[Three rain valve to recommend the star product - Mechanical seal] Description: Acoustic emission refers to internal or surface material deformation or damage as a result of a sudden release of strain can produce transient elastic waves. Some researchers also called acoustic emission stress wave emission (Stress Wave Emission, SWE). Mechanical seal dynamic and static ring are two core elements, dynamic and static ring face exposure to normal operation of the mechanical seal plays a decisive role. In the mechanical seal actual operation, since the end face of the force, thermal deformation and the influence of other interfering factors M74N-65 mechanical seal, can make contact with the end face mechanical seal circumstances change, cause a collision. When a collision occurs M74N-95 mechanical seal, the collision of the movement and stress wave emission elastically deformed ring that acoustic emission. Directly and fracture mechanisms of deformation of elastic wave source, often referred to as a typical acoustic emission sources. Fluid leakage, friction, impact, burning, and other non-magnetic domain wall running directly related to the deformation and fracture mechanisms Another acoustic emission source, known as the secondary acoustic emission source M74N-85 mechanical seal, mechanical seal face formed by friction AE source belongs to the latter. Acoustic emission signals having a large dynamic range, the displacement amplitude can be from 1 × 10 -15 m to 1 × 10 -9 m, has a range of variation of the order of 106; acoustic emission wave frequency range is very wide, from the secondary audio the audio until the ultrasound frequency, including several Hz to several MHz; its amplitude variations of the object from the micro to large macroscopic fracture dislocation. [Three rain valve to recommend the star product - Mechanical seal] Introduction: contact friction (dry friction). Appeared before the film between the seal faces, movement in direct contact with the ring face. When the sealing device starts low speed, less pressure between the end surface film has not yet formed, and thus direct contact between the static ring case Friction exists that dry friction. Acoustic emission signals generated by a strong dry friction, the specific performance of large amplitude oscillation more often. M74N-60 mechanical seal, Nanyang mechanical seal, M74N mechanical seal provided by the election of three rain Valve Co., Ltd. Tianjin three rain. Valve Co., Ltd. Tianjin three rain (www.tjsymf.com) (www.tjsymf.com) strong, credible, in Tianjin seal industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the three rain valve into the brilliant and you work for a better future!