Internal hole quenching equipment, intermediate frequency heating equipment, internal gear quenching equipment, high-frequency induction furnace, hardened surface Ningbo Dedao Electronic Technology Co., Ltd , https://www.nbdedao.com
Jinan Jiang Hua Forging Machinery Co., Ltd was established in 1995 and is located in the eastern suburb of Jinan, a city known for its strategic geographical position. The company benefits from being near Jinan International Airport to the west and Qingdao Port to the east, making it easily accessible for both domestic and international logistics. Covering an area of 480,000 square meters, the company has invested over 3.8 billion RMB and employs more than 360 staff members, including over 30 skilled technicians. With an annual production capacity exceeding 10,000 tons, Jinan Jiang Hua is a leading manufacturer in the forging industry.
The company specializes in producing high-quality forged pipe flanges, including welding neck, slip-on, blind, socket welding, and threaded types. These products are manufactured using advanced forging techniques and are available in various sizes ranging from 1/2" to 80", or DN15 to DN2000. They are suitable for a wide range of pressure ratings, such as 150#, 300#, 600#, 900#, 1500#, and 2500#, as well as PN6, PN10, PN16, PN25, PN40, PN64, and PN100. Additionally, they offer flanges with different wall thicknesses, including Std, Sch40, Sch80, Sch160, and Schxxs, ensuring flexibility for diverse applications.
Jinan Jiang Hua uses high-quality raw materials such as Carbon Steel A105, Stainless Steel 304/304L, and 316, which meet international standards like ASTM, ASME, DIN, JIS, and ANSI. The flanges are coated with black paint, yellow transparent paint, or cold and hot galvanized finishes for enhanced durability and corrosion resistance. They are packaged in seaworthy wooden cases or pallets, tailored to the customer's requirements.
The company also offers customized solutions, including special designs, surface treatments, and packaging options. Their products are widely used in steam, air, gas, and oil pipelines, as well as other fluid systems. Jinan Jiang Hua ensures quality through certifications such as TUV and ISO 9001, guaranteeing that every product meets the highest industry standards. With a strong commitment to innovation and customer satisfaction, the company continues to expand its market presence globally.
Intermediate frequency induction heating system is a widely used heating technology in the industrial field, with a working frequency typically ranging from a few hundred hertz to several thousand hertz, between audio and radio frequency. This heating method utilizes the principle of electromagnetic induction to generate eddy currents in the metal workpiece through an alternating magnetic field, thereby converting electrical energy into thermal energy and achieving rapid heating of the metal. Compared with high-frequency and ultra-high frequency induction heating, medium frequency induction heating systems provide a better balance in penetration depth and heating area, making them suitable for heating larger cross-sectional metal materials.
working principle
The operation of the intermediate frequency induction heating system is based on Faraday's law of electromagnetic induction. When an alternating current passes through an induction coil, an alternating magnetic field is generated near the workpiece. This magnetic field will generate eddy currents inside the workpiece, that is, induced currents. The flow of current generates Joule heat, thereby causing the workpiece to heat up. The frequency selection of the intermediate frequency ensures a moderate depth of thermal penetration, neither shallow nor deep, suitable for heating thick metal materials.
Main components
Induction coil: carries alternating current and generates a magnetic field.
Power supply: Provide stable intermediate frequency current.
Control system: Adjust frequency and power output, monitor heating process.
Cooling system: Ensure that coils and other components do not overheat due to prolonged operation.
Supporting mechanism: Position and fix the workpiece to be heated.
Characteristics and advantages
High heating efficiency: high energy conversion efficiency and low heat loss.
Uniform heating: By adjusting the frequency, more uniform heating can be achieved.
Non contact heating: There is no direct contact with the workpiece, reducing the risk of contamination.
Fast heating speed: Compared to methods such as resistance heating, the heating speed is much faster.
Wide applicability: Suitable for heating various metal materials and large cross-sectional workpieces.
Typical applications
Intermediate frequency induction heating systems are widely used in many industries:
Metal processing: preheating before welding and forging of steel pipes.
Heat treatment: surface quenching, tempering and other heat treatment processes.
Casting: alloy melting and insulation.
Oil and gas: Heating of pipeline welding, valves, and fittings.
Aerospace: Thermal assembly of aircraft components.
Automobile manufacturing: Heating of components such as wheels and bearings.
conclusion
The medium frequency induction heating system plays an important role in modern industrial production due to its high efficiency, speed, and controllability, especially in situations where precise control of heating depth and uniformity is required. With the continuous advancement of technology, intermediate frequency induction heating systems are developing towards automation, intelligence, and modularity to better adapt to increasingly complex industrial needs.