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2-system aluminum alloy and smelting and casting method thereof

An aluminum alloy and melting furnace technology, which is applied to 2-series aluminum alloys with Ni content and their smelting and casting, and high Fe fields, can solve the problems of poor heat resistance of 2-series aluminum alloys, and achieves improved grain boundary strength and good degassing effect. , the effect of easy inhalation

Inactive Publication Date: 2018-03-09
CHINA ZHONGWANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the problem of poor heat resistance of ordinary 2-series aluminum alloys, the present invention provides a 2-series aluminum alloy and its melting and casting method

Method used

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  • 2-system aluminum alloy and smelting and casting method thereof
  • 2-system aluminum alloy and smelting and casting method thereof
  • 2-system aluminum alloy and smelting and casting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 A smelting and casting method for a 2-series aluminum alloy shown, comprising the steps of:

[0031] A. Ingredients: The mass percentage ratio of each element in the aluminum alloy ingot raw material is as follows:

[0032] element

Si

Fe

Ni

Cu

Mg

Zn

Ti

mn

Cr

Al

content

0.15

1.4

1.4

2.6

1.7

0.1

0.06

0.1

0.1

margin

[0033] Prepare aluminum alloy raw materials according to the above ratio;

[0034] B. Smelting: put the aluminum alloy raw material prepared in step A into a melting furnace for melting. During the melting process, high-purity aluminum ingots, pure zinc ingots, aluminum-copper master alloys, and aluminum-iron master alloys are put into the melting furnace in turn until the charge is melted. Finally, pure magnesium ingots are put in, the melting temperature is 740°C, and the aluminum alloy raw materials in the melting furnace are completely melted and t...

Embodiment 2

[0040] The difference between embodiment 2 and embodiment 1 is that in step A, the mass percentage ratio of each element of the aluminum alloy ingot raw material is as follows:

[0041] element

Embodiment 3

[0043] The difference between embodiment 3 and embodiment 1 is that in step A, the mass percentage ratio of each element of the aluminum alloy ingot raw material is as follows:

[0044] element

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Abstract

The invention belongs to the field of metal smelting, and relates to a 2-system aluminum alloy with high Fe and Ni content and a smelting and casting method thereof. The 2-system aluminum alloy comprises, in weight percent, 0.15-0.2% of Si, 1.4-1.6% of Fe, 1.4-1.6% of Ni, 2.6-2.8% of Cu, 1.7-1.9% of Mg, less than or equal to 0.1% of Zn, 0.06-0.09% of Ti, less than or equal to 0.1% of Mn, less thanor equal to 0.1% of Cr and the balance Al. The smelting and casting method includes the steps: performing smelting, refining, degassing, slag removal and casting on raw materials; performing castingby the aid of a semi-continuous casting process; adding 1.0-2.0% of yttrium aluminum intermediate alloys in the refining process; controlling casting temperature to be 690-700 DEG C, controlling casting speed to be 20-30mm / min, and connecting single water flow to be 15-16m<3> / h to obtain 2-system aluminum alloy cast ingots. The 2-system aluminum alloy cast ingots with high content of Fe and Ni produced by the smelting and casting method are less in shortcoming and good in heat resistance and has good economic benefits, finished product rate is increased, and energy consumption and production cost are reduced.

Description

technical field [0001] The invention belongs to the field of metal smelting, and relates to a 2-series aluminum alloy with high Fe and Ni content and a melting and casting method thereof. Background technique [0002] Aluminum alloy is an alloy based on aluminum, the main alloying elements are copper, silicon, magnesium, zinc and manganese. Aluminum alloy is the most widely used non-ferrous metal structural material in industry. At present, aluminum alloy is one of the main types of aluminum alloy profiles. Its production method is to directly cold cast aluminum alloy into ingots, or continuously cast into thick strips, and then hot rolled into predetermined thicknesses, and then use a separate process After the strip is cold-rolled to the final thickness, heat treatment is performed to improve the mechanical properties and corrosion resistance of the aluminum alloy, improve its processing performance, and obtain dimensional stability. [0003] With the rapid development o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/14C22C21/16C22C21/18C22C1/03C22C1/06B22D1/00
CPCC22C21/14B22D1/00C22C1/026C22C1/03C22C1/06C22C21/16C22C21/18
Inventor 刘兆伟王彦俊徐鑫于长富杨路赵鑫
Owner CHINA ZHONGWANG
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