Kodi pansi pa pulasitiki ya PVC ndi chiyani? Kodi makhalidwe ake ndi otani?
Pambuyo pa zaka makumi ambiri za kupangidwa kuyambira m'ma 1980 mpaka pano, pansi pa PVC yakhala ikugwiritsidwa ntchito kwambiri padziko lonse lapansi, makamaka m'malo opezeka anthu ambiri monga zipatala, mafakitale, masukulu, mabwalo amasewera, ndi mabizinesi. Ndiye PVC ndi chiyani? Pansi pa PulasitikiKodi makhalidwe ake ndi otani? Ndiloleni ndikufotokozereni chimodzi ndi chimodzi
Pansi pa pulasitiki ya PVC ndi pansi lopangidwa ndi zinthu za polyvinyl chloride (PVC). Limagawidwa m'magulu awiri: pansi lopangidwa ndi composite ndi pansi lowonekera bwino la PVC:
Pansi pa PVC: Pansi pa PVC pamatanthauza kuti limapangidwa ndi zinthu zokhala ndi zigawo zambiri, nthawi zambiri zimakhala ndi zigawo 4-5 za kapangidwe kake. Pambuyo pa chithandizo chaukadaulo, limakhala ndi mphamvu zotsutsana ndi madontho, kukana asidi ndi alkali, kukana kufalikira, komanso kuyeretsa mosavuta ndi zina zotero. Likhozanso kukhala ndi mitundu iwiri monga pansi pamatabwa, matailosi a ceramic ndi zotsatira zina za substrate, yokhala ndi mitundu yosiyanasiyana komanso mawonekedwe abwino, kufananiza kumakhala kosinthasintha.
Pansi pa PVC yowonekera bwino: Mtundu wofanana, kaya ndi coil kapena pepala, ndi mtundu womwewo wa zinthu kuyambira pamwamba mpaka pansi. Poyamba unapangidwa ndi tinthu ta PVC tating'onoting'ono, uli ndi pulasitiki yochepa, ndipo ndi wochezeka kwambiri kuposa mtundu wophatikizika. Chifukwa cha kufanana konse, zimakhala zovuta kuzindikira kuwonongeka pang'ono. Nthawi yomweyo, phazi limakhala lofewa ndipo limayamwa bwino mawu. Komabe, gawo la pamwamba la mtundu wofanana silikhala ndi gawo lolimba kwambiri losawonongeka ndipo lili ndi kukana koipa kwa madontho, zomwe zimafuna kusamalidwa nthawi zonse ndi makina ochapira.
Gawo lalikulu la pansi la Hongsheng ndi pulasitiki ndi lopanda chilengedwe komanso losawononga zinthu zina, ndipo pansi la PVC ndi lopepuka, nthawi zambiri limafika 2 ~ 3mm yokha, ndipo kulemera kwake ndi 1% yokha ya zinthu zokongoletsa pansi zachikhalidwe. Chigawo chosalowa madzi, chomwe chimateteza madzi, chimaposa kwambiri zinthu zina zapansi. Chili ndi chophimba cholimba chomwe sichimatentha, chomwe chimateteza kutentha kwambiri, chimateteza asidi ndi alkali, chimateteza bwino kutayika komwe kumachitika chifukwa cha kuwonongeka ndi dzimbiri, chimakhala ndi moyo wautali, komanso chimachepetsa mtengo woyeretsa ndi kukonza tsiku ndi tsiku. Mphamvu yoyamwa mawu ndi yodalirika kwambiri. Imatha kuletsa phokoso la 15dB-19dB, kuchepetsa phokoso lomwe limayambitsidwa ndi zinthu zomwe zikugwa kapena kuthamanga, komanso kuthandiza kupanga malo abata mkati.
Ponena za zomangamanga ndi kukhazikitsa, pansi pa pulasitiki ya PVC singathe kulumikizidwa bwino ndi matope wamba a simenti, ndipo imafuna zomatira zapadera ndi ukadaulo wopondaponda. Kapangidwe kake kalibe fumbi, njira yoyikira ndi yosavuta komanso yachangu, ndipo sidzayambitsa kuipitsa kwina.
