A kind of manganese additive for aluminum alloy and preparation method thereof

A manganese additive and aluminum alloy technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of unfavorable quality control of aluminum alloy, complex production process, serious aluminum burning loss, etc., achieve fast melting speed and reduce dendrite segregation , The effect of less burning loss

Active Publication Date: 2018-01-23
CANGZHOU DONSHENG METAL ADDING AGENT MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The melting speed of common manganese additives in the melting and casting process is relatively slow, the actual yield is relatively low, and the production process is relatively complicated
When the melting temperature is higher than 850°C, the melting time needs to be as long as 1 hour, which causes serious burning loss of aluminum, and is particularly easy to form infusible residual impurities, which is extremely unfavorable to the quality control of aluminum alloys

Method used

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  • A kind of manganese additive for aluminum alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (a) Crushing of raw materials: 75kg of manganese powder, 4kg of aluminum powder, 0.03kg of magnesium powder, 0.3kg of iron powder and 0.3kg of silicon powder are crushed under nitrogen protection to a particle size of 40-325 mesh; in terms of mass fraction, 40-50 Mesh accounts for 37.7%, 50~80 mesh accounts for 33%, 80~150 mesh accounts for 25%, 150~325 mesh accounts for 4.3%;

[0042] (b) Compounding: Add 0.1 kg of zinc stearate as a release agent and 0.2 kg of modified starch as a binder to the crushed raw materials in step (a), and add water to stir in a horizontal powder stirring device 20 minutes; the amount of water added is 1% of the total mass of raw materials, that is, 0.8kg;

[0043] (c) Compression: Press the mixture compounded in step (b) into a round cake under 20MPa;

[0044] (d) Drying: Dry the round cake obtained in step (c) in a desiccator under the protection of nitrogen at a temperature of 200°C for 50 minutes to obtain a finished product.

Embodiment 2

[0046] (a) Crushing of raw materials: 95kg of manganese powder, 23kg of aluminum powder, 0.03kg of magnesium powder, 0.3kg of iron powder and 0.3kg of silicon powder are crushed under the protection of nitrogen to a particle size of 40-325 mesh; in terms of mass fraction, 40-50 Mesh accounts for 37.7%, 50~80 mesh accounts for 33%, 80~150 mesh accounts for 25%, 150~325 mesh accounts for 4.3%;

[0047] (b) Compounding: Add 0.2 kg of zinc stearate as a release agent and 0.4 kg of modified starch as a binder to the crushed raw materials in step (a), and stir in a horizontal powder stirring device for 30 minutes; the amount of water added is 3% of the total mass of raw materials, that is, 3.6kg;

[0048] (c) Compression: Press the mixture compounded in step (b) into a round cake at 30MPa;

[0049] (d) Drying: Dry the round cake obtained in step (c) in a desiccator under the protection of nitrogen at a temperature of 280°C for 70 minutes to obtain a finished product.

Embodiment 3

[0051] (a) Crushing of raw materials: 80kg of manganese powder, 10kg of aluminum powder, 0.03kg of magnesium powder, 0.3kg of iron powder and 0.3kg of silicon powder are crushed under the protection of nitrogen to a particle size of 40~325 mesh; in terms of mass fraction, 40~50 Mesh accounts for 37.7%, 50~80 mesh accounts for 33%, 80~150 mesh accounts for 25%, 150~325 mesh accounts for 4.3%;

[0052](b) Compounding: Add 0.14 kg of zinc stearate as a release agent and 0.25 kg of modified starch as a binder to the crushed raw materials in step (a), and stir in a horizontal powder stirring device for 25 minutes; the amount of water added is 2% of the total mass of raw materials, that is, 1.8kg;

[0053] (c) Compression: compress the mixture compounded in step (b) into granules under 22MPa;

[0054] (d) Drying: Dry the granules obtained in step (c) in a drier under the protection of nitrogen at a temperature of 220°C for 55 minutes to obtain a finished product.

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Abstract

The invention relates to a manganese additive for aluminum alloys, which comprises the following components: 75-95 parts by weight of manganese powder, 4-23 parts by weight of aluminum powder, 0.1-0.2 parts by weight of release agent, and 0.2-0.4 part by weight of adhesive , 0.03 parts by weight of magnesium powder, 0.3 parts by weight of iron powder and 0.3 parts by weight of silicon powder. The present invention also relates to a preparation method of the above-mentioned manganese additive for aluminum alloys. The product of the invention has high actual yield, low melting temperature, good solubility and stability.

Description

technical field [0001] The invention relates to the field of metal additives for aluminum alloys, in particular to a manganese additive for aluminum alloys and a preparation method thereof. Background technique [0002] Aluminum and aluminum alloys are widely used in civil, construction and aerospace, and aluminum smelting and processing technology represents the country's industrial development level. [0003] According to different needs, metal components need to be added in the aluminum alloy production process to increase the alloy element composition in aluminum alloy products, and manganese plays a vital role in the aluminum industry and steel industry. [0004] The melting speed of common manganese additives is relatively slow in the melting and casting process, the actual yield is relatively low, and the production process is relatively complicated. When the melting temperature is higher than 850°C, the melting time needs to be as long as 1 hour, which causes seriou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/00B22F1/00C22C22/00B22F3/02
CPCC22C1/026C22C1/06C22C22/00B22F3/02B22F1/10
Inventor 张忠华
Owner CANGZHOU DONSHENG METAL ADDING AGENT MFG
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