SGER: New Inorganic Binder to Reduce Casting Emissions

虽然金属铸造工艺通常用于生产复杂的网状零件，但由于铸造作业的环境空气质量法规，挥发性碳氢化合物的排放对该行业的限制越来越严格。这些排放物来自于模具和芯砂中有机粘合剂的热解。这个小型探索性资助（SGER）项目建议通过寻找合成碳酸盐水泥替代品来研究模具制造所需粘合剂的重新配方。这种材料将允许在铸造过程中结合二氧化硅颗粒，通过替代更良性的材料来减少挥发物。该SGER将展示该合成材料在金属铸造中作为粘结剂替代品的能力。该试验将提供必要的信息，以证明该材料作为模塑剂的适用性，包括铸造后材料处理废物流的特性。对于制造业来说，这是一种解决重大环境问题的新方法。如果能满足对成型和铸造后废物处理性能的期望，则其使用潜力很大。

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.