CAJ | 학술논문

通过对某公司电站锅炉屏式再热器出口联箱泄漏的原因分析，表明泄漏原因是：联箱在长期高温高压应力环境下运行中，异种钢焊接焊缝产生微裂纹，不断扩展，最终导致在低周高应力环境下开裂泄漏，事后在检修过程中采用合理的补焊修复工艺，全过程质量监控，成功修复联箱部件。
통과대모공사전참과로병식재열기출구련상설루적원인분석，표명설루원인시：련상재장기고온고압응력배경하운행중，이충강한접한봉산생미렬문，불단확전，최종도치재저주고응력배경하개렬설루，사후재검수과정중채용합리적보한수복공예，전과정질량감공，성공수복련상부건。
Leakage occurred at the header of platen reheater in a company. After analysis, it is concluded that the reason for leakage is that welding seam cracked microly due to long-term operation under high temperature and high stress environment. The seam incessantly extend and finally ruptured in the low cycle and high stress cracking leakage force environment. Since reasonable repair welding technology was adopted in the the repair process, the faulty equipment was repaired successfully.