3. SAND BLASTING
• Sand blast cleaning, is a surface
treatment process widely used in a
variety of different industries with many
diverse purposes.
• Sand blasting is the process by which
an abrasive media is accelerated
through a blasting nozzle by means of
compressed air.
4. SAND BLASTING CLEANSING PROCESS
• As we are acquainted with different cleaning procedures adopted to
clean different surfaces. Sand blasting is one of such cleansing process
which makes the use of light particles as propellants to project it on the
required surface. It makes use of different abrasive materials as a part of
its cleaning procedure. This process is mainly preferred by the industries
and the construction firms to get rid of the unwanted particles from the
surface. It can be used to clean the surface, remove the paint, get rid of
the rusts, and etch the surface to provide a shinier look.
5. TOP USES OF SAND BLASTING
• Removal of rust spots from the metal is one of the
primary use of sand blasting.
• Paint removal from homes and commercial offices
is something else the sand blasting process can be
used for.
6. ADVANTAGES OF SAND BLASTING
• Quick removal of contaminants: This process helps in quick removal of the
deposits of the contaminants on different surfaces.
• Less machinery involved: This process does not make use of complex
machineries.
• Abrasive action: The materials which are used in the projection are highly
abrasive and have an aggressive action on the surfaces. •
• Fit for tough surfaces like concrete: The powerful action of the process can
remove deposits even from tough surfaces like concrete.
7. SAFETY PRECAUTIONS
• It is important to be aware of the necessary safety precautions that need to
be put into place before home or industrial sandblasting can take place.
Take note of the following:
• Wear safety goggles to protect your eyes;
• Make use of protective gloves;
• Ensure that you wear a mask to avoid inhaling the tiny particles of
debris;
• To avoid a big clean-up, wear old clothes oroveralls.
8. VACCUM BLASTING
• Vacuum blasting is an abrasive blasting
method, also referred to as dustless
blasting or closed loop abrasive blasting.
• The method is characterized by a blast
tool that does abrasive blasting and
collects both used blast media, and
loosened particles from the surface to be
treated, simultaneously.
9. PROCEDURE
• The blast tool is equipped with a blast hose and a suction hose, that
both run from the blast tool to a control unit.
• The control unit supplies the blast tool with pressurized air mixed with
blast media, and sucks back dust, loosened particles and used blast
media.
• The control unit continuously separates dust and loosened particles from
the used blast media, and sends used blast media back into the
pressurized air flow.
10. APPLICATIONS
• The method is typically used in areas where dust and spill
from regular abrasive blasting is not wanted, for example
due to HSE-considerations.
• The blast process itself is slower than regular abrasive
blasting, but requires less sheeting and scaffolding
11. ADVANTAGES
• A major advantage of vacuum blasting is that this dirt is
immediately collected with this technique.
• This saves a lot of mess and clean up after the blasting
process. The material that is collected is sorted and can
then be reused as blasting media.
12. FLAME CLEANING
• Flame cleaning, also
known as flame gouging,
is the process of cleaning a
structural steel surface by
passing an intensely hot
oxyacetylene flame over it.
