Nyob rau hauv high-precision manufacturing thiab metrology, granite slab yog lub hauv paus tsis muaj kev sib cav - qhov zero-point siv rau kev ntsuas qhov ntev. Nws lub peev xwm los tuav lub dav hlau nyob ze tsis yog tsuas yog ib qho kev zoo nkauj xwb, tab sis qhov tshwm sim ntawm cov txheej txheem tswj kom zoo zoo, ua raws li kev qhuab qhia, kev saib xyuas txhua hnub. Tab sis dab tsi yog txoj kev taug kev ntawm granite slab yuav siv sij hawm kom ua tiav zoo li no, thiab cov txheej txheem dab tsi tsim nyog los txhawb nqa nws? Rau cov engineers thiab cov thawj coj zoo, kev nkag siab ntawm ob qho tib si ntawm qhov kev ua tau zoo thiab cov kauj ruam tsim nyog los khaws nws yog qhov tseem ceeb rau kev tswj hwm kev tsim khoom.
Ntu 1: Cov Txheej Txheem Ua Haujlwm—Engineering Flatness
Txoj kev taug kev ntawm granite slab, los ntawm qhov ntxhib-txiav thaiv mus rau qhov siv-qib phaj saum npoo, suav nrog kev sib tsoo, ruaj khov, thiab ua tiav theem, txhua tus tsim los ua kom txo qis qhov yuam kev.
Thaum pib, tom qab txiav, lub slab yog raug rau Rough Shaping thiab sib tsoo. Cov theem no tshem tawm cov khoom siv loj los tsim qhov kwv yees qhov kawg geometry thiab ntxhib flatness. Qhov tseem ceeb tshaj plaws, cov txheej txheem no kuj tseem ua haujlwm tso tawm ntau qhov kev ntxhov siab uas tshwm sim nyob rau hauv lub pob zeb thaum lub sij hawm quarrying thiab pib txiav. Los ntawm kev tso cai rau lub slab kom "tshem tawm" thiab rov ua kom ruaj khov tom qab txhua kauj ruam tshem tawm cov khoom tseem ceeb, peb tiv thaiv qhov kev ncua deb yav tom ntej, ua kom ruaj khov mus ntev.
Qhov kev hloov pauv tiag tiag tshwm sim thaum Lub Caij Nplooj Ntoos Hlav ntawm Precision Lapping. Lapping yog qhov kawg, cov txheej txheem tshwj xeeb uas ua kom lub ntsej muag ib nrab tiaj tus rau hauv lub dav hlau siv tau ntawv pov thawj. Qhov no tsis yog txhua yam sib tsoo; nws yog kev ua haujlwm zoo, tsis tshua muaj siab, ua haujlwm siab. Peb siv cov khoom zoo, xoob xoob xoob-feem ntau pob zeb diamond slurry-raug tshem tawm hauv cov kua nruab nrab, siv nruab nrab ntawm granite nto thiab cov hlau cam khwb cia hlau. Cov lus tsa suab yog ua tib zoo tswj kom ntseeg tau tias cov khoom siv tsis sib xws raug tshem tawm thoob plaws qhov chaw. Qhov nruab nrab cov nyhuv no, rov ua manually thiab mechanically nyob rau hauv cov kauj ruam rov qab, maj mam refines lub flatness mus rau hauv microns los yog sub-microns (ua tau raws li cov qauv nruj xws li ASME B89.3.7 los yog ISO 8512). Qhov kev ua tiav ntawm no yog tsawg dua ntawm lub tshuab thiab ntau ntxiv txog tus neeg teb xov tooj cov txuj ci, uas peb pom tias yog ib qho tseem ceeb, tsis tuaj yeem hloov khoom siv tes ua.
Ntu 2: Kev Saib Xyuas—Tus yuam sij rau kev ruaj ntseg
Granite nto phaj yog qhov ntsuas qhov tseeb, tsis yog lub rooj zaum ua haujlwm. Thaum muaj ntawv pov thawj, nws lub peev xwm los tswj tau qhov tseeb yog nyob ntawm tus neeg siv cov kev cai thiab ib puag ncig.
Environmental Control yog ib qho tseem ceeb tshaj plaws uas cuam tshuam rau qhov tseeb ntawm granite. Thaum granite muaj cov coefficient qis ntawm thermal expansion (COE), qhov kub thiab txias sib txawv ntawm qhov chaw saum toj thiab hauv qab (qhov ntsuas kub ntsug) tuaj yeem ua rau tag nrho cov slab rau subtly dome lossis warp. Yog li ntawd, lub phaj yuav tsum tau khaws cia kom deb ntawm lub hnub ncaj qha, cua txias cua txias, thiab cov cua kub ntau dhau. Qhov chaw zoo tshaj plaws tswj qhov ruaj khov 68 ° F ± 1 ° F (20 ℃ ± 0.5 ℃).
Hais txog kev siv thiab tu raws tu qauv, kev siv tsis tu ncua hauv cheeb tsam ua rau hnav tsis sib xws. Txhawm rau tiv thaiv qhov no, peb qhia ib ntus tig lub pob zeb ntawm nws qhov chaw sawv ntsug thiab faib cov kev ntsuas ntsuas thoob plaws txhua qhov chaw. Kev tu txhua hnub yog qhov yuav tsum tau ua. Plua plav thiab cov khib nyiab zoo ua raws li abrasives, ua kom hnav. Tsuas yog cov tshuaj ntxuav granite tshwj xeeb, lossis cov kua dej ntshiab isopropyl, yuav tsum tau siv. Tsis txhob siv cov tshuaj ntxuav tes hauv tsev lossis cov tshuaj ntxuav dej uas tuaj yeem tso cov khoom seem nplaum los yog, hauv cov dej, txias ib ntus thiab ua kom lub ntsej muag tsis zoo. Thaum lub phaj tsis ua haujlwm, nws yuav tsum tau npog nrog lub hau huv, mos, tsis muaj abrasive.
Thaum kawg, hais txog Recalibration thiab Renewal, txawm tias muaj kev saib xyuas zoo meej, hnav yog yam tsis muaj kev zam. Nyob ntawm qib kev siv (piv txwv li, Qib AA, A, lossis B) thiab kev ua haujlwm, lub phaj saum npoo granite yuav tsum tau rov ua dua tshiab txhua 6 txog 36 lub hlis. Tus kws tshaj lij uas tau lees paub siv cov cuab yeej xws li autocollimators lossis laser interferometers los qhia qhov sib txawv ntawm qhov chaw. Yog tias lub phaj ntog sab nraum nws qib siab, ZHHIMG muaj cov kws tshaj lij kev pabcuam rov ua dua. Cov txheej txheem no suav nrog kev nqa qhov kev txiav txim siab rov qab rau ntawm qhov chaw lossis rau peb qhov chaw kom rov ua kom zoo dua qub uas tau lees paub flatness, zoo rov kho lub cuab yeej lub neej.
Los ntawm kev nkag siab txog cov txheej txheem tsim cov ceg txheem ntseeg siab thiab cog lus rau lub sijhawm saib xyuas nruj, cov neeg siv tuaj yeem ua kom lawv cov granite nto phaj tseem yog lub hauv paus txhim khu kev qha rau tag nrho lawv cov kev xav tau zoo, kaum xyoo tom qab kaum xyoo.
Post lub sij hawm: Oct-24-2025