Me whai whakaaro ki ngā āhuatanga mai i te āhua me ngā rahi o te wāhanga e mīhinihia ana ki te rauemi o te mea mahi ina whiriwhiria ana te mea tika.mīhini miramō te mahi miihini.
He mea noa te huri mata me te taputapu tapahi pakihiwi 90° i roto i ngā whare mīhini. I ētahi wā, he tika tēnei kōwhiringa. Mena he āhua koretake te mea e hurihia ana, he rerekē rānei te hohonu o te tapahi nā te mata o te mea whakarewa, ko te mira pakihiwi te kōwhiringa pai rawa atu. Engari i ētahi atu wā, he pai ake pea te whiriwhiri i te mira mata paerewa 45°.
Ina iti iho i te 90° te koki totohu o te taputapu mira, ka iti ake te matotoru o te maramara tuaka i te tere whāngai o te taputapu mira nā te mea ka angiangi ngā maramara, ā, ka nui te awe o te koki totohu o te taputapu mira ki te whāngai e tika ana mō ia niho. I roto i te mira mata, ka angiangi ake ngā maramara i te mira mata he koki totohu 45°. I te hekenga o te koki totohu, ka iti iho te matotoru o te maramara i te whāngai mō ia niho, ā, ka piki ake te tere whāngai mā te 1.4 ngā wā. I tēnei take, ki te whakamahia he mira mata he koki totohu 90°, ka heke te hua mā te 40% nā te mea kāore e taea te whakatutuki i te pānga angiangi o te maramara tuaka o te mira mata 45°.
Ko tētahi atu āhuatanga nui o te whiriwhiri i tētahi mīhini mira ka warewarehia e ngā kaiwhakamahi - ko te rahi o te mīhini mira. He maha ngā toa e whakamahi ana i ngā mīhini mira iti ake te diameter, ā, he nui te wāhi hei whakapiki i te hua. Ko te mea pai, me 70% o te mata tapahi e whakamahia ana mō te mīhini mira. Hei tauira, i te wā e mira ana i ngā mata maha o tētahi wāhanga nui, ko te mira mata he 50mm te diameter ka 35mm noa iho te tapahi, ka whakaiti i te hua. Ka taea te penapena i te wā miihini nui mēnā ka whakamahia he mīhini mira nui ake te diameter.
Ko tētahi atu huarahi hei whakapai ake i ngā mahi mira ko te arotau i te rautaki mira o ngā mira mata. I te wā e whakarite ana i te mira mata, me whakaaro tuatahi te kaiwhakamahi ki te āhua o te ruku o te taputapu ki roto i te mea mahi. He maha ngā wā, ka tapahia tika e ngā kaitapahi mira ki roto i te mea mahi. He maha ngā wā ka haere tahi tēnei momo tapahi me te nui o te haruru pānga, nā te mea ina puta te whakauru i te tapahi, ko te maramara i hangaia e te kaitapahi mira te mea matotoru rawa. Ko te kaha o te pānga o te whakauru ki te rauemi o te mea mahi ka puta te wiri me te hanga i ngā ahotea kume e whakapoto ana i te roa o te ora o te taputapu.
Wā tuku: Mei-12-2022
