Re-containing zinc alloy for hot-dip galvanizing of low carbon steel with long corrosion-resistant service life

A hot-dip galvanized and corrosion-resistant technology, applied in the field of alloys, can solve the problems of reduced mechanical properties and deterioration of actual performance of materials, and achieves the effect of hindering oxidation and volatilization, and preventing rapid evaporation and oxidation.

Inactive Publication Date: 2018-06-22
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation process easily leads to the reduction of the existing mechanical properties after drawing in the hot-dip g

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A Re-containing zinc alloy for hot-dip galvanizing of low-carbon steel with excellent corrosion resistance life at 460-600 degrees. In terms of weight percentage, the chemical composition of the material is: Ba: 0.6wt.%, Re: 0.5wt.%, Ge: 0.9wt.%, Cu: 3.2wt.%, Bi: 1.8wt.%, Mo: 0.3 wt.%, the balance is zinc. Preparation method: Add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 550 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid at 550 degrees After heat preservation and standing for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into required round ingots, and the ingot moving speed is 14m / min. The ingot can be used as a zinc alloy for hot-dip galvanizing for anti-corrosion coating treatment of steel; wherein, the working temperature of the...

Embodiment 2

[0022] A Re-containing zinc alloy for hot-dip galvanizing of low-carbon steel with excellent corrosion resistance life at 460-600 degrees. By weight percentage. In terms of weight percentage, the chemical composition of the material is: Ba: 0.7wt.%, Re: 0.4wt.%, Ge: 0.8wt.%, Cu: 3.8wt.%, Bi: 1.6wt.%, Mo: 0.2 wt.%, the balance is zinc. Preparation method: Add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 550 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid at 550 degrees After heat preservation and standing for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot, and the ingot moves down at a speed of 12m / min. The ingot can be used as a zinc alloy for hot-dip galvanizing for anti-corrosion coating treatment of steel; wher...

Embodiment 3

[0025] A Re-containing zinc alloy for hot-dip galvanizing of low-carbon steel with excellent corrosion resistance life at 460-600 degrees. By weight percentage. In terms of weight percentage, the chemical composition of the material is: Ba: 0.6wt.%, Re: 0.5wt.%, Ge: 0.8wt.%, Cu: 3.2wt.%, Bi: 1.9wt.%, Mo: 0.2 wt.%, the balance is zinc. Preparation method: Add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 550 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid at 550 degrees After heat preservation and standing for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into required round ingots, and the ingot moving speed is 16m / min. The ingot can be used as a zinc alloy for hot-dip galvanizing for anti-corrosion coating treatment of steel; wherein, the wor...

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PUM

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Abstract

The invention discloses Re-containing zinc alloy for hot-dip galvanizing of low carbon steel with long corrosion-resistant service life and a processing technique thereof. The zinc alloy is prepared from, by weight, 0.5-0.8 wt.% of Ba, 0.4-0.6 wt.% of Re, 0.8-1.2 wt.% of Ge, 3.0-5.0 wt.% of Cu, 1.5-3.0 wt.% of Bi, 0.2-0.4 wt.% of Mo and the balance zinc. The zinc alloy facilitates the innovation and optimization of the underlying properties of traditional hot-dip galvanizing and has positive significance to the development and improvement of the whole hot-dip galvanizing industry and technologies thereof.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc alloy. Background technique [0002] The most widely used steel material in the industry will be corroded to varying degrees when used in environments such as the atmosphere, sea water, soil, and building materials. According to statistics, the annual loss of steel materials due to corrosion in the world can account for about 1 / 3 of its total output. In order to ensure the normal use of steel products and prolong their service life, the anti-corrosion protection technology of steel has been widely valued by people. [0003] In order to make the surface of the fastener have some special function and at the same time give it a decorative appearance, it is generally treated by galvanizing (electro-galvanizing and hot-dip galvanizing). Because zinc is not easy to change in dry air, but in humid air, a very dense zinc carbonate film can be formed on the surface, which can ef...

Claims

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Application Information

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IPC IPC(8): C22C18/02C23C2/06
CPCC22C18/02C23C2/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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