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Ultrahigh-heat-conductivity silica brick and preparation method thereof
The invention discloses a silica brick with ultrahigh thermal conductivity and a preparation method thereof. The silica brick comprises the following raw materials in parts: 25-45 parts of silica sand particles with the particle size of 3.5-1.65 mm; 40 to 55 parts of silica sand particles with the particle size of 1.65 to 0 mm; 16-26 parts of silica sand fine powder with a particle size of less than 0.088 mm; 1-5 parts of silica powder; 2-4 parts of calcium hydroxide powder; 1 to 1.5 parts of fluorite powder; 0.1 to 0.5 part of a catalyst; 1 to 3 parts of bentonite; 0.2 to 0.4 part of iron scale; 2-5 parts of ferrosilicon alloy powder; and 0.8 to 1.5 parts of a binding agent. The preparation method of the silica brick with ultrahigh thermal conductivity comprises the following steps: S110, dry mixing; s120, carrying out wet mixing; s130, making a blank; and S140, firing is carried out. The method has the beneficial effects that the non-oxide alloy powder forms a new phase silicon oxynitride binding phase under the action of the catalyst by adding the non-oxide alloy powder and the catalyst and filling nitrogen in the roasting process, so that the heat-conducting property of the silica brick is improved, and the heat conductivity can reach 2.6-2.8 W/m.k.
本发明公开了一种超高导热的硅砖及其制备方法，包括以下份数的原料：粒度为3.5～1.65mm的硅砂颗粒25～45份；粒度为1.65～0mm的硅砂颗粒40～55份；粒度＜0.088mm硅砂细粉16～26份；硅微粉1～5份；氢氧化钙粉2～4份；萤石粉1～1.5份；催化剂0.1～0.5份；膨润土1～3份；铁鳞0.2～0.4份；硅铁合金粉2～5份；及结合剂0.8～1.5份。一种超高导热的硅砖的制备方法，包括以下步骤：S110、干混；S120、湿混；S130、制坯；S140、烧制。有益效果在于：通过添加非氧化物合金粉和催化剂，在焙烧过程中充入氮气的方法，使得非氧化物合金粉在催化剂的作用下，形成新的物相氧氮化硅结合相，从而提高硅砖的导热性能，导热率可达2.6‑2.8W/m.k。
Ultrahigh-heat-conductivity silica brick and preparation method thereof
The invention discloses a silica brick with ultrahigh thermal conductivity and a preparation method thereof. The silica brick comprises the following raw materials in parts: 25-45 parts of silica sand particles with the particle size of 3.5-1.65 mm; 40 to 55 parts of silica sand particles with the particle size of 1.65 to 0 mm; 16-26 parts of silica sand fine powder with a particle size of less than 0.088 mm; 1-5 parts of silica powder; 2-4 parts of calcium hydroxide powder; 1 to 1.5 parts of fluorite powder; 0.1 to 0.5 part of a catalyst; 1 to 3 parts of bentonite; 0.2 to 0.4 part of iron scale; 2-5 parts of ferrosilicon alloy powder; and 0.8 to 1.5 parts of a binding agent. The preparation method of the silica brick with ultrahigh thermal conductivity comprises the following steps: S110, dry mixing; s120, carrying out wet mixing; s130, making a blank; and S140, firing is carried out. The method has the beneficial effects that the non-oxide alloy powder forms a new phase silicon oxynitride binding phase under the action of the catalyst by adding the non-oxide alloy powder and the catalyst and filling nitrogen in the roasting process, so that the heat-conducting property of the silica brick is improved, and the heat conductivity can reach 2.6-2.8 W/m.k.
本发明公开了一种超高导热的硅砖及其制备方法，包括以下份数的原料：粒度为3.5～1.65mm的硅砂颗粒25～45份；粒度为1.65～0mm的硅砂颗粒40～55份；粒度＜0.088mm硅砂细粉16～26份；硅微粉1～5份；氢氧化钙粉2～4份；萤石粉1～1.5份；催化剂0.1～0.5份；膨润土1～3份；铁鳞0.2～0.4份；硅铁合金粉2～5份；及结合剂0.8～1.5份。一种超高导热的硅砖的制备方法，包括以下步骤：S110、干混；S120、湿混；S130、制坯；S140、烧制。有益效果在于：通过添加非氧化物合金粉和催化剂，在焙烧过程中充入氮气的方法，使得非氧化物合金粉在催化剂的作用下，形成新的物相氧氮化硅结合相，从而提高硅砖的导热性能，导热率可达2.6‑2.8W/m.k。
Ultrahigh-heat-conductivity silica brick and preparation method thereof
一种超高导热的硅砖及其制备方法
XU DAYAN (author) / LIU YONG (author) / ZHAI WANYU (author) / WANG RUI (author) / CHENG YAPING (author) / FAN JUNYAO (author) / FAN YAJUAN (author) / ZHU JUNRU (author) / LIU MINGZHE (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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