Plasma-arc torch with gas cooled blow-out electrode

Details Plasma-arc torch with gas cooled blow-out electrode Plasma-arc torch with gas cooled blow-out electrode

1986-04-10

1988-05-31

Paschall, M. H.

Electric heating

Metal heating

By arc

219121PQ, 219 75, 219121PN, 219121PP, B23K 900

Patent

active

047483121

ABSTRACT:
A plasma-arc cutting torch housing defines a chamber which has an outlet at the end of the housing. The torch also includes an electrode in the chamber near the outlet and a provision in the chamber for separating the gas flowing towards the outlet of the housing into a primary gas flow adjacent to the electrode for generating a plasma and a secondary gas flow away from the electrode for cooling the torch and the workpiece. The electrode has a centrally disposed bore therethrough for conveying gas. An insert in the workpiece end of the electrode burns away so as to expose the essentially disposed bore therethrough, thereby automatically quenching operation of the plasma arc so as to minimize damage to the torch. In the preferred embodiment, the electrode has a stepped centrally disposed bore which stops short of the insert. In an alternate embodiment, the stepped bore extends through to the insert and accommodating insert bore. A generally cylindrical insulator is also provided for directing the primary and secondary gas flows.

REFERENCES:
patent: 3408518 (1968-10-01), Strupczewski
patent: 3450926 (1969-06-01), Kiernan
patent: 4059743 (1977-11-01), Esibian et al.
patent: 4311897 (1982-01-01), Yerushalmy
patent: 4558201 (1985-12-01), Hatch
patent: 4581516 (1986-04-01), Hatch et al.

Affiliated with

Also associated with

Rating

Plasma-arc torch with gas cooled blow-out electrode 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-arc torch with gas cooled blow-out electrode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma-arc torch with gas cooled blow-out electrode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1875865