共查询到20条相似文献,搜索用时 125 毫秒
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玻璃熔制是将合格的配合料经过高温加热,熔融制成符合成形要求的均匀玻璃液的过程.玻璃的熔制是熔融法生产玻璃的重要环节,在合格配合料的基础上进行合理的熔制,就为得到优质的玻璃制品提供了保证.在玻璃生产中,影响产品质量最常见的缺陷有气泡、结石、条纹等.这些缺陷往往都是由于熔制不善而产生的. 相似文献
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Flutank玻璃熔制过程三维计算机模拟软件系统的应用(1)——浮法熔窑保温对玻璃熔制质量的影响 总被引:3,自引:1,他引:3
利用Flutank玻璃熔制过程三维计算机模拟软件研究了浮法熔窑不同部位保温对玻璃熔制、澄清、均化质量的影响.评价指标包括池内玻璃液温度场、速度场、砂粒熔化时间、玻璃液回流量、回流耗热、液流澄清因子分布、澄清气泡消除和逸出情况、出料口玻璃液温度等.结果表明:窑池保温可提高玻璃液温度、缩短熔化时间、增加澄清因子、降低火焰温度,同时,它也增加回流以及微小气泡(半径小0.1mm)随出料流流出池窑的可能性.Flutank模拟软件还可用于窑体保温后火焰温度制度的调整匹配和冷却部液面冷却强度的确定. 相似文献
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燃煤气浮法线的玻璃缺陷与熔制制度 总被引:1,自引:0,他引:1
对玻璃缺陷的形成与熔制制度的关系作了理论与实践上的简扼描述,根据实际经验提出了减少熔制过程所造成缺陷的方法,主要用于指导生产. 相似文献
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利用二次资源制备黑色微晶玻璃熔制工艺的研究 总被引:1,自引:0,他引:1
本文探讨了黑色微晶玻璃熔制工艺和特殊性,指出该类玻璃在熔制过程中存在着明显的上,下层成份差别,熔制时间,温度对晶核剂S^-1,F^-保留量的影响;如何消除气泡以及必须重视对耐火材料的选择。 相似文献
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石灰石粒度对平板玻璃熔制的影响 总被引:1,自引:0,他引:1
石灰石是平板玻璃生产中的主要原料,其粒度对玻璃熔化质量存在明显的影响,本文通过熔制、澄清等实验含不同颗粒度石灰石的配合料的熔制过程,谷找出优化的石灰石粒度范围,并人理论上加以探讨。较粗的石灰石颗粒有利于玻璃熔制,但8日筛上颗粒的存在会产生不利的影响;120目筛下的石灰石颗粒的存在不利于玻璃的澄清。 相似文献
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电真空玻璃熔窑内三维数学模型研究祁建伟,胡桅林,过增元(清华大学工程力学系 100084)ThreeDimensionalNumericalSimulationinanElectricVacuumGlassMeltingFurnace¥QiJianw... 相似文献
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Richard Pokorny Zachary J. Hilliard Derek R. Dixon Michael J. Schweiger Donna P. Guillen Albert A. Kruger Pavel Hrma 《Journal of the American Ceramic Society》2015,98(10):3112-3118
The rate of glass production during vitrification in an all‐electrical melter greatly impacts the cost and schedule of nuclear waste treatment and immobilization. The feed is charged to the melter on the top of the molten glass, where it forms a layer of reacting and melting material, called the cold cap. During the final stages of the batch‐to‐glass conversion process, gases evolved from reactions produce primary foam, the growth and collapse of which controls the glass production rate. The mathematical model of the cold cap was revised to include functional representation of primary foam behavior and to account for the dry cold cap surface. The melting rate is computed as a response to the dependence of the primary foam collapse temperature on the heating rate and melter operating conditions, including the effect of bubbling on the cold cap bottom and top surface temperatures. The simulation results are in good agreement with experimental data from laboratory‐scale and pilot‐scale melter studies. The cold cap model will become part of the full three‐dimensional mathematical model of the waste glass melter. 相似文献
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Dr. Gerd Philipp LUO Hong - yan 《玻璃与搪瓷》2007,35(F08):90-93,100
The way of experienced designers to a global supplier of special furnaces for producing very several types of technical glass is shown. Demands on new compositions, higher pull rates, and improved glass quality are met with utilisation of tank operation feedback, melting laboratory investigation, and mathematical modelling. 相似文献
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The effect of the temperature conditions of melting and the design features of the glass melting furnaces on the increase in the specific removal of glass melt in processing quenched insulating parts of high-voltage suspension insulators is demonstrated. Designs are proposed for glass melting furnaces and glass melting temperature regimes whose use will increase the economy of manufacturing insulators. 相似文献
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The corrosive effect of nepheline-based soda on the refractory lining of glass-melting furnaces is tested. The main principle of the process of melting industrial glass from batches containing such soda are discussed. It is established that the use of soda does not provoke complications in glass melting and does not entail the risk of shortening the furnace campaign. 相似文献
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V. V. Lityushkin A. P. Sivko N. Yu. Mikhailenko S. V. Talalaev 《Glass and Ceramics》1998,55(1-2):36-38
The advantages of melting refractory borosilicate glasses in electric furnaces as compared to gas furnaces are described. The processes that occur in liquid glass melted in deep electric furnaces and technologies producing liquid glass of high quality are considered. 相似文献
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