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Novel Nb-containing zinc alloy for low-carbon steel hot dip galvanizing without spangle on surface

A hot-dip galvanized, low carbon steel technology, applied in the field of alloys, can solve the problem of no efficient and simple production method processing technology, and achieve excellent volatilization resistance and oxidation resistance, good corrosion resistance, and easy for workers to operate. Effect

Inactive Publication Date: 2018-07-13
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the higher requirements of the automobile and other industries, people have long proposed the idea of ​​eliminating spangles on low-carbon steel and making spangles thinner, but so far there is no efficient and simple production method or processing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of Nb-containing zinc alloy for hot-dip galvanizing of low-carbon steel without spangles on the surface at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.8wt.%, Nb: 0.2wt.%, W: 0.4wt.%, In: 1.5wt.%, Sc: 1.2wt.%, Th: 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 wor...

Embodiment 2

[0019] A kind of Nb-containing zinc alloy for hot-dip galvanizing of low-carbon steel without spangles on the surface at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.0wt.%, Nb: 0.5wt.%, W: 0.6wt.%, In: 1.8wt.%, Sc: 1.4wt.%, Th: 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 wor...

Embodiment 3

[0022]A kind of Nb-containing zinc alloy for hot-dip galvanizing of low-carbon steel without spangles on the surface at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.9wt.%, Nb: 0.4wt.%, W: 0.5wt.%, In: 1.9wt.%, Sc: 1.8wt.%, Th: 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 work...

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Abstract

The invention discloses novel Nb-containing zinc alloy for low-carbon steel hot dip galvanizing without spangle on surface and a processing technology of the novel Nb-containing zinc alloy. The alloyis prepared from the following components in percentage by weight: 0.8-1.2wt% of Li, 0.2-0.6wt% of Nb, 0.4-0.8wt% of W, 1.5-2.0wt% of In, 1.0-2.0wt% of Sc, 0.2-0.4wt% of Th and the balance of zinc. Development of the alloy can solve the phenomenon that spangles are generated on the surface of a plating piece in industrial hot dip galvanizing production and also has the characteristics of low production cost and convenience in 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] Steel has the advantages of good strength, formability, economical production and recyclability, and occupies a very important position in the process of industrial construction. However, steel easily reacts with the environment to form stable oxides or salts. Corrosion of steel reduces the service life of steel, brings huge economic losses to human beings, and seriously pollutes the environment. Therefore, people have adopted various protective technologies to improve the anticorrosion performance of steel. [0003] Since the standard electrode potential of zinc is negative to that of iron, the galvanized layer has the effect of sacrificial anode protection of the steel base in water and humid air, which can greatly prolong the service life of the steel. The galvanized layers commonly used in industry include hot-dip galvanized, elect...

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
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