Dab tsi yog qhov txawv ntawm micro-silica hmoov thiab micro-silica hmoov?

Me Me Quartz Particles: Feem ntau, quartz (silicon dioxide) cov ntsiab lus siab heev, siab tshaj 99%, yog li nws hu ua silica micro hmoov.

Silica micro hmoov yog cov khoom siv dav siv hauv cov khoom siv tsis yog hlau nrog cov khoom siv hluav taws xob zoo, tsis tshua muaj thermal expansion coefficient, thiab siab thermal conductivity. Cov khoom siv ntawm silica micro hmoov yog tsim los ntawm cov ntshiab quartz hmoov ua tiav los ntawm cov txheej txheem sib tsoo superfine. Nws muaj qhov zoo ntawm qhov siab dawb, cov khoom zoo, qhov tsim nyog particle loj faib, thaj chaw loj loj, kev ua haujlwm zoo heev, thiab siab purity. Nws yog dav siv nyob rau hauv coatings, xim, adhesives, silicone roj hmab, precision casting, high-qib ceramics, epoxy resin potting cov ntaub ntawv, thiab raws li rwb thaiv tsev casting cov ntaub ntawv rau cov khoom siv hluav taws xob zoo tib yam thiab high-voltage Cheebtsam, yas ntim cov ntaub ntawv thiab potting cov ntaub ntawv rau integrated. circuits, hmoov txheej, tiv thaiv txheej ntawm vuam electrodes, thiab lwm yam resin fillers.

Silica micro hmoov zoo nkaus li grey, nrog cov khoom kheej kheej uas zoo heev, nrog cov khoom zoo tshaj plaws yog tsawg dua {{0}}.01 μm thiab qhov nruab nrab particle loj ntawm 0.1-0.3 μm. Nyob rau hauv chav tsev kub, nws yooj yim tsim xoob blocks nrog siab gelling thiab adsorption muaj peev xwm. Nws yog dav siv nyob rau hauv hydropower engineering, refractory cov ntaub ntawv, txoj kev loj, txuas hniav, tunnels, tshuaj ceramics, roj hmab, thiab lwm yam lag luam.

Tshuaj muaj pes tsawg leeg thiab cov ntsiab lus ntawm Silica Micro Powder:

Tshuaj muaj pes tsawg leeg thiab cov ntsiab lus ntawm Silica Micro Powder:

SiO2: 92.8%

Al2O3: 0.76%

Fe2O3: 0.52%

CaO: 0.31%

MgO: 0.53%

C: 1.5%

K2O: 2.2%

Na2O: 0.58%

Poob ntawm Ignition: 0.8%

Particle Size Distribution of Silica Micro Powder:

0-0.3 μm: 44.8%

0.3-0.5 μm: 20.2%

0.5-0.7 μm: 14.6%

0.7-1 μm: 14.4%

1-5 μm: 10.7%

Microsilica (Silica Fume): Microsilica, los yog silica fume, yog amorphous, powdery daim ntawv ntawm silicon dioxide (SiO2) sau siv tshwj xeeb tsim cov plua plav collectors los ntawm flue roj thaum lub sij hawm tsim ferrosilicon thiab industrial silicon. Qhov nruab nrab particle loj ntawm microsilica yog 0.1-0.15 μm, uas yog ob peb puas npaug me dua qhov nruab nrab particle loj ntawm cement. Nws muaj thaj chaw tshwj xeeb ntawm 15-27 m2/g thiab nthuav tawm cov dej num muaj zog.

Borida's Silica Micro Powder Classification: Raws li SiO2 cov ntsiab lus, Borida faib nws cov khoom rau hauv peb qhov tshwj xeeb: 85%, 90%, thiab 95%. Lawv lub cev muaj zog thiab tshuaj muaj pes tsawg leeg yog raws li nram no:

1.Basic Physical Properties of Silica Micro Powder:

• Daim ntawv: Amorphous ultrafine (non-crystalline) hmoov
• Xim Xim: Grey-dawb (naturally dawb, darkens nrog nce ceev)
• Qhov chaw tshwj xeeb: 15-27 m2/g
• Loose Bulk Density: 150-200 kg/m3
• Kev Ua Haujlwm Index: Ntau dua lossis sib npaug li 85%
• Kev xav tau ntawm dej: Tsawg dua lossis sib npaug li 125%

2.Main Chemical Composition ntawm Silica Micro Powder: Cov tshuaj tseem ceeb yog SiO2, nrog rau cov ntsiab lus ntawm 85-95%. Lwm cov ntsiab lus suav nrog Fe2O3, Al2O3, CaO, K2O, Na2O, MgO, thiab C.

Vim nws cov khoom zoo heev thiab tshwj xeeb ntawm lub cev thiab tshuaj lom neeg, tsim lub teb chaws hauv Tebchaws Europe, Amelikas, thiab Nyij Pooj tau ua kev tshawb fawb thiab siv cov microsilica hauv cov pob zeb ua haujlwm siab, cov cement muaj zog, cov khoom siv refractory, thiab lwm yam kev lag luam txij li xyoo 1980s. Lawv tau tsim ua tiav thiab ua tiav cov qauv zoo rau microsilica hauv ntau daim ntawv thov. Tam sim no, kev lag luam thoob ntiaj teb kev tsim khoom thiab muag ntim ntawm microsilica yog kwv yees li 500, 000-600, 000 tons hauv ib xyoos, feem ntau yog siv rau hauv cov ntaub ntawv muaj zog refractory thiab kev lag luam kev tsim kho (cov khoom siv pob zeb thiab cov cement) ). Raws li cov khoom lag luam ntawm ferrosilicon alloy, hlau silicon, thiab zirconium oxide kev lag luam, cov peev txheej raug txwv, thiab cov khoom lag luam txawv teb chaws poob qis ntawm kev thov.