Plasma torch with power supply for equalizing wear to prolong th

Details Plasma torch with power supply for equalizing wear to prolong th Plasma torch with power supply for equalizing wear to prolong th

1994-04-25

1995-02-28

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912154, 21912157, 219123, B23K 1000

Patent

active

053939549

ABSTRACT:
The plasma torch (10; 11, 12, 14) comprises an electrical power supply (20) with an arc circuit (21) and a coil circuit (22) which are mounted in series and with means (30) for controlling the level of the current flowing in the coil (22) consisting, inter alia, mounted in parallel with this coil (14), of a chopper consisting of a battery of capacitors (31) and of at least one electronic power switch (32) which may be placed distant from the coil. The electronic switch is preferably of the thyristor diode (321, 322) type, with a resonant turn-off circuit (31, 323).
A variant of this chopper uses at least one electronic switch of the GTO thyristor type, controllable in triggering and in switching off, or at least one conventional thyristor equipped with an auxiliary extinction circuit.
Application to high-power torches, for industrial, for example metallurgical, use.

REFERENCES:
patent: 3102946 (1963-09-01), Fonberg
patent: 4535225 (1985-08-01), Wolf et al.

Affiliated with

Also associated with

Rating

Plasma torch with power supply for equalizing wear to prolong th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plasma torch with power supply for equalizing wear to prolong th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma torch with power supply for equalizing wear to prolong th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-849815