ʻO nā rivets mua he mau kui liʻiliʻi i hana ʻia me ka lāʻau a i ʻole ka iwi. ʻO ke kino hoʻololi metala mua paha ke kūpuna o nā rivets a mākou i ʻike ai. ʻAʻohe kānalua he mau ʻano hana kahiko ia o ka hoʻopili metala i ʻike ʻia e ke kanaka, hiki ke hoʻi i ka hoʻohana mua ʻana o ka metala palupalu. No ka laʻana, i ka wā keleawe, ua hoʻopaʻa nā ʻAigupita a hoʻopaʻa i nā kino peʻahi lāʻau ʻeono o ka laina waho o ka huila slotted me nā rivets. Ma hope o ka hoʻolei kūleʻa ʻana o nā Helene i nā kiʻi nui me ke keleawe, ua hoʻopaʻa lākou i nā ʻāpana me nā rivets. I kēia manawa, nui aʻe nā ʻano hoʻomohala rivet, ʻo ia hoʻi no ka hoʻomohala ʻana i nā ʻoihana like ʻole.
ʻO "nā ʻāpana maʻamau kila kila" kahi manaʻo kikoʻī e uhi ana i nā huahana like ʻole. Hoʻohana pinepine ʻia nā ʻāpana maʻamau kila kila no ka hoʻopaʻa ʻana i nā ʻāpana mīkini pipiʻi ma muli o ko lākou nani, kūpaʻa, kūpaʻa ikaika i ka pala a me nā ʻano ʻē aʻe. Me ka holomua o ke kaiāulu, ua kau ʻia nā koi kiʻekiʻe no nā ʻāpana maʻamau kila kila. Pili pū nā ʻāpana maʻamau kila kila i nā wili kila kila, ʻo ia hoʻi nā wili maʻamau. ʻO nā kikoʻī, nā ana a me ka laulā hoʻomanawanui he mau kūlana aupuni.
Loaʻa i nā ʻāpana maʻamau kila kila kā lākou mau koi ponoʻī no nā mea hana. Hiki ke hana ʻia ka hapa nui o nā mea kila kila i nā uea kila a i ʻole nā kaola no ka hana ʻana i nā mea hoʻopaʻa, me ke kila kila austenitic, ke kila kila ferritic, ke kila kila martensitic a me ke kila kila paʻakikī. No laila he aha nā loina i ke koho ʻana i nā mea? ʻO ke koho ʻana o nā mea kila kila e noʻonoʻo nui ʻia mai nā ʻano aʻe:
1. Nā koi ma nā waiwai mechanical, ʻoi aku hoʻika ikaika o nā mea hoʻopaʻa;
2. Nā koi o nā kūlana hana make kūpaʻa ʻana i ka pala o nā mea;
3. Nā koi o ka mahana hana ma ke kūpaʻa wela (ikaika wela kiʻekiʻe, kūpaʻa oxidation) o nā mea;
4. Nā koi no ka hana hana mea e pili ana i ka ʻenehana hana;
5. Pono e noʻonoʻo ʻia nā kumu ʻē aʻe, e like me ke kaumaha, ke kumukūʻai a me ke kūʻai ʻana.
Ka manawa hoʻouna: Malaki-16-2023