veneer yog dab tsi, tsis yog txhua tus paub, tab sis tsuas yog cov uas cuam tshuam nrog cov khoom no. Qhov no yog lub npe muab rau cov khaubncaws sab nraud povtseg ntawm ntoo, uas tau los ntawm sawing, npaj los yog tev ntoo cav.
Scope of application
Hnub no, veneer feem ntau yog siv los ua cov rooj tog ntoo. Tab sis qhov no tsis yog tib cheeb tsam uas nws nyuaj ua tsis muaj cov khoom siv no. Nov yog qhov chaw tsim khoom:
- Qhov rooj.
- skateboards.
- Cas rau suab paj nruag.
- Delta ntoo.
- plywood.
- Match straws.
- Tsheb sab hauv trims.
Tus yam ntxwv sib piv
Kom nkag siab zoo dua cov yam ntxwv ntawm txhua hom veneer, koj yuav tsum saib tsis yog ntawm cov yam ntxwv ntawm nws cov khoom tsim, tab sis ntawm qhov sib txawv ntawm cov neeg siv khoom. Kev sib piv ntawm cov tuab ntawm ntau hom veneer yuav pab kom nkag siab qhov no:
- Sawn - 0, 1-1, 0 cm.
- Sliced - 0.2 txog 5mm.
- Pulled - 0.1-10 mm.
Yog li, tev veneer sib txawv hauv cov tuab ntawm cov khoom zoo sib xws thiab pheej yig dua. Txij li ntawm tag nrho cov npe teev txoj hauv kev tau txais veneertev yog qhov pheej yig tshaj plaws, yog li peb yuav tham txog txoj hauv qab no.
Qhov txawv ntawm
Cov yam ntxwv hauv qab no yuav pab koj paub qhov txawv ntawm cov veneer los ntawm analogues ntawm lwm hom:
- Tsawg thickness. Hauv lwm lo lus, cov khoom siv no yog qhov thinnest.
- Yog siv cov ntoo curly, cov khoom zoo nkauj ntawm cov khoom nce ntxiv.
- Muaj qhov sib txawv ntawm cov ntoo lig thiab ua ntej.
- Nyiaj. Nws yog qhov qis tshaj precisely vim peculiarities ntawm ntau lawm. Yog tias siv cov khoom siv kim dua (cedar, larch), ces tus nqi yuav siab dua. Tab sis thaum piv nrog lwm txoj kev tsim khoom, tus nqi tseem yuav qis dua.
Production Features
Vim li cas cov veneer veneer suav tias yog tus nqi zoo tshaj? Cov lus teb yog qhov yooj yim heev: vim tias nws qhov chaw tsim khoom yuav tsum muaj yam tsawg kawg nkaus ntawm cov khoom siv thiab cov khoom siv. Nws tshwm sim li no:
- Npaj blanks los ntawm ntoo ntawm qhov ntev. Ua li no, lub cev txiav yog ntxuav ntawm ceg, ceg, thiab ntau yam kev loj hlob.
- Ib qho uas npaj tau ntoo dawb yog muab tso rau ntawm lub tshuab dhos. Koj tuaj yeem siv cov ntoo rau qhov no - qhuav lossis nyoos. Qhov tseem ceeb, nws yog ib qho yooj yim rau tev tsis qhuav, tab sis raw ntoo. Qhov tseem ceeb tshaj plaws yog los kho qhov txiav ntawm lub tshuab dhos kom raug raws li qhov ua tau kom nws tshem tawm cov txheej txheem saum toj kawg nkaus ntawm lub workpiece nyob rau hauv ib tug kauv, muab xws li.txoj kev, khoom canvas.
- Ua kom ntxhib thiab tom qab ntawd ua haujlwm thawj zaug ntawm cov khoom ua haujlwm. Qhov no yog qhov tsim nyog los tshem tawm cov tawv ntoo ntawm tsob ntoo thiab theem saum npoo - nws ua du, txawm.
- theem kawg yog tshem tawm ib txheej ntawm ntoo ntawm lub thickness predetermined. Cov txheej txheem raug tshem tawm raws tag nrho qhov ntev ntawm lub workpiece tib lub sijhawm, uas tso cai rau koj kom tau txais qhov siab tshaj plaws ntawm cov khoom.
Tab sis daim kab xev tiav tseem yog ib qho khoom tiav uas yuav tsum tau ua ntxiv. Cov ntaub ntawv tseem ceeb rau kev tsim cov veneer tev - GOST 2977-82, qhia cov haujlwm hauv qab no: cov canvases tiav yuav tsum tau txheeb xyuas, suav nrog qhov zoo ntawm cov khoom, nws cov tsos, hom ntoo, kev ntxhib los mos, tom qab ntawd - cim, txiav rau hauv ntu, sib koom cov npoo, thiab tsuas yog tom qab fasten txhua pob. Ntxiv mus, tsis siv cov khoom ntim zoo tib yam, tab sis cov khoom siv tshwj xeeb.
Feem ntau, tev yog siv los ua cov khoom sib xws - cov txheej txheem ntawm cov ntoo yog crushed rau hauv nyias strips thiab txiav mus rau hauv me me pieces, raws li koj yuav twv - qhov ntev ntawm cov ntais ntawv. Cov khoom siv rau kev tsim cov khoom sib tw yog feem ntau aspen, raws li cov khoom siv pheej yig tshaj plaws ntawm tus nqi thiab muaj.
Yog tias birch tau ua tiav rau hauv veneer, cov khoom tau txais nrog cov txiaj ntsig zoo nkauj dua. Tsis tas li ntawd, kev tsim cov rotary txiav veneer los ntawm cov nram qab no hom ntoo:
- Buka.
- Oak.
- Ash.
- Limes.
- Elms.
- Cedar.
- Larches.
Cov khoom siv kim dua, tus nqi siab dua thiab, raws li, qhov zoo nkauj ntawm cov khoom siv. Tsis tas li ntawd, kev siv cov khoom siv ntxiv yog nyob ntawm hom ntoo siv.
Flaws
Txawm tias tus nqi qis, rotary txiav veneer tsis yog nrov rau cladding nyob rau hauv rooj plaub qhov kev zoo nkauj, txawv txawv tsim thiab zoo nkauj ntawm lub tiav lawm nto yuav tsum tau. Txhawm rau tshem tawm qhov tsis zoo no, nws yuav tsum tau dai kom zoo nkauj, uas tso cai rau cov canvases kom tag nrho siv los ua cov khoom muag.
txhawm rau txhim kho cov nyhuv zoo nkauj, tev veneer tuaj yeem raug dyeing nto, kub luam ntawv (pyrotype), opaque tiav. Tab sis qhov zoo li qub tsis cuam tshuam nrog nws siv rau lwm hom kev ua haujlwm.
ntoo khaub lig
Qhov kev zam yog curly ntoo. Txawm hais tias pilus suav hais tias yog lwm tus rau cov neeg ua teb, nws yog ib qho tseem ceeb rau kev tsim cov nplooj ntoo. Nws yog dab tsi? Qhov no yog lub npe ntawm trunks (los yog ceg) ntawm cov ntoo, nyob rau hauv uas cov fibers tsis nyob rau hauv lub cev, tab sis yog intertwined nyob rau hauv ntau yam lus qhia, tsim knots, bundles, bundles thiab lwm yam duab. Thaum lub sij hawm tshem tawm cov khaubncaws sab nraud povtseg ntawm ib lub tshuab dhos, cov fibers tsis poob hauv qab riam nyob rau hauv tib txoj kev. Yog li ntawd, nyob rau tib lub sij hawm, txheej yog muab tshem tawm hla, nrog rau, ntawm ib lub kaum sab xis. Nyob rau ntawm qhov chaw txiav, ib qho kev ntxhib los mos sib xyaw tau txais, uas emits niam-ntawm-pearl shimmer. Curl tshwm sim nyob rau hauv tag nrho cov breeds, tab sis nyob rau hauv ib co nws yog tsis tshua muaj, thaum nyob rau hauv lwm tus neeg nws yog feem ntau, los yog theej, tas li.
Cov hom nrhiav ntau tshaj plaws los ntawm cov veneer tau tsim yog birch, tab sis tsis zoo tib yam, tab sis Karelian, thiab kuj muaj qab zib maple. Ntxiv mus, lub birch muaj qhov txawv txav ntau dua vim qhov tseeb tias nws loj hlob ntawm Kola Peninsula, cov xwm txheej muaj qhov hnyav heev, thiab cov ntoo txhua xyoo tsis nyob hauv ib lub voj voog, tab sis zoo li rosettes wavy.
Qab zib maple ntoo yog npog nrog cov kab sib txuas uas muaj cov chaw tsaus. Tab sis txij li cov ntoo no tsis pom nyob rau thaj tsam ntawm yav dhau los Soviet Union, nrog rau kev zam ntawm Crimean Botanical Garden, tsuas yog birch yog siv rau kev tsim cov khoom siv veneer nrog cov ntsuas zoo nkauj. Lub tshuab rau kev tsim cov veneer los ntawm Karelian birch yog tib yam li los ntawm lwm hom, tab sis tus nqi, vim qhov tshwj xeeb ntawm cov khoom, yog me ntsis siab dua.
