I. Maitiro Ekugadzira Granite Straightedge
Kuongorora nekucheka zvinhu zvisina kuchekwa
Zvinodiwa pakusarudza zvinhu: Granite yemhando yepamusoro ine huremu hwe ≥2.7g/cm³ uye mwero wekunyudzwa kwemvura we < 0.1% (senge "Jinan Green" kubva kuShandong uye "Black Gold Sand" kubva kuIndia) inofanira kusarudzwa. Zvidimbu zvemineral zvinofanira kunge zvakafanana (zvidimbu zvequartz ≤2mm), zvisina mitswe nemaburi, uye matombo akavanzika anofanira kubviswa kuburikidza nekuona zvikanganiso zveX-ray.
Kucheka zvisina kunaka: Shandisa saha redhaimani rakatenderera kuti ucheke jira risina chinhu rakakura ne5-10mm kupfuura saizi yechigadzirwa chapera. Kukanganisa kwekutsvedza kwenzvimbo yekucheka kunofanirwa kudzorwa mukati me ±0.5mm.
2. Kurapa kwekukwegura
Kukwegura kwechisikigo: Isa muviri wegirini mumhepo isina chinhu kwemwedzi mitanhatu kusvika gumi nemiviri. Kuburikidza nemusiyano wekupisa pakati pemasikati nehusiku uye shanduko dzehunyoro, anopfuura 90% yekumanikidzwa kwemukati kunoburitswa kudzivirira kushanduka kweganda muchikamu chekupedzisira.
Kuchembera kwekugadzira (sarudzo): Vamwe vagadziri vanoshandisa chitofu chinodziya nguva dzose (100-150℃) kwemaawa makumi maviri nemana kuti vakurumidze kusunungurwa kwekushushikana, izvo zvakakodzera kuodha nekukurumidza, asi mhedzisiro yacho yakaderera zvishoma pane yekuchembera kwechisikigo.
3. Kukuya zvisina kunaka uye kugadzirisa pamusoro pechinhu
Kukuya nekuumba zvinhu zvisina kunaka: Shandisa vhiri rekukuya redhaimani rine mesh 200-400 kukuya nzvimbo isina chinhu, kubvisa mitsetse yekucheka, kugadzirisa kuti yakatsetseka kubva pa ±0.5mm kusvika ±0.1mm/m (100μm/m), uye kuona nzvimbo yekunongedzera.
Kurapa pamusoro payo kusingashande: Fukidza jira remupendero kana kuti penda mativi nepasi (sekupfapfaidza pendi inodzivirira ngura) kudzivirira kutsemuka kwemucheto uye kuwedzera kwehunyoro.
4. Kukuya nemazvo (maitiro makuru)
Kusvetuka kwakarurama kunowanikwa kuburikidza nekukuya kwehierarchical, uko kwakakamurwa kuita matanho matatu:
Kukuya zvisina kunaka: Shandisa mabrasives ane mambure 400-800 (silicon carbide kana diamond micro-powder) pamwe chete negranite grinding platform kugadzirisa kutsveyama kusvika ±10μm/m, uye kutsveyama kwepamusoro Ra≤0.8μm.
Kukuya nemazvo: Nekushandura kushandisa mabrasives ane mesh 1200-2000 uye kusanganisa ne electronic level (kunyatsorongeka ±1μm/m) kuti ionekwe nenguva chaiyo, kutsetseka kwacho kwavandudzwa kusvika ±3μm/m, uye kuomarara kwenzvimbo Ra iri ≤0.4μm.
Kukuya kwakapfava zvakanyanya (chinhu chikuru chezvigadzirwa zvakanyatsonaka): Nekushandisa upfu hudiki hweW10-W5 (hukuru hwezvikamu 5-10μm) uye mvura inopukuta makemikari, kuburikidza nekushanda kaviri kwe "kukuya kwemechanical + chemical corrosion", kutsetseka kwekupedzisira kunogona kusvika ±1μm/m, uye kuomarara kwepamusoro pechinhu Ra≤0.2μm.
5. Kuona nekugadzirisa nemazvo
Midziyo yekuona: Laser interferometer (kunyatsojeka ± 0.1μm) uye electronic level (resolution 0.001mm/m) zvinoshandiswa kuona kutwasuka uye kutwasuka kwechinhu, uye kudhirowa mepu yekugovera zvikanganiso.
Kugadziriswa kwe "closed-loop": Zvichibva padata rekuona, kukuya kwekuwedzera kwenzvimbo kunoitwa panzvimbo ine kukanganisa kukuru kuburikidza nemuchina wekukuya weCNC kusvika kukanganisa kwehukuru hwakazara kwadzorwa mukati menzvimbo yakatarwa.
6. Dziviriro yepamusoro uye kurongedza
Kudzivirira: Pfapfaidza silica coating ine saizi diki (5-10μm gobvu) pamusoro pechinhu chinotarisirwa, woisa wax inorwisa ngura pamusoro pechinhu chisiri kushanda kudzivirira kunyudzwa kwemvura kana oxidation panguva yekushandiswa kwenguva refu.
Kurongedza nemazvo: Yakarongedzwa mumabhokisi emapuranga asingavhunduki ane desiccant. Panguva yekufambisa, musiyano wetembiricha unodzorwa mukati me ±5℃ kudzivirira kudzikira kwemazvo kunokonzerwa nekudengenyeka.
Ii. Giredhi Rakanyanya Kunaka uye Mwero weIndasitiri
Kururama kwegranite straightedge kunobva pakukanganisa kwe flatness se core index. Zvichienderana ne national standard (GB/T 4977-2018) uye international standard (ISO 2768-2), magiredhi ayo e accuracy uye parameters inoenderana ndeiyi inotevera:
Marabhoritari epamusoro anogona kuwana kururama kwakakwana:
Kuburikidza nehunyanzvi hwekukuya hudiki (hwakadai sekupukuta kwemagetsi uye kugadzirisa ion beam), kusimba kwezvimwe zvigadzirwa zvepamusoro kunogona kupatsanurwa kusvika ku ±0.5μm/m (kureva kuti, kukanganisa pahurefu hwemita imwe neimwe hakupfuuri 0.5 micrometers), zvichisvika pakutarisa kwenzvimbo ye optical-grade. Zvinonyanya kushandiswa mumamiriro ezvinhu akanyatsojeka akadai seaerospace nemetrology institutes.
III. Kuenzanisa Zvinhu Zvinokanganisa Kururama
Pfupiso: Kunyatsojeka kwegranite straightedge kunoenderana nekudzora kwakazara kwe "zvinhu zvemhando yepamusoro + kukwegura kwenguva refu + kukuya kwakarongwa + nharaunda yakaoma", iyo nzira yekukuya ndiyo musimboti wekubudirira mukunyatsojeka. Nekuvandudzwa kwetekinoroji yekugadzira nano, kunyatsojeka kwayo kuri kufambira mberi zvishoma nezvishoma kuenda kuchikamu chepasi pe micron uye kwave chishandiso chisingatsiviwi mumunda wekugadzira kwepamusoro-soro.
Nguva yekutumira: Chivabvu-19-2025