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A rare earth zinc-nickel-magnesium alloy ingot for hot-dipping and its manufacturing method

A technology for alloy ingots and rare earth metals, which is applied to rare earth zinc-nickel-magnesium alloy ingots for hot-dip galvanizing and its manufacturing field, can solve the problems of different anti-corrosion years, short anti-corrosion years, etc. Effect

Inactive Publication Date: 2012-02-22
NINGBO HUYONG ELECTRIC POWER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the times, people have higher and higher requirements for coatings. The alloy materials used in the existing hot-dip galvanizing have a short anti-corrosion life, and the anti-corrosion life in different environments is different.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The composition and weight of the rare earth zinc-nickel-magnesium alloy ingot for hot-plating are: 5.00wt% nickel, 0.25wt% magnesium, 4wt% aluminum, 0.06wt% lanthanum, 0.06wt% neodymium and the rest of the zinc, wherein the unavoidable impurities The content is not more than 0.03wt%, and the iron content in the impurities is less than 0.01wt%, the silicon content is less than 0.01wt%, the lead content is less than 0.005wt%, and the cadmium content is less than 0.005wt%.

[0031] Step 1: Add the above-mentioned substances into an intermediate frequency vacuum melting apparatus at a temperature of 1400°C to 1500°C to melt, stir evenly, and cast an ingot into an alloy ingot;

[0032] Below is the method for hot-dip plating using the alloy ingot obtained in step 1:

[0033] Step 2: Add 97wt% of zinc to the hot-dip galvanized alloy melting furnace to melt it into zinc liquid, then take 3wt% of the alloy ingot obtained in step 1, add it to the molten zinc liquid, and melt it...

Embodiment 2

[0041] The hot-dip rare earth zinc-nickel-magnesium alloy ingot is a zinc-based alloy, and its composition and weight percentage are:

[0042] Nickel: 3.00wt%, magnesium: 0.20wt%, aluminum: 4.00wt%, lanthanum 0.06wt%, praseodymium 0.05wt%, cerium 0.03wt%, neodymium 0.06wt%, and the balance zinc.

[0043] All the other are with embodiment 1.

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PUM

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Abstract

The invention relates to a rare earth zinc-nickel-magnesium alloy ingot for hot-plating, which is characterized in that it contains 2.00-5.00 wt% of nickel, 0.20-0.25 wt% of magnesium, 3.00-5.00 wt% of aluminum, and 0.11-0.25 wt% of rare earth metal mixture. and the rest of zinc; wherein the rare earth metal mixture includes 0.06-0.08% of lanthanum, 0-0.05% of cerium, 0-0.06% of praseodymium, 0.05-0.07% of neodymium, and the content of impurities is not more than 0.03wt%. Utilize the solution prepared by the alloy ingot provided by the present invention to plate the workpiece, because the fluidity of the plating solution is better, so the plating temperature can be reduced, the appearance of the obtained plating is whitish and bright, and the plating is uniform, smooth and effective. Gloss, and the coating has a longer corrosion resistance and is not affected by the environment.

Description

technical field [0001] The invention relates to an alloy material for metal structure surface plating and a manufacturing method thereof, in particular to a rare earth zinc-nickel-magnesium alloy ingot for hot-plating and a manufacturing method thereof. Background technique [0002] Since France applied hot-dip galvanizing to industry in 1836, it has a history of more than 170 years. However, the hot-dip galvanizing process technology has been developed on a large scale with the rapid development of cold-rolled strip steel in the past fifty years. Its main methods are: [0003] 1. Improved Sendzimir method: It is a process method for continuous hot-dip galvanizing; it connects the independent oxidation furnace and reduction furnace in the Sendzimir method by a passage with a smaller cross-sectional area, which includes pre- The entire annealing furnace including the heating furnace, the reduction furnace and the cooling section constitute an organic whole. The continuous ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/06C22C1/02C22C18/04
Inventor 肖锋李忠贺刘春旭
Owner NINGBO HUYONG ELECTRIC POWER MATERIAL