Rau ntau chav soj ntsuam thiab chaw soj ntsuam, precision granite nto phaj yog tso siab rau raws li lub hauv paus rau kev ntsuas kom raug. Vim tias txhua qhov kev ntsuas linear nyob ntawm qhov tseeb siv qhov chaw los ntawm qhov kawg qhov ntev yog coj, cov phaj saum npoo muab qhov zoo tshaj plaws siv dav hlau rau kev tshuaj xyuas thiab kev teeb tsa ua ntej machining. Lawv kuj yog cov hauv paus zoo rau kev ntsuas qhov siab thiab ntsuas qhov chaw. Tsis tas li ntawd, qib siab ntawm flatness, stability, tag nrho cov zoo thiab kev ua hauj lwm ua rau lawv xaiv zoo rau mounting sophisticated mechanical, electronics thiab optical gauging systems. Rau ib qho ntawm cov txheej txheem ntsuas no, nws yog ib qho tsim nyog yuav tsum khaws cov phaj saum npoo calibrated.
Rov ntsuas ntsuas thiab flatness
Ob qho tib si flatness thiab rov ntsuas dua yog qhov tseem ceeb los xyuas kom meej qhov chaw. Flatness tuaj yeem suav tias yog tag nrho cov ntsiab lus ntawm qhov chaw nyob hauv ob lub dav hlau sib luag, lub dav hlau puag thiab lub ru tsev dav hlau. Kev ntsuas ntawm qhov deb ntawm cov dav hlau yog tag nrho flatness ntawm qhov chaw. Qhov kev ntsuas flatness no feem ntau ua rau kev ua siab ntev thiab tuaj yeem suav nrog kev xaiv qib.
Tam sim no kuv yuav coj ib qho piv txwv ntawm USA Standard los piav qhia yuav ua li cas calibrate granite nto phaj.
Lub flatness kam rau ua rau peb tus qauv qib yog txhais nyob rau hauv tsoom fwv teb chaws specification raws li tau txiav txim los ntawm cov nram qab no mis:
Laboratory Qib AA {{0}} (40 plus diagonal² / 25) x 0.000001 nti (unilateral)
Kev soj ntsuam Qib A=Laboratory Qib AA x 2
Tool Room Qib B=Laboratory Qib AA x 4
Ntxiv nrog rau flatness, repeatability yuav tsum tau ua kom ntseeg tau. Kev ntsuas rov ua dua yog ntsuas qhov chaw tiaj tus hauv zos. Nws yog ib qho kev ntsuas coj mus nyob qhov twg ntawm qhov chaw ntawm lub phaj uas yuav rov ua dua nyob rau hauv qhov tau teev tseg. Kev tswj cov cheeb tsam hauv cheeb tsam flatness mus rau ib tug nruj kam rau siab tshaj tag nrho cov flatness guarantees ib tug maj mam hloov nyob rau hauv qhov chaw flatness profile, yog li txo qhov yuam kev hauv zos.
Txhawm rau kom cov phaj saum npoo ua tau raws li ob qho tib si flatness thiab rov ntsuas qhov ntsuas, cov tuam txhab ntawm granite nto phaj yuav tsum siv Tsoom Fwv Teb Chaws Specification GGG-P-463c ua lub hauv paus rau lawv cov specifications. Cov txheej txheem no hais txog kev ntsuas qhov tseeb, cov khoom siv ntawm cov phaj ntog granites, nto tiav, kev txhawb nqa qhov chaw, nruj, siv tau txoj hauv kev tshuaj xyuas thiab kev teeb tsa ntawm threaded inserts.
Ua ntej lub phaj saum npoo tau hnav dhau qhov kev qhia tshwj xeeb rau tag nrho cov flatness, nws yuav qhia hnav lossis wavy posts. Kev tshuaj xyuas txhua hli rau qhov rov ntsuas qhov yuam kev uas siv qhov ntsuas rov nyeem dua yuav txheeb xyuas qhov hnav. Kev nyeem ntawv rov ua dua yog cov cuab yeej ua haujlwm siab uas kuaj pom qhov yuam kev hauv zos thiab tuaj yeem tso tawm ntawm lub tshuab hluav taws xob loj loj.
Tshawb xyuas Plate Accuracy
Los ntawm kev ua raws li ob peb cov lus qhia yooj yim, kev nqis peev hauv granite nto phaj yuav tsum kav ntev li ntau xyoo. Nyob ntawm kev siv phaj, lub khw ib puag ncig thiab qhov yuav tsum tau muaj tseeb, zaus ntawm kev tshuaj xyuas cov phaj phaj qhov tseeb sib txawv. Txoj cai dav dav ntawm tus ntiv tes xoo yog rau lub phaj tshiab kom tau txais tag nrho cov ntaub ntawv rov qab hauv ib xyoos ntawm kev yuav khoom. Yog tias lub phaj siv ntau zaus, nws raug nquahu kom luv lub sijhawm no mus rau rau lub hlis.
Ua ntej lub phaj saum npoo tau hnav dhau qhov kev qhia tshwj xeeb rau tag nrho cov flatness, nws yuav qhia hnav lossis wavy posts. Kev tshuaj xyuas txhua hli rau qhov rov ntsuas qhov yuam kev uas siv qhov ntsuas rov nyeem dua yuav txheeb xyuas qhov hnav. Kev nyeem ntawv rov ua dua yog cov cuab yeej ua haujlwm siab uas kuaj pom qhov yuam kev hauv zos thiab tuaj yeem tso tawm ntawm lub tshuab hluav taws xob loj loj.
Ib qho kev soj ntsuam zoo yuav tsum suav nrog kev kuaj xyuas tsis tu ncua nrog autocollimator, muab qhov tseeb calibration ntawm tag nrho cov flatness traceable rau National Institute of Standards thiab Technology (NIST). Kev calibration zoo los ntawm cov chaw tsim khoom lossis lub tuam txhab ywj pheej yog tsim nyog los ntawm lub sijhawm.
Variations ntawm Calibrations
Qee qhov xwm txheej, muaj qhov sib txawv ntawm cov phaj phaj calibrations. Qee zaum qee yam xws li kev hloov pauv ntawm qhov chaw uas tshwm sim los ntawm kev hnav, kev siv tsis raug ntawm cov khoom siv tshuaj ntsuam xyuas lossis siv cov khoom siv tsis raug ntsuas tuaj yeem suav rau cov kev hloov pauv no. Ob qho tseem ceeb tshaj plaws, txawm li cas los xij, yog qhov kub thiab txias.
Ib qho kev hloov pauv tseem ceeb tshaj plaws yog qhov kub thiab txias. Piv txwv li, qhov saum npoo yuav raug ntxuav nrog cov tshuaj kub los yog txias ua ntej calibration thiab tsis tso cai rau lub sij hawm txaus rau normalize. Lwm qhov ua rau kub hloov pauv muaj xws li cov cua txias lossis cua kub, tshav ntuj ncaj qha, teeb pom kev zoo ntawm lub taub hau lossis lwm qhov chaw ntawm lub tshav kub ntawm lub phaj.
Kuj tseem tuaj yeem muaj qhov sib txawv ntawm qhov ntsuas kub ntsug ntawm lub caij ntuj no thiab lub caij ntuj sov. Qee zaum, lub phaj tsis tso cai rau lub sijhawm txaus los normalize tom qab xa khoom. Nws yog ib lub tswv yim zoo los sau qhov ntsug gradient kub thaum lub sij hawm calibration ua.
Lwm qhov ua rau calibration variation yog lub phaj uas tsis raug kev txhawb nqa. Lub phaj saum npoo yuav tsum tau txais kev txhawb nqa ntawm peb lub ntsiab lus, qhov zoo tshaj plaws nyob rau 20 feem pua ntawm qhov ntev ntawm qhov kawg ntawm lub phaj. Ob qhov kev txhawb nqa yuav tsum nyob ntawm 20 feem pua ntawm qhov dav hauv los ntawm sab ntev, thiab qhov kev txhawb nqa ntxiv yuav tsum yog qhov nruab nrab.
Tsuas yog peb lub ntsiab lus tuaj yeem so ruaj khov ntawm txhua yam tab sis qhov tseeb qhov chaw. Kev sim txhawb lub phaj ntawm ntau tshaj peb lub ntsiab lus yuav ua rau lub phaj tau txais nws cov kev txhawb nqa los ntawm ntau yam kev sib txuas ntawm peb lub ntsiab lus, uas yuav tsis zoo li peb lub ntsiab lus uas nws tau txais kev txhawb nqa thaum lub sijhawm tsim khoom. Qhov no yuav qhia txog qhov tsis raug raws li lub phaj deflects kom ua raws li qhov kev txhawb nqa tshiab. Xav txog kev siv steel stands nrog kev txhawb nqa beams tsim los ua kab nrog cov ntsiab lus txhawb nqa kom zoo. Stands rau lub hom phiaj no feem ntau muaj los ntawm cov chaw tsim khoom ntawm cov phaj nto.
Yog tias lub phaj tau txais kev txhawb nqa kom raug, kev ntsuas qib meej tsuas yog tsim nyog yog tias daim ntawv thov qhia nws. Leveling tsis yog tsim nyog los tswj qhov tseeb ntawm lub phaj txhawb kom zoo.
Nws yog ib qho tseem ceeb kom ua kom lub phaj huv si. Airborne abrasive plua plav feem ntau yog qhov loj tshaj plaws ntawm hnav thiab tsim kua muag ntawm lub phaj, raws li nws nyiam mus rau hauv cov khoom ua haujlwm thiab qhov chaw sib cuag ntawm cov ntsuas. Npog cov phiaj los tiv thaiv lawv ntawm plua plav thiab kev puas tsuaj. Hnav lub neej tuaj yeem txuas ntxiv los ntawm kev npog lub phaj thaum tsis siv.
Extend Phaj Life
Ua raws li ob peb cov lus qhia yuav txo tau hnav ntawm granite nto phaj thiab thaum kawg, txuas nws lub neej.
Ua ntej, nws yog ib qho tseem ceeb kom ua kom lub phaj huv si. Airborne abrasive plua plav feem ntau yog qhov loj tshaj plaws ntawm kev hnav thiab tsim kua muag ntawm lub phaj, raws li nws nyiam embed hauv workpieces thiab qhov chaw sib cuag ntawm gages.
Nws tseem yog ib qho tseem ceeb los npog daim hlau los tiv thaiv nws ntawm cov plua plav thiab kev puas tsuaj. Hnav lub neej tuaj yeem txuas ntxiv los ntawm kev npog lub phaj thaum tsis siv.
Tig lub phaj ib ntus kom ib cheeb tsam tsis tau txais kev siv ntau dhau. Tsis tas li ntawd, nws raug nquahu kom hloov cov ntaub qhwv steel rau ntawm kev sib tsoo nrog carbide pads.
Tsis txhob muab zaub mov lossis dej qab zib rau ntawm lub phaj. Ntau cov dej qab zib muaj xws li carbonic lossis phosphoric acid, uas tuaj yeem yaj cov ntxhia softer thiab tawm hauv qhov me me hauv qhov chaw.
Qhov twg Relap
Thaum lub phaj saum npoo granite xav tau rov ua dua, xav txog seb puas yuav muaj qhov kev pabcuam no ua haujlwm rau ntawm qhov chaw lossis ntawm qhov chaw calibration. Nws yog ib txwm zoo dua kom muaj lub phaj rov qab los ntawm lub Hoobkas lossis qhov chaw tshwj xeeb. Txawm li cas los xij, lub phaj tsis hnav tsis zoo, feem ntau nyob rau hauv 0.001 nti ntawm qhov yuav tsum tau ua siab ntev, nws tuaj yeem rov ua dua ntawm qhov chaw. Yog hais tias lub phaj yog hnav mus rau qhov chaw uas nws yog ntau tshaj 0.001 nti tawm ntawm lub siab ntev, los yog yog hais tias nws yog phem pitted los yog nicked, ces nws yuav tsum tau xa mus rau lub Hoobkas rau kev sib tsoo ua ntej relapped.
Lub calibration facility muaj cov cuab yeej thiab lub Hoobkas teeb tsa muab qhov zoo tshaj plaws rau cov phaj calibration thiab rov ua dua yog tias tsim nyog.
Kev saib xyuas zoo yuav tsum tau siv rau hauv kev xaiv ib qho chaw calibration thiab resurfacing tus kws tshaj lij. Nug kom lees paub thiab txheeb xyuas cov khoom siv uas tus kws tshaj lij yuav siv tau NIST-traceable calibration. Kev paub kuj yog ib qho tseem ceeb, raws li nws yuav siv sij hawm ntau xyoo los kawm yuav ua li cas kom raug lap precision granite.
Kev ntsuas tseem ceeb pib nrog precision granite nto phaj raws li lub hauv paus. Los ntawm kev ua kom ntseeg tau cov ntaub ntawv siv tau los ntawm kev siv lub phaj zoo calibrated, manufacturers muaj ib qho ntawm cov cuab yeej tseem ceeb rau kev ntsuas txhim khu kev qha thiab zoo dua qhov chaw.
Daim ntawv teev npe rau Calibration Variations
1. Qhov saum npoo tau ntxuav nrog cov tshuaj kub lossis txias ua ntej calibration thiab tsis pub sijhawm txaus rau normalize.
2. Lub phaj tsis raug txhawb nqa.
3. Kev hloov kub.
4. Cov ntawv sau.
5. Lub hnub ci ncaj qha lossis lwm yam hluav taws xob hluav taws xob nyob rau saum npoo ntawm lub phaj. Nco ntsoov tias lub teeb pom kev zoo tshaj plaws tsis yog cua sov ntawm qhov chaw.
6. Variations nyob rau hauv ntsug kub gradient ntawm lub caij ntuj no thiab lub caij ntuj sov. Yog tias ua tau, paub qhov ntsuas qhov ntsuas ntsug ntsug thaum lub sijhawm ua haujlwm calibration.
7. Lub phaj tsis tso cai rau lub sijhawm txaus los normalize tom qab xa khoom.
8. Kev siv cov cuab yeej tshuaj xyuas tsis raug lossis siv cov khoom siv tsis raug ntsuas.
9. Qhov chaw hloov pauv los ntawm kev hnav.
Tswv yim Tech
Vim tias txhua qhov kev ntsuas linear nyob ntawm qhov tseeb siv qhov chaw los ntawm qhov kawg qhov ntev yog coj, cov phaj saum npoo muab qhov zoo tshaj plaws siv dav hlau rau kev tshuaj xyuas thiab kev teeb tsa ua ntej machining.
Kev tswj cov cheeb tsam hauv cheeb tsam flatness mus rau ib tug nruj kam rau siab tshaj tag nrho cov flatness guarantees ib tug maj mam hloov nyob rau hauv qhov chaw flatness profile, yog li txo qhov yuam kev hauv zos.
Ib qho kev tshuaj xyuas zoo yuav tsum suav nrog kev kuaj xyuas tsis tu ncua nrog autocollimator, muab qhov tseeb calibration ntawm tag nrho cov flatness traceable rau NIST.
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