Puas yog LVL muaj zog dua plywood?

Raws li cov lus qhia zoo ib yam (thickness, naj npawb ntawm cov txheej, cov khoom muaj pes tsawg leeg),LVL(Laminated veneer Lumber)Ua kom pom qhov zoo tshaj plaws ntawm cov qauv kev ntseeg siab (lub zog, nruj, deformation kuj) piv rau cov qauv plywood. Qhov kev sib txawv ntawm qhov tseem ceeb no tshwm sim los ntawm qhov sib txawv hauv cov txheej txheem tsim khoom thiab cov qauv tsim, uas kuj ua rau LVL haum rau kev thauj khoom ntau dua -cov kabmob kev tsim kho thiab kev txhawb nqa.
Core Distinction: Cov txheej txheem txiav txim siab tus qauv, tus qauv txiav txim siab muaj zog
1. LVL (Laminated Veneer Lumber): Directional Laminating Achieves "Unidirectional Optimization"
LVL ntau lawm suav nrog gluing thiab nias rotary - txiav veneers nyob rau hauv ib tug unidirectional qauv tom qab sib sau ua ke raws li cov nplej. Tag nrho cov veneers qhia zoo tib yam ntoo grain orientation.
Load-cov kabmob logic: Loads raug xa mus raws li kev coj noj coj ua, ua kom cov ntoo lub tensile, compressive, thiab flexural lub zog nyob rau hauv cov kev taw qhia grain. Tsis muaj zog transverse grain txheej.
Cov yam ntxwv ntawm kev ua tau zoo: Lub zog Flexural, modulus ntawm elasticity (qhib tawv), thiab shear lub zog yog siab dua li plywood. Cov khoom siv tsis sib xws, tsis muaj qhov tsis zoo ntawm cov ntoo zoo li cov pob qij txha thiab cov kab nrib pleb, nthuav tawm tsawg kawg deformation nyob rau hauv kev thauj khoom, thiab muaj qhov tshwj xeeb thauj khoom - bearing stability.
2. Plywood: Hla -laminated tsim ua tiav "bidirectional balanced performance"
Plywood yog tsim los ntawm kev sib koom ua ke veneers nrog cov khaubncaws sab nraud povtseg oriented perpendicular (90℃crosswise) rau ib leeg. Lub hom phiaj tseem ceeb yog txhawm rau tiv thaiv ntoo anisotropy thiab txo qis warping deformation.
Cov qauv logic: Cov txheej txheem sib hloov ua rau lub zog tag nrho tsis muaj zog -ntoo lub zog tensile tsuas yog 1/10 txog 1/20 ntawm nws cov longitudinal zog. Hla -lamination txwv lub vaj huam sib luag txoj kev khoov thiab compressive muaj peev xwm vim cov txheej txheem transverse.
Cov yam ntxwv ua tau zoo: Kev ruaj ntseg zoo heev (tiv taus rau warping thiab cracking), tab sis load- bearing muaj peev xwm thiab deformation kuj nyob deb inferior rau LVL. Tsim nyog tsuas yog rau cov uas tsis yog- thauj khoom- cov ntawv thov xws li cov vaj huam sib luag zoo nkauj, subflooring, thiab ntim khoom.