Alumina Sagger
Product Information
Saggar is a kiln furniture. Initially, in the process of firing porcelain, in order to prevent gas and harmful substances from damaging and defacing the body and glaze, porcelain and blank bodies are placed in containers made of refractory materials for roasting, which is the saggar. It is made of refractory mud of various specifications of the round bowl or cuboid, by high temperature roasting. All kinds of porcelain billets must be first loaded into the saggar, and then into the kiln for roasting. The use of saggar firing ceramics, not only can improve the number of loading, products will not bond, improve the yield, and the saggar also has a certain thermal conductivity and thermal stability, can ensure the quality of ceramics.
The main materials of saggers are cordierite-mullite, mullite, corundum-mullite, alumina, fused quartz or a composite of these materials.
The main molding methods are semi-dry pressing, plastic rolling, hot pressing and pressure grouting.
According to the classification rules of ROBERT products, saggers are divided into round saggers, square saggers, special saggers and other small categories.
Features
1. High temperature resistance: Corundum mullite saggars can withstand extreme temperatures without melting or deforming, ensuring the stability of the enclosed items during the firing process.
2. Chemical inertness: These saggars exhibit excellent resistance to chemical reactions, ensuring that the materials being processed remain unaffected by the surrounding environment.
3. Thermal shock resistance: They have good thermal shock resistance, preventing cracking or damage when subjected to rapid temperature changes.
Details Images
Product Index
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Property
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Cordierite-mullite
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Mullite-corundum
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|
Mgo %
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3-6
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-
|
|
Al2O3 %
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40-45
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≥80
|
|
SiO2 %
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≥46
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≤18
|
|
Fe2O3 %
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≤0.03
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≤0.03
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|
Density (g/cm3)
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≥2.2
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≥2.7
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|
Apparent Porosity
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≤20
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≤22
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Cold Crushing Strength(MPa)
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-
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≥80
|
|
Thermal Stability(1100℃ Water Cooling)
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≥60
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≥30
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Application
Saggers are Container kiln furniture that used to load shaped products and powdered non-shaped materials. When used to load shaped products, they mainly protect the products from pollution, support or shape the products, such as glaze firing of high-end daily-use ceramics, shaping of bone ash porcelain products, loading of electronic ceramics, etc.; when used to hold powdered materials, the powder can be heated to produce decomposition, chemical reaction, or melting, such as calcination of lithium battery powder, calcination of high-purity hydroxides, calcination of rare earths, gold prospecting melts, precision alloy casting melts, etc.
Package&Warehouse
Company Profile
Shandong Robert New Material Co., Ltd. is located in Zibo City, Shandong Province, China, which is a refractory material production base. We are a modern enterprise that integrates the research and development, production, sales, kiln design and construction, technology, and export refractory materials. We have complete equipment, advanced technology, strong technical strength, excellent product quality, and good reputation. Our factory covers over 200 acres and an annual output of shaped refractory materials is approximately 30000 tons and unshaped refractory materials is 12000 tons.
Our main products of refractory materials include: alkaline refractory materials; aluminum silicon refractory materials; unshaped refractory materials; insulation thermal refractory materials; special refractory materials; functional refractory materials for continuous casting systems.
Frequently Asked Questions
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We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.
For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
Of course, we provide free samples.
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There is no limit, we can provide the best suggestion and solution according to your situation.
We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.
