Novel water-cooled mold for casting wrought aluminum and aluminum alloy ingot mold

Abstract

The invention discloses a novel water-cooled mold for casting a wrought aluminum and aluminum alloy ingot mold. The novel water-cooled mold comprises a mold body and an inner mold, the inner mold is welded inside the mold body, and a circulating pipe is arranged on the outer surface of the inner mold in a surrounding mode. According to the novel water-cooled mold, the circulating pipe is adopted,arranged on the surface of the inner mold in a surrounding mode and located inside a circulating pipe cavity, cold water enters the circulating pipe from a water inlet, and slowly rises spirally upwards to a water outlet to be discharged, aluminum liquid contained inside the inner mold is cooled from bottom to top, a final solidification area is cast at the top, thus the difference of cooling conditions between the edge and the center part of an ingot can be eliminated, the phenomenon that an edge area is solidified preferentially is avoided, in this way, in the transformation process of the aluminum liquid from a liquid phase to a solid phase, only overall and even volume shrinkage occurs, the phenomenon that edge volume shrinkage is small and center volume shrinkage is large is avoided,thus center hole shrinkage is avoided, and the loss of head and tail materials is reduced.

Description

technical field [0001] The invention relates to the technical field of water-cooled casting molds, in particular to a new water-cooled mold for ingot mold casting of deformed aluminum and aluminum alloys. Background technique [0002] Ingot mold casting is a relatively simple casting method, which has the advantages of simple operation, low investment and low cost. The water-cooled mold has a hollow mold wall and is cooled by circulating water. The cooling rate can be controlled by adjusting the water pressure or controlling the water temperature. , Compared with the iron mold, the cooling effect is better and it is easy to control the cooling rate. In the central part of the final solidification of the ingot, the concentrated holes that appear due to shrinkage are called central shrinkage holes, and the scattered and small holes are called shrinkage porosity. This is mainly due to It is caused by the difference of solidification conditions in each area during pouring. The c...

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Problems solved by technology

[0003] Due to the existence of the "V"-shaped central shrinkage cavity, it is difficult to carry out subsequent plastic processing such as extrusion, and it must be removed by machining. This not only increases a machining process, but also wastes raw materials and reduces the yield of finished products. In view of the above problems, special A new type of water-cooled mold for deformed aluminum and aluminum alloy ingot mold casting is proposed to solve the above problems

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