304 chitsulo chosapanga dzimbiri ndiye chitsulo chosapanga dzimbiri chomwe chimagwiritsidwa ntchito kwambiri ndi chromium-nickel. Monga chitsulo chogwiritsidwa ntchito kwambiri, chimakhala ndi kukana bwino kwa dzimbiri, kukana kutentha, kutsika kwamphamvu kwa kutentha ndi mphamvu zamakina; ili ndi ntchito yabwino yotentha monga kupondaponda ndi kupindika, ndipo ilibe chinthu chowumitsa kutentha (kutentha kwa ntchito -196 ℃～800 ℃).

Chitsulo chosapanga dzimbiriInox 304(AISI 304) ndi mtundu womwe umagwiritsidwa ntchito kwambiri ndi zitsulo zosapanga dzimbiri chifukwa cha makina ake okhazikika komanso mankhwala.

Nazi zizindikiro zake zazikulu za inox 304:

1. Kukaniza kwa Corrosion

High kukana dzimbirim'malo osiyanasiyana, makamaka mumlengalenga komanso kukhudzana ndi mankhwala owononga monga ma asidi ndi ma chloride.

Imagwira bwino m'malo omwe ali ndi chinyezi kapena chinyezi.

2. Kupanga

Muli pafupifupi18% chromiumndi8% ya nickel, nthawi zambiri amatchedwa18/8 chitsulo chosapanga dzimbiri.

Zimaphatikizansopo zochepa zampweya (max 0.08%), manganese,ndisilicon.

3. Mechanical Properties

Kulimba kwamakokedwe: kuzungulira515 MPa (75 ksi).

Zokolola mphamvu: kuzungulira205 MPa (30 ksi).

Elongation: Mpaka40%, kusonyeza kupangika bwino.

Kuuma: Zofewa pang'ono ndipo zimatha kuvutitsidwa ndi ntchito yozizira.

4. Formability ndi Kupanga

Mosavuta anapangam'mawonekedwe osiyanasiyana chifukwa cha ductility yake yabwino kwambiri, kuipangitsa kukhala yabwino kujambula mozama, kukanikiza, ndi kupindika.

Weldability wabwino, makamaka oyenera njira zonse muyezo kuwotcherera.

Kugwira ntchito kozizira: Ikhoza kulimbikitsidwa kwambiri ndi ntchito yozizira, koma osati kupyolera mu chithandizo cha kutentha.

5. Kukaniza Kutentha

Kukana kwa okosijenimpaka870°C (1598°F)mukugwiritsa ntchito pafupipafupi komanso mpaka925°C (1697°F)mu utumiki mosalekeza.

Osavomerezeka kuti agwiritsidwe ntchito m'malo omwe amakhala ndi kutentha kosalekeza425-860°C (797-1580°F)chifukwa cha chiopsezo cha mpweya wa carbide, womwe ungachepetse kukana kwa dzimbiri.

6. Ukhondo ndi Maonekedwe Okongola

Zosavuta kuyeretsa ndi kukonzachifukwa cha malo ake osalala, omwe amatsutsana ndi kukula kwa bakiteriya, ndikupangitsa kuti ikhale yabwino yopangira chakudya ndi zida zakukhitchini.

Imakhalabe yonyezimira komanso yowoneka bwinokumaliza pamwamba, kuzipangitsa kukhala zodziwika bwino muzomangamanga, zida zakukhitchini, ndi ntchito zokongoletsa.

7. Zopanda Magnetic

Nthawi zambiriwopanda maginitomu mawonekedwe ake annealed, koma akhoza kukhala maginito pang'ono pambuyo ntchito ozizira.

8. Mapulogalamu

Amagwiritsidwa ntchito kwambiri pazida zopangira chakudya, zida zakukhitchini, zotengera zamankhwala, zotchingira zomangamanga, ndi zida zamankhwala.

Zoyenera kumadera omwe amafunikira kukana kwa dzimbiri, kulimba, komanso kupanga kosavuta.

9. Mtengo-Kuchita bwino

Zotsika mtengo kuposa zitsulo zosapanga dzimbiri (monga 316) pomwe zikupereka zabwino zonse, zomwe zimapangitsa kuti zikhale zotchuka pamapulogalamu ambiri.

10.Kukaniza ma Acids

Kulimbana ndi ma organic acid ambirindi ma inorganic acid omwe amawononga pang'ono, ngakhale sangagwire bwino m'malo okhala ndi acidic kwambiri kapena chloride (monga madzi a m'nyanja), pomwe chitsulo chosapanga dzimbiri 316 chimakondedwa.

Inox 304 ndi njira yabwino kwambiri yopangira zitsulo zosapanga dzimbiri m'malo osiyanasiyana ndikugwiritsa ntchito, kusanja mtengo, kulimba, ndi magwiridwe antchito.

Mankhwala a inox 304:

0Cr18Ni9 (0Cr19Ni9)

C: ≤0.08%

Si: ≤1.0%

Mayi: ≤2.0%

Kulemera: 18.0-20.0%

Kuchuluka: 8.0 ~ 10.0%

S: ≤0.03%

P: ≤0.045%

Thupi la inox 304:

Kulimba kwamphamvu σb (MPa)>520

Mphamvu zokolola zokhazikika σ0.2 (MPa)>205

Elongation δ5 (%)>40

Kuchepa kwagawo ψ (%)> 60

Kulimba: <187HB: 90HRB: <200HV

Kachulukidwe (20 ℃, Kg/dm2): 7.93

Malo osungunuka (℃): 1398 ~ 1454

Kutentha kwapadera (0 ~ 100 ℃, KJ·kg-1K-1): 0.50

Thermal conductivity (W·m-1·K-1): (100℃) 16.3, (500℃) 21.5

Linear kufutukula coefficient (10-6·K-1): (0~100℃) 17.2, (0~500℃) 18.4

Kukana (20℃, 10-6Ω·m2/m): 0.73

Longitudinal zotanuka modulus (20 ℃, KN/mm2): 193

Ubwino ndi mawonekedwe a inox 304:

1. Kukana kutentha kwakukulu
304 Chitsulo chosapanga dzimbiri chimakondedwa ndi anthu ambiri pazifukwa zambiri. Mwachitsanzo, ili ndi kukana kwabwino kwa kutentha kwapamwamba, komwe sikungafanane ndi chitsulo chosapanga dzimbiri wamba. Chitsulo chosapanga dzimbiri cha 304 chimatha kupirira kutentha kwambiri mpaka madigiri 800 ndipo chitha kugwiritsidwa ntchito munthawi zosiyanasiyana m'moyo.

2. Kukana dzimbiri
304 Chitsulo chosapanga dzimbiri ndichabwino kwambiri pakukana dzimbiri. Chifukwa imagwiritsa ntchito zinthu za chromium-nickel, imakhala ndi mankhwala okhazikika kwambiri ndipo ndiyosavuta kuwononga. Chifukwa chake, chitsulo chosapanga dzimbiri cha 304 chingagwiritsidwe ntchito ngati zinthu zotsutsana ndi dzimbiri.

3. Kulimba kwambiri
304 chitsulo chosapanga dzimbiri chimakhala ndi mawonekedwe olimba kwambiri, omwe amadziwika ndi anthu ambiri. Chifukwa chake, anthu amazipanga kukhala zinthu zosiyanasiyana, ndipo mtundu wazinthuzo ndiwokwera kwambiri.

4. Zomwe zimatsogolera zochepa
Chifukwa china chosankha chitsulo chosapanga dzimbiri cha 304 ndichoti chimakhala ndi lead yochepa ndipo kwenikweni sichivulaza thupi. Choncho, chimatchedwanso chitsulo chosapanga dzimbiri cha chakudya ndipo chingagwiritsidwe ntchito mwachindunji kupanga ziwiya za chakudya.

Chifukwa chiyani inox 304 ndi imodzi mwasukulu zomwe zimagwiritsidwa ntchito kwambiri komanso zodziwika bwino zazitsulo zosapanga dzimbiri

Inox 304 ndi imodzi mwamagiredi osapanga dzimbiri omwe amagwiritsidwa ntchito kwambiri chifukwa cha zinthu zingapo zofunika:

1. Kukaniza kwa Corrosion

• Amapereka kukana kwabwino kwa dzimbiri m'malo osiyanasiyana, ndikupangitsa kuti ikhale yoyenera ntchito zamkati ndi zakunja.

2. Kusinthasintha

• Kapangidwe kake koyenera kamaloleza kugwiritsidwa ntchito m'mafakitale ambiri, kuphatikiza zakudya ndi zakumwa, zomangamanga, zamagalimoto, ndi zamankhwala.

3. Katundu Wamakina Wabwino

• Ili ndi mphamvu zolimba kwambiri komanso ductility yabwino, zomwe zimawathandiza kupirira zovuta zamakina ndi mapindikidwe osasweka.

4. Kusavuta Kupanga

• Inox 304 imapangidwa mosavuta ndikupangidwa mosiyanasiyana ndi makulidwe osiyanasiyana, zomwe zimathandizira kupanga zinthu mosavuta.

5. Weldability

• Itha kuwotcherera mosavuta pogwiritsa ntchito njira zonse zokhazikika, ndikupangitsa kuti ikhale yoyenera pamapangidwe.

6. Katundu Waukhondo

• Malo ake osalala komanso kukana mabakiteriya kumapangitsa kukhala koyenera kukonza chakudya ndi ntchito zamankhwala, komwe ukhondo ndi wofunikira.

7. Mtengo-Kuchita bwino

• Ngakhale kuti akupereka katundu wabwino kwambiri, nthawi zambiri amakhala otsika mtengo kusiyana ndi zitsulo zina zosapanga dzimbiri, zomwe zimapangitsa kukhala chisankho chachuma pama projekiti ambiri.

8. Zopanda Magnetic

• M'malo mwake, simaginito, yomwe ndiyofunikira pazinthu zina pomwe maginito angakhale ovuta.

9. Aesthetic Appeal

• Imakhala ndi mawonekedwe owoneka bwino, ndikupangitsa kuti ikhale yoyenera pazomangamanga ndi zokongoletsera.

10.Kupezeka Padziko Lonse

• Monga aloyi wamba, amapangidwa mofala komanso kupezeka mosavuta, kupangitsa kupeza mosavuta kwa opanga ndi ogula.

Makhalidwewa amaphatikiza kupanga inox 304 kuti ikhale yogwiritsidwa ntchito pazinthu zambiri, zomwe zimapangitsa kuti zigwiritsidwe ntchito ndi kuzindikila.

Malingaliro:

Inox 304 kapena Stainless Steel 304 imadziwika chifukwa cha kukana kwa dzimbiri, kutsekemera bwino komanso mphamvu zambiri. Nthawi zambiri imakhala ndi 18% chromium ndi 8% faifi tambala ndipo ndiyoyenera kugwiritsa ntchito zosiyanasiyana. Zinthu izi zimapangitsa kukhala kalasi yazitsulo zosapanga dzimbiri zomwe zimagwiritsidwa ntchito kwambiri padziko lonse lapansi.