product news/產品新聞


in Winona, Minn. He expects the prototype to be installed and functioning in the early summer. Using microwaves to reclaim sand in a metalcasting


facility has been tried before without much success. But Mathis believes a commercially viable technology is within reach, provided those involved overcome the biggest hurdle toward innovation. “It’s about understanding concepts and energy interac-


tions,” he said. “Microwave as an industrial technique really hasn’t taken hold outside of drying and food processing. People have been trying starting from the late ’80s. Te problem is, you have chemists, ceramists and materials scientists, who all understand the material and what they’re trying to process very well, but they don’t understand how microwaves interact with materials. And then you have electrical engineers and physicists, who obviously understand microwaves and electromagnetics, but don’t know much about the materials being processed within their units. Our concepts are a bridge between the microwave world and the materials world.” ■


还很少，但是Mathis认为只要克服创新过程中的最 大障碍，商业化的微波技术是可以很快实现的。 “这是一个关于概念和能量的相互作用的认识问 题，”他说，“微波作为一项工业技术，从未真正 在干燥和食品加工领域之外被掌握。从80年代后期 开始，人们开始了尝试。但问题是，虽然化学家、 陶艺家和材料科学家们都很了解材料，并且努力将 材料进行很好的处理，但他们不了解微波与材料的 相互作用。而电气工程师和物理学家，显然他们都 非常了解微波和电磁学，但他们并不非常了解所加 工材料的特性。我们的理念是架起微波世界和材料 世界之间的桥梁。 ■


The prototype began pro- cessing sands common in the metalcasting industry in November 2013.


Inoculant Selection Is Crucial for Cast Irons 孕育剂是铸铁的关键因素


Te need to meet increasing requirements from end users means that, often, more attention must be paid to the metal treatment processes. Preconditioning and nodularization can be used optimise both nucleation levels and the use of magnesium alloys. Inoculation is the final alloying stage before casting and therefore will play a critical role in determining the final casting properties.


满足最终用户不断提高的要求，意味着需要对金属处 理工艺给予更多的关注。通过预处理和球化，可以优化 成核水平以及镁合金的使用。孕育是在浇注之前最后一 个合金化处理过程，因此，孕育剂是决定最终铸件性能 的关键。


铸铁的类型、化学成分、冶金因素、机械/物理性能 September 2014 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 73


2013年11月，样机开 始应用于铸造行业的砂 处理。


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