ブローホール中ガスの分析装置の開発と応用

抄録

A new apparatus to determine the composition of gas in blow-holes in steel has been developed. A steel specimen is pierced in a vacuum vessel by means of a drill which is driven by a motor placed outside the vessel. The vacuum vessel is directly connected with a quadrupole mass spectrometer which analyzes the released gas from blow-holes.
It is demonstrated that analysis of the gas in cavities in steel using the new apparatus has assisted in the investigation of the origin of the cavities.