Mbiri ya Alloy ndi Ntchito Yamafakitale
Inconel 625, yomwe imadziwikanso kuti Nickel Alloy 625 kapena UNS N06625, ndi faifi yolimba-solution-strengthened nickel{4}}chromium-molybdenum-niobium alloy yopangidwira maopareshoni pomwe dzimbiri ndi kutentha zimayendera limodzi. Imasunga mphamvu zapadera, kukana kukwawa, komanso kukhazikika kwa okosijeni kuchokera ku cryogenic mpaka 1000 digiri (1832 digiri F).
Gululi limagwiritsidwa ntchito kwambiri m'zida zam'madzi, makina opangira ma chemical, mayunitsi oletsa kuwononga chilengedwe, ma reactor a nyukiliya, ndi ma injini a jet exhaust assemblies-mapulogalamu omwe ukadaulo ndi kuwononga dzimbiri ziyenera kugwira ntchito limodzi. Kuchuluka kwake kwa Ni-Cr-Mo-Nb kumapanga filimu yodzipangira-healing oxide ndipo imachepetsa kuukira komwe kumachitika ngakhale mutakhala acidic ndi chloride-olemera.
Mapangidwe a Chemical ndi Makhalidwe a Metallurgical
| Chinthu | % Mtundu | Ntchito |
|---|---|---|
| Nickel (Ndi) | Kuposa kapena kufanana ndi 58.0 | Base matrix; dzimbiri ndi kukhazikika kwa kutentha |
| Chromium (Cr) | 20.0–23.0 | Amapanga passive oxide kuwongolera okosijeni |
| Molybdenum (Mo) | 8.0–10.0 | Imalimbana ndi dzimbiri ndi ming'alu |
| Niobium (Cb + Ta) | 3.15–4.15 | Imalimbitsa njira yothetsera; amalepheretsa kukwawa deformation |
| Chitsulo (Fe) | Zocheperapo kapena zofanana ndi 5.0 | Kupititsa patsogolo mawonekedwe opangira |
| Mpweya (C) | Ochepera kapena ofanana ndi 0.10 | Amawongolera mapangidwe a carbide |
| Mn/Si/S | Ochepera kapena ofanana ndi 0.5 / 0.5 / 0.015 | Pitirizani kukhala aukhondo ndi khalidwe la weld |
Kuphatikizika kwa molybdenum ndi niobium kumapangitsa kuti pakhale mphamvu zambiri popanda kuuma mvula, zomwe zimapangitsa kuti zikhale zosavuta kupanga komanso kugwira ntchito mokhazikika pakatentha-nthawi yayitali. Kapangidwe kakang'ono kameneka kamakhala ndi njere zabwino ndipo kumalepheretsa kuti njere-zitseke malire akawotcherera kapena kuwotcherera.
Kudalirika Kwamakina Pansi pa Kutentha ndi Kupsinjika
| Katundu | Metric (mphindi) | Imperial (mphindi) | Kufotokozera |
|---|---|---|---|
| Kulimba kwamakokedwe | 827 pa | 120 nsi | Amasunga umphumphu mpaka madigiri 870 |
| Mphamvu Zokolola (0.2%) | 414 MPa | 60 ksi | Imakana deformation pansi pa katundu |
| Elongation | Kuposa kapena kufanana ndi 30% | Kuposa kapena kufanana ndi 30% | Kuwonekera kwabwino kwambiri- kwa positi |
| Kuuma | Ochepera kapena ofanana ndi 95 HRB | Ochepera kapena ofanana ndi 95 HRB | Amapereka machinability ndi formability |
Munthawi yautumiki wama cyclic, Inconel 625 imasungabe mphamvu yakutopa komanso kukhazikika kwapang'onopang'ono ndikutayika kopanda pake pakuwongolera okosijeni.
Njira Yopangira ndi Kusamalira Kutentha
Mipope ndi machubu amapangidwa pogwiritsa ntchito kutulutsa kotentha kapena kujambula kozizira ndipo kenako yankho limayikidwa pa 1090-1150 digiri (1995-2100 digiri F) ndikutsatiridwa ndikuzimitsa mwachangu kuti abwezeretse kukana kwa dzimbiri. Mitundu yowotcherera imapangidwa ndi TIG kapena njira ya plasma pansi pa chitetezo cha inert.
Kupanga molondola komanso kuzizira kumapangitsa kuti khoma likhale lofanana, kwinaku kunyamula ndi kuyatsa kowala kumatsegulanso filimu yoteteza ya Cr₂O₃. Kupanga ndi kuyendera kumayenderanaASTM B444, B705, ndi B704miyezo.
Kukaniza Corrosion kudutsa Media
The alloy's dual action-nickel-filimu yachromium oxide ya oxidizing condition ndi molybdenum-niobium reinforcement pofuna kuchepetsa chilengedwe{3}}imapangitsa kuti pakhale kukhazikika kwamankhwala:
- Madzi a m'nyanja ndi kloridi:Imalimbana ndi ming'alu, mikwingwirima, komanso kupsinjika-kuwonongeka kwa dzimbiri.
- Oxidizing acid (nitric, chromic):Chromium imateteza kumamatira kwa oxide pa kutentha.
- Kuchepetsa zidulo (hydrochloric, phosphoric):Molybdenum imalepheretsa kuukira komweko.
- Mpweya wowawasa (H₂S):Kukhazikika polimbana ndi kupsinjika kwa sulfide pakugwiritsa ntchito mafuta ndi gasi.
- -kutentha kwambiri:Kusagonjetsedwa ndi makulitsidwe ndi kutayika kwachitsulo ku madigiri a 1000.
Dimensional Range ndi Product Supply
| Mtundu | Kunja Diameter | Makulidwe a Khoma | Utali | Kufotokozera |
|---|---|---|---|---|
| Chitoliro Chopanda Msoko | 6-610 mm | 1-50 mm | Mpaka 12 m | ASTM B444 / ASME SB444 |
| Welded Chitoliro | 25-1200 mm | 1.5-60 mm | Mpaka 12 m | ASTM B705 / ASME SB705 |
| Tube (Kusinthanitsa Kutentha / Chida) | 6-76 mm | 0.8-10 mm | Coil / Wowongoka | ASTM B704 / ASME SB704 |
Kutha-kutha kupirira kumapezeka pazida ndi kutentha-zophatikiza zosinthana zomwe zimafuna kukwanira bwino komanso kumalizidwa kwapamwamba.
Kuyesa, Certification, ndi Kutsimikizira Ubwino
Zogulitsa zonse zimayesedwa paChithunzi cha ASTM B829chifukwa-chosawononga umphumphu ndi kulondola kwenikweni.
Kuwunika pafupipafupi kumaphatikizapo kuyezetsa kwa hydrostatic kapena akupanga, kutsimikizira kwa PMI pazomwe zili ndi faifi tambala, komanso kuyesa kwa corrosion intergranular (ASTM G28 Method A/C).
Octal Pipe amapereka zipangizo ndiEN 10204 3.1 / 3.2 MTC, kufufuza kwathunthu, ndi njira zowunika-zipani zachitatu (BV, SGS, TUV).
Kukhazikitsa kwa Industrial ndi Thandizo la Ntchito
Inconel 625 imagwiritsa ntchito zida zofunika kwambiri kuphatikiza mapaipi akunyanja m'madzi a chloride, zida zotayira mumlengalenga, zombo zokonzanso nyukiliya, malo ochotsa mchere, ndi zotsukira zowononga.
Octal Pipe imapereka mayankho opangidwa mwaluso okhala ndi ziyeneretso zowotcherera, kulumikizana kwa NDE, ndi zolemba zaukadaulo zopangidwira EPC ndi ma projekiti amphamvu. Kuwongolera kosasinthasintha kumawonetsetsa kubwereza kwa makina ndi dzimbiri mugulu lililonse la kutentha.
FAQ
Q1: Ndi mulingo uti womwe ndiyenera kutchula pa chitoliro cha Alloy 625 vs chubu?
Q2: Kodi UNS N06625 (Aloyi 625) ingagwiritsidwe ntchito muutumiki wowawasa (H2S)?
Q3: Kodi ndipemphe chiyani kuti nditsimikizire mtundu wa Inconel 625 musanagule?
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