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Brick crucible for vacuum induction furnace and preparation method thereof
The invention belongs to the technical field of vacuum smelting, and particularly relates to a brick crucible for a vacuum induction furnace and a preparation method thereof. The preparation method of the brick crucible for the vacuum induction furnace comprises the steps of preparation of refractory bricks, bricking of the brick crucible and baking of the brick crucible, when the brick crucible is bricked, two layers of refractory bricks are bricked in the vacuum induction furnace in a staggered joint mode to form the crucible bottom, the annular crucible middle located above the crucible bottom, and the crucible upper portion located above the crucible bottom; baking is conducted after bricking is completed to obtain a brick crucible finished product; and the refractory bricks are made of magnesium aluminate spinel and comprises the following components of, by mass, 90%-92% of MgO, 8%-9% of Al2O3, less than or equal to 0.5% of SiO2, less than or equal to 0.5% of CaO and less than or equal to 0.5% of Fe2O3. Compared with a traditional knotted crucible, the brick crucible for the vacuum induction furnace is greatly improved in strength, high-temperature alloy smelted through the brick crucible is higher in cleanliness, and the quality of the high-temperature alloy is effectively improved.
本发明属于真空冶炼技术领域，特别涉及一种真空感应炉用砖砌坩埚及其制备方法。本发明真空感应炉用砖砌坩埚的制备方法，包括耐火砖的制备、砖砌坩埚砌筑及砖砌坩埚烘烤的步骤，砌筑砖砌坩埚时在真空感应炉内部错缝砌筑两层耐火砖形成坩埚底部及位于其上方的环形的坩埚中部及坩埚上部，砌筑完成后进行烘烤，得到砖砌坩埚成品；所述耐火砖的材质为镁铝尖晶石，按质量分数计，所述耐火砖包括以下组分：MgO：90%~92%、Al2O3：8%~9%、SiO2≤0.5%、CaO≤0.5%，Fe2O3≤0.5%。本发明制备的真空感应炉用砖砌坩埚较传统打结坩埚在强度上有较大提升，且采用本发明砖砌坩埚冶炼出来的高温合金洁净度更高，有效地提高了高温合金质量。
Brick crucible for vacuum induction furnace and preparation method thereof
The invention belongs to the technical field of vacuum smelting, and particularly relates to a brick crucible for a vacuum induction furnace and a preparation method thereof. The preparation method of the brick crucible for the vacuum induction furnace comprises the steps of preparation of refractory bricks, bricking of the brick crucible and baking of the brick crucible, when the brick crucible is bricked, two layers of refractory bricks are bricked in the vacuum induction furnace in a staggered joint mode to form the crucible bottom, the annular crucible middle located above the crucible bottom, and the crucible upper portion located above the crucible bottom; baking is conducted after bricking is completed to obtain a brick crucible finished product; and the refractory bricks are made of magnesium aluminate spinel and comprises the following components of, by mass, 90%-92% of MgO, 8%-9% of Al2O3, less than or equal to 0.5% of SiO2, less than or equal to 0.5% of CaO and less than or equal to 0.5% of Fe2O3. Compared with a traditional knotted crucible, the brick crucible for the vacuum induction furnace is greatly improved in strength, high-temperature alloy smelted through the brick crucible is higher in cleanliness, and the quality of the high-temperature alloy is effectively improved.
本发明属于真空冶炼技术领域，特别涉及一种真空感应炉用砖砌坩埚及其制备方法。本发明真空感应炉用砖砌坩埚的制备方法，包括耐火砖的制备、砖砌坩埚砌筑及砖砌坩埚烘烤的步骤，砌筑砖砌坩埚时在真空感应炉内部错缝砌筑两层耐火砖形成坩埚底部及位于其上方的环形的坩埚中部及坩埚上部，砌筑完成后进行烘烤，得到砖砌坩埚成品；所述耐火砖的材质为镁铝尖晶石，按质量分数计，所述耐火砖包括以下组分：MgO：90%~92%、Al2O3：8%~9%、SiO2≤0.5%、CaO≤0.5%，Fe2O3≤0.5%。本发明制备的真空感应炉用砖砌坩埚较传统打结坩埚在强度上有较大提升，且采用本发明砖砌坩埚冶炼出来的高温合金洁净度更高，有效地提高了高温合金质量。
Brick crucible for vacuum induction furnace and preparation method thereof
一种真空感应炉用砖砌坩埚及其制备方法
RONG WENKAI (author) / PU YILONG (author) / ZHAO CHANGHONG (author) / LI CHENGLONG (author) / WANG SHIPU (author) / LI QING (author) / ZHONG YUGUO (author)
2021-11-05
Patent
Electronic Resource
Chinese
IPC:
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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