[특허]System and method of short circuiting arc welding

System and method of short circuiting arc welding 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23K-009/09
출원번호	US-0577105 (1990-09-04)
발명자 / 주소	Stava Elliott K. (Brecksville OH)
출원인 / 주소	The Lincoln Electric Company (Cleveland OH 02)
인용정보	피인용 횟수 : 57 인용 특허 : 0

초록 ▼

There is provided an improvement in a short circuiting arc welding system comprising a work station with a consumable electrode and workpiece, a D.C. power supply with a positive and a negative terminal, high frequency current control means for applying a welding circuit with a given time-based profile across the work station while the electrode is short circuited and while the electrode is spaced from the workpiece, a welding current circuit means including a first means for creating a first inductive reactance in series with the current control means and work station whereby the welding current follows the time-based profile in accordance with the first inductive reactance. The improvement comprises a background current circuit means between the power supply and the work station and in parallel with the current control means and first means for applying continuously a background current across the work station. This background current circuit means includes a second means for creating a second inductive reactance substantially greater than the first inductive reactance and a resistor means for controlling the background current flowing continuously from the power supply to the work station through the background current circuit means.

대표청구항 ▼

A method of short circuiting arc welding comprising the steps of: (a) providing a work station with a consumable electrode and a workpiece; (b) providing a D.C. power supply with a positive and a negative output terminal; (c) applying a welding current with a given time-based profile across said work station while said electrode is short circuited and while said electrode is spaced from said workpiece; (d) creating first inductive reactance in series with said current control means and said work station whereby said welding current follows said time-based profile in accordance with said first inductive reactance; (e) applying a constant and a continuous background current across said work station; (f) creating a second inductive reactance substantially greater than said first inductive reactance for driving said background current across said work station; and, (g) controlling the background current flowing continuously from said power supply to said work station through said second inductive reactance to a value between the range of 5-10 amperes.

이 특허를 인용한 특허 (57)

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