| Yam khoom | Lub Koom Haum Yooj Yim | ||
| Sawv Cev Hlau | 304 | 201 | 316 |
| Lub zog Tensile | ab (MPa) ≥520 | 520MPa | |
| Lub Zog | ≤187HB; ≤90HRB; ≤200HV | HRB <183N / mm2 (MPa) | |
| Lub ntsiab tseem ceeb | Siv dav hauv kev lag luam thiab rooj tog kho kom zoo nkauj kev lag luam thiab yeeb yaj kiab kho mob kev lag luam | Feem ntau siv los ua cov tog raj dai kom zoo nkauj, txoj hlab kev lag luam, thiab qee cov khoom lag luam ntiav | Mas siv hauv kev lag luam khoom noj khoom haus thiab lub plhaub phais sab nrauv cov khoom siv, ntxiv molybdenum tuaj yeem ua rau nws lossis cov qauv tshwj xeeb uas muaj xeb |
| Corrosion kuj | Siab | Siab | |
Lo lus nug 1:
Vim li cas cov hlau stainless kuj sib nqus?
304 stainless hlau belongs rau austenitic stainless hlau. Austenite yog qee lossis ib feem me me pauv mus ua martensite thaum ua haujlwm txias. Martensite yog sib nqus, yog li 304 stainless hlau tsis yog sib nqus lossis sib nqus me ntsis.
Lo lus nug 2:
Vim li cas cov hlau tsis muaj xeb?
a. Qhov saum npoo ntawm cov hlau tsis huv muaj cov plua plav uas muaj lwm cov ntsiab lus hlau lossis txuas ntawm txawv teb chaws hlau. Nyob rau hauv huab cua noo, qhov dej sib tov ntawm qhov txuas thiab stainless hlau txuas ob mus rau hauv lub roj teeb micro, uas pib ua hluav taws xob tsis haum, tiv thaiv cov yeeb yaj kiab puas, uas yog hu ua electrochemical corrosion.
b. Qhov saum npoo ntawm stainless hlau ua raws li cov kua txiv (xws li melon, zaub, noodle kua zaub, hnoos qeev, thiab lwm yam), uas tsim cov organic acid nyob rau hauv qhov chaw muaj dej thiab oxygen, thiab cov organic acid yuav corrode hlau nto rau ntev sijhawm.
c. Qhov saum npoo ntawm stainless hlau ua raws li cov kua qaub, alkali, thiab cov tshuaj ntsev (xws li dej alkaline thiab kua qaub dej ntaws rau ntawm phab ntsa dai kom zoo nkauj), ua rau xeb hauv zos.
d. Hauv cov huab cua tsis huv (xws li cov huab cua muaj ntau ntawm sulfide, carbon oxide, thiab nitrogen oxide), nws yuav tsim cov tshuaj sulfuric acid, nitric acid, thiab acetic acid kua cov kua thaum ntsib cov dej hauv dej, ua rau tshuaj lom neeg xeb.
Lo lus nug 3:
Yuav ua li cas paub qhov tseeb 304 stainless hlau khoom?
A.Support 304 stainless hlau tshwj xeeb tshuaj xyuas potion tsom, yog tias nws tsis hloov xim, nws yog 304 stainless hlau.
B.Support cov tshuaj lom neeg lub cev tsom xam thiab kev tsom xam cov duab.
C. Kev Txhawb Nqa pa rau simulate qhov chaw siv.
Lo lus nug 4:
Dab tsi yog cov feem ntau cov hom stainless hlau?
A.201 stainless hlau, haum rau siv nyob rau hauv qhov chaw qhuav, nws yooj yim rau xeb hauv kev sib cuag nrog dej.
B.304 stainless hlau, qhov chaw sab nraum zoov thiab noo noo, muaj zog corrosion thiab acid tiv thaiv.
C.316 stainless hlau, ntxiv molybdenum, ntau dua corrosion tiv thaiv, tshwj xeeb tshaj yog haum rau dej hiav txwv thiab tshuaj lom neeg cov ntawv tshaj tawm.
Sijhawm Post: Jan-07-2021