Kodi mfundo ya thonje wokometsera mawu ndi yotani?

Zida zamayimbidwe zimatha kugawidwa m'mawu omvera komanso zotsekereza mawu molingana ndi ntchito zawo zosiyanasiyana.Cholinga chachikulu cha kuyamwa kwa mawu ndikuthetsa phokoso lomwe limabwera chifukwa cha kuwunikira kwa mawu.Zomwe zimakoka mawu zimatha kutsitsa mphamvu zowonekera za gwero lamawu, kuti zikwaniritse kukhulupirika kwa gwero la mawu oyambira.Kutsekemera kwamawu kumathetsa kufalikira kwa phokoso ndikupangitsa kuti thupi lalikulu likhale laphokoso mumlengalenga.Zida zotchingira mawu zimatha kuchepetsa mphamvu zomwe zimaperekedwa ndizomwe zikuchitika, kuti mukwaniritse malo opanda phokoso.

Thonje wosamva bwino komanso wosamva mawu ndi chinthu chotulutsa mawu.Kachipangizo kamene kamamva phokoso ndikuti pali tinthu tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tigwirizane ndi pores.M'mphepete mwa ma pores, mafunde amawu amatha kulowa mkati mwazinthuzo ndikupanga kukangana ndi zinthuzo kuti asinthe mphamvu yamawu kukhala mphamvu ya kutentha.Mawonekedwe a mayamwidwe amtundu wa porous phokoso amayamwa zida ndikuti phokoso la mayamwidwe limawonjezeka pang'onopang'ono ndi kuchuluka kwa ma frequency, zomwe zikutanthauza kuti kutsika kwapang'onopang'ono sikuli bwino ngati kuyamwa pafupipafupi.Zofunikira kuti mayamwidwe amvekedwe a zida za porous ndi: zinthuzo zimakhala ndi voids ambiri, ma voids amalumikizana, ndipo ma pores amalowa mkati mwazinthuzo.

Limodzi mwamalingaliro olakwika ndikuti zida zokhala ndi malo okhwima zimakhala ndi mphamvu zoyamwa, koma sizili choncho.Kusamvetsetsana kwachiwiri ndikuti zida zomwe zili ndi mabowo ambiri, monga polystyrene, polyethylene, polyurethane yotsekedwa, ndi zina zambiri, zimakhala ndi mayamwidwe abwino amawu.Kugwedezeka kwamkati kwazinthuzo, kotero kuti phokoso la mayamwidwe ndilochepa.