Hauv qhov chaw uas tsis tshua muaj neeg paub txog cov tshuab ua haujlwm uas muaj qhov tseeb heev, qhov twg qhov kev ntsuas qhov kam rau siab hauv sub-microns thiab thermal drift yog tus yeeb ncuab ntawm qhov zoo, kev xaiv cov khoom siv tsis yog tsuas yog kev xav txog kev tsim qauv xwb - nws yog qhov tseem ceeb ntawm kev ua tau zoo. Thaum kev tsim khoom thawb mus rau qhov txwv ntawm physics, tshwj xeeb tshaj yog hauv cov khoom xws li semiconductor lithography, optical lens grinding, thiab coordinate measuring machines (CMM), tus qauv kev lag luam tau ruaj khov rau granite. Txawm li cas los xij, "granite" tsis yog monolith. Kev xaiv cov khoom granite zoo yuav tsum muaj kev nkag siab zoo txog geology, physics, thiab kev tsim khoom siab heev. Tsab xov xwm no coj cov engineers thiab cov kws tshaj lij kev yuav khoom los ntawm cov yam tseem ceeb ntawm kev xaiv cov khoom granite zoo tshaj plaws rau cov ntawv thov ultra-precision.
Lub Hauv Paus Geological: Tsis Yog Txhua Lub Pob Zeb Yog Tsim Sib Npaug
Txoj kev xaiv cov khoom zoo pib tob hauv av. Rau cov tshuab ua kom raug heev, tus qauv kev lag luam yuav luag tsuas yog cov granite dub xwb, feem ntau yog los ntawm cov qauv geological tshwj xeeb uas paub txog lawv cov noob zoo thiab sib xws. Cov nto moo tshaj plaws ntawm cov no yog "Jinan Green" lossis "Jinan Black" granite pom nyob rau hauv xeev Shandong ntawm Tuam Tshoj, ib cheeb tsam uas tau dhau los ua lub hauv paus thoob ntiaj teb rau kev rho tawm pob zeb zoo.
Thaum ntsuam xyuas cov neeg muag khoom muaj peev xwm, thawj qhov yuav tsum tau ua yog cov khoom siv huv. Cov granite uas muaj qhov tseeb siab yuav tsum tsis muaj cov leeg quartz, cov kab nrib pleb, thiab cov khoom tsis huv uas yuav ua rau cov qauv tsis ua haujlwm lossis hnav tsis sib xws dhau sijhawm. Cov khoom siv zoo tagnrho muaj cov qauv ntom ntom, zoo nkauj nrog Mohs hardness ntawm kwv yees li 6.5 txog 7. Qhov hardness no yog qhov tseem ceeb; nws ua kom ntseeg tau tias cov khoom tiv taus khawb thiab abrasion thaum lub sijhawm ua haujlwm, tswj nws cov geometric integrity rau ntau xyoo. Ntxiv mus, cov khoom siv yuav tsum "tso kev ntxhov siab" los ntawm xwm. Tsis zoo li cov hlau castings, uas xav tau kev laus dag kom tshem tawm kev ntxhov siab sab hauv, granite ntuj tau laus rau ntau lab xyoo, muab qib kev ruaj khov uas cov khoom siv hluavtaws nyuaj rau phim.
Kev Ruaj Ntseg Thermal: Lub Hauv Paus Hauv Lub Ntiaj Teb Uas Hloov Pauv
Hauv cov chaw ua haujlwm uas muaj kev ua haujlwm siab heev, cua sov yog qhov ua rau muaj qhov yuam kev tseem ceeb. Thaum cov cuab yeej siv tshuab thiab cov cav tsim cua sov, lossis thaum qhov kub ntawm lub Hoobkas hloov pauv, cov ntaub ntawv nthuav dav thiab cog lus. Piv txwv li, hlau muaj tus coefficient ntawm thermal expansion (CTE) uas tuaj yeem ua rau muaj qhov yuam kev loj heev ntawm kev ncua deb.
Cov khoom granite sab xis ua haujlwm ua lub zog tiv thaiv cua sov. Cov granite dub zoo feem ntau qhia txog CTE ntawm kwv yees li
4.6 × 10−6 / ∘C, uas qis dua li ntawm cov hlau cam khwb cia lossis hlau. Qhov no txhais tau tias rau txhua qib ntawm kev hloov pauv kub, cov qauv granite hloov pauv qhov loj me tsawg dua li nws cov hlau sib piv. Thaum xaiv tus neeg muag khoom, nws yog ib qho tseem ceeb kom thov daim ntawv qhia txog cov khoom siv lub cev, tshwj xeeb tshaj yog nrhiav qhov qis hygroscopicity (kev nqus dej) thiab cov coefficient thermal expansion sib xws. Qhov no ua kom ntseeg tau tias lub tshuab tswj nws qhov kev ntsuas txawm tias nyob rau hauv ib puag ncig uas kev tswj hwm huab cua zoo meej yog qhov nyuaj rau txhawb nqa.
Cov Qib Siab thiab Cov Khoom Siv Ua Kom Tiav
Thaum xaiv cov khoom siv raw, kev sib tham hloov mus rau kev ua haujlwm muaj peev xwm. Cov khoom siv granite feem ntau raug cais los ntawm cov qib precision, feem ntau ua raws li cov qauv zoo li DIN 876 lossis ASME B89.3.7. Rau cov tshuab ultra-precision - xws li lub hauv paus ntawm CMM siab lossis theem ntawm lub tshuab ua laser - tsuas yog cov qib siab tshaj plaws (00 lossis 0 qib) thiaj li siv tau.
Kev ua tiav cov qib no yuav tsum muaj kev sib xyaw ntawm cov thev naus laus zis niaj hnub thiab kev txawj ua tes ua taw. Cov txheej txheem tsim khoom feem ntau pib nrog kev txiav pob zeb diamond loj thiab CNC milling kom ua tiav cov qauv geometry. Txawm li cas los xij, qhov kawg ntawm qhov chaw tiav thiab qhov tiaj tiaj feem ntau ua tiav los ntawm kev siv tes ua. Qhov no yog qhov uas kev txawj ntse ntawm tus neeg tsim khoom tseem ceeb heev. Cov kws txawj ua tes ua taw siv cov cuab yeej ncaj thiab cov cuab yeej hluav taws xob los khawb thiab txhuam cov pob zeb, tshem tawm cov chaw siab me me kom ua tiav qhov tiaj tiaj tsawg dua 1 micron ib 'meter'.
Thaum xaiv tus khub, nrhiav cov chaw tsim khoom uas muaj peev xwm ua haujlwm hnyav CNC rau kev ua roughing thiab ib puag ncig "chav huv" rau cov theem kawg. Cov hmoov av thiab qhov kub thiab txias hloov pauv thaum lub sijhawm kawg lapping tuaj yeem ua rau puas tsuaj qhov tseeb ntawm qhov khoom, yog li ib puag ncig tswj hwm tsis tuaj yeem sib tham tau.
Kev Kho Kom Haum thiab Kev Koom Ua Ke: Tshaj Lij Lub Phaj Tiaj
Cov hnub uas granite tsuas yog siv ua lub rooj soj ntsuam tiaj tiaj xwb twb dhau mus lawm. Cov tshuab niaj hnub no xav tau cov qauv 3D nyuaj - cov choj txav mus los, cov rooj vag (gantry), thiab cov rooj tig. Qhov no xav tau tus neeg tsim khoom uas muaj peev xwm ua tiav cov haujlwm tob.
Cov khoom granite sab xis yuav muaj cov hlau ntxig rau hauv pob zeb rau kev teeb tsa cov lus qhia kab, cov qhov xov rau kev sib dhos, thiab T-slots rau kev teeb tsa. Cov txheej txheem ntawm kev ntxig cov hlau no rau hauv pob zeb yog ib daim duab kos duab hauv nws tus kheej. Nws suav nrog kev khawb cov qhov tseeb, kev sib txuas cov hlau tsis xeb lossis tooj dag nrog cov epoxy muaj zog siab, thiab xyuas kom meej tias qhov sib txuas tsis tsim kev ntxhov siab sab hauv uas tuaj yeem ua rau pob zeb nkhaus.
Tsis tas li ntawd xwb, cov chaw tsim khoom siv cov txheej txheem casting mineral (dag granite) nrog rau cov pob zeb ntuj. Qhov no suav nrog kev sib xyaw cov granite crushed nrog epoxy resins los casting cov duab nyuaj uas tej zaum yuav tsis yooj yim sua kom siv los ntawm lub thaiv khov kho. Thaum soj ntsuam cov neeg muab khoom, xav txog lawv lub peev xwm los muab cov kev daws teeb meem "hybrid" - siv cov granite ntuj rau cov chaw siv tseem ceeb thiab cov mineral casting rau cov qauv loj, ua kom zoo dua ob qho tib si tus nqi thiab kev ua tau zoo.
Qhov Tseem Ceeb ntawm Kev Ntsuas thiab Daim Ntawv Pov Thawj
Hauv lub ntiaj teb ntawm kev ua kom raug heev, kev ntseeg siab yuav tsum tau txheeb xyuas. Tus neeg muag khoom granite uas muaj npe nrov yuav tsis tsuas yog xa ib feem xwb; lawv yuav muab "daim ntawv pov thawj yug" rau cov khoom. Cov ntaub ntawv no yuav tsum suav nrog daim ntawv qhia kev tshuaj xyuas ntxaws ntxaws uas tsim los ntawm laser interferometers lossis electronic autocollimators.
Cov ntawv qhia no qhia txog qhov chaw ntawm granite, muab daim ntawv qhia contour ntawm cov ncov thiab cov hav dej thoob plaws thaj chaw ua haujlwm. Rau cov ntawv thov ultra-precision, koj yuav tsum tau daim ntawv qhia uas txheeb xyuas qhov tiaj tiaj thoob plaws qhov chaw, tsis yog tsuas yog ntawm ob peb qhov chaw kuaj xwb. Tsis tas li ntawd, tus neeg muag khoom yuav tsum tau ntawv pov thawj ISO 9001, kom ntseeg tau tias lawv lub kaw lus tswj xyuas zoo muaj zog txaus los daws cov kev xav tau ntawm kev lag luam aerospace, kev kho mob, lossis semiconductor.
Xaus Lus: Kev Koom Tes Hauv Kev Ua Kom Tseeb
Kev xaiv cov khoom siv granite zoo tsis yog ib qho kev lag luam; nws yog kev koom tes. Nws yuav tsum nrhiav tus neeg muag khoom uas nkag siab tias lawv tsis yog tsuas yog txiav pob zeb xwb, tab sis kuj yog lub hauv paus ntawm koj lub tshuab qhov tseeb. Txij li cov chaw txua zeb hauv Jinan mus rau cov chaw ua haujlwm lapping siab heev, txhua kauj ruam ntawm cov txheej txheem pab txhawb rau qhov kev ua haujlwm kawg ntawm cov khoom siv.
Los ntawm kev muab qhov tseem ceeb rau cov khoom siv huv, kev ruaj khov ntawm thermal, kev ntsuas qhov tseeb, thiab cov txheej txheem tsim khoom uas tau ntawv pov thawj, cov engineers tuaj yeem ua kom lawv cov tshuab ua haujlwm siab heev sawv ntawm lub hauv paus ruaj khov tshaj plaws. Hauv kev lag luam uas txhais los ntawm kev ua kom raug, cov granite siab tseem yog lub hauv paus ntawm qhov zoo.
Lub sijhawm tshaj tawm: Tsib Hlis-07-2026