Isingeniso ku-plywood.

I-Plywood iyinsimbi enezingqimba ezintathu noma enezingqimba eziningi efana nebhodi eyenziwe ngezingxenye zokhuni ezihlutshiwe zibe ama-veneers noma zisikwe okhunini oluncane, bese zinamathiselwa nge-adhesive.Ngokuvamile, kusetshenziswa ama-veneers anezinombolo ezingavamile, futhi kusetshenziswa izingqimba eziseduze ze-veneers.Izikhombisi-ndlela ze-fiber zinamathiselwe nge-perpendicular komunye nomunye.

I-Plywood ingenye yezinto ezivame ukusetshenziselwa ifenisha, futhi ingenye yamabhodi amathathu amakhulu amaphaneli asekelwe ngokhuni.Ingasetshenziselwa izindiza, imikhumbi, izitimela, izimoto, izakhiwo namabhokisi okupakisha.Iqembu lama-veneers ngokuvamile lihlanganiswa futhi lihlanganiswe ndawonye ngokuvumelana nesiqondiso sezinhlamvu zokhuni zezingqimba eziseduze perpendicular komunye nomunye.Ngokuvamile, ibhodi elingaphezulu kanye nebhodi lesendlalelo sangaphakathi zihlelwe ngokulinganayo ezinhlangothini zombili zesendlalelo esimaphakathi noma umgogodla.I-slab eyenziwe nge-veneer ngemuva kwe-gluing i-criss-crossed ngokusho kwesiqondiso sokusanhlamvu kwezinkuni, futhi icindezelwe ngaphansi kwezimo zokushisa noma ezingashisi.Inani lezendlalelo ngokuvamile liyinombolo eyinqaba, kanti ezimbalwa zinezinombolo ezilinganayo.Umehluko wezakhiwo ezingokoqobo neziwumshini eziqondisweni eziqondile nezivundlile mncane.Izinhlobo ezivame ukusetshenziswa ze-plywood ziyi-3-ply board, i-five-ply board nokunye.I-Plywood ingathuthukisa ukusetshenziswa kwezinkuni futhi iyindlela enkulu yokonga izinkuni.

Ukuze kuthuthukiswe izakhiwo ze-anisotropic zokhuni lwemvelo ngangokunokwenzeka, ukuze izakhiwo ze-plywood zifane futhi ukuma kuzinzile, isakhiwo se-plywood evamile kufanele sihambisane nezimiso ezimbili eziyisisekelo: eyodwa i-symmetry;enye iwukuthi imicu yezingqimba eziseduze ze-veneer i-perpendicular komunye nomunye.Umgomo wokulinganisa ukudinga ukuthi ama-veneers ezinhlangothini zombili zendiza emaphakathi yeplywood kufanele afane komunye nomunye kungakhathaliseki ukuthi izinkuni zinjani, ubukhulu be-veneer, inani lezendlalelo, isiqondiso sokhuni. imicu, kanye nomswakama.Ku-plywood efanayo, ama-veneers ohlobo olulodwa nogqinsi angasetshenziswa, noma ama-veneers ezinhlobo ezahlukene nokuqina angasetshenziswa;Nokho, noma yiziphi izingqimba ezimbili ze-veneers ezilinganayo komunye nomunye ezinhlangothini zombili zendiza ephakathi nendawo kufanele zibe nohlobo olufanayo nokuqina.Amaphaneli obuso nangemuva awavunyelwe ukuba abe uhlobo olulodwa lwesihlahla.

Ukwenza isakhiwo se-plywood sihlangabezane nezimiso ezimbili eziyisisekelo ezingenhla ngesikhathi esifanayo, inani layo lezendlalelo kufanele libe yinqaba.Ngakho-ke, i-plywood ngokuvamile yenziwa izendlalelo ezinezinombolo ezingavamile njengezingqimba ezintathu, izendlalelo ezinhlanu, nezingqimba eziyisikhombisa.Amagama ongqimba ngalunye lwe-plywood yilawa: i-surface veneer ibizwa ngokuthi i-surface board, i-veneer yangaphakathi ibizwa ngokuthi ibhodi eliyinhloko;ibhodi langaphambili libizwa ngokuthi iphaneli, futhi ibhodi elingemuva libizwa ngokuthi ibhodi elingemuva;ebhodini eliwumgogodla, isiqondiso se-fiber sihambisana nebhodi Ibizwa ngokuthi ibhodi elide eliyinhloko noma ibhodi eliphakathi.Lapho wenza ama-cavity deck slabs, amaphaneli angaphambili nangemuva kufanele abhekane ngokuqinile ngaphandle.