Construction of Manufacturing System with Injection Molding of Composite Material Using Industrial Waste

铝窗厂排出的氧化铝污泥和甘蔗压榨后的蔗渣被用作工业废渣。通过将这些材料与塑料树脂和玻璃纤维混合，将BMC(Bulk Molding Component)复合材料应用于注射成型和注塑压缩成型。以氧化铝污泥为研究对象，研究了γ污泥在90 0℃下焙烧，污泥含量在10~40%范围内的变化对其力学性能的影响。结果表明，40%的污泥含量主要是由于玻璃纤维的松散和均匀分散，减少了收缩，提高了机械强度。对于蔗渣纤维，粉碎后的蔗渣形状变为针状，纤维内部含有许多空洞。这些特性影响了产品的机械强度和质量。甘蔗渣中的空腔用来调节BMC中的粘度，而这些孔有助于在被甘蔗渣纤维刺穿时保持玻璃纤维的稳定。因此，包括蔗渣纤维在内的产品的机械强度得到了极大的提高。根据这些结果，通过开发加工技术和热处理，可以获得铝土渣和袋子的有用性能，这些工业废物可以转化为有用的资源和注塑成型的工业材料，可以大量生产。本研究实现了工业废弃物处理工业原料制造系统的构建。

Alumite sludge which is discharged at aluminum sash factories and bagasse which is left over from squeezed sugar cane were used as industrial waste. By mixing these materials with plastic resin and glass fibers, the BMC (Bulk molding compound) composite materials were applied for injection molding and injection compression molding. In terms of the alumite sludge, the mechanical properties were investigated by using γ sludges fired at 900℃ and varying the sludge content of the BMC within the range of 10 to 40%. As a result, it became obvious that the sludge content of 40% attributed for reduction of shrinkage and improvement of mechanical strength because of the loosened bundles and uniform scattering of glass fibers. In the case of the bagasse fibers, the shape of the bagasse changed to needle type after crushing and the fibers contain many cavities inside. These characteristics affected the mechanical strength and quality of product. The cavities in the bagasse work to adjust the viscosity in the BMC and the holes are useful for keeping the glass fibers stationary when being pierced by the bagasse fibers. Therefore, a drastic improvement of the mechanical strength of the product including the bagasse fibers was achieved.From these results, by development of processing technology and heat treatment which can obtain useful properties in terms of the alumite sludge and bagassse, this industrial waste can be converted to useful resources and industrial material for injection molding which can manufacture in large quantities. This research achieved the construction of a manufacturing system for treatment of industrial waste to be used as industrial material.