wanhaorefractory

Refractories used for ladles are generally ladles and refining refractories, furnace refractories, converter refractories, tundish refractories, blast furnace refractories, etc. Specific products are ladle air permeable bricks , furnace cover, tundish slag retaining wall, castable, ramming materials, etc. The purpose of ladle gas permeable bricks used by steelmaking factories is to remove harmful gases and impurities, adjust the composition, so as to complete the basic tasks of oxygen supply, slagging, stirring, heating and other steelmaking. In addition to ladle permeable bricks , refractories for ladle and refining are magnesia-carbon bricks , nozzle seat bricks, slide-board bricks, spinel castables, magnesia-chrome bricks, sliding nozzles, etc. The materials are magnesia-carbon, high alumina, spinel, alumina-carbon, etc. The refractories used in electric furnace are mainly the furnace cover, bottom air permeable brick, side wall spraying material, tapping fill...

1. Physical damage a. Thermal shock damage In the actual steel casting process, the zirconia sizing nozzle is heated at a relatively high temperature due to the high temperature of the pouring steel, and the inside of the nozzle is unevenly heated, so that the sizing nozzle is subjected to severe thermal shock. b. Mechanical erosion damage The mechanical flushing of the molten steel to the nozzle is very serious. Although molten steel is a high-viscosity liquid, it has a severe heat wash on the nozzle due to the large ratio of molten steel, high temperature and fast flow rate. 2. Chemical damage a. Zirconia desolvent Zirconium oxide is destabilized due to the desolvation of the stabilizer, and flow away with the molten steel. b. Infiltration and erosion of molten steel and steel slag The molten steel etches the zirconia sizing nozzle to form a low-melting oxide, and the liquid phase formed by the reaction gradually penetrat...

1.Optimize the heat exchange process, shorten the heat replacement time, ensure the temperature inside the furnace and the hole shape of the taphole, thus ensuring the sintering effect of the taphole filler and laying a foundation for improving the life of the taphole. 2. Appropriately increase the inner diameter of the taphole sleeve brick to shorten the tapping time, greatly reducing the oxidative erosion and mechanical erosion of the high temperature molten steel on the inner wall of the taphole. 3. Reduce the tapping temperature, the large drop of the tapping temperature reduces the erosion of the high temperature molten steel and slag on the taphole brick , and effectively improves the service life of the tapping port. 4. After tapping, the slag plug is used to block the taphole, which reduces the erosion and oxidation of the furnace gas and slag on the tapping port during the smelting process. Wanhao is a manufacturer who is specialized in designing v...

1. Life: > 100 times 2. Baking time: must strictly follow the baking curve, especially in the early stage, not too high temperature. It can be operated according to the baking curve provided by the previous manufacturer. 3. Construction method: mould and vibrating rod. 4. Ordinary need to repair: need to remove the sintered layer, cover repair to increase life, because repair is more troublesome, customers generally do not repair operations. 5.  Corundum castable i s not used for refining ladles. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. Article Source: refractory material Company name：Wanhao Refractory Email:sales100@wanhaorefractory.com Website: http://www.wanhaorefractory.com/

Electric furnace taphole brick with low silicon high calcium high purity fused magnesia and fused magnesia as main raw materials, with high purity graphite flake, adding metal and boron compounds and other words composite additive, thermosetting and thermoplastic phenolic resin based composite. Electric furnace taphole brick   products with high density, high strength, high purity characteristics, resistance to steel, mechanical erosion performance, high temperature and oxidation resistance of special good. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. Article Source: refractory material Company name：Wanhao Refractory Email:sales100@wanhaorefractory.com Website: http://www.wanhaorefractory.com/

The quality of bauxite will affect the control of production technology conditions, equipment capacity, energy consumption and product quality. The evaluation indexes of bauxite quality mainly include aluminum content, aluminum to silicon ratio of bauxite and type of bauxite. 1.Alumina content. The alumina content in bauxite is usually between 45% and 75%. The higher the content of alumina, the better the product quality; 2.The ratio of aluminum to silicon of bauxite. The higher the ratio of aluminum to silicon, the better the quality of bauxite. At present, industrial production of alumina requires bauxite with an aluminum to silicon ratio of not less than 3.0-3.5. 3. Type of bauxite. Different types of bauxite, the technical conditions adopted are also different. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. Article Sourc...

1. Electrode end face consumption. Cause: Continuous sublimation at high temperature; thermal stress is generated in the electrode to peel off; when the   slag   layer is thick, the electrode end is in contact with the   slag   liquid phase and is partially melted. 2. The side of the electrode is consumed. When the temperature exceeds 400℃, oxygen can penetrate into the graphite surface to oxidize. Oxidation is exacerbated when the temperature exceeds 550-600℃. 3. The electrode is broken. Causes of fracture: failure of the electrode lifting system; improper distribution of scrap steel in the furnace, collapse of the bulk material, and improper melting process. 4. Stump consumption. In order to prevent the electrode tip from inadvertently falling into the molten steel and increasing carbon, it is usually manually removed. The loss of this part can be as high as 5%. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making ...