Waste molding sands from the foundry industry have been successfully used as a component in manufactured soils, but concern over metal contamination must be addressed before many states will consider this beneficial use. Since there is little data available on this topic, the purpose of this study was to characterize total and leachable metals from waste molding sands. A total elemental analysi...

Taking the special-shaped plastic part as the research object, numeric simulation and experimental study of the injection molding process are completed based on the synthetical application of numeric simulation technology, orthogonal experiment method, Moldflow, injection machine and CMM. Optimal feeding system and molding process parameters are obtained and qualified products are produced. The...