Kev npaj cov txheej txheem nyias nyias rau Polarizing Microscopes
Thaum soj ntsuam cov qauv nyob rau hauv lub polarizing microscope, cov qauv yuav tsum tau npaj rau hauv av los yog polished seem, feem ntau hu ua polished seem. Cov txheej txheem npaj yog raws li nram no:
(1) Kev Xaiv Cov Qauv: Xaiv cov neeg sawv cev ntawm cov qauv raws li kev soj ntsuam lub hom phiaj thiab cov kev xav tau ntawm kev txheeb xyuas. Txiav rau hauv cubic blocks ntawm 10 × 10 × 10 mm thiab ntxuav kom huv si.
(2) Mounting lossis Impregnation: Cov qauv me me yuav tsum tau mounted. Porous los yog xoob qauv qauv yuav tsum tau impregnated nrog resin ua ntej.
(3) Rough Sib Tsoo: Xaiv qhov chaw tiaj tus ntawm tus qauv. Sib tsoo saum npoo tiaj tus ntawm lub tshuab sib tsoo nrog ntxhib abrasive los txiav cov duab thiab tshem tawm cov npoo ntse thiab cov fab.
(4) Fine Grinding: Sib tsoo nrog nplua abrasive kom txog thaum tag nrho cov khawb tawm los ntawm kev sib tsoo ntxhib raug tshem tawm tag nrho.
(5) Precision Sib Tsoo: Siv ultra-fine abrasive rau kev sib tsoo ntxiv kom txog rau thaum lub ntsej muag ua kom tiaj tus thiab qhia pom qhov tsis pom kev nyob rau hauv lub teeb pom kev.
(6) Polishing: Muab cov qauv tso rau ntawm lub tshuab polishing thiab siv polishing compound (polishing hmoov) rau polishing. Txuas ntxiv mus kom txog rau thaum qhov chaw ci ntsa iab thiab tsis muaj qhov pom tseeb khawb thaum kuaj xyuas hauv qab lub teeb pom kev zoo.
(7) Kos npe: Sau cov khoom tiav thiab txuas cov ntawv qhia kom meej lawv qhov chaw thiab npe.
(8) Etching: Xaiv qhov tsim nyog etching txoj kev thiab tej yam kev mob raws li kev sim lub hom phiaj thiab kev tsom xam, ces ua etching kev kho mob ntawm cov qauv.
Yog hais tias microstructural tsom xam yuav tsum tau ua nyob rau hauv ob qho tib si kis tau tus mob thiab reflected lub teeb, cov qauv yuav tsum tau npaj rau hauv ib tug polished nyias seem los yog ib tug ultra-thin polished seem (thickness ＜ 0.02 hli). Txhawm rau npaj cov seem polished, ua ntej grind cov qauv mus rau ib lub thickness ntawm 0.03 hli yam tsis tau npog nws nrog ib tug cover, ces polish lub precisely av nto ntawm lub tshuab polishing.
