Ipulangwe luhlobo lwebhodi lezinkuni elenziwe ngabantu elihlanganiswa kabusha ngokuxebuka.
I-plywood yenziwa ngokusika ezindaweni ezibonakalayo ezinkulu ekuqondiseni amasongo wonyaka. Ngemuva kokumiswa nokubopha, kukhiqizwa ngokuya ngesilinganiso sokuma okusanhlamvu okuma mpo kwama-mahogany ama-veneers aseduze.
Inani lamabhodi angumgogodla imvamisa linani lezingqimba ezingejwayelekile, imvamisa izendlalelo ezintathu kuya kweziyishumi nantathu, futhi inani elijwayelekile lezendlalelo ngokuvamile liyizendlalelo ezintathu, izingqimba ezinhlanu, izendlalelo eziyisishiyagalolunye, nezendlalelo eziyi-13 (imakethe yokuthengisa ngokuvamile ibizwa ngokuthi ipulangwe ezintathu, ezinhlanu ipulangwe, ipulangwe lesishiyagalolunye, amasentimitha ayishumi nantathu). Isibonisi esingaphambili sesendlalelo sangaphandle sibizwa ngephaneli langaphambili, ngemuva kuthiwa yiphaneli engemuva, kanti ungqimba lwangaphakathi lubizwa ngokuthi ibhodi eliwumgogodla.
Thayipha i-plywood engu-1 inezinzuzo zokumelana nesimo sezulu, ukumelana namanzi abilayo, ukuqina, ukumelana nokushisa okuphezulu, nokumelana nomusi.
Lezi zinhlobo ezi-2 zamapulangwe ziyipulangwe elingenamanzi, elingafakwa emanzini abandayo namanzi ashisayo ngesikhathi esifushane.
Uhlobo lwe-plywood lwesi-3 luyipulangwe elingenamanzi, elingacwiliswa emanzini abandayo isikhathi esifushane, esifanele ukushisa kwangaphakathi endlini. Ifenisha nezinjongo zokwakha jikelele;
Uhlobo lweplywood elingu-4 yipulangwe elingamelana nomswakama, elisetshenziswa kakhulu ezindlini. I-plywood evame ukusetshenziswa ifaka i-birch, u-eucalyptus, ne-poplar.
Ipulangwe lisetshenziswa kakhulu ezimweni ezingaphandle, njengokwakha umhlobiso wangaphandle nefomu kakhonkolo. Ekuhlobiseni, isetshenziswa kakhulu ophahleni, iziketi zodonga, nasemigqeni yaphansi.
Ukwakheka okuyisisekelo kweplywood
Ukuze uthuthukise i-anisotropy yezinkuni zemvelo ngangokunokwenzeka, i-plywood inezici ezifanayo nokuma okuzinzile. Ngokuvamile, i-plywood kufanele ilandele imigomo emibili eyisisekelo ekwakhiweni: eyodwa iyalingana; okunye ukuthi imicu ye-single-board optical eseduze icacile komunye nomunye.
Umgomo wokulinganisa ukuthi ipulangwe liyadingeka ezinhlangothini zombili zendiza yokulinganisa kweplywood, ngaphandle kohlobo lwenkuni, ubukhulu beplywood, inani lezendlalelo, ukuqondiswa kwefayibha nomswakama okuqukethwe kufanele kube okuhambisanayo komunye nomunye.
E-plywood efanayo, kungasetshenziswa izihlahla ezilodwa nezindwangu zokujiya, noma ama-veneers ezinhlobonhlobo zezihlahla nobukhulu angasetshenziswa; kodwa-ke, noma yiziphi izingqimba ezimbili zezihlahla ze-veneer ezihambisanayo nobukhulu ezinhlangothini zombili zendiza yesikhungo sokulinganisa ziyafana.
Ukuze wenze ukwakheka kwepulangwe kuhlangabezane nalezi zimiso ezimbili eziyisisekelo ezingenhla, inani lezendlalelo kufanele lingajwayelekile.
Ngakho-ke, i-plywood ivame ukuhlukaniswa izendlalelo ezintathu, izingqimba ezinhlanu, izingqimba eziyisikhombisa nezinye izingqimba ezingajwayelekile.
Igama lesendlalelo se-plywood lithi: i-veneer ebusweni ibizwa ngokuthi itafula, i-veneer yangaphakathi ibizwa ngokuthi ibhodi eliyinhloko; iphaneli langaphambili libizwa ngephaneli, kuthi elingemuva libizwe ngephaneli elingemuva; ebhodini lomgogodla, ukuqondiswa kwe-fiber kuyafana kuphaneli.
Ibizwa ngokuthi ibhodi elide lomgogodla noma ibhodi maphakathi.
Izinzuzo zeplywood
Izinzuzo zeplywood zinamandla wokuthwala aqinile, akulula ukukhubazeka nokugoba, akulula ukuqhekeka, nokwandiswa okuncane. Ibhodi leMultilayer inekhono elihle lokuzivumelanisa nokushisa kwangaphakathi nomswakama. Ingqimba engaphezulu yebhodi le-multilayer yizinkuni zemvelo. Izinhlamvu zezinkuni zisondele kakhulu emvelweni futhi ifomethi inkulu. Izinzuzo zamabhodi anezendlalelo eziningi kulula ukuwakha. Uma kuqhathaniswa nokhuni oluqinile lokhuni, ibhodi enezendlalelo eziningi igwema ukukhubazeka okuthile okungokwemvelo kokhuni lwemvelo, njengamalimi, ububanzi, ukusonteka, nokumelana okuncane kokucindezelwa.
Amabhodi anezendlalelo eziningi nawo anenzuzo enkulu kunokhuni lwemvelo ngentengo. Njengoba amabhodi anezendlalelo eziningi ehlaziya futhi ahlela kabusha izingodo, ayonga kakhulu kunamabhodi wezinkuni aqinile abizayo.
Okubi kwebhodi le-multilayer
Ibhodi elinezendlalelo eziningi lenziwe ngamabhodi wemvelo wezinkuni zemvelo ngokushisa okuphezulu nokucindezela okuphezulu ngokucindezela okushisayo okunamathelayo. Ngakho-ke, maqondana nokuvikelwa kwemvelo, kuzoba khona ukukhishwa kwe-formaldehyde. Kepha lisondele kakhulu ngokhuni lwemvelo futhi liyibhodi lokufakelwa elinobungani kakhulu nemvelo.
Ukuhlonza ipulangwe elihle noma elibi
Okokuqala, bheka ubukhulu bephaneli. Ukusuka kuleli phuzu, singabona izinto zangaphakathi zebhodi. Lapho sibheka ibhodi, singalithinta ngezandla zethu futhi sizwe ukuthi kukhona yini ukungalingani. Uma kukhona, kusho ukuthi isihlabathi esingaphezulu asisihle.
Kuphakathi kokuthi kusho ukuthi impahla yebhodi eyinhloko ayiyinhle futhi okokusebenza kuphukile. Ngamafuphi, akunconywa ukuthenga okungalingani.
Okwesibili, gcina umuzwa wobukhosi obuphezulu webhodi le-multilayer. I-thicker ibhodi, kulula kakhulu ukubona ukubeka kwebhodi lezendlalelo eziningi. Uma ungqimba ngalunye lwenziwe ngezinto ze-monolithic, izingqimba zizocaca kakhulu futhi ngeke kube khona mkhuba owehlayo. Uma ukwaziswa kungalungile, kunezinsalela eziningi.
Ngenxa yomphumela wengcindezi, izinga lizoba libi kakhulu ngemuva kokukhama.
Isikhathi Iposi: Dec-02-2020