Introduction:
Ceramic rollers are hi-tech advanced ceramic products made with
patented cool isostatic pressing technique and over 50 years of
professional manufacturing experience.
Ceramic rollers are widely used in roller kilns for firing wall
tile, floor tile, table ware, sitall tile, magnetic materials and
electronic ceramic, etc.
User guide:
1. The strippable protective
coating for ceramic rollers are composed of ground coating and over
coating. Before painting, mix the ground coating and over coating
to homogeneous slurry respectively, and the mixture of these two
kinds of coating is strictly forbidden.
2. Clean up the surface of the
roller first, then spread the ground coating onto the roller. The
thickness must be controlled within 0.2-0.3mm (using method of
painting or marinating or pouring just once). Let the ground
coating dry naturally for more than half an hour, then spread the
over coating( within 0.8-1.2 mm, using method of painting or
marinating or pouring two or three times normally.) While actually
operating, the ground coating should be spread on a batch of
rollers, then the over coating.
3. After drying naturally, the
rollers should be laid beside or on the kiln for full day.
4. When changing the rollers,
put the dried rollers with coatings directly into high temperature
zone (>1000℃). To avoid exfoliating of the coatings
5. After rollers are fired for
a period, the over coating should have been stained with glaze
droplets, and the surface cleaning of the rollers is needed. and
launch into the newly applying.
6. Within 950-1300℃, the
coatings act a good protection.
7. Do not preheat the rollers
in low temperature zone before inserting it into high temperature
zone.
8. During cleaning up, the over
coating can be stripped to fragments easily by a slight knock.
Technical parameters:
Characteristics | Items | Types |
VS-2000 | S-2000 | S-4000 | S-6000 |
Physical properties | Bulk density（g/cm3） | ≥2.4 | ≥2.4 | ≥2.6 | ≥2.8 |
Apparent porosity（%） | 20-23 | 20-25 | 15-20 | 10-15 |
Water absorption（%） | 8-10 | 8-12 | 7-10 | 4-7 |
Bending strength （25℃/1350℃Mpa） | >55/35 | >50/30 | >60/50 | >70/60 |
Thermal expansion coefficient （*10(-6)/(25~1000℃) | 5.8-6.0 | 5.8-6.2 | 5.8-6.2 | 5.8-6.0 |
Thermal shock resistance（1300~25℃） | Good | Very good | Very good | Good |
Working Temp | ≤1200 | ≤1230 | ≤1300 | ≤1350 |
Composition | Al2O3(5) | 74-76 | 74-76 | 72-74 | 78-80 |
SiO2(%) | 20-22 | 20-22 | 19-21 | 14-16 |
Fe2O3(%) | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.2 |
Reference loading | 50*3800mm | 5.0 （1200℃） | 4.5 （1230℃） | 6.0 （1300℃） | 7.5 （1350℃） |
Application | Glazed tile | | | | |
Glazed floor tile | | | | |
Porcelain tile | | | | |
Household ceramic | | | | |
Magnetic ceramics | | | | |
Electronic ceramic | | | | |
