Mitundu ina ya UV-Curing Adhesives

Mbadwo watsopano wa ma silicones ochiritsa a UV ndi ma epoxies akugwiritsidwa ntchito kwambiri pamagalimoto ndi zamagetsi.
Chilichonse chochita m'moyo chimaphatikizapo kusinthanitsa: Kupeza phindu lina mowononga lina, kuti mukwaniritse zosowa za momwe zinthu zilili. Zinthu zikakhudza kulumikizana kwakukulu, kusindikiza kapena kuyika gasket, opanga amadalira zomatira zochizira UV chifukwa zimalola kuchira msanga (1 mpaka masekondi 1 mpaka 5 pambuyo pa kuyatsa).

Kugulitsa, komabe, ndikuti zomatira izi (acrylic, silicone ndi epoxy) zimafuna gawo lapansi lowonekera kuti ligwirizane bwino, ndipo zimawononga ndalama zambiri kuposa zomatira zomwe zimachiritsa ndi njira zina. Komabe, opanga ambiri m'mafakitale ambiri apanga malondawa mosangalala kwa zaka makumi angapo. Makampani ena ambiri adzachita izi mtsogolo mwamtsogolo. Kusiyanako, komabe, ndikuti mainjiniya azikhala ndi mwayi wogwiritsa ntchito zomatira za silicone kapena epoxy UV-cure, monga zomwe zimapangidwa ndi acrylic.

"Ngakhale tapanga ma silicone ochiritsa a UV kwazaka khumi zapitazi, m'zaka zitatu zapitazi takhala tikulimbikira kugulitsa kuti tikwaniritse zomwe msika ukufunikira," akutero a Doug McKinzie, wachiwiri kwa purezidenti wazogulitsa zapadera ku Novagard. Zothetsera. "Zogulitsa zathu za silicone zochizira UV zakwera 50 peresenti zaka zingapo zapitazi. Izi zichepetsa ena, koma tikuyembekezerabe kukula bwino kwazaka zingapo zikubwerazi. ”

Pakati pa ogwiritsa ntchito kwambiri ma silicone ochizira UV ndi ma OEM agalimoto, ndi ogulitsa Tier 1 ndi Tier 2. Wothandizira Mmodzi wa Tier 2 amagwiritsa ntchito Loctite SI 5031 sealant kuchokera ku Henkel Corp. kupita kumalo osungiramo miphika m'nyumba zamamodule amagetsi owongolera ma brake ndi masensa othamanga pamatayala. Kampaniyo imagwiritsanso ntchito Loctite SI 5039 kupanga gasket ya silikoni yochiritsidwa ndi UV mozungulira mozungulira gawo lililonse. Bill Brown, manejala wa engineering ya Henkel, akuti zinthu zonsezi zili ndi utoto wa fulorosenti kuti zitsimikizire kukhalapo kwa zomatira pakuwunika komaliza.

Subassembly iyi imatumizidwa kwa othandizira a Tier 1 omwe amaika zowonjezera zamkati ndikulumikiza PCB ku ma terminals. Chophimbacho chimayikidwa pamwamba pa gasket yozungulira kuti apange chisindikizo cholimba kwambiri pa msonkhano womaliza.

Zomatira za UV-cure epoxy zimagwiritsidwanso ntchito pafupipafupi pamagalimoto ndi ogula zamagetsi. Chifukwa chimodzi ndi chakuti zomatirazi, monga ma silicones, amapangidwa makamaka kuti agwirizane ndi kutalika kwa kuwala kwa kuwala kwa LED (320 mpaka 550 nanometers), kotero opanga amapeza ubwino wonse wa kuunikira kwa LED, monga moyo wautali, kutentha kochepa ndi masinthidwe osinthasintha. Chifukwa china ndi mtengo wotsika wa kuchiritsa kwa UV, motero kupangitsa kuti makampani azitha kuchita malonda mpaka ukadaulo uwu.