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Smelting preparation method of aluminum alloy section with good stability

A technology for aluminum alloy profiles and aluminum alloy melts, applied in metal material coating process, coating, solid-state diffusion coating and other directions, can solve the problems of large impurity content and complex process, achieve stable composition and increase grain size The effect of refinement, improved quality and processing performance

Active Publication Date: 2013-05-15
武汉鸿劲金属铝业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aluminum alloy profiles in the prior art often have the disadvantages of large impurity content and complex process during the smelting process.

Method used

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with embodiment, but not limited to following embodiment.

[0029] A method for smelting and preparing an aluminum alloy profile with good stability, comprising the following steps:

[0030] (1) Aluminum alloy melt:

[0031] According to the following parts by weight (kg) of raw materials: 55 parts of 3003 aluminum ingots, 32 parts of discarded aluminum products, 5 parts of boron carbide, and 5 parts of nano-quartz sand powder, add the above raw materials to the melting furnace, and heat up until the charge begins to soften. When it collapses, sprinkle a layer of covering agent on the surface of the melt to cover, and the covering agent is composed of the following parts by weight (kg): 20 parts of CaO, 25 parts of AL 2 o 3 , 35 parts of SiO 2 , 30 parts of charcoal, 23 parts of fly ash; add magnesium ingots, melt, the weight of magnesium ingots is 1-5% of the aluminum raw material weight;

[0032]...

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Abstract

The invention discloses a smelting preparation method of an aluminum alloy section with good stability. The smelting preparation method comprises the following operating steps of: (1) preparing an aluminum alloy melt which is prepared form the following raw materials in parts by weight: 55-65 parts of 3003 aluminum ingots, 32-42 parts of discarded aluminum products, 5-10 parts of boron carbide and 5-10 parts of nanometer silica sand powder; and adding the raw materials into a smelting furnace, heating till the furnace charges begin to soften and collapse, and then spreading a layer of covering agent on the surface of the melt, wherein the covering agent comprises the following components in parts by weight: 10-20 parts of CaO, 10-25 parts of Al2O3, 35-45 parts of SiO2, 12-30 parts of C and 12-23 parts of pulverized fuel ash. According to the smelting preparation method, the performance of the aluminum section can be kept stable as the discarded aluminum material is added in components, and the probability that the quality of the aluminum section is influenced as a material is not detected during smelting of molten aluminum is reduced; and the surface of the aluminum alloy section is subjected to chromation, so that the anticorrosive capability of an oxide film on the surface of the aluminum alloy section and the binding force between the aluminum alloy section and a coating are improved.

Description

technical field [0001] The invention relates to a method for smelting and preparing an aluminum alloy profile with good stability, and belongs to the technical field of aluminum alloy material processing. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry, and has been widely used in aviation, aerospace, automobiles, machinery manufacturing, and ships. With the rapid development of science and technology and industrial economy in recent years, the demand for welded structural parts of aluminum alloys is increasing, and the research on the weldability of aluminum alloys is also in-depth. The wide application of aluminum alloy has promoted the development of aluminum alloy welding technology, and the development of welding technology has expanded the application field of aluminum alloy, so the welding technology of aluminum alloy is becoming one of the hot spots of research. The aluminum-plastic panel is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/06C22F1/04C23C8/20C23F17/00
Inventor 夏坤财
Owner 武汉鸿劲金属铝业有限公司
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