** 1. Cov hlau twg zoo dua, 304 lossis 316? **
Qhov kev xaiv ntawm 304 thiab 316 stainless hlau nyob ntawm daim ntawv thov.
- ** 1. 304 Stainless hlau **: muaj 18% chromium thiab 8% npib tsib xee. Nws muaj zoo corrosion tsis kam thiab yog tus nqi-ua tau zoo rau cov laj thawj dav dav (piv txwv li cov khoom siv hauv chav ua noj, ua vaj tse).
- ** ** 316 stainless hlau **: suav nrog 2-3% molybdenum, txhim kho corrosion tsis kam, tshwj xeeb tshaj yog tawm tsam corrosides thiab acids. Qhov zoo tagnrho rau qhov chaw hnyav (piv txwv li, ua yeeb yaj kiab, tshuaj lom neeg).
** Xaus rau **: 316 yog zoo dua rau kev xeb ib puag ncig, tab sis 304 muaj kev lag luam ntau dua rau kev siv txhua hnub.
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** 2. Dab tsi yog cov hlau zoo? **
High-zoo steel sib ntsib nruj qauv rau:
- ** Daim ntawv sib xyaw **: Kev tswj hwm ntawm cov ntsiab lus alloy (piv txwv li cov pa roj carbon, chromium, npib tsib xee).
- ** Kev tsim khoom tsim khoom **: Ntau Lawm Ntau Lawm (piv txwv li, lub tshuab nqus tsev melting) kom txo qis impurities.
- ** Cov cuab yeej siv neeg kho mob **: Lub zog siab, ductility, thiab tawv.
- ** Ntawv pov thawj **: Ua raws li cov qauv thoob ntiaj teb (piv txwv li, Astm, ISO).
Piv txwv suav nrog cov hlau-qib tsev kawm ntawv lossis txhim kho corrosion-resistant alloys zoo li Duplex steels stainless hlau.
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** 3. Hom twg ntawm cov hlau yog qhov zoo? **
Cov npe nrov steel hom hu rau qhov zoo muaj xws li:
- ** Tebchaws Europe **: Sandvik (Sweden), Thyssenkrupp (Lub teb chaws Yelemees), Voestalpine (Austria).
- ** Asia **: Nippon Steel (Nyiv), Posco (Kaus Lim Qab Teb).
- ** USA **: Kws ntoo Tshuab Technology, AK hlau.
Cov khoom lag luam no ua ntej ua ntu zus, qib siab R & D, thiab nruj kev tswj hwm zoo.
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** 4. Yuav ua li cas txheeb xyuas tus qauv hlau? **
Cov hau kev los txiav txim qib steel:
- ** Kev tsom xam tshuaj **: Siv spectroscopy lossis x-tshav fluorescence (XRF).
- ** Kev sim cais tawm **: Saib cov qauv txim thaum sib tsoo (sib txawv los ntawm cov ntsiab lus carbon).
- ** Magnetism **: Austenitic stainless hlau (piv txwv li, 304, 316) yog qhov tsis sib nqus.
- ** Hardness Kuaj **: Rockwell lossis Brinell cov ntawv xeem sib chaws sib cuam tshuam nrog cov khoom lag luam qib.
- ** Cim cim **: Saib rau cov cim ntim pob tw (piv txwv li, "304" ntawm cov hlau stainless).
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** 5. Cov hlau twg muaj zog thiab pheej yig? **
** Carbon Steel ** (xws li, Astm A36 lossis 1045) muaj kev sib npaug ntawm lub zog thiab pheej yig:
- ** Lub zog **: High tensile lub zog (400-550 mpa mpa mpa cia rau A36).
- ** Tus nqi them **: pheej yig dua li cov stainless lossis alloy hlau.
- ** SUPACTING **: Siv txoj kev txhim kho (xav tau).
Rau cov peev nyiaj ntau dua, ** Alloy Steel ** Zoo li 4140 muab cov nqi sib piv zoo dua-rau-tus nqi sib piv rau kev lag luam siv.
