Aluminium bus vertical casting technology method

Abstract

The present invention relates to a technical method for vertical casting of aluminum bus. By adopting the technique of vertical casting the invention is characterzied in that the technological parameters in production are as follows: 1) aluminum content in aluminum liquid used in casting is more than 99.65 percent, content of impurity is less than 0.35 percent, and ratio of Fe to Si is limited between 1.2 to 1.5; 2) casting termperature is limited between 720 to 730 DEG C; 3) casting speed is controlled between 80 to 100mm per minute; 4) the distant between level of the aluminum liquid and the upper inner rim of crystallizer is 2.0cm. The present method can remarkably improve the passing rate of product. In practical production, the present method can control heat crack, curve and twist of the aluminum bus and can reduce the production cost of the aluminum bus.

Description

technical field [0001] The invention relates to a vertical casting process for aluminum busbars. Background technique [0002] A large number of high-quality aluminum conductive busbars are required in electrolytic production, and their quality directly affects the operation safety of the electrolytic cell infrastructure installation and production power consumption indicators. In the past, rolling and calendering busbars were used in the aluminum busbars of the electrolytic cell. It has a series of disadvantages: complex manufacturing process, high energy consumption, serious anisotropy, uneven current, high connection voltage and high production cost. In recent years, with the development of large-scale aluminum electrolytic cells, the cathode busbar, anode busbar, and column busbar all adopt large-section cast aluminum busbars. This product has high mechanical strength, easy processing, low current density, and easy current sharing. And many advantages such as energy sav...

AI Technical Summary

Problems solved by technology

In the past, rolling and calendering busbars were used in electrolytic cell aluminum busbars, which had a series of disadvantages: complex manufacturing process, high energy consumpti

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