Nyob rau hauv cov txheej txheem casting, chills yog cov khoom tseem ceeb uas siv los tswj lub solidification ntawm molten hlau. Los ntawm kev txhawb nqa kev taw qhia kev ua kom khov, txias txias pab txo qhov tsis xws luag xws li shrinkage kab noj hniav thiab txhim kho cov khoom siv ntawm qhov kawg casting. Chills tuaj yeem muab cais ua rau sab nraud thiab sab hauv, txhua tus tsim los rau cov kev siv tshwj xeeb hauv pwm.
Function ntawm Chills
Txhawb kev taw qhia Solidification: Chills rho tawm cov cua kub sai sai los ntawm cov chaw tshwj xeeb ntawm cov casting,txhawb cov cheeb tsam ntawd kom khov ua ntej. Cov txheej txheem tswj kev ruaj khov no coj cov dej ntws ntawm cov kua hlau mus rau thaj chaw uas muaj feem yuav tsim cov kab noj hniav, yog li tiv thaiv cov kev tsis xws luag.
Txhim kho Mechanical Properties: Los ntawm kev tswj tus nqi solidification thiab qauv, chills pab tsim cov qauv zoo, uas txhim kho cov khoom siv ntawm cov casting. Cov qauv kev txhim kho tau ua rau muaj zog zoo dua thiab kav ntev.
Cov khoom siv rau kev txias txias
Cast Iron: Siv dav vim nws cov nqi-zoo thiab txaus thermal conductivity. Cam khwb cia hlau txias yog ruaj khov thiab tuaj yeem ua tau yooj yim zoo li kom haum rau ntau yam pwm configurations.
Tooj: Paub txog nws zoo heev thermal conductivity, tooj liab chills yog siv nyob rau hauv daim ntawv thov yuav tsum tau ceev kub rho tawm. Txawm hais tias nws kim dua li cam khwb cia hlau, tooj liab qhov ua tau zoo hauv qhov txias ua rau nws muaj txiaj ntsig rau cov kev xav tau tshwj xeeb.
Graphite: Nrog cov thermal conductivity thiab tsis kam mus rau qhov kub thiab txias, graphite chills yog tsim rau ntau yam kev siv casting. Lawv muaj txiaj ntsig tshwj xeeb yog tias tsis yog xim hlau txias yog nyiam.
Sab nraud Chills
Sab nraud txias yog muab tso rau saum npoo ntawm cov pwm kab noj hniav. Lawv yuav tsum tau tsim cov tswv yim los xyuas kom meej tias cov khoom siv hluav taws xob zoo tsis ua rau cov thermal gradients ntau dhau uas yuav ua rau tawg. Cov ntsiab lus tseem ceeb rau kev tsim sab nraud chill muaj xws li:
Loj thiab Zoo: Lub chill yuav tsum muaj qhov chaw txaus kom tshem tawm cov cua sov uas tsim nyog tab sis tsis loj heev uas nws cuam tshuam cov qauv solidification.
Qhov chaw: Chills yog positioned nyob rau hauv cov cheeb tsam uas ceev ceev txias yog xav tau los txhawb cov uniform solidification. Qhov kev tso kawm no ua kom ntseeg tau tias lub hauv ntej solidification nce mus rau hauv kev tswj hwm, txo qhov kev pheej hmoo ntawm qhov tsis xws luag.
Internal txias
Internal txias yog embedded nyob rau hauv lub pwm kab noj hniav. Lawv yog tshwj xeeb tshaj yog pab tau nyob rau hauv complex castings nrog intricate intricate nta uas sab nraud chills tsis tau zoo tswj cov txheej txheem solidification. Cov yam tseem ceeb ntawm kev tsim sab hauv chill muaj xws li:
Khoom Compatibility: Internal chills feem ntau yog tsim los ntawm tib yam khoom raws li cov casting los xyuas kom meej tias lawv integrate seamlessly tsis ua rau muaj kab mob los yog lwm yam teeb meem.
Qhov chaw zoo: Internal chills yuav tsum tau ua tib zoo muab tso rau hauv cov cheeb tsam uas muaj qhov kub thiab txias los yog ncua kev sib zog. Kev tso kawm kom zoo ua kom cov cua txias tsis sib xws thiab ua kom muaj zog, txhim kho cov txheej txheem kev ncaj ncees ntawm cov casting.
Post lub sij hawm: Dec-06-2024