Kodi Kusiyana Pakati pa SS 329 ndi SS316 N'chiyani?

Kuyerekeza Kwatsatanetsatane ndi SAKYSTEEL

Zitsulo zosapanga dzimbiri ndizofunikira kwambiri m'mafakitale amakono, kuyambira mafakitale opanga mankhwala ndi zomangamanga za sitima mpaka makina amafuta ndi gasi. Pakati pa mitundu yambiri yomwe ilipo,SS 316ndiSS 329ndi zinthu ziwiri zomwe zimagwiritsidwa ntchito kwambiri zomwe nthawi zambiri zimayambitsa chisokonezo pakati pa ogula ndi mainjiniya. Zonsezi zimadziwika ndi ntchito yawo yabwino kwambirikukana dzimbirikoma zimasiyana kwambiri mukapangidwe kake kakang'ono, makhalidwe a makina, ndi magwiridwe antchito.

Nkhaniyi, yokonzedwa ndiSAKYSTEEL, kampani yogulitsa zitsulo zosapanga dzimbiri padziko lonse lapansi, ikufotokoza mwatsatanetsatane zakusiyana pakati pa SS 329 ndi SS316, zomwe zimaphatikizapo kapangidwe ka mankhwala awo, kukana dzimbiri, mphamvu, ndi ntchito zoyenera. Kumvetsetsa kusiyana kumeneku kumathandiza mainjiniya ndi akatswiri ogula zinthu kusankha zinthu zoyenera malo enaake ogwirira ntchito.

1. Chidule cha SS316 Chitsulo Chosapanga Dzira

SS316, yomwe imadziwikanso kutiAISI 316 or UNS S31600, ndichitsulo chosapanga dzimbiri cha austeniticNdi gawo la banja la 300-series ndipo limagwiritsidwa ntchito kwambiri chifukwa chakukana dzimbiri bwino, kupangika bwinondikusavuta kuwotcherera.

Chinthu chofunikira kwambiri pa SS316 ndimolybdenum (2–3%), zomwe zimathandiza kuti thupi lisamatsutsedzimbiri la dzenje ndi ming'alu, makamaka m'malo okhala ndi kloridi monga madzi a m'nyanja. SS316 nthawi zambiri imatchedwa “chitsulo chosapanga dzimbiri chapamwamba,” ngakhale kuti kukana kwake ku madzi amchere n’kochepa poyerekeza ndi magiredi awiri.

Sili ndi mphamvu ya maginito ikagwiritsidwa ntchito mopitirira muyeso ndipo limasunga kulimba ngakhale kutentha kwambiri, zomwe zimapangitsa kuti likhale lodalirika komanso logwiritsidwa ntchito popanga mankhwala, chakudya, ndi mafakitale a m'nyanja.

2. Chidule cha SS329 Chitsulo Chosapanga Dzira

SS329kapenaUNS S32900, ndichitsulo chosapanga dzimbiri, kutanthauza kuti ili ndi chisakanizo chokwanira chaaustenite (γ)ndiferrite (α)magawo awiriwa. Kapangidwe ka magawo awirika kamapatsa SS329 kuphatikiza kwapadera kwamphamvu zambirindikukana dzimbiri bwinomakamaka motsutsana ndikuphwanya kwa dzimbiri kwa chloride stress (SCC).

Ndi chromium yochuluka (≈25%) ndi nickel yotsika (≈4%) ​​poyerekeza ndi SS316, SS329 imatha kugwira ntchito m'malo omwe zitsulo zosapanga dzimbiri za austenitic monga 316L zingalephereke.

Amagwiritsidwa ntchito kwambiri munsanja za m'mphepete mwa nyanja, mafakitale ochotsa mchere m'madzi, zosinthira kutentha, ndi mapaipi amphamvu kwambiri, komwe mphamvu ya makina ndi magwiridwe antchito a dzimbiri ndizofunikira kwambiri.

3. Kusiyana kwa Kapangidwe ka Mankhwala

Kulinganiza kwa mankhwala kumafotokoza momwe chitsulo chilichonse chimagwirira ntchito. Pansipa pali kugawanika kosavuta (kopanda tebulo, monga momwe zapemphedwera):

• Kapangidwe ka SS316:16–18% Chromium, 10–14% Nickel, 2–3% Molybdenum, yokhala ndi Manganese, Silicon, ndi Carbon pang'ono (<0.08%).

• Kapangidwe ka SS329:23–28% Chromium, 2.5–5% Nikel, mpaka 1.5% Molybdenum, ndi kachidutswa kakang'ono ka Nayitrogeni kuti ikhazikitse kapangidwe ka duplex.

Mfundo Zofunika Kuziganizira:

• SS329 ili ndichromium yochuluka kwambirindinikeli wochepa, zomwe zimaipatsa chitetezo champhamvu cha dzimbiri komanso mphamvu zambiri zokolola.

• SS316, yokhala ndi nickel ndi molybdenum yambiri, ndi yokwera kwambirichopindika komanso chopangika, yoyenera mawonekedwe ovuta komanso opukutidwa bwino.

4. Kuyerekeza kwa kapangidwe ka zinthu zazing'ono

Kusiyana kwakukulu pakati paSS329 ndi SS316zili m'mitima yawokapangidwe kake kakang'ono:

• SS316ndi kwathunthuaustenitic, kutanthauza kuti kapangidwe kake ka kristalo kali ndi makona ozungulira (FCC). Izi zimapatsa kulimba kwake kwabwino, mphamvu zake zosakhala zamaginito, komanso kuthekera kwake kusunthika bwino.

• SS329 is duplex, yopangidwa ndi pafupifupi 50% ya ferrite ndi 50% ya austenite. Kapangidwe ka ferritic (kiyubiki yozungulira thupi) imawonjezeramphamvu ndi kukana kwa chloride, pomwe gawo la austenitic limasungakusinthasintha.

Chifukwa cha ichi, SS329 ili pafupi kutha.mphamvu kawirimonga SS316 koma zosavuta kupanga ndi makina.

5. Katundu wa Makina

Kusiyana kwa makina n'kofunika kwambiri:

• Mphamvu Yopereka:SS316 ≈ 205 MPa, SS329 ≈ 450 MPa

• Kulimba kwamakokedwe:SS316 ≈ 515 MPa, SS329 ≈ 620 MPa

• Kutalika:SS316 ≈ 40%, SS329 ≈ 25%

Izi zikutanthauzaSS329imapereka mphamvu yonyamula katundu wambiri komanso kukana kutopa, zomwe zimapangitsa kuti ikhale yabwino kwambirizombo zopanikizika ndi zida za m'mphepete mwa nyanja. SS316Kumbali inayi, imapereka kusinthasintha kwakukulu, mawonekedwe abwino a pamwamba, komanso ntchito yosavuta yozizira yokongoletsera kapena yochepetsera kupsinjika.

6. Kuyerekeza Kukana Kudzimbiri

Mitundu yonse iwiriyi ndi yolimba chifukwa cha dzimbiri, komamalo osiyanasiyana:

a) Kutupa kwa Chloride

• SS316 imatha kusweka ikakumana ndi chloride kwa nthawi yayitali pa kutentha kwambiri.

• SS329 imalimbana ndi kusweka kwa dzimbiri chifukwa cha chloride stress, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchitokugwiritsa ntchito madzi a m'nyanja ndi madzi amchere.

b) Kutupa kwa Mpanda ndi Mng'alu

• Molybdenum ya SS316 imalimbitsa kukana kwa dzenje, koma mpaka kufika pamlingo wochepa wa chloride (≈300 ppm).

• SS329 imagwira ntchito bwino ngakhale ikachuluka kwambiri chifukwa cha kuchuluka kwa chloride ndi duplex phase.

c) Kukana kwa asidi

• SS316 ndi yabwino kwambiri pa ma acid monga acetic, phosphoric, ndi sulfuric (dilute).

• SS329 imasamalira bwino ma asidi owonjezera okosijeni ndi ma alkali, makamaka m'malo osakanikirana a chloride-acid.

d) Kutupa kwa Zidutswa za Intergranular

• Zonsezi zimakhala zolimba ngati zakonzedwa bwino. Komabe, SS329 iyenera kukonzedwa mosamala kuti isawonongekemapangidwe a gawo la sigmazomwe zingachepetse kulimba.

Mwachidule:
Kwakugwiritsa ntchito mankhwala m'madzi kapena m'mankhwala, SS316 imagwira ntchito bwino pamlingo wochepa wa chloride, pomweSS329 ndiye chisankho chabwino kwambirichifukwa chakumtunda kapena kuchotsa mchere m'madzimalo ozungulira.

7. Kuwotcherera ndi Kupanga

Kuwotcherera SS316 n'kosavuta kugwiritsa ntchito njira zonse zachikhalidwe (TIG, MIG, SMAW), ndipo chithandizo cha kutentha pambuyo pa kuwotcherera sichimafunikira kawirikawiri.

SS329, pokhala duplex, imafunakuwongolera kutentha molondola kwambiriPa nthawi yowotcherera kuti pakhale bwino gawo lake. Kutentha kwambiri kungayambitse magawo ofooka omwe amachepetsa kukana dzimbiri. Kugwiritsa ntchito zitsulo zofanana ndi zodzaza ndi mpweya woteteza bwino ndikofunikira kwambiri.

Ponena zakupanga ndi kukonza:

• SS316 ndi yosavuta kupindika, kupotoza, ndi kupukuta.

• Mphamvu yayikulu ya SS329 imapangitsa kuti zikhale zovuta kupanga koma zoyenera pa zomangamanga zolimba.

8. Kukana Kutentha

SS316 imasunga mphamvu zake komanso kukana dzimbiri mpaka pafupifupi870°C (1600°F)mu utumiki wopitilira.

Ngakhale kuti SS329 ndi yolimba kutentha kwa chipinda, imatha kusweka ngati itayikidwa pamalo otentha kwambiri kwa nthawi yayitali (kupitirira 300°C). Komabe, imagwira ntchito bwino kwambirikutentha kwapakatimalo omwe ali ndi mphamvu ya makina komanso chloride.

Chifukwa chake, SS316 ndi yabwino kwambiri pautumiki wotentha kwambiri, pomwe SS329 ndi yabwino kwambirimalo opsinjika kwambiri, kutentha kwapakati, komanso owononga.

9. Mtengo ndi Kupezeka Kwake

Kawirikawiri,SS329 ndi yokwera mtengo kwambirikuposa SS316 chifukwa cha njira yake yovuta yopangira komanso zofunikira zowongolera kutentha. Komabe, imaperekanthawi yayitali yogwira ntchito komanso ndalama zochepa zokonzeram'malo ovuta, zomwe zimapangitsa kuti ikhale yotsika mtengo pakapita nthawi.

SS316 imapezeka kwambiri padziko lonse lapansi, zomwe zimapangitsa kuti ikhalekusankha kokhazikika komanso kotsika mtengokuti zigwiritsidwe ntchito pa ntchito zonse.

Ngati polojekiti yanu ikukhudzamapaipi amadzi a m'nyanja, matanki a mankhwala, kapena malo osungira mafuta, kuyika ndalama mu SS329 kudzapulumutsa ndalama zokonzera mtsogolo.zida za kukhitchini, mapanelo omanga nyumba, kapena kugwiritsa ntchito pang'ono zinthu za m'nyanja, SS316 ikadali njira yothandiza komanso yotsika mtengo.

10. Kugwiritsa ntchito kwa SS316

SS316 imapezeka pafupifupi m'mafakitale onse chifukwa cha kulimba kwake ndi dzimbiri, kulimba kwake, komanso kukongola kwake. Ntchito zodziwika bwino zimaphatikizapo:

• Zomangira za m'madzi ndi zomangira

• Zipangizo za chakudya ndi zakumwa

• Njira zopangira mankhwala ndi mankhwala

• Zosinthira kutentha ndi zotulutsa mpweya

• Makoma ndi zipilala za zomangamanga

• Zida zachipatala ndi zida zochitira opaleshoni

Kukongola kwake komanso mawonekedwe ake zimapangitsa kuti ikhale yotchuka kwambiri m'mafakitale omwe amafuna zonse ziwirintchito ndi mawonekedwe.

11. Kugwiritsa ntchito kwa SS329

Chifukwa cha mphamvu zake komanso kukana dzimbiri m'mikhalidwe yovuta,SS329imakondedwa mu:

• Mapaipi amafuta ndi gasi omwe ali m'mphepete mwa nyanja

• Zomera zochotsa mchere m'madzi ndi machitidwe a madzi a m'nyanja

• Zogaya za pulp ndi mapepala

• Matanki opangira mankhwala

• Zosinthira kutentha zomwe zimakhudzidwa ndi njira za chloride

• Zigawo za kapangidwe kake m'mapulatifomu am'madzi

Kapangidwe kake ka duplex kamatsimikiziramphamvu yayikulu yamakinangakhale pansi pa katundu wamphamvu komanso kusinthasintha kwa kuthamanga kwa magazi.

12. Chidule cha Magwiridwe Antchito

SS316:

• Mtundu: Austenitic

• Mphamvu: Pakati

• Kukana Kudzimbiritsa: Zabwino Kwambiri (ma chloride apakati)

• Kukhazikika: Zabwino kwambiri

• Kuwotcherera: Zosavuta

• Kagwiritsidwe Ntchito: Chakudya, mankhwala, zomangamanga, za m'nyanja zofatsa

SS329:

• Mtundu: Duplex

• Mphamvu: Yapamwamba kwambiri

• Kukana Kudzimbiritsa: Yapamwamba (ma chloride ambiri, madzi a m'nyanja)

• Kupangika: Pakati

• Kuwotcherera: Kumafuna kulamulira

• Kagwiritsidwe Ntchito: Mafuta ndi gasi, kunyanja, kuchotsa mchere m'madzi, mafakitale

Mwachidule, kusiyana kwakukulu pakati pa SS316 ndi SS329 ndikulinganiza pakati pa mphamvu ndi kukana dzimbiri. SS329 imapereka kukana kwakukulu kwa makina ndi kloridi, pomwe SS316 imapereka kukhazikika bwino komanso kukhazikika kwa kutentha.

13. Kusankha Pakati pa SS329 ndi SS316

Kusankha chitsulo chosapanga dzimbiri choyenera kumadalira momwe zinthu zimagwirira ntchito:

• Ngati mphamvu ndi kukana kwa chlorine ndizofunikira kwambiri, sankhaniSS329.

• Ngati kupanga mosavuta komanso kutsirizika kwa pamwamba ndikofunikira kwambiri, sankhaniSS316.

• Kwazomera za mankhwala, makina ochotsera mchere m'madzi, kapena kukhudzana ndi madzi a m'nyanja, SS329 ndi yabwino kwambiri.

• Kwaziwiya za kukhitchini, zida zomangira, kapena njira za mankhwala zopanda chloride wambiri, SS316 ndi yokwanira.

Kugwira ntchito ndi wogulitsa wodziwa bwino ntchito kumathandiza kuonetsetsa kuti zinthuzo zasankhidwa bwino, njira zowotcherera zolondola, komanso kuti zinthuzo zikhale zabwino nthawi zonse.

14. Chifukwa Chosankha SAKYSTEL pa Duplex ndi Austenitic Stainless Steels

Monga wopanga komanso wogulitsa zitsulo zosapanga dzimbiri wodziwa bwino ntchito,SAKYSTEELamapereka zonse ziwiriSS316ndiSS329mu mawonekedwe monga mipiringidzo yozungulira, mbale, mapepala, ndi machubu.

Timapereka:

• Zipangizo zovomerezeka (EN 10204 3.1 / 3.2)

• Kutsatira malamulo a NACE MR0175 ndi ISO 15156 pa ntchito ya mafuta ndi gasi

• Machining yolondola komanso kutalika kosinthidwa

• Kutumiza mwachangu padziko lonse lapansi ndi chithandizo chaukadaulo

Zogulitsa zathu zimagwiritsidwa ntchito kwambiri m'makampani a za m'madzi, mafuta, ndi zomangamanga ku Europe, Middle East, ndi Southeast Asia.

Pa ntchito iliyonse,SAKYSTEELkuonetsetsa kuti zinthuzo zikuyang'aniridwa bwino, kuti zinthuzo zitsatidwe bwino, komanso kuti zinthuzo zitumizidwe kunja.

15. Maganizo Omaliza

Kusiyana pakati paSS 329 ndi SS316imafalikira kutali kuposa chemistry - imafotokoza zomwe imachitamagwiridwe antchito, kulimba, ndi malo ogwiritsira ntchito. SS316 ikadali ntchito yogwiritsidwa ntchito ndi makampani popanga zinthu zosagwira dzimbiri komanso zopangidwa mosavuta, pomwe SS329 ikuyimira mphamvu ndi kudalirika kwapamwamba kwambiri m'malo ovuta.

Kumvetsetsa kusiyana kumeneku kumathandiza mainjiniya ndi ogula kusankha aloyi yoyenera ntchito yoyenera — kuchepetsa kukonza, kuwonjezera moyo wautali, ndikuwonetsetsa kuti zinthu zili bwino pakakhala zovuta.

Mukagula zinthu zosapanga dzimbiri, sankhani ogulitsa omwe ali ndi luso lodziwika bwino komanso chitsimikizo cha khalidwe.SAKYSTEELkuti mupeze zitsulo zosapanga dzimbiri zosasinthasintha, zogwira ntchito bwino zomwe zimakwaniritsa miyezo yapadziko lonse lapansi komanso zopitilira zomwe mumayembekezera.