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• Time of issue:2014-08-18 16:28
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(Summary description)　　Due to the special working conditions of the smelting industry, there are many high-temperature areas in the steel plant workshops. How to protect these high-temperature areas has become the primary problem to be solved in the production of steel mills. The author recently visited the Anyang Steel Plant. After on-site surveys and the introduction of the workshop director, the steel plant’s high temperature zone mainly contains the following three parts.

　　一 Ladle car cable and argon metal hose, the ladle car is an important link for conveying molten steel, and it is the link between the previous and the next. During the tapping process, molten steel and steel slag will splash out under the impact of the steel stream. The cables and argon pipes of the ladle car are burned by the high-temperature molten steel and cover the outer wall of the cable insulation layer. A large amount of heat transfer will cause the insulation rubber. Overheating, rapid aging and brittleness. There are serious safety hazards, which restrict the normal production rhythm.

　　Argon gas is an important measure for refining molten steel. The argon gas pipe is closely attached to the wall of the ladle. If the metal hose is burned by the steel slag sprayed, gas leakage may occur, causing the argon gas pressure to fail to meet the requirements, and it will be lost. Even temperature and pure molten steel can even cause the package to be turned over.

　　2 The hydraulic tubing and cylinder body of the opening and closing mechanism of the ladle nozzle, the ladle molten steel pouring the molten steel into the tundish through the opening of the ladle nozzle, is one of the most critical links in continuous casting production. The ambient temperature of the hydraulic oil pipes and the cylinder block is as high as 800 degrees. The joints of the hydraulic oil pipes and the cylinder block are affected by high-temperature radiant heat. The metal of the hydraulic oil pipe joints and the cylinder block absorbs a large amount of heat energy, and the sealing and sealing of the oil pipes The cylinder block O-type seal is affected by high temperature and the seal is inelastic, resulting in capillary holes. When the metal shell expands and contracts with heat, hydraulic oil leaks out along the capillary holes, which affects the normal operation of the hydraulic system, and even catches fire and burns. The accident forced the suspension of production.

　　三 Electromagnetic stirring cable, the essence of the electromagnetic stirrer is to use the electromagnetic force induced in the liquid cavity of the slab to strengthen the movement of molten steel. Specifically, the alternating magnetic field excited by the stirrer penetrates into the molten steel in the casting slab, and a current is induced therein. The induced current interacts with the local magnetic field to generate electromagnetic force. The electromagnetic force is a volume force and acts on the molten steel volume element. , So as to promote the movement of molten steel. The cable uses super-power current to improve the internal quality of the casting. The cable is in an environment of high temperature and water vapor. The cable itself generates eddy current under strong magnetic induction through the super-power current. The service life of the electromagnetic stirrer.

　　It is understood that the protective materials currently used by most steel mills are: cheap asbestos fiber products. Asbestos fiber has low strength, poor toughness, and is easy to rot, and the heat insulation effect is not obvious, the anti-radiation ability is low, and it is easy to loose and fall off after high temperature, and the service cycle is short. The falling off asbestos dust has carcinogens that are harmful to the human body and affect the on-site environment. Increased the labor intensity of workers.

　　Henan Haigeer High Temperature Material Co., Ltd. is committed to professional high temperature protection materials. The steelmaking series of high temperature materials produced by it have good flexibility, high density, and obvious heat preservation effect, and can be exposed to molten steel in a short time. The maximum temperature resistance can reach 1650 degrees in a short time, and it can work at about 260 degrees for a long time. We specially design and tailor the equipment according to the manufacturer's equipment, and put a protective coat on the cables and pipes in the high temperature and harsh environment, which effectively improves and prolongs the operation rate and service life of the equipment. The steel-making series of high-temperature materials are made of imported high-quality silicone rubber, which plays a role of heat insulation and sealing insulation, and the inner layer of alkali-free glass fiber plays a role in heat resistance. Steelmaking series high temperature materials can effectively protect cables and hydraulic tubing. It is the best choice for high temperature insulation in steel mi