Thin-wall shielding cover die-casting die structure and die-casting method

Abstract

The thin-wall shielding cover die-casting die structure is characterized in that the thin-wall shielding cover die-casting die structure comprises a movable die, a middle movable die and a static die which are sequentially arranged, a movable die core is arranged on the movable die, a static die core is arranged on the static die, the middle movable die comprises a middle movable die upper die core and a middle movable die lower die core, and the middle movable die upper die core and the middle movable die lower die core directly face each other up and down; a product cavity is arranged between the middle movable mold upper mold core and the middle movable mold lower mold core, a first pouring gate is arranged between the movable mold core and the middle movable mold lower mold core, a second pouring gate is arranged between the fixed mold core and the middle movable mold lower mold core, and an injection chamber is arranged on the fixed mold core and the middle movable mold lower mold core. The injection chamber is a two-section injection chamber which is sequentially connected, the injection chamber is provided with a two-section injection punch in a matched mode, and the injection device has the beneficial effects that the requirement for die-casting equipment is lowered, the problems that a casting path is long, molten aluminum is poor in liquidity and difficult to form are solved, the consistency of the wall thickness of a product is good, and deformation of the product is reduced.

Description

technical field [0001] The invention relates to the field of die-casting, in particular to a die-casting mold structure and a die-casting method for a thin-walled shielding cover. Background technique [0002] At present, the outer dimensions of the shielding cover of 5G communication base stations are generally more than 800x400mm in length and width, and the wall thickness is generally only 2mm. For the current products, a die-casting machine with a capacity of more than 3,000 tons is still required to avoid strong production. However, if the product size is larger and the wall thickness is halved to only 0.5-1mm, it will be difficult to achieve production at the current technical level. The reason has the following two aspects: [0003] 1. If the wall thickness of the product is only 0.5-1mm, but the length and width are too large, the aluminum water cannot flow too far under such a thin wall thickness. During die-casting production, the aluminum water will solidify befo...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a thin-walled shielding cover die-casting mold structure, which solves the problem of difficult die-casting of large thin-walled parts

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