Plywood: Cov khoom siv tseem ceeb ntawm Kev Ua Haujlwm Niaj Hnub No

Raws li tus tswv cuab tseem ceeb ntawm tsev neeg ntoo engineered, plywood, nrog nws cov qauv kev ruaj ntseg thiab kev ua haujlwm zoo, tau dhau los ua ib qho ntawm cov khoom tseem ceeb hauv kev tsim kho, rooj tog zaum, ntim khoom, thiab lwm yam. Qhov tseem ceeb, nws yog tsim los ntawm laminating ntau txheej ntawm veneer nyob rau hauv ib tug ntoo khaub lig-grained qauv siv adhesives.Qhov txheej txheem no pab daws cov teeb meem ntawm tej yam ntuj tso ntoo, xws li deformation thiab tawg, muab cov khoom sib npaug ntawm lub cev.
Los ntawm txoj kev xav, qhov zoo ntawm plywood qia los ntawm kev tshawb fawb logic ntawm "interlayer cross-lamination." Lub symmetrical txheej txheem ntawm ib tug khib tus naj npawb ntawm veneer txheej tsim ib tug mechanically balanced system, tso cai rau cov panels kom muaj kev ruaj ntseg nyob rau hauv lub sij hawm hloov nyob rau hauv cov av; kev sib xyaw ua ke ntawm veneers los ntawm ntau hom ntoo tuaj yeem siv los ua kom zoo zog, tiv thaiv corrosion, lossis nplaim hluav taws. Piv txwv li, poplar substrates txhim kho toughness, thaum birch veneers txhim khu hardness, ua tau raws li ntau yam kev thov. Tsis tas li ntawd, plywood khaws cov kev ntxhib los mos ntawm cov ntoo, thiab nws qhov chaw tuaj yeem raug coated los yog laminated, yoog raws cov kev xav zoo nkauj xws li cov khoom vaj khoom tsev yooj yim mus rau siab -kawg kev cai tsim.
Nyob rau hauv cov nqe lus ntawm daim ntawv thov, plywood yog ib tug ntau yam khoom siv nyob rau hauv ntau yam lag luam. Hauv kev tsim kho, nws lub siab load-cov kabmob muaj peev xwm thiab ntsia thawv- tuav lub zog txhawb nqa engineering xws li formwork thiab partitions; hauv kev tsim cov rooj tog zaum, nws lub teeb yuag thiab siab - cov yam ntxwv muaj zog yog qhov zoo tagnrho rau kev tsim cov rooj tog vaj huam sib luag; thiab kev lag luam ntim khoom cia siab rau nws qhov cuam tshuam los xyuas kom muaj kev nyab xeeb ntawm kev thauj mus los ntawm cov cuab yeej precision. Nyob rau hauv xyoo tas los no, nrog rau qhov nrov ntawm cov khoom siv vaj tsev ntsuab, ib puag ncig tus phooj ywg plywood nrog tsawg formaldehyde emissions tau maj mam dhau los ua lag luam tseem ceeb, tsav kev lag luam mus rau qis - carbon transformation.
Raws li ib qho piv txwv ntawm kev siv cov khoom siv tau zoo, plywood tseem txhim kho kev siv ntoo los ntawm kev siv cov ntoo me me - txoj kab uas hla thiab ceev - cog ntoo hauv nws cov kev sib xyaw ua ke, txo qhov siab ntawm kev sau hav zoov. Nyob rau hauv lub neej yav tom ntej, nrog kev txhim kho cov txheej txheem precision thiab kev ua haujlwm tshiab (xws li kev ua dej tsis zoo thiab hluav taws kub - kev hloov kho retardant), plywood yuav txuas ntxiv nthuav nws cov nqi ciam teb hauv kev tsim kho kom ruaj khov thiab siab -kev tsim khoom kawg, dhau los ua qhov txuas tseem ceeb txuas rau kev ua haujlwm ntoo nrog kev lag luam niaj hnub no.