Cov phaj granite muaj kev ruaj khov thermal zoo dua thiab ua tau ntev dua li lwm cov hlau, ua rau lawv yog qhov chaw siv rau kev ntsuas qhov tseeb hauv cov chaw kuaj mob thiab cov chaw ua haujlwm thoob ntiaj teb.
Tau ntau xyoo lawm, cov kws ua haujlwm tswj xyuas zoo tau vam khomgranite nto phajua lub hauv paus rau kev ntsuas qhov ntev. Txawm hais tias muaj kev vam meej hauv kev tshawb fawb txog cov ntaub ntawv, cov pob zeb loj heev no tseem niaj hnub tswj hwm cov chav tshuaj xyuas, CMM bases, thiab cov chaw kuaj ntsuas thoob plaws cov lag luam xws li aerospace mus rau semiconductor manufacturing. Lo lus nug tsis yog seb granite puas txhim khu kev qha - nws tau ua pov thawj nws tus kheej rau ntau tiam neeg - tab sis qib twg, cov khoom siv twg, thiab tus neeg muag khoom twg tuaj yeem ua tau raws li kev ua siab ntev ntawm kev tsim khoom niaj hnub no.
Vim li cas Granite Ua Tau Zoo Dua Hlau rau Kev Ntsuas Qhov Tseeb
Cov khoom siv ntawm granite ua rau nws tsim nyog siv ua qhov chaw ntsuas. Tsis zoo li hlau lossis hlau cam khwb cia, granite muaj kev ruaj khov thermal zoo heev - nws cov coefficient ntawm thermal expansion qis heev, txhais tau tias lub phaj qhov loj me hloov pauv tsawg kawg thaum qhov kub thiab txias hloov pauv. Hauv kev xyaum, qhov no txhais tau tias qhov chaw uas tuav nws qhov tiaj tiaj thoob plaws hnub ua haujlwm, txawm tias nyob rau hauv ib puag ncig tsis muaj kev tswj hwm huab cua zoo meej.
Granite kuj tiv taus kev warping thiab deformation thaum lub sijhawm thauj khoom. Lub phaj granite uas txhawb nqa zoo yuav tswj tau nws qhov tiaj tiaj rau ntau xyoo nrog kev saib xyuas tsawg kawg nkaus. Ntau lub chaw soj nstuam zoo tseem siv cov phaj nto uas muaj hnub nyoog 20 lossis 30 xyoo, thiab tsuas yog kev saib xyuas xwb yog kev ntxuav thiab rov lees paub qib tiaj tiaj.
Cov phaj hlau, ntawm qhov sib piv, yog cov yooj yim xeb thiab xav tau cov txheej tiv thaiv uas tuaj yeem ua rau muaj qhov yuam kev ntsuas. Cov phaj hlau cam khwb cia yog cov yoo dua rau kev hloov pauv thermal. Rau txhua daim ntawv thov uas qhov kev ntsuas sub-micron tseem ceeb, granite tsuas yog qhov kev xaiv kwv yees tau ntau dua.
Nkag Siab Txog Qib Flatness ntawm Cov Phaj Nto
Cov phaj nto raug faib ua pawg los ntawm kev kam rau siab, feem ntau ua raws li cov qauv xws li ASTM GGG-P-463C, DIN 876, lossis ISO 8512. Cov qib feem ntau yog:
- · Qib 00: Kev sib txawv ntawm qhov tiaj tiaj ≤0.5 μm / m - siv rau cov chaw kuaj mob calibration thiab cov ntawv thov siv uas xav tau tshaj plaws
- · Qib 0: Kev sib txawv ntawm qhov tiaj tiaj ≤1 μm/m — tsim nyog rau kev tshuaj xyuas dav dav thiab CMM cov hauv paus
- · Qib 1: Kev sib txawv ntawm qhov tiaj tiaj ≤2 μm/m — tsim nyog rau kev tshuaj xyuas thiab kev tsim cov cuab yeej hauv chav ua haujlwm
Rau feem ntau ntawm cov ntawv thov tswj kev lag luam zoo, Qib 0 muab qhov sib npaug zoo tshaj plaws ntawm tus nqi thiab kev ua tau zoo. Cov phaj Qib 00 feem ntau yog tseg rau cov koom haum ntsuas hauv tebchaws thiab cov chaw kuaj ntsuas thawj zaug uas xav tau kev taug qab mus rau cov qauv hauv tebchaws.
Thaum xaiv ib qhophaj nto, cov neeg yuav khoom yuav tsum xyuas kom meej cov qauv siv tau rau lawv txoj kev lag luam. Cov ntawv cog lus dav hlau thiab kev tiv thaiv feem ntau xav tau cov qauv ASTM, thaum cov chaw tsim khoom European tuaj yeem teev DIN 876. Tus neeg muag khoom tsim nyog yuav tsum muaj peev xwm tsim khoom thiab lees paub rau ib qho ntawm cov qauv no.
Cov Khoom Siv Tseem Ceeb: Vim Li Cas Dub Granite Thiaj Li Nyiam
Tsis yog txhua lub granite yog tsim los zoo ib yam. Cov granite dub - tshwj xeeb tshaj yog qee hom uas muaj cov minerals ntau - muaj cov yam ntxwv ua tau zoo dua rau kev ntsuas qhov tseeb. Cov yam ntxwv tseem ceeb yog qhov ceev thiab cov minerals sib xyaw.
Cov granite dub uas muaj qhov ntom ntom siab (feem ntau li ntawm 3,100 kg/m³) muab kev ruaj khov zoo dua thiab tiv taus kev hnav piv rau cov granite sib dua. Cov ntaub ntawv zoo dua, suav nrog qee cov marble hloov uas qee zaum muab los ntawm cov neeg muag khoom txo nqi, yuav tsis tswj tau qhov tiaj tus raws sijhawm thiab tuaj yeem ua rau muaj qhov yuam kev ntsuas tsis tu ncua.
Cov neeg yuav khoom yuav tsum thov kom cov neeg muag khoom muab daim ntawv pov thawj khoom siv los lees paub cov khoom siv ntawm granite. Lub chaw tsim khoom uas muaj npe nrov yuav npaj muab cov ntaub ntawv no rau koj. Txhua tus neeg muag khoom uas tsis tuaj yeem lossis tsis lees paub cov khoom siv yuav tsum raug saib tsis taus.
Kev Xaiv Qhov Loj: Nrhiav Qhov Chaw Ua Haujlwm Kom Yog
Cov phaj nto muaj ntau qhov loj me, txij li cov phaj me me 300mm × 200mm mus rau cov phaj loj tshaj 3,000mm ntev. Qhov chaw ua haujlwm yuav tsum tau loj kom haum rau qhov loj tshaj plaws ntawm cov khoom siv lossis cov khoom siv uas yuav muab tso rau ntawm nws, thaum tseem tshuav qhov chaw txaus rau kev txhawb nqa thiab kev nkag mus.
Cov pawg loj feem ntau muaj xws li:
- · Me (txog li 600 hli): Cov khoom siv hluav taws xob, cov cuab yeej ua haujlwm raug, cov khoom siv kho tshuab me me
- · Nruab Nrab (600mm txog 1,500mm): Kev tshuaj xyuas iav, cov khoom siv tshuab nruab nrab, CMM bases
- · Loj (1,500mm txog 3,000mm+): Cov khoom loj uas tsim los, kev sib dhos cov cuab yeej siv tshuab, cov khoom siv dav hlau
Qee cov chaw tsim khoom tuaj yeem tsim cov qhov ntau thiab tsawg raws li koj xav tau. Rau cov ntawv thov uas xav tau cov phaj loj dua 3,000 hli, nws yog ib qho tseem ceeb kom paub tseeb tias tus neeg muag khoom muaj peev xwm tsim khoom thiab cov khoom siv sib tsoo tshwj xeeb kom ua tiav qhov tiaj tiaj thoob plaws qhov chaw ua haujlwm tag nrho.
Cov Kev Xav Txog Cov Khoom Siv: Cov Rooj Sawv, Cov Kab, thiab Cov Pedestals
Ib lub phaj saum npoo tsuas yog ruaj khov li nws lub cev txhawb nqa. Cov sawv ntsug pneumatic lossis cov khoom ruaj khov nrog cov taw hloov kho tau tso cai rau lub phaj kom raug theem thiab tuaj yeem suav nrog cov yam ntxwv txo kev co rau kev siv hauv cov chaw ua haujlwm hauv Hoobkas. Cov sawv ntsug phaj yuav tsum tau muab tso rau ntawm qhov chaw pom zoo uas tus neeg tsim phaj tau teev tseg kom tiv thaiv kev cuam tshuam ntawm qhov chaw ua haujlwm.
Cov kab granite thiab cov phaj sab xis yog cov khoom siv uas siv ua ke nrog cov phaj saum npoo rau kev tsim cov dav hlau siv rau ntawm cov khoom ua haujlwm peb-seem. Cov khoom siv granite sib luag yog siv los xyuas qhov puag ncig, concentricity, thiab parallelism ntawm cov khoom cylindrical.
Kev Xaiv Tus Neeg Muag Khoom: Cov Kws Ua Haujlwm Zoo Tshawb Xyuas Dab Tsi
Thaum ntsuam xyuas cov neeg muag khoom ntawm cov phaj nto, cov kws ua haujlwm zoo uas muaj kev paub dhau los feem ntau tshawb xyuas ntau yam:
1. Cov qauv ntawv pov thawj — Paub tseeb tias tus neeg muag khoom tuaj yeem muab cov phaj ntawv pov thawj raws li cov qauv tshwj xeeb xav tau (ASTM, DIN, ISO, JIS, thiab lwm yam)
2. Kev taug qab tau — Kev ntsuas qhov tiaj tiaj yuav tsum taug qab tau raws li cov qauv ntsuas hauv tebchaws lossis thoob ntiaj teb
3. Cov ntaub ntawv pov thawj khoom siv - Pov thawj ntawm qhov ceev ntawm granite thiab cov khoom siv hauv cov pob zeb
4. Muaj peev xwm tsim khoom — Xyuas kom tus neeg muag khoom muaj cov khoom siv thiab kev txawj ntse rau qhov loj thiab qib xav tau
5. Cov kev pab cuam rov qab lees paub — Kev txheeb xyuas qhov tiaj tiaj tas mus li, tsis hais hauv tsev lossis los ntawm lub chaw kuaj ntsuas uas tau lees paub
Cov chaw ua haujlwm uas tau ua haujlwm nrog cov neeg muag khoom phaj nto tau ntau xyoo feem ntau tshaj tawm tias tus neeg muag khoom txoj kev ntsuas tseem ceeb npaum li lub phaj nws tus kheej. Ib lub chaw tsim khoom uas siv cov txheej txheem interferometry thiab laser ntsuas yuav tsim cov txiaj ntsig zoo sib xws dua li ib qho uas siv cov txheej txheem yooj yim dua.
Kev Txij Nkawm thiab Kev Rov Qab Pom Zoo
Txawm tias lub phaj nto zoo tshaj plaws yuav tsum tau rov ua dua daim ntawv pov thawj tsis tu ncua kom paub tseeb tias nws qhov tiaj tiaj tsis tau ploj mus. Qhov zaus nyob ntawm qhov siv zog thiab qib tiaj tiaj uas xav tau. Hauv feem ntau qhov chaw ua haujlwm, kev rov ua dua daim ntawv pov thawj txhua xyoo yog tus qauv rau cov phaj Qib 0 thiab Qib 1, nrog rau kev kuaj xyuas ntau zaus rau cov phaj Qib 00 siv hauv cov chaw kuaj ntsuas.
Kev rov lees paub dua suav nrog kev ntsuas qhov chaw ntawm ntau qhov chaw siv cov autocollimators, cov theem hluav taws xob, lossis laser interferometers, tom qab ntawd xam qhov sib txawv ntawm qhov tiaj tiaj raws li tus qauv siv tau. Txhua lub phaj uas tshaj nws qib kev kam rau siab yuav tsum raug tshem tawm ntawm kev pabcuam lossis rov ua dua los ntawm tus kws tshwj xeeb sib tsoo.
Cov Lus Nug Feem Ntau
Qhov txawv ntawm Qib 00, Qib 0, thiab Qib 1 cov phaj nto yog dab tsi?
Qib 00 muaj qhov kam rau siab tshaj plaws ntawm qhov tiaj tiaj (≤0.5 μm/m), Qib 0 tso cai ≤1 μm/m, thiab Qib 1 tso cai ≤2 μm/m. Xaiv Qib 00 rau kev siv calibration, Qib 0 rau kev tshuaj xyuas dav dav, thiab Qib 1 rau kev siv hauv chaw ua haujlwm.
Lub phaj granite nto ntev npaum li cas?
Nrog kev txhawb nqa zoo thiab kev rov ua dua tshiab, lub phaj granite tuaj yeem ua haujlwm tau 30 xyoo lossis ntau dua. Qhov txwv tsis yog kev hnav tab sis kev hloov pauv ntawm qhov tiaj tiaj dhau qhov kev kam rau siab ntev heev.
Puas yog cov phaj granite saum npoo av tuaj yeem rov ua dua tshiab yog tias lawv poob qhov tiaj tiaj?
Yog. Kev rov ua kom du (rov sib tsoo dua) tuaj yeem kho lub phaj nto kom zoo li qub, yog tias lub phaj tseem muaj cov khoom seem txaus. Feem ntau cov chaw tsim khoom tuaj yeem muab cov kev pabcuam no.
Vim li cas qee tus neeg muag khoom thiaj muab cov phaj nto ntawm cov nqi qis dua?
Feem ntau cov nqi qis dua qhia txog kev siv cov khoom siv granite uas tsis zoo (xws li marble lossis granite uas tsis ntom ntom), cov txheej txheem tsim khoom uas tsis meej, lossis kev txheeb xyuas qhov tiaj tiaj uas tsis nruj heev. Cov nyiaj txuag thawj zaug yuav raug them los ntawm kev xav tau rov ua daim ntawv pov thawj ua ntej lossis hloov pauv tag nrho.
Cov khoom siv twg xav tau nrog lub phaj nto?
Yuav tsum muaj lub rooj sawv ntsug uas ntsuas tau zoo thiab muaj cov ceg ntsuas tau zoo. Cov khoom siv ntxiv xws li cov granite strips, right-angle plates, parallel sets, thiab spirit levels. Kev saib xyuas qhov kub thiab txias thiab av noo yog qhov pom zoo rau cov kev siv uas siv tau zoo.
Lub sijhawm tshaj tawm: Lub Rau Hli-08-2026