Granite Surface Plate Machining and Maintenance Guide: A precision granite nto phaj yuav tsum tau tshwj xeeb machining thiab txij nkawm los xyuas kom meej nws qhov tseeb thiab ntev. Ua ntej Polishing, lub granite tivthaiv yuav tsum tau pib lub tshuab ua haujlwm thiab kab rov tav hloov raws li cov qauv duab peb sab. Tom qab sib tsoo kab rov tav, yog tias CNC machining tsis tuaj yeem ua tiav qhov yuav tsum tau ua - feem ntau ncav qib 0 qhov tseeb (0.01mm / m kam rau ua raws li tau teev tseg hauv DIN 876) - tes ua tiav yuav tsum tau ua tiav qib siab dua li qib 00 (0.005mm / m kam rau ua raws li ASTM B89.3.
Cov txheej txheem machining muaj ob peb kauj ruam tseem ceeb. Ua ntej, kev sib tsoo ntxhib tsim kom yooj yim flatness, ua raws li theem nrab semi-finishing kom tshem tawm cov cim kev ua haujlwm. Precision sib tsoo, feem ntau ua manually, refines lub nto kom ua tau raws li qhov xav tau flatness kam rau ua thiab nto roughness (Ra tus nqi ntawm 0.32-0.63μm, qhov twg Ra sawv cev rau tus lej txhais tau tias sib txawv ntawm qhov profile nto). Thaum kawg, kev soj ntsuam xyuas kom zoo xyuas kom ua raws li cov qauv kev qhia, nrog rau kev ntsuas cov ntsiab lus tau muab tso rau hauv kab pheeb ces kaum, npoo, thiab nruab nrab-feem ntau 10-50 cov ntsiab lus nyob ntawm phaj loj-los xyuas kom meej qhov kev ntsuam xyuas qhov tseeb.
Kev tuav thiab kev teeb tsa tseem ceeb cuam tshuam qhov tseeb. Vim yog granite lub hauv paus rigidity (Mohs hardness 6-7), kev nqa tsis zoo tuaj yeem ua rau deformation mus tas li. Rau cov ntawv thov tseem ceeb uas xav tau Qib 00 precision, tom qab kev teeb tsa tes lapping yog qhov tseem ceeb los kho qhov raug cuam tshuam thaum thauj. Qhov kev mloog kom nthuav dav no txawv qhov zoo tshaj plaws precision granite nto daim hlau los ntawm cov txheej txheem machined versions.
Kev saib xyuas ncaj qha cuam tshuam rau kev ua haujlwm thiab kev ua neej nyob. Pib nrog kev tu kom huv si siv cov tshuaj ntxuav pH nruab nrab-tsis txhob muaj cov tshuaj acidic uas tuaj yeem cuam tshuam rau saum npoo. Kev ntsuas txhua xyoo nrog laser interferometers, traceable rau NIST cov qauv, ua kom muaj tseeb txuas ntxiv. Thaum muab cov khoom ua haujlwm, tso cai rau qhov sib npaug ntawm qhov sib npaug (feem ntau 15-30 feeb) los tiv thaiv kev ntsuas qhov tsis sib xws ntawm qhov kub thiab txias. Tsis txhob xaub cov khoom ntxhib hla ntawm qhov chaw, vim qhov no tuaj yeem tsim micro-scratches cuam tshuam rau flatness.
Cov txheej txheem kev siv kom raug suav nrog kev saib xyuas cov kev txwv tsis pub dhau los tiv thaiv kev ua haujlwm tsis zoo, tswj kev ruaj ntseg ib puag ncig (kub 20 ± 2 ° C, av noo 50 ± 5%), thiab siv cov cuab yeej nqa siab kom tsis txhob muaj kev puas tsuaj rau lub dav hlau. Tsis zoo li cov khoom siv hlau, granite lub thermal stability (0.01ppm / ° C) txo qhov cuam tshuam ib puag ncig, tab sis tam sim no kub hloov yuav tsum tau zam.
Raws li lub hauv paus cuab yeej hauv precision metrology, ntawv pov thawj granite nto daim hlau (ISO 17025 tau lees paub) ua tus qauv siv rau kev ntsuas qhov ntev. Lawv cov kev saib xyuas yuav tsum tau siv zog tsawg-tsuas yog so huv nrog ib daim ntaub tsis muaj lint tom qab siv-tsis muaj coatings tshwj xeeb lossis lubricants. Los ntawm kev ua raws li cov txheej txheem machining thiab kev saib xyuas no, precision granite nto daim hlau xa cov kev ua tau zoo rau ntau xyoo lawm, ua rau lawv tseem tsis tau muaj nyob rau hauv cov chaw soj ntsuam calibration, aerospace manufacturing, thiab high-precision engineering applications.
Post lub sij hawm: Nov-19-2025