Koj cov hlau gauge blocks dag koj.
Tsis yog txhob txwm ua. Tab sis tom qab rau lub hlis ntawm kev siv hauv pem teb - cov dej txias ntws, qhov kub hloov pauv ntawm kev ua haujlwm thaum sawv ntxov thiab yav tav su, qee zaum poob rau ntawm lub phaj hlau cam khwb cia - qhov "10mm" thaiv ntawd tej zaum yuav yog 10.0003mm. Los yog 9.9997mm. Thiab yog tias koj khiav 5-micron kev kam rau siab, cov qhov yuam kev me me ntawd yuav sib xyaw ua ke rau hauv cov khoom pov tseg.
Qhov no yog qhov teeb meem ntsiag to uas tsis muaj leej twg tham txog hauv kev ua haujlwm precision.
Nov yog qhov tseeb tshwm sim nrog cov hlau ntsuas hauv cov chaw tsim khoom.
Cov hlau xeb. Txawm tias cov qib "stainless" tuaj yeem ua qhov thiab muaj xim thaum raug cov tshuaj txias, cov roj txiav, lossis tsuas yog cov av noo ntau dhau sijhawm. Thaum cov ntsej muag ua haujlwm tsim cov xeb me me, koj tus cwj pwm wringing hloov pauv. Cov blocks tsis sib dhos lawm. Qhov siab poob qis.
Hlau hnav. Txhua zaus koj muab cov khoom sib dhos ua ke, koj tshem tawm cov khoom me me ntawm cov ntsej muag. Tom qab ntau lub voj voog - nyob ntawm koj siv, tej zaum ob peb puas lub pawg - qhov tseeb ntawm qhov ntev ploj mus ntawm qhov kam rau siab. Koj daim ntawv pov thawj calibration los ntawm ob xyoos dhau los yuav tsis qhia txog qhov koj ntsuas niaj hnub no.
Hlau ua rau muaj hlau nplaum. Hauv cov chaw kuaj ntsuas metrology thiab CNC machining centers, kev cuam tshuam hlau nplaum los ntawm cov khoom siv nyob ze tuaj yeem cuam tshuam rau tus cwj pwm ntawm cov hlau ntsuas. Tsis yog txhua lub sijhawm, tsis yog qhov loj heev - tab sis hauv cov ntawv thov siab, "tsis ntau" tuaj yeem ntau dhau.
Hlau nthuav dav raws li qhov kub thiab txias. Yog lawm, hlau muaj tus coefficient ntawm kev nthuav dav thermal uas paub zoo, thiab cov chaw kuaj mob zoo suav nrog qhov ntawd. Tab sis qhov kub thiab txias hloov pauv me me tas li thoob plaws hnub tsim khoom ua rau muaj qhov tsis sib xws me me tab sis tiag tiag.
Cov cuab yeej ntsuas ceramic zam txhua yam teeb meem no.
Thiab nws tsis yog khawv koob - nws tsuas yog chemistry thiab physics ua lawv txoj haujlwm xwb.
Siv zirconia ceramic. Qhov nyuaj ntawm 1200-1450 HV1, piv rau tej zaum 700-800 HV rau cov hlau tawv. Qhov ntawd txhais tau tias cov gauge blocks ua los ntawm zirconia muaj kwv yees li ib feem kaum ntawm qhov hnav. Hauv ib qho kev sib tsoo precision uas tau sau tseg, hloov mus rau cov ceramic gauge blocks ntev dua qhov kev ntsuas txij li ob peb lub hlis mus txog txhua xyoo. Qhov xeb uas ua rau lawv cov hlau stacks hauv cov dej txias ploj mus.
Cov khoom tsis yog hlau nplaum yog qhov hloov pauv rau qee yam kev siv. Zirconia muaj qhov tsis kam ntawm qhov chaw tshaj 10 ^ 14 Ω·cm - hluav taws xob rwb thaiv tsev, tsis yog hlau nplaum kiag li. Qhov ntawd tshem tawm cov khoom siv hlau nplaum uas tuaj yeem ua rau cov txiaj ntsig tshuaj xyuas tsis meej. Yog tias koj ntsuas cov khoom siv bearing lossis ua haujlwm ze ntawm cov khoom siv hlau nplaum, qhov no tseem ceeb.
Thiab tus cwj pwm thermal yog qhov ua tau zoo heev. Zirconia tus coefficient ntawm thermal expansion nyob ib puag ncig 1 × 10 ^ -5 / ° C. Qhov ntawd yog kwv yees li sib piv rau hlau, uas txhais tau tias koj cov kev suav thermal compensation tsis xav tau kev tsim kho dua tshiab. Tab sis ceramic tsis ua kom sov tib yam, yog li qhov kub thiab txias hauv cov cuab yeej nws tus kheej yog qhov tsawg heev. Qhov nyeem koj tau txais tom qab 30 vib nas this ntawm kev sib cuag yog ruaj khov, tsis drifting raws li cov cuab yeej maj mam sib npaug.
Tam sim no, lo lus nug tiag tiag: zirconia lossis alumina?
Zirconia yeej qhov tawv. Nws muaj qhov hu ua "kev hloov pauv tawv" - thaum muaj kev ntxhov siab, nws hloov pauv me ntsis uas tiv taus qhov tawg. Qhov no ua rau nws zam txim ntau dua yog tias koj ua yuam kev poob lub gauge block. Alumina nyuaj dua tab sis brittle dua; kev cuam tshuam tuaj yeem ua rau chipping.
Zirconia lub zog khoov ntawm kwv yees li 1100 MPa yog kwv yees li peb npaug ntawm alumina. Yog tias koj cov cuab yeej siv tsis zoo, zirconia zam txim ntau dua.
Tiam sis alumina muaj nws qhov chaw. Nws pheej yig dua, tseem tawv heev (HV 1200+), thiab rau cov ntawv thov uas koj xav tau qhov tsawg kawg nkaus thermal expansion - zoo li optical metrology - alumina's qis dua CTE tuaj yeem ua tau zoo. Qee lub khw muag khoom precision optical nyiam alumina tshwj xeeb vim nws drifts tsawg dua nrog qhov kub.
Txawm li cas los xij, rau feem ntau ntawm cov ntawv thov machining precision, zirconia ntaus qhov chaw zoo tshaj plaws. Qhov zoo ntawm kev ruaj khov yog qhov tseeb, thiab tus nqi them rov qab los ntawm kev siv lub neej ntev dua thiab tsawg dua calibrations.
Qhov no zoo li cas hauv kev xyaum?
Hauv kev tsim cov kabmob, cov koob ntsuas ceramic kuaj xyuas qhov ntev ntawm sab hauv thiab sab nraud thoob plaws hnub. Cov koob hlau nyob rau hauv qhov chaw ntawd? Kev raug dej txias, kev ua qias tuaj ntawm cov hlau, kev siv tas li. Cov koob ceramic tsis xeb, tsis nyiam cov hlau khib nyiab, thiab qhov nyuaj siab txhais tau tias cov ntsej muag ntsuas nyob ntev dua. Ib lub chaw tsim khoom siv kabmob tau tshaj tawm tias lawv tus nqi hloov koob tshuaj xyuas tau poob qis li ntawm 80% tom qab hloov mus rau ceramic.
Hauv cov khw pwm thiab cov cuab yeej siv, cov V-blocks ceramic thiab cov npoo ncaj ntsuas qhov tob ntawm qhov, qhov tuab ntawm cov hniav, thiab qhov sib dhos ntawm cov khoom siv. Qhov tsis tas yuav saib xyuas yog qhov loj heev ntawm no - tsis muaj roj, tsis muaj xeb, tsis tas txhawj txog seb daim phaj ntug ntawd puas tau tso tseg ib hmos. Tso nws pov tseg, ntxuav nws, siv nws.
Hauv kev tsim cov khoom siv kho qhov muag, cov cuab yeej ntsuas ceramic kov cov iav thiab cov prisms uas tsis tuaj yeem khawb. Qhov roughness ntawm qhov chaw ntawm cov khoom siv ceramic zoo - Ra ≤ 0.2 micrometers - yuav tsis ua rau puas tsuaj rau cov iav kho qhov muag ci. Thiab vim tias ceramic yog inert tshuaj, tsis muaj kev pheej hmoo ntawm kev sib kis ntawm cov hlau ion uas cuam tshuam rau cov txheej txheem lens lossis transmissivity.
Hauv cov khoom siv semiconductor thiab cov khoom siv hluav taws xob, cov khoom tsis-conductive, tsis-magnetic tshem tawm kev cuam tshuam nrog cov txheej txheem ntsuas capacitive thiab induction. Cov cuab yeej hlau nyob ze ntawm cov khoom rhiab heev tuaj yeem ua rau muaj ntau yam teeb meem me me uas nyuaj rau taug qab.
Ob peb yam uas siv tau tiag tiag uas tsim nyog paub.
Kev xaiv qib ua haujlwm zoo li cov hlau gauge blocks: Qib 0, 1, 2, thiab 3, raws li ISO 3650 tus qauv. Feem ntau cov ntawv thov precision machining xav tau Qib 0 lossis Qib 1. Yog tias koj ua haujlwm uas tsis xav tau qib ntawd ntawm kev raug, tsis txhob them rau nws.
Kev khaws cia yooj yim dua li hlau. Tsis tas siv roj, tsis tas siv cov ntaub qhwv uas tiv thaiv xeb, tsis tas yuav tsum muaj lub txee tswj av noo. Tsuas yog khaws cia huv si hauv lub thawv uas lawv tuaj nrog. Lawv tsis yooj yim puas tsuaj, tab sis kev kho lawv kom tsis zoo yuav ua rau txhua yam cuab yeej siv tau ntev.
Kev kho kom raug tseem ceeb heev. Cov khoom ua los ntawm av nplaum tsis tshem tawm qhov txav mus los tag nrho - nws tsuas yog qeeb dua li hlau xwb. Kev kho kom raug txhua xyoo yog tus qauv rau cov cuab yeej siv hauv kev tsim khoom; qee lub khw thawb mus rau 18-24 lub hlis yog tias siv tsawg.
Tus nqi them ua ntej yog qhov tseeb tab sis tsim nyog. Xav tias yuav them ntau dua 30-50% ua ntej dua li cov hlau sib npaug. Tab sis thaum koj suav nrog lub sijhawm ntev dua, txo qhov zaus hloov pauv, thiab tsis muaj kev puas tsuaj ntsig txog xeb, tag nrho tus nqi ntawm kev muaj tshaj tsib xyoos feem ntau tawm los txawm tias lossis zoo dua.
Nov yog kev sib piv sai uas muab qhov no tso rau hauv kev xav.
Koj cov khoom siv hlau ntsuas, kev siv ntau lawm, cov xwm txheej hauv pem teb:
- Kev kho kom raug txhua 3-6 lub hlis vim yog kev hnav thiab xeb
- Hloov cov blocks uas siv ntau heev txhua 2-3 xyoos
- Qee zaum muaj qhov yuam kev ntsuas los ntawm kev xeb lossis kev puas tsuaj ntawm qhov chaw
- Kev ntxuav thiab roj txhua hnub kom tiv thaiv xeb
Kev siv tib yam, cov blocks ceramic gauge:
- Kev kho kom raug txhua 12-18 lub hlis
- Tsuas yog hloov yog tias lub cev puas tsuaj xwb
- Kev ntsuas tus cwj pwm sib xws, kwv yees tau
- So kom huv, khaws cia, ua tiav
Qhov sib txawv ntawm txoj haujlwm ua yog qhov tseeb. Thiab hauv ib lub khw uas muaj neeg coob coob uas koj tus kws tshaj lij QC twb tsis muaj zog lawm, kev tshem tawm ib qho kev hloov pauv txij nkawm ntawm qhov sib npaug yog qhov muaj txiaj ntsig tiag tiag.
Seb cov cuab yeej ntsuas ceramic puas haum rau koj txoj haujlwm nyob ntawm koj qhov xwm txheej tshwj xeeb.
Yog tias koj tab tom khiav qhov kev kam rau siab nruj, ua haujlwm hauv qhov chaw nyuaj, lossis siv sijhawm pom tseeb los tawm tsam kev saib xyuas lub gauge block, qhov hloov pauv no yuav tsim nyog tshawb nrhiav. Pib nrog ib pawg - cov khoom siv gauge block yooj yim hauv koj qhov ntau tshaj plaws - thiab saib seb nws ua haujlwm li cas piv rau koj cov haujlwm tam sim no.
Feem ntau cov khw uas sim ua cov khoom siv ceramic tsis rov qab mus rau cov hlau.
Lub sijhawm tshaj tawm: Tsib Hlis-22-2026