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The Process "Simply Four"

There are four steps in Hot-Dip Galvanizing process and we call it as the "Simply Four" process.  To achieve an optimal coating result, practicing the following process is essential:

  1. Preparation

  2. Pickling & Fluxing

  3. Hot-Dip Galvanizing

  4. Quality Inspection

Galvanized Steel Pipe

Preparation

When products arrive at our facility, they are inspected for drainage, venting, as well as other designs requirements to ensure that they meet our requirement standards.  Adopting the proper design practices ensure optimum quality galvanizing, minimum cost and faster delivery.  

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Pickling & Fluxing

During pickling, products are immersed in a dilute solution of hot sulfuric acid to thoroughly remove surface rust and scale. ​

 

Fluxing creates a protective barrier to prevent the steel from oxidizing before taking a zinc bath, while simultaneously facilitates the metallurgy reaction between zinc and steel. In addition, ​it also removes any oxides that may have developed at the pickling stage

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Hot-Dip Galvanizing

The product is dipped into the molten zinc bath at a temperature of approximately 450° Celsius whereby the zinc reacts with the iron in the steel to form a series of metallurgically bonded zinc-iron intermetallic alloy layers

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Quality Inspection

Coating thickness is measured accurately with electronic gauges to comply with the standard specification.  Coating quality is also both visually and physically inspected.

© PT Lazuardi Rukun Perkasa, 2021. Created by L A H

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