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Method and apparatus for casting zinc-base alloy ingot

A casting method and technology for alloy ingots, which are applied in the field of casting methods and devices for zinc-based alloy ingots, and can solve problems that affect the surface quality of zinc-based alloy ingots, products that do not meet physical specification inspection standards, and dents formed in zinc-based alloy ingots. , to achieve the effect of good surface quality, good cooling effect and avoiding the formation of dents

Active Publication Date: 2009-05-20
ZHUZHOU SMELTER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The third method is a commonly used method, but it has the disadvantage that it is easy to form dents on the upper surface of the zinc-based alloy ingot due to the direct impact of water flow
Whether it is surface shrinkage cavity or dent, it will affect the surface quality of the zinc-based alloy ingot, making the product not meet the physical specification inspection standard

Method used

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  • Method and apparatus for casting zinc-base alloy ingot

Examples

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Effect test

Embodiment 1

[0024] A method for casting zinc-based alloy ingots, which is used for casting zinc-based alloy ingots, which is to first pour molten metal into an ingot mold, and then spray cooling water on the surface of the ingot in the solidification process to cool, and the cooling water The flow rate is 20000 g / min.

[0025] A casting device for zinc-based alloy ingots, such as figure 1 As shown, it includes a linear molding machine 10. The linear molding machine 10 includes a plurality of linearly moving molds and molds 1 placed in each mold. It also includes spraying cooling water on the ingots in the mold 1 after casting. The spraying device, the spraying device is composed of a spraying head 3, a circulating cooling water pipe 4 and an open water tank 11 for receiving cooling water. The spraying head 3 is fixedly arranged above the linear molding machine 10, and the flow rate of the cooling water sprayed by the spraying head 3 is 20000 g / min, the water tank 11 is placed below the l...

Embodiment 2

[0027] A method for casting zinc-based alloy ingots, which is used for casting zinc-based alloy ingots, which is to first pour molten metal into an ingot mold, and then spray cooling water on the surface of the ingot in the solidification process to cool, and the cooling water The flow rate is 1100 g / min.

[0028] A casting device for zinc-based alloy ingots, such as figure 1 As shown, it includes a linear molding machine 10. The linear molding machine 10 includes a plurality of linearly moving molds and molds 1 placed in each mold. It also includes spraying cooling water on the ingots in the mold 1 after casting. Spraying device, the spraying device is composed of nozzle 3, circulating cooling water pipe 4 and open water tank 11 for receiving cooling water. g / min, the water tank 11 is placed below the linear molding machine 10, the vertical distance between the shower nozzle 3 and the mold is 20 centimeters, the lower surface of the mold is placed in the cooling water in the...

Embodiment 3

[0030] A casting method of a zinc-based alloy ingot, which is first to cast molten metal into an ingot mold, and then spray cooling water on the surface of the ingot in the solidification process for cooling, the cooling water is atomized cooling water, atomized cooling The flow rate of water was 200 g / min.

[0031] A casting device for zinc-based alloy ingots, such as figure 1 As shown, it includes a linear molding machine 10. The linear molding machine 10 includes a plurality of linearly moving molds and molds 1 placed in each mold. It also includes spraying cooling water on the ingots in the mold 1 after casting. The spraying device is composed of a spraying head 3, a circulating cooling water pipe 4 and an open water tank 11 for receiving cooling water. The spraying head 3 is fixed above the linear molding machine 10. The spraying device is an atomizing spraying device. The spraying head 3 For the atomizing nozzle, the flow rate of the atomizing cooling water is 200 g / min...

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Abstract

The invention relates to a method and a device for casting a zinc based alloy ingot. The method comprises the following steps: firstly molten metal is cast in an ingot mould, during the solidification, the surface of the ingot is cooled down through spraying cooling water, and the flow rate of the cooling water is between 200 and 20,000g / m. The device comprises a linear moulding machine comprising a plurality of casting moulds making the rectilinear motion and moulds arranged in the casting moulds; the device is characterized in that the device also comprises a spraying device spraying the cooling water on the ingots in the cast moulds one by one, the spraying device consists of a spray head, a circulating cooling water pipe and an open water tank receiving the cooling water, and the spraying device can be an atomization spraying device. In the method, through spraying the cooling water, the upper surface of the zinc based alloy ingot is quickly shrunk, and the central part of fused mass is quickly solidified, thereby avoiding the shrinkage hole phenomenon; moreover, by limiting the flow rate of the cooling water, the formation of dent on the ingot surface due to the direct impact of the cooling water is avoided.

Description

technical field [0001] The invention relates to a production method and device of a zinc-based alloy, in particular to a casting method and device of a zinc-based alloy ingot. Background technique [0002] At present, the production method of casting zinc ingots and zinc alloy ingots is generally to first melt the metal into a liquid, pour the molten metal liquid into a mold, and then use artificial cooling or natural cooling to solidify it into a solid ingot of the desired shape. Since the temperature difference reaches 400 degrees during the solidification process of molten metal, in this cooling process, according to the principle of thermal expansion and contraction, the volume of the ingot after casting is bound to be larger than that after cooling. In other words, the cooling rate at the edge of the ingot is faster than that at the center of the ingot, and the volume compensation during the cold shrinkage process is concentrated on the upper surface of the ingot center...

Claims

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Application Information

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IPC IPC(8): B22D27/04B22D21/00
Inventor 伏东才罗贱生唐凌刘立群
Owner ZHUZHOU SMELTER GRP
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