Tsom iav tsom kwm kev ua tiav thiab tu thiab tu & tu txoj kev
Lub tshuab tsom hlwb yog qhov cuab yeej uas tuaj yeem ua kom muaj zog rau cov khoom me me. Tam sim no, nws tau siv dav hauv ntau yam kev lag luam xws li kev qhia, kev kho mob, khoom noj, thiab lwm yam khoom siv kho qhov muag tau muab faib ua ob pawg. Ib qho yog kev siv roj txheeb lom neeg feem ntau siv nyob rau hauv kev qhia thiab kev lag luam kho mob, tsuas yog Metallographic qauv, thiab cov pob zeb hluav taws xob, cov txheej txheem hluav taws xob, thiab cov nplais deg.
Metallographic microscopes kuj siv cov ntsiab cai kho qhov muag kom muaj zog thiab nthuav tawm cov khoom me me ntawm peb los ntawm kev sib xyaw ntawm ob lub lo ntsiab muag. Txawm li cas los xij, lawv magnification feem ntau yog qis dua 1000 zaug, thiab 400 zaug yog feem ntau siv. Nyob rau tib lub sijhawm, txoj kev kho kho kho qhov muag ntawm kev ntaus nrig yog qhov txawv ntawm kev txheeb xyuas microsologopes. Hauv kev siv tshuaj tua hluav taws xob, kev hloov lub teeb pom kev siv hluav taws xob feem ntau siv, thaum cov hlau thiab lwm yam kuaj pom los ntawm metallographic microsque, yog li kev xav pom lub teeb ua kom lub teeb ua ntej yog siv. Metallographic microscopes tseem muab faib ua ob hom: Upright thiab inverted. Vim tias qhov kev xav tau rau kev ntsuas thiab kev tshuaj ntsuam ntawm cov qauv sib tw, cov iav tsom iav tshwj xeeb, hu ua cov khoom siv micrometer. Qhov kev muag daj no yog ib qho kev hla sib ceg Cov hom phiaj ntawm cov metallographic microscopes tseem muab faib ua cov hom phiaj Achorromatic awromatic thiab tiaj tus qauv achromatic. Vim yog cov siv ntau zaus ntawm 400 zaug rau metallographic microscopes, qee cov microscopes tsuas muaj 40 x ntawm txoj kab kev ntsuas hluav taws xob kom txuag tau tus nqi. Ib qho ntxiv, vim qhov xav tau los soj ntsuam thiab kawm cov qauv siv hlau thiab cov kev tshawb fawb yog cov kev sib txuas lus ntau rau cov tshuaj ntsuam ntawm Muallground. Txawm li cas los xij, vim muaj qhov tshwj xeeb tshwj xeeb ntawm cov kev tsom xam ntawm daim duab khwb no, tseem muaj cov kws tshaj lij rau cov neeg siv. Tsis tas li ntawd, qee cov hlau hlau ua yeeb yam thiab txiav cov tshuab siv rau cov txheej txheem ua piv txwv tau siv ua ke.
Raws li metallographic microscopes kuj tseem ceeb ua haujlwm yuav tsum tau nqa tawm tom qab siv lub tshuab tsom, thiab tom qab ntawd muab tso rau hauv lub txee. Tsis tas li ntawd, nws yog qhov tsim nyog yuav tsum tsis tu ncua ntxuav thiab tswj lub tshuab tsom; Them sai sai rau kev tiv thaiv noo noo thiab noo noo tso tawm. Thaum tu lub hom phiaj tseem ceeb heev thiab lub ntsej muag daj, nco ntsoov maj mam so lawv nrog pob paj rwb. Rau cov av uas nyuaj rau ntxuav, koj tuaj yeem siv cov paj rwb lub pob paj rwb tso rau hauv kev sib xyaw ntawm ethanol thiab ether (8 thiab 2 thiab 2 thiab 2 thiab 2 thiab 2 sib piv) kom maj mam so lawv. Cov khoom paj rwb tsis tuaj yeem siv rov qab. Ib qho ntxiv, thaum siv cov ntsiab lus siab tshaj tawm cov ntsiab muag, ntau dua Tam sim no, ntau lub microscopes tau dhau los tsis tau zoo anti mould kho rau lub lens nws tus kheej.
