Kodi pali miyezo yadziko lonse kapena yapadziko lonse lapansi yachikwama cha EVAkuyesa kwabwino?
Matumba a EVA, ndiko kuti, matumba opangidwa ndi ethylene-vinyl acetate copolymer (EVA), amagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana chifukwa cha kupepuka kwawo, kulimba komanso magwiridwe antchito abwino. Pakuyesa kwabwino kwa matumba a EVA, palidi miyeso yapadziko lonse lapansi komanso yapadziko lonse lapansi kuti zitsimikizire chitetezo ndi kudalirika kwazinthu. Nayi miyezo yayikulu yoyezera chikwama cha EVA:
Miyezo Yadziko Lonse
ISO 1629-1: Uwu ndi njira yoyesera ya zida za EVA zopangidwa ndi International Organisation for Standardization (ISO), zomwe zimayesa mayeso azinthu zakuthupi za zida za EVA, monga kulimba kwamphamvu, kutalika panthawi yopuma, ndi zina zambiri.
ASTM D1043: Muyezo wazinthu za EVA wopangidwa ndi American Society for Testing and Materials (ASTM), womwe umakhudza njira zoyesera katundu wazinthu za EVA.
Miyezo Yadziko
GB/T 2000: Njira zoyesera za zida za EVA pamiyezo yadziko la China, kuphatikiza kuyesa kwa katundu wakuthupi wa zida za EVA
GB/T 1200: Iyi ndi njira yoyesera kachulukidwe kazinthu za EVA pamiyezo ya dziko la China.
GB/T 29848-2018: Imatchula zofunikira, njira zoyesera, malamulo oyendera, kuyika chizindikiro, kuyika, mayendedwe ndi kusungirako mafilimu a ethylene-vinyl acetate copolymer (EVA) a photovoltaic module encapsulation
GB/T 27934.2-2011: Njira zowongolera ndi kuzindikira zopangira mapepala osindikizidwa - Gawo 2: Ethylene-vinyl acetate copolymer (EVA) yotentha yosungunuka yomatira yomatira
GB/T 31984-2015: Njira yoyesera ya vinyl acetate zomwe zili mu ethylene-vinyl acetate copolymer for photovoltaic modules Thermogravimetric analysis (TGA)
Miyezo yamakampani
HG/T 2877: Muyezo wamakampani opanga ma Chemical, okhudzana ndi kupanga ndi zofunikira zamtundu wazinthu za EVA
QB/T 2309: Muyezo wamakampani owala, wophatikizira mulingo wogwiritsa ntchito zida za EVA muzovala za nsapato
Miyezo yoteteza zachilengedwe
RoHS Directive: Kuletsa kugwiritsa ntchito zinthu zina zowopsa pazida zamagetsi ndi zamagetsi, kugwiritsa ntchito zida za EVA pazida zamagetsi ziyenera kutsatira malangizowa.
REACH Regulation: Malamulo a EU pa kulembetsa, kuwunika, kuvomereza ndi kuletsa kwamankhwala, kupanga ndi kugwiritsa ntchito zida za EVA ziyenera kutsatira zofunikira za REACH Regulation.
Zofunikira zogwirira ntchito ndi njira zoyesera
Zofunikira pakugwirira ntchito kwa zida za EVA nthawi zambiri zimaphatikizanso zinthu zakuthupi, kutentha, katundu wamankhwala komanso kusinthasintha kwachilengedwe. Njira zoyeserera zimaphatikizira kuyesa kwamphamvu, kuyesa kuuma, kuyeserera kokhazikika kokhazikika komanso kuyesa kusanthula kwamafuta, ndi zina zambiri.
Potsatira miyezo iyi, kupanga ndi kugwiritsa ntchito matumba a EVA kungathe kuonetsetsa kuti ali ndi khalidwe labwino komanso chitetezo chawo ndikukwaniritsa zosowa za misika yosiyanasiyana ndi malo ogwiritsira ntchito. Miyezo iyi sikuti imangoyesa mayeso oyambira a zida za EVA, komanso imaphatikizanso chitetezo cha chilengedwe komanso zofunikira zamakampani, zomwe zimapereka chitsimikizo chokwanira cha matumba a EVA.
Kufotokozera kowonjezera:
Kodi zofunika zazikulu za GB/T 29848-2018 ndi ziti?
GB/T 29848-2018 ndi muyezo wa dziko la China, lomwe makamaka limatchula zofunikira, njira zoyesera, malamulo oyendera, kuyika chizindikiro, kulongedza, kunyamula ndi kusunga mafilimu a ethylene-vinyl acetate copolymer (EVA) a photovoltaic module encapsulation. Izi ndi zina mwazofunikira zomwe zafotokozedwa muyeso:
Kuchuluka kwa ntchito: Muyezowu umagwira ntchito pamakanema a EVA a photovoltaic module encapsulation, ndipo imatchulanso makanema owonekera a EVA ndi makanema oyera a EVA.
Migwirizano ndi matanthauzo: Anawonjezera mawu ndi matanthauzo a makanema owonekera a EVA, makanema oyera a EVA, ndi kuchulukana kwapamtunda, ndikuchotsa mawu ndi matanthauzidwe amakanema a EVA, digiri yolumikizirana, ndi kuchuluka kwa kuchepa.
Zofunikira pazambiri: Kusinthidwa zofunikira, kugawidwa m'mawonekedwe a EVA ndi mawonekedwe oyera a EVA, ndikuwonjezera kupotoka kwapamwamba.
Zofunikira pamawonekedwe: Anawonjezera zofunikira za "palibe ma creases komanso madontho"
Zofunikira pakugwira ntchito kwathupi: Zofunikira pakuchita bwino kwa EVA yowonekera, zidasintha ma transmittance, mphamvu ya peel, kuchuluka kwa mphamvu, kukana kukalamba kwa UV, kutentha kwambiri komanso kukalamba kwachinyezi, ndikusintha mphamvu yamagetsi yakuwonongeka kukhala mphamvu yamagetsi, kuonjezera mphamvu zamanjenje, kutalika. pa nthawi yopuma, kutsata ndondomeko yotsutsa, kutentha kwa kutentha kouma (chinthu chosankha), kutentha kwa UV ndi kukalamba kwakukulu (chinthu chosankha), PCT kukalamba (chinthu chosankha)
Zoyeserera: Sinthani "zofunikira zachitsanzo" kukhala "Magawo oyeserera" ndikusintha zofunikira
Njira zoyesera: kusinthidwa njira yoyesera makulidwe, kuonjezera njira yoyesera yopatuka pamadzi; kusintha njira yowunikira mawonekedwe; anawonjezera njira yoyesera yopatuka kumtunda; adachotsa njira yoyesera ya vinyl acetate (VA); kusintha njira yoyesera yotumizira; adawonjezera njira yoyesera yowunikira; adasintha njira yoyesera ya digiri ya crosslinking; onjezerani mphamvu zolimba komanso kutalika kwa njira zoyesera zopuma; adasintha njira yoyesera mphamvu ya peel; kusintha njira yoyesera yochepetsera; adasintha njira yoyesera mphamvu zamagetsi; adawonjezera njira yoyeserera yoyeserera kutsata; adasintha njira yoyesera kukana kukalamba kwa UV; kusinthidwa kutentha kwambiri ndi chinyezi chambiri kukalamba njira yoyeserera; adawonjezera kukalamba kowuma, kutentha kwa UV komanso kukalamba kwachinyontho, njira zoyesera za PCT kukalamba
Malamulo oyendera: anawonjezera "zofotokozera ndi zopatuka" kuzinthu zoyendera fakitale; adasintha mtundu wowunika
Kuyika, mayendedwe ndi kusungirako: adasintha moyo wa alumali wazogulitsa bokosi lolongedza litatsegulidwa
Malamulowa amaonetsetsa kuti ntchito ndi khalidwe la filimu ya EVA mu photovoltaic module encapsulation kuti akwaniritse zosowa za photovoltaic industry.
Ndi zinthu ziti zoyeserera zomwe zikuphatikizidwa mu ASTM D1043 standard?
Muyezo wa ASTM D1043 umakhudza makamaka kuyesa kwa torsion kwa zida zapulasitiki pansi pakusintha kwa kutentha kuti muwone mawonekedwe awo olimba. Izi ndi zina mwazinthu zoyeserera zomwe zikuphatikizidwa mu ASTM D1043 standard:
Kuuma kwa torsional: Kuyesa kuuma kwa zinthu zapulasitiki pamatenthedwe osiyanasiyana, chomwe ndi gawo lofunikira poyezera kuthekera kwazinthu kukana kusinthika kwapang'onopang'ono.
Kudalira kwa kutentha: Kuwunika momwe kuuma kwa zinthu zapulasitiki kumasinthira ndi kutentha, komwe ndikofunikira kuti timvetsetse momwe zinthu zimagwirira ntchito pansi pazikhalidwe zosiyanasiyana.
Torsional creep: kuyeza kusinthika kwazinthu zamapulasitiki pakapita nthawi pansi pa torque yosasunthika kuti muwone kukhazikika kwazinthuzo.
Kupumula kwa Torsional: Kuwunika ma torque azinthu zapulasitiki pansi pakusintha kosalekeza pakapita nthawi kuti mumvetsetse mawonekedwe opumula azinthuzo.
Muyezo wa ASTM D1043 umapereka njira yowunikira zisonyezo zazinthu zapulasitiki izi kudzera pakuyezetsa torsion, komwe kuli kofunikira kwambiri pakusankha zinthu, kapangidwe kazinthu komanso kuwongolera khalidwe. Kupyolera muzinthu zoyeserazi, kudalirika ndi kulimba kwa zipangizo zapulasitiki muzogwiritsira ntchito zosiyanasiyana zingathe kutsimikiziridwa.
Nthawi yotumiza: Dec-02-2024