In modern industrial applications, precision
tube is widely used due to their high precision and excellent mechanical
properties. Seamless
pipe, as a common type of precision tubes, play an important role in many
fields. In order to further improve their performance and adapt to specific
working conditions, the inner and outer walls of precision tubes can be
subjected to a variety of special treatments. These treatments can not only
improve the service life and reliability of steel tubes, but also meet the
diverse needs of different industries for precision tubes.
Special treatment of inner wall
1. Cleaning
During the production process, the inner
wall of the steel tube may be attached with oil, rust or other impurities. To
ensure the cleanliness of the steel tube, a cleaning process is usually used to
remove these impurities.
2. Polishing
For precision tubes that require high
surface finish, the inner wall may be polished. Polishing can further improve
the inner surface quality of the steel tube, reduce roughness, and thus improve
the flow efficiency of the fluid in the pipeline.
3. Coating or plating
Depending on specific needs, the inner wall
may also be coated, plated or otherwise specially treated to improve the
corrosion resistance, wear resistance or other properties of the steel pipe.
Special treatment of outer wall
1. Polishing
Polishing is an important means to improve
the finish of the outer surface of the steel pipe. According to customer needs,
polishing can be divided into mechanical polishing, chemical polishing,
electrochemical polishing and other methods to achieve different levels of
bright surface. The surface of the polished steel pipe is smoother and more
beautiful, and also has certain corrosion resistance.
2. Deburring
During the production process of steel
pipes, defects such as burrs may occur. In order to ensure the surface quality
of the steel pipe, a deburring process is usually used for treatment. There are
many ways to deburr, such as using hand tools such as files and sandpaper, or
mechanical methods such as vibration, sandblasting, and rollers.
3. Pickling and passivation
For stainless steel precision tubes,
pickling and passivation treatment is usually performed to remove surface oxide
scale and improve corrosion resistance. Pickling can remove stains and
scratches on the surface, while passivation can form a dense passivation film
on the surface of the steel pipe, further improving its corrosion resistance.
4. Galvanizing or passivation
Galvanizing or passivation of the outer
wall of the steel pipe can significantly improve its anti-rust and
anti-corrosion properties. This treatment method is widely used in hydraulic
systems, the automotive industry, the railway locomotive industry and other
fields.
5. Surface coloring
In order to meet customers' needs for the
appearance color of the steel pipe, surface coloring may also be performed.
Modern stainless steel precision tubes are generally colored using
nano-spraying technology or vacuum plating technology, which not only have
little impact on the environment, but also do not affect the precision and
performance of the steel pipe.
Summary
In summary, the inner and outer walls of
the precision tube can be subjected to a variety of special treatments
according to specific needs to improve its performance, aesthetics and service
life. In practical applications, different types of precision tubes such as
seamless steel tube, mild
steel tube, carbon
steel pipe, etc. can be treated with these special treatments to meet the
needs of different uses. These special treatments are of great significance in
industrial production and can meet the diverse needs of precision tubes in
different fields.