Ua ntej, qhov zoo ntawm granite puag
1. High rigidity thiab stability
Granite muaj qhov ntom ntom (2.6-3.1g / cm³), thiab Young's modulus (elastic modulus) tuaj yeem ncav cuag 50-100 GPa, ntau dua li cov hlau zoo tib yam (txog 200 GPa), tab sis vim nws cov qauv isotropic siv lead ua, nws yuav luag tsis muaj cov yas deformation hauv kev siv mus ntev. Piv nrog rau cov ntaub ntawv hlau, granite thermal expansion coefficient tsawg heev (kwv yees li 5 × 10⁻⁶ / ℃), nyob rau hauv qhov kub thiab txias ib puag ncig kuj tseem tuaj yeem tswj qhov kev ruaj ntseg zoo, zam vim thermal expansion txias contraction cuam tshuam cov khoom raug.
2. Kev co zoo heev txo kev ua haujlwm
Cov qauv siv lead ua sab hauv ntawm granite muaj qhov siab sab hauv damping, uas tuaj yeem nqus tau qhov kev vibration siab thiab txo qhov tshwm sim resonance. Piv nrog rau cov hlau puag, granite muaj lub zog vibration attenuation muaj peev xwm nyob rau hauv thaj tsam ntawm 20Hz-1kHz, muab ib qho ntxiv "huv" thawj qhov chaw rau lub zog vibration cais tawm thiab txo lub nra ntawm kev ua haujlwm tom ntej.
3. Corrosion kuj, tsis-magnetic, dav siv
Granite tshuaj stability, acid thiab alkali corrosion kuj, yuav tsis xeb los yog oxidation, haum rau huv chav tsev, high humidity los yog corrosive ib puag ncig. Tsis tas li ntawd, granite yog cov khoom siv tsis sib nqus, yuav tsis cuam tshuam nrog cov cuab yeej precision (xws li electron microscopy, cov khoom siv ntsuas magnetic, thiab lwm yam), haum rau electromagnetic rhiab daim ntawv thov scenarios.
4. Lub neej ua haujlwm ntev, tus nqi tu qis
Granite hardness siab (Mohs hardness 6-7), hnav tsis kam, siv ntev tsis yooj yim rau hnav lossis deformation, lub neej kev pabcuam tuaj yeem ncav cuag ntau tshaj 20 xyoo. Piv nrog cov ntaub ntawv hlau, nws tsis tas yuav tsum tau kho cov xeb tsis tu ncua lossis lubrication, thiab cov nqi kho mob tsawg heev.
5.High flatness thiab nto tiav
Los ntawm kev sib tsoo thiab polishing, qhov flatness ntawm granite puag tuaj yeem ncav cuag 0.005mm / m², thiab qhov chaw roughness Ra≤0.2μm, kom ntseeg tau qhov zoo meej haum nrog cov khoom siv precision (xws li optical platform, laser interferometer) thiab txo cov kev sib dhos yuam kev.
Ob, qhov shortcomings ntawm granite puag
1. Qhov hnyav hnyav, tsis yooj yim rau nqa thiab nruab
Granite muaj qhov ntom ntom ntom thiab hnyav dua aluminium lossis steel ntawm tib lub loj, xws li cov cuab yeej tshwj xeeb yuav tsum tau siv cov cuab yeej siv.
2. High brittleness, tsis muaj zog cuam tshuam tsis kam
Txawm hais tias granite muaj qhov tawv tawv, nws yog cov khoom siv tawv tawv thiab tuaj yeem tawg lossis tawg thaum raug cuam tshuam (xws li ntog lossis sib tsoo). Yog li ntawd, yuav tsum tau saib xyuas ntxiv thaum lub caij tsheb thauj mus los thiab kev teeb tsa kom tsis txhob muaj kev vibration loj lossis cuam tshuam.
3. Kev ua haujlwm yog qhov nyuaj thiab tus nqi customization yog siab
Kev ua cov granite xav tau cov cuab yeej siv tshuab tshwj xeeb (xws li CNC pob zeb engraving tshuab) thiab cov cuab yeej pob zeb diamond, thiab kev ua haujlwm qeeb qeeb, ua rau tus nqi siab ntawm kev hloov kho ntawm cov txheej txheem nyuaj (xws li threaded qhov, qhov tshwj xeeb zoo li grooves) thiab lub voj voog xa khoom ntev.
4. Kev hloov kub tam sim ntawd yuav ua rau microcracks
Txawm hais tias granite muaj qhov zoo thermal stability, yog tias nws ntsib qhov kub thiab txias hloov pauv (xws li txav mus los ntawm qhov kub thiab txias ib puag ncig mus rau qhov kub thiab txias), qhov kev ntxhov siab me me tuaj yeem tshwm sim sab hauv, thiab kev sib txuas mus ntev yuav cuam tshuam rau lub zog ntawm cov qauv. Yog li ntawd, nws yuav tsum tau siv nrog ceev faj nyob rau hauv ib puag ncig nrog loj kub sib txawv.
5. Tsis muaj vuam lossis kev ua haujlwm thib ob
Lub hauv paus hlau tuaj yeem hloov kho los ntawm vuam lossis machining, tab sis thaum lub granite raug tsim, nws yuav luag tsis yooj yim sua kom hloov cov qauv (xws li drilling, txiav), yog li cov qauv tsim yuav tsum raug npaj kom tsis txhob hloov tom qab.
Lub sij hawm xa tuaj: Plaub Hlis-11-2025