What is hot dip galvanizing

Dissolve the zinc block into a molten state (the melting point of zinc is about 420°C), and then degrease (remove grease), wash, pickle (rust remove), and soak the parts to be plated in a flux before soaking them in a molten state Go into the zinc liquid, and then cool it to complete the so-called hot dip galvanizing process. Since the iron parts are immersed in the molten zinc, the alloy layer of iron and zinc has been smelted together, so under normal circumstances, there is no problem in being durable for 100 years.
Does the product need to be hot-dip galvanized?
What are the benefits of hot dip galvanizing on products?

01

Introduction to hot dip galvanizing

Hot-dip galvanizing is widely used in advanced countries, including electricity, telecommunications, roads, transportation, bridges, harbors, buildings, etc. Therefore, it is not an exaggeration to say that "where there is iron, there is hot-dip galvanizing." Taiwan is located in a subtropical humid marine environment. Corrosion problems are more serious than those in other countries. However, due to insufficient vigilance on corrosion prevention issues, we can see steel abandoned due to corrosion everywhere. It is really worth mentioning. People think deeply.
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02

Domestic and foreign hot dip galvanizing specifications

Hot-dip galvanizing is a common anti-corrosion method that is often applied to metal surfaces, especially steel products, to protect them from corrosion.

These specifications typically cover various aspects of the hot-dip galvanizing process, including coating thickness, adhesion, surface condition, inspection methods, and test standards. For specific applications, the applicable specifications should be selected based on the local regulations and relevant industry standards.  

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03

Design points

When designing hot-dip galvanized products, there are several key points to consider to ensure optimal corrosion protection and service life. This guide contains detailed instructions and instructions that should be noted when designing hot-dip galvanized products. Multiple factors such as material selection, design structure, surface treatment and construction technology are comprehensively considered to ensure that the final product has excellent anti-corrosion performance and service life.
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04

Hot dip galvanizing process

Hot-dip galvanizing is the process of immersing metal products in heated liquid zinc to form a galvanized layer to protect the metal surface from corrosion. The process includes surface cleaning, pre-galvanizing treatment, immersion in liquid zinc, extraction, cooling and inspection. First, the surface of the material is cleaned and degreased, then pickled or treated with potassium hydroxide, and then immersed in heated liquid zinc to completely cover it. After extraction, it is cooled to room temperature, and the thickness and quality of the coating are finally inspected to ensure compliance with specification requirements.
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05

Economic Benefit Analysis

Considerations in selecting rust prevention systems are often based on economics. However, the initial cost often does not represent the overall cost required for various types of anti-rust systems.

Maintenance costs may vary significantly from system to system. If it is difficult to get close to the workpiece during maintenance, or the operation needs to be stopped, or additional products and machinery are required to cover the work, or scaffolding needs to be set up, etc., all of the above operations can significantly increase the cost of maintenance.

Since the size of the structure or work may affect the ease of treatment, it also affects the price of galvanizing. Unfortunately, it is not yet possible to establish the cost of galvanizing according to universal standards, but the same is true for other surface treatment systems.  

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