M'mamangidwe amakono, zokongoletsera pansi sizongokongoletsa zokhazokha, komanso zimakwaniritsa zofunikira zofunika kuchita. Monga mtundu watsopano wa zokongoletsera pansi, pansi pouningyane ali ndi luso labwino komanso kugwiritsa ntchito mitundu ingapo.
Nkhaniyi ikulonjezani ku mikhalidweyi, maubwino ndi malo ogwirira ntchito pansi pa polyirethane.
Choyamba, poureurethane pansi ndi chokhazikika komanso cholimba. Imagwiritsa ntchito polyurethane kukhala malo apansi ndipo imapangidwa kudzera mwapadera. Malire a Polyurethane ali ndi mwayi wotsutsana ndi mankhwala osokoneza bongo. Itha kukana kukokoloka kwa zinthu monga mafuta, acid ndi alkali, ndikusunga kukongola kwa nthawi yayitali pansi.
Nthawi yomweyo, polsurethane chimakhala ndi nkhawa kwambiri komanso kuvala kukana, kumatha kupirira kwambiri, sikukonda ming'alu ndi kuwonongeka kwa pansi.
Kachiwiri, mawaya a polyirethane ali ndi zotsutsana ndi zotetezeka komanso chitetezo. Pamtunda wa polyurethane amatengera chithandizo chapadera chotsutsana ndi Slip, chomwe chingapangitse kuti muchepetse kupewetsa ngozi ngati anthu akuyenda. Izi zimapangitsa kuti palyirethane zipinda zomwe zimagwiritsidwa ntchito kwambiri m'malo omwe amafunikira malo otsutsa-slip, monga malo owerengera mafakitale, midzi ya zipatala, zochitira masewera olimbitsa thupi, etc.
Kuphatikiza apo, poreurethane pansinso amakhalanso ndi thanzi. Imatengera njira yosungunulira, alibe zinthu zilizonse zovulaza, ndipo zilibe kuipitsa kapena kuvulaza thupi laumunthu ndi chilengedwe. Pakugwiritsa ntchito, polsurethane pansi sizingatulutse mpweya wovulaza monga formaldehyde, kuteteza bwino mpweya wabwino ndikukumana ndi chilengedwe choteteza nyumba zamakono. Zosowa zosiyanasiyana, pansi pa polyirethane zitha kusinthidwa malinga ndi momwe zinthu zilili. Itha kusankha mitundu yosiyanasiyana ndi zojambula kuti zikwaniritse zofuna zazodzikongoletsa.
Kumanga kwa polyirethane ndikosavuta komanso mwachangu, ndipo sikutanthauza chisamaliro cha nthawi yayitali, chomwe chimasunga nthawi ndi ndalama. Mwachidule, kulowa pansi pa polyirethane kwakhala chisankho chabwino chokongoletsera pansi pamalo amakono chifukwa cha kulimba kwake, kukhazikika kwa chilengedwe komanso chilengedwe. Kaya ndi fakitale, chipatala, Stadium kapena malo ogulitsira, malo ofikira polyirethane angakupatseni mayankho ogwira mtima pansi osakhalitsa komanso osakhalitsa.
Post Nthawi: Nov-24-2023