Stress Relaxation

Stress relaxation technologies ensure plant high reliabilities.

We are developing and using an enhanced IHSI (∑-100) to improve the residual stress mitigation effect and expand the scope of applications.

Flexible multi-coil ECT sensor
Stress Improvement by Hitachi Advanced IHSI(∑-100)

The outside of H7

CRD stub

Stress Relaxation of RPV Internals by Water Jet Peeting(WJP)