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Zinc-aluminum alloy for high-heat-capacity hot dipping and replacing Galfan coating material

A coating material, zinc-aluminum alloy technology, applied in the field of alloys, can solve the problems of inability to improve product quality, poor control of aluminum concentration, particles on the surface of the coating, etc., to achieve long sacrificial protection time, excellent resistance to volatilization and oxidation resistance , the effect of reducing the corrosion rate

Inactive Publication Date: 2018-08-07
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, the aluminum concentration in hot-dip galvanized aluminum alloy is not well controlled, not only can not improve product quality, but will cause particles on the surface of the coating, and even defects such as missing plating, especially in batch hot-dip production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An alternative Galfan coating material for high heat capacity hot-dip zinc-aluminum alloys. In terms of weight percentage, the composition of the alloy is: Li: 0.2wt.%, Mg: 1.0wt.%, Ge: 0.2wt.%, Al: 30.0wt.%, Mo: 0.2wt.%, Te: 0.01wt. %, B: 0.01wt.%, the balance is zinc. Alloy preparation method: Add the above-mentioned raw materials into an induction furnace protected by argon gas, and use a silicon carbide crucible; add the above-mentioned raw materials into an atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating Form the alloy solution at 500-600 degrees, and use the electromagnetic stirring effect to fully stir for about 10 minutes; keep the alloy liquid at 500-600 degrees for 10 minutes, then cast it into the same level equipment as the hot top for semi-continuous casting into the required For round ingots, the ingot moving speed is 5-8m / min. The cast ingot can be used as a hot-dip galvanizing raw material for subsequent ho...

Embodiment 2

[0021] An alternative Galfan coating material for high heat capacity hot-dip zinc-aluminum alloys. In terms of weight percentage, the composition of the alloy is: Li: 0.3wt.%, Mg: 2.0wt.%, Ge: 0.4wt.%, Al: 35.0wt.%, Mo: 0.3wt.%, Te: 0.02wt. %, B: 0.02wt.%, the balance is zinc. Alloy preparation method: Add the above-mentioned raw materials into an induction furnace protected by argon gas, and use a silicon carbide crucible; add the above-mentioned raw materials into an atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating Form the alloy solution at 500-600 degrees, and use the electromagnetic stirring effect to fully stir for about 10 minutes; keep the alloy liquid at 500-600 degrees for 10 minutes, then cast it into the same level equipment as the hot top for semi-continuous casting into the required For round ingots, the ingot moving speed is 5-8m / min. The cast ingot can be used as a hot-dip galvanizing raw material for subsequent ho...

Embodiment 3

[0024] An alternative Galfan coating material for high heat capacity hot-dip zinc-aluminum alloys. In terms of weight percentage, the composition of the alloy is: Li: 0.3t.%, Mg: 1.5wt.%, Ge: 0.3wt.%, Al: 32.0wt.%, Mo: 0.3wt.%, Te: 0.02wt. %, B: 0.01wt.%, the balance is zinc. Alloy preparation method: Add the above-mentioned raw materials into an induction furnace protected by argon gas, and use a silicon carbide crucible; add the above-mentioned raw materials into an atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating Form the alloy solution at 500-600 degrees, and use the electromagnetic stirring effect to fully stir for about 10 minutes; keep the alloy liquid at 500-600 degrees for 10 minutes and then cast it into the same level equipment as the hot top for semi-continuous casting. For round ingots, the ingot moving speed is 5-8m / min. The cast ingot can be used as a hot-dip galvanizing raw material for the hot-dip galvanizing trea...

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PUM

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Abstract

The invention discloses zinc-aluminum alloy for high-heat-capacity hot dipping and replacing a Galfan coating material as well as a processing technology of the zinc-aluminum alloy. The zinc-aluminumalloy comprises the following components by weight percent: 0.2 to 0.3 percent of Li, 1.0 to 2.0 percent of Mg, 0.2 to 0.4 percent of Ge, 30.0 to 35.0 percent of Al, 0.2 to 0.4 percent of Mo, 0.01 to0.03 percent of Te, 0.01 to 0.03 percent of B, and the balance of zinc. The zinc-aluminum alloy can substitute the Galfan coating material to perform the hot-dip galvanization production; and moreover, an obtained product is higher in corrosion resistance and production efficiency. The zinc-aluminum alloy has important significance for improving the overall level of the hot dipping industry in China.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc-aluminum alloy. Background technique [0002] The damage of steel by the chemical action of the surrounding medium is called corrosion. During corrosion, a chemical or electrochemical heterogeneous reaction occurs at the metal interface. This will significantly reduce the mechanical properties of metal materials such as strength, plasticity, and toughness, destroy the geometry of metal components, increase wear between parts, deteriorate electrical and optical physical properties, shorten the service life of equipment, and even cause disasters such as fire and explosion. sex accident. According to statistics, the annual loss of steel due to metal corrosion accounts for about 10-20% of the steel output in that year. Indirect losses such as production stoppages and power outages caused by steel corrosion accidents are even more incalculable. [0003] The surface of steel ...

Claims

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Application Information

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IPC IPC(8): C22C18/04C22C1/02C23C2/06
CPCC22C18/04C22C1/02C23C2/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD