Luoyang HongtengIntermediate frequency induction furnace
Induction heating furnaces, the traditional rolling process, involve the billets obtained from steelmaking being cooled by stacking, transported to the rolling mill workshop, and then heated by induction heating furnaces and finally rolled into steel. This process has two drawbacks: Firstly, the small billets are pulled from the steelmaking continuous casting machine at a temperature of 700-900°C on the cold bed. The latent heat of the small billets is not used effectively. Secondly, the slab is heated by the heating furnace and a part of the oxidation is lost. In order to make maximum use of the latent heat of the continuous casting billet in the continuous casting machine, the customer generally chooses to use continuous casting and rolling, but the temperature of the billet coming out of the continuous casting machine is not yet directly into the rolling mill, it needs to be heated again to make the temperature reach 1100°C, usually by using a reheating furnace to increase the temperature. In order to fully save energy, billet slab heating induction furnaces are generally used to heat the continuous casting billets online, thus enabling continuous casting and rolling. Here are some videos of our products for your understanding and reference, hope they...
Full continuous rolling mill is usually continuous casting and continuous rolling. The requirements for raw materials are relatively high, and the scrap iron does not meet the requirements of a full continuous rolling mill. Continuous casting machine manufacturers use scrap steel as the raw material, continuously casts it into high-quality steel billets, and then perform a full continuous rolling mill. Because the rolling mill uses independent power and electrical control, it can complete rolling at one time, which helps greatly to improve the capacity of rolled steel. CCM casting machine is designed on the basis of the introduction of foreign advanced rolling technology experience. The new concept of rolling technology is selected, which can meet the different sizes of steel billets. Continuous casting machine has not only fast-rolling speed but also low power consumption. The raw material is not strict. The practice of large-scale metallurgical machinery engineering has proved that the continuous casting machine and rolling mill not only have a high capacity but also the equipment repair and maintenance costs are not high. While environmental protection and energy-saving, also reduce the labor intensity. In the process of high-strength steel rolling, the wear of the rolls, bearings, guides, and other...
Induction furnace is a kind of electric furnace that uses induction electric heat effect to heat or melt the material. The basic components of the induction furnace are induction loops wound with copper tubes. AC voltage is applied to both ends of the induction coil to generate alternating electromagnetic fields, conductive materials are placed in the induction coil, eddy current is generated in the materials due to electromagnetic induction, and electric energy is converted into thermal energy under the action of resistance to heat the materials; Therefore, it can also be considered that induction heating is a direct heating type of resistance heating. Induction heating is characterized by uneven electric heating power (current distribution) converted in the heated material, with the largest surface and the smallest center, which is called the skin effect. In order to improve the electric heating efficiency of induction heating, the power supply frequency should be appropriate. Small smelting furnaces or high-frequency electricity should be used for surface heating of materials, while large smelting furnaces or medium-frequency or power-frequency electricity should be used for deep heating of materials. The induction coil is a load with considerable inductance, and its power factor is generally very low. In...
Induction heating furnaces are also called preheating furnaces, reheating furnaces Online temperature measurement system. To ensure accurate control of the temperature of small billets and continuous cast billets during the heating process, infrared thermometers are generally arranged at the inlet and outlet of the industrial heating furnace. In addition, to compensate for the time difference in temperature measurement by the pyrometer and to improve control sensitivity, furnace body detection devices are installed at the inlet and outlet of each group of furnaces to make the heater more sensitive and reliable when maintaining low and high power switching. Increase the sorting system, in order to guarantee that the temperature of the heated billets is up to standard, you can add a sorting system at the exit of the heating furnace so that the billets with substandard temperature can be screened. Here are some videos of our products for your understanding and reference, hope they can bring you help. https://www.youtube.com/watch?v=15A_ZbFYCBY
Continuous casting machines mainly include steel ladle and ladle rotary table – intermediate ladle – lead ingot device – crystallizer and crystallizer vibration device – fan section – billet cutting device (such as flame cutting machine or hydraulic shear and swing shear). The middle ladle plays the role of buffering and purifying the steel liquid, the capacity is generally 20% to 40% of the capacity of the steel ladle, the more the number of streams in the CCM machine, the larger the capacity. The crystallizer is the “heart” of the CCM continuous casting machine, requiring good thermal conductivity, structural rigidity, wear-resistance, and ease of manufacture and maintenance characteristics, generally made of forged copper or cast brass, its outer wall through the water forced uniform cooling. CCM casting machine is preceded by steelmaking equipment. Steelmaking equipment is used to produce steel liquid, the main method of steelmaking is the oxygen converter method of steelmaking. There is also the use of an industrial induction furnace for melting steel from scrap steel. The continuous casting machine process is followed by rolling, for example, the steel rebar production line: the main processes are induction heating furnace – roughing rolling mill – continuous rolling mill...
1. The metal melting furnace process is more stable, and the castings have higher mechanical strength. In the induction furnace can be melted in various compositions of iron, due to the melting process of oxidation lossless, and can be more convenient to adjust the composition and temperature of the iron liquid, the final quality of the iron liquid obtained is more stable. In recent years, new processes for the production of high-strength and low-stress castings have emerged abroad. The method is to use 40% to 80% of scrap steel in the ingredients, first obtain low-carbon raw molten iron, then heat it to 1450°C for decarburization, and make the chemical composition reach the value specified in the process, and then overheat the molten iron to keep the temperature at 1500～1550℃ for 10～30min, and strictly control the crystallization supercooling degree of the molten iron. 2. The use of induction furnaces for melting non-ferrous metals can reduce melt burnout or achieve oxidation-free melting, such as aluminium induction melting furnaces, copper induction melting furnaces and zinc melting furnaces. 3. The use of induction melting furnaces reduces environmental pollution. Because the induction electric furnace does not have energy carriers of combustion products, the discharge of...
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