Pamene zofunikira pa chitetezo cha moto zikupitirira kukwera m'machitidwe oyendera sitima, malo osungira deta, nyumba zazitali, zipatala, ndi mapulojekiti a mphamvu zongowonjezwdwanso, zingwe za Low Smoke Zero Halogen (LSZH) zikukhala chisankho chomwe chimakonda kwambiri pazinthu zambiri zofunika. Kwa opanga zingwe, LSZH si gulu la zinthu zokha—imayimira njira yosiyana kwambiri yaukadaulo poyerekeza ndi mankhwala achikhalidwe a PVC.
Kodi Zinthu za LSZH N'chiyani?
LSZH (Utsi Wochepa Zero Halogen), yomwe imadziwikanso kuti Low Smoke Halogen Free (LSHF), imatanthauza gulu la zipangizo zoteteza moto zomwe siziwononga chilengedwe zomwe zimagwiritsidwa ntchito poteteza ndi kuphimba mawaya. Mu makampani opanga mawaya, zinthuzi nthawi zambiri zimagawidwa m'magulu a HFFR (Halogen Free Flame Retardant).
Ma LSZH nthawi zambiri amachokera ku ma polyolefin resins monga polyethylene (PE) ndi ethylene-vinyl acetate (EVA). Amapangidwa ndi ma halogen-free flame retardants, kuphatikizapo aluminium hydroxide (ATH) ndi magnesium hydroxide (MDH), pamodzi ndi ma antioxidants, mafuta odzola, ndi zinthu zothandizira kukonza. Mosiyana ndi ma PVC compounds, zinthu za LSZH zilibe chlorine, bromine, kapena zinthu zina za halogen.
Poyerekeza ndi zinthu za PVC zomwe zimagwiritsidwa ntchito pa chingwe, zipangizo za LSZH zimatha kusunga kutentha kwa magetsi komanso mphamvu zamakanika bwino komanso kuchepetsa kwambiri kupanga utsi ndi mpweya wowononga panthawi yoyaka. Chifukwa chake, zimagwiritsidwa ntchito kwambiri pakugwiritsa ntchito chingwe komwe chitetezo cha moto ndi chofunikira kwambiri.
Kodi pali kusiyana kotani pakati pa LSZH ndi PVC?
Polyvinyl chloride (PVC) ikadali imodzi mwa zipangizo zogwiritsidwa ntchito kwambiri chifukwa cha ukadaulo wake wokonza zinthu, kugwiritsa ntchito bwino ndalama, komanso magwiridwe antchito abwino. Imagwiritsidwa ntchito kwambiri popanga mawaya, mawaya amagetsi, komanso kugwiritsa ntchito mawaya amafakitale.
Mosiyana ndi zimenezi, zipangizo za LSZH zimachokera ku machitidwe a polyolefin ndipo zimalepheretsa moto kudzera mu zinthu zoletsa moto zomwe sizili zachilengedwe m'malo mwa zowonjezera zomwe zili ndi halogen. Kusiyana kwakukulu pakati pa ziwirizi kumaonekera bwino pakayaka moto.
PVC ikhoza kutulutsa utsi wambiri ndi mpweya wowononga wokhala ndi chlorine ikawotchedwa. Zipangizo za LSZH, kumbali ina, zimatulutsa utsi wochepa kwambiri ndipo sizitulutsa mpweya wambiri wa halogen acid. Izi zimathandiza kuti ziwonekere bwino panthawi yochoka komanso zimachepetsa kuwonongeka kwa zida zamagetsi ndi zamagetsi.
Kuphatikiza apo, zipangizo za LSZH zimagwirizana bwino ndi zofunikira zachitetezo ndi zachilengedwe zamapulojekiti amakono, kuphatikizapo njira zoyendera sitima, malo osungira deta, ma eyapoti, zipatala, ndi nyumba za anthu onse. PVC ikadali ndi ubwino pankhani ya mtengo ndi magwiridwe antchito, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'njira zambiri.
Kuchokera pamalingaliro oletsa kutentha, mankhwala a LSZH amatha kupangidwa kuti akwaniritse kutentha kwa 70°C, 90°C, 105°C, komanso kupitirira apo, kutengera zomwe zimagwiritsidwa ntchito. Mankhwala achikhalidwe a PVC nthawi zambiri amagwiritsidwa ntchito pazinthu za chingwe zomwe zimayesedwa pa 70°C kapena 90°C. Zotsatira zake, zipangizo za LSZH zikukondedwa kwambiri mu ntchito zomwe zimafuna chitetezo chowonjezereka komanso kutentha kwakukulu.
Ndi Miyezo Iti Yomwe Zipangizo za LSZH Ziyenera Kukwaniritsa?
Zipangizo zenizeni za LSZH ziyenera kutsatira miyezo yovomerezeka yamakampani ndi zofunikira pakuyesa.
Pa ntchito yopanda halogen, IEC 60754-1 ndi IEC 60754-2 nthawi zambiri zimatchulidwa kuti ziwunikire kuchuluka kwa mpweya wa halogen acid womwe umatulutsidwa panthawi yoyaka, komanso acidity ndi conductivity ya mpweya woyaka. IEC 60754-2 imati pH ya mpweya woyaka iyenera kukhala yosachepera 4.3 ndipo conductivity yake isapitirire 10 μS/mm.
Kuti utsi ukhale wochepa, mndandanda wa IEC 61034 umayesa kuchuluka kwa utsi kudzera mu kuyesa kutumiza kuwala.
Kuphatikiza apo, magwiridwe antchito oletsa moto nthawi zambiri amawunikidwa malinga ndi miyezo ya IEC 60332 ndi GB/T 18380, pomwe GB/T 19666 imatchula zofunikira pa zingwe zoletsa moto komanso zosagwira moto.
Pamisika yotumiza kunja ndi mapulojekiti apadziko lonse lapansi, zipangizo za chingwe nthawi zambiri zimafunikira kuti zitsatire malamulo azachilengedwe monga RoHS ndi REACH.
Nchifukwa chiyani mapulojekiti ambiri akusankha zingwe za LSZH?
Kugwiritsidwa ntchito kwa zingwe za LSZH kukuchulukirachulukira chifukwa cha kufunika koteteza moto, kuteteza chilengedwe, komanso kuteteza katundu.
Ubwino waukulu ndi monga:
Chepetsani kupanga utsi panthawi ya moto, zomwe zimathandiza kuti anthu azitha kutuluka m'nyumba zawo komanso kuti azitha kuyankha mwachangu.
Kuchepetsa kutulutsa mpweya wowononga, zomwe zimathandiza kuteteza njira zolumikizirana, zomangamanga zamagetsi, zida zosungira deta, ndi zida zina zamagetsi zodziwika bwino.
Kutsatira malamulo okhwima okhudza chilengedwe komanso zofunikira pa polojekitiyi.
Kuyenerera kugwiritsa ntchito zinthu zotetezeka kwambiri monga mayendedwe a sitima, malo osungira deta, ma eyapoti, zipatala, makina a photovoltaic, magalimoto amagetsi, ndi malo akuluakulu aboma.
Nthawi yomweyo, kupita patsogolo kosalekeza muukadaulo wazinthu kwasintha kwambiri mawonekedwe a makina, magwiridwe antchito a kutentha, mawonekedwe a kukonza, komanso kudalirika kwa nthawi yayitali kwa zinthu zamakono zotetezera kutentha ndi zophimba, zomwe zakulitsa ntchito zawo zosiyanasiyana.
Mayankho a Zinthu Zachingwe za ONE WORLD LSZH
Monga katswiri wopanga zida za chingwe,DZIKO LIMODZIKampani yathu imagwira ntchito yofufuza, kupanga, kupanga, ndi kuthandizira paukadaulo wa zipangizo za chingwe. Zogulitsa zathu zikuphatikizapo LSZH Sheathing Compounds, LSZH Insulation Compounds, HFFR Compounds, Cross-Linked Polyolefin (XLPO) Compounds, ndi PVC Cable Compounds.
Zipangizozi zimagwiritsidwa ntchito kwambiri mu zingwe zamagetsi, zingwe zolumikizirana, zingwe zoyendera njanji, zingwe zapakati pa data, zingwe za photovoltaic, zingwe zamagalimoto zamagetsi, ndi zina zapadera za zingwe.
Mwa kupitiliza kukonza magwiridwe antchito a zinthu ndi mawonekedwe ake, ONE WORLD yadzipereka kupatsa opanga mawaya mayankho odalirika azinthu, komanso chithandizo chaukadaulo chomwe chimakhudza kusankha zinthu, kuwunika zitsanzo, ndi kukhazikitsa kupanga zinthu zambiri.
Mapeto
Pamene zofunikira zachitetezo zikupitirira kukwera m'magalimoto a sitima, malo osungira deta, mphamvu zongowonjezwdwanso, makina osungira mphamvu, ndi mapulojekiti a zomangamanga za anthu onse, zipangizo za LSZH zikukhala chimodzi mwa zinthu zofunika kwambiri pakukula kwa makampani opanga mawaya.
Poyerekeza ndi mankhwala achikhalidwe a PVC, zipangizo za LSZH zimapereka ubwino waukulu pankhani ya utsi wochepa, magwiridwe antchito opanda halogen, kutsata malamulo a chilengedwe, komanso kuteteza zida. Chifukwa chake, zikuchulukirachulukira kukhala chisankho chomwe chimakondedwa kwambiri pakugwiritsa ntchito chingwe chotetezeka kwambiri.
Ndi kusintha kwa miyezo yamakampani komanso kufunikira kwa msika komwe kukukula, kugwiritsa ntchito zipangizo za LSZH zikuyembekezeka kupitilira kukula. ONE WORLD ipitilizabe kudzipereka pakupanga ndi kupanga zipangizo za chingwe zogwira ntchito bwino, kupereka mayankho odalirika azinthu komanso chithandizo chaukadaulo kwa opanga zingwe padziko lonse lapansi.
Nthawi yotumizira: Juni-25-2026