阅读说明：本技术 外覆溶剂的铝用微量元素调整材料及其制备方法 (Solvent-coated trace element adjusting material for aluminum and preparation method thereof ) 是由 张忠华 张忠凯 王磊 李洲 王春阳 张春宇 徐建明 苑武林 陈睿 杨雪 于 2021-01-18 设计创作，主要内容包括：本发明涉及铝合金的技术领域,特别是涉及外覆溶剂的铝用微量元素调整材料及其制备方法,提高收率,减小环境污染；调整材料包括依次相连的底层、中层和顶层,底层和顶层包括铁粉、六氯乙烷、氟化铝以及锰粉,中层包括钛粉、镁粉、银粉和锡粉。(The invention relates to the technical field of aluminum alloy, in particular to a trace element adjusting material for aluminum coated with a solvent and a preparation method thereof, which can improve the yield and reduce the environmental pollution; the adjusting material comprises a bottom layer, a middle layer and a top layer which are sequentially connected, wherein the bottom layer and the top layer comprise iron powder, hexachloroethane, aluminum fluoride and manganese powder, and the middle layer comprises titanium powder, magnesium powder, silver powder and tin powder.)

1. The trace element adjusting material for aluminum externally coated with the solvent is characterized by comprising a bottom layer, a middle layer and a top layer which are sequentially connected, wherein the bottom layer and the top layer comprise iron powder, hexachloroethane, aluminum fluoride and manganese powder, and the middle layer comprises titanium powder, magnesium powder, silver powder and tin powder.

2. A solvent-overcoated trace element adjusting material for aluminum according to claim 1, wherein a charging ratio of the adjusting material is 1 to 3% by weight of aluminum.

3. A solvent-overcoated trace element conditioning material for aluminum according to claim 1, wherein the ratio of each component is, in weight percent: 20-30% of iron powder, 4-7% of hexachloroethane, 4-7% of aluminum fluoride, 20-30% of manganese powder, 10-15% of titanium powder, 6-9% of magnesium powder, 10-20% of silver powder and 10-20% of tin powder.

4. The solvent-overcoated trace element conditioner for aluminum and the method for producing the same according to claim 1, wherein the particle sizes of the iron powder, manganese powder, titanium powder, magnesium powder, silver powder and tin powder are-90 mesh to 200 mesh.

5. The solvent-overcoated aluminum microelement conditioning material of claim 1, wherein the top layer and the bottom layer are of the same mass.

6. The method for preparing a solvent-overcoated trace element modification material for aluminum according to any one of claims 1 to 5, comprising the steps of:

(1) uniformly mixing all raw materials at the bottom layer, and flatly paving and placing the mixture into a mold;

(2) then, uniformly mixing the raw materials in the middle layer, and placing the mixture into the same mold;

(3) then, uniformly mixing all the raw materials at the top layer, and placing the mixture into the same mold;

(4) and pressing to obtain the adjusting material.

Technical Field

The invention relates to the technical field of aluminum alloy, in particular to a trace element adjusting material coated with a solvent for aluminum and a preparation method thereof.

Background

As is well known, aluminum and aluminum alloys have wide application in civil use, building, aerospace and other fields, with the continuous development of aluminum processing and aluminum alloy industry, the development of aluminum alloys is a key development technology, and aiming at different requirements, other metals are required to be added in the production process of aluminum alloys to adjust the content of trace elements in the aluminum alloys.

Existing method for adjusting aluminum alloy

When the content of the trace elements is high, the problem of overlarge melting point difference exists when the intermediate alloy is prepared, the preparation is troublesome, and when the trace element content of the aluminum alloy is adjusted by using the metal additive, the temperature required by the molten metal additive is higher and higher than the melting temperature of the aluminum, the aluminum metal is easily burnt and damaged, so that the yield of the aluminum metal is reduced, meanwhile, a large amount of release agent is required to be added in the production process of the metal additive, and more black smoke generated by organic matter combustion can be generated in the fusion casting use process, so that the environment is polluted.

To solve this problem, it is necessary to develop a conditioning material that can replace the intermediate metal and metal additives.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a solvent-coated trace element adjusting material for aluminum, which can improve yield and reduce environmental pollution.

Another object of the present invention is to provide a method for preparing a solvent-overcoated trace element adjusting material for aluminum.

The trace element adjusting material for aluminum coated with the solvent comprises a bottom layer, a middle layer and a top layer which are sequentially connected, wherein the bottom layer and the top layer comprise iron powder, hexachloroethane, aluminum fluoride and manganese powder, and the middle layer comprises titanium powder, magnesium powder, silver powder and tin powder.

The trace element adjusting material for aluminum coated with a solvent is added in a proportion of 1-3% by weight of aluminum.

The trace element adjusting material for aluminum coated with the solvent comprises the following components in percentage by weight: 20-30% of iron powder, 4-7% of hexachloroethane, 4-7% of aluminum fluoride, 20-30% of manganese powder, 10-15% of titanium powder, 6-9% of magnesium powder, 10-20% of silver powder and 10-20% of tin powder.

The aluminum microelement adjusting material coated with the solvent has the granularity of-90 meshes to 200 meshes.

The trace element adjusting material for aluminum coated with the solvent has the same quality of the top layer and the bottom layer.

The preparation method of the solvent-coated trace element adjusting material for aluminum comprises the following steps:

(1) uniformly mixing all raw materials at the bottom layer, and flatly paving and placing the mixture into a mold;

(2) then, uniformly mixing the raw materials in the middle layer, and placing the mixture into the same mold;

(3) then, uniformly mixing all the raw materials at the top layer, and placing the mixture into the same mold;

(4) and pressing to obtain the adjusting material.

Compared with the prior art, the invention has the beneficial effects that: the density of the prepared adjusting material is far greater than that of the aluminum liquid, the adjusting material is quickly reduced after being put into the aluminum liquid, most of the adjusting material is melted at a lower position, burning loss is reduced, and meanwhile, in the preparation process, a release agent and a binder are not added, organic matters are not added into filtrate, and smoke is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the drawings, the reference numbers: 1. bottom layer, 2, middle layer; 3. a top layer.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1:

the material proportion of the adjusting material is as follows: 20% of iron powder, 7% of hexachloroethane, 4% of aluminum fluoride, 24% of manganese powder, 15% of titanium powder, 6% of magnesium powder, 10% of silver powder and 14% of tin powder, wherein the particle sizes of the iron powder, the manganese powder, the titanium powder, the magnesium powder, the silver powder and the tin powder are-90 meshes to 200 meshes;

the preparation method comprises the following steps:

the method comprises the following steps:

(1) uniformly mixing all raw materials at the bottom layer, and flatly paving and placing the mixture into a mold;

(2) then, uniformly mixing the raw materials in the middle layer, and placing the mixture into the same mold;

(3) then, uniformly mixing all the raw materials at the top layer, and placing the mixture into the same mold;

(4) and pressing to obtain the adjusting material, wherein the weight of a single piece of the adjusting material is 400 g.

Case (2):

in a certain aluminum alloy production line, the adding temperature is 720-740 ℃, the yield is 98.16-98.68 percent, and the smoke is slight.

Example 2:

the material proportion of the adjusting material is as follows: 30% of iron powder, 4% of hexachloroethane, 7% of aluminum fluoride, 20% of manganese powder, 10% of titanium powder, 9% of magnesium powder, 10% of silver powder and 10% of tin powder, wherein the particle sizes of the iron powder, the manganese powder, the titanium powder, the magnesium powder, the silver powder and the tin powder are-90 meshes to 200 meshes;

the preparation method comprises the following steps:

the method comprises the following steps:

(1) uniformly mixing all raw materials at the bottom layer, and flatly paving and placing the mixture into a mold;

(2) then, uniformly mixing the raw materials in the middle layer, and placing the mixture into the same mold;

(3) then, uniformly mixing all the raw materials at the top layer, and placing the mixture into the same mold;

(4) and pressing to obtain the adjusting material, wherein the weight of a single piece of the adjusting material is 500 g.

Case (2):

in a certain aluminum alloy production line, the adding temperature is 720-740 ℃, the yield is 98.53-99.12 percent, and the smoke is slight.

Example 3:

the material proportion of the adjusting material is as follows: 25% of iron powder, 6% of hexachloroethane, 6% of aluminum fluoride, 22% of manganese powder, 12% of titanium powder, 7% of magnesium powder, 11% of silver powder and 11% of tin powder, wherein the particle sizes of the iron powder, the manganese powder, the titanium powder, the magnesium powder, the silver powder and the tin powder are-90 meshes to 200 meshes;

the preparation method comprises the following steps:

the method comprises the following steps:

(1) uniformly mixing all raw materials at the bottom layer, and flatly paving and placing the mixture into a mold;

(2) then, uniformly mixing the raw materials in the middle layer, and placing the mixture into the same mold;

(3) then, uniformly mixing all the raw materials at the top layer, and placing the mixture into the same mold;

(4) pressing to obtain the adjusting material, wherein the weight of a single piece of the adjusting material is 450 g.

Case (2):

in a certain aluminum alloy production line, the adding temperature is 720-740 ℃, the yield is 97.46-98.46 percent, and the smoke is slight.

Example 4:

the material proportion of the adjusting material is as follows: 26% of iron powder, 5% of hexachloroethane, 7% of aluminum fluoride, 21% of manganese powder, 11% of titanium powder, 8% of magnesium powder, 10% of silver powder and 12% of tin powder, wherein the particle sizes of the iron powder, the manganese powder, the titanium powder, the magnesium powder, the silver powder and the tin powder are-90 meshes to 200 meshes;

the preparation method comprises the following steps:

the method comprises the following steps:

(1) uniformly mixing all raw materials at the bottom layer, and flatly paving and placing the mixture into a mold;

(2) then, uniformly mixing the raw materials in the middle layer, and placing the mixture into the same mold;

(3) then, uniformly mixing all the raw materials at the top layer, and placing the mixture into the same mold;

(4) and pressing to obtain the adjusting material, wherein the weight of a single piece of the adjusting material is 400 g.

Case (2):

in a certain aluminum alloy production line, the adding temperature is 720-740 ℃, the yield is 97.12-98.31 percent, and the smoke is slight.

The adjusted material densities obtained in examples 1-4 were tested and the following data were obtained:

	example 1	Example 2	Example 3	Example 4
					Density (g/cm)3)	6.54	6.61	6.48	6.55

The conditioned materials prepared in examples 1-4 all had higher yields while reducing smoke generation.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.