48. Cov teeb meem ntawm cov txheej txheem rau PCBA coatings hauv aerospace yog dab tsi?
Yuav tsum hloov kho rau -55 ℃ ~ 125 ℃ qhov kub thiab txias heev, qhov siab qis, hluav taws xob muaj zog, dhau NASA qhov kev xeem qis outgassing (tag nrho qhov hnyav poob ≤1.0%), qhov yuam kev sib npaug ntawm cov tuab
49. Cov txheej txheem ib puag ncig rau cov khoom siv kho mob PCBA yuav tsum ua raws li cov qauv twg?
Yuav tsum dhau ISO10993 biocompatibility kev ntsuam xyuas (cytotoxicity, sensitization, thiab lwm yam) thiab USP Class VI cov qauv khoom siv.
50. Cov ntsiab lus tseem ceeb ntawm kev tiv thaiv rau PCBA coatings hauv cov chaw sib txuas lus sab nraum zoov yog dab tsi?
Kev tiv taus UV (2000-teev kev sim QUV), tiv taus cua sov thiab noo noo (85 ℃/85% RH 96 teev), tiv thaiv ntsev tsuag (1500-teev kev sim hauv thaj chaw ntug dej hiav txwv).
51. Cov kev cai tshwj xeeb rau PCBA coatings hauv qhov chaw siab yog dab tsi?
Yuav tsum tau muaj qhov tso pa tawm tsawg thiab qhov kub thiab txias sib txawv kom tiv thaiv kev yaj hauv qab qhov siab tsawg thiab tawg/tawg vim qhov kub thiab txias hloov pauv.
52. Cov txheej txheem PCBA rau cov khoom siv tub rog yuav tsum ua raws li cov cai nruj twg?
Yuav tsum dhau MIL-STD-810G plua plav, nag, kev co, thiab kev cuam tshuam txog li 50g kev nrawm yam tsis muaj kev ua tsis tiav.
53. Cov kev cai rau cov txheej txheem ib puag ncig ntawm PCBA hauv kev lag luam zaub mov yog dab tsi?
Yuav tsum ua raws li FDA cov qauv khoom siv rau kev sib cuag zaub mov, xyuas kom tsis muaj kev tsiv teb tsaws chaw ntawm cov khoom phom sij, thiab tiv taus kev xeb ntawm cov tshuaj ntxuav.
54. Yuav ua li cas xaiv cov ntaub ntawv rau PCBA coatings hauv marine ib puag ncig?
Xaiv cov silicone lossis epoxy resins uas tiv taus ntsev tsuag >1000 teev, tiv taus xeb hauv dej hiav txwv, thiab muaj peev xwm tiv thaiv biofouling.
Kev kho thiab kev saib xyuas
55. Yuav kho qhov puas tsuaj hauv zos rau PCBA coatings li cas?
Siv ethyl acetate los ntxuav qhov chaw puas, rov ntxuav dua, tom qab ntawd txhuam/muab tshuaj pleev rau kho, kho raws li cov qauv.
56. Yuav ua li cas los ua qhov kev tshuaj xyuas zoo ntawm cov txheej kho kom zoo?
Tshuaj xyuas qhov tsos, tuab, kev nplaum (kev sim txiav hla), thiab kev tiv thaiv rwb thaiv tsev kom ntseeg tau tias sib xws nrog cov txheej qub.
57. Cov txheej txheej qub puas tuaj yeem rov pleev dua tau?
Yog tias cov khoom siv hauv qab thiab cov khoom tseem zoo, tshem cov txheej txheej qub tawm los ntawm kev siv tshuaj lom neeg/mechanical thiab pleev dua tshiab, ceev faj kom tsis txhob muaj kev puas tsuaj rau lub rooj tsavxwm.
58. Yuav ua li cas thiaj tswj tau PCBA nrog cov txheej txheej coated?
Tsis txhob khawb, tsis tu ncua tshuaj xyuas qhov tsos, kho qhov puas tsuaj sai sai, thiab khaws cia rau hauv qhov chaw qhuav, tsis muaj roj xeb.
59. Yuav ua li cas thiaj li daws tau qhov kev puas tsuaj ntawm cov txheej thaum siv?
Tshawb xyuas seb ua li cas (piv txwv li, kev laus ntawm ib puag ncig). Cov teeb meem hauv zos tuaj yeem kho tau; qhov kev puas tsuaj loj heev yuav tsum tau soj ntsuam kom rov ua dua lossis hloov PCBA.
60. Yuav ua li cas thiaj tiv thaiv tau qhov kev puas tsuaj thib ob rau PCBA thaum kho?
Siv cov cuab yeej tiv thaiv hluav taws xob, tswj cov tshuaj ntxuav kom huv, thiab txhais kom meej qhov kev kho kom zoo kom tiv thaiv kev ua qias tuaj ntawm thaj chaw uas tsis tiv thaiv tau.
61. Yuav ua li cas thiaj tswj tau cov nqi kho txheej?
Siv kev kho hauv zos es tsis txhob siv cov xim pleev dua tag nrho, siv cov khoom seem kom zoo, thiab ua kom cov txheej txheem zoo tshaj plaws kom txo lub sijhawm ua haujlwm.
Cov thev naus laus zis tshiab thiab cov qauv yav tom ntej
62. Cov txiaj ntsig ntawm kev siv tshuab nanocoating hauv PCBA ib puag ncig txheej txheem yog dab tsi?
Qhov tuab tsuas yog 1/10-1/5 ntawm cov txheej txheem ib txwm muaj (5-20μm), nrog rau 3x txhim kho kev hnav tsis kam, 50% txhim kho kev tiv thaiv corrosion, thiab kho sai dua.
63. Qhov cuam tshuam ntawm cov txheej txheem luam ntawv 3D rau kev tiv thaiv PCBA yog dab tsi?
Ua kom muaj kev txheej txheem tshwj xeeb hauv zos, ua tau raws li qhov xav tau kev tiv thaiv rau cov qauv nyuaj, txo cov khoom pov tseg, thiab txhim kho kev ywj pheej ntawm kev tsim khoom.
64. Kev coj ua ntawm kev tsim cov txheej txheem ntse hauv PCBA yog dab tsi?
Tsim cov haujlwm kho tus kheej (microcapsule technology) thiab cov lus teb ib puag ncig (kev kho qhov kub thiab txias/av noo) kom txhim kho kev ntseeg tau.
65. Yuav ua li cas thiaj siv tau cov txheej txheem dej hauv PCBA ib puag ncig?
Yuav luag tsis muaj cov VOC ntau, kev ua tau zoo rau ib puag ncig zoo heev. Nrog rau kev txhim kho thev naus laus zis, kev ziab sai thiab kev nplaum zoo dua, xav tias yuav hloov qee cov txheej txheem ua los ntawm cov kuab tshuaj.
66. Lub luag haujlwm ntawm kev tswj cov txheej txheem digital hauv PCBA txheej txheem yog dab tsi?
Saib xyuas cov khoom siv thiab kev siv khoom siv ntawm IoT, ua kom cov txheej txheem zoo dua nrog cov ntaub ntawv loj,
