Cov txheej txheem plywood yog cov khoom siv engineering tsim los ntawm kev sib koom ua ke ntau txheej ntawm veneer lossis ntoo ua ke nrog cov nplaum thiab cua sov}} Nias nias. Nws cov tub ntxhais ua haujlwm ua haujlwm yog raws cov nyhuv synergistic ntawm cov qauv dab neeg thiab cov nplaum kom haum thaum tswj lub ntuj zoo nkauj ntawm ntoo.
Txheej txheem, plywood yog ua los ntawm tus lej khib ntawm veneer txheej txuas hauv cov qauv staggered, nrog cov fibers ntawm cov txheej txheem nyob ib sab. Qhov kev tsim kho no lamination yog qhov tseem ceeb rau cov txheej txheem txheej txheem plewood Piv txwv li, nyob rau hauv cov khoov loads, cov npoo venegers muab lub zog tensile, thaum cov nruab nrab kev faib cov teeb meem kev ntxhov siab thiab ua rau muaj kev cuam tshuam zoo nkauj ototropic cov khoom siv.
Adhesives ua li "molecular txuas" hauv cov qauv plywood. Kev lag luam niaj hnub nquag siv Phenolic Resin (PF), urea {1} {{{{hloov cov nplaum. Cov polymers rau cov pores ntawm cov veneer thaum lub sijhawm nias kub, ua ib qho kev sib txuas lus kub, ua kom muaj zog cellulose. Piv txwv li, cov nplaum phenolic, tom qab kho tau kub ntawm 120}}}}}}-tev muaj kev cuam tshuam nrog peb zaug ntawm ntoo.
Cov Txheej Txheem Plywood txoj kev zoo tau cuam tshuam hauv ntau daim ntaub ntawv thov. Hauv kev tsim kho, nws feem ntau siv los ua cov ntoo hauv pem teb, phab ntsa chav, muaj peev xwm nrog nrog nrog kev ntxhov siab ib puag ncig. Nyob rau hauv kev thauj mus los, nws lub teeb meem zoo kawg nkaus thiab lub zog muaj zog ua rau nws txoj kev xaiv zoo tshaj plaws rau cov qauv tsheb thiab nkoj hull cov qauv. Los ntawm kev kho cov Veneure Thickness thiab tus naj npawb ntawm plies, cov khoom lag luam nrog sib txawv elastic moduli tuaj yeem tsim kho kom tau lees paub txog kev tsim nyog engineering.
Nws yog tsim nyog sau cia tias kev ua tau zoo ntawm cov txheej txheem plywood yog qhov sib txuam ntawm cov txheej txheem ntawm kev tsim cov txheej txheem ntawm kev tsim hluav taws xob kub thiab lub sijhawm. Nrog rau daim ntawv thov ntawm ib puag ncig tus phooj ywg syy- Cov qauv txheej txheem thev naus laus zis thiab kev ua kom ntev dua, txuas ntxiv mus rau hauv kev ua haujlwm siab sib xyaw.
