Patent · US Expired

Device for arc welding, in particular submerged-arc welding, with one or several fusible electrodes

US4584457A · kind A · utility

10Cited by

3References

4Claims

0Family size

Assignee

Thyssen Aktiengesellschaft vorm August Thyssen-Hutte · DE

Inventors

Ulrich Dilthey · Unterschleißheim, DE
Ulrich Plantikow · Düsseldorf, DE
Walter Kopp · Taufkirchen, DE

Key dates

Filing date	Jun 20, 1984
Grant date	Apr 22, 1986
Priority date	—
Expiry date	Jun 20, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K9/0735
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A device for arc welding having one or more fusible electrodes (15) which are in each case supplied from an alternating-current source (14) having a falling characteristic. The feed rate of the electrode (15) is regulated for constant arc length as a function of the arc voltage. Via a further regulator (37), the deposition efficiency is regulated by supplying the regulator (37) with the feed rate as actual value and changing the welding-current intensity as a function of this value. The change in welding-current intensity leads to an increase or decrease in arc length which, in turn, is compensated via the first regulator by changing the feed rate.

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