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首页> 外文会议>2nd International Conference on Processing Materials for Properties, Nov 5-8, 2000, San Francisco, California >Material Properties Improvement of Cast A206 Using Vacuum Assisted Counter Gravity Casting Process
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Material Properties Improvement of Cast A206 Using Vacuum Assisted Counter Gravity Casting Process

机译：真空辅助反重力铸造工艺改善铸件A206的材料性能

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摘要

Recently, there is a growing trend in the aluminum foundry industry to develop improved melting and casting processes to produce lightweight, high-strength, and thin-wall castings for the aerospace and transportation industry. One casting method that has demonstrated industrial potential for producing clean, thin-wall castings is vacuum-assisted, counter gravity casting. This process has the benefit of expeditiously and quiescently filling the casting cavity with a dramatic reduction of furnace related and reoxidation inclusions. Additionally, lower casting temperatures can be utilized because the application of vacuum during filling overcomes the resistive internal cavity pressure resulting in a finer, as-cast microstructure. The paper explores and discusses the processing and design conditions in improving the mechanical properties of A206 casting alloy using the vacuum assisted, counter gravity casting process.
机译：近年来，铝铸造业的发展趋势是开发改进的熔化和铸造工艺，以生产用于航空航天和运输业的轻质，高强度和薄壁铸件。真空辅助反重力铸造是一种已证明具有生产清洁薄壁铸件工业潜力的铸造方法。此过程的好处是可以迅速而静态地填充铸型腔，并显着减少与炉有关的和再氧化的夹杂物。另外，可以使用较低的铸造温度，因为在填充期间施加真空克服了内腔的电阻性压力，从而导致了更精细的铸态微观结构。本文探讨并讨论了采用真空辅助反重力铸造工艺改善A206铸造合金力学性能的工艺和设计条件。

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