Isizukulwane esisha sama-silicone nama-epoxies aphilisa i-UV sisetshenziswa kakhulu ezindleleni zezimoto neze-elekthronikhi.
Isenzo ngasinye empilweni sihilela ukuhweba: Ukuthola inzuzo eyodwa ngokulimaza enye, ukuze kuhlangatshezwane kangcono nezidingo zesimo esikhona. Uma isimo sihilela ukubopha okukhulu, ukuvala noma ukufaka igesi, abakhiqizi bathembele kuma-glue avikela i-UV ngoba avumela ukuphiliswa ngokushesha lapho kudingeka (imizuzwana eyi-1 kuya kwemi-5 ngemva kokukhanya).
Nokho, umehluko ukuthi lezi zinamathiseli (i-acrylic, i-silicone kanye ne-epoxy) zidinga i-substrate ecacile ukuze zihlangane kahle, futhi zibiza kakhulu kunezinamathiseli eziqina ngezinye izindlela. Noma kunjalo, abakhiqizi abaningi ezimbonini eziningi baye bakwenza lokhu ngenjabulo amashumi eminyaka ambalwa. Izinkampani eziningi zizokwenza kanjalo esikhathini esizayo esibonakalayo. Umehluko, nokho, ukuthi onjiniyela bazoba nethuba lokusebenzisa i-silicone noma i-epoxy UV-cure adhesive, njengaleyo esekelwe ku-acrylic.
“Nakuba sesenze ama-silicone acwebezelayo e-UV eminyakeni eyishumi edlule noma ngaphezulu, eminyakeni emithathu edlule kuye kwadingeka siqinise imizamo yethu yokuthengisa ukuze sihambisane nesidingo semakethe,” kuphawula uDoug McKinzie, iphini likamongameli wemikhiqizo ekhethekile kwaNovagard Solutions. “Ukuthengiswa kwethu kwe-silicone ecwebezelayo e-UV kukhuphuke ngamaphesenti angu-50 eminyakeni embalwa edlule. Lokhu kuzonciphisa okunye, kodwa sisalindele ukukhula okuhle eminyakeni eminingana ezayo.”
Phakathi kwabasebenzisi abakhulu bama-silicone acwengekile nge-UV kukhona ama-OEM ezimoto, kanye nabaphakeli be-Tier 1 kanye ne-Tier 2. Umhlinzeki we-Tier 2 oyedwa usebenzisa i-Loctite SI 5031 sealant evela ku-Henkel Corp. ukuze afake ama-terminals ezindaweni zokugcina amamojula okulawula amabhuleki kagesi kanye nezinzwa zokucindezela amathayi. Le nkampani iphinde isebenzise i-Loctite SI 5039 ukwakha i-gasket ye-silicone ecwengekile nge-UV eduze komngcele wemojula ngayinye. UBill Brown, umphathi wobunjiniyela bezinhlelo zokusebenza ze-Henkel, uthi yomibili le mikhiqizo iqukethe udayi we-fluorescent ukusiza ukuqinisekisa ukuba khona kwe-adhesive ngesikhathi sokuhlolwa kokugcina.
Lokhu kuhlanganiswa okuncane kube sekuthunyelwa kumhlinzeki we-Tier 1 ofaka ezinye izingxenye zangaphakathi futhi axhumanise i-PCB kuma-terminal. Isembozo sibekwa phezu kwe-gasket ezungeze umngcele ukuze kudalwe uphawu oluqinile lwemvelo ekuhlanganisweni kokugcina.
Izinamathiseli ze-epoxy ezikhazimulayo nge-UV nazo zivame ukusetshenziswa ezinhlotsheni zezimoto kanye nezama-electronics zabathengi. Esinye isizathu ukuthi lezi zinamathiseli, njenge-silicone, zenzelwe ngqo ukufanisa ubude be-wavelength yemithombo yokukhanya ye-LED (ama-nanometer angu-320 kuya kwangu-550), ngakho abakhiqizi bathola zonke izinzuzo zokukhanya kwe-LED, njengokuphila isikhathi eside, ukushisa okulinganiselwe kanye nokulungiswa okuguquguqukayo. Esinye isizathu izindleko eziphansi zenhloko-dolobha zokwelapha nge-UV, ngaleyo ndlela kwenza kube lula ngezinkampani ukuhweba ngalobu buchwepheshe.
Isikhathi sokuthunyelwe: Agasti-04-2024
