Kusankha zipangizo zoyenera n'kofunika kwambiri kuti zingwe zamagetsi zizikhala zokhazikika komanso zogwira ntchito kwa nthawi yayitali. Zipangizo zosiyanasiyana zimachita zinthu mosiyana pakakhala nyengo yovuta kwambiri — zipangizo wamba zimatha kusweka ndi kusweka pakakhala kutentha kochepa, pomwe kutentha kwambiri kumatha kufewa kapena kusokonekera.
Pansipa pali zinthu zingapo zomwe zimagwiritsidwa ntchito kwambiri popanga chingwe cha kuwala, chilichonse chili ndi ubwino wake komanso ntchito zake zoyenera.
1. PBT (Polybutylene Terephthalate)
PBT ndiye chinthu chomwe chimagwiritsidwa ntchito kwambiri popanga machubu otayirira a chingwe cha optical.
Kupyolera mu kusintha — monga kuwonjezera magawo osinthasintha a unyolo — kufooka kwake kotsika kutentha kumatha kukonzedwa bwino, zomwe zimakwaniritsa mosavuta zofunikira za -40 °C.
Imasunganso kulimba bwino komanso kukhazikika bwino pa kutentha kwambiri.
Ubwino: magwiridwe antchito abwino, kugwiritsa ntchito bwino ndalama, komanso kugwiritsidwa ntchito bwino kwambiri.
2. PP (Polypropylene)
PP imapereka kulimba kwabwino kwambiri kutentha kochepa, kuteteza ming'alu ngakhale m'malo ozizira kwambiri.
Imaperekanso kukana bwino kwa hydrolysis kuposa PBT. Komabe, modulus yake ndi yotsika pang'ono, ndipo kulimba kwake ndi kofooka.
Kusankha pakati pa PBT ndi PP kumadalira kapangidwe ka chingwecho komanso momwe chikugwirira ntchito.
3. LSZH (Chosakaniza Chopanda Halogen Chotsika)
LSZH ndi chimodzi mwa zipangizo zodziwika kwambiri zomwe zimagwiritsidwa ntchito masiku ano.
Ndi ma polymer apamwamba komanso zowonjezera zogwirizana, mankhwala apamwamba a LSZH amatha kukwaniritsa mayeso otsika kutentha kwa -40 °C ndikutsimikizira kukhazikika kwa nthawi yayitali pa 85 °C.
Amakhala ndi mphamvu yabwino kwambiri yoletsa moto (imapanga utsi wochepa komanso mpweya wa halogen ukayaka), komanso amalimbana kwambiri ndi ming'alu yamphamvu komanso dzimbiri la mankhwala.
Ndi chisankho chabwino kwambiri pa zingwe zoteteza moto komanso zosawononga chilengedwe.
4. TPU (Thermoplastic Polyurethane)
Chodziwika kuti ndi "mfumu ya kuzizira ndi kukana kuvala," TPU sheathing sheathing imakhala yosinthasintha ngakhale kutentha kochepa kwambiri pomwe imapereka kukana kwabwino kwambiri kwa kukanda, mafuta, ndi kung'ambika.
Ndi yabwino kwambiri pa zingwe zokoka, zingwe zogwirira ntchito m'migodi, ndi zingwe zamagalimoto zomwe zimafuna kusunthidwa pafupipafupi kapena ziyenera kupirira malo ozizira kwambiri.
Komabe, chisamaliro chiyenera kuperekedwa ku kukana kutentha kwambiri ndi hydrolysis, ndipo magiredi apamwamba amalimbikitsidwa.
5. PVC (Polyvinyl Chloride)
PVC ndi njira yotsika mtengo yopangira ma sheath a chingwe cha kuwala.
PVC yokhazikika imakhala yolimba komanso yofooka pansi pa -10 °C, zomwe zimapangitsa kuti isagwiritsidwe ntchito kutentha kwambiri.
Mafomula a PVC osazizira kapena otentha kwambiri amawonjezera kusinthasintha mwa kuwonjezera ma plasticizer ambiri, koma izi zitha kuchepetsa mphamvu ya makina ndi kukana kukalamba.
PVC ingaganizidwe ngati kugwiritsa ntchito bwino ndalama ndikofunikira kwambiri ndipo kudalirika kwa nthawi yayitali sikuli kwakukulu.
Chidule
Chilichonse mwa zipangizozi za chingwe chowunikira chimapereka ubwino wosiyana kutengera momwe chikugwiritsidwira ntchito.
Popanga kapena kupanga zingwe, ndikofunikira kuganizira momwe zinthu zilili, momwe makina amagwirira ntchito, komanso nthawi yomwe ntchitoyo ikufunika kuti musankhe zinthu zoyenera kwambiri.
Nthawi yotumizira: Okutobala-31-2025