CAJ | 학술논문

通过对机械密封失效机理分析发现，导致焊接金属波纹管机械密封失效的原因都直接或间接地与波纹管有关，主要形式是波纹管失弹，其次是波纹管的破裂。试验研究表明，炼油厂焊接金属波纹管失弹的主要原因是：高温、缝隙沉积和过度压缩。
통과대궤계밀봉실효궤리분석발현，도치한접 금속 파문관궤계밀봉실효적원인도직접혹간접지여파문관유관，주요형식시파문관실탄，기차시 파문관적파렬。시험연구표명，련유엄한접금속파문관실탄적주요원인시：고온、봉극침적 화과도압축。
By means of analysis o n the failure mechanism for mechanical s eal，it is found that the reasons of caus ing mechanical seal failure of welded me tallic bellow tube relate to the bellow directly or indirectly．The main type is ealisticity-loss of bellow，and then is t he fracture of bellow．The testing shows that main reasons of ealsticity-loss for welded metallic bellow in refinery are high temperature，crevice deposition and excessive compression．