MIM pieces of commonly used surface
treatment process? Follow the ZCMIM metal injection molding process
manufacturers to learn about it!
Polishing process
To reduce the surface roughness of the
workpiece by using mechanical, chemical or electrochemical processes to obtain
a bright and smooth surface.
Plating treatment
Process for attaching a metal or other
material to a metal film on the surface of a metal or other material.
Electroplating can play a role in preventing metal oxidation (such as
corrosion), improve wear resistance, conductivity, reflective, corrosion
resistance (such as copper sulfate, etc.) and enhance the role of beauty and so
on.
PVD treatment
Using the physical process to realize the
material transfer, the atom or molecule is transferred from the source to the
surface of the substrate. Its function is to make some special properties (such
as high strength, wear resistance, heat resistance, corrosion resistance, etc.)
particles sprayed on the lower performance of the matrix, making the matrix has
better performance.
Blackening
The metal surface to produce a layer of
oxide film, to isolate the air, to achieve the purpose of rust, is a chemical
treatment is very common. The appearance of requirements is not high by
blackening, the main component of blackening is sodium hydroxide and sodium
nitrite.
Phosphating treatment
Is a kind of chemical and electrochemical
reaction to form the phosphate film process. The purpose of phosphate is
mainly:
1) to provide protection to the base metal,
to a certain extent, to prevent corrosion of metal;
2) for painting before bottoming, improve
the paint film adhesion and corrosion resistance.
Spray treatment
Through the gun or disc type atomizer, with
pressure or centrifugal force and disperse into uniform and fine droplets,
applying to be painted surface coating method.
In short:
1) polishing, phosphating is mainly
pretreatment, preparation for the rest of the treatment;
2) electroplating, PVD is the application
of more two kinds of processing technology;
3) and black spray would have great changes
on the surface of the products, more suitable for large workpiece.
