铝活塞铸造质量标准要求很高。大多数生产企业为加工合乎质量要求的产品,不计成本投入大量人力物力与财力以求解决。但由于品种型号繁多,活塞结构复杂(裙部上下壁厚相差悬殊或裙部装有防涨钢片或头部镶有奥氏体耐磨圈等)、材质各异(共晶或过共晶铝硅合金)以及熔炼工艺复杂不易掌握等情况,致使产品内在质量不理想,某个型号产品铸造缺陷总是消除不掉,成批报废是常有的事情。 为加工合乎质量要求的产品,有的生产企业不计成本,采取各种方法以达到质量最低标准,但其铸造废 Aluminum piston casting quality standards demanding. Most manufacturing enterprises to meet the quality requirements of processing products, regardless of cost invested a lot of manpower and material resources to solve the problem. However, due to the variety of models, the piston structure is complicated (the difference between the upper and lower wall thickness of the skirt or the skirt is equipped with anti-riser steel or the head inlaid austenitic wear rings, etc.), different materials (eutectic or hypereutectic Aluminum-silicon alloy) as well as the complexity of the melting process is not easy to grasp and so on, resulting in product quality is not ideal, a model of casting defects are always eliminated, batch scrap is a common occurrence. In order to meet the quality requirements of the products, some manufacturers regardless of cost, to take various methods to achieve the lowest quality standards, but its foundry waste