Shamima Hossain & Md Rasel Mia World University of Bangladesh Dhanmondi, Dhaka

1. Welcome To The
Presentation on
“Manufacturing Process
of
Standard Ceramic Tiles”

2. Presented by
Shamima Hossain
Roll- 1983
Md. Rasel Mia
Roll- 1984
Presented to
Mrinmoy Mitra
Lecturer
Department of Business
Administration
World University of Bangladesh
World University of Bangladesh

3. Location facilities of Standard Ceramic
The factory locating in Gazipur,
only 30 KM distance from
capital city of Dhaka.
Therefore they get following
facilities-
1. Available of labors
2. Easy for transportation and
communication
3. Low cost delivery

4. Manufacturing System of Standard
Ceramic
Standard ceramic follow the
lean manufacturing
system. Which means
their main aim is to-
• Reducing Waste
• Reducing cost
• Continuous Improvement
of product quality.

5. Production Process of Standard Ceramic
Tiles
Raw
material
Weighing
Ball Milling
Vibrating Screen
and Homo Tank
Spray DryerDry Pressing
Glazing
Coloring &
Designing
Firing process
Finishing
Shorting and Packaging

6. Raw Materials for Ceramic Tiles
Clay
Talc
The traditional ceramics industry is largely based on
various combinations of clay minerals, feldspar and
silica.
The mineral raw materials used in the ceramic industry
are mainly inorganic, nonmetallic, crystalline solids
formed by complex geologic processes.
Clays have the ability to form clay-water composition
and to maintain their shape and strength during drying
and firing
Silica

7. Preparation of Powder
Raw Materials
Continuous Ball Mill
Slip Tank
Service Tanks
Spray Drier

8. Preparation of Powder (Continuous ball mills)
The mixing of raw materials takes place with the
help of alumina pebbles.
This ball mill continuously rotates.
This rotation helps the pebbles to grind the raw
materials.
The grinded raw materials are mixed with water to
obtain slurry

9. Preparation of Powder (Service Tanks & Slip tanks)
Service Tanks
The service tank rotates continuously so
that it won’t allow highly viscous slurry to set.
In the vibration chamber filtration of sand
and stone takes place with the help of huge
vibrators.
The slurry free from sand and stone enters
into slip tank.
SLIP TANK
The Slurry in the slip tank is continuously
rotated in order to prevent setting of slurry as
it is highly viscous.

10. Preparation of Powder (Spray Dryer)
The slip flows from tanks to spray
nozzles and the slip is sprayed in the
upward direction from the nozzles.
Slip sprays in the downward
direction and hot air will pass upwards.
The temperature in the spray drier is
maintained at 720 degree C.
The moisture content is around (4.5-
5.5%)

11. Shaping Process (Dry Pressing)
Dry Pressing
Pow
deris
deposited
into
a
tray
and
hydraulically
pressed.Bidderand
lubricants
added
keep
to
the
m
old

12. Glazing Process
Glazing
Glazing is a layer or
coating of
a vitreous substance
which has been fired to
fuse to a ceramic object to
Color
Decorate
strengthen or waterproof
it.

13. Colouring & Designing
World University of Bangladesh
Coloring & Designing
To form required size of tiles,
the floor tiles are colored and
designed using silk screening
(located in the printing
machine), and then stored in
transfer cars for a while before
firing.

14. Firing Process
The firing process is to harden the tiles.
These tiles are heated in a roller kiln for
about 40-45 minutes, depending on the
size and type of the tiles. As a general
rule, the more color and design involved,
the longer the tiles are heated.
Typical firing temperatures for alumina,
mullite, and zirconia reach 2850 °F - 3100
°F.
Typical firing cycles can range from 12 -
120 hours depending upon the kiln type
and product.
Ceramics shrink approximately 20%
during the sintering process.

15. Finishing
Parts made of ceramics
sometimes require finishing.
In general, these operations
have of the following
purposes, to-
(1) Increase dimensional accuracy
(2) Improve surface finish

16. Shorting
The tiles are sorted by
sorting machines to
separate the good tiles
from the defective ones.
The company also uses
computerized machine
to ensure the exact size
of tiles.

17. Packaging
The final process is
where tiles are packed
according to the
specific size and
quality, stored in a
warehouse as finished
goods ready for sale

18. US