Mazita avo akasiyana, chimiro chebhodhi chakasiyanawo, uye simba rekumanikidza uye kusimba kwakasiyana.
LVL, LVB, uye plywood ese ari akawanda-layer mapuranga, anogadzirwa neglue uye nekutsikirira akawanda akaturikidzana ehuni veneer.
Zvinoenderana neyakachinjika uye yakatwasuka nzira yehuni veneer kuronga, inogona kukamurwa kuita LVL uye plywood.
Laminated Veneer Lumber, inozivikanwawo seLVL (Laminated Veneer Lumber), imhando yeveneer inogadzirwa kubva kuhuni mbishi nekucheka kutenderera kana kuronga.Mushure mekuomeswa nekunamatira, inounganidzwa munzira yezviyo uye ipapo inopisa yakamanikidzwa uye yakanamatira.Iine hunhu hwemaumbirwo ayo matanda akasimba akachekwa haana: kusimba kwepamusoro, kusimba kwepamusoro, kugadzikana kwakanaka, uye nemadimikira chaiwo, ayo akapetwa katatu mukusimba uye kusimba kupfuura matanda akasimba akachekwa.Ichi chigadzirwa chinogona kushandiswa pakuvaka template zvikamu, matanda ekuvaka, mapaneru engoro, fenicha, pasi, kamuri yekushongedza keel yemapuranga, uye zvekurongedza zvinhu, zvine huwandu hwakawanda hwekushandisa.
Iyo yakaderera-yekupedzisira ndiyo inowanzo shandiswa kugadzira LVL Scaffolding Planks, LVL Formwork Beams, fenicha, magonhi epakati pemagonhi, uye zvigadzirwa zvekurongedza, nepo iyo yepamusoro-yekupedzisira inoshandiswa kugadzira matanda, mbiru, uye Structural LVL Beams yezvivakwa zvemapuranga.
LVL yese yakarongedzerwa munzira imwechete, nepo plywood yakarongedzwa mune imwe yakachinjika uye imwe yakatwasuka nzira.Mhando mbiri dzemapuranga dzine zvimiro zvakasiyana uye misiyano yekushanda, imwe neimwe ine kutarisa kwayo uye kusimba kwekusimba, iyo inogona kuongororwa.
LVB inzira yekuunganidza plywood veneers, zvakare ine hurongwa hwakasiyana hwehuni.Nekudaro, huwandu hwemapuranga akarongwa akachinjika uye neakareba nguva yega yega haina kugovaniswa zvakaenzana, inotarwa zvichienderana nezvinodiwa chaizvo (senge 3 yakachinjika, 2 yakatwasuka, uye 3 yakachinjika)
Kana ukobvu huri hutete (kazhinji pazasi 25mm), saka LVB inowanzo shandiswa, nekuti kuwedzera transverse veneer inogona kudzora hupamhi deformation yebhodhi kune imwe nhanho.Kana pane chinodikanwa chepamusoro chekusimba, saka zviri nani kushandisa LVL chimiro.Kune kazhinji marudzi maviri emauto paLVL: kumberi nedivi, uye kune kazhinji mhando mbiri dzekuyedzwa kwesimba: static bending simba uye elastic modulus.
Kazhinji, kusiyana kwavo kunogona kupedzwa sezvinotevera:
Kushandiswa: LVL veneer laminated matanda inonyanya kushandiswa muzvivako uye zvivako zvemapuranga;Plywood inonyanya kushandiswa kushongedza, fenicha, uye kurongedza.Ehe, mamwe mafekitori anogadzira LVL senge poplar, inogona zvakare kushandiswa mufenicha, kushongedza, uye kurongedza.
Chimiro: LVL laminated veneer uye Plywood zvose zvakagadzirwa nematanda vheneer kuburikidza nekupisa nekutsikirira uye kubatana, asi kurongeka kwekutungamira kwevheji kwakasiyana.Yese LVL veneers yakarongedzerwa munzira imwechete pamwe chete nezviyo, uye kutungamira kwepadyo nematanda emapuranga anofanana;Plywood yakarongwa yakatwasuka uye yakatwasuka, ine padyo nematanda ematanda anonamirwa akatwasuka.
Chitarisiko: Kune rumwe rutivi, chimiro chakasiyana kana chichitariswa kubva kune rumwe rutivi, uye kune rumwe rutivi, iyo Plywood pamusoro uye pasi inowanzogadzirwa nematehwe ematanda matete seOkoume, Bintangor, Red Oak, Ash, nezvimwe, izvo zviri. yakanaka kwazvo uye kusimbisa kushongedza;LVL laminated veneer, sechivako kana chivako chekugadzirisa, inosimbisa simba uye kutsauka, asi haina zvidikanwi zvepamusoro zvemapuranga.
Material: LVL laminated veneer inonyanya kugadzirwa nepine huni + phenolic resin (isina mvura, formaldehyde kuburitsa E0), nepo Plywood inowanzogadzirwa nepoplar/eucalyptus huni + MR glue (kazhinji hunyoro-uchapupu, formaldehyde kuburitsa E2, E1, E0).
Musiyano mukuru pakati pezviviri zviri mukuumbwa, kupisa kudzvanya, uye post processing yeveneer.Kubva pakuona kwemaitiro ekugadzira, mabhodhi eLVL akaomarara mukugadzira uye kugadzirisa maitiro, nepo plywood iri nyore.
Misiyano mukutanga kugadzirisa uye kugadzira inosarudza zvakasiyana chigadzirwa chekushandisa pakati pezviviri izvi.Kuenzaniswa neplywood, LVL board ine mamwe mabhenefiti musimba, kugadzikana, processability, kudzoreredza murazvo, kuvharisa inzwi, uye zvimwe zvinhu.
Nguva yekutumira: Aug-22-2023