wanhaorefractory

  At present, there are two main measures to improve the bursting resistance of refractory castables , reasonable drying and heating system and application of explosion-proof additives. Due to the different production conditions in different kilns, it is difficult to formulate a unified and reasonable drying and heating system. Therefore, anti-explosion substances are often added to improve the anti-explosion performance of refractory castables . The new high-strength corrosion-resistant castable has excellent corrosion resistance and good thermal shock resistance, which makes it widely used in the lining of key parts of large kilns. In the production process, the structure, particle size distribution, material and additives were adjusted to improve its anti-cracking performance, but at the same time, some problems were brought, such as too fast setting speed, delayed hardening and instant loss of fluidity, which caused the refractory castable to burst from time to ...

  At present, there are two main measures to improve the bursting resistance of refractory castables , reasonable drying and heating system and application of explosion-proof additives. Due to the different production conditions in different kilns, it is difficult to formulate a unified and reasonable drying and heating system. Therefore, anti-explosion substances are often added to improve the anti-explosion performance of refractory castables . The new high-strength corrosion-resistant castable has excellent corrosion resistance and good thermal shock resistance, which makes it widely used in the lining of key parts of large kilns. In the production process, the structure, particle size distribution, material and additives were adjusted to improve its anti-cracking performance, but at the same time, some problems were brought, such as too fast setting speed, delayed hardening and instant loss of fluidity, which caused the refractory castable to burst from time to tim...

  Usually the refractory castable with Al2O3 content (mass fraction) greater than 90% is called corundum refractory castable, and its main phase is corundum, because corundum has the characteristics of high melting point (2050℃) and strong resistance to slag erosion, which makes corundum high-quality castables have high refractoriness and good chemical stability. The refractory raw material combination of corundum refractories has many forms, such as: (1) Corundum refractory castable use white corundum as aggregate and powder. (2) Use plate-shaped alumina and dense (sintered) alumina as aggregates, and use dense (sintered) alumina as powder; (3) Sub-white corundum or brown corundum is used as aggregate, and dense (sintered) alumina is used as powder; (4) Use white corundum and super bauxite clinker as aggregate, white corundum as powder, etc. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric fu...

Ladle covering agent is used for heat preservation in ladle, good ladle covering agent is able to automatically break and spread out once put into ladle with molten steel to form a full cover with three layers melting structure, to prevent molten steel from reoxidation and heat radiation and absorb harmful subsidiaries on the molten steel surface. There should be no slag adhering, no carbon increasing, no erosion to the lining, no crusting, able to prolong ladle service life, easy to operate, decrease labor work. 1.Thermal insulation effect should be good, molten steel temperature drop should be less than 0.5℃/min. 2.Smaller specific weight, no splash when charging, good working condition, no pollution, safe, no bad influence on molten steel quality. 3.Round granular, good motility, in loose condition after charging, good spreadability, able to form a full cover in a short time. 4.No crusting. Wanhao is a manufacturer who is specialized in designin...

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 ...

Application area: Between tundish and crystallizer; Application method: CCM worker use the tools for hooking slags to evenly push the casting powder into crystallizer; Quantity: Normally it is 30-35 kg per ton of molten steel (Square Billet); Attention: The feeding of casting powder should be frequent and with small quantity, casting mold powder should be evenly distributed in crystallizer. Make sure the slag surface(except the middle tapping spot) is black, can’t be red or shiny. Luoyang Wanhao New Material Co., Ltd. is situated 10 kilometers south of Luoyang which is an ancient city of thirteen dynasties. Luoyang is of rich refractory raw materials and convenient transportation which contribute a lot to Wanhao’s production and development. Wanhao has a staff scale of 410 people including 63 engineers as well as 180 sets of production and test devices, and also Wanhao has an annual output of 160,000 tons of refractory products . Wanhao is a manufacturer who is...