Kusankha zipangizo zoyenera ndizofunikira kuti zitsimikizire kukhazikika kwa nthawi yaitali ndikugwira ntchito kwa zingwe za kuwala. Zida zosiyanasiyana zimagwira ntchito mosiyanasiyana m'malo ovuta kwambiri - zida wamba zimatha kukhala zolimba komanso zosweka pakatentha pang'ono, pomwe kutentha kumatha kufewetsa kapena kupunduka.
M'munsimu muli zipangizo zingapo zomwe zimagwiritsidwa ntchito popanga chingwe cha kuwala, chilichonse chili ndi ubwino wake komanso ntchito zake zoyenera.
1. PBT (Polybutylene Terephthalate)
PBT ndiye chinthu chomwe chimagwiritsidwa ntchito kwambiri pamachubu otulutsa chingwe.
Kupyolera mu kusinthidwa - monga kuwonjezera magawo osinthika a maunyolo - kuwonongeka kwake kwa kutentha kochepa kumatha kuwongolera kwambiri, kukwaniritsa zofunikira -40 °C mosavuta.
Imasunganso kukhazikika kwambiri komanso kukhazikika kwapakatikati pa kutentha kwakukulu.
Ubwino wake: magwiridwe antchito, kutsika mtengo, komanso kugwiritsa ntchito mosiyanasiyana.
2. PP (Polypropylene)
PP imapereka mphamvu yotsika kwambiri yotentha, kuteteza kusweka ngakhale kumalo ozizira kwambiri.
Imaperekanso kukana kwa hydrolysis kuposa PBT. Komabe, modulus yake ndi yotsika pang'ono, ndipo kukhazikika kumakhala kofooka.
Kusankha pakati pa PBT ndi PP kumadalira kapangidwe ka chingwe ndi zosowa zake.
3. LSZH (Pafupifupi Utsi Wotsika Zero Halogen)
LSZH ndi imodzi mwazinthu zodziwika bwino za sheath zomwe zimagwiritsidwa ntchito masiku ano.
Ndi mapangidwe apamwamba a polima ndi zowonjezera zowonjezera, mankhwala apamwamba a LSZH amatha kukumana ndi -40 °C kutsika kwa kutentha kwa kutentha ndikuwonetsetsa kukhazikika kwa nthawi yaitali pa 85 °C.
Amakhala ndi mphamvu yochepetsetsa yamoto (yotulutsa utsi wochepa komanso wopanda mpweya wa halogen pakayaka), komanso kukana mwamphamvu kupsinjika ndi kuwonongeka kwa mankhwala.
Ndichisankho chomwe chimakonda pazingwe zosagwiritsa ntchito malawi komanso zoteteza chilengedwe.
4. TPU (Thermoplastic Polyurethane)
Wodziwika kuti "mfumu ya kuzizira ndi kuvala kukana," TPU sheathing material imakhalabe yosinthika ngakhale kutentha kwambiri pamene ikupereka ma abrasion apamwamba, mafuta, ndi misozi.
Ndi yabwino kwa zingwe zokoka, zingwe zamigodi, ndi zingwe zamagalimoto zomwe zimafuna kuyenda pafupipafupi kapena kupirira kuzizira koopsa.
Komabe, chidwi chiyenera kuperekedwa pakutentha kwambiri komanso kukana kwa hydrolysis, ndipo magiredi apamwamba amalimbikitsidwa.
5. PVC (Polyvinyl Chloride)
PVC ndi njira yachuma yopangira zingwe zowonera.
PVC yokhazikika imakonda kuumitsa ndikukhala brittle pansi -10 °C, kupangitsa kuti ikhale yosayenera kutentha kwambiri.
Zosagwira kuzizira kapena kutentha kwapang'onopang'ono kwa PVC kumapangitsa kusinthasintha powonjezera mapulasitiki ochulukirapo, koma izi zitha kuchepetsa mphamvu zamakina ndi kukana kukalamba.
PVC ikhoza kuganiziridwa pamene mtengo wamtengo wapatali ndi wofunika kwambiri ndipo zofunikira zodalirika za nthawi yayitali sizokwera.
Chidule
Chilichonse mwazinthu zopangira chingwechi chimapereka maubwino osiyanasiyana kutengera momwe amagwiritsira ntchito.
Popanga kapena kupanga zingwe, ndikofunikira kuganizira za chilengedwe, magwiridwe antchito, komanso zofunikira pa moyo wautumiki kuti musankhe zinthu zoyenera kwambiri.
Nthawi yotumiza: Oct-31-2025