nā pono kūikawā o ka lāʻau

ʻO ka mea mua, nā pono kūikawā o ka lāʻau

1, paʻakikī a paʻa ka lāʻau, no ka mea he māmā ka lāʻau a me ka ikaika kiʻekiʻe, ʻoi aku ka kiʻekiʻe o ka lākiō o ka ikaika a me ka nui o ka lāʻau ma mua o ka metala maʻamau.

2, ʻoi aku ka maikaʻi o ka hana ʻana i ka lāʻau, ma muli o ka māmā o ka mea lāʻau, palupalu, hiki ke hoʻohana ʻia nā mea hana maʻalahi i nā ʻano like ʻole o nā huahana. ʻO ka hana lāʻau e hoʻopau i ka ikehu liʻiliʻi a he mea mālama i ka ikehu.

3, ʻaʻole ʻeleʻele ka lāʻau, ʻaʻole maʻalahi ke ʻā.

4. ʻO ka lāʻau (lāʻau maloʻo) he nāwaliwali ka conductivity i ka wela a me ka uila, pane liʻiliʻi i ka hoʻololi ʻana i ka mahana, ikaika flammability, a ʻaʻohe mea koʻikoʻi o ka hoʻonui ʻana a me ka ʻoki ʻana. No laila, kūpono ka lāʻau no ka hoʻohana ʻana i ka insulation wela a me nā koi flammability uila o nā wahi kiʻekiʻe. Hiki i nā lako i hana ʻia i ka lāʻau ke hāʻawi i ke kanaka mehana i ka hoʻoilo a ʻoluʻolu i ka hōʻoluʻolu o ke kauwela.

5, ʻaʻole brittle ka overload o ka lāʻau i ka wā e haki ai, no laila e hoʻonui nā lako lāʻau i kahi palekana.

6. ʻOiai e wela ka lāʻau i ka wela kiʻekiʻe, ʻoi aku ka liʻiliʻi a ʻoi aku ka lohi o ka deformation o ka hale lāʻau nui ma mua o ke ʻano o ka hale metala, a hiki ke mālama i kekahi ikaika i ka wā e puhi ʻia ai a carbonized, ʻoiai e kolo a hāʻule koke ka hale metala ma muli o ke kiʻekiʻe wela.

7, waihoʻoluʻu lāʻau, hiʻohiʻona nani, i ka manawa like ma hope o ka hoʻopau ʻana e lilo i mea leʻaleʻa i ka maka, kūpono no ka hana ʻana i nā lako, nā pahu mea kani, nā mea hana a pēlā aku.

ʻElua, ka laha nui o ka lāʻau

Loaʻa nā mea maikaʻi, maʻamau e loaʻa nā hemahema, ʻoiai he nui nā hiʻohiʻona maikaʻi o ka lāʻau, akā ma muli o kekahi o kā lākou mau hiʻohiʻona ponoʻī, aia kekahi mau hemahema i hiki ʻole ke mālama ʻia. Ma lalo, e kamaʻilio mākou e pili ana i nā hemahema kikoʻī.

1, lāʻau he anisotropic heterogeneous mea, ʻo ia hoʻi, aia kekahi mau ʻokoʻa i ka hana o kēlā me kēia ʻāpana, hōʻike nui ʻia e like me ke ʻano o ke kino a me nā waiwai mechanical o nā ʻokoʻa. ʻO ka hoʻonui ʻole ʻia e hoʻonui i ka deformation o ka lāʻau, a ʻo ka ʻokoʻa o ka ikaika e maʻalahi ke alakaʻi i ka haki lāʻau.

2. He mea hygroscopic ka lāʻau, ʻo ia hoʻi, maʻalahi ka pulu. No laila, ma lalo o nā kūlana kūlohelohe e hiki mai ka wai ala, maloʻo shrinkage, pili i ka paʻa o ka nui o ke ʻano lāʻau, maʻalahi ka deformation.

3, ka laau he polymer organic polymer maoli, ka mea e hana ai i kekahi mau insects a me nā haʻiki (mold, wood rot bacteria) hiki ke parasitic, ʻo ia hoʻi, maʻalahi e huki i nā iniseti a me ka corrosion, no laila ke olakino lāʻau, ka luku ʻana i nā huahana lāʻau, ke kumu nui o ke kanaka, waiwai a me ke kālā.

4, ʻoi aku ka paʻakikī o ka hoʻomaloʻo lāʻau. Pono e hana ʻia nā huahana lāʻau mai ka lāʻau maloʻo. ʻO ka hoʻomaloʻo ʻana i ka lāʻau e hoʻopau i ka ikehu hou aʻe, a me ka nānā iki ʻana e hele mai ana ka warping, ka māwae a me nā hemahema ʻē aʻe, e lawe mai i nā poho pono ʻole.

5. Hiki ke ahi ka laau. Ma kahi e hoʻohana nui ʻia ai ka lāʻau, pono e hoʻoikaika ʻia nā hana pale ahi.