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Production method of zinc-aluminum-manganese-magnesium alloy for hot dipping

A technology of zinc-aluminum-manganese-magnesium alloy and production method, which is applied in the field of nonferrous metallurgy to achieve the effects of reducing the amount of production, improving adhesion, and thinning bright adhesion

Inactive Publication Date: 2014-03-05
HULUDAO ZINC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to meet the market demand for zinc-based alloys for hot-dip galvanizing and to address the deficiencies in current zinc-based alloys for hot-dip galvanizing, the present invention proposes a production method for zinc-aluminum-manganese-magnesium alloys for hot-dip galvanizing. The preparation process of manganese-magnesium alloy and the control of the ratio of zinc, aluminum, manganese and magnesium ingredients solve technical problems in the production of zinc, aluminum, manganese and magnesium alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0010] The preparation process of zinc-aluminum-manganese-magnesium alloy: first, the main alloying element zinc is added into the melting zinc furnace to melt, then aluminum is added and the temperature continues to rise to 500-600°C, and then the elements manganese and magnesium are simultaneously pressed into the molten zinc with a pressure cover made of SiC. Stir in the zinc liquid, continue to heat up to 600-700°C, add refining agent and keep the temperature constant for 10-20 minutes, cool down to 450-550°C, remove slag and cast into zinc-aluminum-manganese-magnesium alloy ingots.

[0011] The proportion of zinc-aluminum-manganese-magnesium alloy ingredients: by mass percentage: Al: 0.1-2.0, Mn: 0.1-2.0, Mg: 0.1-0.5, Zn as the balance.

[0012] The ratio of zinc, aluminum, manganese and magnesium alloy ingredients can be adjusted within a limited range.

Embodiment

[0014] 1. Al: 0.1%; Mn: 0.1%; Mg: 0.1%; Zn is the balance.

[0015] 2. Al: 0.5%; Mn: 0.5%; Mg: 0.2%; Zn is the balance.

[0016] 3. Al: 1.0%; Mn: 1.0%; Mg: 0.3%; Zn is the balance.

[0017] 4. Al: 1.5%; Mn: 1.5%; Mg: 0.4%; Zn is the balance.

[0018] 5. Al: 2.0%; Mn: 2.0%; Mg: 0.5%; Zn is the balance.

[0019] 6. Al: 2.0%; Mn: 2.0%; Mg: 0.1%; Zn is the balance.

[0020] 7. Al: 1.5%; Mn: 1.5%; Mg: 0.2%; Zn is the balance.

[0021] 8. Al: 1.0%; Mn: 1.0%; Mg: 0.3%; Zn is the balance.

[0022] 9. Al: 0.5%; Mn: 0.5%; Mg: 0.4%; Zn is the balance.

[0023] 10. Al: 0.1%; Mn: 0.1%; Mg: 0.5%; Zn is the balance.

[0024] The more preferred combination of ingredients in the above embodiments is Al: 0.5%-1.5%; Mn: 0.5-1.0%; Mg: 0.1-0.3%; Zn is the balance.

[0025] In the examples, except zinc, aluminum, manganese and magnesium elements, the rest are impurity elements, which should meet the requirements of hot-dip galvanized product standards: Fe<0.005%, Cd<0.003%, Sn<0.002%, Pb<0.0...

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Abstract

The invention provides a production method of a zinc-aluminum-manganese-magnesium alloy for hot dipping. The zinc-aluminum-manganese-magnesium alloy for hot dipping is produced through a preparation process of a zinc-aluminum-manganese-magnesium alloy and a dosing proportion control process of the zinc-aluminum-manganese-magnesium alloy. Compared with the traditional zinc alloy for hot dipping, the zinc-aluminum-manganese-magnesium alloy for hot dipping, provided by the invention, has the advantages that the corrosion resistance and adhesion of a coating are improved, and the manufacturing cost of the alloy is reduced. Meanwhile, due to the addition of the aluminum element, the zinc bath surface oxidation can be reduced, and the coating is thinned and brightened and has good adhesion; due to the addition of the magnesium element, the melting point of the alloy is reduced; due to the addition of the manganese element, the generation of zinc pot bottom slag is reduced, and the zinc-aluminum-manganese-magnesium alloy better conforms to the requirements for energy conservation and environmental protection and can be widely applied to the fields such as modern buildings, decoration, traffic, home appliance and the like. The production method is suitable to be used as a method for producing a zinc-aluminum-manganese-magnesium alloy for hot dipping.

Description

technical field [0001] The invention belongs to the field of nonferrous metal metallurgy, and in particular relates to a production method of a zinc-aluminum-manganese-magnesium alloy for hot-dip plating. Background technique [0002] As an effective method for corrosion protection of steel materials, hot-dip galvanizing has been paid more and more attention and has been widely used. The demand for hot-dip galvanized materials in modern construction, decoration, transportation, household appliances and other fields is increasing. The quality requirements of hot-dip galvanized products are also getting higher and higher. The quality of hot-dip galvanized products is mainly reflected in the good corrosion resistance, adhesion and uniform and smooth appearance of the coating. Among traditional hot-dip galvanized varieties, Zn-Al Hot-dip galvanizing has poor corrosion resistance and machining performance. Zn-Al-Sb hot-dip galvanizing and Al-Zn-Si-Re hot-dip galvanizing developed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/04C22C1/02C23C2/06
Inventor 贾乙东赵殿顺
Owner HULUDAO ZINC IND CO LTD
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