Munyaya yekuyera nemazvo, granite straightedge, sechishandiso chakakosha chekuona kuti michina nemayero akarurama, giredhi rayo re flatness rinokanganisa zvakananga kuvimbika kwemhedzisiro yekuyera. Chitupa cheNational Institute of Standards and Technology (NIST) cheUnited States chinozivikanwa pasi rose chemidziyo yekuyera nemazvo, uye flatness yemazinga eAA ndeimwe yemagiredhi ane zvinodiwa zvakanyanya zvemazvo. Sechiratidzo chinotungamira muindasitiri, ZHHIMG, ine tekinoroji yayo yepamusoro uye hunyanzvi hwakasimba, inobatsira vashandisi kuzadzisa zvinangwa zveNIST certification uye flatness yemazinga eAA kune vanoruramisa granite. Izvi zvinotevera zvichakupa ongororo yakadzama yenzvimbo dzinokosha dzekugadzirisa uye nzira dzekushandisa.
1. Nzwisisa chitupa cheNIST uye chiyero cheAA-level flatness
Chitupa cheNIST chinozivikanwa nemaitiro acho ekuedza nekuongorora akaomarara, chinangwa chayo chikuru chiri chekuona kuti michina yekuyera inosangana nezvinodiwa zvepasi rose zvekururama. Munyaya yegranite straightedge, chinodiwa cheAA grade flatness chakaoma zvikuru. Kazhinji, zvinotarisirwa kuti kukanganisa flatness mukati mehurefu hwemita yega yega kunofanira kudzorwa mukati me ± 0.5μm. Iyi standard inopa zvinodiwa zvakanyanya zvehunhu hwezvinhu, tekinoroji yekugadzirisa uye tekinoroji ye calibration yestraightedge. Iyo AA-level granite straightedge yakasimbiswa neNIST haisi vimbiso yakavimbika yekuyera kwakanyatsojeka, asiwo humbowo hwakasimba hwesimba rehunyanzvi hwebhizinesi uye mhando yechigadzirwa.
Ii. Hwaro Hwemhando Yepamusoro hweZHHIMG granite straightedge
Granite straightedge yeZHHIMG yakaisa hwaro hwakarurama kubva padanho rekusarudza zvinhu. Granite yechisikigo yakasarudzwa yepamusoro-soro, ine crystallization yemukati mesimbi uye chimiro chakafanana, ine thermal expansion coefficient yakaderera se5-7 × 10⁻⁶/℃, uye ine kugadzikana kwechisikigo uye kugona kurwisa deformation, zvichipa mukana wekuwana flatness yeAA-level. Munguva yekugadzirisa, ZHHIMG inoshandisa matekiniki epamusoro akadai seCNC grinding and polishing, pamwe chete nemidziyo yekuona yakanyatsojeka senge laser interferometers yekuenzanisa chaiyo-nguva, kuve nechokwadi chekuti pamusoro pestraighteer panowana kunyatsojeka kwekutanga panguva yekugadzirisa, zvichigadzira mamiriro akanaka ekushanda kwecalibration inotevera.
Iii. Kugadzirira Kusati Kwagadziriswa
Usati waita calibration yeNIST certification, zvakakosha kuve nechokwadi chekuti straightedge iri mumamiriro akanaka kwazvo. Chekutanga, pamusoro pestraightedge inofanira kucheneswa zvakadzama. Shandisa jira risina lint uye cleaner yakakosha kubvisa mavara emafuta, guruva nezvimwe tsvina pamusoro kuti usasvibisa zvichikanganisa kurongeka kwe calibration. Chechipiri, isa straightedge munzvimbo ine tembiricha ne hunyoro zvakaringana kwemaawa anopfuura makumi maviri nemana kuti ikwanise kuenderana netembiricha ne hunyoro zvakaringana, kubvisa zvikanganiso zvidiki zvinokonzerwa nekuchinja kwezvakatipoteredza. Pamusoro pezvo, maturusi e calibration akanyatsojeka akadai se laser interferometers uye electronic levels anofanirwa kugadzirirwa. Kurongeka kwezvishandiso izvi kunokanganisa zvakananga kurongeka kwemhedzisiro ye calibration.
Maitiro ekugadzirisa uye matekinoroji akakosha
Kuenzanisa kusina kunaka: Shandisa electron level kuti uedze straightedge pakutanga. Unganidza nzvimbo yekuyera pane dzimwe nguva (senge 100mm) kuti uwane data re contour re straightedge surface. Zvichibva pamhedzisiro yekuyera, pamusoro pe straightedge pakashandiswa michina yekukuya yeCNC kubvisa nzvimbo dzakakwirira dziri pachena, zvichiita kuti flatness yacho isvike padanho reAA-level.
Kuongororwa kwakanyatsojeka: Kuyerwa kwakanyatsojeka kunoitwa uchishandisa laser interferometer, iyo inogona kuona nemazvo shanduko dzehurefu pamusoro pe straightedge padanho re micrometer. Zvichibva padata rakadzoserwa ne interferometer, pamusoro pe straightedge pakakuyiwa zvakanaka nekubatanidza kukuya nemaoko ne CNC machining. Munguva yekukuya, kumanikidzwa kwekukuya negwara zvinofanirwa kugadziriswa nguva dzose kuti zvibvise zvishoma nezvishoma kukanganisa kwekutsetseka, kuitira kuti straightedge ikwanise kusvika padanho repamusoro.
Kuongororwazve uye kugadziriswazve: Mushure mekupedza kuyera fine calibration, shandisa laser interferometer uye electronic level kuti uongorore zvakakwana straightedge zvakare kuti uve nechokwadi chekuti flatness error yenzvimbo yega yega yekuyera iri mukati meAA-level standard range. Kana zvikanganiso zvidiki zvikawanikwa munzvimbo yemuno, straightedge yakatarwa inofanira kuitwa kusvika flatness yese yestraightedge yasangana zvizere neAA-level zvinodiwa zveNIST certification.
V. Kunyorera uye Kuongorora Chitupa cheNIST
Mushure mekupedza kugadzirisa uye kusimbisa kuti straightedge yasvika padanho reAA-level, unogona kutumira chikumbiro checertification kuNIST. Munguva yekunyorera, parameters dzakadzama dze straightedge, tsananguro dze tekinoroji yekugadzirisa, marekodhi e calibration nezvimwe zvinhu zvinofanirwa kupihwa. NIST ichatumira vanoongorora vane hunyanzvi kuti vaite ongororo panzvimbo uye ongororo ye straightedge. Ongororo iyi ichafukidza zvinhu zvakawanda zvakaita se flatness, kugadzikana kwekupisa, uye kusakara kwe straightedge. Granite straightedge chete yakapasa ongororo yakasimba ndiyo inogona kuwana NIST certification uye kuva chigadzirwa chekuenzanisa mumunda wekuyera kwakarurama.
Nekutevera nhungamiro dzeZHHIMG granite straightedge calibration dzataurwa pamusoro apa, makambani nemasangano ekutsvagisa anogona kuzadzisa zvitupa zveNIST uye zvinangwa zveAA-level flatness zvinobudirira. Ingave mumaindasitiri ane zvinodiwa zvakanyanya zvemagadzirirwo akadai sekugadzira michina, aerospace, kana electronic chips, ZHHIMG granite straightedge yakasimbiswa neNIST ichave mubatsiri akavimbika mukuona kuti kuyerwa kwakarurama uye mhando yechigadzirwa, zvichibatsira makambani kuramba achibudirira mumunda wekuyera kwakarurama uye kufambira mberi kune ramangwana remagadzirirwo akanyanya.
Nguva yekutumira: Chivabvu-13-2025