Patent · US Expired

Burner for wig welding

US4617444A · kind A · utility

7Cited by

4References

7Claims

0Family size

Assignee

Kraftwerk Union Aktiengesellschaft · DE

Inventors

Gerhard Engelhard · Erlangen, DE
Dieter Pellkofer · Herzogenaurach, DE
Jürgen Böhm · Obertshausen, DE
Siegfried Forner · Erlangen, DE

Key dates

Filing date	Apr 1, 1985
Grant date	Oct 14, 1986
Priority date	—
Expiry date	Apr 1, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K9/167
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A burner for WIG-welding for a welding seam having a rod-shaped tungsten electrode with an electrode tip facing the welding seam, a welding wire guide and a protective-gas feed includes a coolant line connected to the electrode and formed of two adjacent channels extending as feed and discharge lines on mutually opposite sides of the electrode, the electrode tip projecting through a heat-resistant insulating cap overlapping ends of the coolant channels which face towards the electrode tip, and the protective-gas feed including protective-gas feed lines insulatedly fastened to a side of the coolant channels facing away from the electrode, the protective-gas feed lines having a region extending out of the insulating cap and formed with outlet openings directed towards the welding seam.

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