Dab tsi yog qhov zoo ntawm FeCrAl cua sov hlau?

Dab tsi yog qhov zoo ntawm FeCrAl cua sov hlau?

1. Kub kub hauv qhov chaw

Qhov siab tshaj plaws siv kub ntawm HRE alloy nyob rau hauv cov hlau-chromium-aluminium hluav taws xob cua sov alloy yog 1425 degree, thiab qhov siab tshaj plaws siv kub ntawm Cr20Ni80 alloy nyob rau hauv cov nickel-chromium hluav taws xob cua sov alloy yog 1200 degree.

2. Kev pab lub neej

Nyob rau tib lub sijhawm ua haujlwm siab dua hauv huab cua, lub neej ntawm Fe-Cr-Al Cheebtsam tuaj yeem yog 2-4 npaug ntawm Ni-Cr Cheebtsam.

3. High deg load

Vim tias cov hlau-chromium-aluminium alloy tso cai rau qhov kub thiab txias thiab lub neej ntev, qhov chaw ntim ntawm cov khoom tseem tuaj yeem siab dua, uas tsis yog tsuas yog ua rau kub siab dua, tab sis kuj txuag cov ntaub ntawv alloy.

4. Zoo oxidation tsis kam

Al2O3 oxide zaj duab xis tsim nyob rau saum npoo ntawm cov hlau-chromium-aluminium alloy muaj cov qauv compact, zoo adhesion rau substrate, thiab tsis yooj yim rau kev ua paug vim tawg. Tsis tas li ntawd, Al2O3 muaj kev tiv thaiv siab thiab siab melting point. Cov yam tseem ceeb no txiav txim siab tias Al2O3 oxide zaj duab xis muaj kev tiv thaiv oxidation zoo heev, thiab nws cov kev ua haujlwm tiv thaiv carburization zoo dua li Cr2O3 tsim nyob rau saum npoo ntawm nickel-chromium alloy.

5. Kev faib ua me me

Qhov tshwj xeeb lub ntiajteb txawj nqus ntawm hlau-chromium-aluminium alloy yog me dua li ntawm cov nickel-chromium alloy, uas txhais tau hais tias hlau-chromium-aluminium yog cov khoom siv tsawg dua nickel-chromium thaum ua tib yam khoom.

6. Siab resistivity

Lub resistivity ntawm hlau-chromium-aluminium alloy yog siab dua li ntawm nickel-chromium alloy. Cov ntaub ntawv loj dua tuaj yeem xaiv tau thaum tsim cov khoom siv. Qhov no yog qhov zoo rau kev ua kom lub neej ntev ntawm cov khoom siv. Qhov no yog qhov tshwj xeeb tshaj yog rau cov hlau nyias nyias. Thaum xaiv cov khoom siv nrog tib cov lus qhia tshwj xeeb, qhov siab dua qhov kev tiv thaiv, ntau cov khoom yuav raug cawm dim, thiab qhov me me ntawm txoj hauj lwm ntawm cov khoom nyob rau hauv lub cub tawg yuav. Tsis tas li ntawd, qhov kev tiv thaiv ntawm Fe-Cr-Al alloy tsis tshua muaj kev cuam tshuam los ntawm kev ua haujlwm txias thiab kev kho cua sov dua li Ni-Cr alloy.

7. Zoo sulfur tsis kam

Thaum cov huab cua uas muaj leej faj thiab qhov chaw muaj kuab paug los ntawm cov khoom uas muaj leej faj, hlau, chromium thiab txhuas muaj corrosion kuj zoo, thaum npib tsib xee thiab chromium yuav raug corroded heev.

8. Pheej yig

Vim tias FeCrAl tsis muaj cov nickel tsis tshua muaj, tus nqi pheej yig dua li NiCr. Lub ntsiab qhov tsis zoo ntawm hlau-chromium-aluminium alloy yog nws qhov tsis tshua muaj siab kub lub zog, thiab nws cov plasticity nce nrog qhov kub thiab txias. Cov ntaub ntawv siab tshaj 1000 degree yuav elongate qeeb vim lawv tus kheej qhov hnyav thiab ua rau cov khoom deformation. Tsis tas li ntawd, tom qab siv rau lub sijhawm ntev ntawm qhov kub thiab txias hauv qhov cub, nws ua nkig thaum lub pob zeb siv lead ua loj tuaj, thiab tsis tuaj yeem khoov rau hauv lub xeev txias. Cov kev tsis txaus no yuav tsum zam thiab kov yeej hauv kev tsim thiab siv.

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