I. Cov txheej txheem ntau lawm ntawm Granite Straightedge
Raw khoom kuaj thiab txiav
Cov txheej txheem xaiv cov khoom siv: Cov granite zoo nrog qhov ceev ntawm ≥2.7g / cm³ thiab qhov nqus dej ntawm <0.1% (xws li "Jinan Green" los ntawm Shandong thiab "Black Gold Sand" los ntawm Is Nrias teb) yuav tsum tau xaiv. Cov pob zeb hauv av yuav tsum tsis sib xws (quartz particles ≤2mm), tsis muaj cov kab nrib pleb thiab qhov hws, thiab cov pob zeb tsis zoo yuav tsum raug tshem tawm los ntawm kev kuaj pom qhov tsis zoo.
Rough txiav: Siv lub pob zeb diamond ncig pom los txiav qhov khoob rau hauv qhov khoob uas yog 5-10mm loj dua qhov loj ntawm cov khoom tiav. Qhov kev ua yuam kev flatness ntawm qhov chaw txiav yuav tsum tswj tsis pub dhau ± 0.5 hli.
2. Kev laus kev kho mob
Natural aging: Muab lub cev ntsuab tso rau hauv qhov qhib cua rau 6 mus rau 12 lub hlis. Los ntawm qhov kub ntawm qhov sib txawv nruab hnub thiab hmo ntuj thiab qhov hloov pauv ntawm cov av noo, tshaj 90% ntawm cov kev ntxhov siab sab hauv raug tso tawm kom tsis txhob deformation nyob rau theem tom ntej.
Artificial aging (optional): Qee lub tuam txhab siv lub qhov cub kub kub (100-150 ℃) rau 24 teev kom ceev cov kev ntxhov siab tso tawm, uas tsim nyog rau kev txiav txim sai, tab sis cov nyhuv yog me ntsis qis dua qhov kev laus ntawm ntuj tsim.
3. Rough sib tsoo thiab siv nto ua
Rough sib tsoo thiab shaping: Siv 200-400 mesh pob zeb diamond sib tsoo lub log kom zom cov khoob, tshem tawm cov kab txiav, kho qhov tiaj ntawm ± 0.5mm mus rau ± 0.1mm / m (100μm / m), thiab txiav txim siab qhov chaw siv.
Kev kho deg tsis ua haujlwm: Chamfer lossis lub tsho tiv thaiv sab thiab hauv qab (xws li txau cov xim pleev xim) txhawm rau tiv thaiv ntug kev tawg thiab kev nqus noo noo.
4. Precision sib tsoo (cov txheej txheem tseem ceeb)
Lub precision leap yog tiav los ntawm hierarchical sib tsoo, uas tau muab faib ua peb theem:
Kev sib tsoo ntxhib: Siv 400-800 mesh abrasives (silicon carbide lossis pob zeb diamond micro-powder) ua ke nrog granite sib tsoo platform los kho qhov tiaj tus mus rau ± 10μm / m, thiab qhov roughness Ra≤0.8μm.
Kev sib tsoo Precision: Los ntawm kev hloov mus rau 1200-2000 mesh abrasives thiab ua ke nrog qib hluav taws xob (qhov tseeb ± 1μm / m) rau kev saib xyuas lub sijhawm tiag tiag, qhov flatness tau raug txhim kho mus rau ± 3μm / m, thiab qhov roughness Ra yog ≤0.4μm.
Ultra-fine sib tsoo (qhov tseem ceeb rau cov khoom lag luam siab): Los ntawm kev siv W10-W5 qib micro-powder (particle loj 5-10μm) thiab tshuaj polishing kua, los ntawm ob qho kev txiav txim ntawm "mechanical sib tsoo + tshuaj corrosion", qhov kawg flatness tuaj yeem ncav cuag ± 1μm / m, thiab qhov roughness ntawm Ra≤0.2μm.
5. Kev kuaj xyuas meej thiab kho
Cov cuab yeej kuaj xyuas: Lub laser interferometer (qhov tseeb ± 0.1μm) thiab qib hluav taws xob (kev daws teeb meem 0.001mm / m) yog siv los ua kom pom tag nrho ntawm qhov ncaj thiab ncaj, thiab kos daim ntawv qhia kev ua yuam kev.
Kaw-loop kho: Raws li cov ntaub ntawv tshawb pom, kev sib tsoo hauv zos ntxiv yog nqa tawm ntawm qhov chaw ua yuam kev siab dhau los ntawm CNC sib tsoo tshuab kom txog rau thaum qhov kev ua yuam kev tag nrho yog tswj nyob rau hauv lub hom phiaj ntau.
6. Kev tiv thaiv nto thiab ntim khoom
Kev tiv thaiv kev kho mob: Txau cov nano-scale silica txheej (5-10μm tuab) rau ntawm qhov chaw siv, thiab siv cov txheej txheem tiv thaiv corrosion rau ntawm qhov chaw uas tsis ua hauj lwm los tiv thaiv kev nqus dej los yog oxidation thaum siv mus ntev.
Precision ntim: Nws tau ntim rau hauv cov ntoo shockproof nrog desiccants. Thaum lub sij hawm thauj mus los, qhov kub sib txawv yog tswj nyob rau hauv ± 5 ℃ kom tsis txhob precision attenuation los ntawm kev co.
Ii. Highest Precision Qib thiab kev lag luam Standards
Qhov tseeb ntawm granite straightedge yog raws li qhov kev ua yuam kev flatness raws li qhov tseem ceeb index. Raws li lub teb chaws tus qauv (GB / T 4977-2018) thiab tus qauv thoob ntiaj teb (ISO 2768-2), nws cov qhab nia raug thiab cov tsis sib xws yog raws li hauv qab no:
Cov chav kuaj saum toj kawg nkaus tuaj yeem ua tiav qhov tseeb:
Los ntawm nano-scale sib tsoo cov tswv yim (xws li magneorheological polishing thiab ion beam hloov), lub flatness ntawm ib co high-end khoom yuav tawg mus rau ± 0.5μm / m (piv txwv li, qhov yuam kev ib 'meter' ntev tsis tshaj 0.5 micrometers), mus txog lub optical-qib dav hlau siv. Lawv tsuas yog siv nyob rau hauv cov xwm txheej tsis tshua muaj neeg xws li aerospace thiab metrology institutes.
Iii. Kev sib piv ntawm cov xwm txheej cuam tshuam rau qhov tseeb
Summary: Lub siab precision ntawm granite straightedge cia siab rau tag nrho cov txheej txheem tswj ntawm "cov ntaub ntawv zoo heev + ultra-ntev laus + graded sib tsoo + hnyav ib puag ncig", uas cov txheej txheem sib tsoo yog lub hauv paus rau kev ua tiav hauv precision. Nrog rau txoj kev loj hlob ntawm nanofabrication technology, nws precision yog maj mam nce mus rau lub sub-micron qib thiab tau dhau los ua ib tug irreplaceable benchmark cuab tam nyob rau hauv lub teb ntawm high-end manufacturing.
Post lub sij hawm: May-19-2025