Ntoo ya raws cov ntsiab lus tau txhais, thiab lub ntsuas dej noo tuaj yeem siv rau ntau yam kev siv.
kuv lub teb chaws txhais cov dej noo ntawm cov ntoo raws li qhov feem pua ntawm qhov hnyav ntawm cov dej noo muaj nyob hauv cov ntoo thiab qhov hnyav ntawm cov ntoo tom qab ziab.
Cov ntsiab lus noo noo tuaj yeem xam raws li qhov hnyav ntawm cov ntoo qhuav, thiab cov nqi suav yog hu ua cov ntsiab lus noo noo, thiab hu ua cov ntsiab lus noo noo (W, feem pua). Kev suav cov mis:
W=(Gs-Ggo)/Ggo × 100 feem pua ,
W1=(Gs-Ggo)/Gs × 100 feem pua
Ntawm lawv: W — Ntoo noo noo cov ntsiab lus; W1 — Ntoo txheeb ze noo noo cov ntsiab lus
Gs - ntub ntoo hnyav;
Ggo — Gauze qhuav hnyav.
Lub teb chaws tus qauv: cov dej noo yog 3.0 -10 0 feem pua .()
noo noo cov ntsiab lus ntawm ntoo
Cov dej hauv cov ntoo sawv tsis yog tsuas yog cov khoom tsim nyog rau kev loj hlob ntawm tsob ntoo, tab sis kuj yog cov cab kuj rau cov ntoo kom thauj ntau yam khoom.
Ib yam li ntawd, cov dej noo hauv cov ntoo cuam tshuam rau ob qho tib si cia ntoo thiab kev siv ntoo rau kev ua haujlwm.
Ntau hom ntoo muaj qhov sib txawv ntawm cov dej noo. Kev hloov pauv ntawm cov dej noo ntawm cov ntoo cuam tshuam rau lub zog ntawm cov ntoo hauv qee qhov ntau,
Rigidity, hardness, hnav tsis kam, thermal conductivity, permeability, calorific nqi, ntim stability, thiab lwm yam.
Muaj ob txoj hauv kev los nthuav qhia cov dej noo ntawm cov ntoo.
