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Magnesium alloy smelting protection solvent and preparation method thereof

A magnesium alloy and solvent technology, applied in the field of protective solvent for magnesium alloy smelting and its preparation, can solve the problems of low flux slag-making ability, poor separation of magnesium melt, pollute the environment, etc., and achieve the effect of excellent protective performance

Active Publication Date: 2016-02-24
贵州航天风华精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flux commonly used now is mainly composed of anhydrous carnallite (MgCl2-KCl) and some fluorides and chlorides. The flux must be remelted and dehydrated before use. Choking smell, polluting the environment, severe corrosion of the factory building, and many occupational diseases in the respiratory tract of the operator. In addition, the flux has low slagging ability and poor separation from the magnesium melt, so it is easy to be wrapped in the magnesium melt to form flux inclusions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The invention provides a protective solvent for magnesium alloy smelting, and its chemical composition is: barium carbonate 15kg, calcium sulfate 15kg, nano zirconia 17kg, magnesium chloride 15kg, hydroxyapatite 20kg, magnesium silicate 20kg, and lithium chloride 5kg.

[0017] Meanwhile, the preparation method of the protective solvent for magnesium alloy melting is as follows:

[0018] 1) Dry the above raw materials separately at 100~120℃ for dehydration;

[0019] 2) Mix the above-mentioned dried raw materials and put them in a ball mill to grind them into powder, and the average particle size of the powder is less than 10μm;

[0020] 3) After sieving the above-mentioned powder, put it into a closed container for later use.

[0021] In the process of magnesium alloy smelting, the solvent melts into a liquid state at a temperature greater than 500°C, and the flux melts into a liquid state. It spreads on the surface of the alloy or magnesium liquid to isolate the air and prevent t...

Embodiment 2

[0023] The invention provides a protective solvent for magnesium alloy melting, and its chemical composition is: 8kg of barium carbonate, 12kg of calcium sulfate, 12kg of nano-zirconia, 12kg of magnesium chloride, 12kg of hydroxyapatite, 12kg of magnesium silicate, and 1kg of lithium chloride.

[0024] Meanwhile, the preparation method of the protective solvent for magnesium alloy melting is as follows:

[0025] 1) Dry and dehydrate the above raw materials separately at 100°C for 50 minutes;

[0026] 2) Mix the above-mentioned dried raw materials and put them in a ball mill to grind them into powder, and the average particle size of the powder is less than 10μm;

[0027] 3) After sieving the above-mentioned powder, put it into a closed container for later use.

[0028] In the process of magnesium alloy smelting, the solvent melts into a liquid state at a temperature greater than 500°C, and the flux melts into a liquid state. It spreads on the surface of the alloy or magnesium liquid to ...

Embodiment 3

[0030] The invention provides a protective solvent for magnesium alloy smelting, and its chemical composition is: barium carbonate 10kg, calcium sulfate 13kg, nano zirconia 13kg, magnesium chloride 13kg, hydroxyapatite 13kg, magnesium silicate 15kg, and lithium chloride 3kg.

[0031] Meanwhile, the preparation method of the protective solvent for magnesium alloy melting is as follows:

[0032] 1) Dry and dehydrate the above raw materials separately at 110°C for 40 minutes;

[0033] 2) Mix the above-mentioned dried raw materials and put them in a ball mill to grind them into powder, and the average particle size of the powder is less than 10μm;

[0034] 3) After sieving the above-mentioned powder, put it into a closed container for later use.

[0035] In the process of magnesium alloy smelting, the solvent melts into a liquid state at a temperature greater than 500°C, and the flux melts into a liquid state. It spreads on the surface of the alloy or magnesium liquid to isolate the air and...

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PUM

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Abstract

The invention provides magnesium alloy smelting protection solvent and a preparation method thereof. The magnesium alloy smelting protection solvent comprises the following chemical components in parts by weight: 8-15 parts of barium carbonate, 12-15 parts of calcium sulfate, 12-17 parts of nanometer zirconium oxide, 12-15 parts of magnesium chloride, 12-20 parts of hydroxyapatite, 12-20 parts of magnesium silicate, and 1-5 parts of lithium chloride. The preparation method is to perform the mixing after the drying. The smelting protection solvent, provided by the invention, is molten to a liquid state in an environment of higher than 500 DEG C in the smelting process, and is spread on the surface of an alloy or molten magnesium to achieve an air isolating effect and to stop the magnesium oxidation so as to obtain excellent protection performance.

Description

Technical field [0001] The invention belongs to the field of magnesium alloy production, and in particular relates to a protective solvent for magnesium alloy melting and a preparation method thereof. Background technique [0002] As the lightest engineering metal structure material, magnesium alloy has the advantages of light specific gravity, high specific strength and specific rigidity, good damping and machinability, good thermal conductivity, strong electromagnetic shielding ability, good vibration damping and easy recycling. The aviation, aerospace, and modern automobile industries have requirements for weight reduction and energy saving, and can replace engineering plastics to meet the light, thin, miniaturized, high integration and environmental protection requirements of 3C (computers, communications, consumer electronics) products, It has become the material of choice for the modern automobile and 3C industry, and is known as the "green engineering material of the 21st ...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C1/02C22C23/00
CPCC22C1/02C22C1/06C22C23/00
Inventor 李翔光于丹俞开升敖四海谢懿陈春喜陈寅王昌明
Owner 贵州航天风华精密设备有限公司
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