Fused Cast AZS block is also called electro Zircon corundum block, which is abbreviated as AZS because it contains Al2O3－ZrO2－SiO2. Alumina-zirconia-silica (AZS) fused-cast refractories began to increase in popularity in glass furnace applications for the glass contact and. fused Cast AZS refractories are the most widely used materials both in glass contact and superstructure of glass melting products are made of.
|Published (Last):||15 June 2010|
|PDF File Size:||9.93 Mb|
|ePub File Size:||19.66 Mb|
|Price:||Free* [*Free Regsitration Required]|
Rebonded Fused Mullite bricks MFZ-6 are used as pure-oxygen burner blocks in alkali-free glass furnaces, crown blocks and arch blocks in ceramic frit furnaces, and areas of high temperature and high thermal stress in other industrial furnaces.
Call to order AZS Bricks, Zirconia Bricks, Zircon Mullite Bricks, and other refractory bricks, and our fast, responsive customer service and reliable delivery service will save you time and money! Besides glass furnaces, the refractory composition may be used in brass, copper, and bronze furnaces. Each aspect so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary.
After the test, the samples were cooled and analyzed to determine the resistance of the refractory composition to the harsh conditions. Instead, the first set of components includes particles selected from alumina, zircon, silica, mullite, and the like.
In one embodiment, the refractory composition does not include an effective amount of any other type of binder, such as a hydraulic cement binder. Therefore, selected key parts of the glass furnace, so that these parts of the life and the other part of the lower scale.
The furnace was operated for a period of time and the composition was found to perform well throughout the furnace.
The first set of components may include other compounds such as a setting agent. The mechanical pressure from the frame and outer blocks holds the blocks together.
In particular, the refractory composition includes alumina, zirconia, and silica. The pencil prepared from the formula of Example 1 lost only an average of Cold Crushing Strength MPa. It is the most widely used in the products of glass furnace, the upper part of the structure is mainly wzs to the molten pool, pool wall brick and tile work pool, material etc. It is known that particle size effects the properties of the liquid refractory compositions such as pumpabilityas well as the mechanical and chemical properties of the final refractory.
The first set of components may contain no silica. Process for making a high temperature-resistant ceramic material with an adjustable thermal expansion coefficient and method of use of same. In one aspect, this invention provides a refractory refractoey especially useful for furnaces.
Aza simulate the harsh conditions in a glass melting furnace, refractory corrosion tests were performed on the colloidal silica refractories to evaluate their resistance to molten glass.
To simulate the harsh conditions in a glass melting furnace, refractory corrosion tests were performed to evaluate resistance to sodium hexametaphosphate. The alumina, zirconia, and silica provide strength and corrosion resistance. The refractory composition may be formed directly on the wear portion without the replacement of refractory blocks in a glass melting furnace.
The refractory blocks can become refrachory scored and may develop wear spots or portions where the molten glass has eroded or dissolved the refractory. Fused cast AZS36 brick due to the increase in chain like zirconia more crystals, and glass phase content is relatively low, so the 36 fused zirconia corundum brick corrosion resistance has been further enhanced. Unwrought refractory composition, in particular for producing glass furnace hearths.
The cross sectional area of the pencil lost during the test was measured and the results were averaged. Refractory materials that include cement tend to be difficult to dry when setting, especially at lower temperatures.
US20080314085A1 – AZS refractory composition – Google Patents
The silica may be provided by fumed silica, mullite aluminum silicatemicrosilica, colloidal silica, or the like.
A refractory composition comprising: Article made from refractory material for contact with a liquid metal or alloy, a method for manufacture, use and method of use of same. The refractory composition is formed on the surface of a furnace. Reading, OhioAlcan, Inc.
Properties and applications of fused cast AZS – Refractory Materials in Glass Industry
Ceramic powder rwfractory and optoelectronic device substrates utilizing the same. The various components are available from AluChem, Inc.
High temperature resistant, highly loadable, fine ceramic, sintered construction material, process for its production, and a component made of a ceramic material.
The furnace is also used to heat up billets extruded the brass into the right form and size. The pencils were dipped into sodium hexametaphosphate at a high temperature. Commercial AZS alumina-zirconia-silica refractories are gefractory good alternative in refractory materials for the glass industry’ because they can support the aggressive conditions during liquid processing of glass.
Glass melting furnaces include pot furnaces, glass tanks, tank furnaces, and the like.