Ladle furnace steelmaking---the development in the domestic

Domestic ladle furnace manufacturers should establish a modern enterprise management system and actively implement international quality management standards. Competition in the electric furnace equipment market will further force companies to reduce costs, and competition will make the profit trend of electric furnace equipment more reasonable. Let us find the market position in the fierce competition, develop leading technology, manufacture reliable products, reduce production costs, strengthen after-sales service, and with the deepening of my country's reform and opening up, the strengthening of the market economy will force a large number of parts manufacturers to mass production Road, thereby further increasing the demand for industrial electric furnaces. This will bring new opportunities to equipment manufacturers.

The development trend of ladle furnace:

    The future industrial electric furnace technology will have distinct characteristics of the times, with four major characteristics: intelligence, high quality, low cost, and environmental protection.

  Intelligent:

    Develop and use the latest procedures and heat treatment databases, computer simulation technology and control technology, and adopt a highly flexible and intelligent integrated control and management system for industrial electric furnaces and their production lines. In the future, equipment operators only need to input the number of workpieces and patterns to be processed into the computer, and the entire equipment will process high-quality products by itself.

    At present, real-time multi-project operation control of the entire system has been realized. Such as controlling the loading amount, operating speed, temperature, carbon potential, etc., can realize multiple group control systems, full screen monitoring and control the dynamics of batch feeding. It can fully control the process and can store several processes. It can completely record the process parameters (part number, material, temperature, atmosphere, etc.) detected in the operating conditions of the equipment, send it to the computer for processing and store the record. Can be read and printed at any time. It can store records for ten years. Equipment purchase level:

    Equipment reliability, price, and advanced nature have always been the three principles for purchasers to purchase equipment. However, the order of this principle and the combination of buyers' groups will change with the deepening of the market.

    The ordering principles for purchasing equipment for large enterprises, military industrial enterprises, aerospace enterprises, foreign-funded enterprises, and large private enterprises are: advanced nature, reliability, and price; imported or foreign-funded enterprise products are the first choice.

    The ordering principles for purchasing equipment for private enterprises with a certain scale, transformation of private enterprises, and small foreign-funded enterprises are: reliability, price, and advanced nature; foreign-funded enterprise products or domestic-funded high-quality products are the first choice.

    Private enterprises in the accumulation of capital have the following principles for purchasing equipment: price, reliability, and advanced nature, with low-priced products as their first choice.

 high quality :

    The mass dispersion rate is zero, and the heat treatment distortion becomes zero. Quality control measures:

    Equipment temperature control: furnace temperature stability≤±1℃, furnace temperature uniformity≤5℃, cold treatment temperature uniformity≤5℃. On-off temperature control will be eliminated.

    Furnace atmosphere control: furnace atmosphere uniformity≤±0.05%C. Oxygen probe, decarbonization air pump, carbon potential controller, furnace gas regulator are commonly used in electric furnaces.

    Quenching tank control: in terms of ensuring the uniformity of workpiece hardness and reducing part deformation, it has developed from simply reducing the cooling rate in the past to devoting to improving cooling uniformity. The quenching tank is equipped with an adjustable speed and powerful agitator, and the flow field of the quenching tank is emphasized. Temperature uniformity. The temperature of the quenching tank is controllable. Computer cooling medium performance tester is accepted by many users.

    Heat treatment distortion control: the preheating zone of the quenching furnace is lengthened to eliminate stress. It adopts a fully-enclosed and controllable graded quenching tank with heat preservation. The temperature uniformity of the quenching medium is less than or equal to 5°C. In order to reduce the amount of retained austenite in the parts, and control the micro deformation after hot working.