Plywood wani nau'in katako ne na mutum wanda aka sake haɗuwa da peeling.
Ana yin plywood ta hanyar yankan manyan veneers a cikin yankin zoben shekara-shekara. Bayan bushewa da haɗewa, ana samar da shi gwargwadon daidaitaccen haɓakar hatsin mahogany na veneers da ke dab da ita.
Yawan katunan allon galibi yawan lambobi ne masu ban mamaki, yawanci sau uku zuwa goma sha uku, kuma yawan adadin layukan gaba ɗaya gaba ɗaya ya kasance uku, yadudduka biyar, yadudduka tara, da yadudduka 13 (ana kiran kasuwar tallace-tallace uku plywood, biyar plywood, tara tara, santimita goma sha uku). Ana kiran veneer na gaba na layin da ke waje fuskar baya, bayan kuma ana kiran shi bangon baya, sannan kuma ana kiran layin da ke ciki babban allon.
Nau'in plywood na 1 yana da fa'idodi na juriya yanayin, tafasasshen ruwa, karko, juriya mai zafin jiki, da juriya na tururi.
Wadannan nau'ikan plywood guda 2 sune plywood masu ruwa, wanda za'a iya jika su cikin ruwan sanyi da ruwan zafi a cikin kankanin lokaci.
Nau'in plywood na 3 shine plywood mai hana ruwa, wanda za'a iya nutsar dashi cikin ruwan sanyi na ɗan gajeren lokaci, wanda ya dace da yanayin zafin cikin cikin ɗaki. Kayayyaki da kayan aikin gama gari;
Nau'in plywood na 4 shine plywood mai jure danshi, wanda aka saba amfani dashi a gida. Plywood da aka saba amfani da shi ya haɗa da birch, eucalyptus, da poplar.
Plywood galibi ana amfani dashi a cikin yanayin waje, kamar ginin ado na waje da kuma aikin siminti. A cikin kayan kwalliya, galibi ana amfani dashi a cikin rufi, siket ɗin bango, da layin ƙasa.
Babban abun da ke ciki na plywood
Don inganta anisotropy na katako na halitta gwargwadon iko, plywood yana da halaye iri ɗaya da tsayayyen fasali. Gabaɗaya, plywood dole ne ya bi ka'idoji biyu na tsari: ɗayan ya daidaita; ɗayan kuma shine cewa zaren zaren allo guda ɗaya masu haɗuwa da juna.
Ka'idar daidaito ita ce ana bukatar plywood a bangarorin biyu na tsakiyar jirgin wanda ya dace da plywood, ba tare da la'akari da yanayin itacen ba, kaurin plywood, yawan adadin layuka, alkiblar zare, da kuma laima abun ciki yakamata ya zama yana daidaita juna.
A cikin plywood guda, ana iya amfani da bishiyoyi guda ɗaya da veneers na kauri, ko za a iya amfani da veneers na jinsin bishiyoyi da kauri; duk da haka, kowane layin biyu na bishiyoyin veneer masu daidaita juna da kauri a bangarorin biyu na cibiyar jirgin samanta iri daya ne.
Don yin fasalin plywood ya haɗu da ƙa'idodi biyu na sama, yawan matakan yakamata ya zama mara kyau.
Sabili da haka, plywood yawanci ana raba shi zuwa matakai uku, yadudduka biyar, yadudduka bakwai da sauran yadudduka marasa kyau.
Sunan plywood layer shine: veneer na farfajiya ake kira tebur, veneer na ciki ana kiransa ainihin hukumar; na gaba ana kiransa panel, sannan na bayan baya kuma ana kiransa bayanan baya; a cikin jirgi mai mahimmanci, shugabancin fiber yana a layi ɗaya da panel.
Ana kiran shi babban jirgi mai tsayi ko tsakiyar-allon.
Amfanin plywood
Abubuwan fa'idar plywood suna da ƙarfin ɗaukar nauyi, ba mai sauƙin canzawa da lanƙwasawa ba, ba saukin fasawa, da ƙara haɓaka. Jirgin Multilayer yana da kyakkyawan ikon daidaitawa da zafin jiki na cikin gida da zafi. Launin farfajiya na allon multilayer itace na halitta. Hatsi na katako ya fi kusa da yanayi kuma tsarinta babba ne. Fa'idodin allon bangarori masu sauƙin shimfiɗa. Idan aka kwatanta da katako mai ɗorewa, allon mai ɗauke da layuka yana kauce wa wasu lahani na halitta na katako na halitta, kamar suutarwa, faɗi, nakasawa, da ƙarancin matse matsi.
Hakanan allon Layer masu yawa suna da babban fa'ida akan katako na halitta a farashin. Tunda allon masu launi da yawa sun sake yin nazari da sake tsara rajistan ayyukan, sun fi tattalin arziƙi fiye da allon katako mai tsada.
Rashin dacewar hukumar multilayer
Ana yin katako mai ɗumbin yawa daga katako na katako na asali ta hanyar zazzabi mai ƙarfi da matsin lamba mai ƙarfi a cikin matattarar zafi tare da mannewa. Sabili da haka, dangane da kare muhalli, za a sami wasu fitowar formaldehyde. Amma shine mafi kusa da itace na halitta kuma shine mafi kyawun kula da muhalli.
Gano mai kyau ko mara kyau plywood
Na farko, kalli flatness na panel. Daga wannan gaba, zamu iya ganin kayan ciki na allon. Idan muka kalli allon, zamu iya taɓa shi da hannayenmu kuma mu ji ko akwai wani rashin daidaito. Idan akwai, yana nufin cewa shimfiɗa ƙasa ba kyau.
Ko dai yana nufin cewa ainihin kayan aikin jirgi basu da kyau kuma kayan sun ɗan lalace. A takaice, ba a ba da shawarar siyan mara daidai ba.
Na biyu, kiyaye ma'anar matsayi na kwamiti na multilayer. Girman katakon, mafi sauƙin shine ganin yadda ake haɗa allon mai ɗauka da yawa. Idan kowane Layer anyi shi ne daga kayan abu guda daya, to yadudduka zasu kasance a bayyane kuma babu wani abin da zai faru game da giciye. Idan kayan basuyi kyau ba, akwai tarkace da yawa.
Saboda tasirin matsi, matakin zai zama mafi muni bayan matse juna.
Post lokaci: Dec-02-2020