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Hot dipping zinc aluminum nickel bismuth rare earth alloy used for steel component hot dipping zinc and ingot case and method thereof

A technology of hot-dip galvanizing and rare earth alloys, applied in hot-dip plating process, metal material coating process, coating and other directions, can solve problems such as segregation and burning loss, achieve stable content, appropriate content, and reduce storage space. Effect

Active Publication Date: 2008-01-23
ZHUZHOU SMELTER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Still another object of the present invention is to provide a new hot-dip galvanizing method, which uses hot-dip galvanized aluminum-nickel-bismuth rare earth alloy ingots to directly melt into a zinc bath to solve various problems existing in the hot-dip galvanized zinc bath. Solve problems such as segregation and burning of elements to improve the brightness of the coating, effectively eliminate the Sandelin effect caused by active steel galvanizing, improve the wetting performance and flowability of the iron substrate and the zinc bath, and improve the corrosion resistance and mechanical properties of the coating. , reduce coating thickness, reduce cost

Method used

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  • Hot dipping zinc aluminum nickel bismuth rare earth alloy used for steel component hot dipping zinc and ingot case and method thereof

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Experimental program
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Effect test

Embodiment 2

[0026] A hot-dip galvanized aluminum-nickel-bismuth rare earth alloy for hot-dip galvanizing of steel components, the composition of which is 0.008% (wt) Al; 0.04% (wt) Ni; 0.02% (wt) Bi; 0.006% (wt) RE; The remainder is zinc and unavoidable impurities.

[0027] The hot-dip galvanized aluminum-nickel-bismuth rare-earth alloy ingot is in the shape of a rectangular zinc ingot body 1 with two symmetrical ears and a 3 "T" shape. The upper plane and the bottom of the zinc ingot body 1 are planes. Both ear hooks 3 are provided with hanging holes 2 . The four sides of the zinc ingot body 1 are inclined surfaces, the upper cross section of the zinc ingot body 1 is larger than the lower cross section, the ingot weight is 1100kg, the length L of the ingot shape is 1200mm, the width B is 600mm, and the height H is 300mm.

[0028] Use the above-mentioned hot-dip galvanized aluminum-nickel-bismuth rare earth alloy ingot to hot-dip galvanize steel components, the wetting performance and fl...

Embodiment 3

[0030] A hot-dip galvanized aluminum-nickel-bismuth rare earth alloy for hot-dip galvanizing of steel components, the composition of which is 0.008% (wt) Al; 0.06% (wt) Ni; 0.02% (wt) Bi; 0.01% (wt) RE; The remainder is zinc and unavoidable impurities.

[0031] Ingot type is with embodiment 1.

[0032] Use the above-mentioned hot-dip galvanized aluminum-nickel-bismuth rare earth alloy ingot to hot-dip galvanize steel components, the wetting performance and fluidity of the zinc bath are good, there is no Sandelin effect, the coating has good corrosion resistance and mechanical properties, and has no alloying elements. damage.

Embodiment 4

[0034] A hot-dip galvanized aluminum-nickel-bismuth rare earth alloy for hot-dip galvanizing of steel components, the composition of which is 0.012% (wt) Al; 0.04% (wt) Ni; 0.02% (wt) Bi; 0.006% (wt) RE; The remainder is zinc and unavoidable impurities.

[0035] Ingot type is with embodiment 2.

[0036] Use the above-mentioned hot-dip galvanized aluminum-nickel-bismuth rare earth alloy ingot to hot-dip galvanize steel components, the wetting performance and fluidity of the zinc bath are good, there is no Sandelin effect, the coating has good corrosion resistance and mechanical properties, and has no alloying elements. damage.

[0037] The present invention includes but is not limited to the above-mentioned embodiments, as long as the hot-dip galvanized Alnico-bismuth rare earth alloy ingot is directly melted into a zinc bath, it belongs to the protection scope of the present invention.

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Abstract

The invention relates to a zinc alloy used by steel structural component in zinc hot dip plating and the ingot shape and the method thereof. The alloy component and the weight per cent are of 0.008 per cent (wt) to 0.012 per cent (wt) Al, 0.04 per cent (wt) to 0.06 per cent (wt) Ni, 0.02 per cent (wt) to 0.08 per cent (wt) Bi, 0.006 per cent (wt) to 0.01 per cent (wt) RE, and zinc and impurity as the rest composition. The ingot shape is of T-shaped cuboid with two symmetrical ear curls; wherein, the bottom of the cuboid is a plane; the ear curls are provided with hoisting holes; the cuboid is of four included side planes, taking in a big top and small bottom shape. The zinc hot dip plating method is to melt the alloy directly into zinc bath; the application is simple; the zinc bath alloy elements Al, Bi, Ni and RE with stable and uniform content can alleviate or eliminate the Sandelin Effect generated by an active steel galvanization, perfect the wetting behavior and flow property of the iron matrix and the zinc bath, improve corrosion resistance performance and mechanical performance of the coating, reduce the thickness of the coating and lower the cost. With the appropriate shape as well as ingot weight, the zinc alloy ingot shape has the advantages of able to meet zinc adding requirement of the large capacity galvanization equipment, convenient hoisting and fork transport, small specific surface area, suitable for storage and multiple layers stacking tier, saving storing room, and stability as well as safety.

Description

technical field [0001] The invention relates to a zinc alloy, an ingot form and a method thereof, in particular to a zinc alloy used for hot-dip galvanizing of iron and steel components, an ingot form and a method thereof. Background technique [0002] At present, the hot-dip galvanizing industry at home and abroad adopts zinc alloy bath galvanizing. Zn-Al-Ni-Bi-RE alloy is not only very effective in improving the brightness of the coating, but also can effectively eliminate the Sandelin effect produced by active steel galvanizing. , improve the wettability and fluidity of the iron substrate and the zinc bath, improve the corrosion resistance and mechanical properties of the coating, and reduce the thickness of the coating. It is an ideal zinc alloy for hot-dip galvanizing. Zinc alloy baths are usually prepared with zinc alloy at the production site before use. Due to the generally large volume of steel components, the volume of the zinc bath equipment used for galvanizing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C23C2/06
Inventor 匡立春窦传龙王全王辉杨岳云
Owner ZHUZHOU SMELTER GRP
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