为了廉价地制造精度高而又无缺陷的铸件,首先必须考虑配制合适的型砂。为使型砂性能很好地满足工艺要求,必须在重视其性能的基础上,考虑如何研制从落砂开始的一系列砂处理设备在砂处理设备中,特别应注意为适应不同情况而大幅度调整处理 In order to produce high-precision, defect-free castings inexpensively, it is first necessary to consider the preparation of suitable molding sand. In order to meet the requirements of the sand process performance, we must consider its performance, based on how to develop a series of sand from the start of sand processing equipment in the sand treatment equipment, with particular attention to adapt to different situations and greatly adjusted deal with