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Why is Zinc Used?

Published in Zinc Applications 2 mins read

Zinc is used for a variety of applications, primarily due to its protective properties and versatility in manufacturing.

Galvanization: Protecting Against Rust

A major reason zinc is used is to galvanise other metals, such as iron, to prevent rusting. This process involves coating the metal with a thin layer of zinc, which acts as a barrier against corrosion. When the zinc layer is scratched, it still protects the underlying metal through a process called sacrificial protection. The zinc corrodes first, preventing the iron from rusting.

Applications of Galvanized Steel:

Galvanized steel is crucial in numerous industries and applications, including:

  • Car bodies: Protecting vehicles from rust and corrosion.
  • Street lamp posts: Ensuring durability and longevity in outdoor environments.
  • Safety barriers: Providing robust protection on roads and highways.
  • Suspension bridges: Maintaining structural integrity in challenging conditions.

Die-Castings: Manufacturing Durable Components

Zinc is also used in large quantities to produce die-castings. These are precisely shaped metal parts created by injecting molten zinc alloy into a mold.

Significance of Zinc Die-Castings:

Zinc die-castings are important in various sectors, notably:

  • Automobile industry: Manufacturing components such as handles, carburetors, and fuel pumps.
  • Electrical industry: Producing housings and connectors for electrical equipment.
  • Hardware industry: Creating items like locks, door handles, and tools.
Property Benefit
Corrosion Resistance Protects underlying metals from rusting and degradation
Die-Casting Ability Allows for the creation of intricate and durable components
Versatility Used across numerous industries, including automotive, electrical, and hardware