wanhaorefractory

  Refractory castables are usually classified according to the size of porosity, selected binder or bonding method, aggregate type and construction method. According to the porosity, it can be divided into dense refractory castables and insulating refractory castables. According to cementing methods, refractory castables can be divided into four types: hydration bonded castables, chemical bonded castables (including polymerization bonded castables), hydration and polymerization bonded castables (typically low cement bonded castables) and condensation bonded castables. According to the special functions of binders and some materials, they can be classified into the following seven categories: (1) clay bonded refractory castable; (2) superfine powder (such as silica fume, etc.) combined with refractory castable; (3) Cement bonded refractory castable; (4) chemically bonded refractory castable; (5) ρ-ALO (hydrated ALO) combined refractory castable; (6) Low cement bonded...

Factors affecting the surface temperature of steel ladle shell are steel smelting temperature, environment temperature and thermal resistance. 1.Steel smelting temperature. The increase in the temperature of molten steel led to an increase in the temperature of the steel ladle shell, but not obvious. In the general steelmaking temperature range, the resulting steel ladle temperature changes within 10℃. 2.Ambient temperature. When the outside temperature decreases and the temperature of the steel shell decreases. Generally the outside temperature decreases by 10℃, and the temperature of the steel ladle shell decreases by 5℃. Therefore, improving the external conditions could observably decrease the temperature of steel ladle shell. 3.Thermal resistance. The thermal resistance increases, the temperature of the steel shell decreases significantly, and the energy consumption decreases. Wanhao is a manufacturer who is specialized in designing vario...

Refractory castable construction requirements: 1. Winter construction refers to the ambient temperature at +5 ℃ ~ -5 ℃ when the construction. The temperature below -5 ℃ when only the adoption of a reliable anti-cold measures after the construction of gas. 2. Winter construction must refer to winter construction skills initiatives. To do a good job on the work environment of the block, the wind, heating and warm work, to keep the masonry after the temperature of +5 ℃. 3. During the winter construction of castable material, the dry material should be stored in the heating room, and with water spices, mixing material temperature maintained at 10 ℃ or more. Loss of additional chemical accelerator or antifreeze. 4. Winter in the furnace construction, the first insulation layer should be good to mobilize the refractory layer of anti-freeze ability. After construction, masonry covered with plastic sheeting, and then covered with dried vegetables. On the new puzzle kiln, the ...