OSB (OrientedStrandBoard) wani nau'in itace ne da aka ƙera kwatankwacin allo, ta hanyar ƙara nau'ikan igiyoyin itace (flakes) a cikin takamaiman yanayin da ke samar da ɗaure sannan kuma a danne itacen.
Armin Elmendorf na California ne ya ƙirƙira shi a cikin 1963. OSB na iya samun m da bambance-bambancen farfajiya, tare da kowane tsiri kamar 2.5 cm x 15 cm (1.0 x 5.9 in) an sanya su daidai da juna, kuma cikin nau'ikan iri da kauri iri-iri.

Manufar OSB

OSB wani abu ne da ke da kyawawan kaddarorin inji, yana mai da shi musamman dacewa da aikace-aikacen ɗaukar nauyi a cikin gini.
Yanzu ya fi shahara fiye da plywood, yana lissafin kashi 66% na kasuwar tsarin tsarin. Abubuwan da aka fi amfani dasu sune kamar sheathing don bango, benaye da bene na rufin.
Don aikace-aikacen bango na waje, ana iya yin amfani da bangarori tare da shinge mai haske a gefe ɗaya; wannan yana sauƙaƙe shigarwa kuma yana inganta aikin makamashi na ambulan ginin. Hakanan ana amfani da OSB wajen samar da kayan daki.

Manufacturing na OSB Boards

Nau'o'in resins na manne da OSB ke amfani da su sun haɗa da: urea-formaldehyde (nau'in OSB 1, wanda ba na tsari ba, marar ruwa); adhesives na tushen isocyanate (ko PMDI polymethylene diphenyl diisocyanate-based) a cikin yankunan ciki tare da melamine-urea-formaldehyde ko phenol-formaldehyde Resin manne a saman (OSB nau'in 2, tsari, hana ruwa); resin phenolic (nau'in OSB 3 da 4, nau'in tsari, don yanayin rigar da waje).

Ana samar da yadudduka ta hanyar yayyanka itacen zuwa ɗigon da aka tace sannan kuma akan bel ko ragamar waya. Ana kera matattarar akan layin gyare-gyare. Gilashin katako na waje na waje suna daidaitawa tare da ƙarfin ƙarfin bangarori, yayin da ciki na ciki yana tsaye. Adadin yadudduka da aka sanya ya dogara da sashi akan kauri na panel, amma an iyakance shi ta kayan aikin da aka sanya a wurin masana'anta. Har ila yau kauri na kowane yadudduka na iya bambanta don samar da kauri daban-daban da aka gama (yawanci, Layer 15 cm (5.9 a) zai haifar da kauri na 15 mm (0.59 a)). Ana sanya tabarma a cikin latsa mai zafi don danne zanen gadon a ɗaure su ta hanyar kunna zafi da kuma warkar da resin da aka lulluɓe a kan zanen gado. Daga nan sai a yanke kowane fanni daga tabarma zuwa girman da ya gama. Yawancin OSB na duniya ana kera su ne a manyan wuraren samarwa a Amurka da Kanada.

Samfura masu dangantaka

An yi amfani da kayan da ba itace ba don samar da samfuran kama da OSB. Daidaitaccen tsarin bambaro jirgi shine allon injiniya wanda aka yi ta hanyar tsaga bambaro, ƙara manne P-MDI, da zafi da latsa bambaro a cikin takamaiman shugabanci. Hakanan za'a iya yin particleboard daga bagasse.

#OSB #OSB3 #PB #particleboard