He ʻano papa lāʻau i hana ʻia e ke kanaka i hui hou ʻia ma ka ʻili ʻana.
Hana ʻia ka Plywood ma ka ʻokiʻoki ʻana i nā veneers nui i ke kuhikuhi o nā apo makahiki. Ma hope o ka maloʻo ʻana a me ka hoʻopaʻa ʻana, hana ʻia e like me ke ʻano o ka orientation grain mahogany vertical o nā veneers pili.
ʻO ka helu o nā papa kumu maʻamau he helu ʻokoʻa o nā papa, maʻamau ʻekolu a i ʻumikumamākolu papa, a ʻo ka helu maʻamau o nā papa he ʻekolu papa, ʻelima papa, ʻeiwa papa, a me 13 papa (kapa ʻia ka mākeke kūʻai ʻekolu plywood, ʻelima. plywood, nine plywood, umikumakolu centimeters). Kapa ʻia ka ʻaoʻao mua o ka ʻaoʻao o waho ka ʻaoʻao mua, ʻo ke kua i kapa ʻia ʻo ka ʻaoʻao hope, a ʻo ka ʻaoʻao o loko i kapa ʻia ʻo ka papa kumu.
Loaʻa i ka type 1 plywood nā mea maikaʻi o ka pale ʻana i ka wā, ke kū ʻana o ka wai paila, ka lōʻihi, ke kūpaʻa wela kiʻekiʻe, a me ke kūpaʻa mahu.
ʻO kēia mau ʻano ʻelua o ka plywood he plywood waiʻole, hiki ke hoʻoinu ʻia i ka wai anuanu a me ka wai wela i ka manawa pōkole.
ʻO ke ʻano 3 plywood he plywood wai, hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu no kahi manawa pōkole, kahi kūpono no ka mahana o loko o ka lumi. Nā lako a me nā kumu hana maʻamau;
ʻO ka ʻano 4 plywood he lāʻau paʻa-kū ʻole i ka wai, kahi i hoʻohana mau ʻia i loko o ka hale. ʻO ka lāʻau lapaʻau maʻamau ka birch, eucalyptus, a me ka poplar.
Hoʻohana nui ʻia ka Plywood i nā kūlana o waho, e like me ke kūkulu ʻana i nā mea hoʻonaninani o waho a me ka formwork concrete. I ka hoʻonaninani, hoʻohana nui ʻia ia i nā kaupaku, nā pā pā, a me nā liner papahele.
ʻO ke ʻano kumu o ka plywood
I mea e hoʻomaikaʻi ai i ka anisotropy o ka lāʻau maoli e like me ka hiki, loaʻa nā ʻano like ʻole o ka plywood a me ke ʻano paʻa. ʻO ka mea maʻamau, pono e hahai ka lāʻau plywood i ʻelua mau kumu kumu i ka hoʻolālā: ʻo kekahi he symmetrical; ʻO ka mea ʻē aʻe, ʻo nā fiber optical papa hoʻokahi e kū pono ana kekahi i kekahi.
ʻO ke kumu o ka symmetry ʻo ia ka pono o ka plywood ma nā ʻaoʻao ʻelua o ke kikowaena waena o ka symmetry o ka lāʻau, me ka nānā ʻole i ke ʻano o ka lāʻau, ka mānoanoa o ka lāʻau, ka helu o nā papa, ke kuhikuhi o ka fiber, a me ka haʻahaʻa. pono e like ka maʻiʻo i kekahi i kekahi.
I loko o ka plywood hoʻokahi, hiki ke hoʻohana ʻia nā lāʻau hoʻokahi a me nā veneers o ka mānoanoa, a i ʻole nā veneers o nā ʻano lāʻau like ʻole a me nā mānoanoa; akā naʻe, ʻo nā ʻāpana ʻelua o nā lāʻau veneer like like a like me ka mānoanoa ma nā ʻaoʻao ʻelua o ka mokulele waena hoʻohālike like.
No ka hoʻokō ʻana i ke ʻano o ka plywood i nā kumu kumu ʻelua ma luna, he mea ʻē ka helu o nā papa.
No laila, hoʻokaʻawale ʻia ka plywood i ʻekolu papa, ʻelima papa, ʻehiku papa a me nā papa ʻē aʻe.
ʻO ka inoa o ka papa lāʻau: ua kapa ʻia ka ʻili o ka ʻili i ka papaʻaina, ʻo ka ʻili o loko i kapa ʻia ʻo ka papa kumu; kapa ʻia ka ʻaoʻao mua he panel, a ʻo ka ʻaoʻao hope i kapa ʻia ʻo ka panel hope; i ka papa kumu, ua like ke kuhikuhi o ka fiber me ka panel.
Kapa ʻia ʻo ia ka papa kumu lōʻihi a i ʻole ka papa waena.
ʻO nā mea maikaʻi o ka plywood
ʻO nā mea maikaʻi o ka plywood ʻo ia ka hiki ke haʻi ikaika, ʻaʻole maʻalahi e hoʻoheheʻe ʻia a piʻo, ʻaʻole maʻalahi e haki, a me ka hoʻonui liʻiliʻi. Hiki i ka papa multilayer ke hoʻololi i ka mahana o loko a me ka haʻahaʻa. ʻO ka papa honua o ka papa multilayer he lāʻau maoli. ʻOi aku ka pili o ka lāʻau i ke ʻano a nui ke ʻano. ʻO nā mea maikaʻi o nā papa multi-layer he maʻalahi ke paʻi. Ke hoʻohālikelike ʻia me ka lāʻau paʻa lāʻau, pale ka papa multi-layer i kekahi mau hemahema maoli o ka lāʻau maoli, e like me ka stuttering, laula, deformation, a me ke kūpaʻa ʻino ʻana.
ʻOi aku ka maikaʻi o nā papa multilayer ma mua o ka lāʻau maoli ma ke kumukūʻai. Ma muli o ka nānā hou ʻana a me ka hoʻonohonoho hou ʻana o nā papa papa nui, ʻoi aku ka maikaʻi ma mua o nā papa lāʻau paʻa.
Nā hemahema o ka papa multilayer
Hana ʻia ka papa multi-layer me ka papa kumu lāʻau maoli ma o ke kiʻekiʻe kiʻekiʻe a me ke kaomi kiʻekiʻe i ke kaomi wela me kahi mea hoʻopili. No laila, e pili ana i ka mālama ʻana i ke kaiapuni, e hoʻokuʻu ʻia kekahi formaldehyde. Akā ʻo ia ka mea kokoke loa i ka lāʻau maoli a ʻo ia hoʻi ka papa hana kūlohelohe maikaʻi loa.
ʻO ka ʻike ʻana i ka lāʻau lapaʻau maikaʻi a maikaʻi ʻole paha
ʻO ka mua, e nānā i ka palahalaha o ka papa. Mai kēia wahi, hiki iā mākou ke ʻike i nā mea o loko o ka papa. Ke nānā mākou i kahi papa, hiki iā mākou ke hoʻopā iā ia me ko mākou mau lima a manaʻo inā he like ʻole. Inā loa'a, 'o ia ho'i, 'a'ole maika'i ke one.
ʻO ia hoʻi, ʻaʻole maikaʻi ka mea papa kumu a ua haki ka mea. I ka pōkole, ʻaʻole ia e ʻōlelo ʻia e kūʻai i ka uneven.
ʻO ka lua, e nānā i ke ʻano o ka hierarchy o ka papa multilayer. ʻO ka mānoanoa o ka papa, ʻoi aku ka maʻalahi o ka ʻike ʻana i ka waiho ʻana o ka papa multi-layer. Inā hana ʻia kēlā me kēia papa i nā mea monolithic, e akaka loa nā papa a ʻaʻohe mea ʻano cross-layer. Inā maikaʻi ʻole ka mea, nui nā ʻōpala.
Ma muli o ka hopena o ke kaomi, e ʻoi aku ka maikaʻi o ka pae ma hope o ka ʻomi ʻana i kekahi i kekahi.
Ka manawa hoʻouna: Dec-02-2020