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.
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However, another problem encountered in glass industry is contamination by refractory’ material that fall into the molten glass, which can produce a series of defects in the final product.
Properties and applications of fused cast AZS
Mainly used in glass furnaces, they can withstand aggressive conditions in contact with molten glass. The furnace is also used to heat up billets extruded the brass into the right form and size. Reference Number Reference Number.
Typical applications are superstructures, skew blocks, wall bricks and upper-checker in regenerators, paving, sub-paving, and forehearth blocks in float glass furnaces. It is the most widely used in the products of glass furnace, the upper part of the structure is mainly applicable to the molten pool, pool wall refractorg and tile work pool, material etc.
The method of claim 21 wherein the refractory composition does not include an effective amount of a hydraulic cement. Publication Year Publication Year. Other proportions of the first set of components may be used.
The refractory composition may be formed directly on the wear portion without the replacement of refractory blocks revractory a glass melting furnace. The composition of Example 1 showed superior performance to the composition of Comparative Example B, especially at the bath line. The refractory composition has been found refradtory provide excellent corrosion resistance.
Citation Export Print Permalink Translate. Glass melting furnaces include pot furnaces, glass tanks, tank furnaces, and the like.
To 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. This product is only available for straight brick. Dense microstructure of Fused Cast AZS 33 bricks to glass corrosion resistant performance is good, not easy to produce slag and other defects in glass kiln.
The pencil prepared from the formula of Comparative Example A lost an average of The alumina, zirconia, and silica provide strength and corrosion resistance. The results obtained indicate that the composition with low content of ZrO 2 can provide better properties than the commercial product, with some modifications in the particle size distribution.
Instead, the first set of components includes particles selected from alumina, zircon, silica, mullite, and the like. The refractory blocks can become deeply scored and may develop wear spots or portions where the molten glass has eroded or dissolved the refractory.
The refractory composition disclosed herein may also be used in other types of furnaces, such as brass furnaces.
Cold Crushing Strength MPa. Fused-cast-alumina-zirconia-silica refractory, methods of making it and glass melting furnace employing it. Refractoriness under Load T0. Ceramics, ceramic blank, manufacturing refractody thereof, sanitary earthenware and manufacturing method thereof.
The colloidal silica binder holds or binds the first set of components together in a monolithic form. The refractory composition may be formed on one or more portions of the sidewall or hearth. Montreal, Canadaand other conventional suppliers. The refractory composition includes a first set of components mixed with a colloidal silica binder.
Therefore, selected key parts of the glass refrcatory, so that these parts of the life and the other part of the lower scale. In another aspect, a method of preparing a refractory includes providing refracgory first set of components and a colloidal silica binder.
The refractory composition of claim 1 wherein the refractory composition is formed on at least one wear portion of a brass furnace. Proper particle provides good particle packing for reduced porosity, which leads to greater strength and less glass penetration in the rffractory.
Preparation and properties of glass-ceramics from kaolin clay refining waste Kira and paper sludge ash. For each Example, the first set of components was mixed together prior to mixing with the colloidal silica binder.
This research was conducted to develop new formulations of AZS refractories with different amounts of ZrO 2 with the purpose of improving the characteristics, properties and the work conditions in the glass melting furnaces and, at the same time, lower the costs this type of refractories.
Article made from refractory material for contact with a liquid metal or alloy, a method for manufacture, use and method of use of same.
Green member for the manufacture of a sintered refractory product having improved bubble generating behavior. Besides glass furnaces, the refractory composition may be used in brass, copper, and bronze furnaces.
Silicon carbide crusting resistant pouring material and preparation method thereof. After the test, the samples were analyzed to determine the resistance of the refractory composition to the harsh conditions.
The fingers were dipped into molten glass at a high temperature. More particularly, this invention relates to colloidal silica refractories for the lining of furnaces, such as glass and brass furnaces.
Fused Cast AZS Refractories ~ LONTTO Refractory
The colloidal silica refractory provides surprisingly good resistance to high temperature corrosive environments. The refractory composition may be formed on refractoyr wear portion using one or more refractory forming methods such as casting, pumping, or shotcreting formless pumping with a setting accelerant.
The first set of components includes alumina and zirconia. The refractory composition of claim 1 wherein the refractory composition is formed on at least one wear portion of a glass melting furnace. CA CAC en