Method for sealing high-temperature heat pipe

Method for sealing high-temperature heat pipe

A method for sealing a high-temperature heat pipe includes: (1) necking and reducing two ends of the heat pipe separately, so as to obtain a necked end and a reduced end; (2) sealing the necked end by laser welding or electron beam welding; (3) placing the heat pipe in an inert gas glove box, and po...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: He, Zicong, Zou, Jinhu, Wan, Zhenping, Tang, Yong, Lu, Longsheng
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBINED OPERATIONS
HEAT EXCHANGE IN GENERAL
HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
HEATING
LIGHTING
MACHINE TOOLS
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OTHER WORKING OF METAL
PERFORMING OPERATIONS
TRANSPORTING
UNIVERSAL MACHINE TOOLS
WEAPONS
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Beschreibung
Zusammenfassung:A method for sealing a high-temperature heat pipe includes: (1) necking and reducing two ends of the heat pipe separately, so as to obtain a necked end and a reduced end; (2) sealing the necked end by laser welding or electron beam welding; (3) placing the heat pipe in an inert gas glove box, and pouring a working medium without impurities into the heat pipe; (4) heating the heat pipe, connecting the reduced end to a vacuum pump, pumping gas inside the heat pipe by the vacuum pump to vacuumize the heat pipe, such that pressure in an inner cavity of the heat pipe reaches a target pressure, and flattening the reduced end; and (5) sealing an opening of the flattened reduced end by electron beam welding or laser welding, so as to obtain the high-temperature heat pipe.