Cov txheej txheem plywood, qhov siab - Lub zog composite cov khoom siv, yog siv dav hauv kev tsim kho, rooj tog zaum thiab kev lag luam. Nws cov hau kev ua haujlwm yuav tsum nruj dua cov txheej txheem kom ntseeg tau cov khoom zoo thiab kev nyab xeeb.
Kev npaj
Ua ntej ua haujlwm, tshawb xyuas cov plywood saum npoo rau flatness, kab nrib pleb, thiab deformation. Xaiv cov nplaum tsim nyog (xws li Phenum Resin, urea - ill formaldehyde resin, thiab lwm yam) raws li kev npaj siv. Kev ua haujlwm ib puag ncig yuav tsum huv thiab qhuav. Cov kev pom zoo kub yog 15-25 degree, thiab cov txheeb ze cov av noo tsis pub tshaj 70% los tiv thaiv cov teeb meem kev kho nplaum.
Gluing thiab los ua ke
Siv cov nplaum kom zoo rau qhov chaw vener. Daim ntawv thov tus nqi yog feem ntau 150-250g / m², nyob ntawm qhov tuab ntawm cov khoom siv. Tom qab thov cov nplaum, cia nws zaum rau 1-3 feeb kom txog thaum txheej nplaum nplaum tsim cov khoom lag luam pib ua ntej sib dhos. Lub sijhawm sib dhos, kom paub meej tias txhua txheej txheej kom haum rau kom tsis txhob muaj kev tsis zoo thiab siv lub siab kom ruaj ntseg rau cov vaj huam sib luag.
Siab thiab kho
Cov txheej txheem nplaum yog kho tau siv cov xovxwm txias lossis txias. Kev nias kub feem ntau tshwm sim ntawm 100-140℃ntawm 0.8-1.5 MPa, nrog rau lub sijhawm board (feem ntau 1-2 feeb ib millimeter ntawm tuab). Cov kev lag luam txias yuav tsum thov cov siab qis (0.5-1.0 MPA) ntawm chav sov tsawg kawg 24 teev. Nquag xyuas cov kev sib tw siab tsis tu ncua thaum lub sijhawm nias tus txheej txheem los tiv thaiv kom tsis txhob muaj kev xoob kom ua haujlwm hauv ib ntus.
Post -} ua
Tom qab kho, tso lub siab thiab tso cai rau daim ntawv cog lus mus so rau 24 teev rau kev ruaj khov. Cov npoo yog txiav kom tshem tawm burrs thiab tshaj cov kua nplaum, thiab cov khoom siv tshaj plaws los ntawm tensile thiab kev ntsuam xyuas flex. Cia yuav tsum zam rau hauv cov chaw noo noo, nrog cov ntawv sib txuas ntsug thiab ntoo sib xyaw siv los tiv thaiv ya raws.
Cov txheej txheem kev ua haujlwm kom zoo tau txhim kho cov cuab yeej siv tshuab thiab ua kom tau txais nws txoj kev ntseeg tau hauv load - cov kabmob qauv.
