Method for adding alloy elements in up-drawing copper-magnesium alloy casting

Abstract

The invention relates to a method for adding alloy elements in up-drawing copper-magnesium alloy casting. The method is characterized by including: calculating adding quantity, to be more specific, calculating the magnesium ingot weight which needs to be added when every electrolysis copper plate is added according to the weight of each batch of electrolysis copper plates and the empirical value of magnesium utilization rate; crushing a magnesium ingot, to be more specific, using a special hydraulic shear to cut the whole magnesium ingot into small pieces so as to precisely weigh magnesium of appropriate weight in the next step; weighing the magnesium ingot, to be specific, weighing the whole magnesium ingot and the magnesium ingot pieces on an electronic scale with the minimum measuring unit being 1g so as to obtain the magnesium ingot weight which needs to be matched with each electrolysis copper plate; packaging the magnesium ingot; charging. By the method, magnesium element utilization rate is increased, the risk that impurities are mixed into melted copper is reduced, and product quality is increased.

Description

technical field [0001] The invention relates to a method for adding alloy elements applied to the production of up-drawn copper-magnesium alloy cast slabs. Background technique [0002] Since magnesium is a strong oxidizing element with low melting point and low density, copper-magnesium alloys can easily react with oxygen to form hard and brittle phases during the smelting process, reducing the mechanical properties of alloy rods. At the same time, magnesium also has a corrosive effect on the lining material. Therefore, in the copper-magnesium alloy casting process, it is necessary to try to reduce the burning loss of magnesium and reduce the content of hard and brittle phases in the slab. The traditional magnesium addition method, such as adding copper-magnesium master alloy, the magnesium content in this alloy cannot be roughly uniform, and the cost is too high. For another example, if pure magnesium is directly added into the furnace, due to the low density of magnes...

AI Technical Summary

Problems solved by technology

The traditional magnesium addition method, such as adding copper-magnesium master alloy, the magnesium content in this alloy cannot be roughly uniform, and the cost is too high

Another example, if pure magnesium is directly added into the furnace, due to the low density of magnesium, it is easy to float up, which will increase its burning loss and cause waste.

At the same time, the oxides of magnesium in the furnace increase, that is, the amount of slag increases, the frequency of slag removal by workers increases, and the labor intensity increases. In addition, excessive slag and the unavoidable disturbance to copper water during the slag removal process increase the occurrence of products. The risk of slag inclusion defects indirectly affects product quality

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