Ultra-precision motion module: Granite precision base VS cast base.

Hauv kev siv cov khoom siv ultra-precision motion module, lub hauv paus, ua lub hauv paus tseem ceeb, ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm lub module. Granite precision base thiab cast base muaj lawv tus kheej cov yam ntxwv, thiab qhov sib txawv ntawm lawv yog qhov pom tseeb.
I. Kev Ruaj Ntseg
Tom qab ntau lab xyoo ntawm kev hloov pauv geological, cov qauv sab hauv yog ntom thiab sib xws, feem ntau yog quartz, feldspar thiab lwm yam minerals sib xyaw ua ke. Cov qauv tshwj xeeb no muab kev ruaj khov zoo heev thiab tuaj yeem tiv taus kev cuam tshuam sab nraud. Hauv lub chaw ua haujlwm tsim khoom siv hluav taws xob, cov khoom siv peripheral khiav ntau zaus, thiab lub hauv paus granite tuaj yeem txo qhov kev co ntawm lub zog ultra-precision motion module xa mus rau huab cua ntab los ntawm ntau dua 80%, ua kom ntseeg tau tias lub module txav mus los du thiab muab kev lees paub zoo rau cov txheej txheem siab xws li lithography thiab etching ntawm chip manufacturing.

Txawm hais tias lub hauv paus casting tuaj yeem tiv thaiv kev co rau qee qhov, tej zaum yuav muaj qee qhov tsis zoo xws li cov xuab zeb qhov thiab cov qhov hauv cov txheej txheem casting, uas yuav txo qhov sib xws thiab kev ruaj khov ntawm cov qauv. Nyob rau hauv lub ntsej muag ntawm kev co siab thiab lub zog siab, lub peev xwm attenuation vibration tsis zoo li granite hauv paus, ua rau tsis muaj kev ruaj khov ntawm ultra-precision motion module ntawm lub air float, uas cuam tshuam rau kev ua thiab kev kuaj pom tseeb ntawm cov khoom siv.
Qhov thib ob, qhov tseeb khaws cia
Granite thermal expansion coefficient yog qis heev, feem ntau yog 5-7 × 10⁻⁶ / ℃, nyob rau hauv qhov kub thiab txias hloov pauv, qhov hloov pauv loj yog tsawg heev. Hauv thaj chaw ntawm astronomy, lub ultra-precision motion module rau kev kho kom zoo ntawm lub lens telescope yog paired nrog lub granite puag, txawm tias qhov sib txawv ntawm qhov kub thiab txias ntawm hnub thiab hmo ntuj yog loj, nws tuaj yeem ua kom ntseeg tau tias qhov tseeb ntawm lub lens yog khaws cia ntawm qib sub-micron, pab cov kws tshawb fawb kom pom tseeb lub cev nyob deb ntawm lub ntiaj teb.
Cov khoom siv hlau uas siv feem ntau yog hlau cam khwb cia, xws li hlau cam khwb, qhov coefficient ntawm thermal expansion yog qhov siab heev, txog li 10-20 × 10⁻⁶/℃. Thaum qhov kub hloov pauv, qhov loj me hloov pauv meej meej, uas yooj yim ua rau muaj kev hloov pauv thermal ntawm lub ultra-precision motion module ntawm lub air float, ua rau qhov tseeb ntawm kev txav mus los txo qis. Hauv cov txheej txheem sib tsoo lens optical uas rhiab heev rau qhov kub thiab txias, qhov kev hloov pauv ntawm lub hauv paus cam khwb nyob rau hauv qhov cuam tshuam ntawm qhov kub thiab txias yuav ua rau qhov sib txawv ntawm qhov kev sib tsoo lens precision dhau qhov ntau thiab cuam tshuam rau qhov zoo ntawm lens.
Qhov thib peb, hnav tsis kam
Granite qhov nyuaj siab heev, Mohs hardness tuaj yeem ncav cuag 6-7, muaj zog hnav tsis kam. Hauv chav kuaj khoom siv, feem ntau siv air float ultra-precision motion module, granite base tuaj yeem tiv taus qhov sib txhuam ntawm air float slider, piv rau lub cast base ib txwm, tuaj yeem ntev lub voj voog txij nkawm ntawm module ntau dua 50%, txo cov nqi txij nkawm khoom siv, thiab xyuas kom meej tias kev tshawb fawb txuas ntxiv mus.
Yog tias lub hauv paus casting yog ua los ntawm cov khoom siv hlau ib txwm muaj, qhov nyuaj yog qhov tsawg, thiab qhov chaw yooj yim hnav nyob rau hauv kev sib txhuam ntev ntawm lub tshuab cua ntab slider, uas cuam tshuam rau qhov tseeb ntawm kev txav mus los thiab du ntawm lub ultra-precision motion module ntawm lub tshuab cua ntab, xav tau kev saib xyuas thiab hloov pauv ntau zaus, ua rau tus nqi siv thiab lub sijhawm tsis ua haujlwm ntau ntxiv.
Qhov thib plaub, tus nqi tsim khoom thiab kev ua haujlwm nyuaj
Tus nqi yuav khoom siv granite yog siab, kev khawb av, kev thauj mus los nyuaj, kev ua tiav xav tau cov khoom siv tshaj lij thiab thev naus laus zis, xws li kev txiav siab, sib tsoo, polishing, thiab lwm yam, cov nqi tsim khoom siab. Thiab vim nws qhov nyuaj siab, brittleness, nyuaj ua, yooj yim rau ntug tawg, tawg thiab lwm yam tsis zoo, qhov seem seem siab.
Cov khoom siv raw ntawm cov khoom siv casting yog los ntawm ntau qhov chaw, tus nqi qis dua, cov txheej txheem casting yog laus, qhov nyuaj ua tiav yog me me, thiab cov khoom loj tuaj yeem ua tiav los ntawm pwm, nrog rau kev ua haujlwm siab thiab tus nqi tswj tau. Txawm li cas los xij, kom ua tiav qhov tseeb siab thiab ruaj khov zoo li cov khoom siv granite, cov txheej txheem casting thiab cov kev cai tom qab ua tiav yog nruj heev, thiab tus nqi kuj tseem yuav nce siab heev.
Hauv kev xaus, granite precision base muaj qhov zoo dua hauv cov xwm txheej ntawm cov qauv txav mus los ultra-precision nrog qhov tseeb siab, ruaj khov thiab hnav tsis kam. Lub hauv paus casting muaj qee qhov zoo hauv tus nqi thiab kev yooj yim ua tiav, thiab nws tsim nyog rau cov sijhawm uas qhov yuav tsum tau ua kom raug yog qhov tsawg thiab kev nrhiav kev siv nyiaj kom zoo.