Nkag siab txog MDF hmoov txheej
Hmoov txheej ntawm cov hlau nto yog tsim tau zoo, ruaj khov heev thiab muaj kev tswj hwm qib zoo. Yuav kom nkag siab yog vim li cas MDF hmoov txheej thiab hlau nto hmoov txheej Nws yog qhov sib txawv heev, nws yog ib qho tsim nyog yuav tsum nkag siab txog cov yam ntxwv ntawm MDF. Nws yog generally ntseeg tias qhov sib txawv tseem ceeb ntawm cov hlau thiab MDF yog hluav taws xob conductivity. Qhov no tej zaum yuav muaj tseeb nyob rau hauv cov nqe lus ntawm cov conductivity kiag li; Txawm li cas los xij, nws tsis yog qhov tseem ceeb tshaj plaws rau MDF hmoov txheej
Feem ntau, MDF hmoov txheej nrog rau saum npoo tsis kam ntawm 1010Ω thiab 1011Ω muab kev ua haujlwm txaus. Standard MDF nyob rau hauv chav tsev kub muaj ib tug nto resistivity ntawm txog 1012Ω. Los ntawm preheating MDF, ntxiv me me ntawm additives, los yog siv MDF, los yog ob qho tib si, cov no tau yooj yim kho cov conductivity ntawm MDF rov qab mus rau ntau yam xav tau.
Txawm li cas los xij, qhov sib txawv loj dua ntawm cov hlau thiab MDF yog thermal conductivity. Table 1 qhia cov thermal conductivity ntawm ntau yam ntaub ntawv. Lub thermal conductivity ntawm MDF tsuas yog 0.07 [W / (m•K)]. Aluminium hmoov txheej muaj cov thermal conductivity tsawg dua li txhuas thiab yog cov feem ntau siv substrates. Qhov ntsuas kub no nyob rau hauv MDF substrate nthuav tawm ntau yam teeb meem rau cov hmoov txheej
MDF yog ib daim pam asbestos nrog tib lub thermal conductivity zoo li asbestos pam, thiab yog cov khoom siv rau cov khoom siv tua hluav taws thiab cov hnab looj tes tiv thaiv kub. Yog li ntawd, MDF siv sijhawm ntev los ua kom sov thiab txias. Thaum cua sov thiab cua txias, qhov kub thiab txias ntawm MDF yuav txawv. Cov cua kub saum npoo ntawm ib feem ntawm MDF yog qhov sib txawv ntawm qhov kub thiab txias ntawm ntug ntawm lwm qhov, thiab qhov tshwm sim no tsis pom tseeb thaum txau txhuas.
Tsis tas li ntawd, txhawm rau kom tau txais cov hmoov zoo zoo, peb yuav tsum ua tib zoo tswj ntau yam khoom ntawm MDF, xws li cov khoom tiav, polishability, outgassing, tsis kam tawg ntawm qhov kub thiab txias, thiab lwm yam khoom. Ib qho tseem ceeb ntawm kev ua tau zoo ntawm MDF yog yooj yim cuam tshuam los ntawm MDF cov txheej txheem tsim khoom thiab kev sib txuas nrog lub zog ntawm MDF. Qhov no yuav tsum nyob rau theem siab nyob rau hauv daim ntawv cog lus muaj zog.
Tag nrho cov nyob rau hauv tag nrho cov, MDF yuav tsum muaj tshav kub tsis kam, hluav taws xob conductivity thiab zoo polishability. Hmoov zoo, cov tuam txhab tsim MDF tau tsim cov vaj huam sib luag no. Qhov tseeb, qee cov tuam txhab MDF tau pib ua lag luam MDF rau cov hmoov txheej.