Menene babban dalilin amfani da LED curing adhesives akan UV curable adhesives?
LED curing adhesives yawanci magani a cikin 30-45 seconds a karkashin wani haske na 405 nanometer (nm) zango. Adhesives haske na gargajiya, da bambanci, magani a ƙarƙashin hasken ultraviolet (UV) tare da tsayin raƙuman ruwa tsakanin 320 zuwa 380 nm. Ga injiniyoyin ƙira, ikon yin cikakken warkar da mannewa a ƙarƙashin haske mai gani yana buɗe kewayon haɗin gwiwa, rufewa da aikace-aikacen rufewa waɗanda a baya ba su dace da samfuran warkar da haske ba, tunda a yawancin aikace-aikacen substrates na iya watsawa a cikin tsayin UV amma ba da damar bayyane. watsa haske.
Wadanne abubuwa ne zasu iya shafar lokacin magani?
Yawanci, ƙarfin hasken fitilar LED ya kamata ya kasance tsakanin 1 da 4 watts/cm2. Wani abin la'akari shine nisa daga fitilar zuwa maɗauran mannewa, alal misali, nisa daga fitilar daga manne, tsawon lokacin magani. Sauran abubuwan da za a yi la'akari da su sune kauri na manne, Layer na bakin ciki zai warke da sauri fiye da kauri mai kauri, da kuma yadda abubuwan da ke bayyana a fili suke. Dole ne a tweaked hanyoyin da za a inganta lokutan warkewa, bisa ga geometries na kowane ƙira, har ma da nau'in kayan aiki da aka yi amfani da su.
Ta yaya ake tabbatar da cewa mannen LED ɗin ya warke sosai?
Lokacin da manne LED ɗin ya warke gabaɗaya, yana samar da wani wuri mai wuya kuma mara ƙarfi wanda ke da santsin gilashi. Batun tare da ƙoƙarin da aka rigaya don warkewa a cikin tsayi mai tsayi shine yanayin da ake kira hana iskar oxygen. Hanawar iskar oxygen yana faruwa lokacin da iskar oxygen ta hana tsarin polymerization mai ɗorewa wanda ke warkar da kusan duk adhesives UV. Yana haifar da wani tacky, wani yanki da aka warke.
Lokacin aikawa: Agusta-04-2023
