Crystallizer for casting and cavity water distribution device thereof

Abstract

The invention discloses a cavity water distribution device of a crystallizer for casting. The device comprises at least two water distribution rings, a water containing groove is formed between every two adjacent water distribution rings, each water distribution ring is provided with water holes, and the water holes in the two water distribution rings on the inner side are arranged in a staggered mode. According to the cavity water distribution device, in the primary cooling process of cast ingots, external water flow sequentially passes through the water holes in each water distribution ring from outside to inside, the water holes in the two water distribution rings on the inner side are arranged in the staggered mode, and therefore the water flow is prevented from directly impacting the surfaces of the cast ingots at high pressure through the water holes from the exterior, the speed of the water flow entering the cavity water distribution device can be lowered, the water flow can be uniform, intensive cooling is prevented from being generated on the surfaces of the cast ingots, the uniformity of primary cooling of the cast ingots is improved, and the cracking probability of the cast ingots is lowered. The invention further discloses the crystallizer comprising the cavity water distribution device for casting.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to an inner cavity water diversion device of a casting crystallizer. It also relates to a casting crystallizer comprising the inner cavity water diversion device. Background technique [0002] Casting molds are used in aluminum alloy casting, and the water diversion device in the inner chamber of the casting mold is an important part, which is used for cooling treatment in the process of alloy casting. [0003] Most of the water diversion devices in the inner cavity of the existing casting crystallizers use a single water diversion ring, and a circle of water holes is arranged on the water diversion ring. The casting surface is cooled. The cooling of the casting mold is divided into primary cooling (surface cooling of the casting mold) and secondary cooling. The existing inner cavity water diversion device of the casting crystallizer can satisfy the stability of the secondary coo...

AI Technical Summary

Problems solved by technology

However, in a cooling process, especially for the cooling of cemented carbide, in the casting process of cemented carbide, because of the water separation structure of a single water divider and a single circle of water holes, the high pressure will be generated after the water flows through the single circle of water holes. Spraying on the alloy that is close to the working surface of the casting crystallizer will cause strong cooling to the alloy injection point, making the filling metal flow uneven at this point, the feeding is not in place, and a convergent intersection is formed. For hard aluminum alloys This type of intersection point on the casting surface will have a large stress concentration, resulting in cracking on the surface of the ingot

[0004] In summary, how to solve the cooling inhomogeneity in the primary cooling process of the ingot has become an urgent problem to be solved by those skilled in the art

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