II. Mmene Mungapangire
Zipangizo
Kupanga kwa amwambo ayisikilimu chikhoimayamba ndikusankha kwa zipangizo. Timasankhachakudya chapamwamba kwambiripulasitiki kapena mapepala ngati zipangizo kuonetsetsa chitetezo cha mankhwala ndi kuteteza chilengedwe. Izi zopangira ndi mosamalitsa kufufuzidwa ndi kukumana zogwirizana dziko ndimiyezo yapadziko lonse lapansi, kuti makasitomala azisangalala ndi ayisikilimu okoma panthawi imodzimodzi, komanso khalani otsimikiza kuti angagwiritse ntchito.
The zopangira zikuchokeramakapu amapepala osindikizidwamakamaka zimakhudza akekukhalitsa ndi chitetezo. Mwachitsanzo, makapu ena amapepala amagwiritsira ntchito sera ya parafini ya chakudya monga chophikira, chomwe chimatchedwa kapu yopakidwa phula. Komabe, chifukwa phula losungunuka la parafini ndi lochepa, ndilosavuta kusungunuka m'madzi otentha, ndipo ndilosavuta kukhala lolimba komanso losasunthika pakatentha kwambiri, kotero kapu yopaka phula nthawi zambiri imakhala yoyenera ku zakumwa zoziziritsa kukhosi. Chikho chophimbidwa chimagwiritsa ntchito polyethylene (PE) monga chophimba, chifukwa cha kutentha kwamphamvu kwa polyethylene, kapu ya pepalayi ingagwiritsidwe ntchito kusunga zakumwa zotentha, komanso imatha kusunga zakumwa zozizira kapena ayisikilimu.
Kuphatikiza apo, zinthu za kapu ya pepala zidzakhudzanso zakeThermal insulation performance. Makapu a mapepala omwe amagwiritsidwa ntchito pa zakumwa zotentha nthawi zambiri amapangidwa ndi zinthu zolimba zamapepala zomwe zimapirira kutentha kwambiri ndipo zimatha kuwonjezeredwa ndi wosanjikiza wa emulsion kapena zokutira zina kuti zikhale bwino. Kapangidwe kameneka kamapangitsa kuti chidebecho chisaphwanyike kapena kuti chinyowe chikatenthedwa kwambiri, motero chimapangitsa kuti chakumwacho chizitentha komanso kuti chisapse.
Inmaonekedwe, zipangizo zosiyanasiyana zamakapu okonda ayisikilimunawonso ndi osiyana. Makapu okutidwa nthawi zambiri amakhala osalala, pomwe makapu opaka amatha kukhala osiyana pang'ono chifukwa cha kukhalapo kwa phula.
Zindikirani kuti ngakhale makapu amapepala awa amasiyana pazinthu, zonse ndi zinthu zotayidwa, zoyenera malo agulu, malo odyera, malo odyera ndi zochitika zina. Posankha azabwino ayisikilimu kapu, kuwonjezera pa kulingalira zakuthupi ndi ntchito zake, ziyeneranso kumvetsera zakewopanga ndi mankhwala khalidwekuonetsetsa kugula zinthu zotetezeka komanso zaukhondo.
