Melamine faced vaj huam sib luag tseem hu ua prelaminated vaj huam sib luag nrog cov xim sib txawv lossis kev ntxhib los mos. Melamine impregnated ntawv yog paved rau hauv ntoo raws li cov vaj huam sib luag zoo li MDF, particle board, plywood, block board, thiab tom qab ntawd laminated nrog kub thiab siab siab.Tam sim no tsis tshua muaj siab siab lamination yog nrov. Lub melamine daim ntawv nto tsis tsuas yog tuaj yeem txhim kho lub vaj huam sib luag lub zog, nruj thiab ruaj khov, tab sis kuj tuaj yeem ua rau nws qhov chaw muaj qhov zoo ntawm kev hnav tsis kam, kub tsis kam, tiv thaiv kev ua qias tuaj, kev tiv thaiv ib puag ncig, kev noj qab haus huv thiab kev ua haujlwm.
Prelaminated panels txheej txheem: Panels Npaj → Panels huv → Melamine Impregnated ntawv → Lamination → Reclean → Tshuaj xyuas → Khw. Ua ntej lamination, peb yuav tsum xaiv cov ntoo zoo raws li cov vaj huam sib luag thiab melamine impregnated ntawv, tsuas yog cov khoom tsim nyog yuav raug xaiv rau kev tsim khoom.
Daim ntawv impregnated xav tau cov ntsiab lus resin yog 130-150%, cov ntsiab lus tsis hloov pauv 6-7%, precuring degree ≦ 65%. Melamine impregnated ntawv yuav tsum nyob rau hauv zoo, thiab ntim nrog zaj duab xis los tiv thaiv kev nqus ntawm noo noo. Nws yog qhov zoo dua rau laminate ua ntej 3 lub hlis tom qab tsim khoom, thiab khaws cia rau hauv lub tsev qiv ntawv nrog cov txheeb ze ya raws ntawm 60 + 5%, qhov kub ntawm 20-25 ℃. Cov panels nrov tshaj plaws yog fiberboard, particle board thiab plywood. Cov vaj huam sib luag zoo yuav tsum: 1) ob sab sanding, qhov saum npoo yog du thiab ci, tuab tuab, tuab kam rau ua 0.2 hli. 2) Cov npoo ntawm cov npoo tsis zoo, tsis noj, tsis muaj roj lossis dej paug. 3) noo noo cov ntsiab lus ntawm lub rooj tsavxwm yog tswj nyob rau hauv thaj tsam ntawm 6-10%.
Thaum lub sij hawm lamination txheej txheem, peb yuav tsum nruj me ntsis ua raws li cov kev specifications, tswj kub nias 140-190 ℃, chav tsev siab 2.0-3.0MPa, nias lub sij hawm 25-50s. Nias qhov kub thiab txias, siab thiab nias lub sij hawm yog kev sib koom ua ke thiab kev sib koom ua ke, uas tuaj yeem hloov kho raws li qhov tseeb xovxwm nyiam. Kub kub yog tsuas yog ua kom cov tshuaj tiv thaiv ntawm melamine resin, qhov kub ua haujlwm tshaj plaws yog 140-190 ℃. Kev kub siab tuaj yeem pab tso tawm tom qab xovxwm, thiab tuaj yeem txo lub sijhawm xovxwm, txhim kho kev ua haujlwm ntau lawm.Tab sis qhov kub thiab txias yuav ua rau cov resin curing ua ntej tsis sib xws, uas ua rau cov pore ntawm lub rooj tsavxwm. Lub siab tsim nyog tuaj yeem lav qhov zoo adhesion ntawm cov laug cam thiab daim ntawv impregnated, lub siab ua haujlwm feem ntau yog 2.0-3.0MPa, uas yog qhov zoo rau cov resin yaj thiab solidify, tsim lub kaw thiab compact nto. Raws li qhov ua tau zoo, qhov tsis tshua muaj siab yuav tsum tau siv los ua kom lub neej ntev ntawm cov khoom siv, thiab nws muaj txiaj ntsig zoo rau cov qauv sab hauv ntawm boars. Tab sis tsis tshua muaj siab yuav cuam tshuam rau lub zog nplaum thiab resin flow peev. Raws li qhov sib txawv ntawm cov vaj huam sib luag, chav tsev siab yuav tsum tau hloov kho los ntawm tsis muaj lev. Lub sij hawm nias nyob ntawm qhov ceev ceev ntawm resin nyob rau hauv daim ntawv impregnated thiab nias kub, thiab 25-50s yog qhov zoo tshaj plaws. Lub sij hawm ntev dhau lawm yuav ua rau cov resin curing ntau dhau thiab poob elastic, uas ua rau tawg los yog hauv kev xav thiab hauv cov txheej txheem hauv qab no yuav ua rau tawg, warping. Lub sij hawm luv luv, resin curing tsis txaus, ua rau cov laug cam nplaum thiab cuam tshuam rau cov khoom ruaj khov.
Kev tshuaj xyuas ntawm cov khoom tsis zoo thiab ua rau ntawm cov panels prelaminated:
1) Qhov chaw dawb, qhov laj thawj tseem ceeb yog qhov tsis zoo ntawm cov ntawv impregnated lossis cov ntsiab lus ntawm cov resin tsawg dua. Yog vim li cas tej zaum yuav yog: tsis muaj sanding ntawm board nto los yog sanding tsis sib xws, qhov twg qhov ceev yog qis dua, ua rau ntau npaum li cas ntawm resin absorption nyob rau hauv cheeb tsam no, thiab coj lub phem khiav ntawm resin uas ua rau dawb chaw.Kev nyuaj siab nyob rau hauv tej cheeb tsam, thiab Lub siab tsis txaus ntawm cov chaw no thaum lub sij hawm lamiantion, thiab coj cov dej tsis zoo ntawm cov resin, ces ua rau qhov chaw dawb. Kub kub heev, nrog lub siab tsis tshua muaj siab, thiab cov phaj hlau tsis zoo tuaj yeem cuam tshuam rau cov resin ntws, ces ua rau qhov chaw dawb.Mat puas tsuaj, ua rau. mus rau qhov sib txawv ntawm qhov sib txawv ntawm cov hlau phaj thiab ua rau qhov chaw dawb.Overtime cia ntawm melamine impregnated ntawv, siab pre-curing degree, los yog tsawg heev tus nqi PH ntawm cov laug cam, yuav cuam tshuam cov resin ntws thiab ua rau dawb. Cov ntsiab lus ntau dhau ntawm melamine impregnated ntawv tuaj yeem ua npuas thaum lub sij hawm lamination thiab ua rau qhov chaw dawb.
2) Qhov chaw ntub dej, yog hais txog cov kab nrib pleb ntawm cov boards prelaminated nto, thiab muaj qhov tsis xws luag.Qhov laj thawj tseem ceeb yog: Cov ntsiab lus tsis zoo ntawm daim ntawv impregnated lossis daim ntawv impregnated yuav ua rau ntub dej thaum lub sij hawm lamination.Low pre-curing, qis. nias kub los yog txhaj tshuaj nias lub sij hawm, yooj yim tshwm sim ntub chaw.Hu noo noo cov ntsiab lus ntawm cov laug cam ua rau ntub qhov chaw thaum lamination.
3) Nplaim nrog steel phaj hais txog melamine board stick nrog steel phaj thaum lamination. Kev nplaum me ntsis yuav cuam tshuam rau saum npoo zoo, nplaum nplaum yuav cuam tshuam rau kev tsim khoom.Cov laj thawj tseem ceeb yog: cov ntsiab lus siab resin los yog qias neeg hlau phaj, ua rau tsis zoo tso tawm. Cov ntsiab lus siab tsis hloov pauv ntawm daim ntawv impregnated, qis nias kub thiab lub sijhawm luv luv, ua rau cov resin tsis tau kho kom zoo rau kev tso tawm tsis zoo. Kev puas tsuaj ntawm lev uas ua rau qhov kub tsis sib xws ntawm cov phaj steel coj qhov kev tso tawm tsis zoo. Cov dej noo ntau lossis PH tus nqi siab ntawm cov laug cam coj qhov kev tso tawm tsis zoo.
4) Cov npuas, cov laj thawj tseem ceeb: kub nias siab dhau lawm, lub sijhawm nias ntev dhau los ua rau demix lossis npuas. Cov dej noo ntau dhau los yog nyias ntawm cov laug cam tuaj yeem ua rau demix lossis npuas thaum lub sijhawm lamination.Ntau qhov ntom ntom ua rau demix lossis npuas.
5) Hneev warping hais txog qhov tsis sib xws ntawm qhov chaw lossis txiav dabtsi yog khoov vim qhov tsis zoo ntawm sab hauv lub siab lub zog. Cov laj thawj tseem ceeb yog: qhov sib txawv loj hauv qhov kub thiab txias ntawm lub phaj steel sab saud ua rau qhov sib txawv ntawm qhov ceev thiab ua rau hneev warping. Cov ntawv sib txawv ntawm melamine impregnated ntawm ob qhov chaw yuav ua rau khoov tom qab lamination.Yog cov kub prelaminated boards raug thauj mus rau cov pallets tsis tiaj tus, nws yuav ua rau khoov.
Nyob rau hauv luv luv, peb yuav tsum xaiv cov zoo heev impregnated ntawv thiab ntoo-raws li lub vaj huam sib luag raws li raw cov ntaub ntawv, thiab optimize cov txheej txheem ntau lawm raws li ib tug ntau lawm cov khoom, nyob rau hauv kev sib koom tes ntawm lub lag luam thiab soj ntsuam cov neeg, uas muaj peev xwm xyuas kom meej stability ntawm cov khoom zoo.