Miniature bearing ring out to break the principle

Bearing parts demagnetization widely used ac demagnetization method. Ac demagnetization method is actually a process of repeated magnetization, namely with residual magnetism of bearing parts in the alternating magnetic field have been an increasing amplitude and changing the direction of the magnetic field, so that the weakening of the residual magnetism on the bearing parts to a minimum. The main source of the residual magnetic is the use of magnetic fixture parts processing. In addition, there are the following sources (1) the parts in the processing of the violent vibration and the role of internal stress will produce residual magnetism, (2) work with residual magnetic clamp mold itself magnetization parts. The influence of the three (3) grid. Ring of demagnetization method ring demagnetization method has two kinds of instant demagnetization and demagnetization for many times. ( 1) Instant demagnetization instant demagnetization is refers to the workpiece on the grinding machine immediately after magnetization demagnetization a demagnetization method three advantages: can avoid the residual magnetic aging; Can avoid repeating the magnetization and the formation of a complex influence; For instant demagnetization demagnetization magnetic parts can directly on the magnetic chuck, can in the blanking parts of the grinding machine installed a demagnetization device for demagnetization ( 2) Many demagnetization much demagnetization is repeated with a group of products are a demagnetization method repeatedly demagnetization of demagnetization must pay attention to the bearing can not be from beginning to end in the same state, so not many times the effect of demagnetization 4. Demagnetization for attention of (1) when the demagnetization goods should not be piled up together. (2) should make product axis and demagnetization machine vertical lines. (3) products leave the demagnetization machine speed should be as slowly as possible