Iyini i-Austenitic Stainless Steel?

Insimbi engagqwali yase-Austenitic ingenye yezinhlobo zensimbi engagqwali ezisetshenziswa kakhulu ezimbonini ngenxa yokumelana kwayo nokugqwala okuhle kakhulu, ukwakheka kahle, kanye nezakhiwo zayo ezingezona ezikagesi. Kungakhathaliseki ukuthi uhilelekile ekwakheni, ekucubunguleni ukudla, ekukhiqizeni amakhemikhali, noma ekukhiqizeni imishini yezokwelapha, kungenzeka ukuthi uke wahlangana nensimbi engagqwali yase-austenitic ngaphandle kokuqaphela.

Kulesi sihloko esibanzi, sizochazaiyini insimbi engagqwali ye-austenitic, izici zayo ezibalulekile, ukuthi iqhathaniswa kanjani nezinye izinhlobo zensimbi engagqwali, kanye nokusetshenziswa kwayo. Uma ungumthengi wezinto ezibonakalayo noma unjiniyela ofuna ukucaca ekukhetheni insimbi efanele, lo mhlahlandlela uvela kui-sakysteelkuzokusiza ukuthi wenze izinqumo ezinolwazi.

1. Incazelo: Iyini i-Austenitic Stainless Steel?

Insimbi engagqwali yase-Austenitic iyisigaba sensimbi engagqwali esichazwa yi-isakhiwo sekristalu se-cubic esigxile ebusweni (FCC), eyaziwa ngokuthiisigaba se-austeniteLesi sakhiwo sizinzile kuwo wonke amazinga okushisa futhi sigcinwa ngisho nangemva kokupholisa kusuka emazingeni okushisa aphezulu.

Izinsimbi ze-Austenitic ezingagqwaliokungeyona i-magnetic esimweni esifakwe i-anneal, babei-chromium ephezulu (16–26%)futhii-nickel (6–22%)okuqukethwe, kanye nokunikezwaukumelana nokugqwala okuphezulu, ikakhulukazi uma kuqhathaniswa neminye imindeni yensimbi engagqwali.

2. Ukwakheka Kwamakhemikhali

Izakhiwo eziyingqayizivele zensimbi engagqwali ye-austenitic zivela ekubunjweni kwayo ngamakhemikhali:

• I-Chromium: Inikeza ukumelana nokugqwala futhi yakha ungqimba lwe-oxide oluvikelayo phezu komhlaba.

• I-Nickel: Kuqinisa isakhiwo se-austenitic futhi kuthuthukisa ukuguquguquka.

• I-Molybdenum (ongakukhetha): Kuthuthukisa ukumelana nokugqwala kwemigodi kanye nemifantu ezindaweni ze-chloride.

• I-nitrogen: Kuthuthukisa amandla nokumelana nokugqwala.

• Ikhabhoni (ephansi kakhulu): Kulawulwa ukuze kugwenywe ukuna kwe-carbide nokugcina ukumelana nokugqwala.

Amabanga avamile njengensimbi engagqwali engu-304 kanye ne-316 ayingxenye yaleli qembu.

3. Izici Eziyinhloko Zensimbi Engagqwali Yase-Austenitic

1. Ukumelana Okuhle Kakhulu Kokugqwala

Izinsimbi ezingagqwali ze-Austenitic zimelana kakhulu nezinhlobo ezahlukene zezindawo ezigqwalayo. Lokhu kufaka phakathi ukugqwala komoya, ukuchayeka ekudleni naseziphuzweni, kanye namakhemikhali amnene kuya kwaphakathi anolaka.

2. Izakhiwo Ezingezona EzikaMagnetic

Esimweni esifakwe insimbi engagqwali e-austenitic ngokuvamile ayisebenzi kumagnetic. Kodwa-ke, ukusebenza okubandayo kungaletha amandla okuzibamba amancane ngenxa yokwakheka kwe-martensite.

3. Ukushibilika Okuhle

Lezi zinsimbi zingashintshwa kalula kusetshenziswa amasu amaningi okushintshwa avamile. Kungadingeka ukunakekelwa okukhethekile ukuze kugwenywe ukuna kwe-carbide kwezinye izinhlobo.

4. Ukuqina Okuphezulu Nokuqina

Amagreyidi e-Austenitic angadonswa, agotshwe, futhi akhiwe abe yizimo ezahlukahlukene ngaphandle kokuqhekeka. Agcina ukuqina kokubili emazingeni okushisa aphezulu naphansi.

5. Akukho Ukuqina Kokushisa

Ngokungafani nezinsimbi ezingagqwali ze-martensitic, amazinga e-austenitic awakwazi ukuqina ngokwelashwa ngokushisa. Ngokuvamile aqiniswa ngokusebenza okubandayo.

4. Amabanga Avamile Ensimbi Engagqwali Yase-Austenitic

• 304 (UNS S30400)
  Insimbi engagqwali esetshenziswa kakhulu. Ukumelana nokugqwala okuhle kakhulu, ukwakheka okuhle, kufanelekile ezimbonini eziningi.

• 316 (UNS S31600)
  Iqukethe i-molybdenum yokuqinisa ukumelana nokugqwala, ikakhulukazi ezindaweni ze-chloride ezifana nokusetshenziswa kwasolwandle noma ogwini.

• 310 (UNS S31000)
  Ukumelana nokushisa okuphezulu, okusetshenziswa ezingxenyeni zesithando somlilo kanye nezishintshi zokushisa.

• 321 (UNS S32100)
  Iqiniswe nge-titanium, ilungele ukusetshenziswa kwezinga lokushisa eliphezulu lapho imvula ye-carbide iyinkinga.

Ngayinye yalezi zinhlobo itholakala ngezindlela ezahlukene ezifana namashidi, amapayipi, imigoqo, kanye nokufakwa, futhi inganikezwa yii-sakysteelngezidingo zakho zephrojekthi.

5. Ukusetshenziswa kwe-Austenitic Stainless Steel

Ngenxa yezakhiwo zazo ezilinganiselayo, izinsimbi ezingenasici ze-austenitic zisetshenziswa emikhakheni ehlukahlukene:

1. Imboni Yokudla Neziphuzo

I-304 ne-316 zivame ukusetshenziswa emishinini yokucubungula ukudla, amathangi, kanye nezitsha ngenxa yokuhlanzeka kwazo kanye nokumelana nokugqwala.

2. Imboni Yamakhemikhali Neyemithi

I-316L ithandwa kakhulu kuma-reactor, amapayipi, nama-valve abekwe kumakhemikhali ngenxa yokumelana kwayo nama-chloride.

3. Amadivayisi Ezokwelapha Nokuhlinza

Ngenxa yokuhlanzeka kwazo kanye nokuhambisana kwazo nezinto eziphilayo, izinsimbi ezingagqwali ezisetshenziswayo zisetshenziselwa amathuluzi okuhlinza, izifakelo, kanye nemishini yasesibhedlela.

4. Ukwakhiwa Kwezakhiwo Nokwakha

Isetshenziswa ekumbozweni, ezisekelweni, emaceleni odonga, nasemabhulohweni ngenxa yokubukeka kwayo okuhle kanye nokumelana nokugqwala kwemvelo.

5. Izimoto kanye Nezokuthutha

Izinhlelo zokukhipha ugesi, ukusika, kanye nezingxenye zesakhiwo ziyazuza ekuhlanganisweni kwamandla kanye nokumelana nokugqwala.

6. Ama-Heat Exchanger nama-Boiler

Amabanga aphezulu afana no-310 asetshenziswa ezindaweni ezishisa kakhulu ngenxa yokumelana kwawo nokushiswa kwe-oxidation.

6. Indlela i-Austenitic Eqhathaniswa Ngayo Nezinye Izinsimbi Ezingagqwali