Kev faib tawm thiab cov yam ntxwv tsom xam ntawm Plywood

Vim nws cov txheej txheem tsim tau yooj yim thiab kev ua haujlwm tau zoo, plywood tau tsim muaj kev faib tawm nplua nuj. Nws tuaj yeem raug cais raws li ntau qhov ntev xws li cov khoom siv ntoo ntoo, cov qauv tsim, kev sib txuas ua haujlwm, thiab kev npaj siv, kom tau raws li qhov sib txawv ntawm cov kev xav tau sib txawv.
Raws li cov khoom siv ntoo, nws tuaj yeem muab faib ua hardwood plywood thiab softwood plywood. Hardwood veneers muaj kev ntxhib los mos thiab lub zog siab, thiab feem ntau siv rau hauv rooj tog thiab kho kom zoo nkauj; softwood veneers muaj cov nplej ncaj thiab tsis tshua muaj nqi, thiab feem ntau yog siv hauv kev tsim kho thiab ntim khoom, qhov twg ob qho tib si lub zog thiab kev lag luam tseem ceeb. Kuj tseem muaj cov ntoo sib xyaw, uas ua tiav kev ua tau zoo los ntawm kev sib xyaw ntawm cov ntoo sib txawv, sib npaug ntawm ob qho tib si thiab cov khoom siv kho tshuab.
Raws li cov qauv tsim, nws tuaj yeem muab faib ua cov plywood zoo tib yam thiab cov qauv tshwj xeeb plywood. Ordinary plywood feem ntau muaj cov khaubncaws sab nraud povtseg nyob rau hauv ib qho orthogonal laminated qauv, thiab cov khaubncaws sab nraud povtseg feem ntau yog khib los xyuas kom meej symmetrical stability; cov qauv tshwj xeeb muaj xws li sandwich panels thiab gradient qauv panels. Sandwich panels ntxiv cov ntaub ntawv tuab hauv nruab nrab txheej txhawm rau txhim kho thermal rwb thaiv tsev lossis suab rwb thaiv tsev, thaum cov txheej txheem gradient kho cov veneer ntom lossis tuab hauv cov thickness kev taw qhia kom ua tiav kev sib xyaw ua ke ntawm rigidity thiab saj zawg zog hauv cov chaw tshwj xeeb.
Raws li kev sib raug zoo thiab kev ua haujlwm ntev, nws tuaj yeem raug cais los ntawm qib dej tsis kam. Raws li lub teb chaws tus qauv, nws tau muab faib ua Class I (weather-resistant, boiling water-}resistant), Class II (dej-}resistant), Class III (moisture-}resistant), thiab Class IV (tsis ya raws-}resistant) raws li kev sib khi lub zog thiab dej thiab kub ua hauj, sib xws rau cov qauv sab nraum zoov, ntub dej ib ntus, thiab siv nyob rau hauv ib ntus. Kev ua tau zoo ib puag ncig kuj yog cov txheej txheem kev faib tawm, thiab qis -formaldehyde emission cov khoom tau dhau los ua qhov kev xaiv tseem ceeb rau kev siv sab hauv tsev.
Raws li kev siv, nws kuj tseem tuaj yeem muab faib ua pawg tshwj xeeb xws li kev tsim kho, rooj tog zaum, ntim khoom, thiab kev siv tsheb thiab nkoj. Txhua pawg muaj cov qauv tsim tshwj xeeb ntawm cov tuab, lub zog, thiab qhov zoo ntawm qhov chaw. Piv txwv li, plywood rau tsheb thiab nkoj hais txog ntsev tsuag tshuaj tiv thaiv thiab poob siab tsis kam, thaum ntim plywood tsom rau kev tiv thaiv thiab ya raws.
Cov txheej txheem sib txawv ua rau cov plywood kom raug raws li cov kev cai thiab kev lag luam ntawm cov kev lag luam sib txawv, ua kom muaj kev ua haujlwm zoo thaum nthuav dav dav thiab qhov tob ntawm cov ntaub ntawv siv.