Rubber Damping Sheet Extruder

螺杆数：

多螺杆

功率：

132

螺杆型号：

65/150

& The damping plate can be made into various shapes and thicknesses according to the user's needs. It can be laid directly on the body steel plate of flat parts such as the car floor and spare tire compartment. It will be plasticized as the paint dries and can be solid after cooling. Groundly bonded to base plates of different shapes, with excellent conformability. It has the advantages of simple construction, suitable for assembly line operations, no environmental pollution, easy to ensure thickness, and high bonding strength. It is a vibration-absorbing, noise-reducing, anti-corrosion and heat-insulating material that must be used in cars, commercial vehicles, buses and various trucks.
, product performance
Corrosion resistance (salt spray test): The film is not allowed to undergo differentiation
Adhesion on the base plate/falling ball test:
At ℃: The sample is not allowed to peel off from the board
At (&) ℃, hot and humid climate treatment: the sample is not allowed to peel off from the board
Pit test: no pits are produced
Flame retardant Property: &/
Damping factor:
℃&.
℃&.
When the thickness is: ℃&.
℃&.
℃& .
℃&.
℃&.
Instructions for use:
Before the top coat or mid-coat, lay the product on the application site and let it dry with the paint. Bake and plasticize, and after cooling, it will be firmly bonded to the base plate.
, product specifications:
Thickness: according to user needs.
Dimensions: Made according to user needs and drawing requirements.
Plasticizing temperature: It can be adjusted between ℃ and ℃ according to the paint drying temperature of the user's coating production line.
, Storage:
The product should be stored in a dry and ventilated warehouse at an ambient temperature of ~℃, away from rain, away from heat sources, and away from direct sunlight to avoid deformation. Storage period months.
Damping pads are widely used in automobile shock absorption technology. Damping and vibration reduction technology achieves the purpose of vibration reduction by attaching high damping materials to the surface of structural parts and dissipating the energy of structural parts. This method does not change the sound radiation characteristics of the structural component, but can effectively control its vibration level, thereby reducing noise.
Damping pads generally include asphalt damping pads and rubber damping pads. The former uses asphalt as the main material, and is a mixture formed by adding rubber, fiber, etc. Currently, there are ordinary, self-adhesive and hot-melt damping pads, which are used in parts such as body floors and cowl panels, and are melted and cooled in a coating drying room. Then it is bonded to the body sheet metal structure. Asphalt damping pads are placed directly on the body sheet metal structure and melted into shape during the painting process. There is no special fixing device for the damping pad on the car. Therefore, when applying the damping pad on some vertical boards or slopes, it is necessary to add magnetic powder and apply sticky glue to the joint surface of the damping pad and the sheet metal structure to pre-fix the damping pad on the car body. forming position. Rubber damping pads are made of rubber as the main material and mixed with epoxy resin and other materials.
Asphalt damping pad is a good vibration-absorbing material, with more fiber material in the horizontal direction inside it. When the sheet metal structure vibrates, due to the crisscross arrangement of fiber materials, internal friction must absorb a considerable amount of kinetic energy, thereby achieving the effect of vibration reduction and damping. Rubber damping pads rely on their own viscoelasticity to dampen and reduce vibrations of the structure. They consume part of the vibration energy through the viscous internal friction between rubber molecular chains and weaken the vibration of the sheet metal structure.
Asphalt damping mats are widely used on the R’s interior floor, wheel bags and front panel. From a technological perspective, adding an air outlet to a larger damping pad can avoid the phenomenon that the gas generated during the melting process of the damping pad cannot be discharged in time and is bound between the damping pad and the sheet metal structure, affecting the bonding and vibration reduction effects. .
Generally, the largest noise transmitted into the car is engine noise. From the perspective of noise reduction, special attention must be paid to the sound insulation and sound absorption design of the front wall. When designing the front apron, a cavity structure should be designed between the inner and outer panels. Micro-expansion damping materials can be placed inside these cavities and cured after high-temperature coating to form a constrained damping structure together with the adjacent sheet metal structure to better isolate the mid- and low-frequency noise of the engine from being transmitted into the car. In addition, the front wall generally uses more sound insulation and sound-absorbing materials to isolate engine noise
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