ʻ
He kiʻekiʻe loa nā koi o ka nānā ʻana i nā pahi ʻenekini aero no ke kūpaʻa, ka pololei a me ka hilinaʻi o ke kahua. Ke hoʻohālikelike ʻia me nā kahua nānā kuʻuna e like me ka hao hao a me ka alumini alloy, hōʻike nā kahua granite i nā pono hiki ʻole ke hoʻololi ʻia i nā ʻōkuhi koʻikoʻi he nui.
I. Ke kūpaʻa wela: He "Pale kūlohelohe" e kūʻē i ka hoʻopilikia ʻana o ka mahana
ʻO ke koina o ka hoʻonui wela o nā kahua hao i hoʻolei ʻia ma kahi o 10-12 ×10⁻⁶/℃, a ʻo ke kiʻekiʻe o nā mea hoʻohuihui alumini he 23 × 10⁻⁶/℃. Ma lalo o ka wela i hana ʻia e ka hana o nā lako ʻike a i ʻole nā fluctuations i ka mahana o ke kaiapuni, hiki ke hana ʻia ka deformation dimensional, e alakaʻi ana i nā hewa ʻike. ʻO ke koina o ka hoʻonui wela o ka kahua granite he (4-8) ×10⁻⁶/℃ wale nō. I loko o kahi loli mahana o ±5 ℃, ʻo ka loli dimensional o ka paepae granite 1-mika ka lōʻihi he emi ma mua o 0.04μm, hiki ke hoʻowahāwahā ʻia. Hāʻawi kēia ʻano hoʻonui wela haʻahaʻa loa i kahi ʻili kuhikuhi paʻa no nā lako kikoʻī e like me nā interferometers laser a me nā mīkini ana ʻekolu-coordinate, e pale ana i nā ʻokoʻa ana o nā contours blade i hoʻokumu ʻia e ka deformation thermal.
Ii. Hana Kū'ē i ka Haʻalulu: He "Pale Kūpono" no ka Hoʻopau ʻana i ke Kū'ē Haʻalulu
Ma ka hale hana hana mokulele, pinepine ka haʻalulu o ke kaiapuni i hoʻokumu ʻia e ka hana o nā mea hana mīkini a me ka neʻe ʻana o nā limahana. ʻAʻole lawa ka paʻakikī o nā kahua alumini, a ua kaupalena ʻia ka hana damping o nā kahua hao i hoʻolei ʻia, e paʻakikī ai ke pale pono i nā haʻalulu. ʻO ke ʻano kristal mānoanoa i loko o ka paepae granite e hāʻawi iā ia me nā ʻano damping maikaʻi loa, me ka lakio damping o 0.05-0.1, ʻo ia hoʻi he ʻelima manawa o ka hao i hoʻolei ʻia a he ʻumi manawa o ka alumini. Ke hoʻouna ʻia nā haʻalulu o waho i ka paepae, hiki iā ia ke hoʻēmi i ka ikehu haʻalulu ma mua o 90% i loko o 0.3 kekona, e hōʻoia ana e hiki i nā lako ʻike ke hoʻopuka i ka ʻikepili pololei i kahi kaiapuni haʻalulu.
Iii. Paʻa a me ke Kū'ē ʻana i ka ʻAʻahu: He "Pū Paʻa" e Hōʻoiaʻiʻo ana i ka Pololei Lōʻihi
Ma hope o ka hoʻohana ʻia ʻana no kekahi manawa, ua maʻalahi ka paepae hao i nā māwae luhi, kahi e hoʻopilikia ai i kona pololei. He haʻahaʻa ka paʻakikī o nā paepae alumini a me ke kūpaʻa ʻole i ka ʻaʻahu ʻana, e paʻakikī ai ke kū i ka hoʻohana pinepine ʻana i nā lako nānā kaumaha. ʻO ka nui o ka paepae granite i hiki i ka 2.6-2.8g /cm³, ʻoi aku kona ikaika compressive ma mua o 200MPa, a ʻo kona paʻakikī Mohs he 6-7. Ke kau ʻia i nā ukana kaumaha a me ka friction lōʻihi mai nā lako nānā pahi, ʻaʻole ia e maʻalahi i ka ʻaʻahu a i ʻole ka deformation. Hōʻike ka ʻikepili mai kekahi ʻoihana mokulele ma hope o ka hoʻohana mau ʻana no ʻewalu mau makahiki, ua kāohi ʻia ka loli pālahalaha o ka paepae granite i loko o ±0.1μm/m, ʻoiai pono e hoʻoponopono hou ʻia ka paepae hao ma hope o ʻekolu mau makahiki wale nō.
Iv. Paʻa Kemika: ʻO ke "Kihi Paʻa" no ka Hoʻololi ʻana i nā Kaiapuni Paʻakikī
Hoʻohana pinepine ʻia nā reagents kemika e like me nā mea hoʻomaʻemaʻe a me nā lubricants i nā hale hana nānā mokulele. He maʻalahi nā kahua alumini i ka pala, a hiki ke hoʻopilikia ʻia nā kahua hao i hoʻolei ʻia i ka pololei ma muli o ka oxidation a me ka popo. ʻO ka Granite ka mea nui i hana ʻia me nā minelala e like me ka quartz a me ka feldspar. Loaʻa iā ia nā waiwai kemika paʻa, kahi pae hoʻomanawanui pH o 1 a 14, a hiki ke pale aku i ka ʻino ʻana o nā mea kemika maʻamau. ʻAʻohe ua ion metala ma luna o kona ʻili, e hōʻoiaʻiʻo ana i kahi kaiapuni ʻike maʻemaʻe a pale aku i nā hewa ana i hoʻokumu ʻia e ka haumia kemika.
V. Pololei o ka Mīkini: ʻO ke "Kumu Kūpono" no ke ana pololei
Ma o nā ʻenehana ultra-precision e like me ka polishing magnetorheological a me ka hana ʻana i ka ion beam, hiki i nā kahua granite ke hoʻokō i ka pololei o ka hana ʻana o ±0.1μm/m no ka flatness a me Ra≤0.02μm no ka roughness o ka ʻili, ʻoi aku ka maikaʻi ma mua o nā kahua hao i hoʻolei ʻia (±1μm/m no ka flatness) a me nā kahua alumini alloy (±2μm/m no ka flatness). Hāʻawi kēia ʻili kiʻekiʻe i kahi kuhikuhi hoʻonohonoho pololei no nā sensor kiʻekiʻe a me nā probes ana, e hoʻomaʻamaʻa ana i ka hoʻokō ʻana i ke ana ʻekolu-dimensional o nā pahi aero-engine ma ka pae 0.1μm.
Ma nā hiʻohiʻona koi nui o ka nānā ʻana i ka pahi ʻenekini aero, ʻo nā kahua granite, me ko lākou mau pono piha i ka paʻa wela, ke kū'ē ʻana i ka haʻalulu, ka paʻakikī, ke kūpaʻa kemika a me ka pololei o ke kaʻina hana, ua lilo i koho maikaʻi loa e hōʻoia i ka pololei o ka nānā ʻana a me ka hilinaʻi, e kau ana i kahi kahua paʻa no ka hoʻomohala kiʻekiʻe o ka hana mokulele.
Ka manawa hoʻouna: Mei-22-2025