Hauv kev lag luam ntawm high-end manufacturing, XYZ precision gantry platform muaj cov kev cai nruj heev rau kev ua haujlwm ntawm cov ntaub ntawv. Ntuj granite, nrog cov khoom zoo heev, tau dhau los ua kev xaiv zoo tshaj li marble.
I. Kev sib piv ntawm Mechanical Properties
Hardness thiab hnav tsis kam
Granite feem ntau yog tsim los ntawm cov zaub mov xws li quartz thiab feldspar, nrog rau Mohs hardness ntawm 6 mus rau 7. Nws tuaj yeem tiv taus hnav thiab tuav qhov tseeb ntawm lub platform thaum siv mus ntev thiab nquag siv tshuab. Nyob rau hauv sib piv, lub ntsiab tseem ceeb ntawm marble, calcium carbonate, muaj ib tug kuj tsawg hardness, nrog ib tug Mohs hardness ntawm tsuas yog 3 mus rau 5. Nyob rau hauv tib lub kev sib txhuam thiab siab, nws yog ntau nquag mus khawb thiab hnav, uas cuam tshuam rau qhov tseeb thiab kev pab cuam lub neej ntawm lub platform.
Rigidity thiab Stability
Granite muaj cov qauv ntom ntom, nrog cov ntxhia hauv sab hauv uas kaw ze sib cuam tshuam, tso nws txoj kev ua kom zoo nkauj heev. Thaum raug hnyav loads thiab mechanical stresses, nws muaj peev xwm tswj cov txheej txheem stability thiab tsis yog deformation. Txawm li cas los xij, marble muaj ntau qhov kev ntxhib los mos thiab cov kab nrib pleb me me sab hauv, thiab nws cov rigidity kuj tsis muaj zog. Thaum lub sij hawm siab loads los yog siv mus sij hawm ntev, nws yuav tsim cov kab nrib pleb los yog deformations vim kev ntxhov siab concentration, cuam tshuam rau kev ruaj ntseg thiab qhov tseeb ntawm lub platform.
Ii. Qhov sib txawv ntawm kev ua haujlwm thermal
Coefficient ntawm thermal expansion
Granite muaj cov coefficient qis heev ntawm thermal expansion, kwv yees li 4-8 × 10⁻⁶ / ℃, thiab nws qhov loj me hloov pauv me ntsis thaum kub sib txawv. Qhov no yog ib qho tseem ceeb rau high-precision XYZ precision gantry platforms, uas tuaj yeem tiv thaiv thermal deformation tshwm sim los ntawm qhov kub thiab txias thiab xyuas kom meej tias qhov chaw qhov tseeb ntawm lub platform tsis cuam tshuam. Lub coefficient ntawm thermal expansion ntawm marble yog kuj siab. Nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias hloov pauv, nws yog qhov ua rau thermal expansion thiab contraction, uas tuaj yeem ua rau muaj kev hloov pauv ntawm qhov loj thiab qhov tseeb ntawm lub platform.
Thermal conductivity
Granite muaj cov thermal conductivity tsawg. Thaum rhuab hauv zos, cov cua sov diffuses maj mam, uas tuaj yeem txo qhov tshwm sim ntawm thermal deformation. Marble muaj cov thermal conductivity siab. Nyob rau hauv daim ntawv thov scenarios xws li laser ua uas tsim kom muaj ib tug loj npaum li cas ntawm tshav kub, lub tshav kub yog feem ntau yuav ua thiab diffused, uas ua rau uneven thermal deformation ntawm lub platform thiab cuam tshuam rau kev ua hauj lwm raug.
Iii. Qhov sib txawv ntawm damping yam ntxwv
Granite muaj cov khoom damping zoo heev, thiab nws cov qauv sab hauv tuaj yeem nqus tau zoo thiab ua kom lub zog vibration. Thaum lub sijhawm ua haujlwm ntawm lub platform gantry, kev vibration tuaj yeem nrawm nrawm, txo qhov cuam tshuam ntawm kev co ntawm kev ua haujlwm raug thiab cov khoom siv lifespan. Lub damping kev ua tau zoo ntawm marble yog qhov tsis muaj zog, ua rau nws nyuaj rau kev ua kom nrawm nrawm zoo li granite, uas tsis tsim nyog rau kev ua haujlwm precision.
Iv. Chemical Stability Considerations
Granite muaj zog tshuaj stability thiab tiv taus acid thiab alkali corrosion. Hauv qee qhov chaw ua haujlwm tshwj xeeb, xws li cov tshuaj reagents lossis corrosive gases, granite platforms tuaj yeem tswj cov khoom ruaj khov ntawm cov khoom thiab tiv thaiv corrosion. Cov khoom tseem ceeb ntawm marble, calcium carbonate, yog qhov ua rau muaj tshuaj lom neeg nrog cov kua qaub thiab yooj yim corroded nyob rau hauv acidic ib puag ncig, ua rau kev puas tsuaj rau lub platform nto thiab txo qhov raug.
V. Kev Pabcuam Lub Neej thiab Kev Kho Tus Nqi
Vim qhov zoo ntawm granite nyob rau hauv cov nqe lus ntawm hardness, hnav tsis kam thiab thermal stability, nws cov kev pab cuam lub neej yog feem ntau ntev dua li ntawm marble. Ntxiv mus, granite tsis yooj yim rau hnav thiab tsim kua muag, muaj tsawg deformation, lub voj voog txij nkawm ntev, thiab tus nqi kho qis. Vim muaj teeb meem xws li hnav yooj yim thiab tsis zoo thermal stability, marble yuav tsum tau calibration ntau zaus, kho thiab hloov, ua rau cov nqi kho mob ntau dua.
Nyob rau hauv xaus, ntuj granite outperforms marble nyob rau hauv ntau yam xws li txhua yam khoom, thermal zog, damping yam ntxwv, tshuaj stability, kev pab cuam lub neej thiab txij nkawm nqi. Yog li ntawd, nws tau dhau los ua cov khoom siv zoo tshaj plaws rau XYZ precision gantry platforms.
Post lub sij hawm: Jun-12-2025