SGER: New Inorganic Binder to Reduce Casting Emissions

虽然金属铸造法通常适用于生产复杂的网状零件，但由于对铸造作业的环境空气质量规定，挥发性碳氢化合物的排放对该行业施加了越来越严格的限制。这些排放是由模具和芯砂中的有机粘结剂热解引起的。这个小型勘探补助金(SGER)项目建议通过寻找合成碳酸盐水泥替代品来研究制模所需的粘结剂的重新配方。这种材料将使铸造过程中的二氧化硅颗粒结合在一起，并通过使用更无害的材料来减少挥发物。本SGER将展示在金属铸造中通常存在的条件下，合成材料作为粘结剂替代品的能力。这项实验将提供必要的信息，以证明材料作为成型剂的适宜性，包括后浇注材料的特性，以处理废气。对于制造业来说，这是一个解决重大环境问题的新方法。如果能够满足对成型和铸造后废物处理性能的期望，它将具有很高的使用潜力。

9816247Groza Although the metal casting process is often desirable for the production of complex netshape parts, the emission of volatile hydrocarbons has placed increasingly severe restrictions upon the industry as a result of ambient air quality regulations on foundry operations. These emissions arise from the pyrolysis of the organic binders in the mold and core sand. This Small Grants for Exploratory (SGER) project proposes to investigate the reformulation of the binders that are necessary for the mold-making, by looking to a synthetic carbonate cement alternative. This material would allow bonding of the silica particles for the casting process with a reduction in the volatiles by the substitution of more benign materials. This SGER will demonstrate the ability of the synthetic to serve as a substitution for the binder under conditions typically found in metal casting. This experimentation will provide the information necessary to demonstrate the suitability of the material as a molding agent, including the post-casting material characteristics for waste-stream handling. It is a novel approach to a significant environmental problem for the manufacturing community. There is high potential for its use if the expectations of properties for molding and for post-casting waste handling can be met.