Lub nrawm -} Cov Cwj mem dej tseem ceeb heev rau kev sim cov khoom siv nro hauv lub ntim, luam ntawv, thiab kev lag luam txheej. Cov txiaj ntsig tau muaj peev xwm tuaj yeem xaiv cov txheej txheem xaiv thiab kev tswjhwm zoo. Cov teeb meem tub ntxhais tseem ceeb nyob ib ncig ntawm plaub qhov tseem ceeb, raws li cov ncauj lus kom ntxaws hauv qab no
Cov tshuaj tsis huv
Core Caum:Cov khoom tsis huv ntawm cov khoom siv sib txuas nrog kev sib cuam tshuam ncaj qha ntawm cov number case thiab cov npoo, ua rau txo qis ntsuas qhov tseem ceeb. Cov khoom siv tsis huv no yog: roj thiab hws los ntawm cov yeeb yaj kiab lossis cov duab ua haujlwm ib puag ncig, uas yog ib qho chaw ua haujlwm ntawm lub cev, thiab tsim lub cev ua ke, uas ua rau lub cev muaj zog, cuam tshuam rau cov member kis tau.
Kev daws:Siv cov txheej txheem ntxuav cov qauv -} siv cov ntaub ntawv tawm tib yam li {}} purity isopropyl cawv los yog ib qho kev txiav txim siab sab nraud. Tom qab so, tso cov khoom tso rau hauv ib puag ncig huv si thiab tso cai rau cov kuab tshuaj kom yaj tag nrho. Hnav hmoov - Dawb nitrile hnab looj tes lub sijhawm thaum ua haujlwm kom tsis txhob muaj ib qho chaw xeem thiab tiv thaiv kev paug theem nrab.
PEM ntauv kom qhuav
Core Caum:Evaporation ntawm cov kua mem kua kuab ua kom muaj zog ntxiv, ua rau muaj teeb meem xws li cov teeb meem tawg thaum ntawv thov, uas tuaj yeem ua rau kev txhais lus, uas tuaj yeem ua rau kev tsis ncaj ncees. Cov chiv keeb ntau suav nrog ua tsis tiav rau lub ntsej muag tus cwj mem ntawm kev sim lossis kev sau tsis raug (tsis khaws cia nws inverted lossis kab rov tav li).
Kev daws:Rau kev ziab me, ntsug nias lub cwj mem ntsis rau hauv ib nplooj ntawv huv si - Daim ntawv dawb thiab maj mam kos 2-3 kab kom tso tawm tshiab mem kua. Yog hais tias qhov ntxeev yog tag nrho qhuav lossis txhaws lub cwj mem tam sim ntawd -}}}} yuav hloov cov kua mem. Tom qab siv txhua hnub, nco ntsoov Cap tus cwj mem nruj thiab khaws nws inverted kom ua kom lub ntsis noo noo. Khaws tus cwj mem kom deb ntawm cov cua sov thiab muaj zog airflow.
Ib puag ncig cov av noo
Core Caum:Thaum txheeb ze cov av noo ntau dua li 80%, noo noo cuam tshuam nrog cov txiaj ntsig hauv ob qho tib si ntawm cov khoom noj qab zib polar (piv txwv li tsiaj), txhim kho kom muaj kev ntsuas ntau dua; Thib ob, tus cwj mem nqus dej noo thiab ua rau muaj kev cuam tshuam tsawg-, 30-36 m), coj mus rau kev sib kis tsis zoo.
Kev daws:Qhov tsim nyog, tswj cov chaw kuaj mob thaum 23 ± 2℃thiab txheeb ze cov av noo ntawm 50 ± 5% pur siv cov ntsuas kub tsis tu ncua thiab av noo. Yog tias muaj kev tswj ib puag ncig tsis muaj nyob rau ntawm -, cov mob ob leeg cov khoom siv hauv tus qauv txheem tsawg kawg 2 teev ua ntej kev sim. Ua kev ntsuam xyuas kom deb ntawm cov chaw dej, thiab sau cov ntawv ntsuas kub thiab cov av noo rau kev siv yav tom ntej.
Cov Khoom Siv Khoom
Cov khoom muaj nyob hauv thaj chaw sib txawv ntawm cov khoom sib txawv cuam tshuam rau kev siv tshuaj ntsuam,
Cov ntaub ntawv ntxeem tau (piv txwv li, ntawv, ntaub, tshuaj loog rau "kev coj ua tsis ncaj ncees" kev sib cog lus tsis txaus ntseeg
Kev daws:Use specialized low-permeability Dyne pens containing anti-penetration resin components. Pre - qhuav cov khoom siv hauv 80℃qhov cub rau 30 feeb thiab txias rau chav kub ua ntej kev sim.
Hygroscopic cov ntaub ntawv (piv txwv li, nylon 6, acetate fiber, ntoo): Cov ntaub ntawv yooj yim nqus noo noo los ntawm huab cua, nce cov cheeb tsam polarity thiab ntsuas qhov tseem ceeb. Cov qhab nia hloov pauv tau yooj yim raws li cov nqi rov qab rau ib txwm tom qab ziab.
Kev daws:Siv ya raws -}}}}}}}}}}} ionistant Dyne pens nrog cov kuab tshuaj uas tsis yooj yim sib xyaw nrog dej. Mob cov khoom siv nyob rau hauv ib puag ncig qhuav (<30% RH) for at least 4 hours before testing. Select 3–5 test points on different areas of the material and use the average value as the final result to minimize deviations caused by material inhomogeneity.
Lub ntsiab
Txhawm rau kom ntseeg tau sai - kev tswjf, kev tswj hwm ib puag ncig qhuav, ua haujlwm ib puag ncig, thiab tus cwj mem- yam khoom sib xyaw. Ua ke cov no nrog cov txheej txheem kev ua haujlwm ua qauv. Muab cov teeb meem uas tau yooj yim xws li kev sib kis tau zoo thiab cwj mem kub taub, tom qab ntawd ib puag ncig ib puag ncig thiab cov khoom {}} hais txog cov xwm txheej. Cov txheej txheem no txo kev sib txawv thiab muab cov ntaub ntawv ntseeg tau rau kev txiav txim siab cov txheej txheem- ua.