Pressure test tool and method for narrow closed oil cavity of piston rod with double-layer welding structure

The invention discloses a pressure test tool and method for a narrow closed oil cavity of a piston rod of a double-layer welding structure. Comprising a main hoop, an auxiliary hoop, a fastening bolt pair, a plug assembly and a pressure test joint. The main hoop and the auxiliary hoop are arranged o...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU HONGHONG, LIU YANMIN, GAO WEI, ZHANG ZHIYONG, MA TAO, LIANG YANHUA, ZHANG YAN, WANG QI, CHENG GAOFENG, LI XUEQUN, ZHAO JUN, LIANG ZHILI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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