Ob-component board kua nplaum
5. Kev siv:
(1) Pretreatment: cov khoom siv hauv paus leveling, kua nplaum, raws li kev faib ua feem ntawm tus neeg sawv cev tseem ceeb (milky dawb) thiab curing agent (dub xim av) 10: 1 ratio.Ku cov kua nplaum sib npaug, thiab cov kua nplaum sib xyaw yuav tsum siv li ntawm 30 ~ 60 feeb.
(2) sizing: sizing yuav tsum ua kom tiav nyob rau hauv 1 feeb, daim ntaub nplaum yog uniform thiab kawg daim ntaub nplaum yuav tsum txaus.
(3) kev sib xyaw: lub sij hawm siab kom txaus, lub phaj coated nyob rau hauv 1 feeb, 3 feeb yuav tsum pressurized, lub sij hawm siab 45 ~ 120 feeb, tshwj xeeb hardwood 2 ~ 4 teev.Pressure yuav tsum txaus, cork 500 ~ 1000kg / m2 , hardwood 800 ~ 15000kg / m2.
(4) Tom qab kev kho mob: tom qab lub siab nyem kom muaj kev noj qab haus huv, kev noj qab haus huv kub siab tshaj 20 ℃, 24 teev tuaj yeem ua tiav maj mam (pom, planer), 72 teev tom qab kev sib sib zog nqus, lub sijhawm kom tsis txhob tshav ntuj thiab nag ntub.
Cov khoom npe: ob-tivthaiv plywood nplaum
Hom PVAC - PB
Muaj peev xwm ntau yam specifications
Cov xim sab nrauv yog milky dawb
Kev kho mob 50%
Hom yuav tsum sib phim
Viscosity (MPa · s) 5000-8000
PH 5-6
Lub sijhawm ua haujlwm 2-4 teev
Lub neej txee yog 12 lub hlis
Khoom parameters
| npe khoom | Ob-component board kua nplaum | Hom lub npe | lus |
| hom | PVAC-PB | viscosity(MPA.S) | 5000-8000 |
| Specifications | 1L,5 KG,10 KG,25 KG,50 KG | PH | 5-6 |
| Sab nrauv xim | Tus neeg sawv cev tseem ceeb (Ivory) Hardener (lub teeb xim av) | Lub sijhawm kho | 2-4 h |
| Cov ntsiab lus ruaj khov | Tus neeg sawv cev tseem ceeb(≥50%)Hardener(≥99%) | Txee lub neej | 12 hli |
Nta
1, Muaj zog adhesion
2 、 Kev tiv thaiv dej zoo heev
3, ruaj khov nyob rau hauv qhov xwm txheej
Scope ntawm daim ntawv thov
Nws yog tsim rau jigsaw bonding ntawm cov ntaub ntawv uas tsis yog cov qauv thiab cov khoom siv.
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Cov lus qhia
1, Pretreatment: Cov dej noo ntawm cov ntoo yuav tsum tau tswj ntawm 8-12%;Qhov kev sib txuas ntawm lub hauv paus yuav tsum du thiab tiaj tus, tsis muaj warpage, plua plav, roj, thiab lwm yam.
2, Qhov loj me: tus neeg sawv cev tseem ceeb: tus neeg sawv cev kho (10: 1) qhov sib xyaw ua ke yuav tsum tau ua kom tag nrho do rau 3-5 feeb, kom txog thaum sib tov.Tom qab cov kua nplaum tau npaj, nws yuav tsum siv li ntawm 1-2 teev.npuas thiab ntim nthuav dav tuaj yeem tshwm sim thaum siv, uas yog ib txwm tshwm sim.Koj tuaj yeem siv txuas ntxiv tom qab me ntsis nplawm.
3, Kho: Lub sijhawm nias yog feem ntau 2-4 teev, nyob ntawm qhov kub thiab txias
thiab humidity ntawm kev tsim kho ib puag ncig.
Cov kev ceev faj
1.Base material leveling yog qhov tseem ceeb:
Flatness tus qauv: ± 0.1mm Cov qauv dej: 8% -12%;
2. Qhov feem ntawm cov kua nplaum yog qhov tseem ceeb heev:
Tus neeg sawv cev tseem ceeb (dawb) thiab tus neeg sawv cev kho (dub xim av) yog sib xyaw ntawm qhov sib piv ntawm 100: 10 raws li qhov sib piv;
3. Do cov kua nplaum sib npaug:
Siv lub stirrer rov qab khaws cov colloid 3-5 zaug, tsis muaj cov kua xim av filamentous.Cov kua nplaum sib xyaw yuav tsum siv li ntawm 30-60 feeb;
4. Cov ntaub nplaum daim ntawv thov ceev ceev thiab raug:
Daim ntawv thov kua nplaum yuav tsum ua kom tiav hauv 1 feeb.Cov kua nplaum yuav tsum sib xws thiab cov kua nplaum ntawm qhov kawg yuav tsum txaus.
5.Lub sij hawm siab yuav tsum txaus
Cov coated boards yog nias ua ke nyob rau hauv 1 feeb, thiab yuav tsum tau pressurized nyob rau hauv 3 feeb.Lub sijhawm nias yog 45-120 feeb, thiab cov ntoo tawv yog 2-4 teev;
6, lub siab yuav tsum txaus:
Siab: softwood 500-1000kg /㎡hardwood 800-15000kg /㎡;
7, tom qab decompression kom muaj kev noj qab haus huv:
Qhov kub ntawm kev noj qab haus huv yog siab dua 20 ° C, nws tuaj yeem ua haujlwm maj mam (pom, npaj) hauv 24 teev, thiab tuaj yeem ua tiav hauv 72 teev.Tsis txhob tshav ntuj thiab nag thaum lub sij hawm;
