Tapanganso mipando yopangidwa ndi zinthu zina kuwonjezera pa matabwa, kuphatikizapo plywood ndi matabwa a zala, koma tsopano timangopanga plywood pogwiritsa ntchito zipangizo zotsatirazi: E0, E1, ndi E2 zonse zimatanthawuza miyezo ya chilengedwe yokhala ndi milingo yochepa ya formaldehyde kumasulidwa.E2（≤ 5.0mg/L), E1 (≤1.5mg/L), E0 (≤0.5mg/L)
E1 ndizofunikira kwambiri kuti plywood yamalonda ikwaniritse malo okhala.Ndi kuchuluka kwa kufunikira kwa zinthu,
Mapulani olimba a matabwa a plywood akuchulukirachulukira mulingo wawo woteteza chilengedwe mpaka E0.
Momwe mungasiyanitsire mtundu wa plywood, ukhoza kusiyanitsa ndi mfundo zotsatirazi:
Choyamba, mphamvu yolumikizana ndi yabwino;Mtundu uliwonse wa mphamvu zomatira za board ndizabwinoko, zomwe zikutanthauza kuti mphamvu yomatira ndiyofunikira.Choyamba, onani ngati pali zochitika zoonekeratu zosanjikiza mozungulira komanso ngati pali thovu pamwamba.Kachiwiri, pokankhira pamanja ndikukanikiza choletsa, mumamva phokoso lililonse.Inde, ngati pali phokoso, sizingakhale chifukwa cha khalidwe lopanda zomatira.Zitha kukhala chifukwa cha dzenje lopanda kanthu kapena zinthu zosafunikira zomwe zimagwiritsidwa ntchito pa board core, koma zonse zikuwonetsa kuti mtunduwo si wabwino.
Kachiwiri, flatness ndi zabwino;Kuchokera pamenepa, zikhoza kuwoneka kuti zinthu zamkati za bolodi zimagwiritsidwa ntchito.Pamene tikuyang'ana bolodi, timayigwira ndi manja athu kuti timve ngati pali kusiyana kulikonse.Ngati pali, zimasonyeza mfundo ziwiri: mwina pamwamba si bwino mchenga, kapena pachimake bolodi amapangidwa ndi zipangizo osauka, amene ndi kugawikana.
Chachitatu, bolodi likakula, zimakhala zosavuta kuziwona.Mwachitsanzo, 18cm multilayer plywood imapangidwa ndikukanikiza zigawo 11 za board pachimake.Ngati wosanjikiza uliwonse wapangidwa ndi zinthu zonse, zigawozo zimakhala zomveka bwino ndipo sipadzakhala chodabwitsa cha zigawo zowonjezereka.Ngati zipangizo sizikugwiritsidwa ntchito bwino ndipo pali zinthu zambiri zophwanyidwa, chifukwa cha kupanikizika, zigawozo zidzadutsana ndikupanga kusagwirizana pamwamba.
Chachinayi, bolodi labwino kwenikweni silimapunduka;Kuchuluka kwa mapindikidwe kumakhudzana makamaka ndi mawonekedwe a nkhuni pawokha, chinyezi chake, ndi nyengo.Zomwe tingathe kuzilamulira ndi chinyezi.Tikhozanso kusankha matabwa opanda mapindikidwe ochepa.
Chachisanu, kaya makulidwewo ali mkati mwa muyezo;Nthawi zambiri, makulidwe a matabwa abwino ali mkati mwa miyeso ya dziko.
Kutsogolo kwa bolodi la chala ndi chimodzimodzi ndi plywood yamitundu yambiri.Bolodi la zala ndi bolodi lopangidwa mwa kuphatikizira zinyalala zotsalira pambuyo pokonza matabwa aiwisi, ndipo bolodi lamitundu yambiri ndi bolodi lomwe limadula thabwa loyambirira kukhala tizidutswa tating'ono kenaka n’kumamatira pamodzi.Mitengo ya ziwirizi ndi yofanana, koma chifukwa cha kusowa kwazitsulo mu bolodi la chala, zimakhala zosavuta kusokoneza poyerekeza ndi plywood yambiri.
Kugwiritsidwa ntchito kwa mbale zolumikizira zala sikuli kokulirapo ngati mbale zamitundu yambiri.Mwachitsanzo, ngati zigawo zina zazitali zimagwiritsidwa ntchito ndi mbale zolumikizira zala, mphamvu yake yonyamula katundu sikhala yabwino ngati ya plywood yambiri, ndipo sachedwa kusweka ndi mphamvu yakunja.Nthawi zambiri matabwa a zala amagwiritsidwa ntchito popanga zitseko zazikulu ndi mashelefu.Ndipo plywood yamitundu yambiri imatha kupangidwanso, kotero sitigwiritsa ntchito matabwa olumikizana zala tsopano.
Nthawi yotumiza: May-29-2023