Nyob rau hauv lub ntiaj teb no ntawm precision metrology, lub Coordinate Measuring Machine (CMM) tsuas yog raws li qhov tseeb raws li nws siv dav hlau. Rau aerospace, tsheb, thiab cov cuab yeej siv kho mob, kev yos hav zoov rau "zero-}point" qhov tseeb pib tsis yog nrog software lossis kev sojntsuam, tab sis nrog lub pob zeb. Xaiv lub siab - zoo granite nto phaj rau CMM calibration yog qhov kev txiav txim siab tseem ceeb tshaj plaws uas tus thawj coj hauv chav kuaj tuaj yeem ua kom tiv thaiv kev ntsuas ntsuas thiab xyuas kom meej tias cov ntawv ceeb toom zoo tuav tau raws li kev soj ntsuam thoob ntiaj teb.
Lub luag haujlwm tseem ceeb ntawm granite nto phaj rau CMM daim ntawv thov yog muab qhov chaw ruaj khov, ultra- ib puag ncig tiaj tus uas tiv thaiv cov neeg kho tshuab thiab ib puag ncig kev ntxhov siab uas cuam tshuam rau lwm yam hlau. Txawm li cas los xij, nrog ntau qib thiab hom pob zeb muaj nyob thoob ntiaj teb, qhov sib txawv ntawm "tus qauv" phaj thiab "metrology- qib" lub hauv paus yuav tsum muaj kev nkag siab tob txog cov ntaub ntawv tshawb fawb thiab cov qauv pov thawj thoob ntiaj teb.
Nkag siab txog JJG117 Tus Qauv thiab Kev Ua Raws Li Ntiaj Teb
Thaum ntsuas agranite nto phajrau CMM, ib qho ntawm thawj cov qauv kev ntsuas los txiav txim siab yog JJG117 tus qauv. Cov kev cai no txhais cov txheej txheem pov thawj rau cov phaj saum npoo, kom ntseeg tau tias cov khoom siv hardness, deg zoo nkauj, thiab kev ncaj ncees raws li cov kev cai tshwj xeeb. Txawm hais tias ntau lub tuam txhab North American thiab European yuav paub ntau dua nrog ISO lossis DIN cov qauv, JJG117 tus qauv tau txais txiaj ntsig zoo rau nws txoj hauv kev nruj rau pob zeb ntom ntom thiab ntxhia homogeneity.
Xaiv ib lub phaj uas ua raws li cov txheej txheem nruj no kom ntseeg tau tias lub pob zeb tau dhau qhov tsim nyog "kev laus" txheej txheem. Ntuj granite yuav tsum tau tso cai tso tawm nws sab hauv geological kev nyuaj siab ua ntej nws lapped rau nws cov duab kawg. Yog tias cov txheej txheem no tau maj nrawm, lub phaj yuav "ua pa" lossis ua tsis taus rau thawj ob xyoos ntawm kev siv, ua rau koj CMM calibration tsis muaj txiaj ntsig hauv lub hlis. Ntawm UNPARALLELED Group, peb Jinan Black granite tshaj cov kev cai no, muab lub hauv paus ruaj khov rau ntau xyoo.
Lub luag haujlwm tseem ceeb ntawm Flatness kam rau ua hauv Volumetric raug
Cov lus nug ntau tshaj plaws los ntawm cov kws ua haujlwm yog: "Qhov twg qib ntawm flatness kam rau ua kuv xav tau tiag tiag?" Cov lus teb yog nyob ntawm koj CMM qhov kev daws teeb meem. Rau siab -kawg choj CMMs siv nyob rau hauv semiconductor lossis micro- kev tshuaj xyuas cov cuab yeej, Qib 00 lossis txawm Qib 000 (Lab Qib) yog qhov yuav tsum tau ua.
Flatness kam rau ua yog hais txog qhov kev ncua deb ntawm ob lub dav hlau sib luag uas muaj tag nrho cov ntsiab lus ntawm qhov chaw. Yog tias koj qhov kev ua siab ntev ntev ntev dhau lawm, CMM cov nyiaj them software yuav tsum tau ua haujlwm hnyav dua kom "mathematically" flatten lub nto, uas tuaj yeem qhia txog qhov tsis raug ntawm microscopic thaum lub sijhawm sojntsuam. Lub phaj nrog lub siab zoo, tes-lapped tiav txo qhov "suab nrov" hauv Z-axis, tso cai rau lub tshuab ntes qhov tseeb geometry ntawm qhov tsis muaj kev cuam tshuam ntawm qhov tsis sib xws.
Vim li cas Material Density Outperforms Synthetic Alternatives
Nyob rau hauv xyoo tas los no, qee lub tuam txhab tau sim cov khoom siv hluavtaws lossis epoxy-raws li daim hlau. Txawm li cas los xij, rau CMM calibration, tsis muaj dab tsi tseem ua tau zoo ntawm kev ua haujlwm ntawm ntuj dub granite. Cov khoom siv lub cev ntawm cov granite dub suav nrog qhov nqus dej tsawg kawg nkaus thiab muaj kev hloov pauv siab ntawm elasticity. Qhov no txhais tau hais tias yog tias lub cav hnyav tau muab tso rau ntawm granite nto phaj rau CMM, lub pob zeb yuav tsis "ceep" los yog deform nyob rau hauv lub load.
Tsis tas li ntawd, qhov tsis yog -conductive thiab non-magnetic xwm ntawm granite yog qhov tseem ceeb rau CMMs uas siv cov ntsuas hluav taws xob rhiab heev. Tsis zoo li cam khwb cia hlau, granite yuav tsis ua magnetized, kom ntseeg tau tias koj calibration tau tsis skewed los ntawm localized magnetic teb. Qhov "inert" zoo no yog vim li cas granite tseem yog tus huab tais tsis muaj kev sib cav ntawm lub chaw kuaj ntsuas ntsuas.
Environmental Stability thiab Thermal Inertia
Lub chaw kuaj ntsuas ntsuas tsis tshua muaj qhov chaw zoo li qub. Txhua zaus lub qhov rooj qhib lossis lub teeb qhib, qhov kub hloov pauv. Ib tug hwm granite nto phaj rau CMM ua raws li lub thermal buffer. Vim nws cov thermal inertia loj heev, nws tsis nthuav lossis cog lus sai rau cov lus teb rau cov spikes. Lub sijhawm qeeb qeeb no yog qhov tso cai rau CMM los tswj nws qhov kev ntsuas thoob plaws hauv 24-teev kev tsim khoom.
Thaum xaiv koj lub phaj, xyuas kom meej tias cov chaw tsim khoom muab daim ntawv pov thawj calibration uas qhia txog qhov profile. Qhov "daim ntawv qhia" no yog qhov tseem ceeb rau koj CMM qhov kev ua yuam kev - cov software them nyiaj. Yog tsis muaj daim ntawv pov thawj traceable uas hais txog kev ua raws li JJG117 tus qauv lossis sib npaug, lub phaj tsuas yog ib pob zeb, tsis yog ib qho khoom siv.
Xaus: Kev nqis peev hauv lub hauv paus ntawm Kev Zoo
Xaiv txoj cai granite nto phaj rau CMM calibration yog kev nqis peev hauv kev ncaj ncees ntawm koj hom. Los ntawm qhov tseem ceeb ntawm qib siab - qib flatness kam rau ua thiab ua kom lub pob zeb ua tau raws li JJG117 tus qauv, koj tau tshem tawm qhov sib txawv tseem ceeb tshaj plaws hauv koj cov saw hlau ntsuas.
Ntawm UNPARALLELED Group, peb tshwj xeeb hauv kev tsim cov "tsis sib xws" lub hauv paus uas lub ntiaj teb cov cav tov meej tshaj plaws sawv ntsug. Peb tsis tsuas yog muab qhov chaw; peb muab qhov tseeb tias koj qhov kev ntsuas yog qhov tseeb, koj cov khoom ua raws, thiab koj cov khoom lag luam yog flawless.