ozi

Isi ihe mejupụtara kemịkalụ nke beads na-ese n'elu bụ oxide nke silicon na aluminom, nke ọdịnaya nke silicon dioxide dị ihe dị ka 50-65%, ọdịnaya nke aluminom oxide bụ ihe dịka 25-35%.N'ihi na agbaze ebe nke silica dị elu dị ka 1725 ℃ na nke alumina bụ 2050 ℃, ha niile bụ elu refractory ihe.Ya mere, beads na-ese n'elu mmiri nwere nnukwu refractoriness, n'ozuzu ruo 1600-1700 ℃, na-eme ka ha magburu onwe elu-arụmọrụ refractories.Ibu dị arọ, mkpuchi ọkụ.Mgbidi bead nke na-ese n'elu mmiri dị gịrịgịrị na oghere, oghere ahụ dị obere oghere, naanị obere gas (N2, H2 na CO2, wdg), na njikwa okpomọkụ na-adị ngwa ngwa ma dị obere.Ya mere, beads na-ese n'elu mmiri abụghị naanị ìhè na ịdị arọ (oke arọ 250-450 kg / m3), kamakwa ọ dị mma na mkpuchi okpomọkụ (0.08-0.1 nke okpomọkụ na okpomọkụ), nke na-atọ ntọala maka ha ịrụ ọrụ dị mkpa. n'ọhịa nke ihe mkpuchi ọkụ ọkụ.

Isi ike na ike dị elu.N'ihi na bead na-ese n'elu mmiri bụ iko siri ike nke silica alumina mineral kpụrụ (quartz na mullite), ike ya nwere ike iru Mohs 6-7, ike nrụgide nwere ike iru 70-140mpa, na njupụta ya bụ 2.10-2.20g / cm3. , nke ya na nkume nkume.Ya mere, beads na-ese n'elu mmiri nwere ike dị elu.N'ozuzu, ihe ndị na-egbuke egbuke ma ọ bụ oghere dị ka perlite, nkume na-esi nri, diatomite, sepiolite na vermiculite gbasaa nwere adịghị ike na ike.Ngwaahịa na-ekpo ọkụ ọkụ ma ọ bụ ngwaahịa na-eme ka ọkụ na-eme ka ọ bụrụ ihe na-adịghị mma nke ike na-adịghị mma.Mmejọ ha bụ naanị ike nke beads na-ese n'elu mmiri, yabụ beads na-ese n'elu mmiri nwere uru asọmpi karịa yana ojiji ka ukwuu.The urughuru size dị mma na kpọmkwem n'elu ebe bụ nnukwu.Ogo okike nke beads na-ese n'elu mmiri bụ 1-250 μ M. Ebe a kapịrị ọnụ bụ 300-360cm2 / g, yiri nke ciment.Ya mere, enwere ike iji beads na-ese n'elu mmiri ozugbo na-enweghị egweri.

Ịdị mma nwere ike izute mkpa dị iche iche ngwaahịa, ndị ọzọ fechaa thermal mkpuchi ihe bụ n'ozuzu oke urughuru size (dị ka perlite, wdg), ma ọ bụrụ na egweri ga-ukwuu ibu ikike, nke mere na thermal mkpuchi na-ebelata nke ukwuu.N'akụkụ a, beads na-ese n'elu mmiri nwere uru.Ihe mkpuchi eletrik dị mma.Akpụkpọ ụkwụ na-ese n'elu mmiri bụ ihe mkpuchi mkpuchi mara mma na anaghị arụ ọrụ.N'ozuzu, nguzogide nke insulator na-ebelata na mmụba nke okpomọkụ, mana nguzogide nke bead na-ese n'elu mmiri na-abawanye na mmụba nke okpomọkụ.Uru a enweghị ihe mkpuchi mkpuchi ndị ọzọ.Ya mere, ọ nwere ike ime ngwaahịa mkpuchi n'okpuru ọnọdụ okpomọkụ dị elu.

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Oge nzipu: Feb-01-2021