METHOD AND DEVICE FOR MEASURING HYDRIDATION RESISTANCE OF TUBES AND TUBULAR CLADDINGS
摘要
The method involves measuring hydrogen permeation in the tubes by mass spectrometry, wherein the tube is inserted into a high or ultrahigh vacuum device in which a mass spectrometer and a total pressure gauge are located. H2 or H2 and inert gas mixtures are circulated inside the tube at the required partial pressure. The tube is then heated and the appearance of H2 outside the tube is observed. The flow thereof inside the tube and its emergence time, called permeation time, are determined based on permeation curves. The emergence time of the first microcrack is also determined. <IMAGE>
申请公布号
EP1326069(A1)
申请公布日期
2003.07.09
申请号
EP20010969815
申请日期
2001.09.14
申请人
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS;IBERDROLA
发明人
SACEDON ADELANTADO, JOSE, LUIS;SANTAMERA GAGO, EDUARDO;DIAZ MUNOZ, MARCOS;MOYA CORRAL, JOSE, SERAFIN;ROMAN GARC A, ELISA;PEREZ RAMIREZ, ANGEL, SAMUEL;REMARTINEZ ZATO, BEGONA