Qhov sib txawv ntawm LVL, LVB, thiab plywood

Lawv cov npe txawv, cov qauv ntawm lub rooj tsavxwm kuj txawv, thiab lub zog compressive thiab firmness txawv.
LVL, LVB, thiab plywood yog txhua txheej txheej txheej, uas yog tsim los ntawm cov kua nplaum thiab nias ntau txheej ntawm ntoo veneer.
Raws li kab rov tav thiab ntsug cov lus qhia ntawm cov ntoo veneer, nws tuaj yeem muab faib ua LVL thiab plywood.
Laminated Veneer Lumber, tseem hu ua LVL (Laminated Veneer Lumber), yog ib hom veneer ua los ntawm cov ntoo nyoos los ntawm kev txiav los yog npaj.Tom qab ziab thiab gluing, nws yog sib sau ua ke nyob rau hauv cov kev taw qhia ntawm grain thiab ces kub pressed thiab glued.Nws muaj cov yam ntxwv cov yam ntxwv uas cov khoom ntoo sawn tsis muaj: siab zog, siab toughness, zoo stability, thiab meej specifications, uas yog peb zaug ntau dua nyob rau hauv lub zog thiab toughness tshaj cov khoom ntoo sawn ntoo.Cov khoom no tuaj yeem siv rau cov khoom siv hauv tsev, cov kab teeb hauv tsev, cov rooj sib tham, rooj tog zaum, hauv pem teb, chav tsev kho kom zoo nkauj ntoo keel, thiab cov khoom ntim, nrog rau ntau yam kev siv.

Cov qis kawg feem ntau yog siv los ua LVL Scaffolding Planks, LVL Formwork Beams, rooj tog zaum, qhov rooj vaj huam sib luag, thiab cov khoom ntim khoom, thaum cov khoom siv high-end yog siv los ua cov kab, kab, thiab cov qauv LVL Beams rau cov qauv ntoo.
LVL yog tag nrho cov txheej txheem nyob rau hauv tib txoj kev, thaum plywood yog teem nyob rau hauv ib tug kab rov tav thiab ib ntsug txoj kev.Ob hom boards muaj cov qauv sib txawv thiab kev ua haujlwm sib txawv, txhua tus muaj nws tus kheej ua kom pom tseeb thiab toughness stability, uas tuaj yeem kuaj xyuas.

LVB yog ib txoj hauv kev sib dhos plywood veneers, kuj muaj kev sib txawv ntawm cov ntoo veneers.Txawm li cas los xij, tus naj npawb ntawm cov ntoo veneers tau teem caij horizontally thiab longitudinally txhua zaus tsis sib npaug, uas yog txiav txim siab raws li cov kev xav tau tshwj xeeb (xws li 3 kab rov tav, 2 ntsug, thiab 3 kab rov tav)
Yog tias cov tuab tuab heev (feem ntau yog qis dua 25mm), ces LVB feem ntau yog siv, vim tias ntxiv transverse veneer tuaj yeem tswj tau qhov dav deformation ntawm lub rooj tsavxwm rau qee yam.Yog tias muaj kev xav tau siab rau lub zog, ces nws yog qhov zoo tshaj los siv LVL qauv.Feem ntau muaj ob hom kev quab yuam ntawm LVL: pem hauv ntej thiab sab, thiab feem ntau muaj ob hom kev kuaj lub zog: zoo li qub bending zog thiab elastic modulus

Lawv qhov sib txawv feem ntau tuaj yeem txiav txim siab raws li hauv qab no:
Kev Siv: LVL veneer laminated ntoo yog siv hauv cov tsev thiab cov ntoo;Plywood feem ntau yog siv rau kev kho kom zoo nkauj, rooj tog zaum, thiab ntim khoom.Tau kawg, qee qhov chaw tsim khoom tsim LVL xws li poplar, uas tuaj yeem siv rau hauv rooj tog, kho kom zoo nkauj, thiab ntim khoom.
Structure: LVL laminated veneer thiab Plywood yog ob qho tib si ua los ntawm cov ntoo veneer los ntawm kev kub nias thiab kev sib txuas, tab sis cov kev taw qhia ntawm cov veneer txawv.Tag nrho LVL veneers tau teem rau tib qho kev taw qhia raws cov nplej, thiab cov kev taw qhia ntawm cov ntoo veneers uas nyob ib sab yog sib npaug;Plywood yog teem caij vertically thiab horizontally, nrog cov khaubncaws sab nraud povtseg ntawm ntoo veneers oriented vertically.
Qhov tshwm sim: Ntawm ib sab, cov qauv sib txawv thaum saib ntawm ib sab, thiab ntawm qhov tod tes, Plywood nto thiab hauv qab feem ntau yog ua los ntawm cov tawv ntoo nyias xws li Okoume, Bintangor, Liab Oak, Tshauv, thiab lwm yam, uas yog zoo nkauj heev thiab hais txog kev kho kom zoo nkauj;LVL laminated veneer, raws li lub tsev lossis cov khoom siv, hais txog lub zog thiab deflection, tab sis tsis muaj qhov xav tau siab rau cov vaj huam sib luag.
Khoom siv: LVL laminated veneer yog tsim los ntawm ntoo thuv + phenolic resin (waterproof, formaldehyde tso E0), thaum Plywood feem ntau yog ua los ntawm poplar / eucalyptus ntoo + MR kua nplaum (feem ntau noo noo-pov thawj, formaldehyde tso E2, E1, E0).

Qhov loj tshaj qhov sib txawv ntawm ob qhov lus dag hauv kev tsim, kub nias, thiab tom qab ua tiav ntawm veneer.Los ntawm txoj kev xav ntawm cov txheej txheem ntau lawm, LVL cov laug cam yog ntau txoj hauv kev tsim thiab ua cov txheej txheem, thaum plywood kuj yooj yim.
Qhov sib txawv ntawm kev ua ntej thiab kev tsim khoom txiav txim siab cov khoom siv sib txawv ntawm ob.Piv rau plywood, LVL board muaj qhov zoo dua hauv lub zog, ruaj khov, kev ua tau zoo, nplaim hluav taws xob, suab rwb thaiv tsev, thiab lwm yam.