In Japan, from the heat resistance and the steam resistance and the radiation resistance when the severe accident occurs, the sealing material of the containment vessel is instead to the silicone rubber, have come to adopt the EPDM rubber called “improved EPDM rubber“. However, the compression set test to be evaluated for sealing properties, rubber gaskets changing the timing of radiation that its behavior is changed has been suggested. Therefore, for the “improved EPDM rubbers (EP-176)“, we performed...
英字タイトル:
Behavior of compression set due to a change in temperature of the containment vessel for improved EPDM rubber (EP-176)

The sealing material of the containment vessel has been adopting improved EPDM rubber instead of silicone rubber from heat resistance, steam resistance, radiation resistance at severe accident. In order to evaluate the sealing performance of the improved EPDM rubber (EP-176), the steam seal test was conducted under a severe environment than the currently assumed severe accident. For the improved EPDM rubber (EP-176), we have found that the limit of sealing performance as O-ring is 300 ° C, 336 hours or ...
英字タイトル:
Limited sealing property of improved EPDM rubber (EP-176) for containment vessel in high temperature and steam environment

In Japan, the sealing material of containment vessel is using silicone rubber. Silicone rubber has a high heat resistance and radiation resistance. In recent years, at the time of severe accidents, containment vessel is not only a gas containing a high temperature of radioactive materials has been found that the steam is also filled. However, silicone rubber is not high steam resistance. Overseas, containment vessel for rubber has also been adopted EPDM rubber. We therefore, for the silicone rubber and...
英字タイトル:
High temperature and steam sealing property of the containment vessel for improved EPDM rubber (EP-176)