Kev ruaj khov tsis yog ib qho kev xaiv - nws yog ib qho kev lav ris! Los ntawm kev hloov cov khib nyiab mus ua tus nqi, peb tab tom teeb tsa tus qauv tshiab rau kev tsim khoom lag luam uas muaj lub luag haujlwm thiab qhia tias kev loj hlob ntawm kev lag luam thiab kev saib xyuas ib puag ncig tuaj yeem mus ua ke.

Hauv kev siv xuab zeb casting ib txwm muaj, xuab zeb silica tau yog cov khoom siv pwm tseem ceeb rau ntau pua xyoo vim nws muaj ntau thiab pheej yig. Txawm li cas los xij, kev txhawj xeeb txog kev noj qab haus huv ib puag ncig thiab kev ua haujlwm uas nce ntxiv - tshwj xeeb tshaj yog txog cov hmoov av crystalline silica - ua rau cov chaw tsim khoom nrhiav lwm txoj hauv kev nyab xeeb dua, ruaj khov dua.

Cov cenospheres tsis yog ib yam khoom siv xwb; lawv yog ib qho pov thawj tias kev tsim kho tshiab tuaj yeem hloov cov khib nyiab mus ua kev nplua nuj thaum tiv thaiv lub ntiaj teb. Los ntawm kev koom ua ke cov cenospheres rau hauv cov haujlwm tsim kho, peb tuaj yeem tsim lub neej yav tom ntej ntsuab dua, ruaj khov dua - ib lub microsphere ib zaug.

Nyob rau hauv xyoo tas los no, cenosphere tau tshwm sim los ua ib qho khoom siv hloov pauv kev ua si thoob plaws ntau yam lag luam, ua tsaug rau nws cov khoom tshwj xeeb thiab kev siv ntau yam. Tau los ntawm cov tshauv tsim tawm thaum lub sijhawm hlawv thee, cenosphere yog lub pob zeb sib dua, khoob ...

Cov tshauv ya cenospheres, ua cov khoom siv rau ib puag ncig, tau txais kev saib xyuas thiab siv ntau hauv cov xim pleev xim, cov tshuaj pleev xim, thiab lwm yam lag luam, qhia txog kev loj hlob zoo kawg nkaus. Kev txhawb nqa kev tshawb fawb thiab kev txhawb nqa cov khoom siv rau ib puag ncig yog qhov tseem ceeb los txhawb lawv txoj kev siv dav dav thoob plaws ntau yam kev lag luam thiab pab txhawb kev tsim kom muaj ib puag ncig zoo.

Tshawb nrhiav cov txiaj ntsig hloov pauv ntawm cenosphere hauv metallurgy. Kawm txog kev txhim kho lub teeb yuag, kev rwb thaiv tsev thermal, kev tiv thaiv corrosion, thiab kev siv ntau yam. Txhim kho koj cov txheej txheem metallurgical nrog cov kev daws teeb meem cenosphere tshiab. Nyeem ntxiv tam sim no!

Cov khoom sib xyaw ua los ntawm cov av nplaum uas muaj 10–15% cenospheres ua tiav qhov sib npaug zoo tshaj plaws hauv kev ua haujlwm tau zoo, qhov ceev, kev nqus dej, lub zog compressive, lub zog flexural, kev tiv thaiv hluav taws, kev tiv thaiv acid, thiab kev ziab shrinkage.

Hauv thaj chaw ntawm cov ntaub ntawv foundry, cenospheres tshwm sim ua ib qho khoom muaj nqis thiab tsis tseem ceeb. Cov pob zeb sib dua, hollow spheres, uas tau los ntawm cov tshauv ya, ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm zoo, zoo, thiab ruaj khov ntawm castings.

Nyob rau lub sijhawm tsis ntev los no, qhov kev tsom teeb tau tig mus rau cov cenospheres hollow, ib yam khoom tshiab uas muaj peev xwm loj heev thoob plaws ntau yam lag luam. Cov spheres me me tab sis muaj zog no qhia txog kev siv tau zoo hauv ntau qhov chaw, ua rau txoj hauv kev rau cov kev daws teeb meem tshiab. Cov Khoom Siv Sib Xyaws Sib Xyaws: Ib qho ntawm cov ntawv thov tseem ceeb ntawm cov cenospheres hollow yog nyob rau hauv kev tsim cov khoom siv sib xyaws sib xyaws sib xyaws.

Thaum nws los txog rau kev tiv thaiv hluav taws, cov txheej txheej intumescent ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv kev kis hluav taws thiab tiv thaiv cov qauv ntawm kev puas tsuaj los ntawm cua sov. Cov txheej txheej no yog tsim los kom nthuav dav thaum raug hluav taws thiab tsim ib txheej tuab ntawm cov thee, muab ib qho kev thaiv rau hauv qab substrate thiab qeeb qeeb kev kis ntawm cov nplaim taws. Ib qho khoom xyaw tseem ceeb uas tuaj yeem txhim kho kev ua tau zoo ntawm cov txheej txheej intumescent yog kev ntxiv cov cenospheres ua cov khoom sau.