No ke aha e koho ai i ka granite ma kahi o ka metala no nā huahana Granite Air Bearing Stage

I ka ʻimi ʻana i nā lako hoʻonohonoho pololei, aia kekahi mau koho i loaʻa ma ka mākeke. I waena o lākou, ʻo ka granite a me ka metala ʻelua mau mea i hoʻohana pinepine ʻia. Eia nō naʻe, no nā huahana Granite Air Bearing Stage, koho pinepine ʻia ka granite ma mua o ka metala. No ke aha e koho ai ka poʻe i ka granite ma mua o ka metala no kēia mau huahana? Eia kekahi mau kumu:

1. Paʻa a me ke kūpaʻa
Ua kaulana ʻo Granite no kona kūpaʻa a me ke kūpaʻa, ʻo ia hoʻi he mea maikaʻi loa ia no nā huahana pae ea. Pono kēia mau huahana i kahi kiʻekiʻe o ka pololei, a ʻo nā ʻokoʻa liʻiliʻi a i ʻole nā ​​haʻalulu hiki ke hana i nā hewa a me nā hewa. ʻOiai he pōhaku kūlohelohe ʻo Granite, he mānoanoa a paʻa hoʻi, kahi e hōʻemi nui ai i nā manawa kūpono o kekahi oscillation a neʻe paha, e hōʻoiaʻiʻo ana i kahi kahua paʻa, ʻaʻohe haʻalulu e hiki ke kū i ka hoʻohana ikaika.

2. Ke kūpaʻa ʻana i ka palaho
I kekahi mau noi, hiki ke hōʻike ʻia nā huahana pae ea i nā mea ʻino. ʻO nā metala e like me ka hao a me ke kila, ka mea i hoʻohana pinepine ʻia i nā mīkini, hiki ke popo a pala i ka hala ʻana o ka manawa ke hōʻike ʻia i ka makū a me nā kemika e hiki ai ke hōʻino i nā huahana. ʻAʻole e like me ka metala, ʻaʻole porous ka granite a ʻaʻole popo a pala paha, e lilo ia i koho hilinaʻi no nā noi e pono ai ka hana lōʻihi a hilinaʻi hoʻi.

3. Kiʻekiʻe pololei
Hoʻopili pinepine ʻia ka granite i hoʻohana ʻia i nā huahana pae ea e hoʻokō ai i ka pololei kiʻekiʻe. ʻO ke kaʻina hana hoʻopili e hoʻolilo i ka ʻili o ka granite i pālahalaha a laumania, e ʻae ana i kahi kiʻekiʻe o ka pololei geometric a me ka ana. ʻAʻohe mea like ka pololei a ka granite e hāʻawi ai i loko o ka metala, hiki ke hoʻopilikia ʻia e nā loli o ka mahana a me nā deformations mīkini-mea hana i ka hala ʻana o ka manawa.

4. Haʻahaʻa ka haʻalulu
Hilinaʻi nā huahana pae ea i nā ea ea e hoʻokō ai i ka neʻe ʻana me ka friction ʻole. ʻAe kēia i ka mana a me ka pololei i ke kau ʻana i nā mea. Me ke koina friction haʻahaʻa o ka granite i hoʻohālikelike ʻia me nā mea ʻē aʻe e like me ka metala, e like me ke kila a i ʻole ka alumini, hoʻemi ia i ka nui o ke komo ʻana a me ka haehae ʻana ma luna o kēia mau ʻāpana a hoʻopau i kekahi manawa kūpono o ka pitting ʻana o ka ʻili e alakaʻi hope ai i ka neʻe ʻana like ʻole.

I ka hopena, he koho maikaʻi loa ka granite no nā huahana pae ea ma muli o kona kūpaʻa kiʻekiʻe, ka lōʻihi, ke kū'ē i ka pala, ka pololei kiʻekiʻe, a me ka haʻahaʻa o ka friction. ʻOiai he mea kūpono paha ka metala no nā ʻano hana like ʻole, ʻo ka pololei kiʻekiʻe a me ka hana lōʻihi a ka granite e hāʻawi ai e lilo ia i mea makemake nui ʻia no nā huahana pae ea.