Granite yog ib lub pob zeb igneous ntuj uas tau lees paub ntev rau nws qhov ruaj khov thiab ruaj khov, ua rau nws yog ib qho khoom siv tseem ceeb hauv ntau yam kev siv engineering. Ib qho ntawm cov chaw tseem ceeb tshaj plaws uas granite ua lub luag haujlwm tseem ceeb yog hauv kev sib dhos ntawm cov khoom siv kho qhov muag. Qhov kev ua kom raug uas xav tau hauv cov khoom siv kho qhov muag xws li telescopes, microscopes, thiab koob yees duab xav tau lub hauv paus ruaj khov thiab txhim khu kev qha, thiab granite muab qhov ntawd.
Qhov laj thawj tseem ceeb uas granite nyiam siv hauv kev sib dhos kho qhov muag yog nws qhov kev ruaj khov zoo heev. Cov kab ke kho qhov muag feem ntau rhiab rau kev co thiab kev hloov pauv thermal, uas tuaj yeem ua rau tsis sib haum thiab cuam tshuam hauv daim duab tshwm sim. Cov khoom siv ntawm Granite ua rau nws tswj tau nws cov duab thiab kev ua kom zoo nkauj hauv qab kev hloov pauv ib puag ncig, kom ntseeg tau tias cov khoom siv kho qhov muag tseem sib phim zoo. Qhov kev ruaj khov no yog qhov tseem ceeb rau kev ua tiav cov duab zoo thiab kev ntsuas raug.
Tsis tas li ntawd xwb, granite muaj cov coefficient qis ntawm thermal expansion, uas txhais tau tias nws tsis nthuav dav lossis cog lus ntau nrog kev hloov pauv kub. Cov khoom no tseem ceeb heev rau hauv cov chaw uas muaj kev hloov pauv kub ntau zaus, vim nws pab tswj kev sib phim ntawm cov khoom siv kho qhov muag. Los ntawm kev siv granite ua lub hauv paus lossis lub platform mounting, cov engineers tuaj yeem txo qhov kev pheej hmoo ntawm kev cuam tshuam optical los ntawm cov teebmeem thermal.
Ntxiv rau nws cov khoom siv lub cev, granite yooj yim rau kev siv tshuab thiab ua tiav, thiab tuaj yeem siv los tsim cov mounts thiab kev txhawb nqa rau cov tshuab kho qhov muag tshwj xeeb. Qhov kev hloov pauv no tso cai rau cov neeg tsim qauv los ua kom zoo dua qhov kev ua tau zoo ntawm lawv cov kab ke thaum xyuas kom meej tias cov khoom raug kho kom ruaj khov.
Xaus lus, qhov tseem ceeb ntawm granite hauv kev sib dhos ntawm cov tshuab kho qhov muag tsis tuaj yeem hais ntau dhau. Nws lub zog, kev ruaj khov, thiab kev nthuav dav thermal qis ua rau nws zoo tagnrho rau kev txhawb nqa cov khoom siv kho qhov muag rhiab heev, thaum kawg txhim kho kev ua tau zoo thiab kev ntseeg siab hauv ntau yam kev siv. Thaum thev naus laus zis txuas ntxiv mus, lub luag haujlwm ntawm granite hauv kev tsim kho qhov muag yuav tseem ceeb, kom ntseeg tau tias peb tuaj yeem txuas ntxiv thawb cov kev txwv ntawm kev thaij duab thiab kev ntsuas.
Lub sijhawm tshaj tawm: Lub Ib Hlis-09-2025