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首页> 外文期刊>Journal of Materials Engineering and Performance >Optimized Gating System for Steel Castings
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Optimized Gating System for Steel Castings

机译：钢铸件优化门控系统

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Computer modeling using a commercially available software package was used to explore the optimization of filling systems based on the relatively new concepts of avoiding entrainment of air bubbles and oxides by avoiding surface turbulence. The test casting was based on a pattern for a traditional top poured test bar, whose cross section was a tri-lobed clover-like shape. The study illustrates clearly that the detailed design of the filling system has a major influence on the conditions for defect generation during filling. Traditional steel casting systems using the widely popular assembly of preformed refractory tubes were found to behave poorly. Systems were demonstrated which were capable of delivering highly controlled filling behavior. The latest systems to be developed employed (1) a naturally pressurized filling system and (2) the use of filters placed flush on the top of the runner to act as bubble diverters, together with (3) terminal spin traps. These novel filling systems demonstrated excellent performance in simulation, in agreement with practical experience of the capability (of the trident gate in particular) to produce, for the first time in the history of casting, defect-free castings on a routine basis.
机译：使用商业上可用的软件包的计算机建模用于通过避免表面湍流来探索避免气泡和氧化物夹带的相对较新的概念来探讨填充系统的优化。试验铸件基于传统顶部浇注的试验杆的图案，其横截面是三叶状三叶草状形状。该研究清楚地说明了填充系统的详细设计对填充过程中的缺陷产生的条件具有重要影响。发现传统的钢铸造系统，使用预制耐火管的广泛流行装配，表现得很差。证明了能够提供高度控制的填充行为的系统。采用最新的系统（1）一种自然加压的填充系统和（2）使用过滤器在流道顶部齐平地放置，以充当泡沫转移器，以及（3）终端旋转陷阱。这些新颖的填充系统在模拟中表现出优异的模拟性能，同时与实际的铸造，无缺陷铸件的历史上生产的实际经验（特别是三叉戟门）的实际经验。

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