Aluminum alloy refining agent containing La, Er and Zr

A refining agent and aluminum alloy technology, which is applied in the field of aluminum alloy refining agents containing lanthanum, erbium and zirconium, can solve the problems of unsatisfactory removal effect, refinement and deterioration, etc., and achieves obvious hydrogen removal effect, dense fracture structure, and improved mechanical properties. performance effect

Active Publication Date: 2016-02-10
广西平果铝合金精密铸件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the current aluminum alloy refining agent can remove some inclusions and reduce the hydrogen content, but for the smelting process of aluminum alloys with more inclusions, especially the removal effect of inclusions such as small inclusions and non-metal oxides cannot meet the requirements, and also It is impossible to refine and modify the aluminum alloy melt while removing impurities from the aluminum alloy melt, so as to better improve the mechanical and service properties of aluminum alloy castings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An aluminum alloy refining agent containing lanthanum, erbium and zirconium, comprising material A and material B, wherein material A comprises the following raw materials in parts by weight: 75 parts of NaCl, 53 parts of KCl, 16 parts of LiCl, 33 parts of NaF, and 3 parts of AlF 3 11 parts, 11 parts of sodium fluoroaluminate, 15 parts of carbon powder, 26 parts of light calcium carbonate, 8 parts of CaO, 20 parts of light calcium carbonate; B material is made of C 2 Cl 6 、TiO 2 It is composed of metals in a weight ratio of 5:1.8:1.2, and the metals are formulated in the following parts by weight: 65 parts of Mg, 15 parts of La, 15 parts of Er, and 7 parts of Zr; material A and material B are compounded in a weight ratio of 3:1.

[0033] The using method of the above-mentioned aluminum alloy refining agent containing lanthanum, erbium and zirconium comprises the following steps:

[0034] S1. When the temperature of the smelting furnace rises to 650-670°C, spray into m...

Embodiment 2

[0039] An aluminum alloy refining agent containing lanthanum, erbium and zirconium, comprising material A and material B, wherein material A comprises the following raw materials in parts by weight: 80 parts of NaCl, 56 parts of KCl, 18 parts of LiCl, 30 parts of NaF, and 30 parts of AlF 3 10 parts, 10 parts of sodium fluoroaluminate, 12 parts of carbon powder, 20 parts of light calcium carbonate, 5 parts of CaO; B material is made of C 2 Cl 6 、TiO 2 It is composed of metals in a weight ratio of 5:1.5:1.5, and the metals are formulated in the following parts by weight: 60 parts of Mg, 18 parts of La, 18 parts of Er, and 9 parts of Zr; material A and material B are compounded in a weight ratio of 4:1.

[0040] The using method of the above-mentioned aluminum alloy refining agent containing lanthanum, erbium and zirconium comprises the following steps:

[0041] S1. When the temperature of the smelting furnace rises to 670-690°C, spray into material A in an amount of 0.2g / kg me...

Embodiment 3

[0046] An aluminum alloy refining agent containing lanthanum, erbium and zirconium, comprising material A and material B, wherein material A comprises the following raw materials in parts by weight: 70 parts of NaCl, 50 parts of KCl, 12 parts of LiCl, 36 parts of NaF, and 36 parts of AlF 3 12 parts, 12 parts of sodium fluoroaluminate, 18 parts of carbon powder, 28 parts of light calcium carbonate, 10 parts of CaO; B material is made of C2 Cl 6 、TiO 2 It is composed of metals in a weight ratio of 5:2:1, and the metals are formulated in the following parts by weight: 70 parts of Mg, 10 parts of La, 10 parts of Er, and 5 parts of Zr; material A and material B are compounded in a weight ratio of 2:1.

[0047] The using method of the above-mentioned aluminum alloy refining agent containing lanthanum, erbium and zirconium comprises the following steps:

[0048] S1. When the temperature of the smelting furnace rises to 660-680°C, spray into material A in an amount of 2.5g / kg melt, f...

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PUM

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Abstract

The invention discloses an aluminum alloy refining agent containing La, Er and Zr. The aluminum alloy refining agent comprises a material A and a material B, wherein the material A comprises, by weight, 70-80 parts of NaCl, 50-56 parts of KCl, 12-18 parts of LiCl, 30-36 parts of NaF, 10-12 parts of AlF3, 10-12 parts of sodium fluoroaluminate, 12-18 parts of carbon powder, 20-28 parts of light calcium carbonate and 5-10 parts of CaO; the material B is composed of C2Cl6, TiO2 and metal with the weight ratio of 5: 1.5-2: 1-1.5, and the metal is mixed metal containing Mg, La, Er and Zr; the material A and the material B are matched for use and the weight ratio is 2-4: 1. In the process of refining aluminum alloy through the refining agent, dehydrogenation and oxide inclusion removal can be achieved, and the refining agent has the modification and refining function on an aluminum alloy structure.

Description

technical field [0001] The invention relates to the field of aluminum alloy smelting and processing, in particular to an aluminum alloy refining agent containing lanthanum, erbium and zirconium. Background technique [0002] With the development of science and technology, automobile, shipbuilding, aviation, aerospace and other manufacturing industries have higher and higher quality requirements for aluminum alloy castings. In addition to ensuring chemical composition, mechanical properties and dimensional accuracy, castings are not allowed to have pores, shrinkage, etc. For the quality of aluminum alloy, the melting of aluminum alloy is a very important process in the production process of castings, and the purification treatment of aluminum alloy melt is one of the basic guarantee measures for the production of high-quality aluminum castings. The refining effect of aluminum alloy melt has an important impact on the formation of porosity, pores, inclusions, etc., and directl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06C22C21/00
Inventor 梁健
Owner 广西平果铝合金精密铸件有限公司
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