There are significant differences between multicomponent alloying and galvanizing layers in many aspects, which are mainly reflected in technical principles, performance characteristics, application fields and technological processes.

First, technical principles

• Galvanizing : Galvanizing is a surface treatment method that covers a layer of zinc by immersing metal parts in molten zinc. This layer of zinc can be formed by hot-dip galvanizing or electrogalvanizing. In the process of hot dip galvanizing, the steel workpiece is immersed in the molten zinc liquid, the zinc liquid reacts with the iron to form a zinc-iron alloy layer, that is, the galvanizing layer.

Second, performance characteristics

• Multi-component alloying :
  • Significantly improve the hardness, wear resistance and corrosion resistance of the metal surface.
  • The alloy layer is firmly combined with the matrix and is not easy to flake off.
  • It can protect the base material in harsh environment and extend the service life of the workpiece.
• Galvanized layer :
  • Provides sacrificial anode protection, i.e. zinc is more easily oxidized than iron, so zinc is corroded first in a corrosive environment, thus protecting the base material.
  • Galvanized metal has good corrosion resistance, suitable for outdoor buildings, Bridges and highways and other structures.
  • The thickness of galvanized layer determines the corrosion resistance of the plating, but too thick coating may affect the binding force of the coating and the substrate and the appearance quality of the coating.

3. Application fields

• Multi-component alloying : More suitable for specific tools and mechanical parts requiring high hardness and wear resistance, such as tool steel, bearing steel, gear, etc.
• Galvanized layer : widely used in a variety of metal structural parts anti-corrosion protection, such as outdoor buildings, Bridges, highway guardrail, auto parts and so on.

Fourth, the process

• Multi-component alloying : usually includes pre-treatment (cleaning, degreasing, rust removal, etc.), co-osmosis (placing the workpiece in a molten salt bath for heating or vacuum treatment), post-treatment (cooling, cleaning, grinding, etc.) and other steps.
• Galvanized layer : mainly includes pre-treatment (such as pickling, plating aid, etc.), hot dip galvanizing (the workpiece is immersed in molten zinc solution), cooling and subsequent treatment (such as passivation, oiling, etc.) and other steps.

In summary, there are obvious differences between multicomponent alloying and galvanizing layers in technical principles, performance characteristics, application fields and technological processes. When selecting a surface treatment method, it is necessary to determine the most appropriate technology according to the specific application requirements and environmental conditions.