Baltic birch plywood qib (B, BB, CP, C qib)

Qib ntawm baltic birch plywood raug soj ntsuam raws li qhov tsis xws luag xws li pob qhov (nyob pob qhov rooj, cov pob txha tuag, cov pob txha tawg), lwj (heartwood lwj, sapwood lwj), kab qhov muag (kab qhov muag loj, kab me qhov muag, kab mob epidermal kab grooves), Cov kab nrib pleb (los ntawm cov kab nrib pleb, tsis yog los ntawm cov kab nrib pleb), khoov (transverse dabtsi yog khoov, ncaj bending, warping, ib sab dabtsi yog khoov, ntau sided dabtsi yog khoov), twisted grain, sab nraud raug mob, blunt npoo, thiab lwm yam, raws li nyob rau hauv lub xub ntiag, loj, thiab ntau. ntawm cov tsis xws luag.Tau kawg, vim qhov sib txawv ntawm cov khoom siv (kev siv ncaj qha ntawm cov cav, sawn cav, sawn cav, thiab lwm yam), cov peev txheej (hauv tsev lossis txawv teb chaws), thiab cov qauv (cov qauv hauv tebchaws lossis kev lag luam), muaj cov kev cai sib txawv.Piv txwv li, muaj qib I, II, thiab III, nrog rau qib A, B, thiab C, thiab lwm yam.Rau kev nkag siab tob txog qhov kev paub no, thov xa mus rau cov qauv ntoo lossis cov khoom siv.

Lub baltic birch plywood muab faib ua Class B, BB, CP, thiab C. Qhov kev ntsuam xyuas yog raws li nram no:

Chav B

Ntuj baltic birch ntoo veneer qib yam ntxwv:

Lub teeb xim pob tw nrog qhov siab tshaj plaws ntawm 10 millimeters raug tso cai;Qhov siab tshaj plaws ntawm 8 knots ib square meter tau tso cai, nrog txoj kab uas hla tsis tshaj 25mm;

Rau cov nodes nrog cov kab nrib pleb los yog ib feem ntawm cov pob qij txha, yog tias lawv txoj kab uas hla tsawg dua 5 millimeters, tus lej tsis txwv;

Rau cov kab tawg los yog ib feem ntawm cov kab uas muaj kab ntau tshaj 5 millimeters, qhov siab tshaj plaws ntawm 3 nodes ib square meter raug tso cai.Qhov siab tshaj plaws ntawm 3 knots ib square meter raug tso cai kom poob tawm, thiab tsis pub cov xim av;Kev tawg thiab cov ntaub ntawv tseem ceeb tsis raug tso cai.

Cov yam ntxwv theem ntawm kev tsim khoom:

Tsis muaj patching tso cai, tsis muaj ob chav patching tso cai, tsis muaj putty patching tso cai, tsis muaj kuab paug ntau lawm tso cai, thiab tsis pub splicing.

Class BB

Ntuj baltic birch ntoo veneer qib yam ntxwv:

Tsaus lossis lub teeb xim pob qhov rooj nrog qhov siab tshaj plaws ntawm 10mm raug tso cai: tsis pub ntau tshaj 20 pob qhov taub nrog txoj kab uas hla ntawm 25mm lossis tsawg dua.Cia 5 ntawm lawv muaj txoj kab uas hla mus txog 40 millimeters.Tsis muaj kev txwv rau tus lej. ntawm qhib los yog semi qhib tuag knots nrog ib txoj kab uas hla ntawm tsawg tshaj li 15 hli.Cia 3 qhib los yog ib nrab qhib tuag pob caus ib square meter.Natural xim av sib txawv tsawg tshaj li 50% board nto.Cracks nrog ib tug dav ntawm tsis tsawg tshaj li 2 millimeters thiab ib tug qhov ntev ntawm tsis ntau tshaj 250 millimeters raug tso cai kom muaj 5 kab nrib pleb ib 1.5 meters.Cov khoom tseem ceeb yuav tsum tsis pub tshaj 50% ntawm lub rooj tsavxwm nto.

Cov yam ntxwv theem ntawm kev tsim khoom:

Ob chav patching, putty patching, zus tau tej cov stains, thiab splicing tsis pub.

Qhov txwv ntawm tus naj npawb ntawm thaj ua rau thaj yog sib npaug rau tus naj npawb ntawm flatteries tau hais los saum toj no.

Chav Kawm CP

Ntuj baltic birch ntoo veneer qib yam ntxwv:

Knots tso cai:

Crack dav tsis ntau tshaj 1.5mm:

Qhib lossis semi qhib cov pob txha tuag raug tso cai: tsis muaj kev txwv rau cov xov tooj ntawm cov pob txha qhib tuag nrog txoj kab uas hla tsawg dua 6 millimeters.Natural xim av xim sib txawv me ntsis raug tso cai.Nws tsis muaj kev txwv rau cov kab nrib pleb nrog qhov dav ntawm tsis ntau tshaj 2 millimeters thiab ntev tsis ntau tshaj 600 millimeters.

Cov yam ntxwv theem ntawm kev tsim khoom:

Putty patching, tsim cov stains, thiab splicing tsis raug tso cai.

Tag nrho cov pob txha tuag nrog txoj kab uas hla ntau dua 6 hli yuav tsum tau patched thiab muab ob npaug rau patching.

Chav Kawm C:

Ntuj birch ntoo veneer qib yam ntxwv:

Tso cai rau cov xim tsaus thiab lub teeb xim;

Qhib lossis semi qhib kaw kaw raug tso cai;Qhov siab tshaj plaws ntawm 10 qhib pob rau ib square meter yog tso cai rau diameters hauv qab 40mm.Thaum ua triple birch plywood, lub qhov tom qab symmetrical tuag knots poob tawm yuav tsum tsis txhob siv rau txheej txheej.Natural xim av sib txawv me ntsis pub.

Cov yam ntxwv theem ntawm kev tsim khoom:

Splicing tsis raug tso cai, goosebumps ntawm qhov chaw tuaj yeem siv yam tsis muaj kev sib khi, thiab pab pawg tsim khoom raug tso cai.