Patent · US Expired

Fixture for explosively welding a tube to a tubesheet

US4641774A · kind A · utility

3Cited by
9References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 3, 1985
Grant dateFeb 10, 1987
Priority date
Expiry dateJul 3, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49806
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A fixture for explosively welding a tube to a tubesheet in which a plug extends within a cup which in turn is inserted into a fixture tube. A first explosive extends within the chamber defined by the cup and the plug and a second explosive extends within a bore defined within the plug. The sensitivity of the second explosive is greater than that of the first explosive so that, upon detonation by an externally actuated elongated detonation member, sequential detonation of the second explosive and the first explosive occurs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.