Vibration damping rubber soft joints material and function

The new materials such as eccentric vibration damping rubber joint, high wear resistance and high fatigue resistance martensite ageing eccentric vibration damping rubber joint, ultra-low temperature, non-magnetic ultra-high strength eccentric vibration damping rubber joint, ferritic ageing eccentric vibration damping rubber joint are the main points of future research and development. After the study of the toughness mechanism, corrosion resistance mechanism and wear resistance mechanism. General eccentric vibration damping rubber soft joints have low precision: uneven wall thickness, low brightness of the inner surface of the tube, high cost of sizing, and pockmarks and black spots on the inner surface are not easy to remove; it shows its superiority in high pressure, high strength and mechanical structure materials.
 
It is a kind of high alloy steel that can resist corrosion in the air or chemically corrosive medium. The eccentric shock-absorbing rubber soft joint is a kind of steel with beautiful appearance and good corrosion resistance, which does not need to be treated by color plating and other appearance treatments, but plays the inherent appearance function of eccentric shock-absorbing rubber soft joint and is used in many aspects, usually called eccentric shock-absorbing rubber soft joint. From the metallographic point of view, the eccentric vibration damping rubber joint contains chromium and the appearance constitutes a very thin chromium film, which separates it from the oxygen invaded by the steel and has the effect of corrosion resistance. In order to maintain the inherent corrosion resistance of eccentric vibration damping rubber joints, it is necessary for the steel to contain more than 12% chromium. 310S eccentric vibration damping rubber joints are suitable for making various furnace components with a maximum working temperature of 120 ℃ and a continuous operating temperature of 90 ℃.
 
If the eccentric shock absorbing rubber joint does not reach the extension, the product is easy to crack and pull through when processing deep-drawn products. General eccentric shock-absorbing rubber joints to be used in addition to the DDQ use of materials, this material is characterized by relatively low elongation (≧ 45%), and relatively high hardness (≦ 180), internal grain size grade between 8.0 ~ 9.0, compared with the DDQ with materials, its deep punching function is relatively slightly poor, it is mainly used for products that can be obtained without stretching, that is, BQ sex is relatively good, which is the primary Because of its slightly higher hardness reason.
Generally speaking, the eccentric shock absorbing rubber soft joint products are different, and their requirements for thickness pressure of eccentric shock absorbing rubber soft joint are also different, the thickness pressure is generally required to be higher, -3~5%, while the thickness pressure of a class of tableware is generally required to be -5%, the steel pipe class is required to be -10%, the thickness pressure of the material used for hotel cooler is required to be -8%, and the distributor's requirements for thickness pressure are generally between -4% and 6%. At the same time, the difference of the product table inside and outside of the sales will also lead to the different thickness pressure requirements of customers for eccentric vibration damping rubber soft joints. Generally, the thickness pressure requirements of export customers are higher, while the thickness pressure requirements of domestic enterprises are relatively low (mostly due to cost considerations), and some customers even require -15%.