Compensation structure of die pressed casting aluminum

Abstract

The invention relates to a casting die, in particular to a compensation structure of die pressed casting aluminum. The compensation structure of the die pressed casting aluminum comprises a movable die and a fixed die, a product cavity is formed between the movable die and the fixed die, the end, away from the fixed die, of the movable die is provided with a movable die frame, the end, away from the movable die, of the movable die frame is provided with a positioning cavity, an extrusion oil cylinder is arranged in the positioning cavity, the extrusion oil cylinder is provided with an extrusion connector, an extrusion core is connected to the extrusion connector, the outer side of the extrusion connector is sleeved with a connector supporting column, the outer side of the extrusion core issleeved with an extrusion positioning sleeve, the movable die is provided with a containing cavity matched with the connector supporting column and the extrusion positioning sleeve, the free end, close to the extrusion core, in the product cavity is provide with a middle cinder ladle used for compensating for aluminum liquid pressure, and the end, close to the middle cinder ladle, of the extrusion core is provided with a pressure compensation device. The compensation structure has the beneficial effects of being capable of effectively improving production quality, achieving local pressure compensation and avoiding insufficient aluminum liquid pressure.

Description

technical field [0001] The invention relates to a casting mold, in particular to a compensation structure for die-cast aluminum. Background technique [0002] Existing casting molds usually adopt the combination of a movable mold and a fixed mold, and a product cavity is set between the movable mold and the fixed mold, and the molten aluminum enters the product cavity, and is shaped into a casting product through the product cavity. During the casting process, the liquid aluminum has local shrinkage holes, especially in the local pressure parts of the die casting. The insufficient pressure of the aluminum liquid will cause defects in the local parts of the casting and reduce the production quality of the product. Contents of the invention [0003] The present invention mainly aims at the above problems, and provides a compensation structure for die-casting aluminum that can effectively improve production quality, realize local pressure compensation, and avoid insufficient ...

AI Technical Summary

Problems solved by technology

During the casting process, air shrinkage holes appear locally in the molten aluminum, especially in the local pressure parts of the die-casting parts. The insufficient pressure of the molten aluminum will cause defects in the local parts of the castings and reduce the production quality of the products.

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