Ib tiam tshiab ntawm UV-kho silicones thiab epoxies tau nce siv hauv kev siv tsheb thiab hluav taws xob.
Txhua qhov kev nqis tes ua hauv lub neej cuam tshuam nrog kev lag luam tawm: Kev tau txais txiaj ntsig ntawm ib qho txiaj ntsig ntawm lwm tus, kom ua tau raws li qhov xav tau ntawm qhov xwm txheej ntawm tes. Thaum qhov xwm txheej cuam tshuam nrog kev sib koom ua ke, kev sib khi lossis gasketing, cov tuam txhab tso siab rau UV-kho cov nplaum vim lawv tso cai rau kev thov thiab kho sai (1 mus rau 5 vib nas this tom qab lub teeb raug).
Qhov kev lag luam tawm, txawm li cas los xij, yog tias cov nplaum nplaum (acrylic, silicone thiab epoxy) xav tau cov pob tshab kom zoo, thiab lawv raug nqi ntau dua li cov nplaum uas kho los ntawm lwm txoj kev. Txawm li cas los xij, suav tsis txheeb cov tuam txhab lag luam hauv ntau qhov kev lag luam tau zoo siab ua qhov kev lag luam tawm rau ntau xyoo lawm. Ntau lub tuam txhab ntxiv yuav ua li ntawd rau yav tom ntej. Qhov txawv, txawm li cas los xij, yog tias cov engineers yuav zoo li yuav siv silicone lossis epoxy UV-kho nplaum nplaum, uas yog acrylic-based.
"Txawm hais tias peb tau ua UV-kho silicones rau kaum xyoo dhau los los yog li ntawd, nyob rau hauv peb lub xyoos dhau los peb yuav tsum tau siv zog peb muag kom ua raws li kev lag luam xav tau," sau Doug McKinzie, tus lwm thawj ntawm cov khoom tshwj xeeb ntawm Novagard. Kev daws teeb meem. "Peb UV-kho silicone muag tau nce 50 feem pua hauv ob peb xyoos dhau los. Qhov no yuav txo qis qee qhov, tab sis peb tseem cia siab tias yuav muaj kev loj hlob zoo rau ob peb xyoos tom ntej no. "
Ntawm cov neeg siv loj tshaj plaws ntawm UV-kho silicones yog automotive OEMs, thiab Tier 1 thiab Tier 2 lwm tus. Ib Tier 2 tus neeg muag khoom siv Loctite SI 5031 sealant los ntawm Henkel Corp. rau lub lauj kaub terminals nyob rau hauv vaj tse rau hluav taws xob nres-tswj modules thiab log-siab sensors. Lub tuam txhab kuj tseem siv Loctite SI 5039 los tsim UV-kho-hauv-qhov chaw silicone gasket nyob ib puag ncig ntawm txhua qhov module. Bill Brown, tus thawj coj ntawm kev siv engineering rau Henkel, hais tias ob yam khoom muaj cov fluorescent dye los pab txheeb xyuas cov nplaum nplaum thaum kuaj zaum kawg.
Qhov no subassembly yog tom qab ntawd xa mus rau tus neeg muag khoom Tier 1 uas ntxig cov khoom siv sab hauv ntxiv thiab txuas PCB rau cov khoom siv. Ib lub hau npog yog muab tso rau ntawm qhov chaw ib puag ncig gasket los tsim kom muaj ib puag ncig nruj ntawm kev sib dhos zaum kawg.
UV-kho epoxy adhesives kuj nquag siv rau kev siv tsheb thiab cov khoom siv hluav taws xob. Ib qho laj thawj yog vim li cas cov nplaum no, zoo li silicones, tau tsim tshwj xeeb kom haum rau lub wavelength ntawm LED teeb qhov chaw (320 txog 550 nanometers), yog li cov tuam ntxhab tau txais tag nrho cov txiaj ntsig ntawm LED teeb pom kev zoo, xws li lub neej ntev, kev siv hluav taws xob tsawg thiab hloov tau yooj yim. Lwm qhov laj thawj yog tus nqi qis dua ntawm UV kho, yog li ua kom yooj yim rau cov tuam txhab lag luam mus txog qhov thev naus laus zis no.
Post lub sij hawm: Aug-04-2024
