方内桶是新型磨油漆机上的重要部件。其铸件尺寸如图1，材质为KmTBCr15Mo2—DT（GB8263—87）。铸件壁厚均匀一致，不得有拔模斜度，桶四壁的平行度、垂直度公差等级满足八级精度要求，内外表面不得有飞边毛刺、气孔、砂眼、缩孔、裂纹等铸造缺陷。图1方内桶铸件图该件原采用普 Square barrel is an important part of the new mill paint machine. The casting size shown in Figure 1, made of KmTBCr15Mo2-DT (GB8263-87). Casting wall thickness uniform, no draft, the barrel parallel to the wall, the vertical tolerance class to meet the eight precision requirements, the inner and outer surface shall not have burrs, pores, blisters, shrinkage, cracks and other casting defects. Figure 1 square barrel castings The original piece of the Cape