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Production method of high-purity stabilized aluminum alloy ingot

A technology of aluminum alloy ingots and production methods, which is applied in the field of aluminum alloy ingots, can solve the problems of coarse crystallization, unstable performance, and high impurity content of products, and achieve the goals of reducing melt absorption, improving internal quality, and improving alloy composition uniformity Effect

Active Publication Date: 2012-07-25
YE CHIU METAL RECYCLINGCHINALTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the preparation method adopted by the high-purity stable aluminum alloy ingots currently on the market, one is based on pure aluminum ingots, and according to the composition ratio requirements, adding The required alloy elements are smelted to produce aluminum alloy ingots of the required grades, but the cost of this preparation method is very high; another preparation method is to use waste aluminum materials to prepare, to recycle scrap aluminum parts or in the process of producing aluminum products The leftovers and waste aluminum wires are used as the main raw materials, and the secondary aluminum ingots that meet the standard requirements are produced through smelting and preparation. This production method has the following problems:
[0009] To sum up, when using waste aluminum to prepare high-purity and stable aluminum alloys, the technical problems faced are: the pretreatment quality of waste aluminum, smelting The control of energy consumption and burning loss in the process, the guarantee of the uniformity of the product composition, the purification quality of the aluminum melt, and the control of the crystallization structure of the product, etc., due to the above technical problems, there are high costs in production, coarse crystallization of the product, and serious composition segregation , high impurity content, unstable performance, serious environmental pollution and other problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Cu: 3.15%; Si: 8.0%; Mg: 0.05%; Zn: 1%; Fe: 0.3%; Mn: 0.2%; %; balance is AL.

[0059] The production method step of above-mentioned high-purity stable type alloy ingot is:

[0060] (1) Sorting and sorting of raw materials; use scrap aluminum scrap sieving machine for sorting; use scrap aluminum scrap sieving machine to sort out scrap aluminum materials of different sizes;

[0061] (2) Raw material preparation: classify and store the sorted raw materials to provide raw materials for smelting production;

[0062] (3) Ingredients: According to the proportion requirements of each metal element of the product and the prepared raw materials, the raw materials are selected from 380 slices and some raw materials with high copper and low zinc;

[0063] (4) Preheating and feeding: 70% of the raw materials with a good ratio are preheated through the "scrap aluminum smelting preheating kiln" and then sent to the smelting furnace; the preheating temperature of raw materials can r...

Embodiment 2

[0088] Cu: 3.75%; Si: 9.2%; Mg: 0.08%; Zn: 2.68%; Fe: 0.85%; Mn: 0.48%; Ni: 0.48%; Sn: 0.33%; %; balance is AL.

[0089] The production method step of above-mentioned high-purity stable type alloy ingot is:

[0090] (1) Sorting and sorting of raw materials; use scrap aluminum scrap sieving machine for sorting; use scrap aluminum scrap sieving machine to sort out scrap aluminum materials of different sizes;

[0091] (2) Raw material preparation: classify and store the sorted raw materials to provide raw materials for smelting production;

[0092] (3) Ingredients: According to the requirements of the proportion of each metal element of the product and the prepared raw materials, the raw materials such as off-stage materials and raw aluminum slices are used;

[0093] (4) Preheating and feeding: 70% of the raw materials with a good ratio are preheated through the "scrap aluminum smelting preheating kiln" and then sent to the smelting furnace; the preheating temperature of raw ma...

Embodiment 3

[0118] Cu: 3.5%; Si: 8.8%; Mg: 0.1%; Zn: 1.5%; Fe: 0.68%; Mn: 0.36%; Ni: 0.32%; %; balance is AL. The production method step of above-mentioned high-purity stable type alloy ingot is:

[0119] (1) Sorting and sorting of raw materials; use scrap aluminum scrap sieving machine for sorting; use scrap aluminum scrap sieving machine to sort out scrap aluminum materials of different sizes;

[0120] (2) Raw material preparation: classify and store the sorted raw materials to provide raw materials for smelting production;

[0121] (3) Ingredients: Proportioning is carried out according to the proportion requirements of each metal element of the product and the prepared raw materials; the raw materials are 380 large materials and under-table ingots;

[0122] (4) Preheating and feeding: 70% of the raw materials with a good ratio are preheated through the "scrap aluminum smelting preheating kiln" and then sent to the smelting furnace; the preheating temperature of raw materials can rea...

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Abstract

The invention discloses high-purity stabilized aluminum alloy ingot which comprises the following components in weight percent: 3.1-3.8% of Cu, 7.9-9.3% of Si, 0-0.1% of Mg, 0-2.3% of Zn, 0-0.9% of Fe, 0-0.5% of Mn, 0-0.5% of Ni, 0-0.35% of Sn, 0-0.1% of Ti, 0-0.25% of other trace elements and the balance of AL. The invention further discloses a production method of the high-purity stabilized aluminum alloy ingot. The high-purity stabilized aluminum alloy ingot of the invention has low gas and slag content, high cleanness of molten aluminum, uniform components of the product and thin crystal structure; and the production method has low production cost and high efficiency, and effectively solves the pollution problem of the secondary aluminum industry.

Description

technical field [0001] The invention relates to an aluminum alloy ingot and a production method thereof, in particular to a high-purity stable aluminum alloy ingot and a production method thereof. Background technique [0002] At present, the aluminum-silicon alloys on the market have high impurity content, serious composition segregation, poor mechanical and processing properties, poor raw material sorting ability, high preparation cost and low efficiency. [0003] In addition, the preparation method adopted by the high-purity stable aluminum alloy ingots currently on the market is to use pure aluminum ingots as the base, add the required alloying elements according to the composition ratio requirements, and smelt the aluminum alloy ingots of the required grades. However, the cost of this preparation method is very high; another preparation method is to use waste aluminum materials to prepare, use recycled waste aluminum parts or scraps and waste aluminum wires in the proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22B21/06B22D7/00
Inventor 黄崇胜
Owner YE CHIU METAL RECYCLINGCHINALTD
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