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CN106083136A 一种碳化硅质大规格陶瓷蓄热体及其制备工艺 无效 - 撤回

一种碳化硅质大规格陶瓷蓄热体及其制备工艺
摘要：
一种碳化硅质大规格陶瓷蓄热体，其特征是所述蓄热体为柱体结构，蓄热体内部设有多个贯通柱体的孔道，所述蓄热体由无机粉料和添加剂烧结而成，其中无机粉料由以下重量配比的组分组成：碳化硅60重量份～70重量份，硅粉10重量份～30重量份，氮化硅5重量份～10重量份，氧化铝微粉2重量份～8重量份，二氧化硅2重量份～5重量份，氧化钙1.0重量份～2.5重量份、氮化硼1.0重量份～2.5重量份。本发明具有良好的成型性能和保形性能。采用本发明配方和生产方法，蓄热体孔道密集，壁厚薄，壁厚仅为1mm，截面尺寸大，截面尺寸大于100cm2，长径比高，长度达1000mm，所有孔道具有阻力小，积灰少，不易堵塞，排尘性能良好等特点。
摘要（英）：

A silicon carbide large-size ceramic heat accumulator is characterized in that the heat accumulator is of a cylinder structure, multiple pore channels through the cylinder are formed in the heat accumulator, and the heat accumulator is formed by sintering inorganic powder and an additive. The inorganic powder is prepared from, by weight, 60-70 parts of silicon carbide, 10-30 parts of silica powder, 5-10 parts of silicon nitride, 2-8 parts of alumina micro powder, 2-5 parts of silicon dioxide, 1.0-2.5 parts of calcium oxide and 1.0-2.5 parts of boron nitride. The inorganic powder is high in forming and shape preserving performance. By adopting the formula and the production method, the pore channels of the heat accumulator are dense, the wall thickness is small and is only 1mm, the section size is large and is larger than 100 cm<2>, the length-diameter ratio is large, the length reaches 1000 mm, and all the pore channels have the advantages of being small in resistance, small in dust deposition amount, not prone to blockage and good in dust discharge performance.

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