By the following, we come to understand the development process under the ring: R & D ring steps: by opening the Microsoft office tools designed to draw a good drawing, and then submit the magnet drawing to mold factory, mold production. Magnetic drawing development steps: customers can provide good painting drawings, plus or minus a tolerance ring must be indicated, as well as the requirements of characteristics data, in accordance with the drawings, mold manufacturing. Ring pattern development steps of: providing a model can come, it is the best way to develop, there is a model for clarity and magnetic characteristics of every corner, will follow the model shown drawings, mold production. Ring production process: ingredients → early vibration → sham burn → sanding → spray granulation Particle Size → stirring → forming → Production → baking → chamfering → wash mill → ultrasonic cleaning → sorting → final inspection → packaging and storage complete manufacturing processes. In fact, regardless of how the development of magnetic, must first draw the advantages of a good drawing ring, and then open the mold, good mold into the production line in the ring, these processes are environmentally Laird ring step by step, not be rushed, the most important Die size is consistent with the model or drawing, or open up a small ring mold can be changed, too large then scrapped. For mold this step must be carefully indeed. Turns select the whole bundle cable through a ferrite bead constitutes a common mode choke, if necessary, may also be in the ring on top of the cable around a few turns. The more turns, the lower frequency interference suppression, the better, the higher frequency noise while weak inhibition. In the actual project, according to the characteristics of the interference current frequency magnetic ring to adjust the number of turns. Usually when wide-band interference signals, you can set both on the cable ring, each surrounded by a different number of turns of the magnetic agent Laird ring, which can simultaneously suppress high frequency interference and low-frequency interference. Mechanism of action from the point of view of the common mode choke coil, the greater the impedance, the more obvious the effect of interference suppression. The common mode choke coil impedance from the common mode inductance Lcm = jwLcm, not difficult to see from the formula, the noise of a certain frequency, magnetic inductance bigger the better. But the reality is not the case, because the actual ring also parasitic capacitance, and its existence is parallel with the inductor. When faced with high frequency noise, the capacitor capacitance is small, the magnetic inductance of the short circuit, so that the common mode choke useless. Amorphous magnetic ring, ring, Xu Chong-electronic products factory by the Dongguan Shijie Xu Chong-electronic products factory provided. Dongguan Shijie Xu Chong-electronic products plant (chuangxs.1688.com) (www.chuangxs.1688.com) strong, credible, connectors, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xu Song Chong electronic products factory into the brilliant and you work for a better future!