Ufa wa silicon micro ndi chinthu chopanda poizoni, chopanda kukoma komanso chopanda kuipitsa, chomwe chimapangidwa ndi quartz yachilengedwe (SiO2) kapena quartz yosakanikirana (SiO2 yopanda mawonekedwe a quartz yachilengedwe ikasungunuka ndi kuzizira kutentha kwambiri) kudzera mukuphwanya, kupukuta, kuyandama, kutsuka pickling, kukonza madzi oyera kwambiri ndi njira zina. Kodi ntchito za ufa wa silika ndi ziti? HCMilling (Guilin Hongcheng) ndiye wopangasilicon yaying'onomphero yopera ufaZotsatirazi zikufotokoza momwe mungagwiritsire ntchito ufa wa silicon micro:

Makhalidwe a ufa wa silicon micro ndi awa: refractive index 1.54-1.55, Mohs hardness pafupifupi 7, density 2.65g/cm3, melting point 1750 ℃, dielectric constant pafupifupi 4.6 (1MHz). Magwiridwe ake akuluakulu ndi awa:

(1) Chotetezera kutentha chabwino: chifukwa cha kuyera kwambiri kwa ufa wa silicon, kuchuluka kochepa kwa zinthu zodetsedwa, magwiridwe antchito okhazikika komanso kutetezera kutentha kwamagetsi kwabwino, chinthu chochiritsidwacho chili ndi magwiridwe antchito abwino komanso kukana kwa arc.

(2) Zingachepetse kutentha kwa exothermic peak kwa kuchiritsa kwa epoxy resin, kuchepetsa kufalikira kwa mzere ndi kuchepa kwa chinthu chochiritsidwa, motero kuchotsa kupsinjika kwamkati kwa chinthu chochiritsidwa ndikuletsa ming'alu.

(3) Kukana dzimbiri: ufa wa silicon micro si wosavuta kuchita ndi zinthu zina, ndipo suchita mankhwala ndi ma acid ndi alkali ambiri. Tinthu take timaphimbidwa mofanana pamwamba pa chinthucho, ndipo timatha kukana dzimbiri mwamphamvu.

(4) Kugawa kukula kwa tinthu tating'onoting'ono ndi koyenera, komwe kungachepetse ndikuchotsa kugawanika kwa nthaka ndi kugawa kwa nthaka panthawi yogwiritsa ntchito; Kungawonjezere mphamvu yokoka ndi kupsinjika kwa chinthu chotsukidwa, kuonjezera kukana kutopa, kuwonjezera kutentha kwa chinthu chotsukidwa, ndikuwonjezera kuchedwa kwa moto.

(5) Ufa wa silicon wothiridwa ndi silane coupling agent umakhala ndi chinyezi chabwino ku ma resin osiyanasiyana, umatha kulowetsedwa bwino, umasakanikirana mosavuta komanso susakanikirana.

(6) Kuonjezera ufa wa silica ngati chodzaza mu utomoni wachilengedwe sikuti kumangowonjezera mphamvu za chinthu chokonzedwa, komanso kumachepetsa mtengo wa chinthucho.

Kugwiritsa ntchito kwambiri ufa wa silicon:

(1) Kugwiritsa ntchito mu CCL: Ufa wa silicon micro ndi mtundu wa filler yogwira ntchito. Imatha kusintha kutenthetsa, kuyendetsa kutentha, kukhazikika kwa kutentha, kukana asidi ndi alkali (kupatula HF), kukana kukwiya ndi kuchedwa kwa moto wa CCL, kusintha mphamvu yopindika ndi kukhazikika kwa bolodi, kuchepetsa kuchuluka kwa kutentha kwa bolodi, ndikukweza nthawi yokhazikika ya dielectric ya CCL. Nthawi yomweyo, ufa wa silicon micro umagwiritsidwa ntchito kwambiri mumakampani opanga laminate yokhala ndi mkuwa chifukwa cha zinthu zake zambiri zopangira komanso mtengo wotsika, zomwe zingachepetse mtengo wa laminate yokhala ndi mkuwa.

(2) Kugwiritsa ntchito zinthu zopangira m'miphika ya epoxy resin: Monga chimodzi mwa zinthu zodzaza zinthu zopangira m'miphika ya epoxy resin, ufa wa silicon micro uli ndi gawo lodziwikiratu pakukweza mphamvu zina zakuthupi za epoxy resin. Mwachitsanzo, kuwonjezera ufa wogwira ntchito wa silicon micro ku zinthu zopangira m'miphika ya epoxy resin kungathandize kwambiri kukana mphamvu kwa zinthu zopangira m'miphika ya epoxy resin ndikuchepetsa kukhuthala kwa zinthu zopangira m'miphika ya epoxy resin.

(3) Kugwiritsa ntchito mu epoxy plastic sealant: epoxy molding compound (EMC), yomwe imadziwikanso kuti epoxy resin molding compound ndi epoxy plastic sealant, ndi mtundu wa powder molding compound wosakaniza ndi epoxy resin monga matrix resin, high-performance phenolic resin monga curing agent, filler monga silicon micro powder, ndi zowonjezera zosiyanasiyana. Mu kapangidwe ka EMC, silicon powder ndiye filler yomwe imagwiritsidwa ntchito kwambiri, ndipo chiŵerengero cha kulemera kwa silicon powder ndi epoxy molding compound ndi 70% ~ 90%.

Njira yopangira ufa wa silicon micro nthawi zambiri imakhala yofanana malinga ndi makhalidwe a miyala yaiwisi, mineralology ya njira ya ore ndi makhalidwe ena komanso zofunikira za ogwiritsa ntchito pa mtundu wa chinthu. Kupanga ufa wa silicon superfine woyera kwambiri kumapezeka pogaya kapena kugaya mopitirira muyeso pogwiritsa ntchito mchenga woyera kwambiri. Kusankha zida zokonzera ndikofunikira kwambiri, makamaka kusankha zida zogaya ndi kugaya mopitirira muyeso. Kusankha zida zogaya ndi kugaya mopitirira muyeso kudzakhudza mwachindunji kutulutsa ndi mtundu wa zinthu zomaliza ndi mawonekedwe a tinthu ta ufa. HCMilling (Guilin Hongcheng), monga wopanga mphero yogaya ufa wa silicon micro, HLMX silicon micro powder vertical mill yathu ndi chida chabwino kwambiri chopangira ufa wa silicon micro, womwe uli ndi zabwino zambiri monga mphamvu yayikulu, malo apadera, kuchuluka kochepa kwa zodetsa, ndi zina zotero. Dongosolo logawa mpweya wachiwiri limakonzedwa, ndipo chogawa ndi fan zimayendetsedwa ndi malamulo osinthira liwiro pafupipafupi, kotero magwiridwe antchito a ufa ndi okwera; Zozungulira za ufa wa mutu umodzi ndi mitu yambiri zimagwiritsidwa ntchito kuwongolera bwino kusalala kwa zinthu zomalizidwa; Kupyapyala kwa chinthu chomalizidwa kumasiyana kuyambira 3 μ M mpaka 22 μ m. Zinthu zosiyanasiyana zoyenerera zimapezeka.

Ma HCMsilicon yaying'onomphero yopera ufayadutsa malire a mphamvu ya mphero zina zabwino kwambiri monga mphero yachikhalidwe yoyendera mpweya ndi mphero yogwedera, yokhala ndi mphamvu yotulutsa 4-40t/h pa ola limodzi, komanso mphamvu yogwiritsidwa ntchito yotsika kwambiri kuposa zida zina zofanana zogayira zabwino kwambiri. Ndi yosamalira chilengedwe komanso yosunga mphamvu.ssilicon micromphero yopera ufaNgati muli ndi zofunikira zoyenera, chonde titumizireni uthenga kuti mudziwe zambiri ndipo mutipatse malangizo otsatirawa:

Dzina la zinthu zopangira

Kusalala kwa chinthu (maukonde/μm)

mphamvu (t/h)