碳中和背景下热镀锌替代技术探讨

杨甫, 钟路, 夏思瑶, 高名传

doi:10.16577/j.issn.1001-1560.2022.0353

材料保护 >

2022 , Vol. 55 >Issue 12: 150 - 155

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0353

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碳中和背景下热镀锌替代技术探讨

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武汉材料保护研究所有限公司

杨甫(1989-)，工程师，主要从事锌片涂层领域的材料、工艺和应用研究， E-mail:fyangrimp＠163.com

收稿日期: 2022-06-23

修回日期: 2022-07-20

录用日期: 2022-08-17

网络出版日期: 2023-12-27

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Exploration of Hot-Dip Galvanising Alternatives under Carbon Neutrality Target

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(Wuhan Research Institute of Materials Protection， Wuhan 430030， China)

Received date: 2022-06-23

Revised date: 2022-07-20

Accepted date: 2022-08-17

Online published: 2023-12-27

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摘要

热镀锌由于其优异的耐蚀性能以及较低成本已成为使用最广泛的锌基覆盖层技术之一，但该技术存在能耗高、待镀工件尺寸受限、不适合现场施工等不足。为此，探讨了能够替代热镀锌的其他锌基覆盖层技术，并从首次维修寿命、寿命周期成本2 方面因素对这些锌基覆盖层技术进行了比较。结果表明:热镀锌技术在性能和成本方面具有不可替代性。但热镀锌在生命周期中需要消耗大量锌锭和能源，直接或间接产生较大的碳足迹数值，在国家碳中和目标下，该技术可能会受到限制。在“双碳”目标下，已经出现了一些替代热镀锌技术的实际应用，最后展望了碳中和背景下最具替代潜力的锌基覆盖层技术。

关键词： 热镀锌; 替代技术; 首次维修寿命; 寿命周期成本; 碳足迹

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杨甫, 钟路, 夏思瑶, 高名传 . 碳中和背景下热镀锌替代技术探讨[J]. 材料保护, 2022 , 55(12) : 150 -155 . DOI: 10.16577/j.issn.1001-1560.2022.0353

Abstract

Hot-dip galvanizing is one of the most widely applied zinc coating techniques due to its excellent corrosion resistance and low cost.However， this technology still has shortcomings such as high energy consumption， limited size of the workpiece to be plated， and unsuitable for field plating. Therefore， in this paper， other zinc coating techniques that could be alternatives to hot-dip galvanizing were discussed， and the lifes to first maintenance and life cycle costs of these zinc coatings were compared. Results revealed that hot-dip galvanizing was irreplaceable for its advantages in performance and cost. Nevertheless， hot-dip galvanizing consumed a large amount of zinc ingots and energy during the life cycle， which directly or indirectly produced a large carbon footprint. So this technology might be restricted due to the national carbon neutral goal. Some practical applications of alternatives to hot-dip galvanizing were developed under carbon neutrality target. Finally， the most promising alternatives to hot-dip galvanizing under carbon neutrality target were prospected.

Key words： hot-dip galvanizing; alternative; life to first maintenance; life cycle cost; carbon footprint

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