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本文简要叙述了现代化梭式窑的三种燃烧系统及其各自的应用特性,并指出脉冲/比例调节高速燃烧系统可取长补短获得最佳效果,是一种较好的燃烧方式。 相似文献
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模糊PID控制在梭式窑控制系统中的应用研究 总被引:1,自引:0,他引:1
将模糊控制和普通的PID控制相结合,提出了一种基于模糊控制规则的模糊PID控制器的设计方法并将其应用于梭式窑温度控制系统中。试验表明,这种方法比普通的PID控制方法精度高,超调量减少,具有较强的可靠性。 相似文献
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梭式窑烧成全自动控制装置 总被引:5,自引:0,他引:5
近年来适应于多品种小批量生产形式的间歇式梭式窑,由于结构简单,建造费用低廉,窑内温差小及节省能源等优点,正在国内得到大规模普及。现在采用梭式窑可烧成日用瓷、艺术瓷、建陶、卫生洁具及电瓷各种产品。但由于迄今为止的陶瓷烧成过程中,几乎都是借凭肉眼观察及简单的仪表显示或经验进行操作管理,从而导致烧成管理无序或其它问题,影响到产品合格率,产品质量缺陷多,耗能较高及人工费用的增大。 近年来,欧美及日本陶瓷行业已普遍采用全自动控制梭式窑炉,成功地解决了上述问题,使烧成成本大幅度降低,产品利润率提高。为使梭式… 相似文献
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Stable crack-growth and fracture-toughness experiments were conducted using precracked specimens machined from LI-900 reusable surface insulation (RSI) tiles of the space shuttle thermal protection system (TPS) at room temperature. Similar fracture experiments were conducted on fracture specimens with preexisting cracks at the interface of the tile and the strain isolation pad (SIP). Stable crack growth was not observed in the LI-900 tile fracture specimens which had a fracture toughness of 12.0 kPaμm. The intermittent subcritical crack growth at the tile-pad interface of the fracture specimens was attributed to successive local pull-outs due to tensile overload in the LI-900 tile and cannot be characterized by linear elastic fracture mechanics. No subcritical interfacial crack growth was observed in the fracture specimens with densified LI-900 tiles where brittle fracture initiated at an interior point away from the densification. 相似文献