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今天结晶硅微粉厂家给大家具体介绍一下结晶硅微粉是如何制备出来的。
结晶态的二氧化硅矿物有石英砂、脉石英、粉石英。结晶硅微粉一般采用纯度较高的结晶型石英砂,破碎至适当粒度后,采用干法、湿法工艺研磨,然后通过旋风分级、沉降及水力旋流器等方法分离出粒度合格的硅微粉,经过磁选、酸洗、浮选等一系列步骤进行提纯,得到结晶硅微粉。
这样得到的硅微粉,其颗粒形状为不规则的多面体,为角形硅微粉。国内一般采用气流粉碎机制备超细硅微粉,其原理是利用高速气流的能量冲击硅微粉,使之互相碰撞、摩擦,从而使聚集体粉碎,这种方法可获得粒径在1~5μm之间的硅微粉。以高硬度钇稳定氧化锆球为研磨介质,用衬聚氨酯搅拌磨磨细石英砂并经过沉降分级,可获得SiO2质量分数为99.91%,粒径为1μm以下的高纯超细结晶硅微粉。
CHULEXIDU,GUIWEIFENDEQIUXINGHUADUIGUIWEIFENXINGNENGDEYINGXIANGYEJIAODA。QIUXINGGUIWEIFENYOUYUQIKELICHENGQIUXINGERJUYOUHENHAODELIUDONGXING,ZAILIUDONGXINGBUBIANDEQINGKUANGXIA,KEYITIGAOGUIWEIFENDETIANCHONGLIANG,TIANCHONGLVYUEGAO,FUHECAILIAODEREPENGZHANGXISHUJIUYUEXIAO,DAOREXISHUJIUYUEGAO。ERQIEYONGQIUXINGGUIWEIFENTIANCHONGDESUFENGLIAOYINGLIJIZHONGJIAOXIAO,QIANGDUJIAOGAO,DANGJIAOXINGGUIWEIFENDESUFENGLIAOYINGLIJIZHONGWEI1SHI,QIUXINGGUIWEIFENDEYINGLIJINWEI0.6。CIWAI,ZAISUFENGLIAODESHENGCHANGUOCHENGZHONG,QIUXINGGUIWEIFENJIAOJIAOXINGGUIWEIFENMOCAXISHUXIAO,DUIMOJUDEMOSUNMAN,KEYIJIANGMOJUDESHIYONGSHOUMINGYANZHANGYIBEI。
JIEJINGGUIWEIFENDEZHUYAOHUAXUECHENGFENSHISiO2,HANLIANGDA99.4 wt.%YISHANG,HAIHANYOUWEILIANGDEFe2O3HEAl2O3。YOUYUGUIWEIFENCHUNDUGAO,YINCIDIANDAOLVJIAODI,WEI5 ~30 μS·cm-1,SHIJUHEWUJUYOUJIAOHAODEJUEYUANXINGNENGHEKANGDIANHUXINGNENG。