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Spangle-free Re-containing zinc alloy for hot-dip galvanizing of low-activity Si steel

A hot-dip galvanizing and low-activity technology, which is applied in the field of alloys, can solve the problems of difficult maintenance of the plating solution, and achieve the effects of short hot-dipping time, good corrosion resistance, and low cost of funds

Inactive Publication Date: 2018-07-24
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electroless nickel plating method needs to be carried out at a higher temperature, and the maintenance of the plating solution is difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A spangle-free zinc-containing zinc alloy for hot-dip galvanizing of low-activity Si steel at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.2wt.%, Nb: 0.4wt.%, Ge: 2.5wt.%, Re: 0.5wt.%, Sc: 1.2wt.%, Ce: 0.4wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 500-600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy The liquid is kept at 500-600 degrees for 10 minutes and then cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot. The ingot moves down at a speed of 5-10m / min. The ingot can be used as raw material for hot-dip galvanizing for subsequent hot-dip galvanizing treatment to protect steel wires. The working temperature of...

Embodiment 2

[0020] A spangle-free zinc-containing zinc alloy for hot-dip galvanizing of low-activity Si steel at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.4wt.%, Nb: 0.4wt.%, Ge: 2.8wt.%, Re: 0.6wt.%, Sc: 1.2wt.%, Ce: 0.2wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 500-600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy The liquid is kept at 500-600 degrees for 10 minutes and then cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot. The ingot moves down at a speed of 5-10m / min. The ingot can be used as raw material for hot-dip galvanizing for subsequent hot-dip galvanizing treatment to protect steel wires. The working temperature of...

Embodiment 3

[0023] A spangle-free zinc-containing zinc alloy for hot-dip galvanizing of low-activity Si steel at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.5wt.%, Nb: 0.6wt.%, Ge: 2.4wt.%, Re: 0.6wt.%, Sc: 1.2wt.%, Ce: 0.3wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 500-600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy The liquid is kept at 500-600 degrees for 10 minutes and then cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot. The ingot moves down at a speed of 5-10m / min. The ingot can be used as raw material for hot-dip galvanizing for subsequent hot-dip galvanizing treatment to protect steel wires. The working temperature of...

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Abstract

The invention discloses a spangle-free Re-containing zinc alloy for hot-dip galvanizing of low-activity Si steel and a processing technique thereof. The alloy is prepared from the following componentsin percentage by weight: 1.2 to 1.8 percent of Li, 0.4 to 0.8 percent of Nb, 2.0 to 3.0 percent of Ge, 0.5 to 0.8 percent of Re, 1.0 to 1.5 percent of Sc, 0.2 to 0.6 percent of Ce, and the balance ofzinc. A galvanized layer obtained by the alloy for hot dip galvanizing not only has the mechanical properties of a common inactive steel surface galvanized layer, but also can eliminate the generation of spangles. In addition, the alloy has the characteristics of low production cost and large-scale production.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc alloy. Background technique [0002] As we all know, the corrosion of metal materials pervades all areas of the national economy and people's lives. Corrosion has brought huge economic losses and harm to human beings. According to incomplete statistics, the annual loss of metal due to corrosion in the world is as high as 230 million tons, which accounts for about 30% of the steel production in that year. According to the statistics of developed countries, the economic loss caused by corrosion accounts for about 1-5% of the gross national product of the year. [0003] The problem of metal corrosion in my country is also quite serious. The economic loss caused by corrosion accounts for about 4% of the national economic output value every year, and the indirect loss caused by corrosion is even more difficult to estimate. For a long time, people have been seeking various met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C22C1/02C23C2/06
CPCC22C18/00C22C1/02C23C2/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD