Plywood ya grade marine, yomwe nthawi zambiri imatchedwa plywood plywood, si zomwe zimatchulidwa kawirikawiri. Ndiko kuti, siziteteza madzi. Popeza sizitsatiridwa ndi mankhwala sizowola zosagonjetsedwa. Komabe, ndi plywood yamtengo wapatali, yopangidwa ndi pulasitiki yopanda madzi. Maphunziro abwino amakhalanso opepuka, olimba, komanso opanda ungwiro. Makhalidwe amenewa ndi omwe amachititsa kuti plywood iyi ikhale yotchuka kwambiri popanga boti ndi ziwiya.
Imeneyi ndi njira yabwino yopangira mapulogalamu apamwamba a kunja kwa nyanja, makamaka atatha kulandira chitetezo champhamvu.
Plywood-grade plywood ndi mapangidwe apadera a Douglas fir kapena Western Larch, malinga ndi APA-The Engineered Wood Association. Mapulusi onse akhoza kukhala ndi ziphuphu, koma palibe knotholes. Plywood yamadzi amapezeka pa sukulu zotsatirazi:
- AA
- AB
- BB
- Kuphimbidwa Kwachangu (MDO)
- Kuphimba Kwambiri Kwambiri (HDO)
Mitengo Yina Yamatabwa
Mitengo ya nkhuni yomwe imakhala yosavomerezeka kuwonongeka, monga redwood, mkungudza, ipe , shorea, ndi cypress, zimakhala zovuta kuti zisawonongeke. Plywood phalasitiki sichitsatiridwa kuti asamayidwe, monga mapula opangira opaleshoni ndi plywood. Izi zikutanthauza kuti plywood plywood adzakhala poyera kuti chinyezi, ayenera kutetezedwa ndi kumapeto bwino madzi osagwira. Ngati mukufuna zakuthupi zomwe zimatha kutentha popanda kuteteza, sankhani matabwa opangira opanikizika kapena mapulogalamu omwe amawunikira.
N'chifukwa Chiyani Gulu Wothirira Madzi?
Phindu lalikulu pogwiritsa ntchito guluu lopanda madzi mu plywood plywood ndilo ngati plywood ikuwoneka ndi chinyezi, kapena ngakhale kutentha kwambiri kapena kutentha kutentha, gululo silingalephereke, choncho matabwa a plywood sadzachotsa, kapena kugwa padera. Ichi ndi chofunika kwambiri kukonza ngati mukukumanga, nenani, chombo chokwanira ndi plywood.
Ngati chitetezo cha chitetezo chikuwonongeka ndipo nkhuni imakhala yonyowa, plywood idzakhala yosasinthika.
Plywood imakhala yotchuka
Mgwirizano wopanda madzi unakhazikitsidwa mu 1934, ndikukonza njira yopangira plywood ndi mphamvu zake. Mabwato ndi nyumba zawo m'kati mwa nkhondo yachiŵiri yapadziko lonse zinkapangidwa ndi plywood. Panthawi yomanga nkhondo, plywood inagwiritsidwa ntchito kumanga nyumba ndi mizinda kudutsa United States. Pofika chaka cha 1954, malondawa adakula kufika masiketi 101 ndipo ntchitoyi inkafika mamita 4 biliyoni, malinga ndi APA.
Plywood yabwino ndi yosiyana
Ngakhale mitengo ya plywood yotulutsidwa ndi malo osungirako zinthu zambiri ndi a A, BC ndi D (ndi A kukhala opambana), sali olemekezeka monga marine ndi mitundu ina ya plywood yolimba kwambiri . Plywood yapamwamba imapangidwa ndi zochepa, zigawo zowonjezera ndipo makamaka zimakhala ndi softwood, monga pine kapena Douglas fir. Zomwe zili mkati zimakhala ndi voids, kapena mabowo, zomwe simungakhoze kuziwona mpaka mutadula plywood panel. Plywood plywood ndi mtundu wa hardwood plywood. Chomera cholimba cha mtengo wolimba chimapangidwa ndi timitengo tating'onoting'ono tomwe timakhala tomwe timakhala kolimba kwambiri ndipo timakhala ndi tirigu wabwino kuposa softwood.
Plywood imagulitsidwa ngati "yopanda kanthu" ilibe voids yomwe imabisika m'nkhalango.
Pogwiritsa ntchito zigawozi, zigawo zochepa kwambiri ndi zabwino kusiyana ndi zigawo zazing'ono chifukwa zochepetsetsa zimakhala ndi mphamvu yowonjezera, yomwe ili ndi mapiri omwe akudulidwa ndi mchenga.
Madzi a Marine-Grade Plywood kwa Patio Furniture ndi Outdoor Structures
Odzidzidzidwa ndi-a-yourself-yourselfers ndi olemba mitengo amagwiritsa ntchito plywood pamadzi osiyanasiyana, kuphatikizapo:
- Zipinda zamaluwa, monga matebulo, mipando, ndi mabenchi
- Decking
- Mapiri
- Arbors
- Pergolas
- Mapulani