Vim li cas Moisture yog ib qho kev hem thawj rau Electronics
Cov av noo ua rau muaj kev pheej hmoo ntau rau cov khoom siv hluav taws xob: corrosion ua rau cov hlau sib txuas, cov khoom sib txuas, thiab cov khoom siv hluav taws xob; electrochemical migration ua rau luv circuits thiab mus tas li board tsis ua hauj lwm; fungal kev loj hlob uas cuam tshuam kev ua haujlwm thiab ua rau muaj kev phom sij rau kev noj qab haus huv; thiab o thiab delamination uas rhuav tshem cov khoom thiab cov ntaub ntawv txheej. Cov teeb meem no ua rau cov khoom lag luam tsis ua haujlwm, kev them nyiaj lav lav, kev puas tsuaj lub koob npe nrov, thiab cov neeg siv khoom tsis txaus siab, ua kom muaj kev tswj hwm dej noo zoo ib yam li kev xaiv.
Montmorillonite Clay Desiccant: Qhov zoo tshaj plaws tiv thaiv rau Electronics
Montmorillonite yog cov av nplaum uas muaj nuj nqis rau nws qhov muaj peev xwm adsorption siab, ruaj khov, thiab tus nqi -kev ua tau zoo. Tsis zoo li silica gel, cov av nplaum no -raws li desiccant adsorbs dej vapor rau hauv nws cov qauv crystalline. Nws qhov txiaj ntsig tseem ceeb rau kev tiv thaiv hluav taws xob suav nrog kev ua haujlwm siab thoob plaws ntau qhov av noo, tsis yog -corrosive thiab chemically inert zog uas ua rau nws muaj kev nyab xeeb rau kev sib cuag ncaj qha nrog feem ntau cov khoom hluav taws xob (tseem pom zoo kom siv tau), tus nqi -kev ua tau zoo piv rau cov khoom siv hluavtaws, thiab ib puag ncig tus phooj ywg raws li cov ntxhia hauv ntuj uas feem ntau yuav tsum tau pov tseg (cov cai yuav tsum tau pov tseg).
Kev siv cov cai rau kev tiv thaiv siab tshaj plaws
Kev siv zoo ntawm montmorillonite desiccants yuav tsum tau ua raws li peb txoj cai tseem ceeb. Ua ntej, xam qhov tseeb yog qhov tseem ceeb, nrog rau cov qauv ntsuas ntsuas yog grams ib cubic meter (g / m³). Txoj cai dav dav rau ntim ntim yog 40-60 g/m³ rau kev tiv thaiv nruab nrab thiab 80-120 g/m³ rau cov av noo los yog lub sij hawm ntev cia / shipping. Piv txwv li, ib lub thawv ntim khoom ntim nrog qhov ntev ntawm 1m x 1m x 0.5m (ntim=0.5 cubic meters) yuav tsum muaj 50 grams desiccant rau kev tiv thaiv siab (0.5 m³ × 100 g / m³). Kev sab laj nrog cov neeg muab khoom siv rau kev xam cov lus tseeb raws li cov xwm txheej tshwj xeeb yog pom zoo.
Qhov thib ob, kev tso kawm kom raug thiab kev ntim khoom yog qhov tseem ceeb. Cov khoom siv desiccant yuav tsum tau muab faib kom sib npaug thoob plaws hauv lub pob, tsis yog pawg, thiab dai lossis muab tso rau ze rau sab saum toj (raws li huab cua kub, noo noo nce). Lawv yuav tsum tau ntim rau hauv Tyvek® lossis cov hnab ntawv zoo sib xws uas tso cai rau cov pa ya raws thaum muaj cov av nplaum. Rau kev tiv thaiv zoo tshaj plaws tiv thaiv ya raws thiab corrosion, montmorillonite desiccant tuaj yeem siv nrog rau Volatile Corrosion Inhibitor (VCI) emitters lossis ntawv. Thib peb, airtight sealing tsis yog -negotiable- desiccants ua haujlwm los ntawm kev txo cov av noo hauv ib puag ncig kaw. Cov hnab ntim dej noo (piv txwv li, PET / AL / PE laminate) nrog cov cua sov kom zoo yuav tsum tau siv; Muab cov desiccants rau hauv cov thawv ntawv uas tsis muaj cov hnab ntim kaw tsis zoo.
Txee Lub neej Management rau Desiccant Effectiveness
Kev tswj cov desiccant "freshness" yog qhov tseem ceeb, vim tias cov ntaub ntawv no muaj peev xwm kawg. Nws yog ib qho tseem ceeb kom paub qhov txawv ntawm lub neej txee (lub sij hawm kaw, tsis siv desiccant tuaj yeem khaws cia ua ntej poob peev txheej adsorption) thiab kev pabcuam lub neej (lub sijhawm ua haujlwm tom qab raug huab cua, nyob ntawm qhov ntim, qhov av noo, thiab qhov kub thiab txias). Cov kev coj ua zoo tshaj plaws rau kev ua kom lub neej ntev tshaj plaws suav nrog kev khaws cov desiccants kaw kom txog thaum siv (qhov raug rau huab cua puag ncig pib adsorption), tswj cov khoom hauv tsev (khov hauv qhov chaw txias, qhuav kom deb ntawm cov av noo siab thiab kub viav vias), tom qab FIFO (Thawj-Nyob rau hauv, Ua ntej-Tawm) kev tswj cov khoom lag luam kom siv cov khoom lag luam zoo li cov khoom lag luam ua ntej, thiab cov ntawv qhia xiav-rau- xim liab hloov qhov taw qhia "ntub" yuav ua rau muaj kev cuam tshuam rau lub neej txee).
