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

A technology of hot-dip galvanizing and steel components, applied in hot-dip galvanizing process, metal material coating process, coating and other directions, can solve the problem of not providing simple and easy to use, and achieve convenient forklift forklift and stacking, wetting performance Good, good galvanized quality effect

Active Publication Date: 2007-12-12
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 with components and ingot shapes suitable for hot-dip galvanizing of iron and steel components, so as to improve the brightness of the coating, improve the wetting performance between the iron substrate and the zinc bath, and reduce the cost of galvanizing

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The hot-dip galvanized aluminum rare earth alloy used for hot-dip galvanizing of steel components has a composition of 0.008% (wt) Al; 0.006% (wt) RE; the rest is zinc and unavoidable impurities.

[0025] The ingot type of hot-dip galvanized aluminum rare earth alloy 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. One of the ear hooks 3 is provided with a hanging hole 2 . The four sides of the zinc ingot body 1 are inclined planes, 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 shape is 1160mm, the width B is 580mm, and the height H is 260mm.

[0026] The above-mentioned hot-dip galvanized aluminum rare earth alloy ingot is used to hot-dip galvanize steel components, and the zinc alloy ingot is melted into a zinc bath. The obtained zinc bath has stable and uniform alloy element con...

Embodiment 2

[0028] The hot-dip galvanized aluminum rare earth alloy used for hot-dip galvanizing of steel components has a composition of 0.012% (wt) Al; 0.006% (wt) RE; the rest is zinc and unavoidable impurities.

[0029] The hot-dip galvanized aluminum rare earth 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. 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.

[0030] The above-mentioned hot-dip galvanized aluminum rare earth alloy ingot is used to hot-dip galvanize steel components, and the zinc alloy ingot is melted into a zinc bath. The obtained zinc bath has stable and uniform alloy element content, goo...

Embodiment 3

[0032] The hot-dip galvanized aluminum rare earth alloy used for hot-dip galvanizing of iron and steel components consists of 0.008% (wt) Al; 0.01% (wt) RE; the rest is zinc and unavoidable impurities, and the ingot shape is the same as in Example 1.

[0033] The above-mentioned hot-dip galvanized aluminum rare earth alloy ingot is used to hot-dip galvanize steel components, and the zinc alloy ingot is melted into a zinc bath. The obtained zinc bath has stable and uniform alloy element content, good fluidity, good wettability, and excellent corrosion resistance of the coating. and good mechanical properties.

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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,0.006%-0.01%(wt)RE, 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 said alloy to zinc bath, simple utilization, stable and homogeneous Al and rare earth 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, an ingot form thereof, and a hot-dip galvanizing method, in particular to a zinc alloy used for hot-dip galvanizing of iron and steel components, an ingot form thereof 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-RE alloy is very effective in improving the brightness of the coating, and can also improve the wetting performance of steel and zinc. It is an ideal hot-dip galvanizing Zinc alloys for zinc. 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 is large, and the preparation of the zinc bath is relatively difficult. At present, the preparation method of hot-dip galvanizing zinc ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C23C2/06
Inventor 匡立春王辉窦传龙张伟朱北平
Owner 湖南株冶环保科技有限公司
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