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。
The direction and magnitude of the kinetic energy of the molten metal are affected by the design of the spout of the casting trough and by a suitably chosen trajectory of the pouring motion.
熔融金属的动能的方向和数量受到浇注槽的出口的设计以及浇注运动的适当选择的轨迹的影响。
The mass flow rate of the molten metal is controlled by means of a choke element fitted in the casting trough.
熔融金属的质量流率借助配合在浇注槽内的一个扼流元件控制。
Changing the sea route or trough; Demarcating, changing, or canceling a restricted navigation area, mud casting area, aquatics breeding area, speed testing area, or water entertainment area;
改变航道、航槽；划定、改动或撤销禁航区、抛泥区、水产养殖区、测速区、水上娱乐区；
Changing the sea route or trough; Demarcating, changing, or canceling a restricted navigation area, mud casting area, aquatics breeding area, speed testing area, or water entertainment area;
改变航道、航槽；划定、改动或撤销禁航区、抛泥区、水产养殖区、测速区、水上娱乐区；
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