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我厂生产的托轮体铸钢件(图1),重10.62kg,材质为1045(SAE),其内腔是两头小、中间大、补缩和排气都非常困难。曾采用图2和图3所示的工艺方案
I plant production of wheel-cast steel castings (Figure 1), weighing 10.62kg, made of 1045 (SAE), the cavity is two small, large in the middle, filling and exhaust are very difficult. Have used the process shown in Figure 2 and Figure 3