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A kind of zinc alloy for hot-dipping and hot-dip galvanizing method

A zinc alloy and hot-dip galvanizing technology, which is applied in the hot-dip galvanizing process, metal material coating process, coating, etc., can solve the problems of waste of zinc in the bottom dross, zinc alloy cannot be hot-dipped, etc., and achieve no color difference and uniform thickness , the effect of high coating quality

Active Publication Date: 2015-11-18
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] The invention solves the technical problem in the prior art that existing zinc alloys cannot be applied to hot-dip on the surface of steel materials with complex components and structures, and more bottom slag is generated to cause zinc waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A zinc alloy S1 for hot-dipping, the composition of which is Al: 0.001wt%; Ni: 0.002wt%; Mn: 0.1wt%; Ti: 0.0005wt%; Cu: 0.002wt%; Si: 0.0005wt%; It is an inevitable impurity carried by Zn and zinc alloys.

[0022] The high-silicon and high-manganese steel large pipe tower with a right-angle base was hot-dipped for 3 minutes by using the zinc alloy S1 for hot-dipping in this embodiment, and the thickness of the formed coating was uniform, and the thickness of the coating was distributed in the range of 150-170 μm, and the adhesion test was good. , the coating is bright and clean, and basically no bottom slag is produced.

Embodiment 2

[0024] A zinc alloy S2 for hot dipping, the composition of which is Al: 0.005wt%; Ni: 0.1wt%; Mn: 0.005wt%; Ti: 0.0008wt%; Cu: 0.0005wt%; Si: 0.0005wt%; It is an inevitable impurity carried by Zn and zinc alloys.

[0025] Using the zinc alloy S2 for hot-dipping of this embodiment to hot-dip high-silicon and high-manganese steel large pipe towers with four reinforcing feet for 3 minutes, the thickness of the formed coating is uniform, and the thickness distribution of the coating is 130-160 μm, and the adhesion The test is good, the coating is bright and clean, and produces very little bottom dross.

Embodiment 3

[0027] A zinc alloy S3 for hot dipping, the composition of which is Al: 0.01wt%; Ni: 0.08wt%; Mn: 0.02wt%; Ti: 0.0009wt%; Cu: 0.001wt%; Si: 0.003wt%; It is an inevitable impurity carried by Zn and zinc alloys.

[0028] The high-silicon and high-manganese steel large pipe tower with discs at both ends was hot-dip-coated for 3 minutes by using the zinc alloy S3 for hot-dipping of this embodiment, and the thickness of the coating formed was uniform, and the thickness distribution of the coating was 110-140 μm, and the adhesion was strong. The test is good, the coating is bright and clean, and there is very little bottom dross.

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PUM

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Abstract

The invention provides a zinc alloy for hot-dip galvanizing. By taking the total mass of the zinc alloy for hot-dip galvanizing as reference, the zinc alloy for hot-dip galvanizing contains 0.001-0.2wt% of Al, 0.002-0.1wt% of Ni, 0.001-0.1wt% of Mn, 0.0005-0.001wt% of Ti, 0.0005-0.002wt% of Cu, 0.0005-0.01wt% of Si and the balance of Zn and inevitable impurities carried by the zinc alloy. The zinc alloy for hot-dip galvanizing is suitable for a hot-dip galvanizing process for steel material with various complex components, and an alloy plated layer formed after hot-dip galvanizing has the advantages of uniform thickness, no chromatic aberration, no Sandelin effect, no excess zinc tumors, relatively high quality of the plated layer and effect of simultaneously reducing the production of bottom slag.

Description

technical field [0001] The invention belongs to the technical field of hot-dip galvanizing, and in particular relates to a zinc alloy for hot-dip galvanizing and a hot-dip galvanizing method. Background technique [0002] With the rapid development of military industry, automobile, shipbuilding, home appliances, construction and other industries, the demand for hot-dip galvanized products is increasing year by year, and the requirements for product quality are constantly improving. The principle of hot-dip galvanizing is: clean the steel structure, then solvent treatment, after drying, immerse in the zinc solution, the iron on the surface of the steel structure reacts with the molten zinc, and forms an alloy coating on the surface of the steel structure. In order to reduce costs, improve the corrosion resistance, surface characteristics and good mechanical properties of hot-dip galvanized products, reduce the amount of bottom slag generated, and reduce the effective zinc was...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/06C22C18/00C22C18/02C22C18/04C23C2/38
Inventor 张伟陈顺张德晶李正明匡立春林文军刘滨萍吕娟李迪汉
Owner 湖南株冶环保科技有限公司