Monga tonse tikudziwira, zinthu monga siponji, pulasitiki ya thovu, mphira ndi nkhuni nthawi zambiri zimasankhidwa ngati zida zomangira komanso zotsutsana ndi kugundana m'moyo weniweni. Monga chimodzi mwazinthu zazitsulo zokhala ndi porous, ubwino wa kuyamwa kwake ndi kusungitsa mphamvu ndi chiyani?

M'mawu a layman, chilichonse chotengera mphamvu komanso chosungira chimakhala ndi nsonga yake yonyamula katundu. Chigawo cha unit chikapitilira kukakamiza kwina, mphamvu yotengera mphamvu ndi kutsekereza idzatayika. Choncho, masiponji, thovu mapulasitiki, mphira, thobvu zotayidwa thobvu, etc. Kupanikizika osiyanasiyana panopa ndi yabwino kwambiri ndi ambiri ntchito mphamvu absorbing zakuthupi.

Monga chitsulo chowala kwambiri chomwe chimatha kuyandama pamadzi, chithovu cha aluminiyamu chimakhala ndi makulidwe a 0.2-0.4g/cm³, omwe ndi pafupifupi 1/30 ya kusalimba kwachitsulo; komabe, kuuma kwake kopindika ndi 1.5 kuchulukitsa kwachitsulo; pansi pa kulemera komweko, Mphamvu yopondereza ndi nthawi 5 yachitsulo; nthawi yomweyo, kunyowetsa kwa aluminiyumu ya thovu ndi nthawi 5-10 kuposa chitsulo, ndipo aluminiyumu ya thovu yokhala ndi porosity yopitilira 80% imatha kuyamwa 20J/cm³ yamphamvu ikapunduka ndi 50%, yomwe ndi yabwino kwambiri. . Zinthu zowononga mantha.