ʻO nā papa lāʻau paʻa, kekahi o nā mea maʻamau i hoʻohana ʻia i ka hana ʻana i nā lako a me nā mea hoʻonaninani hale, loaʻa nā waiwai kino a me ka waiwai aesthetic ma muli o ko lākou ʻano ʻano like ʻole. Hāʻawi kēia waiwai kūlohelohe i nā pōmaikaʻi nui i ka ikaika, kūpaʻa, a me ke aloha kaiapuni.
Mai kahi hiʻohiʻona liʻiliʻi, ua haku ʻia nā papa lāʻau paʻa i nā ʻāpana tubular he nui, e hana a hoʻonohonoho maoli i ka wā o ka ulu ʻana o ka lāʻau. ʻO nā pūnaewele vascular i hoʻonohonoho lōʻihi ʻia ke kuleana no ka lawe ʻana i ka wai, ʻoiai ʻo nā lālā lāʻau i hāʻawi ʻia me ka transversely hāʻawi i ke kākoʻo kumu mua. Hōʻike kēia hoʻonohonoho pūnaewele anisotropic i ke kumu e hōʻike ai nā papa lāʻau paʻa i nā ʻano like ʻole o nā waiwai kino ma ka ʻai-he ʻumi mau manawa o ka ikaika uʻi ma ka palaoa ma mua o ka ʻai. ʻO ka microscopically, hōʻike ka lāʻau coniferous i kahi ʻano like ʻole a me ka hoʻonohonoho maʻamau o ke kelepona, ʻoiai ʻo ka lāʻau paʻakikī e hōʻike ana i kahi hoʻohele vascular paʻakikī a me ke ʻano o ke apo ulu. Hoʻopili pololei kēia mau ʻokoʻa microscopic i ka hana hope loa o nā papa lāʻau paʻa mai nā ʻano lāʻau like ʻole.
Hōʻike mua ʻia nā hiʻohiʻona macroscopic o nā papa lāʻau paʻa i nā ʻiʻo maʻamau e like me ke apo ulu, pith, a me ka sapwood. ʻO nā apo ulu nā apo concentric i hana ʻia i ka wā o ka pōʻaiapuni o ka ulu makahiki o ka lāʻau. ʻAʻole hoʻopaʻa wale ko lākou ʻano nui a me ka waihoʻoluʻu i ka makahiki o ka lāʻau akā pili pono pū kekahi i nā ʻano mechanical o ka lāʻau a me nā ʻano hana. ʻO ka mea maʻamau, hōʻike nā apo ulu aʻe a maikaʻi hoʻi i ke kiʻekiʻe a me ka ikaika, ʻoiai nā apo ulu ākea a me ka liʻiliʻi e hōʻike ana i kahi ulu ulu maikaʻi akā he mea palupalu. ʻO ka pith, aia i waenakonu o ke kumu, he ʻāpana ʻokoʻa i haku ʻia me nā pūnaewele mua loa. ʻOi aku ka maʻalahi o kēia ʻāpana o ka mea i ka deformation a me ka ikaika haʻahaʻa. He mea nui ka hoʻokaʻawale ʻana ma waena o ka sapwood a me ka heartwood. ʻOi aku ka māmā o ke kala a ʻoi aku ka nui o ka makū, e maʻalahi ai ka hana; ʻO ka heartwood, ma ka ʻaoʻao ʻē aʻe, loaʻa i nā extractives hou aku, ka hopena i kahi kala ʻeleʻele a ʻoi aku ka lōʻihi.
Ma ke ʻano o ka hana ʻana, ʻike nui ʻia ka paʻa o nā papa lāʻau paʻa e ke ʻano o ka ʻoki ʻia ʻana o nā lāʻau. ʻO ke ʻano wili liʻiliʻi maʻamau e hoʻohua mai i ka palaoa chevron maikaʻi akā ʻaʻohe paʻa paʻa, ʻoiai ʻo ke ʻano ʻala -hāhā e hana i kahi papa paʻa ʻoi aku ka pololei. ʻO ka hui lima -, he ʻenehana i hoʻohana ʻia i ka hana ʻana i ka papa lāʻau paʻa hou, e hoʻolōʻihi i ka lōʻihi ma o ka hoʻohui ʻana i nā ʻāpana lāʻau liʻiliʻi ma ko lākou mau wēlau, e mālama ana i nā ʻano paʻa o ka lāʻau me ka hoʻomaikaʻi ʻana i ke kūpaʻa ʻana. Hoʻopau maikaʻi ka ʻenehana lāʻau paʻa i hoʻopaʻa ʻia i ka deformation i hana ʻia e anisotropy ma o ka hui ʻana a me ke kaomi ʻana i nā ʻāpana he nui o nā panela lahilahi e kū pono ana i ka palaoa. Hiki i kēia hana hou ke hoʻohana i nā panela lāʻau paʻa i nā lako lako nui.
Hoʻoholo pololei nā ʻano hana o nā panela lāʻau paʻa i kā lākou hana. Hāʻawi ka -kiʻekiʻe kiʻekiʻe o ke kelepona paʻa i nā panela lāʻau paʻa i ka haʻawe haʻahaʻa maikaʻi loa-a ʻo nā panela lāʻau paʻa maloʻo maikaʻi e hōʻike ana i ke kūpaʻa o ka nui ma lalo o nā kūlana maʻamau. Eia nō naʻe, ʻo ka anisotropy maoli o ka lāʻau, ʻo ia hoʻi, ʻo ka hoʻohana pono ʻole ʻana a i ʻole nā hoʻololi kaiapuni hiki ke alakaʻi i nā pilikia e like me ka warping a me ka pohā. ʻO ka hoʻomaopopo ʻana i nā hiʻohiʻona o nā panela lāʻau paʻa hiki ke kōkua i ka koho ʻana i nā ʻano lāʻau a me nā ʻano hana. No ka laʻana, hiki ke hoʻohana ʻia ka lāʻau me ka ikaika kiʻekiʻe e pili ana i ka palaoa no nā ʻāpana amo -aʻo ka lāʻau me ka palaoa maikaʻi hiki ke hoʻohana ʻia no nā mea hoʻonaninani. ʻO nā ʻenehana hoʻololi lāʻau o kēia wā, e like me ka mālama ʻana i ka wela a me ka impregnation kemika, hoʻololi i ka microstructure o ka lāʻau e hoʻomaikaʻi ai i ka makū a me ka pale ʻana i nā pepeke.
Mai kahi hiʻohiʻona hoʻomohala hoʻomau, ʻo ke ʻano kūlohelohe o nā panela lāʻau paʻa e lilo ai lākou i mea hoʻokahi o nā mea hale pili i ke kaiapuni. Ma ke ʻano he kumu waiwai hou, hoʻopau ka lāʻau i ka carbon dioxide a hoʻokuʻu i ka oxygen i ka wā o kona ulu ʻana, a hiki i nā pores i loko o kāna ʻano kelepona ke hoʻoponopono i ka haʻahaʻa o loko. Me ka hoʻohana ʻana i nā ʻenehana hoʻomaloʻo kiʻekiʻe a me -corrosion ʻenehana, ua hoʻomaikaʻi maikaʻi ʻia ka paʻa o nā panela lāʻau paʻa hou, a hiki i ko lākou ola lawelawe ke hiki i nā makahiki. I ka wā e hiki mai ana, me ka noiʻi hohonu e pili ana i ka hoʻokumu ʻana o ke kelepona lāʻau, manaʻo ʻia mākou e hoʻomohala i nā panela lāʻau paʻa me ka hana ʻoi aku ka maikaʻi, hiki ke mālama i ko lākou nani kūlohelohe ʻoiai e hālāwai ana i nā koi like ʻole o ke ola hou.
