Dab tsi yog txoj kev ua haujlwm tshwj xeeb rau plywood

   Veneer veneer for plywood generally adopts single-sided adhesive coating, and the amount of adhesive applied varies with the type of substrate and the thickness of the veneer. For example, when using plywood as the substrate and the thickness of the thin wood is ≤ 0.4mm, the single-sided adhesive coating amount of the substrate is 110-120g/m ²; When the thickness of the thin wood is>0.4mm, cov kua nplaum siv yog 145-170g/m ². Thaum siv cov boards ntau txheej ua cov substrate, cov nplaum ib leeg yog 170-200g / m ², thiab thaum siv cov boards sib xyaw ua cov substrate, cov nplaum ib leeg yog li 150g / m ². Thaum siv cov kua nplaum, lub thickness ntawm cov nplaum nplaum yuav tsum tsis sib xws thiab tsim nyog los tiv thaiv qhov tshwm sim ntawm cov kua nplaum nkag, cov kua nplaum tsis txaus, lossis cov kua nplaum uas ploj lawm. Txhawm rau kom ntseeg tau tias daim ntawv thov ntawm cov nplaum, cov kua nplaum nplaum feem ntau siv rau cov menyuam, uas yog cov menyuam roj hmab tsis muaj grooves.
Thaum siv cov txheej txheem ntub dej ntub rau veneer, thermosetting nplaum yog thawj zaug siv rau saum npoo ntawm plywood, thiab daim ntawv txuas rau saum npoo ntawm plywood. Tom qab kev laus rau ib lub sijhawm, cov nplaum yog siv rau saum npoo ntawm daim ntawv, thiab tom qab ntawd nyias cov nplaum nplaum yog siv rau saum npoo ntawm daim ntawv. Vim yog kev sib tshuam ntawm cov kua nplaum ntawm ob sab ntawm daim ntawv, nws nkag mus rau hauv daim ntawv. Thaum siv cov txheej txheem kev sib txuas qhuav, kub yaj resin nplaum yog thawj zaug siv rau saum npoo ntawm plywood, thiab daim ntawv tau muab tso rau ntawm cov nplaum nplaum ntawm lub substrate. Tom qab cov nplaum txias thiab solidifies, cov ntoo nyias yog ces coated nrog daim nplaum rau ntawm daim ntawv saum npoo. Txoj kev nplaum qhuav yog hindered los ntawm huab cua hauv daim ntawv thiab tsis tuaj yeem nkag mus tau zoo, ua rau daim ntawv muaj kev cuam tshuam rau interlayer tev. Thaum siv criss cross textured patchwork, kev sib nrig sib tuav nws tus kheej tuaj yeem tiv thaiv cov kab nrib pleb hauv cov plywood, thiab tsis tas yuav siv cov ntawv nplaum rau cov plywood.