Anti-corrosion Ta and Cr containing zinc alloy applicable to active steel hot dipping zinc plating

A hot-dip galvanizing and zinc alloy technology, applied in the field of alloys, can solve the problems of development cycle, design quality and process quality, and the inability of enterprises to obtain greater breakthroughs, etc.

Inactive Publication Date: 2018-07-24
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to guarantee the development cycle, design quality and the quality of the technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A corrosion-resistant Ta and Cr-containing zinc alloy for hot-dip galvanizing of active steel. In terms of weight percentage, the chemical composition of the material is: Sr: 0.5wt.%, Rh: 0.4wt.%, Ta: 1.2wt.%, Cr: 2.0wt.%, Ni: 1.0wt.%, Ge: 0.5 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 aluminum materials; wherein, the working temperature of the hot-dip galvanizing is ...

Embodiment 2

[0021] A corrosion-resistant Ta and Cr-containing zinc alloy for hot-dip galvanizing of active steel. In terms of weight percentage, the chemical composition of the material is: Sr: 0.6wt.%, Rh: 0.4wt.%, Ta: 1.4wt.%, Cr: 2.4wt.%, Ni: 1.5wt.%, Ge: 0.6 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 aluminum materials; wherein, the working temperature of the hot-dip galvanizing is ...

Embodiment 3

[0024]A corrosion-resistant Ta and Cr-containing zinc alloy for hot-dip galvanizing of active steel. In terms of weight percentage, the chemical composition of the material is: Sr: 0.6wt.%, Rh: 0.5wt.%, Ta: 1.2wt.%, Cr: 2.8wt.%, Ni: 1.5wt.%, Ge: 0.6 wt.%, the balance is zinc. Preparation method: Add the above-mentioned raw materials into an induction furnace protected by the atmosphere, 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 to carry out semi-continuous casting into the required round ingot, 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 aluminum materials; wherein, the working temperature of the hot-di...

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PUM

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Abstract

The invention discloses anti-corrosion Ta and Cr containing zinc alloy applicable to active steel hot dipping zinc plating and a processing process thereof. The zinc alloy is prepared from the following ingredients in percentage by weight: 0.5 to 0.8 weight percent of Sr, 0.4 to 0.5 weight percent of Rh, 1.2 to 1.5 weight percent of Ta, 2.0 to 3.0 weight percent of Cr, 1.0 to 2.0 weight percent ofNi, 0.5 to 0.8 weight percent of Ge and the balance of zinc. The zinc alloy is favorable for the development of the zinc alloy for the active steel high-alloy hot dipping zinc plating; the excessiveroughening and the growth of compounds between the metals of zinc plating layers can be greatly reduced; the loose phase growth is obviously delayed.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc alloy. Background technique [0002] The melting point of zinc is very low, only 419.7°C, and it can be dipped in the temperature range of 450-480°C. The generally obtained gray coating consists of two layers: the outer layer is a zinc layer, and the inner layer is an iron-zinc intermetallic compound layer. The formation of intermetallic compounds can make the metallurgical bond between the coating and the substrate, and the adhesion is firm. [0003] Due to the good ductility of zinc, its alloy layer adheres firmly to the steel base, so hot-dip parts can be cold punched, rolled, drawn, bent, etc. without damaging the coating. The pure zinc layer is the most plastic galvanized layer in hot-dip galvanizing. Its properties are basically close to pure zinc, and it has ductility, so it is flexible. In the general atmosphere, a thin and dense layer of zinc oxide is formed on ...

Claims

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Application Information

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IPC IPC(8): C22C18/00C22C1/02C23C2/06
CPCC22C18/00C22C1/02C23C2/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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