AISI 304: cov khoom, yam ntxwv, muaj pes tsawg leeg

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Kab lus no yog qhov chaw khaws cia ntawm cov ntaub ntawv tseem ceeb tshaj plaws txog kev ua haujlwm zoo li steel thiab metallurgy. Tab sis tsis zoo li cov lus qhuav, uas feem ntau tsis tuaj yeem nkag siab rau tus neeg nruab nrab uas tsis muaj kev kawm qib siab hauv metallurgy, tag nrho cov ntaub ntawv muaj nyob rau hauv tsab xov xwm no tau nthuav tawm ntau cov lus yooj yim kom txhua tus tuaj yeem nkag mus rau hauv cov ntaub ntawv. lub ncauj lus, txaus siab, thiab yav tom ntej delve rau hauv nws me ntsis tob.

Daim ntawv thov ntawm AISI 304 steel

Steel yog cov khoom siv ntau yam uas pom nws lub niche hauv txhua lub lag luam, tsis hais nws qhov profile, tab sis muaj ntau cov hlau uas tau tsim los ntawm lub hom phiaj ntawm kev tsim cov khoom lag luam. Cia peb hu nws tshwj xeeb heev. Ib qho ntawm cov hlau no yog AISI 304. Cov chaw uas nws siv feem ntau tseem ceeb heev rau koj thiab kuv - cov neeg zoo tib yam, vim lawv cov npe suav nrog:

• Khoom nojkev lag luam thiab nws cov ceg. Feem ntau cov cuab yeej steel, nrog rau kev cia thiab thauj cov thawv, zoo li yuav ua los ntawm cov hlau no. Tsis tas li, cov khoom tseem ceeb ntawm qee cov khoom siv ua noj kuj yog ua los ntawm cov khoom siv no.
• AISI 304 steel yog tshwj xeeb tshaj yog nyob rau hauv kev thov hauv kev tsim cov kav dej ntawm ntau txoj kab.
• Cov khoom siv hauv chav ua noj: crockery thiab cutlery.
• Nyob hauv kev lag luam tshuaj, qib steel no feem ntau siv.
• Thiab tau kawg, tsis muaj qib steel yog tsim yam tsis tau saib ntawm kev tsim kho kev lag luam, txawm hais tias nws yog siv los ua cov txheej txheem ntawm tus kheej, thiab tsis yog rau kev tsim kho hauv kev nkag siab ntawm lo lus.

Alloy composition

Yuav kom nkag siab zoo dua yog vim li cas cov hlau no nrov heev hauv kev lag luam tau piav qhia saum toj no, peb yuav tsum tau ua kom tob me ntsis. Peb tab tom tham, tau kawg, txog cov tshuaj muaj pes tsawg leeg ntawm cov hlau, vim nws yog qhov tseem ceeb uas cuam tshuam rau cov khoom ntawm AISI 304 steel ntau dua li lwm tus.

Raws li cov ntaub ntawv muaj, cov ntsiab lus ntawm cov khoom sib xyaw yog raws li hauv qab no.

• Iron - 69%. Nws yog lub hauv paus thiab txuas cov khoom rau tag nrho lwm yam impurities.
• Carbon - 0.8%. Classification steel li high-carbon thiab muab nws hardness thiab rigidity, tab sis ntawm tus nqi ntawm ductility.
• Manganese - 0.2%. Nws kuj me ntsis txhim kho cov yam ntxwv ntawm lub zog ntawm cov hlau yam tsis tau txo cov ductility.
• Nickel - 10%. Cov ntsiab lus zoo heevcov khoom nyob rau hauv cov muaj pes tsawg leeg muaj ib tug tseem ceeb nyhuv rau nws cov qauv, uas yog: nws ua rau kom cov kev tiv thaiv corrosion, tsub kom lub hardenability ntawm alloy thiab nws ductility.
• Sulfur - 0.02%. Ib qho teeb meem impurity uas cuam tshuam rau cov khoom ntawm steel. Tab sis nws cov ntsiab lus nyob rau hauv muaj pes tsawg leeg yog li insignificant uas nws cov nyhuv yog leveled.
• Phosphorus - 0.035%. Ib qho kev ua phem zoo sib xws, qhov cuam tshuam ntawm qhov tseem ceeb hauv qhov no.
• Chrome - 18%. Ib qho kev sib xyaw ua ke uas ua rau muaj kev tiv thaiv ntawm cov hlau rau oxidation thiab corrosion, thiab kuj ntxiv zog rau cov muaj pes tsawg leeg.
• Titanium - 0.5%. Lwm lub ntsiab lus qhia kom tawv AISI 304 steel.
• Copper - 0.3%. Me ntsis ua kom cov xeb tsis kam ntawm steel.

Steel properties

Summing tag nrho cov saum toj no, peb tuaj yeem ntseeg tau tias qib steel no muaj qhov tshwj xeeb tiv thaiv oxidation thiab xeb, uas tso cai rau nws xav tau ntau tshaj plaws rau kev tsim cov cutlery, khoom siv hauv tsev, khoom siv tshuaj thiab ntau ntxiv.. Tom qab tag nrho, cov khoom zoo li no yuav tsum muaj kev tiv thaiv ntau ntxiv rau qhov kev nruj nruj, uas ua rau qhov txawv ntawm cov hlau no. Tsis tas li ntawd, cov yam ntxwv ntawm lub zog ntawm cov hlau no tso cai rau nws nyob rau hauv kev thov hauv kev tsim kho rau kev tsim khoom ntawm cov khoom siv me me uas yuav raug cuam tshuam rau kev ua phem. Ib qho piv txwv ntawm kev siv AISI 304 yog cov kav dej, uas qee zaum tsis yog cov dej huv tshaj plaws nrog cov impurities yog pumped hauv siab.alkalis thiab acids.

Analogues

Tau kawg, qhov kev nrhiav cov hlau zoo li no tsis tuaj yeem yog ib qho rau txhua tus. Txog rau hnub tim, muaj tag nrho cov npe ntawm analogue steels los ntawm ntau qhov chaw hauv ntiaj teb. Nov yog qee qhov nrov tshaj plaws:

• Russia - 03Х18Н11;
• Tebchaws Meskas - S30400;
• Lub Tebchaws Yelemees - X5CrNi18-10;
• Europe - 1, 4301;
• Japan - SUS304.

Khaws cov npe yooj yim no hauv siab, leej twg tuaj yeem, yog tias tsim nyog, yuav cov khoom no lossis cov khoom ntawd los ntawm cov hlau tshwj xeeb, txuag lawv tus kheej los ntawm kev cia siab tias yuav raug dag lossis yuav yam tsis xav tau.

Zaj lus

AISI 304 steel yog nrov heev hnub no. Feem ntau vim tias nws tau tsim tshwj xeeb rau kev tsim cov khoom lag luam uas tau siv hauv kev lag luam tseem ceeb thiab hauv lub neej niaj hnub ntawm cov neeg zoo tib yam. Nws qhov tseem ceeb yog qhov nyuaj rau overestimate, thiab yog li ntawd cov hlau nws tus kheej yuav tsum tau zoo thiab xav tias zoo nyob rau hauv cov xwm txheej uas lwm qib ntawm steel yuav incapacitated. Txawm li cas los xij, koj yuav tsum them nyiaj rau qhov no, thiab qhov tseeb. Tus nqi rau AISI 304 feem ntau yog li ntawm 50 txog 100 rubles ib kg.