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Mg-contained multi-combination modified low-zinc hot-dipping aluminium-plated alloy plating material and preparation method thereof

An aluminum alloy and hot-dip plating technology, applied in hot-dip plating process, metal material coating process, coating and other directions, can solve the problems of increased additional processing capacity, evaporation, increased manufacturing cost, etc., to save materials and improve circulation Efficiency, effect of thinning coating thickness

Inactive Publication Date: 2012-08-29
GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the change of the coating material type, the hot-dip coating process conditions (temperature, corrosiveness of the bath itself, etc.) must also have corresponding changes, and these changes will cause many problems in actual operation, including the addition of steel products before and after. Increased processing capacity, increased energy consumption, changes in the material of the plating solution container, problems of missing plating, evaporation of the plating solution, slag formation, stricter requirements for speed and temperature control, etc. These problems will increase manufacturing costs, and hot-dip galvanized product producers do not want to willing to accept

Method used

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  • Mg-contained multi-combination modified low-zinc hot-dipping aluminium-plated alloy plating material and preparation method thereof
  • Mg-contained multi-combination modified low-zinc hot-dipping aluminium-plated alloy plating material and preparation method thereof
  • Mg-contained multi-combination modified low-zinc hot-dipping aluminium-plated alloy plating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Example 1: Mg-Cu-Cr-Bi-C-Pr-Si combination

[0076] (1) Select a group of elements according to the formula combination table. Examples according to weight percentage are: polarization modifier Mg: 15, alloy strengthener Cu: 6.0, solvent passivator Cr: 0.8, precipitation hardener Bi: 0.1, crystal Grain refiner C : 0.001, rare earth additive Pr: 0.01, matrix interface reaction buffer element Si: 2.0, second solvent element Zn: 28, the balance is Al; the total amount of the alloy prepared is 1000kg, then the weight of each substance required is calculated It is: Mg: 150 kg, Cu: 60 kg, Cr: 8 kg, Bi: 1 kg, C: 0.01 kg, Pr: 0.1 kg, Si: 20 kg, Zn: 280 kg, Al: 480.89 kg.

[0077] (2) Add aluminum ingots or molten aluminum to the smelting furnace, heat it to melt completely, and keep it at 700-800℃;

[0078] (3) Add matrix interface reaction buffer, Mg, solvent passivator, grain refiner, alloy strengthening agent, rare earth additives and precipitation hardener according to the form...

Embodiment 2

[0082] Example 2: Mg-Cu-Co-Mn-In-B-Sc-Fe combination

[0083] (1) Select a group of elements according to the formula combination table, according to the weight percentage, for example: Polarization modifier Mg: 10 -4 , Alloy strengthening agent Cu: 10 -4 , Solvent passivator Co: 0.003, Mn: 0.2, precipitation hardener In: 0.03, grain refiner B: 0.0002, rare earth additive Sc: 0.11, matrix interface reaction buffer element Si: 1.2, second solvent element Zn: 28. The balance is Al; the total amount of the alloy prepared is 1000kg, and the weight of each substance required is calculated as: Mg: 0.001kg, Cu: 0.001kg, Co: 0.03kg, Mn: 2kg, In: 0.3 kg, B: 0.002 kg, Sc: 1.1 kg, Si: 12 kg, Zn: 280 kg, Al: 704.566 kg.

[0084] The following steps are the same as in Example 1.

Embodiment 3

[0085] Example 3: Mg-Cu-Co-Cr-Mn-Bi-In-Tl-B-C-Zr-Pr-Sc-Fe-Si combination

[0086] (1) Select a group of elements according to the formula combination table. Examples according to weight percentages are: polarization modifier Mg: 0.7, alloy strengthening agent Cu: 1.5, solvent passivator Co: 0.005, Cr: 0.05, Mn: 0.07, Precipitation hardener Bi: 0.07, In: 0.01, Tl: 0.015, grain refiner B: 0.001, C: 0.001, Zr: 0.28, rare earth additives Pr: 0.01, Sc: 0.06, matrix interface reaction buffer element Fe: 0.5 , Si:1.0, the second solvent element Zn:28, the balance is Al; the total amount of the alloy prepared is 1000kg, and the weight of each substance required is calculated as Mg: 7kg, Cu: 15kg, Co: 0.05kg , Cr: 0.5 kg, Mn: 0.7 kg, Bi: 0.7kg, In: 0.1kg, Tl: 0.15kg, B: 0.01kg, C: 0.01kg, Zr: 2.8kg, Pr: 0.1kg, Sc: 0.6kg , Fe: 5kg, Si: 10kg, Zn: 280kg, Al: 677.28kg.

[0087] The following steps are the same as in Example 1.

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Abstract

The invention discloses a Mg-contained multi-combination modified low-zinc hot-dipping aluminium-plated alloy plating material and a preparation method thereof. The low-zinc hot-dipping aluminium-plated alloy plating material comprises the following elements by weight percent: Zn 28, Mg 10<-4> to 15, alloy reinforcer 10<-4> to 6.0, solvent passivator 10<-4> to 1.0, precipitation hardener 10<-4> to 0.5, grain refiner 10<-4> to 1.0, rare earth additive 10<-4> to 1.0, matrix interface reaction buffer 0.001 to 2.0, and Al and inevitable trace impurities in balancing amount. The low-zinc hot-dipping aluminium-plated alloy plating material enables a plating liquor and a plating to have good wetting properties and strong adhesive force to a matrix, has a favorable prospect to replace hot dipping and zinc alloys, can enhance the balanced development between the iron steel industry, and the aluminium industry and the zinc industry, and realizes a breakthrough development on low-cost industrialized application of novel plating materials.

Description

technical field [0001] The invention relates to an aluminum alloy coating material and a preparation method thereof, in particular to a Mg-containing multi-combination metamorphic low-zinc hot-dip aluminum alloy coating material and a preparation method thereof. Background technique [0002] The loss caused by corrosion to steel is extremely serious. According to incomplete statistics, 1 / 3 of the world's annual steel production is lost due to corrosion, and the annual loss in China alone is hundreds of millions of yuan. At the same time, corrosion can also cause casualties. . At present, there are two effective methods to prevent and control the corrosion of steel materials: one is metal alloying; the other is metal coating anticorrosion method. The production process of metal alloying is complex and expensive, so its popularity is limited. Hot-dip galvanizing is recognized as one of the most effective and direct methods of protecting steel in the anti-corrosion method of ...

Claims

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Application Information

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IPC IPC(8): C23C2/12C22C21/12C22C1/02
CPCC23C2/12C22C1/026C22C21/10
Inventor 张中可门三泉车云
Owner GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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