wanhaorefractory

  After the fine powder is introduced into the medium induction furnace, many small voids are filled, which reduces the air permeability of the induction furnace charge and causes bursting. Reason for crack of induction furnace lining material : Calcium aluminosilicate hydrates or gels, which are similar to zeolite type in the traditional medium frequency charge, are seldom formed by the decomposition of hydrates and become exhaust channels before 300 degrees. After 300 degree dehydration, a large amount of water vapor is released and burst. Easy solution to crack of induction furnace lining material : 1. Adopt reasonable drying and heating system to control the maximum vapor pressure inside the medium frequency charge; 2. Explosion proof agent and other anti explosion substances are added to the induction furnace charge to increase the air permeability of the hardened body and reduce the internal vapor pressure of the castable. Wanhao is a manufacture

  (1) After heat treatment at 1000°C and 1300°C, the linear shrinkage of mullite-bauxite castables decreases with the increase of cordierite content; (2) The bulk density of mullite-bauxite castables decreases with the increase of cordierite content; (3) After heat treatment at 1000°C and 1300°C, the flexural strength of mullite-bauxite castables decreases with the increase of cordierite content; (4) When w (cordierite) = 5%, the compressive strength of mullite-bauxite castables after different heat treatment temperatures is the maximum； (5) As the content of cordierite increases, the mullite-bauxite castable helps to improve the thermal shock resistance of the material, the strength retention rate of the material gradually increases, and the lower bulk density is conducive to material acquisition higher strength retention rate after thermal shock. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for el

  In 1991, 75.6% of the world's total stainless steel production was produced by the AOD method (8 million tons of stainless steel). The proportion of using AOD refining technology at home and abroad is increasing. The type of AOD furnace is similar to that of LD converter. The supporting trunnion of the furnace body can be tilted at any angle. The AOD furnace is placed in a rotating support shaft ring connected with the tilting shaft. The container can rotate forward 180° at a variable speed and 80° backward. AOD equipment mainly consists of furnace body, trunnion ring, tilting mechanism, gas mixing feeding system, temperature measurement and sampling system. The AOD furnace is lined with refractory materials such as magnesia and chromium, and the lower part is designed as a cone with an inclination angle of 20°. The purpose is to make the incoming gas rise away from the furnace wall to avoid erosion of the upper furnace wall of the tuyere. There are 2 or more