Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation process of superfine silicon carbide powder
The invention discloses a method for preparing silicon carbide superfine ceramic powder, which comprises the following steps: 1) uniformly mixing 40-70% by mass of carbon black powder, 0-30% by mass of silicon dioxide powder, 0-30% by mass of crystalline flake graphite powder and 0-70% by mass of fused quartz powder to obtain a raw material; (2) putting the raw materials into a ball mill, and carrying out ball milling until the particle size is less than 20 microns to obtain mixed powder; the invention discloses a preparation method of a ceramic material containing silicon carbide, which comprises the following steps of (1) uniformly mixing powder, (2) uniformly mixing the powder, (3) putting the uniformly mixed powder into a mold, changing the powder into a blocky sample in a cold pressing manner under the pressure of 10-50MPa, and maintaining the pressure for 2-8 minutes, and (4) heating a blank and cooling to obtain the ceramic material containing silicon carbide. The preparation method is simple, reduces the raw material cost and can be used for large-scale preparation.
本发明公开了一种制备碳化硅超细陶瓷粉体的方法，包括如下步骤：1）按照质量分数，将40~70%的炭黑粉末、0~30%的二氧化硅粉末、0~30%鳞片石墨粉、0~70%的熔石英粉末混合均匀，得到原料；2）将原料置于球磨机中，球磨至粒径小于20μm得到混合粉料；3）将均匀混合的粉体置于模具中，采用冷压的方式使其变为块状样品，压力为10‑50MPa，保压2‑8分钟；4）加热坯料后降温即得所述含有碳化硅的陶瓷材料。该制备方法简单，降低了原料成本，可大规模制备。
Preparation process of superfine silicon carbide powder
The invention discloses a method for preparing silicon carbide superfine ceramic powder, which comprises the following steps: 1) uniformly mixing 40-70% by mass of carbon black powder, 0-30% by mass of silicon dioxide powder, 0-30% by mass of crystalline flake graphite powder and 0-70% by mass of fused quartz powder to obtain a raw material; (2) putting the raw materials into a ball mill, and carrying out ball milling until the particle size is less than 20 microns to obtain mixed powder; the invention discloses a preparation method of a ceramic material containing silicon carbide, which comprises the following steps of (1) uniformly mixing powder, (2) uniformly mixing the powder, (3) putting the uniformly mixed powder into a mold, changing the powder into a blocky sample in a cold pressing manner under the pressure of 10-50MPa, and maintaining the pressure for 2-8 minutes, and (4) heating a blank and cooling to obtain the ceramic material containing silicon carbide. The preparation method is simple, reduces the raw material cost and can be used for large-scale preparation.
本发明公开了一种制备碳化硅超细陶瓷粉体的方法，包括如下步骤：1）按照质量分数，将40~70%的炭黑粉末、0~30%的二氧化硅粉末、0~30%鳞片石墨粉、0~70%的熔石英粉末混合均匀，得到原料；2）将原料置于球磨机中，球磨至粒径小于20μm得到混合粉料；3）将均匀混合的粉体置于模具中，采用冷压的方式使其变为块状样品，压力为10‑50MPa，保压2‑8分钟；4）加热坯料后降温即得所述含有碳化硅的陶瓷材料。该制备方法简单，降低了原料成本，可大规模制备。
Preparation process of superfine silicon carbide powder
一种超细碳化硅粉体的制备工艺
WEN GUANGWU (Autor:in) / SUN ZHIYUAN (Autor:in) / WANG ZHEN (Autor:in)
29.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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