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Novel corrosion-resistant low-reactivity Al-Ba-Er aluminum alloy for hot dipping

An al-ba-er, low-reactivity technology, applied in the field of alloys, can solve the problems of difficulty in hot dip plating, easy oxidation, etc., to reduce dross and coating thickness, no oxidation inclusions, and good cold-formability. Effect

Inactive Publication Date: 2018-08-28
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively flexible nature of aluminum, it is very easy to oxidize, so hot-dip plating is more difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A new type of corrosion-resistant and low-reactivity Al-Ba-Er aluminum alloy for hot dip coating. In terms of weight percentage, the composition of the alloy is Na: 0.1wt.%, Nb: 0.4wt.%, Ba: 0.2wt.%, Ge: 1.0wt.%, Y: 0.2wt.%, Er: 0.1wt.% , P: 0.1wt.%, the balance is aluminum. The method for preparing the above-mentioned new type of corrosion-resistant and low-reactivity Al-Ba-Er aluminum alloy for hot dip coating includes the following steps: adding the raw materials in the above proportion into an induction furnace protected by argon gas, and using a silicon carbide crucible; Proportioning raw materials are added to the atmosphere-protected induction electric furnace, and silicon carbide crucible is used; the alloy solution is formed by induction heating to 700-800 degrees, and the electromagnetic stirring effect is used to fully stir for about 10 minutes; the alloy liquid is kept at 700-800 degrees After standing for 10 minutes, it is poured into the hot top and the sa...

Embodiment 2

[0018] A new type of corrosion-resistant and low-reactivity Al-Ba-Er aluminum alloy for hot dip coating. In terms of weight percentage, the composition of the alloy is Na: 0.2wt.%, Nb: 0.6wt.%, Ba: 0.3wt.%, Ge: 2.0wt.%, Y: 0.3wt.%, Er: 0.2wt.% , P: 0.2wt.%, the balance is aluminum. The method for preparing the above-mentioned new type of corrosion-resistant and low-reactivity Al-Ba-Er aluminum alloy for hot dip coating includes the following steps: adding the raw materials in the above proportion into an induction furnace protected by argon gas, and using a silicon carbide crucible; Proportioning raw materials are added to the atmosphere-protected induction electric furnace, and silicon carbide crucible is used; the alloy solution is formed by induction heating to 700-800 degrees, and the electromagnetic stirring effect is used to fully stir for about 10 minutes; the alloy liquid is kept at 700-800 degrees After standing for 10 minutes, it is poured into the hot top and the sa...

Embodiment 3

[0021] A new type of corrosion-resistant and low-reactivity Al-Ba-Er aluminum alloy for hot dip coating. In terms of weight percentage, the composition of the alloy is Na: 0.1wt.%, Nb: 0.5wt.%, Ba: 0.2wt.%, Ge: 1.5wt.%, Y: 0.2wt.%, Er: 0.1wt.% , P: 0.1wt.%, the balance is aluminum. The method for preparing the above-mentioned new type of corrosion-resistant and low-reactivity Al-Ba-Er aluminum alloy for hot dip coating includes the following steps: adding the raw materials in the above proportion into an induction furnace protected by argon gas, and using a silicon carbide crucible; Proportioning raw materials are added to the atmosphere-protected induction electric furnace, and silicon carbide crucible is used; the alloy solution is formed by induction heating to 700-800 degrees, and the electromagnetic stirring effect is used to fully stir for about 10 minutes; the alloy liquid is kept at 700-800 degrees After standing for 10 minutes, it is poured into the hot top and the sa...

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PUM

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Abstract

The invention discloses novel corrosion-resistant low-reactivity Al-Ba-Er aluminum alloy for hot dipping. The novel corrosion-resistant low-reactivity Al-Ba-Er aluminum alloy comprises, by weight percentage, 0.1-0.2% of Na, 0.4-0.6% of Nb, 0.2-0.3% of Ba, 1.0-2.0% of Ge, 0.2-0.3% of Y, 0.1-0.2% of Er, 0.1-0.2% of P and the balance aluminum. By means of the aluminum alloy, the current situation that at present, the field of hot dipping aluminum alloy of China is lag in technology is changed; and by means of technological innovation and optimization design, the development bottleneck of the production technology and device for hot dipping aluminum-steel plates applied to high-end fields of China is broken through. In the near future, the material can be definitely applied to more fields morewidely.

Description

Technical field [0001] The invention relates to the technical field of alloys, in particular to an aluminum alloy. Background technique [0002] Corrosion of steel refers to a damage phenomenon caused by chemical or electrochemical action when steel is in contact with surrounding media. Steel corrosion has brought a lot of inconvenience to production and life and caused huge economic losses. The world's annual direct economic losses caused by steel corrosion are about 700 billion US dollars, which is 6 times the total losses caused by natural disasters such as earthquakes, floods, and typhoons. my country's losses due to steel corrosion accounted for about 4% of the gross national product, and the amount of steel scrap due to corrosion accounted for about 25%-30% of the steel output that year. [0003] Hot-dip galvanizing is to make the molten zinc react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. When the surface of the galva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02C23C2/12
CPCC22C21/00C22C1/026C23C2/12
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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