Galvanochrome - Revestimentos a Cromoduro Unip., Lda
 
REVESTIMENTOS A CROMODURO, UNIP. LDA.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

SERVICES

 
 
 

SERVICES

 
There are 7 types of chrome plating application, that faithfully reproduce the surface conditions of the parts
 
 
 

PROTECTIVE HARD CHROME PLATING

 
 
 
 
 
This process is used when the objective is to only protect against corrosion or wear, without compliance with tolerances. Each coating is determined according to the intended purpose and the thickness varies between 5-15 µm.
 
 
 
 
 
 
 
 
 

HARDCHROME PLATING BY MEASURE

 
 
 
 
 
 
 
 
 
 
 
 
As the name implies, the hardchrome layer is deposited with a uniform thickness on the workpiece surface fulfilling the tolerance values and allowing its assembly without mechanical finishes. The hardchrome plating by measure avoids further thinning, making this a preferrable process.
 
 
 
 

THICK HARD CHROMING

 


Applied mainly in parts subsequently subjected to mechanical finishes.

The chromium plating is deposited with a thickness greater than the desired values and corrected according to the customer's request. (E.g. cylinders, shafts, rods)
 
 
 
 
 
 
 
 
 
 
 

MATTE HARD CHROME PLATING

 
 
 
 
 
In this case, the pieces are textured before the hard chrome plating. The surface texture can be more or less crafted according to the need.
This type of hard chroming is applied conditionally, since the texture structure originates from the formation of a base texture in the surface.
 
 
 
 
 
 
 
 
 

DOUBLE HARD CHROMING

 
This type of hard chrome plating is mainly applied in parts subjected to high temperatures and deformation during the labour process, eliminating considerably the possibility of forming cracks that occur easily due to the high coefficient of dilation of the base material when subjected to high temperatures.

This method confers high resistance to corrosion and these characteristics are acquired through the application of two layers of differentiated hard chromium.
 
 
 
 
 
 
 
 
 

RESTORATION OF HARDCHROME

 
In the case of the restoration of hardchrome, it is the renewal of worn hard chromium layers, in order to clearly prolong the durability of the parts. The parts are restored, respecting exactly the same characteristics of the coating and returning them their original state.
 
 
 
 
 
 

LOCALISED HARD CHROMING

 
It applies in situations where an anomaly is found in a part of the hard chromed piece and avoids having to renew all the existing chroming, effecting the treatment only in the localized zone, thus generating value with the reduction of costs to the customer.

Other complementary services with regard to surface treatment of hard chromium:

Glass Microsphere jet;
Construction of suspensions coated with Plastisol;
Surface polishing;
External grinding (up to 1750mm between dots and 400mm in diameter);
Internal grinding (up to 400mm and 350mm in diameter);
Flat rectification (1500x500mm).