Pehea ka pololei o ka papa ʻili granite?

He mau mea hana pololei nā papa ʻili Granite i hoʻohana nui ʻia i ka metrology, ka nānā ʻana, a me nā noi mīkini. Hana ʻia lākou mai ka granite kūlohelohe kiʻekiʻe, i mahalo ʻia no kona kūpaʻa, ka lōʻihi, a me ka palahalaha. Akā pehea ka pololei o kēia mau papa?
Paʻa Kūlohelohe
Hoʻokumu ʻia ka Granite ma luna o nā miliona mau makahiki ma lalo o ke kaomi nui a me ka wela, e hopena ana i kahi ʻano paʻa a maikaʻi. ʻO kēia kūpaʻa kūlohelohe e hoʻolilo i ka granite i mea kūpono no nā papa ʻili, no ka mea, kūʻē ia i ka deformation mai nā loli o ka mahana, ka makū, a me ke kaumaha mechanical. ʻO ka ʻoiaʻiʻo, he haʻahaʻa ka coefficient o ka hoʻonui wela o ka granite, ʻo ia hoʻi, hoʻonui a ʻaelike iki me nā loli o ka mahana. Hōʻoia kēia waiwai e noho palahalaha a pololei ka ʻili o ka papa, ʻoiai ma nā wahi paʻakikī.
Hana Hana Kūpono
No ka hoʻokō ʻana i nā pae kiʻekiʻe loa o ka pololei, ua hana ʻia nā papa ʻili granite i kahi kaʻina hana hana koʻikoʻi. ʻO ka mea mua, ua koho pono ʻia ka poloka granite no kona ʻano maikaʻi a me ke kūlike. A laila, ʻoki ʻia i ka nui a me ke ʻano i makemake ʻia. A laila hele mai ke kaʻina hana lapping a me polishing, kahi e hoʻomaʻemaʻe mālie ʻia ai ka ʻili me ka hoʻohana ʻana i nā mea abrasive. Hiki i kēia kaʻina hana kikoʻī ke hoʻokō i ka ʻili haʻahaʻa loa a me nā hoʻomanawanui flatness kiʻekiʻe.

Nā Kūlana Pololei
ʻO ka pololei o nā papa ʻili granite e wehewehe pinepine ʻia e ko lākou ʻae ʻana i ka palahalaha. Wahi a ke kūlana B89.3.7 o ka American Society of Mechanical Engineers (ASME), ua hoʻokaʻawale ʻia nā papa ʻili ma muli o ko lākou palahalaha. ʻO ka papa kiʻekiʻe loa, ʻo AA, ka mea nona nā ʻae ʻana paʻa loa, e kūpono ai no nā keʻena hoʻokolohua calibration a me ka metrology kiʻekiʻe. Hoʻohana pinepine ʻia nā papa Papa A ma nā wahi nānā, ʻoiai ʻo nā papa Papa B, me nā ʻae ʻana palupalu iki, hiki ke loaʻa ma nā papahele hale kūʻai.
Eia kekahi laʻana, hiki i kahi papa ʻili granite 12" x 12" AA-grade ke loaʻa kahi ʻae pālahalaha o ±0.00005 ʻīniha ma kona ʻili holoʻokoʻa. ʻO kēia pae o ka pololei e ʻae ai i nā ana pololei loa a me nā calibrations o nā mea hana a me nā ʻāpana ʻē aʻe.
Nā Kumu e Pili Ana i ka Pololei
ʻOiai he pololei maoli nā papa ʻili granite, hiki i kekahi mau mea ke hoʻopilikia i kā lākou hana i ka hala ʻana o ka manawa. ʻO ka lawelawe pono ʻole, e like me ka hāʻule ʻana a i ʻole ke kau ʻana i ka papa i ka ikaika nui, hiki ke hana i nā ʻāpana a i ʻole nā ​​māwae e hoʻopilikia ai i ka palahalaha. Eia kekahi, hiki i nā mea pili i ke kaiapuni e like me nā loli wela nui a i ʻole nā ​​​​pae haʻahaʻa kiʻekiʻe ke hoʻopilikia i ka pololei o ka papa. ʻO ka hoʻomaʻemaʻe mau a me ka mālama ʻana, a me ka mālama pono ʻana, he mea nui ia e mālama i ka pololei o ka papa.
I ka hopena, hāʻawi nā papa ʻili granite i ka pololei loa, e lilo ana lākou i koho hilinaʻi no nā noi kahi e koʻikoʻi ai ka pololei. ʻO ko lākou kūpaʻa kūlohelohe, i hui pū ʻia me nā ʻano hana hana pololei, e hiki ai iā lākou ke hāʻawi i kahi ʻili kuhikuhi paʻa a pololei no nā ʻano ʻoihana like ʻole, mai ka aerospace a me ke kaʻa a hiki i nā mea uila a me ka hana ʻana i nā mea lapaʻau.