He aha nā mea maikaʻi o nā paepae granite ma mua o nā paepae nānā ʻē aʻe i ka nānā ʻana i nā ʻāpana aero engine?

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ʻO ka nānā ʻana i nā lau ʻenekini aero he koi kiʻekiʻe loa no ka paʻa, pololei a me ka hilinaʻi o ka paepae. Ke hoʻohālikelike ʻia me nā paepae nānā kuʻuna e like me ka hao a me ka alumini alumini, hōʻike nā paepae granite i nā pono hiki ʻole ke hoʻololi ʻia i nā hōʻailona koʻikoʻi. ʻ
I. Paʻa wela: He "Paʻa Kūlohelohe" e kūʻē i ka hoʻopilikia ʻana i ka wela
ʻO ka coefficient o ka hoʻonui wela o nā paepae hao he 10-12 × 10⁻⁶/℃, a ʻo ke kiʻekiʻe o nā alumini alumini he 23 × 10⁻⁶/℃. Ma lalo o ka wela i hana ʻia e ka hana ʻana o nā mea ʻike a i ʻole nā ​​loli i ka mahana o ke kaiapuni, hiki ke hoʻololi ʻia ka dimensional deformation, e alakaʻi ana i nā hewa ʻike. He (4-8) wale nō ×10⁻⁶/℃ ka helu helu o ka hoʻonui wela o ka paepae pōhaku. I loko o kahi hoʻololi wela o ± 5 ℃, ʻoi aku ka liʻiliʻi o ka hoʻololi ʻana o ka paepae granite 1 mika lōʻihi ma mua o 0.04μm, a aneane hiki ke nānā ʻole ʻia. Hāʻawi kēia ʻano hoʻonui haʻahaʻa haʻahaʻa haʻahaʻa i kahi papa kuhikuhi paʻa no nā lako kikoʻī e like me ka laser interferometers a me nā mīkini ana ʻekolu-coordinate, e pale ana i nā ana deviations o nā contours blade ma muli o ka deformation thermal. ʻ

Ii. Hana Anati-vibration: He "Keakea Pono" no ka hoopau ana i ka hookuonoono
I loko o ka hale hana hana mokulele, ʻo ka haʻalulu o ke kaiapuni i hana ʻia e ka hana ʻana o nā mea mīkini a me ka neʻe ʻana o nā limahana. ʻAʻole lawa ka rigidity o nā paepae alumini, a ua kaupalena ʻia ka hana hoʻoheheʻe ʻana o nā papa hao hao, e paʻakikī ai i ka pale ʻana i nā haʻalulu. ʻO ke ʻano aniani ʻeleʻele i loko o ka paepae granite e hāʻawi iā ia i nā hiʻohiʻona hoʻoheheʻe maikaʻi loa, me ka ratio damping o 0.05-0.1, ʻo ia ka ʻelima mau manawa o ka hao a he ʻumi mau manawa o ka alumini alumini. Ke hoʻouna ʻia nā haʻalulu o waho i ka paepae, hiki iā ia ke attenuate i ka ikehu vibration ma mua o 90% i loko o 0.3 kekona, e hōʻoia ana e hiki i nā mea ʻike ke hoʻopuka i ka ʻikepili pololei i loko o kahi kaiapuni. ʻ
Iii. ʻO ke kūpaʻa a me ka ʻaʻahu: He "Paʻa Paʻa" e hōʻoia ana i ka pololei lōʻihi
Ma hope o ka hoʻohana ʻia ʻana no kekahi manawa, ʻoi aku ka maikaʻi o ka paepae hao i nā māwae luhi, e pili ana i kona pololei. ʻO nā paepae alumini alumini he haʻahaʻa haʻahaʻa a me ke kūpaʻa maikaʻi ʻole, e paʻakikī ke kū i ka hoʻohana pinepine ʻana i nā lako nānā koʻikoʻi. ʻO ka nui o ka paepae granite a 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 haʻahaʻa kaumaha a me ka friction lōʻihi mai nā lako nānā maka, ʻaʻole hiki ke ʻaʻahu a deformation paha. Hōʻike ka ʻikepili mai kahi ʻoihana mokulele ma hope o ka hoʻohana mau ʻana no ʻewalu mau makahiki, e hoʻomalu ʻia ka hoʻololi palahalaha 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. ʻ
Iv. Paʻa Kemika: Ka "Pohaku 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 papa hana hoʻokele mokulele. Hiki ke hoʻopōʻino ʻia nā paepae alumini, a hiki ke hoʻopili ʻia nā paepae hao i ka pololei ma muli o ka oxidation a me ka ʻōpala. ʻO ka Granite ka mea nui i nā minerale e like me ka quartz a me ka feldspar. Loaʻa iā ia nā waiwai kemika paʻa, ka pae hoʻomanawanui pH o ka 1 a hiki i ka 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 hana ʻia e ka pollution kemika. ʻ
V. Mīkini Pono: Ka "Kumu Pono" no ke ana pololei
Ma o nā ʻenehana ultra-precision e like me ka magnetorheological polishing a me ka hoʻoheheʻe ʻana i ka ion, hiki i nā paepae granite ke hoʻokō i ka pololei o ka hana ʻana o ± 0.1μm/m no ka palahalaha a me Ra≤0.02μm no ka ʻeleʻele o ka ʻili, ʻoi aku ma mua o nā paepae hao (± 1μm/m no ka pālahalaha) a me nā paepae aluminika no ka palahalaha (± 2μm/m). Hāʻawi kēia ʻili kiʻekiʻe i kahi kuhikuhi hoʻonohonoho pololei no nā mea ʻike kiʻekiʻe a me nā ana ʻana, e hoʻomaʻamaʻa i ka hoʻokō ʻana i nā ana contour ʻekolu-dimensional o nā aero-engine blades ma ka pae 0.1μm. ʻ
I nā hiʻohiʻona kiʻekiʻe o ka nānā ʻana o ka ʻenekini aero, nā papa pōhaku granite, me kā lākou mau pono piha i ka thermal stability, vibration resistance, rigidity, chemical stability a me ka hoʻoponopono pololei ʻana, ua lilo i koho maikaʻi loa e hōʻoia i ka pololei a me ka hilinaʻi o ka nānā ʻana.