj daim ntawv thov uas yuav tsum tau muaj zog thiab corrosion kuj, Incoloy 925 feem ntau sawv cev rau tus nqi ntau tshaj -kev xaiv zoo piv rau siab dua -nickel superalloys.
Incoloy 901 khoom:Siv nyob rau hauv siab - kub Cheebtsam xws li roj turbine cav qhov chaw, compressor Cheebtsam, thiab siab - kub fasteners nyob rau hauv cov roj thiab roj ua cov chaw.
Aerospace thiab Gas Turbine Kev Lag Luam:
Incoloy 901 khoom:Cov hlau no muaj qhov sib npaug ntawm qhov siab - qhov kub thiab txias ntawm lub zog ntawm tus nqi qis dua siab dua -nickel superalloys xws li Inconel 718. Cov ntawv thov suav nrog cov turbine discs, compressor casings, thiab siab - kub fasteners nyob rau hauv roj turbine cav. Rau aerospace Cheebtsam ua haujlwm ntawm qhov kub txog li 760℃(1400℃F), Incoloy 901 muab tus nqi- siv tau.
Kev kho cua sov thiab cua sov kev lag luam:
Incoloy 800 bars:Dav siv rau cov khoom siv hluav taws xob, cov raj xa hluav taws xob, thiab cov pob tawb kho cua sov. Cov hlau tsis kam rau oxidation, carburization, thiab thermal cycling muab kev pab cuam lub neej ntev hauv kev kho cua sov. Rau cov khoom siv hluav taws xob loj uas cov nqi khoom siv yog qhov tseem ceeb, Incoloy 800 muaj qhov sib npaug txaus nyiam ntawm kev ua haujlwm thiab tus nqi.
Marine thiab Desalination:
Incoloy 926 bars:Siv rau seawater piping, twj shafts, thiab valve Cheebtsam nyob rau hauv marine ib puag ncig thiab desalination nroj tsuag. Cov hlau alloy's PREN (Pitting Resistance Equivalent Number) tshaj 40 muab kev pabcuam txhim khu kev qha hauv siab -chloride ib puag ncig ntawm tus nqi qis dua titanium lossis siab dua -nickel alloys.
Kev tsim hluav taws xob:
Incoloy 800 bars:Siv nyob rau hauv superheater thiab reheater tubing, nrog rau lwm yam siab - kub Cheebtsam nyob rau hauv lub fais fab nroj tsuag. Cov hlau tsis kam ua rau siab -kub oxidation thiab creep deformation muab kev pabcuam txhim khu kev qha hauv cov ntawv siv hluav taws xob.
Tus nqi -Txoj kev xaiv zoo:
| Kev thov ib puag ncig | Pom zoo Alloy | Tus nqi -Txoj kev xaiv zoo |
|---|---|---|
| Siab -kub oxidation (txog 815 degree) | Kev 800 | Xav txog 800H rau creep kuj |
| Kev pabcuam sulfuric / phosphoric acid | lus 825 | Txheem xaiv; tus nqi- zoo rau kev pabcuam tshuaj |
| Cov roj qaub (H₂S) + lub zog siab | lus 925 | Tus nqi ntau dua - zoo dua Inconel 718 rau NACE daim ntawv thov |
| Gas turbine Cheebtsam (txog 760 degree) | lus 901 | Tus nqi - lwm txoj kev zoo rau siab dua -nickel superalloys |
| Seawater / chloride ib puag ncig | lus 926 | Tus nqi -tshwj xeeb zoo rau titanium lossis alloy C-276 |
Kev xaiv cov khoom siv rau kev siv nyiaj kom zoo:
Sib piv cov alloy rau ib puag ncig:Tshaj -qhia siab dua- alloys kev ua tau zoo ntxiv cov nqi tsis tsim nyog
Xav txog kev daws teeb meem-annealed mob:Rau Incoloy 800 thiab 825, qhov kev daws teeb meem -annealed mob feem ntau tsis tshua kim dua li cov khoom siv hnub nyoog
Ntsuas cov nqi fabrication:Tus nqi ntawm cov khoom siv ntau dua me ntsis yuav raug them los ntawm kev txhim kho machinability lossis weldability
Quantity consolidation:Kev txiav txim loj dua yuav txo tau ib qho nqi -unit
5. Q: Dab tsi yog qhov kev lees paub zoo thiab kev xav txog kev yuav khoom yog qhov tseem ceeb thaum nrhiav khoom qis - nqi Incoloy nickel alloy tuav rau ntau daim ntawv thov?
A:Kev muag khoom qis -nqi Incoloy nickel alloy tuav yuav tsum tau ua tib zoo saib xyuas kom zoo, kev tsim nyog ntawm tus neeg muag khoom, thiab kev coj ua kom ntseeg tau tias kev txuag nqi tsis cuam tshuam rau cov khoom ncaj ncees lossis kev ua haujlwm ntawm daim ntawv thov. Qhov tseem ceeb yog txhawm rau txheeb xyuas qhov muaj txiaj ntsig zoo thaum zam kev pheej hmoo cuam tshuam nrog cov khoom siv tsis zoo lossis cov khoom cuav.
Cov ntaub ntawv pov thawj - Thawj qhov tseem ceeb:Qhov kev pheej hmoo tseem ceeb tshaj plaws hauv kev nrhiav cov khoom qis - nqi npib tsib xee alloy bars yog tau txais cov khoom uas tsis ua raws li cov qib uas tau teev tseg los yog cov kev cai zoo. Cov kauj ruam pov thawj tseem ceeb suav nrog:
Positive Material Identification (PMI):X-ray fluorescence (XRF) los yog optical emission spectroscopy testing yuav tsum tau ua ntawm cov khoom siv los xyuas kom meej tias muaj pes tsawg leeg. Qhov no yog qhov tseem ceeb tshwj xeeb rau kev sib txawv ntawm cov qib zoo sib xws xws li Incoloy 800 thiab 825, lossis ntawm Incoloy 825 thiab qis dua -tus nqi stainless hlau.
Mill Test Report (MTRs):Thov thiab txheeb xyuas MTRs cov ntaub ntawv:
Tshuaj ntsuam xyuas lees paub UNS npe
Mechanical zog (tensile, yield, elongation)
Cov ntaub ntawv kho cua sov
Thaum tshav kub kub tooj rau traceability
Kev ntsuam xyuas ywj siab:Rau cov ntawv thov tseem ceeb, xav txog kev kuaj xyuas ywj pheej ntawm cov tshuaj muaj pes tsawg leeg thiab cov khoom siv tshuab.
Supplier Qualification:Thaum nrhiav - cov ntaub ntawv nqi qis, kev ntsuam xyuas tus neeg muag khoom tseem ceeb dua:
Reputation thiab track record:Tau qhov twg los ntawm cov neeg muag khoom nrog tsim lub koob npe nrov hauv kev lag luam nickel alloy. Cov neeg muag khoom tshiab lossis tsis paub txog muab cov nqi qis dua qhov nruab nrab ntawm kev ua lag luam tau lees paub kev tshuaj xyuas ntxiv.
Quality Management Systems:Nrhiav ISO 9001 ntawv pov thawj yam tsawg kawg nkaus. Rau kev siv aerospace, AS9100 ntawv pov thawj yog qhov tseem ceeb.
Mill qhov chaw transparency:Cov neeg muag khoom muaj npe nrov yuav txheeb xyuas qhov chaw zeb thawj thiab muab cov ntawv pov thawj zeb ncaj qha. Ceev faj ntawm cov neeg muag khoom uas tsis tuaj yeem muab cov ntaub ntawv no lossis muab cov ntawv pov thawj "tsev" yam tsis muaj mill traceability.
Tus Nqi Sib Tw-Txuag Sijhawm Nrog Tsawg Tsawg:
Standard qhov ntau thiab tsawg:Ordering standard bar diameters thiab lengths txo cov nqi piv rau kev cai qhov ntev
Quantity consolidation:Kev sib xyaw ntau yam kev xav tau rau hauv ib qho kev txiav txim ua tiav ntim nqi
Annealed mob:Tshwj xeeb annealed es tsis muaj hnub nyoog mob txo tus nqi rau Incoloy 800 thiab 825
Kev lag luam kam rau ua:Standard tolerances tsis tshua kim tshaj precision tolerances
Mill surplus:Qee lub sij hawm, mills muab cov khoom seem ntawm tus nqi txo nrog daim ntawv pov thawj tag nrho
Cov chij liab kom zam:
| Tus chij liab | Muaj peev xwm txaus ntshai |
|---|---|
| Tus nqi tseem ceeb hauv qab kev lag luam nruab nrab | Cov khoom siv tsis zoo, tawm ntawm - specification, lossis cov khoom cuav |
| Tsis muaj zeb traceability | Tsis muaj peev xwm txheeb xyuas cov khoom keeb kwm lossis qhov zoo |
| MTRs ploj lawm lossis tsis tiav | Tej zaum yuav qhia tau hais tias cov ntaub ntawv ntawm questionable keeb kwm |
| Lub sijhawm luv luv tsis txawv txav | Tej zaum yuav qhia txog cov khoom uas tsis paub keeb kwm lossis hloov qib |
| Tus neeg muab khoom siv tsis tuaj yeem ua qhov ntsuas PMI | Txwv tsis pub muaj peev xwm tswj tau zoo |
Tus nqi -Cov kev xaiv zoo rau cov qib hwm:
| Qib hwm | Tus nqi -Txoj kev xaiv zoo | Kev thov kom haum |
|---|---|---|
| Ib 625 | lus 825 | Txo cov kev pab cuam acid, nruab nrab kub |
| ib 718 | lus 901 | Gas turbine Cheebtsam, mus txog 650 degree |
| Alloy C-276 | lus 926 | Seawater thiab chloride ib puag ncig |
| Inconel 600 | Kev 800 | High -kev pab cuam oxidation kub |
Cov kev coj ua zoo tshaj plaws:
Qhia meej meej:Siv ob lub npe (piv txwv li, Incoloy 825) thiab UNS lub npe (xws li, N08825) kom tshem tawm qhov tsis meej pem
Yuav tsum muaj MTRs:Qhia meej tias cov ntawv xeem mills yuav tsum nrog rau txhua qhov khoom xa tuaj
Txhais cov qauv kev lees paub:Qhia meej meej hais txog PMI cov cai, qhov ntev ntawm qhov kam rau ua, thiab ib qho kev ntsuas ntxiv
Tsim cov npe khoom muag pom zoo:Khaws ib daim ntawv teev npe ntawm cov neeg muab khoom tsim nyog uas tau ua pov thawj zoo ib yam
Ua cov kev tshawb xyuas raws sij hawm:Rau cov neeg muab khoom tseem ceeb, kev tshuaj xyuas zoo ib ntus txheeb xyuas qhov ua tau raws li qhov tsis tu ncua
Cov ntaub ntawv xav tau:Rau txhua qhov kev txiav txim yuav khoom, qhia:
ASTM lossis AMS tus lej tshwj xeeb
Alloy designation (npe npe thiab UNS)
Qhov xwm txheej (annealed, stress-relieved, laus)
Dimensions thiab tolerances
Daim ntawv pov thawj (MTRs, conformance certificates)
Kev ntsuas PMI
Cov cim thiab traceability 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
Ua qhov ntsuas PMI ntawm tus qauv (lossis 100% rau cov ntawv thov tseem ceeb)
Tshawb xyuas qhov xwm txheej ntawm qhov tsis xws luag
Txheeb xyuas qhov ntev
Ntev -Tsev Nqi Vs. Tus Nqi Pib:Thaum ntsuas qis - nqi Incoloy bars, xav txog:
Tag nrho tus nqi ntawm cov tswv cuab:Tus nqi pib dua me ntsis rau cov ntaub ntawv pov thawj los ntawm qhov chaw muaj koob npe tuaj yeem raug lees paub los ntawm kev ua haujlwm ntev dua thiab txo qis kev pheej hmoo
Daim ntawv thov tseem ceeb:Rau cov ntawv uas tsis yog - cov ntawv thov tseem ceeb, tus qauv- cov ntaub ntawv qib nrog MTRs tau lees paub yuav txaus
Qhov tshwm sim ntawm kev ua tsis tiav:Hauv kev nyab xeeb- daim ntawv thov tseem ceeb (cov hlab ntsha siab, kev pabcuam roj qaub), tus nqi ntawm cov khoom siv tsis ua haujlwm ntau dua qhov kev txuag nyiaj pib
Los ntawm kev ua raws li cov kev yuav khoom thiab kev lees paub zoo no, cov neeg yuav khoom tuaj yeem ua tiav qhov txiaj ntsig -Incoloy nickel alloy tuav tau zoo thaum tuav cov khoom ncaj ncees uas xav tau rau kev pabcuam txhim khu kev qha thoob plaws ntau daim ntawv thov kev lag luam.
