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Multi-combination degenerative low-zinc hot-dipped aluminum alloy coating material

A technology of hot-dip plating and aluminum alloy, which is applied in the field of low-zinc hot-dip aluminum alloy coating materials, can solve the problems of high zinc content, shortage of zinc resources, and high cost, and achieve good extensibility, rich aluminum resources, and low cost Effect

Inactive Publication Date: 2015-03-11
GUIZHOU ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a multi-combination metamorphic low-zinc hot-dip aluminum alloy coating material to solve the problem of high cost caused by the high zinc content of the coating material used in the current metal anti-coating anti-corrosion method , to alleviate the shortage of zinc resources and other issues

Method used

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Embodiment Construction

[0017] According to the weight percentage of the elements, the alloy composition is Zn≤15, Si: 0.5~2.5, alloy strengthening agent Cu: 3, polarization modifier Au: 0.5, solvent passivating agent Cr: 0.5, precipitation hardening agent Cd: 0.3, grain refiner Ti: 0.5, rare earth additive Ce: 0.5, matrix interface reaction buffer: 1, the rest is Al and unavoidable trace impurities.

[0018] The rest is Al and unavoidable trace impurities, and the matrix interface reaction buffer is Fe, Se or Te or a mixture of the three substances.

[0019] Select a group of elements according to the formula combination table, according to the percentage by weight: Si: 1, alloy strengthening agent Cu: 3, polarization modifier Au: 0.5, solvent passivator Cr: 0.5, precipitation hardening agent Cd: 0.3, Grain refiner Ti: 0.5, rare earth additive Ce: 0.5, matrix interface reaction buffer: Fe: 1, second solvent element Zn: 10, the balance is Al;

[0020] The total amount of alloy prepared is 1000kg, th...

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Abstract

The invention discloses a multi-combination degenerative low-zinc hot-dipped aluminum alloy coating material. The alloy comprises the following components: by weight, smaller than or equal to 15% of zinc (Zn), 0.5%-2.5% of silicon (Si), 3% of alloy enhancer copper (Cu), 0.5% of polarization alterant gold (Au), 0.5% of solvent passivator chrome (Cr), 0.3% of sediment hardening agent cadmium (Cd), 0.5% of grain refiner titanium (Ti), 0.5% of rare earth addition cerium (Ce), 1% of matrix interfacial reaction buffering agent, with the balance being aluminum (Al) and inevitable trace impurities. The Multi-combination degenerative low-zinc hot-dipped aluminum alloy coating material effectively solves the problem that the proportion of the hot-dip galvanizing occupying the zinc is high, and the zinc resource is saved. A great quantity of the aluminum is added to replace the zinc in the aluminum alloy coating material for hot dipping, due to the fact that the aluminum resource is rich and the cost is low, the comprehensive cost of the coating material is reduced.

Description

technical field [0001] The invention relates to an aluminum alloy coating material, in particular to a multi-combination metamorphic low-zinc hot-dip aluminum alloy coating material. Background technique [0002] Due to carbon and other impurities in steel, long-term exposure to the air will cause oxidation and corrosion. The higher the carbon content, the easier it is to be corroded. The temperature, humidity, oxygen content, and pH of the environment in which the steel is located will affect Corrosion has an impact. The higher the temperature, the greater the humidity, the more oxygen, and the overacid environment will greatly accelerate the corrosion rate. At present, there are two effective methods to prevent and control the corrosion of steel materials: one is metal alloying; Add metal coating anti-corrosion method on steel surface. The production process of metal alloying is complex and expensive, so its popularity is limited. Hot-dip galvanizing is recognized as one...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/12C22C21/10C22C1/02
Inventor 张中可谢贵生李荣华朱绍严吴光进
Owner GUIZHOU ACAD OF SCI
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