UV number case luam ntawv feem ntau yog siv cov txheej txheem ntawm kev ziab UV tam sim ntawd, kom tus number case tuaj yeem ua raws li cov khoom siv ntawm tus kheej nplaum. Txawm li cas los xij, nyob rau hauv cov txheej txheem ntawm kev luam ntawv, qhov teeb meem ntawm kev ua tsis zoo ntawm UV number case nyob rau saum npoo ntawm cov ntaub ntawv nws tus kheej nplaum feem ntau tshwm sim.
Dab tsi yog qhov tsis zoo adhesion ntawm UV number case?
Cov terminals sib txawv muaj ntau txoj hauv kev los kuaj qhov tsis zoo ntawm UV number case. Txawm li cas los xij, hauv kev lag luam daim ntawv lo rau tus kheej, cov neeg siv khoom feem ntau yuav siv 3M 810 lossis 3M 610 daim kab xev rau kev ntsuas tus number case adhesion.
Kev ntsuas ntsuas: Tus number case firmness yog ntsuas raws li tus naj npawb ntawm tus number case daig tom qab daim nplaum nplaum tau daig ntawm daim ntawv lo thiab tom qab ntawd tshem tawm.
Qib 1: tsis muaj number case poob
Theem 2: Me ntsis number case poob (<10%)
Qib 3: nruab nrab number case shedding (10% ~ 30%)
Theem 4: hnyav number case (30% ~ 60%)
Qib 5: yuav luag tag nrho cov number case poob (> 60%)
nqe lus nug 1:
Hauv kev tsim khoom, peb feem ntau ntsib qhov teeb meem uas thaum qee cov ntaub ntawv luam tawm ib txwm, tus number case adhesion yog OK, tab sis tom qab kev luam ntawv nrawm dua, cov number case adhesion ua phem dua.
vim 1:
Raws li photoinitiator hauv UV number case absorbs UV teeb los tsim cov dawb radicals, nws yuav hla kev txuas nrog monomer prepolymer nyob rau hauv tus number case tivthaiv los tsim ib lub network qauv, uas yog ib qho kev hloov ntawm cov kua rau cov khoom. Txawm li cas los xij, hauv kev luam ntawv tiag tiag, txawm hais tias tus number case nto qhuav tam sim ntawd, nws yog ib qho nyuaj rau ultraviolet lub teeb kom nkag mus rau hauv cov txheej txheem ntawm tus number case kom ncav cuag cov txheej hauv qab, uas ua rau tsis tiav photochemical cov tshuaj tiv thaiv ntawm cov txheej hauv qab number case.
Tswv yim:Rau kev sib sib zog nqus number case thiab lub teeb luam ntawv, cov xim muaj zog muaj zog tuaj yeem siv los txo cov tuab ntawm cov number case txheej, uas tuaj yeem tsis tsuas yog xyuas kom qhuav ntawm ib txheej number case xwb, tab sis kuj tseem txhim kho kev tsim khoom.
vim 2:
UV mercury teeb feem ntau yog siv li ntawm 1000 teev, thiab nws tuaj yeem teeb tom qab UV teeb tau siv ntau tshaj 1000 teev, tab sis UV number case tsis tuaj yeem qhuav tag. Qhov tseeb, ib zaug UV teeb tau mus txog nws lub neej kev pab cuam, nws cov spectral nkhaus tau hloov. Lub teeb ultraviolet emission tsis ua raws li qhov yuav tsum tau ua ntawm tus number case qhuav, thiab lub zog infrared tau nce, ua rau cov khoom deformation thiab number case embrittlement vim qhov kub thiab txias.
Cov lus qhia:Lub sijhawm siv ntawm UV teeb yuav tsum raug kaw kom raug thiab hloov raws sijhawm. Thaum lub sij hawm ib txwm tsim, nws tseem yuav tsum tau ua tib zoo saib xyuas qhov huv ntawm UV teeb thiab ntxuav lub reflector. Feem ntau, tsuas yog 1/3 ntawm UV teeb lub zog ncaj qha ci rau ntawm cov khoom nto, thiab 2/3 ntawm lub zog yog cuam tshuam los ntawm lub reflector.
nqe lus nug 2:
Hauv kev tsim khoom, peb feem ntau ntsib qhov teeb meem uas thaum qee cov ntaub ntawv luam tawm ib txwm, tus number case adhesion yog OK, tab sis tom qab kev luam ntawv nrawm dua, cov number case adhesion ua phem dua.
Ua rau 1:
Lub sij hawm luv luv ntawm tus number case thiab substrate ua rau tsis txaus molecular theem kev sib txuas ntawm cov khoom, cuam tshuam adhesion
Cov khoom ntawm tus number case thiab cov substrate diffuse thiab sib txuas ua ke los ua ib qho kev sib txuas ntawm qib molecular. Los ntawm kev ua kom lub sij hawm sib cuag ntawm tus number case thiab lub substrate ua ntej ziab, qhov kev sib txuas ntawm cov molecules tuaj yeem ua rau muaj kev cuam tshuam ntau dua, yog li ua kom tus number case adhesion.
Tswv yim: Ua kom lub tshuab luam ntawv qeeb qeeb, ua kom tus number case sib cuag nrog lub substrate, thiab txhim kho tus number case adhesion.
Ua rau 2:
UV tsis txaus lub sij hawm raug, ua rau tus number case tsis qhuav tag, cuam tshuam adhesion
Qhov nce ntawm kev luam ntawv nrawm kuj tseem ua rau lub sijhawm irradiation ntawm UV teeb, uas yuav txo tau lub zog uas ci rau ntawm tus number case, yog li cuam tshuam rau qhov ziab ntawm tus number case, uas ua rau tsis zoo adhesion vim tsis tiav ziab.
Tswv yim:Ua kom nrawm nrawm ntawm kev luam ntawv, cia tus number case kom qhuav hauv qab UV teeb, thiab txhim kho qhov adhesion.
Post lub sij hawm: Oct-09-2022