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Cordierite Kiln Shelves Refractory Kiln Furniture Yellow Color 500 * 500 * 15mm
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Brand Name:KAMTAI
Model Number:KTRKF18
Certification:ISO
Price:Negotiable
Payment Terms:T/T, L/C, Western Union, MoneyGram,Paypal
Supply Ability:3000PCS/MONTH
Delivery Time:25 DAYS AFTER PAYMENT
Company Data
Verified Supplier
Contact Person
Bruce
Business Type:
Manufacturer
Officials:
Dagang Village,Dingshu Town, Yixing City,Jiangsu Province, China
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
Refractory kiln furniture Cordierite kiln shelf use for tunnel kiln
1. Details
Cordierite ceramics are well known for their low thermal expansion
and refractory character. Although cordierite is available as a
powder, when we use the term we are generally talking about ceramic
that went into the kiln as ordinary composite of ceramic powders
but emerges as a cordierite crystalline matrix (grown by the firing
process tuned to its needs).
Cordierite makes the ceramic manufacture of products like catalytic converters possible. They constantly heat up and cool down quickly and must not crack because of the shock. These converters get their thermal shock resistance properties from a bonded matrix of low-expansion cordierite crystals. These crystals form during firing between 1300 to 1400C (interestingly, cordierite crystals have a lesser thermal expansion along one axis than another). Thus, the better the density of the precursor mix and controlled the firing the better the properties of the cordierite material are.
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.
Cordierite makes the ceramic manufacture of products like catalytic converters possible. They constantly heat up and cool down quickly and must not crack because of the shock. These converters get their thermal shock resistance properties from a bonded matrix of low-expansion cordierite crystals. These crystals form during firing between 1300 to 1400C (interestingly, cordierite crystals have a lesser thermal expansion along one axis than another). Thus, the better the density of the precursor mix and controlled the firing the better the properties of the cordierite material are.
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.
As noted, a continuous crystal matrix is the object of cordierite creation (not just the presence of the crystals in an otherwise typical ceramic). Notwithstanding this, cordierite powder is available, it is prefired and finely ground. It can be plasticied for forming and bonded during firing (at much lower than normal cordierite creation temperatures) to produce a ceramic that certainly has lower expansion.
As noted, a continuous crystal matrix is the object of cordierite creation (not just the presence of the crystals in an otherwise typical ceramic). Notwithstanding this, cordierite powder is available, it is prefired and finely ground. It can be plasticied for forming and bonded during firing (at much lower than normal cordierite creation temperatures) to produce a ceramic that certainly has lower expansion.
2. Product Technical parameter
| Item | Unit | Index |
| Al2O3 | % | 50 |
| SiO2 | % | 40 |
| MgO | % | 5 |
| Fe2O3 | % | ＜1 |
| Cao | % | ＜2 |
| Other | % | ＜2 |
| Max. Service Temp. | ℃ | 1300 |
| Refractoriness≥ | ℃ | 1420 |
| M.O.R at 20 ℃ | Mpa | 18 |
| M.O.R at 1250℃ | Mpa | 17 |
| Apparent Porosity | % | 20-28 |
| Specific heat at 20℃ | Kg/kg.k | 1.1 |
| Bulk Density | g/cm3 | 2.0-2.2 |
3. Package
We use Packed in wooden cases with plastic foam., there is no need to do fumigation, it is very strong and eco-friendly material for package.
4. Application
Cordierite kiln furniture is widely used in santary ceramic, pottery , porcelain insulator and so on.
Commonly customer use it under 1280℃.
5. Our service
We can reply within 8 hours, if we are not online, you can also send email to us, we will get back to you after we are back. Sometimes we are on business travel, so it takes time.
Company Profile
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.
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