
Refractory Cordierite slab 390*370*15mm for porcelain tableware
1. Introduction
Cordierite has excellent thermal shock resistance, good strength
and can be formed by pressing, extruding, casting and vibrating
into complex shapes. Cordierite mullite kiln furniture is widely
used in porcelain, heavy clay, glass panel, powder metallurgy,
magnetic materials, green energy, food, glass, abrasives, iron and
steel, mining and aerospace engineering.
Besides its use as kiln furniture, it is also extensively used in
kiln structures and kiln car system, where it is combined with
ceramic fiber to achieve the aims of improving fuel efficiency and
avoiding contamination.
The ideal chemistry to produce the crystals is 13.8% MgO, 34.8% Al2O3 and 51.4% SiO2 (2MgO, 2Al2O3, 5SiO2). Talc, kaolin and raw alumina powder can be blended to produce
this chemistry (other materials are also used e.g. aluminum
hydroxide, steatite and other MgO minerals). Compound materials
(like kaolin and talc) react better than pure oxide materials (like
MgO, Al2O3, SiO2). Materials of finer particle size react better.
A simple firing to 1300C (about cone 11 and within the reach of
many ordinary kilns) and soaked may produce some crystal
development. However firing (actually sintering) at 1400C+ with
significant soaking time is needed for the best results. Thermal
expansion measuring equipment is needed to determine if your firing
is actually developing the crystal matrix or not.
2. Technical Parameter
Item and Descriptions | Specifications Offered | ||
Al2O3 (%) | 40~48 | ||
SiO2 (%) | 45~48 | ||
MgO (%) | 5~8 | ||
MOR(MPa) | 20℃ | 14 | |
1250℃ | 12 | ||
Bulk Density(g/cm3) | 2.0 | ||
Open Porosity(%) | 28 | ||
Phase composition(%) | Mullite | 55 | |
Cordierite | 30 | ||
Max. Service temperature ℃ | 1280 |
3. Application
Cordierite slab is widely used to sinter pottery , ceramic insulator and so on.Using temperature can not be over 1300 ℃
We can also supply SiSic beam.
Yixing City Kam Tai Refractories Co.,ltd
Yixing City Kam Tai Refractories Co.,ltd is located in Yixing, the
Pottery capital of China. Our company is founded in 2006, it is a
professional refractory and ceramic company which cover research,
production, sales and after-sales service. Since establishment, we
adhere to principle of “Technological Innovation, Never Stop”,
continuously improve R&D and production process and equipment.
Moreover, we cooperate with famous university such like Liaoning
University of Science and Technology, Beijing University of Science
and Technology.
Main Products
We mainly manufacture industry furnace refractory material such as
Sic PLATE,Setter plate, Push plate, Pillar,Sagger, Technical
Ceramic, Furnace material and so on. Our product is widely used to
sinter Magnetic Material, Electronic Ceramic, Daily Ceramic, Powder
Metallurgy, Rare Earth Battery Material and so on. Our sandwich
setter plate, electronic ceramic used sagger, Lithium battery
cathode material sintering sagger are very good , and they have
been leader products in our field .
Company Vision
Since our establishment, we insist on “No best , Just Better” , aimed to be the top Supplier of Refractory material and Technical Ceramic in the world.