At present, the medium frequency furnace is widely used in the machinery industry for thermal processing. Due to its high production efficiency, the medium frequency furnace is favored by users. However, due to the technical reasons of some manufacturers, some medium frequency furnaces may produce a lot of noise at the same time.
What is the cause of the noise and whether it can be eliminated? The answer is yes. First of all, the noise basically comes from the medium frequency furnace body. According to the theory of electromagnetic induction, when the coil heats the furnace charge, the coil will also vibrate under the electromagnetic force response. The amplitude basically determines the noise, (in fact, the furnace charge will also vibrate, the small charge will vibrate more, and the large charge will vibrate less, which is also related to the position of the charge in the furnace.) the noise mainly comes from the coil vibration, which can be explained by the fact that the noise is significantly reduced after reducing the coil vibration.
Vibration model of medium frequency furnace, vibration along the radial direction, vibration along the axial ends, 1. vibration in radial direction 2.The vibration of the two ends along the axial direction shows that for the axial force of the coil, the axial electromagnetic force of the two ends is small, and the flexible vibration is displayed when the axial support force stiffness is insufficient. Under the influence of radial force, it expands and vibrates in the circumferential direction. The electromagnetic force analysis results of the above copper tube inductors are shown in the table below. It can be seen that the radial force is basically constant and the axial force decreases from both ends to the center.
When the coil is used, it has been fixed, but the transmission of vibration cannot be prevented. The magnitude of vibration in both directions depends on the magnitude of rigidity in both directions. If the rigidity is strong, the vibration will be small. Otherwise, if the rigidity is poor, the vibration will be large.
FOREVER Electromechanical is a professional manufacturer of medium frequency heating equipment in China. It has been 20 years since its establishment. It has rich production experience and mature technology. For more information about this metal heat treatment equipment, you can consult FOREVER electromechanical customer service hotline.
Overseas manager: Tom Wang
Email:tom@foreverfurnace.com
Phone: 0086-13303078975(whatsapp, wechat,line)
Post time: 05-31-2022