Granite ntsuas platforms, raws li indispensable siv cov cuab yeej nyob rau hauv precision xeem, yog renowned rau lawv siab hardness, tsis tshua muaj thermal expansion coefficient, thiab zoo heev tshuaj stability. Lawv tau siv dav hauv metrology thiab kuaj ib puag ncig. Txawm li cas los xij, siv lub sijhawm ntev, cov platforms no tsis muaj kev tiv thaiv tag nrho rau kev deformation, thiab txhua yam teeb meem tuaj yeem cuam tshuam ncaj qha rau kev ntseeg siab ntawm kev ntsuas ntsuas. Qhov ua rau granite platform deformation yog complex, ze ze rau sab nraud ib puag ncig, kev siv txoj kev, installation txoj kev, thiab cov khoom siv.
Feem ntau, qhov hloov pauv ntawm qhov kub thiab txias thiab av noo feem ntau yog qhov tseem ceeb rau lub platform deformation. Txawm hais tias granite lub linear expansion coefficient kuj tsis tshua muaj, thermal expansion thiab contraction tseem tuaj yeem ua rau me me tawg los yog hauv zos warping thaum kub hloov pauv ntau dua ± 5 ° C. Platforms muab tso rau ze ntawm qhov chaw tshav kub los yog raug tshav ntuj rau lub sij hawm ntev yog qhov tseem ceeb dua rau deformation vim qhov kub ntawm qhov sib txawv hauv cheeb tsam. Qhov cuam tshuam ntawm cov av noo kuj tseem ceeb heev. Txawm hais tias granite muaj qhov nqus dej tsawg, nyob rau hauv ib puag ncig nrog cov av noo siab tshaj 70%, kev nkag mus ntev ntawm cov dej tuaj yeem txo qhov tawv tawv thiab txawm tias ua rau thaj chaw nthuav dav, cuam tshuam lub platform kev ruaj ntseg.
Ntxiv nrog rau tej yam ib puag ncig, kev thauj khoom tsis zoo kuj yog ib qho ua rau deformation. Granite platforms yog tsim los nrog lub peev xwm load, feem ntau yog ib feem kaum ntawm lawv lub zog compressive. Tshaj qhov ntau yam no tuaj yeem ua rau hauv zos crushing lossis grain spalling, thaum kawg ua rau lub platform poob nws qhov qub precision. Tsis tas li ntawd, qhov chaw ua haujlwm tsis sib xws tuaj yeem ua rau muaj kev kub ntxhov ntau dhau ntawm lub ces kaum lossis cheeb tsam, ua rau muaj kev ntxhov siab thiab, dhau sijhawm, hauv zos deformation.
Lub platform txoj kev teeb tsa thiab kev txhawb nqa kuj cuam tshuam rau nws txoj kev ruaj ntseg mus ntev. Yog tias qhov kev txhawb nqa nws tus kheej tsis yog qib lossis cov ntsiab lus txhawb nqa tsis sib xws, lub platform yuav muaj kev sib txuam tsis sib xws hauv lub sijhawm, inevitably ua rau deformation. Peb-point kev txhawb nqa yog ib txoj hauv kev tsim nyog rau cov platform me me thiab nruab nrab. Txawm li cas los xij, rau cov platform loj uas hnyav tshaj ib tuj, siv peb-point txhawb nqa tuaj yeem ua rau lub hauv paus ntawm lub platform mus rau hauv dej vim qhov sib txawv loj ntawm cov ntsiab lus txhawb nqa. Yog li ntawd, cov platforms loj feem ntau xav tau ntau yam los yog cov qauv txhawb nqa los faib kev ntxhov siab.
Tsis tas li ntawd, txawm hais tias granite undergoes natural aging, kev tso tawm ntawm residual kev nyuaj siab nyob rau hauv lub sij hawm tseem tuaj yeem ua rau me deformation. Yog hais tias cov tshuaj acidic lossis alkaline muaj nyob rau hauv qhov chaw ua haujlwm, cov khoom siv yuav raug tshuaj lom neeg, txo qhov tawv tawv thiab cuam tshuam rau lub platform qhov tseeb.
Txhawm rau tiv thaiv thiab txo cov teeb meem no, ntau yam kev tiv thaiv yuav tsum tau ua. Qhov chaw ua haujlwm zoo tshaj plaws yuav tsum muaj qhov kub ntawm 20 ± 2 ° C thiab cov av noo ntawm 40% -60%, zam kev tshav ntuj ncaj qha thiab tshav kub. Thaum lub sij hawm kev teeb tsa, siv cov kev sib cais ntawm kev vibration los yog cov roj hmab pads, thiab rov xyuas cov qib uas siv cov qib los yog hluav taws xob tester. Thaum lub sij hawm siv txhua hnub, qhov ntsuas lub peev xwm yuav tsum tau ua raws li nruj me ntsis. Cov workpieces yuav tsum tau khaws cia nyob rau hauv 80% ntawm qhov siab tshaj plaws load, thiab yuav tsum tau muab tso rau dispersed li sai tau kom tsis txhob localized siab concentration. Rau cov platform loj, siv cov qauv kev txhawb nqa ntau lub ntsiab lus tuaj yeem txo qhov kev pheej hmoo ntawm deformation vim qhov hnyav tuag.
Qhov tseeb ntawm granite platforms yuav tsum tau soj ntsuam thiab tu. Nws yog feem ntau pom zoo kom ua ib qho kev soj ntsuam flatness txhua rau lub hlis. Yog tias qhov kev ua yuam kev dhau ntawm tus qauv kam rau ua, lub platform yuav tsum raug xa rov qab mus rau lub Hoobkas kom rov sib tsoo lossis kho. Cov khawb me me lossis qhov pits ntawm lub platform nto tuaj yeem kho nrog pob zeb diamond abrasive muab tshuaj txhuam kom rov ua kom lub ntsej muag roughness. Txawm li cas los xij, yog tias deformation hnyav thiab nyuaj rau kho, lub platform yuav tsum tau hloov tam sim ntawd. Thaum tsis siv, nws yog qhov zoo tshaj plaws los npog lub platform nrog cov ntawv pov thawj plua plav kom tsis txhob muaj plua plav thiab khaws cia rau hauv qhov chaw qhuav, qhov cua. Thaum lub sijhawm thauj mus los, siv lub thawv ntoo thiab cov ntaub ntawv cushioning los tiv thaiv kev vibration thiab pob.
Feem ntau, thaum granite ntsuas platforms muab cov khoom zoo ntawm lub cev, lawv tsis muaj peev xwm ua rau deformation. Los ntawm kev tswj hwm ib puag ncig kom zoo, kev txhawb nqa tsim nyog, kev tswj xyuas nruj, thiab kev saib xyuas tsis tu ncua, qhov kev pheej hmoo ntawm deformation tuaj yeem txo qis, ua kom muaj qhov tseeb thiab ruaj khov nyob rau lub sijhawm siv ntev, muab kev txhawb nqa zoo rau kev ntsuas qhov tseeb.
Lub sij hawm xa tuaj: Sep-10-2025