Movable type high temperature smelting furnace and melt crystallization control process after high temperature smelting
A technology of high-temperature smelting and melt crystallization, which is applied in the direction of crystallization separation, furnace, furnace type, etc., can solve problems such as short melt crystallization time, affecting product quality, coarse and uneven grains of the final product, and achieve fine and uniform grains , The effect of prolonging the holding time
Active Publication Date: 2014-03-26
LIAONING HUAGAO NEW MATERIAL CO LTD
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Problems solved by technology
[0005] It can be seen that in the prior art, due to the rapid cooling of the melt and the short crystallization time of the melt, the grains of the final product are coarse and uneven, which affects the quality of the product.
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[0033] Do not dump the zirconia melt, but keep it in the furnace for heat preservation, and cool down slowly with the furnace. Cooling process such as Figure 6 , the melt undergoes slow crystallization for about 19 hours, and the temperature drops below 1000°C to complete the crystallization. Lift the furnace body away and take out the crystallized product. Such as Figure 7 As shown, the crystallized product is scanned to detect a particle size range of about 1 to 3 microns, and a high-quality product with fine and uniform crystal grains is obtained.
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Abstract
The invention provides a movable type high temperature smelting furnace and melt crystallization control process after high temperature smelting. The high temperature smelting furnace can be moved, after smelting is completed, the whole set of furnace is drawn out through electric traction and can be arranged on an appropriate position, and melt in the furnace slowly cools down and crystallizes along with leopard prints of the furnace, so that a high-quality product with small crystalline particles is obtained. The movable type high temperature smelting furnace and the melt crystallization control process after high temperature smelting have the advantages that in the crystallizing control process, the melt cannot be poured out, instead cools down and crystallizes in the smelting furnace along with the furnace, insulation time of crystallizing is prolonged, and the melt slowly crystallizes to obtain the high-quality product with the small crystalline particles.
Description
technical field [0001] The invention relates to the field of melt crystallization control, in particular to a movable high-temperature smelting furnace and a process for controlling melt crystallization after high-temperature smelting. Background technique [0002] In the prior art, the melt (such as zirconia) melted at high temperature is usually poured directly onto the ground or into a special mold, and then the melt is cooled rapidly in the air to complete crystallization. Such as: [0003] An embodiment using the crystallized zirconia melt of the prior art, the zirconia melt is poured directly onto the ground, the zirconia melt is piled up on the ground, cooled rapidly in the air under normal pressure, and the zirconia melt is heated from a high temperature above 2000°C After about 1.5 hours, the temperature dropped rapidly below 1000°C, and the crystallization of zirconia was completed. The cooling process is as figure 1 , the crystallized product is scanned to dete...
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IPC IPC(8): F27B17/00B01D9/00
Inventor 范志强
Owner LIAONING HUAGAO NEW MATERIAL CO LTD
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