Mold applicable to T-shaped sacrificial anode casting and sacrificial anode casting method thereof

Abstract

The invention relates to a mold applicable to T-shaped sacrificial anode casting. The mold is characterized by comprising an upper cover plate, a casting body and a lower bottom plate, wherein the upper cover is detachably installed on the upper end of the casting body; the lower end of the casting body is detachably provided with the lower bottom plate; a reverse T-shaped cavity is arranged on the casing body; a casting opening communicating with the reverse T-shaped cavity is formed in the upper cover plate; a hanging ring is arranged on the upper cover plate arranged at the two sides of the casting opening; an anti-leakage positioning lug boss matched with the reverse T-shaped cavity is arranged on the lower bottom plate; a flow blocking groove is formed in the lower bottom plate arranged on the periphery of the anti-leakage positioning lug boss; a mold plug is arranged in a gap position between the casting body and the lower bottom plate; the arc-shaped groove position of the mold plug is used for placing an iron core of the sacrificial anode. The mold has the advantages that the inner stress due to different cooling speed can be inhibited, so that the generation of cracks, in the edge positions of wing fins and the like, of the T-shaped sacrificial anode can be inhibited.

Description

technical field [0001] The invention relates to the technical field of sacrificial anode casting, in particular to a new type of mold suitable for T-shaped sacrificial anode casting and capable of suppressing the formation of cracks at edge parts such as wings. Background technique [0002] Existing general block sacrificial anode and T-shaped sacrificial anode casting mold technology, as described in the utility model patent "for special-shaped sacrificial anode casting mold CN204867305U", its product structure is mainly composed of an upper mold as a flat cover plate, with wings The lower mold of the cavity and the trapezoidal cavity, and the plug used to closely cooperate with the anode iron core to prevent the leakage of molten aluminum during the casting process, its structure has the following characteristics and disadvantages: the lower mold is the main body used for anode casting , a conventional mold structure with a wide top and a narrow bottom is adopted. The wing...

AI Technical Summary

Problems solved by technology

[0002] Existing general block sacrificial anode and T-shaped sacrificial anode casting mold technology, as described in the utility model patent "for special-shaped sacrificial anode casting mold CN204867305U", its product structure is mainly composed of an upper mold as a flat cover plate, with wings The lower mold of the cavity and the trapezoidal cavity, and the plug used to closely cooperate with the anode iron core to prevent the leakage of molten aluminum during the casting process, its structure has the following characteristics and disadvantages: the lower mold is the main body used for anode casting , a conventional mold structure with a wide top and a narrow bottom is adopted. The wing-shaped cavity is located on the upper part of the inverted trapezoidal cavity. During the anode casting process, the inverted trapezoidal cavity is filled first, and the wing-shaped cavity is filled last. The structure will cause heat storage in the lower trapezoidal cavity during the casting process, and the specific surface area of ​​the trapezoidal cavity is small, and the heat dissipation rate is slow; while the wing-shaped cavity is cast at the end, the heat storage is small, and its specific surface area is large, and the heat dissipation rate is fast

Therefore, the metal cooling rate difference between the trapezoidal cavity and the wing-shaped cavity is large, resulting in local stress, and the cast anode is prone to cracks at the edge of the wing.

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