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Green Sand Management - Role Application of Carbonaceous Additives and Concept of total Carbon in a Green Sand System

机译：绿沙管理-含碳添加剂的作用和应用以及绿沙系统中总碳的概念

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摘要

The advent of High Volume, High Density & High Pressure Molding Lines has changed the logistics of Molding Techniques and selection of additives significantly. Having 4 main ingredients, Sand, Bentonite, Water & Additives, the properties of the Sand Mold resulting from this simple mixture to deliver target casting quality is complexly variable. Modern machine molding parameters demand increasing efficiency from the additives, many of which are natural resource based; having limitations for developing their inherent properties under the speed, force and load conditions of modern foundry installations. This challenge to optimize a given natural resource escalates sand preparation and management from being an 'art' to being a 'science'. Consequently, the importance of maintaining range-bound values of the prepared Sand in addition to the promotion of a 'reducing' atmosphere in the metal-mold interface can minimize the occurrence of sand related defects.
机译：大容量，高密度和高压成型线的出现极大地改变了成型技术的物流和添加剂的选择。具有四种主要成分（砂，膨润土，水和添加剂），由这种简单混合物提供的目标铸件质量所产生的砂模特性复杂地变化。现代机械成型参数要求添加剂的效率不断提高，其中许多是基于自然资源的。在现代铸造厂的速度，力和负载条件下，其固有性能的发展受到限制。优化给定自然资源的挑战将制砂和管理从“艺术”升级为“科学”。因此，除了促进金属-模具界面中“减少”的气氛外，保持制备的砂的范围值的重要性还可以最大程度地减少与砂有关的缺陷的发生。

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