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首页> 外文会议>64th World Foundry Congress, Sep 11-14, 2000, Paris - France >Technological developments and worldwide market growth in Lost Foam casting production
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Technological developments and worldwide market growth in Lost Foam casting production

机译：消失模铸造生产的技术发展和全球市场增长

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摘要

Rapid advances in understanding and controlling the Lost Foam Casting process are being made around the world. Casting production is increasing about 20% per year in North America. Process development in the United States has focused on identifying and controlling the process parameters that control casting accuracy and quality. Instruments have been developed, field tested, and commercially used to reduce scrap and improve casting accuracy and quality. Some of the more important instruments and developments have included an air gaging system for accurately measuring foam dimensions, gages for measuring the rate of sand fill and compaction inside pattern cavities, low expansion mullite sands that reduce burn-on defects and improve casting precision, a pattern distortion gage, and models for the metal/pattern exchange that led to an apparatus for measuring coating permeability. This paper summarizes some of the more significant developments in process control and market growth in North America, Europe, and Asia.
机译：世界范围内，在了解和控制“消失模铸造”工艺方面取得了迅速的进步。北美的铸件产量每年以约20％的速度增长。在美国，工艺开发的重点是识别和控制控制铸造精度和质量的工艺参数。已经开发了仪器，进行了现场测试并在商业上用于减少废品并提高铸造精度和质量。一些更重要的仪器和开发成果包括用于精确测量泡沫尺寸的气压计系统，用于测量型腔内砂填充和压实率的量规，用于减少烧伤缺陷并提高铸造精度的低膨胀莫来石砂，图案变形量规，以及用于金属/图案交换的模型，从而建立了用于测量涂层渗透率的设备。本文总结了北美，欧洲和亚洲在过程控制和市场增长方面一些更为重要的发展。

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