Yuav ua li cas xaiv cov hlau chromium txhuas hluav taws xob rauv hlau hauv lub qhov cub carburizing

Yuav ua li cas xaiv cov hlau chromium txhuas hluav taws xob rauv hlau hauv lub qhov cub carburizing

Carburization rauv yog ib hom kev kho cua sov rauv uas yuav tsum tau siv cov hluav taws xob rauv hluav taws xob. Txawm li cas los xij, thaum lub sijhawm xaiv cov khoom siv hluav taws xob tsim hluav taws xob, ib qho tau teeb meem los ntawm kev nrhiav cov khoom txaus siab. Ntawm no, Yancheng Songtai pab koj kom meej meej koj lub siab thiab xaiv tau yooj yim txaus siab rau cov khoom siv hluav taws xob rau hluav taws xob hluav taws xob.

Thaum xaiv cov khoom siv rau carburizing furnaces, nws yog ib qho tseem ceeb kom ntseeg tau tias cov hluav taws xob cua sov alloy tsis raug ncaj qha rau cov pa roj carbon. Vim yog cov ntsiab lus chromium siab ntawm hlau chromium aluminium alloy, hauv kev siv tiag tiag, yog tias carbon ncaj qha nkag mus rau hauv cov hlau chromium aluminium alloy, nws yuav hnov ​​​​mob nrog cov chromium nyob rau hauv alloy los tsim ib qho kev sib xyaw ntawm carbon thiab chromium, uas yuav muab faib rau ntawm cov qoob loo ciam teb. Vim lub ntim expansion ntawm lub compound tom qab tsim, lub alloy yuav muaj "bulging" phenomenon, heev shortening lub alloy lub lifespan.

Cheng Shi pom tias cov cua kub ntawm lub cub tawg yuav tsum tau sib cais nruj me ntsis ntawm cov pa roj carbon monoxide los tiv thaiv hluav taws xob hlau carburization. Yog tias qhov tsim qauv raug kaw, nws yog qhov zoo tshaj rau nruab cov hlau chromium txhuas hluav taws xob rau hluav taws xob rau hauv cov khoom sib khi thiab ua kev kho mob ua ntej oxidation ntawm 950 degree rau li 6 teev ua ntej sib khi. Tom qab qhov saum npoo ntawm cov hlau chromium aluminium hluav taws xob rau hluav taws xob xaim hloov nyiaj grey lossis dawb, nws tuaj yeem raug kaw thiab siv. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias lub cub tawg hlau yuav ua rau nkig tom qab ua ntej oxidation. Thaum kho ua ntej oxidation tau ua tiav, nws tsis tuaj yeem deformed dua thiab tsis tuaj yeem raug cuam tshuam rau sab nraud tseem ceeb.

Ua ntej, nws yog ib qho tsim nyog kom nkag siab txog cov yam ntxwv ntawm cov hlau chromium txhuas hluav taws xob rauv hlau hluav taws xob cua sov alloy cov ntaub ntawv:

① Kev siv kub siab, xws li qhov siab tshaj plaws kev siv kub ntawm HRE hlau chromium aluminium alloy hlau nyob rau hauv qhov chaw tuaj yeem ncav cuag 1400 degree;

② Lub neej ua haujlwm ntev;

③ Lub tso cai nto load yog siab;

④ Kev ua haujlwm zoo antioxidant, thiab AI2O3 zaj duab xis tsim tom qab oxidation muaj cov tshuaj tiv thaiv zoo thiab muaj zog tiv taus;

⑤ Tshwj xeeb lub ntiajteb txawj nqus tsawg dua nickel chromium alloy;

⑥ Siab tiv taus;

⑦ Zoo sulfur tsis kam;

⑧ Tus nqi qis dua li nickel chromium alloy;

⑨ Qhov tsis zoo yog tias qhov kub nce, nws nthuav tawm cov yas thiab tsis muaj zog ntawm qhov kub thiab txias.

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