Mwayika ndalama mu makina oyezera zinthu apamwamba kwambiri. Mapulogalamuwa ali ndi dongosolo loyezera. Ma probe ali ndi satifiketi. Komabe, muyeso wanu umasinthasintha. Osati kwambiri—kungoti micron apa, theka micron apo. Koma m'dziko la metrology yolondola kwambiri, kusinthaku ndiko kusiyana pakati pa kulephera ndi kulephera, pakati pa khalidwe ndi kukonzanso, pakati pa phindu ndi zotsalira.
Kodi Kutentha Kwambiri N'chiyani Kwenikweni?
Kutentha kwa thupi kumachitika pamene kusintha kwa kutentha kumapangitsa kuti kapangidwe kake ka makina oyezera kakulidwe kapena kufupika mosagwirizana.Zigawo za CMM—chimango, masikelo, zitsogozo, kapena maziko—zimakula mosagwirizana, zimayambitsa kusokonekera kwa geometric komwe kumabweretsa zolakwika muyeso.
Vutoli ndi lobisika chifukwa silioneka. Simungathe kuwona kutentha kwa 9°C kudutsa pa granite lintel, koma lingapangitse kusintha kwa mzere wa kutalika koonekera pa avareji ya pafupifupi 1 μm pa digiri Celsius. Mu metrology ya nanometer-level, zimenezo ndi zoopsa kwambiri.
Ngakhale kutentha kochepa komwe kumafunika mu labu ya metrology—nthawi zambiri 20°C ± 0.5°C—kungayambitse kutentha kokwanira m'mapangidwe achitsulo kuti kuchititse kuti muyeso ukhale wokwera kwambiri. Chitsulo chili ndi CTE pafupifupi kawiri kuposa granite. Aluminiyamu ili ndi CTE pafupifupi katatu kuposa kutentha kwa chipinda. Kutentha kwa chipinda kukasinthasintha—monga momwe kumakhalira m'malo enieni—zigawo zachitsulo zimakula ndikuchepa pamlingo wosiyana ndi maziko a granite, zomwe zimapangitsa kuti kusatsimikizika kwa muyeso kukhalepo mu kuwerenga kulikonse.
Chifukwa Chake Granite Ndi Chishango cha Kutentha
Yankho lake si njira zochepetsera kutentha kwambiri. Ndi maziko omwe sasuntha poyamba.
CTE yotsika kwambiri ya Granite imachepetsa kusintha kwa mawonekedwe, kusunga ubale wofunikira pakati pa nkhwangwa za CMM ndi gawo loyezedwa. Granite yathu yakuda ya ZHHIMG®, yokhala ndi kuchuluka kwa ≈3100 kg/m³, imapereka kukhazikika kwa kutentha komwe kumaposa granite yakuda yambiri yaku Europe ndi America. Kulemera kwakukulu kwa granite kumagwira ntchito ngati chotenthetsera chachikulu, kuchepetsa kusinthasintha kwa kutentha ndikusunga malo otenthetsera a isothermal pamlingo wonse woyezera.
Koma zinthu zokha sizikwanira. Chilengedwe chili ndi ntchito yofanana.
Kupanga Malo Okhazikika Pakutentha Kwambiri
Ku ZHHIMG®, tapititsa patsogolo kukhazikika kwa kutentha kupita ku mafakitale. Malo athu ochitira masewera olimbitsa thupi okhala ndi kutentha kosalekeza komanso chinyezi chokhazikika cha mamita 10,000 amamangidwa pa maziko olimba kwambiri a konkriti a 1000mm. Malo ochitira masewerawa ali ozunguliridwa ndi ngalande zotsutsana ndi kugwedezeka zomwe zili ndi mulifupi wa 500mm ndi kuya kwa 2000mm. Mkati mwake, ma cranes apadera opanda phokoso amagwira ntchito kuti asunge malo opanda kugwedezeka konse komanso otetezeka pa kutentha.
Koma tikupita patsogolo. Timasunga chipinda choyeretsera chapadera chokhala ndi kutentha kosasinthasintha komanso chinyezi chosasinthasintha chomwe chimatsanzira malo opangira zida za semiconductor—chopangidwira makamaka kusonkhanitsa zigawo za granite. Izi sizikutanthauza kusunga kutentha pa 20°C kokha. Ndikofunikira kuchotsa kutentha kwa zinthu zazikulu mkati mwa gawo lofunika kwambiri la kupanga: kusonkhanitsa komaliza ndikuwunika.
Unyolo Woyezera
Zachidziwikire, simungathe kulamulira zomwe simungathe kuyeza. Ichi ndichifukwa chake labotale yathu ya metrology ili ndi zida zoyezera zapamwamba kwambiri padziko lonse lapansi: German Mahr dial gauges (0.5 μm resolution), Mitutoyo micrometers ndi digital calipers, Swiss WYLER electronic levels, ndi British Renishaw laser interferometers. Chida chilichonse chimakhala ndi satifiketi yoyezera kuchokera ku Jinan Institute of Metrology ndi Shandong Institute of Metrology—ndipo kuyesa kulikonse kwa malonda kumatha kutsatiridwa mpaka ku National Institute of Metrology of China.
Chinthu cha Munthu
Nayi chinthu chomwe mabuku sakukuuzani: ngakhale zida zabwino kwambiri komanso malo okhazikika kwambiri sizingalowe m'malo mwa malingaliro a anthu. Akatswiri athu opukusira, omwe ali ndi zaka zoposa 30 zokumana ndi manja, amatha kudziwa kuchuluka kwa ma microns azinthu zomwe akuchotsa ndi stroke imodzi. Makasitomala athu amawatcha "mayendedwe apamagetsi". Samangotsatira njira; amamva zinthuzo, akumva kusintha kwa kukana komwe kumasonyeza kusintha kwa microscopic mu flatness.
Njira yolumikizirana yogwira ntchito imeneyi—yophatikiza zomangamanga zapamwamba padziko lonse lapansi ndi malingaliro osasinthika a anthu—imatsimikizira kuti gawo lililonse la granite la ZHHIMG®, kuyambira pa mbale zapamwamba mpaka ma bearing a mpweya, likukwaniritsa miyezo yofunika kwambiri padziko lonse lapansi.
Malangizo Othandiza kwa Ogula
Ngati wogulitsa atchula mawu akuti "granite" popanda kutchula ngati ndi miyala yosweka kapena miyala yopangidwa ndi miyala, funsani mwachindunji—kusiyana kwa mitengo, mawonekedwe omwe angatheke, ndi mawonekedwe okhazikika kwa nthawi yayitali ndizosiyana mokwanira kotero kuti kusiyana kuyenera kukhala gawo la pepala lililonse laukadaulo. Pa ntchito yowerengera bwino kwambiri, funsani kuchuluka kwenikweni, CTE, ndi kulekerera kwa flatness komwe kwapezeka—osati dzina la chinthucho lokha.
Chifukwa m'dziko la kuyeza mulingo wa nanometer, kutentha si vuto lomwe mungathe kuthetsa ndi mapulogalamu. Ndi vuto lomwe mumapewa ndi zinthu zoyenera, malo oyenera, komanso anthu oyenera.
Nthawi yotumizira: Julayi-08-2026