Sticking a layer of viscoelastic damping material with a certain thickness on the surface of the substrate, when the substrate vibrates in bending, the damping layer vibrates with the base, and the damping layer deforms in tension and compression to consume energy, thus playing the role of vibration reduction and noise reduction. Materials with this function are called free damping materials, or free damping for short.
Laminar hood is a kind of air purification equipment which can provide local high cleanliness environment. It is mainly composed of box, fan, air primary filter, damping layer, lamp, etc., and the shell is sprayed with plastic. The product can be hung and supported on the ground, with compact structure and convenient use. Can be used alone, or can be connected in multiple ways to form a strip-shaped clean area. Laminar flow hood is to make the air pass through the high efficiency filter at a certain wind speed to form a uniform flow layer, so that the clean air can flow vertically and unidirectionally, thus ensuring the cleanliness of the working area to meet the technological requirements. There are two kinds of clean laminar flow hoods, one is installed inside the fan, and the other is installed outside the fan. Laminar flow hood has two types: hanging type and floor type. Air passes through a high-efficiency air filter with a certain wind pressure through a fan, and the pressure is balanced by the damping layer. Clean air is sent into the working area in the form of vertical laminar flow, so as to ensure that the working area reaches the high cleanliness required by the process. Compared with clean room, laminar flow hood has the advantages of less investment, quick effect, low requirements for factory building construction, convenient installation and power saving. At present, it is widely used in precision machinery, electronics, pharmaceuticals, food, fine chemicals and other departments. The structure is more complicated than that of FFU, and it is a local purification device with low requirements on environmental conditions. Used to provide local high cleanliness, suitable for decoration projects, the overall requirements are not very high, only meet local requirements. It can be used alone or in parallel in a large area.
What is the function of damping layer in laminar flow hood? If in doubt, please contact Anhui people and Purification.