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Melt treatment device and method for preparing oversized aluminum alloy ingot

An aluminum alloy ingot, super-large-scale technology, applied in the field of metal material processing, can solve the problems of increasing the size of the electromagnetic processor, discounting the effect and effect of electromagnetic processing, and the melt being unable to be stirred by the electromagnetic field. The effect of uniformity, promoting nucleation, and reducing the depth of liquid pockets

Pending Publication Date: 2020-08-07
有研金属复材技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the further increase of ingot specifications, the size of the electromagnetic processor placed inside the melt also increases accordingly, and the melt within the core range cannot be stirred by the electromagnetic field, and the effect and effect of electromagnetic treatment are also greatly reduced

Method used

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  • Melt treatment device and method for preparing oversized aluminum alloy ingot
  • Melt treatment device and method for preparing oversized aluminum alloy ingot
  • Melt treatment device and method for preparing oversized aluminum alloy ingot

Examples

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Embodiment 1

[0051] An aluminum processing enterprise prepares Φ1400mm specification 2219 aluminum alloy ingots. It has strict requirements on the uniformity of the internal structure of the ingots. The segregation rate is controlled within 5%.

[0052] Adopt the present invention to produce the 2219 aluminum alloy round ingot that diameter is 1400mm, the schematic diagram of device structure is as follows Figure 1-3 shown. The annular electromagnetic melt processor 6 is arranged on the casting platform. The outer diameter of the annular electromagnetic melt processor 6 is 750 mm, the inner diameter is 360 mm, and the height is 300 mm. The annular electromagnetic melt processor 6, the hot top 2 and the crystallizer 3 are concentric and ring The bottom end of the electromagnetic melt processor 6 is flush with the bottom end of the crystallizer 3 . The crystallizer water tank 5 is arranged on the outer periphery of the crystallizer 3, and the electromagnetic stirring method adopts two set...

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Abstract

The invention discloses a melt treatment device and method for preparing an oversized aluminum alloy ingot. The device mainly comprises an annular electromagnetic melt treater, a hot top, a crystallizer, a crystallizer water tank, a graphite ring, a dummy ingot and a lifting mechanism, wherein the annular electromagnetic melt treater is arranged in the crystallizer and concentric with the crystallizer, a circuit port and a connecting mechanism are arranged at the top of the annular electromagnetic melt treater, and the annular electromagnetic melt treater is connected with the lifting structure, capable of moving up and down in a height direction of the crystallizer through the lifting mechanism and is positioned at a corresponding position in the crystallizer; a lower end of the hot top is hermetically connected with the crystallizer through the graphite ring; the crystallizer water tank is arranged on the periphery of the crystallizer. When the device is used for melt treatment, theannular electromagnetic melt treater is applied to the alloy melt in a semi-continuous casting process, so that a temperature field and a component field of the super-large-volume alloy melt are effectively and uniformly controlled, melt flow is effectively controlled, and the high-quality oversized aluminum alloy cast ingot with uniform and fine structure and uniform components is prepared.

Description

technical field [0001] The invention belongs to the field of metal material processing, and in particular relates to a melt processing device and method for preparing super-large aluminum alloy ingots. Background technique [0002] Super-sized aluminum alloy ingots play a vital role in major fields such as aerospace, rail transit, and national defense, and their application prospects are very broad. Ordinary semi-continuous casting of large-scale aluminum alloy ingots has problems such as coarse and uneven structure, composition segregation, looseness, cracking, etc. The yield is low and the quality is difficult to guarantee, which cannot meet the follow-up processing procedures. Aluminum alloy ingot performance requirements. The inhomogeneous temperature field, composition field and stress field in the solidification process of aluminum alloy melt are one of the main factors leading to such problems. As the size of the ingot increases, the temperature difference between t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/115B22D11/055B22D11/112B22D11/22
CPCB22D11/003B22D11/055B22D11/112B22D11/115B22D11/22
Inventor 张志峰白月龙赵浩东
Owner 有研金属复材技术有限公司
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