I-Incoloy 825 (Nickel Alloy 825 / UNS N08825) Corrosion-Resistant Nickel Alloy Pipe and Tube - BLOG

Isingeniso: Ingxubevange Ethuthukisiwe Yezindawo Zamakhemikhali Eziqinile

Ikholomu 825, obeye aziwe njengoI-Nickel Alloy 825nomaI-UNS N08825, iwukusebenza{0}}okuphezului-nickel-iron-chromium alloyithuthukiswe ngeI-molybdenum, ithusi, ne-titanium.
Iklanyelwe ngokukhethekile ukusebenza ngaphansii-acidic, i-chloride, kanye{0}}nezinga eliphezulu lokugqwala kwezimo, okuyenza ibe enye yezinto eziguquguqukayo kakhulu kumakhemikhali, i-petrochemical, nezinhlelo zezinqubo zasolwandle.

I-alloy ibonisa inhlanganisela engavamile yezakhiwo:

Ukumelana okuhle kakhuluukunciphisa kanye ne-oxidizing acid(kuhlanganise ne-sulfuric ne-phosphoric acid).
Ukuzinza okuphezulu ngokumelenei-pitting, ukugqwala kwemifantu, kanye ne-stress{0}}corrosion cracking.
Ukusebenza okukhethekile ngemuvaukushisela noma ukuchayeka isikhathi esideemazingeni okushisa aphakeme.

Ukuthembeka kwayo kwenze i-Alloy 825 into ethandwayoizinto ezishintsha ukushisa, amacondenser, ama-evaporator, namapayipi asogwini, lapho ukugqwala nokukhathala kwemishini kuhlangana khona.

incoloy 825 nickel alloy 825 uns n08825 pipe and tube overview - octal pipe astm b423 asme sb423 incoloy 825 seamless pipe and tube stock - octal pipe

Ukubunjwa Kwamakhemikhali Nokuqina Kwesakhiwo

Ukusebenza kwe-Alloy 825 kuvela ekwakhiweni kwayo okulinganiselwe ngokucophelela:

Isici	Okuqukethwe (%)	Indima ye-Metallurgical
I-Nickel (Ni)	38.0 – 46.0	Ukumelana nokugqwala, ukuzinza kwesakhiwo
I-Chromium (Cr)	19.5 – 23.5	Ukumelana ne-oxidation, ukwakheka kwefilimu engenzi lutho
Insimbi (Fe)	Ibhalansi	I-matrix yesakhiwo sokuqina
I-Molybdenum (Mo)	2.5 – 3.5	Ukumelana nokunciphisa imidiya kanye nokugoba
Ithusi (Cu)	1.5 – 3.0	Ithuthukisa ukumelana ne-sulfuric ne-phosphoric acid
I-Titanium (Ti)	0.6 – 1.2	Izinza ngokumelene nokugqwala kwe-intergranular
Mn, Si, C, S	Ngaphansi noma kulingana no-1.0 / 0.5 / 0.05 / 0.03	Gcina ukuhlanzeka nokusebenza

Iukuqina kwe-titaniumiqinisekisa ukumelana nokuzwela kanye nokuhlaselwa kwe-intergranular ngemva kokushisela noma ukuchayeka ezindaweni zesevisi ye-540-870 degree.

Inqubo Yokukhiqiza Nokwelashwa Kokushisa

I-Incoloy 825 amapayipi namashubhu akhiqizwa ngokusebenzisaukunemba{0}}okuncibilika okulawulwayo, ukubunjwa, kanye nokuhlanganisa isixazululoukuqinisekisa i-microstructure efanayo kanye nokuziphatha kokugqwala okuphezulu.

Uhlolojikelele Lwenqubo Yokukhiqiza

Vacuum noma Argon Ukuncibilika- Isusa ukungcola futhi ivimbele ukuhlukaniswa ngesikhathi sokuhlanganiswa.
I-Hot Extrusion / Umdwebo Obandayo- Iqinisekisa ukulawula okuqinile kwe-dimensional kanye nokugxila.
Ukushisela okuzenzakalelayo kwe-Orbital(kwezinhlobo ezishiselwe) - Ikhiqiza ama-seams amahle, angena ngokugcwele.
Isixazululo se-Annealing (940-980 degree)- Incibilikisa ama-carbides futhi ibuyisele i-ductility.
Umoya Osheshayo noma Ukucisha Amanzi- Ivimbela{0}}imvula kanye nengcindezi eyinsalela.
Pickling kanye Passivation– Ibuyisela ifilimu ye-chromium-enothile nge-oxide ngaphezulu.
I-NDT yokugcina kanye nokuhlolwa kwe-Hydro- Iqinisekisa ubuqotho bangaphakathi kanye nomsindo we-weld.

Iqoqo ngalinye lokukhiqiza lihambisana neASTM B423 / B705 / ASME SB423futhi uyadlulaukuhlolwa kwe-ultrasonic, eddy current, kanye ne-hydrostaticnjenge-ASTM B829.
I-microstructure ewumphumela ingu-ai-uniform austenitic matrixngokuhlakazeka okuhle kwama-carbides kanye nezigaba ze-intermetallic, enikeza ukuzinza okuphakeme enkonzweni ye-acidic.

Ukumelana Nokugqwala kanye Nokuziphatha Kwesevisi

I-alloy 825 yakhelwe ukumelana nenqwaba yezindawo ezigqwalile zezimboni:

Imvelo	I-Corrosion Resistance Behaviour
I-sulfuric, i-Phosphoric, i-Nitric Acids	Ukusebenza okuhle kakhulu ngaphansi kwezimo zombili ze-oxidizing nezokunciphisa
Amanzi olwandle kanye ne-Chloride Solutions	Ukumelana okuqinile nokubhoboza, ukuqhekeka, kanye nengcindezi{0}}ukuqhekeka kokugqwala
Igesi Elimuncu / H₂S	I-Nickel ne-molybdenum ivimbela ukuqhekeka kwe-sulfide yokucindezeleka
I-Mixed Acid Environments	I-Copper ne-molybdenum ithuthukisa ukumelana nokunciphisa ama-asidi
Thumela-Ukuchayeka kweWeld	I-Titanium ivimbela ukuhlasela kwe-intergranular ngemuva kwemijikelezo yokushisela

Ingxubevange yakha aself-isendlalelo se-oxide esiziphilisayo, okuqinisekisa ukuvikelwa-kwesikhathi eside ngisho nangemva kokuhuzuka komshini noma ukuchayeka ngomjikelezo.
Lokhu kwenza i-Alloy 825 ilungeleamayunithi okubamba i-asidi{0}}, izintambo zokupholisa amanzi olwandle, amasistimu okulawula ukungcoliswa komhlaba, kanye nama-reactor amakhemikhali.

Ukusebenza Kwemishini Nobukhulu

Impahla	Imethrikhi	I-Imperial	Incazelo
Amandla Okuqina	Inkulu noma ilingana no-550 MPa	Kukhulu noma kulingana no-80 ksi	Isekela ingcindezi yangaphakathi ephezulu
Amandla Esivuno (0.2%)	Inkulu noma ilingana no-220 MPa	Kukhulu noma kulingana no-32 ksi	Igcina isimo ngaphansi kwengcindezi
Ukwelula	Kukhulu noma kulingana no-30%	Kukhulu noma kulingana no-30%	Iqinisekisa i-ductility kanye nekhono lokwakha
Ukuqina	Ngaphansi noma kulingana no-90 HRB	Ngaphansi noma kulingana no-90 HRB	Igcina ubuciko kanye nokuqina

Ububanzi beDimensional

Amapayipi Angenamthungo: 6 - 610 mm OD, 1 - 50 mm WT
Amapayipi ashiselwe: 25 – 1200 mm OD, 1.5 – 60 mm WT
Amashubhu (Instrumentation / Heat Exchanger): 6 – 76 mm OD, 0.8 – 10 mm WT
Ubude: Kufika ku-12 m, ku-SRL / DRL / osayizi bangokwezifiso

Ukuhlola, Ukunikeza Isitifiketi, Nokulawulwa Kwekhwalithi

Ipayipi ngalinye neshubhu lingena ohlelweni oluphelele lwe-QA ngaphambi kokuthunyelwa:

I-Hydrostatic / Eddy Current Test (ASTM B829)
Ukuhlola Okubonakalayo Nobukhulu
I-PMI (Positive Material Identification)
I-Intergranular Corrosion Test (I-ASTM G28 Indlela A)
Ukuhlola Okungakhethwa Kwenkampani Yesithathu-(SGS, TUV, BV)

Yonke imikhiqizo ihlinzekwaZU 10204 3.1 / 3.2 MTC, ukulandeleka okugcwele, kanye nemibhalo yekhwalithi ye-ISO 9001.

Izicelo zezimboni

Ukuguquguquka kwe-Alloy 825 kwenza ukusetshenziswa kwayo emikhakheni yezimboni ehlukahlukene:

Izitshalo Zamakhemikhali Nomanyolo- Ukuhwamuka kwe-Acid, imibhoshongo yokusabela, izikhuhla
Uwoyela Negesi Amasistimu Asogwini Lolwandle– Ukupholisa amanzi olwandle, kukhiqizwe-umjovo wamanzi
Ama-Heat Exchanger nama-Condensers- Izindawo zokugqwala okuphezulu ezindaweni zokucwenga nezitshalo zikagesi
Amasistimu Wokulawula Ukungcola- I-flue gas desulfurization, amayunithi okubuyisela i-asidi
Unjiniyela Wasolwandle- Izihibe zokupholisa kanye namapayipi okukhipha usawoti emanzini

Inhlanganisela yayoukugqwala ukuqina, ukushisela, nokuzinza kokushisaiqinisekisa isevisi enokwethenjelwa endaweni yamakhemikhali ebola kakhulu noma exubile.

Ukwethenjwa Kwempahla kanye Nokwesekwa Kwephrojekthi

I-Octal Pipe inikezaI-Incoloy 825 / Nickel Alloy 825 / UNS N08825amapayipi namashubhu ngokusebenzisa imizila yokukhiqiza eqinisekisiwe, imibhalo egcwele, nokuthobela iphrojekthi yamazwe ngamazwe.
Iqoqo ngalinye lokushisa liyalandeleka, lihlolwe, futhi lilethwe ngamadosimende okuhlola afanelekileAmaphrojekthi we-EPC namaphakheji wokufaneleka wokucwenga.

Ngobambiswano lwesikhathi eside-nokuhlangenwe nakho kokuhlela, i-Octal Pipe iqinisekisa ukulethwa okungaguquki nokusekelwa kobuchwephesheukusetshenziswa kwamakhemikhali, olwandle, kanye{0}}nokushisa okuphezuluemhlabeni wonke.

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