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Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method

A technology for hot-dip galvanizing and iron and steel components, which is applied to the field of zinc alloys for hot-dip galvanizing of iron and steel components, zinc alloys and their hot-dip galvanizing methods and hot-dip galvanized aluminum-bismuth alloy ingots, which can solve the problems that have not been provided. Simple, reduce the thickness of the coating, etc., to achieve the effect of facilitating forklift transportation and stacking, reducing the rate of oxidation slag, and good corrosion resistance and mechanical properties of the coating

Active Publication Date: 2012-05-30
湖南株冶环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, the prior art does not provide easy-to-use zinc alloys suitable for hot-dip galvanizing of iron and steel components and ingots to improve the brightness of the coating, improve the fluidity of the zinc bath, and reduce the thickness of the coating.

Method used

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  • Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method
  • Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method
  • Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method

Examples

Experimental program
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Effect test

Embodiment 1

[0021] The hot-dip galvanized aluminum-bismuth alloy used for hot-dip galvanizing of steel components has a composition of 0.008% (wt) Al; 0.02% (wt) Bi; the rest is zinc and unavoidable impurities.

[0022] The hot-dip galvanized aluminum-bismuth alloy ingot is a "T"-shaped rectangular zinc ingot body 1 with two symmetrical ears 3, and the upper plane and the bottom of the zinc ingot body 1 are planes. One of the ear hooks 3 is provided with a hanging hole 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 900kg, the length L of the ingot body is 1160mm, the width B is 580mm, and the height H is 260mm.

[0023] The above-mentioned hot-dip galvanized aluminum-bismuth alloy ingot is used to hot-dip galvanize steel and steel components, and the zinc alloy ingot is melted into a zinc bath. The obtained zinc bath has stable and uniform alloy element content ...

Embodiment 2

[0025] The hot-dip galvanized aluminum-bismuth alloy used for hot-dip galvanizing of steel components has a composition of 0.012% (wt) Al; 0.08% (wt) Bi; the rest is zinc and unavoidable impurities.

[0026] The hot-dip galvanized aluminum-bismuth alloy ingot is a rectangular zinc ingot body 1 with two symmetrical ear warps 3 "T", and 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 body is 1200mm, the width B is 600mm, and the height H is 300mm.

[0027] The above-mentioned alloy ingot is used to hot-dip galvanize steel and steel components, and the zinc alloy ingot is melted into a zinc bath, and the obtained zinc bath has stable and uniform alloy element content and good fluidity.

Embodiment 3

[0029] The hot-dip galvanized aluminum-bismuth alloy used for hot-dip galvanizing of steel components has a composition of 0.008% (wt) Al; 0.08% (wt) Bi; the rest is zinc and unavoidable impurities.

[0030] Ingot type is with embodiment 1.

[0031] The above-mentioned alloy ingot is used to hot-dip galvanize steel and steel components, and the zinc alloy ingot is melted into a zinc bath, and the obtained zinc bath has stable and uniform alloy element content and good fluidity.

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Abstract

The invention relates to a zinc alloy for steel component galvanizing, the ingot shape and the method. The comprised component and weight proportion are as follows: 0.008%-0.012%(wt)Al,0.02%-0.08%(wt)Bi, the rest is zinc and unavoidable impurities. The ingot shape is 'T' cuboid with two symmetrical ear-warps, the bottom of cuboid is plane, ear-warps are equipped with hoisting holes, and the four sides are inclined plane which is narrow-end-up shape. It is characterized by direct fusion of the alloy to zinc bath, simple utilization, stable and homogeneous Al and Bi content in zinc alloy, improved coating brightness and zinc flowability, decreased coating thickness, and saved zinc plating cost. The proper zinc alloy ingot shape and weight meets the demand of zinc addition for large-capacity galvanizing equipment, and it is convenient for hoisting and cross transportation, specific surface area is small, which is suitable for multi-layer stacking storage.

Description

technical field [0001] The invention relates to a zinc alloy and its hot-dip galvanizing method and its hot-dip galvanized aluminum-bismuth alloy ingot, in particular to a zinc alloy used for hot-dip galvanizing of iron and steel components and its method and its hot-dip galvanized aluminum-bismuth alloy ingot. Background technique [0002] At present, the hot-dip galvanizing industry at home and abroad adopts zinc alloy bath for galvanizing. Zn-Al-Bi alloy is not only effective in improving the brightness of the coating, but also can significantly improve the fluidity of the zinc bath and reduce the thickness of the coating, which is an ideal hot-dip galvanizing solution. Zinc alloys for 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 steel components is also large, and the amount of zinc bath required ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/00C23C2/06
Inventor 匡立春窦传龙肖功明王全张伟
Owner 湖南株冶环保科技有限公司
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