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通过对超大型铝铸件反射体的分析，在铸造工艺及材质上采取了一系列措施，成功地铸造出轮廓尺寸为Φ３７２２ｍｍ×１２７０ｍｍ、浇注重量达２４００ｋｇ的铝合金铸件，经外观检查，表面没有缩孔、冷隔、浇不足等铸造缺陷，表面粗糙度Ｒ＠≤２５μｍ；经探伤检查，针孔度达到图纸技术要求；经用户划线检查，工作曲面壁厚为７ｍｍ～８５ｍｍ（图纸公称尺寸８ｍｍ）；力学性能超过标准规定。
Through the analysis of the reflector of the super-large aluminum castings, a series of measures have been taken on the casting process and the material to successfully cast the aluminum alloy castings with the contour size of Φ3722mm × 1270mm and the pouring weight of 2400kg. After the appearance inspection, the surface has no shrinkage Holes, cold insulation, casting defects such as insufficient casting, surface roughness R @ ≤ 25μm; by inspection, pinhole degree to meet the technical requirements of the drawings; the user crossed the check, work surface wall thickness of 7mm ~ 8 5mm Size 8mm); mechanical properties exceed the standard requirements.