Dual-mode water-cooled hub mold

Abstract

The invention discloses a dual-mode water-cooled hub mold which comprises a mold cover plate, a bottom mold, a press mold and a casting mold. The bottom of the bottom mold is provided with a receivingcavity, a hydraulic ejector rod is fixed on the bottom wall of the receiving cavity through screws, the casing mold is welded at the top end of the hydraulic ejector rod, the mold cover plate is arranged above the bottom mold, the press mold is welded on the lower side of the mold cover plate, a hub mold cavity is defined by the press mold and the casting mold, a plurality of cooling pipes are embedded in the side wall of the bottom mold, and a first drain pipe and a first water supply pipe are welded at two ends of each cooling pipe. By means of a large diameter pipe and a small diameter pipe, different heat exchange can be conducted specific to different wall thickness of a rim, the different wall thickness parts of the rim can be cooled approximately, the overall casting shape of the rim and the rim quality are improved, and the welding of the large diameter pipe and the small diameter pipe can avoid overheating or overcooling. Heat exchange water enters the bottom mold after cooled, so that the heat exchange performance of the heat exchange water can be maintained.

Description

technical field [0001] The invention relates to a dual-mode wheel hub mold, in particular to a dual-mode water-cooled wheel hub mold, which belongs to the technical field of wheel hub molds. Background technique [0002] Casting forming wheels is the main production method used by most aluminum alloy wheel manufacturers. The commonly used casting methods mainly include gravity casting, low pressure casting, squeeze casting and oxygen filled casting. Filling the mold by its own gravity, this method is relatively simple, the requirements for equipment conditions are not high, and the cost is low, but the production stability is poor, casting defects such as shrinkage porosity and shrinkage cavity are prone to occur during the solidification of molten aluminum, and the wall thickness of the rim is different , large shrinkage cavities are likely to occur at the joint between the rim and the spokes, the mechanical properties of the product are poor, and the existing dual-mode hub...

AI Technical Summary

Problems solved by technology

[0002] Casting forming wheels is the main production method used by most aluminum alloy wheel manufacturers. The commonly used casting methods mainly include gravity casting, low pressure casting, squeeze casting and oxygen filled casting. Filling the mold by its own gravity, this method is relatively simple, the requirements for equipment conditions are not high, and the cost is low, but the production stability is poor, casting defects such as shrinkage porosity and shrinkage cavity are prone to occur during the solidification of molten aluminum, and the wall thickness of the rim is different , large shrinkage cavities are likely to occur at the joint between the rim and the spokes, the mechanical properties of the product are poor, and the existing dual-mode hub mold cooling mechanism is relatively complicated, and the heat exchange capacity of cold water decreases with the increase of the mold entry time, which is difficult to achieve Effective cooling of each part of the rim

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