Patent · US Active

Cored wire electrode

US8963047B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Boehler Schweisstechnik Austria GmbH · AT

Inventors

Gerhard Posch · Unterhaching, DE
Guenter Moitzi · Kobenz, AT
Michael Fiedler · Munich, DE
Franz Rotter · Portland, US
Walter Berger · Overland Park, US

Key dates

Filing date	Mar 8, 2010
Grant date	Feb 24, 2015
Priority date	—
Expiry date	Dec 27, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/04
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a tubular cored electrode for producing a high-strength fusion-welded connection and relates to a method for producing tubular cored electrodes with a diameter of less than 2 mm. In order to avoid an oxidation and water absorption of the filler flux and to retain the original thermal reaction potentials of the mineral constituents thereof, according to the invention the tubular cored electrode is characterized in that the cold formed metal tube has in the longitudinal direction a tight fusion welded connection or a weld seam, which has a smaller weld penetration than corresponds to the tube wall thickness and in this manner a spacing of the metal bond of the tube wall towards the flux core is formed.

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