I. Kaʻina hana o Granite Straightedge
Ka nānā ʻana a me ka ʻoki ʻana i nā mea maka
Pono e koho ʻia nā pae koho waiwai: ʻO ka granite kiʻekiʻe me ka nui o ≥2.7g/cm³ a me ka nui o ka lawe ʻana i ka wai o <0.1% (e like me "Jinan Green" mai Shandong a me "Black Gold Sand" mai India). Pono nā ʻāpana mineral e like (nā ʻāpana quartz ≤2mm), me ka ʻole o nā māwae a me nā pores, a pono e hoʻoneʻe ʻia nā pōhaku kīnā huna ma o ka ʻike hewa ʻana o X-ray.
ʻOki ʻokiʻoki: E hoʻohana i ka ʻili daimana e ʻoki i ka blank i kahi hakahaka ʻoi aku ka nui o 5-10mm ma mua o ka nui o ka huahana. Pono e hoʻomalu ʻia ka hewa palahalaha o ka ʻili i loko o ± 0.5mm.
2. Lapaau kahiko
ʻO ka ʻelemakule kūlohelohe: E kau i ke kino ʻōmaʻomaʻo i ka lewa ākea no 6 a 12 mau mahina. Ma o ka ʻokoʻa wela ma waena o ke ao a me ka pō a me nā loli i ka haʻahaʻa, ua hoʻokuʻu ʻia ma luna o 90% o ke koʻikoʻi kūloko e pale i ka deformation i ka pae hope.
ʻO ka makahiki kahiko (koho): Hoʻohana kekahi mau mea hana i ka umu wela mau (100-150 ℃) no nā hola 24 e hoʻolōʻihi i ka hoʻokuʻu kaumaha, kūpono ia no nā kauoha wikiwiki, akā ʻoi aku ka haʻahaʻa o ka hopena ma mua o ka ʻelemakule maoli.
3. ʻO ka wili ʻana a me ka hana ʻana i ka ʻili
ʻO ka wili ʻana a me ka hana ʻana: E hoʻohana i ka huila wili daimana 200-400 mesh e wili i ka hakahaka, e wehe i nā laina ʻoki, e hoʻoponopono i ka palahalaha mai ± 0.5mm a ± 0.1mm/m (100μm/m), a e hoʻoholo i ka ʻili kuhikuhi.
Hoʻomaʻamaʻa ʻole i ka ʻili: Chamfer a ʻaʻahu paha i ka ʻaoʻao a me lalo o ka ʻili (e like me ke kāpī ʻana i ka pena anti-rust) i mea e pale ai i ka haki ʻana o ka ʻaoʻao a me ka hoʻonui ʻana i ka makū.
4. ʻO ka wili pololei (kaʻina kumu)
Loaʻa ka lele pololei ma o ka hierarchical grinding, i māhele ʻia i ʻekolu mau pae:
ʻO ka wili ʻāʻī: E hoʻohana i ka 400-800 mesh abrasives (silicon carbide a i ʻole daimana micro-powder) i hui pū ʻia me kahi paepae wili pōhaku no ka hoʻoponopono ʻana i ka palahalaha i ± 10μm/m, a me ka roughness ʻili Ra≤0.8μm.
ʻO ka wili pololei: Ma ka hoʻololi ʻana i ka 1200-2000 mesh abrasives a me ka hui pū ʻana me kahi pae uila (ka pololei ± 1μm / m) no ka nānā ʻana i ka manawa maoli, ua hoʻomaikaʻi ʻia ka palahalaha i ± 3μm / m, a ʻo ka roughness ʻili Ra ≤0.4μm.
ʻO ka wili liʻiliʻi (ki i nā huahana kiʻekiʻe) : Ma ka hoʻohana ʻana i ka W10-W5 grade micro-powder (particle size 5-10μm) a me ka wai polishing kemikal, ma o ka hana ʻelua o "mechanical grinding + chemical corrosion", hiki i ka flatness hope ke hiki i ± 1μm / m, a me ka ʻili ʻili Ra≤0.2μm.
5. ʻIke pololei a hoʻoponopono
Mea hoʻohana ʻike: Hoʻohana ʻia kahi interferometer laser (pololei ± 0.1μm) a me kahi pae uila (hoʻonā 0.001mm/m) e hana i ka ʻike piha piha o ka palahalaha a me ka pololei, a e kaha i kahi palapala hoʻohele hewa.
Hoʻoponopono paʻa-loop: Ma muli o ka ʻikepili ʻike, lawe ʻia ka wili hoʻohui kūloko ma kahi o ka hewa nui ma o ka mīkini wili CNC a hiki i ka hoʻomalu ʻia ʻana o ka hewa piha i loko o ka pae i koho ʻia.
6. Ka pale ʻana i ka ʻili a me ka hoʻopili
Lapaʻau pale: E kāpī i kahi uhi silica nano-scale (5-10μm mānoanoa) ma ka ʻaoʻao kuhikuhi, a kau i kahi ʻāpana wax anti-corrosion ma ka ʻili hana ʻole e pale ai i ka hoʻoheheʻe ʻana a i ʻole ka oxidation i ka wā lōʻihi.
Hoʻopili pololei: Hoʻopili ʻia ia i loko o nā pahu lāʻau shockproof me nā desiccants. I ka wā o ka lawe ʻana, mālama ʻia ka ʻokoʻa wela i loko o ± 5 ℃ e pale i ka attenuation pololei i hoʻokumu ʻia e ka haʻalulu.
Ii. Nā Kūlana Kiʻekiʻe a me nā Kūlana ʻOihana
ʻO ka pololei o ka granite straightedge e pili ana i ka hewa flatness ma ke ʻano he kumu kuhikuhi. E like me ke kūlana aupuni (GB/T 4977-2018) a me ke kūlana honua (ISO 2768-2), ʻo kāna mau helu pololei a me nā ʻāpana pili e like me kēia:
Hiki i nā laboratories kiʻekiʻe ke hoʻokō i ka pololei loa:
Ma o ka nano-scale grinding techniques (e like me ka magneorheological polishing a me ka ion beam modification), hiki ke haki i ka palahalaha o kekahi mau huahana kiʻekiʻe a hiki i ± 0.5μm/m (ʻo ia hoʻi, ʻaʻole i ʻoi aku ka hapa o ka lōʻihi o ka mika ma mua o 0.5 micrometers), e hoʻokokoke ana i ka kuhikuhi o ka mokulele optical-grade. Hoʻohana nui ʻia lākou i nā hiʻohiʻona kūpono loa e like me ka aerospace a me nā keʻena metrology.
Iii. Hoʻohālikelike i nā mea e pili ana i ka pololei
Hōʻuluʻulu manaʻo: ʻO ke kiʻekiʻe kiʻekiʻe o ka granite straightedge e hilinaʻi ana i ka mana piha o ka "kiʻekiʻe kiʻekiʻe o nā kumu waiwai + ultra-long aging + graded grinding + harsh environment", ma waena o ke kaʻina wili ke kumu no ka holomua i ka pololei. Me ka hoʻomohala ʻana o ka ʻenehana nanofabrication, ke neʻe mālie nei kona kikoʻī i ka pae sub-micron a ua lilo i mea paʻa pono ʻole i ke kahua o ka hana kiʻekiʻe.
Ka manawa hoʻouna: Mei-19-2025