1.Definition and Characteristics of Unshaped Refractories Indeterminate refractories do not have a complex firing process, the production of raw materials required for easy access, low prices, production process is simple; plasticity is very strong, indeterminate refractory refractoriness and chemical stability can reach the level of similar refractory bricks, easy to prefabricated into a block, easy …

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Speaking of refractory bricks, for those who are not familiar with the refractory industry, think that refractory bricks are only square, but do not know that there are many kinds of refractory bricks. From the refractory brick material, the most commonly used refractory bricks are: clay bricks, high alumina bricks, lightweight clay bricks, lightweight high …

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Many people buy refractory castables but do not know how to construct them in a standardized manner (see the refractory castable construction standards for details), what procedures are involved, and what details should be paid attention to during construction. As a result, the refractory castables have a short service life and often have problems. If …

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The material system, construction method and performance of hot patch, spray patch, grout and hand thrown material for the maintenance of different areas of the converter are summarized, the selection of refractory materials for the maintenance of the converter, the consumption ratio and its correlation with the working conditions of the converter are analyzed, and …

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Alkaline magnesium refractories characteristics and application prospects Basic magnesium refractories play an important role in the industrial field with their unique characteristics. High-temperature stability is one of their distinctive features, which enables them to maintain structural stability in high-temperature environments and is less susceptible to thermal shock and chemical erosion. Secondly, alkaline magnesium refractories have …

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According to different working environments, the furnace wall can be divided into ordinary furnace wall area, slag line area and hot spot area. Furnace wall is often subjected to high temperature effect and the impact of rapid temperature changes, but also by the direct scouring of liquid steel, slag chemical erosion, as well as mechanical …

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Refractory furnace lining, an important component of crucible-type induction furnaces, affects the melting function of the furnace, the metallurgical quality of the steel, and, especially critical, the safety of the operation. As crucible type induction furnace is suitable for melting various casting alloys, such as cast iron, cast steel, copper alloy, aluminum alloy and zinc …

Multi-angle interpretation of electric furnace 5 types of refractories Read More »

Production of refractories for alumina (1) Refractories for rotary kiln. Rotary kiln is divided into pre-tropical, firing belt and cooling belt. Firing belt working temperature is not higher than 1200 ℃, kiln insulation layer structure for the first by the furnace shell laying a layer of refractory fiber felt, and then with diatomaceous earth bricks, …

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Converter is an important equipment for steel making, it is a kind of steel making furnace which does not need external heat source and mainly takes hot pig iron, scrap steel and iron alloy as raw material. According to the nature of the lining refractory material is divided into acid converter and alkaline converter, according …

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The key technology of smelting clean steel is slag-free steel, i.e. the sliding water outlet slag blocking technology is adopted in the steel outlet of converter. Due to the very rapid opening and closing of the sliding plate, it can effectively block the pre-slag and post-slag in the process of steel discharge, and it can …

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Reduce converter turnkey refractory consumption converter lining refractory use is directly related to the safety of the steel plant, operation and production, but also significantly affect the cost of steelmaking process, advanced steel mills and refractory suppliers will be the refractory consumption of the converter as one of the main indicators of its work. Converter …

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AOD converter smelting system basically consists of several parts such as furnace system, gas source device, dust removal system, material supply system and so on. A complete furnace system is a complex linkage including furnace body, drag ring, tilting mechanism, suspension system. The following figure is a typical early AOD converter furnace. Furnace body is …

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Electric Stove The electric furnace steelmaking method mainly utilizes electric arc heat, and in the electric arc action area, the temperature is as high as 4000℃. Smelting process is generally divided into melting period, oxidation period and reduction period, in the furnace can not only cause oxidizing atmosphere, but also can cause reducing atmosphere, so …

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The basic principle of the AOD method is the use of gas dilution method, so that the CO partial pressure is reduced. High-pressure argon and oxygen gas mixture blown into the molten steel and bubbles and slag contact opportunities to increase, conducive to carbon, sulfur, non-metallic inclusions, such as the rapid removal. In the smelting …

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Steel production due to a variety of furnace working environment and service performance is not the same, so the refractory requirements are different. Refractories for AOD furnaces Since 1968, the American Joslin company invented the AOD steel refining method, since its application has been, has been rapidly popularized. So far, AOD steel refining method has …

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The quality of high alumina bricks to improve , no more than high-pressure molding, high-temperature sintering. However, in the production process, it is necessary to start from the source, in order to better ensure the stability of the quality of the product. High-alumina bricks are divided into one, two or three levels High-aluminum bricks are …

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