I. Usoro mmepụta nke Granite Straightedge
Nleba anya na ịcha ihe akụrụngwa
Usoro nhọrọ ihe: granite dị elu nwere njupụta nke ≥2.7g/cm³ yana ọnụego mmịnye mmiri nke <0.1% (dị ka "Jinan Green" sitere na Shandong na "Black Gold Sand" si India) kwesịrị ịhọrọ. Ihe ndị dị na ịnweta kwesịrị ịbụ otu (quartz particles ≤2mm), na-enweghị mgbawa na pores, na nkume ntụpọ zoro ezo kwesịrị iwepụ site na nchọpụta ntụpọ X-ray.
Mkpụcha siri ike: Jiri okirikiri diamond bechapụ oghere ahụ n'ime oghere nke buru ibu 5-10mm karịa nha ngwaahịa emechara. Ekwesịrị ịchịkwa njehie flatness nke elu ịkpụ n'ime ± 0.5mm.
2. ọgwụgwọ ịka nká
Ike ịka nká: Tinye ahụ ndụ ndụ n'ikuku maka ọnwa 6 ruo 12. Site na ọdịiche dị n'etiti ehihie na abalị na mgbanwe nke iru mmiri, a na-ahapụ ihe karịrị 90% nke nrụgide dị n'ime iji gbochie nrụrụ n'oge ikpeazụ.
Artificial ịka nká (nhọrọ): Ụfọdụ ndị na-emepụta na-eji ọkụ ọkụ mgbe niile (100-150 ℃) maka awa 24 iji mee ka ntọhapụ nrụgide dịkwuo elu, nke kwesịrị ekwesị maka iwu ngwa ngwa, ma mmetụta ya dị ntakịrị karịa nke ịka nká.
3. Ihe siri ike egweri na ntụaka n'elu nhazi
Nri siri ike na ịkpụzi: Jiri 200-400 mesh diamond na-egweri wiil iji gwerie oghere, wepụ ahịrị ịkpụ, dozie flatness site na ± 0.5mm ruo ± 0.1mm / m (100μm / m), ma chọpụta ebe ntụaka.
Ọgwụgwọ elu na-adịghị arụ ọrụ: Chamfer ma ọ bụ kpuchie akụkụ na ala ala (dị ka ịgbasa agba mgbochi nchara) iji gbochie mgbawa ọnụ na mmụba mmịpụta mmiri.
4. Egweri nke ọma (usoro isi)
A na-enweta mli elu nke ọma site n'ịchịkọta ọkwa, nke kewara ụzọ atọ:
Na-egweri siri ike: Jiri 400-800 mesh abrasives (silicon carbide ma ọ bụ diamond micro-powder) na ngwakọta na ikpo okwu granite iji dozie flatness na ± 10μm / m, na elu roughness Ra≤0.8μm.
Ngwunye nkenke: Site n'ịgbanwe na 1200-2000 mesh abrasives na ijikọta ya na ọkwa eletrọnịkị (nkenke ± 1μm / m) maka nlekota oge n'ezie, a na-eme ka ọ dị larịị ka ọ bụrụ ± 3μm / m, na elu roughness Ra bụ ≤0.4μm.
Ultra-mma egweri (isi elu-nkenke ngwaahịa): Site na iji W10-W5 ọkwa micro-ntụ ntụ (otuba uru size 5-10μm) na chemical polishing mmiri mmiri, site dual edinam nke "mechanical egweri + chemical corrosion", ikpeazụ flatness nwere ike iru ± 1μm / m, na elu roughness Ram.2μm.
5. Nchọpụta na mgbazi ziri ezi
Nchọpụta akụrụngwa: A na-eji interferometer laser (nkenke ± 0.1μm) na ọkwa eletrọnịkị (mkpebi 0.001mm/m) na-eduzi nchọpụta zuru oke nke ịdị larịị na kwụ ọtọ, na ise map nkesa njehie.
Ndozi mgbazi mechiri emechi: Dabere na data achọpụtara, a na-eme ihe mgbakwunye mpaghara na mpaghara njehie dị elu site na igwe igwe CNC ruo mgbe a na-achịkwa njehie zuru oke n'ime oke ebumnuche.
6. Nchekwa elu na nkwakọ ngwaahịa
Ọgwụgwọ nchekwa: fesa mkpuchi silica nano-scale (5-10μm gbara ọkpụrụkpụ) n'elu ntụaka, ma tinye akwa mkpuchi mgbochi corrosion n'elu ebe anaghị arụ ọrụ iji gbochie mmịpụta mmiri ma ọ bụ oxidation n'oge eji ogologo oge.
Nkwakọ ngwaahịa ziri ezi: A na-akwakọba ya n'ime igbe osisi na-adịghị akpata oyi n'ahụ ya na ndị na-ehicha ihe. N'oge njem, a na-achịkwa ọdịiche okpomọkụ n'ime ± 5 ℃ iji zere attenuation ziri ezi kpatara site na ịma jijiji.
Ii. Ọkwa ọkwa kachasị elu yana ụkpụrụ ụlọ ọrụ
Izi ezi nke granite kwụ ọtọ dabere na njehie flatness dị ka isi index. Dị ka ọkọlọtọ mba (GB/T 4977-2018) na ọkọlọtọ mba ụwa (ISO 2768-2), akara ule ya ziri ezi na paramita kwekọrọ bụ ndị a:
Ụlọ nyocha ndị kachasị elu nwere ike nweta izi ezi kachasị:
Site na nano-ọnụ ọgụgụ usoro egweri (dị ka magneorheological polishing na ion beam mgbanwe), na flatness nke ụfọdụ elu-ọgwụgwụ ngwaahịa nwere ike agbajikwa site na ± 0.5μm/m (ie, njehie kwa mita ogologo adịghị gafere 0,5 micrometers), na-eru nso ngwa anya-ọkwa ụgbọelu ntụaka. A na-ejikarị ha eme ihe n'ọnọdụ dị oke oke dịka ikuku ikuku na ụlọ ọrụ metrology.
Iii. Ntụle ihe ndị na-emetụta izi ezi
Nchịkọta: Nkọwa dị elu nke granite straightedge na-adabere na njikwa usoro zuru oke nke "ihe ndị dị elu dị elu + ogologo oge ịka nká + graded na-egweri + gburugburu ebe obibi siri ike", n'ime nke usoro egweri bụ isi maka ọganihu na nkenke. Site na mmepe nke teknụzụ nanofabrication, nkenke ya na-eji nwayọọ nwayọọ na-aga n'ihu na ọkwa sub-micron ma ghọọ ngwá ọrụ benchmark na-enweghị ike dochie anya n'ọhịa nke mmepụta ihe dị elu.
Oge nzipu: Mee-19-2025