Galvanic and heat on metals and alloys

Surface and galvanic treatments

Galvanic treatments, which take place through an electrolytic process, are finishing processes that allow a metal element to be covered with another metal, in order to make it more resistant to corrosion. Examples in this sense are copper with silver or steel with zinc.

Galvanic treatments also allow to work on the aesthetics of the parts subjected to this process.

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Types of Treatments

Nickel plating

Cover with a layer of Nickel to increase mechanical and corrosion resistance

Chromium plating

It is performed on a layer of Nickel. It can be shiny or matt and is intended to protect the metal from corrosion.


Metal cleaning treatment in preparation for subsequent painting. It occurs through erosion of a surface layer.


It consists in the application of a layer of zinc as protection from oxidation.

Vibro shot peening

It makes the metal surface smooth, shiny and homogeneous. The raw component is placed inside a machine and rubbed with steel balls.

Copper plating

Covering treatment of the surface with copper, with the aim of increasing the life of subsequently nickel and chrome plated elements.


Treatment that protects the metal surface from corrosion caused by atmospheric agents or pH variations


The metal is covered with a layer of tin to increase its protection against atmospheric agents

Heat treatments

Heat treatments improve the quality of metals, thanks to the change of the characteristics of their internal structure. We perform heat treatments on aluminium, steel, copper, brass and bronze.

What is a heat treatment

It is a process that allows the microstructure of a metal to be altered by exploiting multiple thermal cycles (heating, holding and cooling) with the aim of enhancing its future use in any sector. The metal component will generally be more resistant to high temperatures, hard and ductile, thus avoiding its deterioration over time.

Type of Thermal Treatments

The heat treatments are divided according to the set temperature. The heat treatments with temperatures above the critical point of the metal are:

  • Full annealing
  • Isothermal Annealing
  • Normalization
  • Hardening

Treatments with temperatures below the critical range are:

  • Soft annealing or improvement of workability Stress relieving
  • Tempering
  • Stabilization
  • Heat treatments available

Heat treatments available

Full annealing

Completely cancels all effects of previous treatments, including work hardening and alterations of the existing microstructure

Soft annealing

Heating treatment of the metal below the melting temperature which softens the piece and eliminates residual stresses


Particular type of annealing performed at 70°C which refines the crystalline grain of the steel and uniforms the microstructure


It causes a slight decrease in the internal tensions of the metal. It is the first stage of annealing.

Quenching and tempering

The sum of the two treatments eliminates martensite. The treated metal acquires a fine grain structure and characteristics suitable for subsequent use.


Treatment similar to quenching: the metal is heated and cooled at a controlled temperature, reducing the negative effects of quenching.


Quenching is achieved by heating and cooling the metal suddenly. The treatment increases hardness and resistance. Decreases resilience.


The metal is brought to a temperature of -196°C using liquid nitrogen. In this way the metastable austenite is
transformed into martensite.


We offer you the feasibility study and the identification of the most suitable production process, ensuring very high quality of materials and excellent quality/price ratio.

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