Qhov sib txawv ntawm cov coefficient thermal expansion ntawm cov khoom siv granite precision thiab cov khoom siv ceramic precision cuam tshuam li cas rau lawv daim ntawv thov hauv cov khoom siv high-precision?

Qhov sib txawv ntawm cov coefficient thermal expansion ntawm precision granite Cheebtsam thiab precision ceramic Cheebtsam thiab nws daim ntawv thov hauv cov khoom siv high precision
Hauv kev nrhiav kev ua haujlwm siab thiab ruaj khov hauv kev lag luam, cov coefficient ntawm thermal expansion ntawm cov ntaub ntawv dhau los ua qhov tseem ceeb xav txog. Cov khoom siv granite precision thiab cov khoom siv ceramic precision, ua ob hom ntaub ntawv siv dav hauv cov khoom siv high-precision, lawv qhov sib txawv ntawm thermal expansion coefficient muaj kev cuam tshuam loj rau kev ua haujlwm ntawm cov khoom siv.
Qhov sib txawv ntawm cov coefficient ntawm thermal expansion
Cov khoom siv granite precision:
Vim granite yog pob zeb ntuj, nws cov coefficient thermal expansion qis heev, feem ntau ntawm 8 × 10 ^ -6 / ℃ ~ 10 × 10 ^ -6 / ℃. Qhov no txhais tau tias thaum qhov kub hloov pauv, qhov hloov pauv loj ntawm cov khoom granite yog me me, uas yog qhov zoo rau kev tswj hwm kev ruaj khov thiab qhov tseeb ntawm cov khoom siv. Tsis tas li ntawd, granite kuj muaj lub zog compressive zoo, ruaj khov thiab hnav tsis kam, ua rau nws yog cov khoom siv ua haujlwm siab, txaj thiab lwm yam khoom siv ntawm cov khoom siv.
Cov khoom siv ceramic precision:
Qhov sib piv, qhov coefficient ntawm thermal expansion ntawm precision ceramic Cheebtsam qis dua, feem ntau qis dua li ntawm cov khoom siv hlau xws li stainless hlau. Qhov coefficient qis ntawm thermal expansion ntawm precision ceramics ua rau nws tswj tau qhov ruaj khov thiab qhov tseeb siab heev nyob rau hauv qhov kub hloov pauv hnyav. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov khoom siv uas xav tau ua haujlwm hauv cov xwm txheej siab ntev, xws li cov khoom siv aerospace, cov cuab yeej ntsuas precision, thiab lwm yam.
Kev cuam tshuam rau cov khoom siv high-precision
Kev khaws cia qhov tseeb:
Hauv cov khoom siv siab precision, txhua qhov kev hloov me me tuaj yeem muaj kev cuam tshuam loj rau kev ua haujlwm tag nrho ntawm cov khoom siv. Cov khoom siv granite precision thiab cov khoom siv ceramic precision, vim lawv cov coefficient qis ntawm thermal expansion, muaj peev xwm tswj tau qhov kev hloov me me thaum qhov kub hloov pauv, yog li ua kom ntseeg tau tias lub sijhawm ntev raug thiab ruaj khov ntawm cov khoom siv. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov khoom siv uas xav tau kev ntsuas siab precision, xws li cov tshuab ntsuas sib koom tes, cov tshuab lithography, thiab lwm yam.
Kev sib phim:
Hauv cov khoom siv siab precision, qhov sib phim ntawm cov khoom sib txawv kuj yog ib qho ntawm cov yam tseem ceeb uas cuam tshuam rau kev ua haujlwm ntawm cov khoom siv. Vim yog qhov sib txawv ntawm cov coefficient ntawm thermal expansion ntawm cov khoom granite precision thiab cov khoom ceramic precision, qhov sib txawv no yuav tsum tau txiav txim siab tag nrho hauv kev tsim qauv thiab kev tsim khoom kom ntseeg tau tias muaj kev sib phim zoo ntawm cov khoom. Piv txwv li, thaum sib xyaw cov khoom ceramic precision nrog cov khoom hlau, cov txheej txheem sib txuas tshwj xeeb thiab cov ntaub ntawv yuav tsum tau ua kom txo qhov kev ntxhov siab thiab cov teeb meem deformation los ntawm qhov sib txawv ntawm cov coefficients thermal expansion.
Daim ntawv thov kev pab cuam:
Hauv kev siv ua haujlwm, cov khoom siv granite precision thiab cov khoom siv ceramic precision feem ntau raug xaiv thiab siv raws li qhov xav tau tshwj xeeb. Piv txwv li, hauv cov cuab yeej ntsuas siab precision, cov khoom siv granite precision tuaj yeem siv ua cov khoom siv ua haujlwm thiab txaj kom ntseeg tau tias muaj kev ruaj khov thiab raug ntawm cov khoom siv; tib lub sijhawm, hauv cov khoom uas xav tau qhov raug siab dua thiab kev hloov pauv me me, cov khoom siv ceramic precision tuaj yeem tsim tau. Daim ntawv thov dav dav no tuaj yeem muab kev ua si tag nrho rau qhov zoo ntawm ob yam khoom siv thiab txhim kho kev ua tau zoo thiab kev ntseeg siab ntawm cov khoom siv.
Hauv kev xaus, qhov sib txawv ntawm cov coefficient thermal expansion ntawm cov khoom siv granite precision thiab cov khoom siv ceramic precision muaj qhov cuam tshuam tseem ceeb rau kev siv cov khoom siv high-precision. Los ntawm kev xaiv thiab siv cov ntaub ntawv no kom raug, peb tuaj yeem ua kom ntseeg tau tias cov khoom siv tseem tuaj yeem tswj tau qhov tseeb thiab ruaj khov hauv qhov kub thiab txias, kom ua tau raws li qhov xav tau ntawm ntau yam kev siv tshuab thiab kev ntsuas siab.