Abstract: A method of forge welding includes placing at least two components for welding together, adjacent each other and with an exothermic flux mixture placed between the components. The exothermic flux mixture is heated to initiate an exothermic reaction and the faying surfaces of the two components are pressed together. The components being welded may be tubular, in particular pipes. Apparatus for the method of forge welding and exothermic flux mixtures for the method of forge welding are also provided.
Type:
Grant
Filed:
February 22, 2013
Date of Patent:
February 7, 2017
Assignee:
TUBEFUSE APPLICATIONS B.V.
Inventors:
Wayne Rudd, Hu Chun Yi, Jeremy Joseph Iten
Abstract: A method of forge welding includes placing at least two components for welding together, adjacent each other and with an exothermic flux mixture placed between the components. The exothermic flux mixture is heated to initiate an exothermic reaction and the faying surfaces of the two components are pressed together. The components being welded may be tubular, in particular pipes. Apparatus for the method of forge welding and exothermic flux mixtures for the method of forge welding are also provided.
Type:
Application
Filed:
February 22, 2013
Publication date:
January 22, 2015
Applicant:
TUBEFUSE APPLICATIONS B.V.
Inventors:
Wayne RUDD, Hu Chun YI, Jeremy Joseph ITEN
Abstract: An exothermic reaction mixture for joining metallic components includes at least one transition metal oxide and, as fuel, a mixture of aluminium and calcium suicide, wherein the molar ratio of aluminium to calcium suicide is from 16:1 to 0.25:1. Methods of preparing the exothermic reaction mixtures and for using them in welding applications are also described.
Type:
Application
Filed:
October 23, 2009
Publication date:
March 15, 2012
Applicant:
TUBEFUSE APPLICATIONS B.V.
Inventors:
Wayne Rudd, Allison Rudd, Diane Hopper, Hu Chun Yi
Abstract: Tubular ends are heated to a predetermined temperature above 1200 degrees Celsius and surrounded by a shield gas when the tubular ends are pressed together to form forge welded tubular ends. The forge welded tubular ends are then cooled down rapidly from said temperature above 1200 to at most 600 degrees Celsius within 3 minutes after the forge welding operation.
Type:
Grant
Filed:
November 7, 2006
Date of Patent:
August 17, 2010
Assignee:
Tubefuse Applications B.V.
Inventors:
Mark Wilson Anderson, Johannis Josephus Den Boer, Anthony Thomas Cole, Klisthenis Dimitriadis, Jan Erik Vollebregt, Djurre Hans Zijsling