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该文对以乙丙橡胶EPM-50为基础用于输送生活饮用水及供热管道接头的橡胶密封件的材质、设计、结构、加工工艺及物理机械性能进行了综述。该密封件采用不同硬度双配方胶料,通过共硫化工艺制成。由于该产品涉及卫生保健问题,对橡胶与水接触的提取液进行了化学分析及卫生保健方面的鉴定。试验结果证明,橡胶密封件有50年的使用寿命。
In this paper, the material, design, structure, processing technology and physical and mechanical properties of rubber seals used for conveying drinking water and heating pipe joints based on ethylene propylene rubber EPM-50 are reviewed. The seal with different hardness double formula compound, made by co-curing process. Due to the health-care implications of this product, chemical analyzes and health care identification of extracts in contact with rubber and water were carried out. Test results show that rubber seals have 50 years of service life.