Trough technological test, the reason of low hardness was checked from two aspects:the casting process and raw material, so the reason was obtained.
通过工艺试验从铸造工艺和原材料质量两方面进行原因查找，获得了现有生产条件下造成硬度偏低的原因。
The invention is a casting trough and method for pouring molten metal in a casting mold.
本发明涉及一个浇注槽和浇注熔融金属在一个铸造模内的方法。
Owing to the design and trajectory of the casting trough, there is achieved an even and rapid pouring from the casting trough to the casting mold.
由于浇注槽的设计和轨迹，达到由浇注槽至铸造模的一个均匀和迅速的浇注。
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