Structure type of damping treatment
Puzmai precision Aviation Equipment Co., Ltd. adopts advanced technical formula to develop and produce an environmental friendly green damping reinforcing sheet based on environmental butyl rubber. The damping sheet has excellent stability performance, stable performance in the operating range of - 50 ° ~ 180 °, no volatile odor, no degradation, and flame retardant function. The products can be customized into various density and color materials according to the needs of customers' use environment Material.

Damping sheet is a kind of thin sheet made of damping material. The reinforcing sheet is also called mastic or damping block. It is a kind of viscoelastic material attached to the inner surface of the steel plate of the car body. It clings to the steel plate wall of the car body and plays the role of reducing noise, reducing vibration and increasing the strength of the metal plate. That is to say, when it comes to damping and reinforcing, the scientific name is also called reinforcing sheet. All cars are equipped with damping plates, such as Mercedes Benz, BMW and other brands of cars. It is widely used in aerospace vehicles, aircrafts, ships, air conditioners, refrigerators, etc. damping plates are also used in other machines that need shock absorption and noise reduction. In the automotive industry, the use of damping materials enhances the car's airtightness, reduces vibration, reduces noise, and improves the car's comfort.
The damping and strengthening products of putsmier Aviation Precision Equipment Co., Ltd. use butyl rubber composite metal aluminum foil to form the damping rubber material for vehicles, which belongs to the category of damping and damping. The high damping property of butyl rubber makes it a damping layer to reduce the vibration wave. Generally, the sheet metal material of vehicles is thin, which is easy to produce vibration when driving, driving at high speed and bumping, and after reduction After shock absorption and filtering, the wave shape changes and weakens, achieving the purpose of reducing noise. It is a widely used and efficient green environmental protection material for automobile sound insulation, noise reduction and shock absorption. Passenger cars use putsmier damping plates to greatly improve the noise and odor problems. At present, it has been successfully used in Wuling and general motors in China, replacing the traditional asphalt as damping The non environmental protection products of materials and other markets are further expanding, greatly improving the negative problems of odor and noise of passenger cars in the market, which are well received by customers and users.

Damping is widely used in passenger cars for effective damping and noise reduction
Flame retardant and damping combustion persistence of putsmier

Putsmier environmental protection damping has excellent fire-retardant performance. The damper is attached to the steel plate at an angle of 45o with the horizontal plane. The gas burner flame is aimed at the center of the sample, so that the top of the flame just contacts the surface of the sample. In this state, it is kept for 10 s, then it is far away from the flame and placed in the vertical state. Observe whether the sample can self extinguish within 2 s. Test three groups of samples, all of which are qualified, and the test results confirm that putsmier damping sheet has excellent flame retardancy.
Constrained damping structure of putsmier
When the damping material is bonded between the structure and the metal constraint plate, a constrained damping structure is formed. When the structure surface vibrates, it will produce bending deformation. Because of the suppression of the metal constraint plate, the damping material will produce a large shear deformation in the two-layer elastic plate. The deformation per unit area is far more than the deformation of the free damping layer, and its loss factor is much higher Ti can reach about 0.5, which can reduce the dynamic amplification factor of the structure by 2? 10 times. The figure below shows this structure.