(1)Utsi Wopatsirana Wopanda Zero Halogen Polyethylene (XLPE) Insulation Material:
Zida zotsekemera za XLPE zimapangidwa ndi kuphatikiza polyethylene (PE) ndi ethylene vinyl acetate (EVA) monga maziko a matrix, pamodzi ndi zowonjezera zosiyanasiyana monga ma halogen-free flame retardants, lubricant, antioxidants, ndi zina zotero, kupyolera mu njira yowonjezera komanso yowonjezera. Pambuyo pokonza kuwala, PE imasintha kuchoka pamtundu wa ma molekyulu kukhala amitundu itatu, kusintha kuchokera ku zinthu za thermoplastic kupita ku pulasitiki yosasungunuka ya thermosetting.
Zingwe zotchinjiriza za XLPE zili ndi zabwino zingapo poyerekeza ndi PE wamba ya thermoplastic:
1. Kupititsa patsogolo kukana kwa kutentha kwa kutentha, kupititsa patsogolo makina pa kutentha kwakukulu, komanso kukana kusokonezeka kwa chilengedwe ndi kukalamba kwa kutentha.
2. Kupititsa patsogolo kukhazikika kwa mankhwala ndi kukana zosungunulira, kuchepetsa kuzizira kozizira, ndi kusunga mphamvu zamagetsi. Kutentha kwa nthawi yayitali kumatha kufika 125 ° C mpaka 150 ° C. Pambuyo polumikizirana, kutentha kwafupipafupi kwa PE kumatha kuonjezedwa mpaka 250 ° C, zomwe zimapangitsa kuti pakhale kunyamula kwamphamvu kwambiri kwa zingwe za makulidwe omwewo.
3. Zingwe za XLPE-insulated zimawonetsanso zinthu zabwino kwambiri zamakina, zoteteza madzi, komanso zosagwira ma radiation, zomwe zimawapangitsa kukhala oyenera kugwiritsa ntchito zinthu zosiyanasiyana, monga mawaya amkati pazida zamagetsi, zowongolera zamagalimoto, zowongolera zowunikira, mawaya owongolera ma siginolo amagetsi otsika kwambiri, mawaya a locomotive. , zingwe zapansi panthaka, zingwe zamigodi zomwe siziteteza chilengedwe, zingwe za sitima zapamadzi, zingwe za 1E-grade zopangira magetsi a nyukiliya, zingwe zapampu zokhala pansi pamadzi, ndi zingwe zotumizira magetsi.
Mayendedwe apano pakupanga zinthu zotchinjiriza za XLPE akuphatikiza zida zotchinjiriza za waya za PE zolumikizira chingwe chamagetsi, zida zomangira za PE zolumikizira mlengalenga, ndi zida zoyatsira moto zolumikizidwa ndi malawi a polyolefin.
(2)Cross-Linked Polypropylene (XL-PP) Insulation Material:
Polypropylene (PP), monga pulasitiki wamba, ili ndi mawonekedwe monga kulemera kwapang'onopang'ono, magwero ochulukirapo azinthu zopangira, zotsika mtengo, kukana kwa dzimbiri kwa mankhwala, kusavuta kuumba, komanso kubwezanso. Komabe, ili ndi malire monga mphamvu zochepa, kusamatenthedwa bwino kwa kutentha, kuwonongeka kwakukulu kwa shrinkage, kulephera kugwa, kufooka kwapang'onopang'ono, komanso kukana kutentha ndi ukalamba wa okosijeni. Zolepheretsa izi zalepheretsa kugwiritsidwa ntchito kwake pamakompyuta. Ofufuza akhala akugwira ntchito yosintha zida za polypropylene kuti ziwongolere magwiridwe antchito awo onse, ndipo ma radiation yolumikizidwa ndi polypropylene (XL-PP) yathana bwino ndi izi.
Mawaya otetezedwa a XL-PP amatha kukumana ndi mayeso amoto a UL VW-1 ndi miyezo ya waya yovotera 150 ° C. Pakugwiritsa ntchito chingwe, EVA nthawi zambiri imasakanizidwa ndi PE, PVC, PP, ndi zida zina kuti zisinthe magwiridwe antchito a chingwe chotchinga.
Chimodzi mwazovuta za PP yolumikizidwa ndi kuwala kwa PP ndikuti imaphatikizapo kupikisana pakati pa mapangidwe amagulu omaliza opanda unsaturated kudzera pakuwonongeka komanso kulumikizana pakati pa mamolekyu olimbikitsidwa ndi ma molekyulu akulu aulere. Kafukufuku wawonetsa kuti chiwopsezo cha kuwonongeka kwa machitidwe olumikizirana pamalumikizidwe ophatikizika a PP ndi pafupifupi 0.8 mukamagwiritsa ntchito kuyatsa kwa gamma-ray. Kuti mukwaniritse zolumikizana zolumikizana bwino mu PP, otsatsa olumikizirana ayenera kuwonjezeredwa kuti azitha kulumikizana ndi waya. Kuphatikiza apo, makulidwe olumikizirana bwino amachepetsedwa ndi kuthekera kolowera kwa matabwa a ma elekitironi panthawi yowunikira. Kuyatsa kumabweretsa kupanga mpweya komanso kuchita thovu, komwe kumakhala kopindulitsa pakulumikiza zinthu zoonda koma kumachepetsa kugwiritsa ntchito zingwe zolimba.
(3) Cross-Linked Ethylene-Vinyl Acetate Copolymer (XL-EVA) Insulation Material:
Pamene kufunikira kwa chitetezo cha chingwe kukuchulukirachulukira, kupangidwa kwa zingwe zopanda halogen zopanda malawi zolumikizira moto kwakula mwachangu. Poyerekeza ndi PE, EVA, yomwe imayambitsa ma vinyl acetate monomers mu unyolo wa mamolekyulu, imakhala ndi crystallinity yotsika, zomwe zimapangitsa kusinthasintha, kukana kukhudzidwa, kuyanjana kwa zodzaza, komanso kusindikiza kutentha. Nthawi zambiri, katundu wa EVA resin amadalira zomwe zili mu vinyl acetate monomers mu unyolo wa maselo. Zomwe zili pamwamba pa vinyl acetate zimapangitsa kuwonekera, kusinthasintha, ndi kulimba. Utoto wa EVA umakhala wogwirizana kwambiri ndi zodzaza ndi zolumikizirana, zomwe zimapangitsa kuti zizidziwika kwambiri mu zingwe zolumikizidwa ndi halogen zopanda malawi.
Utoto wa EVA wokhala ndi vinyl acetate wa pafupifupi 12% mpaka 24% umagwiritsidwa ntchito kwambiri pomanga waya ndi chingwe. Pakugwiritsa ntchito chingwe chenicheni, EVA nthawi zambiri imasakanizidwa ndi PE, PVC, PP, ndi zida zina kuti zisinthe magwiridwe antchito a chingwe chotchinga. Zigawo za EVA zitha kulimbikitsa kulumikizana, kuwongolera magwiridwe antchito a chingwe pambuyo polumikizana.
(4) Cross-Linked Ethylene-Propylene-Diene Monomer (XL-EPDM) Insulation Material:
XL-EPDM ndi terpolymer yopangidwa ndi ethylene, propylene, ndi non-conjugated diene monomers, yolumikizidwa kudzera mu kuwala. Zingwe za XL-EPDM zimaphatikiza ubwino wa zingwe za polyolefin-insulated ndi zingwe zodziwika bwino za rabara:
1. Kusinthasintha, kukhazikika, kusamata pa kutentha kwakukulu, kukana kukalamba kwa nthawi yaitali, ndi kukana nyengo yovuta (-60 ° C mpaka 125 ° C).
2. Kukana kwa ozoni, kukana kwa UV, ntchito yamagetsi yamagetsi, ndi kukana kwa dzimbiri la mankhwala.
3. Kukaniza mafuta ndi zosungunulira zomwe zingafanane ndi kutchinjiriza kwa rabala kwa chloroprene. Itha kupangidwa pogwiritsa ntchito zida wamba zotentha za extrusion, zomwe zimapangitsa kuti zikhale zotsika mtengo.
Zingwe za XL-EPDM-insulated zili ndi ntchito zambiri, kuphatikizapo, koma osati zochepa, zingwe zamagetsi zotsika kwambiri, zingwe za sitima, zingwe zoyatsira magalimoto, zingwe zowongolera za compressor firiji, zingwe zam'manja zamigodi, zida zoboola, ndi zida zamankhwala.
Zoyipa zazikulu za zingwe za XL-EPDM zimaphatikizapo kukana kung'ambika komanso zomatira zofooka komanso zomatira zokha, zomwe zingakhudze kukonza kotsatira.
(5) Silicone Rubber Insulation Material
Rabara ya silicone imakhala ndi kusinthasintha komanso kukana bwino kwa ozoni, kutulutsa kwa corona, ndi malawi, zomwe zimapangitsa kuti ikhale chinthu choyenera kutchingira magetsi. Ntchito yake yayikulu mumakampani amagetsi ndi mawaya ndi zingwe. Mawaya a rabara a silicone ndi oyenerera makamaka kuti agwiritsidwe ntchito kumalo otentha kwambiri komanso ovuta, okhala ndi moyo wautali kwambiri poyerekeza ndi zingwe zokhazikika. Zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo ma motors otentha kwambiri, ma transfoma, majenereta, zida zamagetsi ndi zamagetsi, zingwe zoyatsira moto m'magalimoto oyendera, ndi zingwe zamagetsi zam'madzi ndi zowongolera.
Pakalipano, zingwe zotchinga mphira za silikoni nthawi zambiri zimalumikizidwa pogwiritsa ntchito mphamvu ya mumlengalenga ndi mpweya wotentha kapena nthunzi yothamanga kwambiri. Palinso kafukufuku wopitilira pakugwiritsa ntchito kuwala kwa ma elekitironi pamtengo wolumikizira mphira wa silikoni, ngakhale kuti sikunachulukebe pamakampani opanga zingwe. Ndi kupita patsogolo kwaposachedwa kwaukadaulo wolumikizira mphira wamagetsi, imapereka njira yotsika mtengo, yogwira bwino ntchito, komanso yosamalira chilengedwe ya zida zotchinjiriza mphira za silikoni. Kupyolera mu kuwala kwa electron beam kapena magwero ena a radiation, kulumikizana koyenera kwa mphira wa silikoni kumatha kukwaniritsidwa pomwe kulola kuwongolera kuya ndi kuchuluka kwa kulumikizanako kuti kukwaniritse zofunikira zinazake.
Chifukwa chake, kugwiritsa ntchito ukadaulo wolumikizira mphira wamagetsi pazida zotchinjiriza mphira wa silikoni kumakhala ndi lonjezano lalikulu pamsika wamawaya ndi zingwe. Tekinolojeyi ikuyembekezeka kuchepetsa ndalama zopangira zinthu, kuwongolera magwiridwe antchito, komanso kuchepetsa kuwononga chilengedwe. Kafukufuku wam'tsogolo komanso ntchito zachitukuko zitha kupititsa patsogolo kugwiritsa ntchito ukadaulo wolumikizira mphira wolumikizira mphira wa silikoni, kuwapangitsa kuti azigwiritsidwa ntchito kwambiri popanga mawaya otentha kwambiri, okwera kwambiri komanso zingwe pamakampani amagetsi. Izi zidzapereka mayankho odalirika komanso okhazikika pamagawo osiyanasiyana ogwiritsira ntchito.
Nthawi yotumiza: Sep-28-2023