An azs aluminum zirconia silicate product produced from clean recycled azs refractory for specialty applications. Fused cast azs corrosion is a more potent and longterm source of defects. Technical materials sells best quality high temperature materials such as azs refractories, ceramic brick, and graphite insulation materials for high temperature applications. The azs style glass tank is designed primarily for the glass artist who desires 400600800 lb. Fused cast azs has no open porosity but there are some closed voids and pores which arise from the manufacturing process. Monolithic refractories are refractory materials that are single piece troduced in japan by agc plibrico, leading to an epochmaking revolution in the refractory field. Refractory materials play useful and very crucial roles in the industrial development of any nation. Technical materials mission is simple but not easy. Sunrise is a refractory material supplier from china. Once emhart glass purchased the plant, the company closed its other refractory operations and. Acording to the different content of zirconia from 33%41%. It is widely applied to glass furnace for superstructure, working pool side wall, paving blocks, feeder channels, tank bottoms, cshaped block and doghouse crown,etc.
Fusion cast refractories the american ceramic society. Mar 17, 2017 all refractories are ceramics but not all ceramics are refractories. Fused azs grain refractory compositions suitable for making ceramically or chemically bonded refractory articles, and the articles so made, are disclosed. Azs refractories are widely used in glass furnaces. Fused cast aluminazirconiasilica azs ma terials are the preferred refractories for the furnace area in contact with the glass melt when melting. Performance evaluation of refractory bricks produced from. You have clicked a page that seems to be very popular. Freedonia europe north america others south america 20 2014.
Jun 26, 2015 fused cast azs corrosion is a more potent and longterm source of defects. As the pioneer of monolithic refractories, plibrico japan has since been engaged in the. Products specs zircon mullite brick mz20 zircon mullite brick mz30 bonded azs brick azs30a bond azs brick azs30b zirconia corund um brick za33 rebonded fused mullite brick with zircomia addition mfz6. A refractory material or refractory is a material that is resistant to decomposition by heat. Refractory brick high alumina bricks, high zirconia bricks. Aspholm 27 studied the corrosion behavior of azs 30 cr 2 o 3 a rebonded azs grain refractory with 30 wt.
The azs family of shapes consists of end pieces and an 18 wide x 12 to 22 middle channel section with 2 joints. Detrick company has the expertise to help improve the efficiency and dependability of your existing or future refractory application. These refractories are produced from chinaclay, asbestos kieselguhr, glass wool, mica vermiculite, bubble alumina, carbon, paper wool, ceramic fibers, saw dust etc. Typically, dolomite refractories are used in converter and refining furnaces. Requirements are formulated for the quality of electrofused aluminazirconiasilica azs refractories used in high capacity glassfounding furnaces. Apr, 2006 commercial composition low amount of zro 2 azs with sic and mgo respectively all raw materials were dried at a temperature of about 110c during 18 h, three grams of each one of the compositions presented in the table 1, were mixed, homogenized and pressed to form specimens of 2. Standard test method for testing of glass exudation from azs. Refel 1616ulx is an azs refractory with reduced zro2 content and an. Various types of refractory bricks, refractory castables, insulating materials for sale. All refractories are ceramics but not all ceramics are refractories. Mechanical behavior characterization of high zirconia fused. Emhart glass refractories emhart glass refractories for.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Products specs zircon mullite brick mz20 zircon mullite brick mz30 bonded azs brick azs 30a bond azs brick azs 30b zirconia corund um brick za33 rebonded fused mullite brick with zircomia addition mfz6. This article describes the parameters for the efficient operation of modern glassfounding furnaces designed to produce commercial glass. Before becoming a refractory plant in 1970, the owensville plant had specialised in the production of glass pot refractories. Zirconia refractories is widely used in the melter, superstructure, sidewall and throat of glass furnaces. Dense refractory product is material with their true porosity less than 45%, insulating refractory materials material with their true porosity more than 45 %. Pdf glass melting furnace refractories and refractory related defects.
Development of azs refractories for the glass industry. Electrofused azs refractories for highcapacity glass. The thermal expansion of refractories to 1,800 degrees c. Refractories books pdf this updated reprint provides uptodate information on refractories. You are correct about the uses of refractory brick in high temperature applications. The feasibility of pieces made out of sintered materials is a complex issue which depends on the interaction between several parameters, such as the type of material, the type of manufacturing process, the complexity of the shape, the dimensions of the pieces and the number of pieces to be made. It is thought as the leading cause of knot and cord defects. Refractory brick, or fire brick as it is often called, can withstand temperatures as high as 4,000 f and is commonly found in furnaces, fireplaces or exhaust stacks.
Detrick company is capable of providing the appropriate enclosure for your heathandling needs. This effect explains the inability to produce sintered mate. Fused cast azs exudation in glass contact is the main cause of impaired performance of azs under particular working conditions. Fused cast azs refractory materials refractories worldforum. The main objective was to compare the relative glass corrosion resistance of this rebonded fused azs cr 2 o 3 refractory. Ceramic bonded azs 15 46 0,2 36 3,2 19 100 1700 electrofused azs 33 16 47. Laclede christy was founded in 1844 and built a strong reputation as a refractory maker. We can special order depths greater than 12 inches. Aspholm 27 studied the corrosion behavior of azs30 cr 2 o 3 a rebonded azs grain refractory with 30 wt. There are mainly 7 types of zirconia refractories used in glass industry including fused cast azs block, fused cast high zirconia block, zircon brick, zircon mullite brick, azs ramming mass, rebound azs refractory and sintered azs.
The fused cast aluminazirconiasilica azs refractory is an indispensable material for state of the art glass melting furnaces. The main products of sunrise include fused cast azs block, fused cast alumina block, mullite brick, zircon brick, alumina bubble brick, sillimanite brick, corundum brick, low porosity fireclay brick, high alumina brick, all kinds of glass furnace ramming masses, etc. Fluxes high temperature products refractory engineers. Fused cast azs block fused cast azs tyazs33 fused cast azs 33 block has dense micro structure which ensures its great resistance in glass liquid, thus it is widely applied to glass furnace for superstructure, paving blocks, etc. We want to sell the best quality high temperature materials needed by our customers at the best price they can get to allow them to be competitive in their product area, product material,tungsten and molybdenum, tungsten and molybdenum products, steelmaking, steelmaking products, carbon felt and graphite felt,carbon felt and graphite felt. This disambiguation page lists articles associated with the title azs.
Kt refractories us company refractory bricks, ceramic. Fused cast azs block is also called electro zircon corundum block, which is abbreviated as azs because it contains al2o3zro2sio2. The journal of the southern african institute of mining and metallurgy. As the pioneer of monolithic refractories, plibrico japan. Pressing slip casting pressing slip casting pressing slip casting regular shape. Fused cast azs block is the most widely used refractory material in the demanding areas. Pdf in glass industry the different types of products need different furnace design.
Fused cast azs refractoryrefractory brick refractory furnace. Explosive spalling of low cement castable refractories a. This pdf is created by simpo pdf creator unregistered. This book encompasses the entire range of industrial refractory materials and forms. Ceramic refractories, azs, ceramic, azs refractory. As the refractory castable is heated, a volume expansion takes place within the lining as water turns to steam, causing pressure to build and the permeability of the material then dictates the rate at which the. As the refractory castable is heated, a volume expansion takes place within the lining as water turns to steam, causing pressure to build and the permeability of the material then dictates the rate at which the dryout can proceed if explosive spalling is to be avoided.
Alibaba manufacturer directory suppliers, manufacturers. Glass furnaces suffer permanent infiltrations of the alkali compounds, vapours and liquid, within the fusedcast azs reaction layer, thus pushing out the glassy phase, source of various. The apparent porosity is the volume of the open pores, into which a liquid can penetrate, as a percentage of the total volume of the refractory. Technology of refractory materials and heat insulating. The nigerian metallurgical industries are struggling today because. We offer complete glass furnace refractories and mortars for your project. Masso and the refractory tests laboratory from german speciality glass producer schott. Jul 16, 2015 fused cast azs block is the most widely used refractory material in the demanding areas. If an internal link led you here, you may wish to change the link to point directly to the intended article. Ceramics and refractories cover a wide range of fields and applications, and their relevance can be traced as far back as 24,000 bc to the first manmade piece of earthenware, and as recently as the late 1900s when ceramics and ceramic matrix composites were developed to withstand ultrahigh temperatures. The main objective was to compare the relative glass corrosion resistance of this rebonded fused azscr 2 o 3 refractory.
Aderibigbe, 1989, reported that virtually all the refractory requirements in all the metallurgical industries in nigeria are imported. The currently available azs refractories enable the glass maker to. It also describes the structure of the heatinsulating and refractory materials used to line such furnaces. Refractory bricks china high quality suppliers lontto.
Fused azs refractory composition corhart refractories. This property is important when the refractory is in contact with molten charge and slag. The main products of sunrise include fused cast azs block, fused cast alumina block, mullite brick, zircon brick, alumina bubble brick, sillimanite brick, corundum brick, low porosity fireclay brick, high alumina brick, all kinds of. Kt refractories us company refractory bricks, ceramic fiber. As the original creator of suspended refractory constructions, m. The need for information relative to the expansion of refractory materials, up to. Feb 12, 1991 fused azs grain refractory compositions suitable for making ceramically or chemically bonded refractory articles, and the articles so made, are disclosed. Under this category come the refractories produced from the mixtures of high purity refractory oxides, carbides, borides, and metals or alloys. Glass melt contact refractory corrosion can lessen with time due to boundary layer formation and the effect of external cooling at the metal line.
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