ʻO ka hoʻokomo ʻana i ka papa strand oriented

ʻO ka hoʻokomo ʻana i ka papa strand oriented

Papa strand oriented

ʻO ka oriented strand board (OSB) kahi ʻano lāʻau i hana ʻia e like me ka particle board, i hana ʻia me ka hoʻohui ʻana i nā mea hoʻopili a laila kaomi i nā papa o nā kaula lāʻau (flakes) i nā kuhikuhi kikoʻī.Ua haku ʻia e Armin Elmendorf ma Kaleponi i ka makahiki 1963.[1]He ʻeleʻele a ʻano ʻokoʻa paha ka OSB me nā ʻāpana pākahi ma kahi o 2.5 cm × 15 cm (1.0 me 5.9 ʻīniha), e moe like ʻole ana kekahi i kekahi, a ua hana ʻia ma nā ʻano like ʻole a me nā mānoanoa.

Hoʻohana
ʻO ka OSB kahi mea me nā waiwai mechanical maikaʻi e kūpono loa ia no nā noi haʻahaʻa i ke kūkulu ʻana.[2]I kēia manawa ua ʻoi aku ka kaulana ma mua o ka lāʻau plywood, e kauoha ana i ka 66% o ka mākeke panel kūkulu ʻAmelika ʻAmelika.[3]ʻO nā mea hoʻohana maʻamau e like me ka sheathing ma nā paia, ka papahele, a me ka hoʻopā hale.No ka hoʻohana ʻana i ka pā o waho, loaʻa nā panela me kahi ʻāpana radiant-barrier laminated i kekahi ʻaoʻao;ʻoluʻolu kēia i ka hoʻokomo ʻana a hoʻonui i ka hana ikehu o ka envelop hale.Hoʻohana ʻia ʻo OSB i ka hana hale.

Mea hana
Hana ʻia ka papa oriented strand i nā moena ākea mai nā ʻāpana ʻaoʻao o nā ʻāpana lāʻau lahilahi i hoʻopaʻa ʻia a hoʻopaʻa ʻia me ka wax a me nā mea hoʻopili resin synthetic.

ʻO nā ʻano resins adhesive i hoʻohana ʻia: urea-formaldehyde (OSB type 1, nonstructural, nonwaterproof);ʻO ke kāpili isocyanate-based (a i ʻole PMDI poly-methylene diphenyl diisocyanate based) ma nā wahi i loko me ka melamine-urea-formaldehyde a i ʻole phenol formaldehyde resin glues ma ka ʻili (OSB type 2, structural, water resistant on face);phenol formaldehyde resin a puni (OSB type 3 a me 4, structural, no ka hoʻohana ʻana i nā kaiapuni wai a me waho).[4]

Hana ʻia nā papa ma ka ʻoki ʻana i ka lāʻau i mau ʻāpana, i kānana ʻia a laila hoʻonohonoho ʻia ma ke kāʻei a i ʻole nā ​​kaula uea.Hana ʻia ka moena ma kahi laina hana.Hoʻopili ʻia nā ʻāpana lāʻau ma nā ʻaoʻao o waho i ke koʻi ikaika o ka panel, a ʻo nā papa o loko e kū pololei.Hoʻoholo ʻia ka helu o nā papa i hoʻopaʻa ʻia e ka mānoanoa o ka panel, akā ua kaupalena ʻia e nā mea hana i hoʻokomo ʻia ma ke kahua hana.Hiki ke ʻokoʻa ka mānoanoa o kēlā me kēia papa e hāʻawi i nā mānoanoa o ka panel i hoʻopau ʻia (ma ka maʻamau, ʻo kahi papa he 15 knm (5.9 in) e hoʻopuka i ka mānoanoa panel 15 mm (0.59 in).Hoʻokomo ʻia ka moena i loko o kahi paʻi wela e hoʻopaʻa i nā flakes a hoʻopaʻa iā lākou ma o ka hoʻōla ʻana i ka wela a me ka hoʻōla ʻana i ka resin i uhi ʻia ma nā flakes.A laila ʻoki ʻia kēlā me kēia panela mai nā moena i nā nui i hoʻopau ʻia.Hana ʻia ka hapa nui o ka OSB o ka honua ma ʻAmelika Hui Pū ʻIa a me Kanada i nā hale hana nui.

Nā huahana pili
Ua hoʻohana ʻia nā mea ʻē aʻe ma waho o ka lāʻau e hana i nā huahana like me OSB.ʻO ka papa mauʻu i hoʻonohonoho ʻia he papa ʻenekinia i hana ʻia ma ka ʻoki ʻana i ka mauʻu a hana ʻia me ka hoʻohui ʻana i nā mea hoʻopili P-MDI a laila hoʻoemi wela i nā papa mauʻu ma nā ʻano kikoʻī.[5]Hiki ke hana ʻia ka papa strand mai ka bagasse.

Hana ʻia
I ka makahiki 2005, he 10,500,000 m2 (113,000,000 sq ft) (3⁄8 i loko a i ʻole 9.53 mm kumu) o ka 8,780,000 m2 (94,500,000 sq ft) (3⁄8 i loko a i ʻole 9.53 mm paha) o ka 8,780,000 m2 (94,500,000 sq ft) (3⁄8 i loko a i ʻole 9. .[6]I ka makahiki 2014, ua lilo ʻo Romania i ʻāina hoʻoili OSB nui loa ma ʻEulopa, me 28% o nā mea hoʻoili e hele ana i Russia a me 16% i Ukraine.

Waiwai
Hiki i nā hoʻololi i ke kaʻina hana ke hoʻopili i ka mānoanoa, ka nui o ka panel, ka ikaika, a me ka rigidity.ʻAʻohe o nā panina OSB i nā āwaha o loko a i ʻole nā ​​​​waha, a hiki ke kūpaʻa i ka wai, ʻoiai makemake lākou i nā membrane hou e loaʻa ai ka impermeability i ka wai a ʻaʻole ʻōlelo ʻia no ka hoʻohana ʻana i waho.ʻO ka huahana i hoʻopau ʻia he mau ʻano like me ka lāʻau plywood, akā he ʻano like a ʻoi aku ka maʻalahi.[8]Ke hoʻāʻo ʻia i ka hāʻule ʻole, ʻoi aku ka nui o ka hiki ʻana o ka OSB ma mua o nā panela lāʻau wili.[9]Ua hoʻololi ʻo ia i ka plywood i nā wahi he nui, ʻoi aku ka nui o ka mākeke panel kūkulu ʻAmelika ʻAmelika.

ʻOiai ʻaʻohe hua mau o OSB e like me ka lāʻau maoli, loaʻa iā ia kahi axis e ʻoi aku ka ikaika.Hiki ke ʻike ʻia kēia ma ka nānā ʻana i ke kau ʻana o nā ʻāpana lāʻau ili.

Hiki ke ʻoki ʻia a hoʻokomo ʻia me nā ʻano mea hana like me ka lāʻau paʻa.

ʻO ke olakino a me ka palekana
ʻO nā resins i hoʻohana ʻia no ka hana ʻana i ka OSB ua hāpai i nā nīnau e pili ana i ka hiki o OSB ke hoʻokuʻu i nā mea hoʻohuihui kūlohelohe e like me formaldehyde.ʻOi aku ka ʻona o ka Urea-formaldehyde a pono e pale ʻia i ka hoʻohana ʻana i ka home.Manaʻo ʻia nā huahana Phenol-formaldehyde he mea pōʻino ʻole.ʻO kekahi mau ʻano hou o ka OSB, i kapa ʻia ʻo "new-generation" OSB panels, hoʻohana i nā resins isocyanate i loaʻa ʻole formaldehyde a manaʻo ʻia he nonvolatile ke hoʻōla ʻia.[10]Ke ʻōlelo nei nā pūʻulu kālepa ʻoihana ʻo ka hoʻokuʻu ʻana o ka formaldehyde mai ʻAmelika ʻAmelika OSB he "mea ʻole a ʻaʻole i loaʻa".[11]

Hoʻohana kekahi mau mea hana i nā ʻāpana lāʻau me nā pūhui borate like ʻole i mea ʻawaʻawa i nā nūnū, nā pīkī lāʻau, nā ʻōpala, a me nā haʻani, akā ʻaʻole nā ​​mea momona i nā ʻano hoʻohana.

Nā ʻano
ʻElima mau māka o OSB i wehewehe ʻia ma EN 300 e pili ana i kā lākou hana mechanical a me ke kūpaʻa pili i ka makū:[2]

OSB/0 - ʻAʻohe formaldehyde i hoʻohui ʻia
OSB/1 - Nā papa a me nā papa no nā pono o loko (me nā lako hale) no ka hoʻohana ʻana i nā kūlana maloʻo.
OSB/2 – Nā papa haʻawe no ka hoʻohana ʻana i nā kūlana maloʻo
OSB/3 – Nā papa haʻahaʻa no ka hoʻohana ʻana i nā kūlana haʻahaʻa
OSB/4 - Nā papa haʻahaʻa haʻahaʻa kaumaha no ka hoʻohana ʻana i nā kūlana haʻahaʻa