[Three rain valve to recommend the star product - Mechanical seal] Description: Rake vacuum drying process and equipment characteristics were analyzed for a model with 320 mm shaft diameter vacuum rake dryer, for example, the design of its seal structure explore the rinse solutions and friction, auxiliary sealing and structural parts selection. Simulate actual working conditions for running test prototype design of M74N-55 mechanical seal, the results show that the sealing structure sealing effect is good. [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 of mechanical seal, dynamic and static ring face exposure to work on 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-53 mechanical seal, can make face contact conditions change M74N-43 mechanical seal, causing the collision. When a collision occurs, the collision of the static ring to produce stress wave emission, i.e., the acoustic emission is elastically deformed. 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, sound mechanical seal face friction emission sources are formed after person. 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. M74N-53 mechanical seal mechanical seal manufacturers _ selected three rain (certified) _ Guilin mechanical seal is provided by three rain Valve Co., Ltd. of Tianjin. Valve Co., Ltd. Tianjin three rain (www.tjsymf.com) (www.tjsymf.com) is a leader in Tianjin, seals, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In three rain valve leadership with the staff warmly welcome all inquiries negotiations to create three rain valve a better future.