上海淞江减震器集团有限公司介绍：德标DN80耐油橡胶补偿器信息，淞江集团为众多企业提供德标DIN橡胶补偿器标准的产品，法兰全部采用碳钢材质，橡胶采用天然橡胶，以下是详细介绍。
NBR具有优异的耐油性。丁二稀单体可共聚成顺式、反式和1,2-焼基三种不同的链结构。典型的NBR结构中反式占约78%。由于NBR分子链结构中含有氰基,耐油性(如耐矿物油、液体燃料、动植物油和溶剂)优于天然橡胶、氯丁橡胶和丁苯橡胶。与其他橡胶相比NBR有更宽域的使用温度,它的长期使用温度为120oC，同时NBR具有良好的耐低温性能,最低玻璃化温度可达-55oC。
橡胶补偿器（又称橡胶膨胀节、橡胶伸缩节、可曲挠橡胶接头、减振器、管道减震器、避震喉、软接头），一般是由两端带橡胶凸缘的光滑波形补偿元件与金属法兰组成。金属法兰常采用松套结构。波形补偿元件表面为橡胶，内层为数层强力纤维或钢带（丝）等加强夹层一直延伸到两端的橡胶凸缘，凸缘内有硬钢丝骨架。
Shanghai Songjiang shock absorber Group Co., Ltd. introduction: German standard DN80 oil resistant rubber compensator information, Songjiang group for many enterprises to provide German standard DIN rubber compensator standard products, flange all use carbon steel, rubber uses natural rubber, the following is a detailed introduction.
NBR has excellent oil resistance. Butadiene monomer can be copolymerized into cis -, trans – and 1,2-hydroxy groups. About 78% of the typical NBR structures are trans. Due to the presence of cyano group in NBR molecular chain structure, the oil resistance (such as mineral oil resistance, liquid fuel resistance, animal and vegetable oil resistance and solvent resistance) is better than that of natural rubber, chloroprene rubber and styrene butadiene rubber. Compared with other rubbers, NBR has a wider range of service temperature. Its long-term service temperature is 120oc. At the same time, NBR has good low temperature resistance, and the minimum glass transition temperature can reach – 55oc.
Rubber compensator (also known as rubber expansion joint, rubber expansion joint, flexible rubber joint, shock absorber, pipe shock absorber, shock absorber, flexible joint) is generally composed of smooth wave compensation element with rubber flange at both ends and metal flange. Loose sleeve structure is often used for metal flange. The surface of the wave compensation element is rubber, and the inner layer is several layers of strong fiber or steel strip (wire) and other reinforcing interlayers extending to the rubber flange at both ends, and there is a hard steel wire framework in the flange.
