Electric heating – Metal heating – By arc
Patent
1993-06-07
1994-01-11
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912148, 21912145, 21912155, 219 75, B23K 1000, B23K 1002
Patent
active
052783880
ABSTRACT:
A plasma welding and cutting gun for discharging plasma gas with constant outlet pressure includes a gun body having a negative-electrode jacket for directing welding and cutting gas into the gun, a core tube through which the gas flows through a gas outlet of the negative-electrode jacket disposed around the core tube and then discharged through a nozzle secured to a lower portion of the gun body, and a positive-electrode sleeve secured to an outer portion of the gun body and connected to the nozzle, wherein the nozzle serves as a positive-electrode terminal and the gas directed into a passage between the nozzle and a negative-electrode terminal secured to a lower portion of the negative-electrode jacket will be ionized by an arc formed between the nozzle and the negative-electrode terminal, and then discharged through the nozzle to form plasma arc of high temperature and high velocity for welding and cutting a work piece, and wherein an over-pressure relief valve is provided between the core tube and negative-electrode jacket for discharging a gas streamflow through a by-pass gas discharge passage when a main gas streamflow having its pressure exceeding a pre-determined constant pressure, thereby keeping a constant gas pressure for the plasma main gas streamflow in order to enhance the stability and quality of plasma welding and cutting.
REFERENCES:
patent: 4973816 (1990-11-01), Haberman
patent: 5132512 (1992-07-01), Sanders et al.
patent: 5216221 (1993-06-01), Carkhuff
LandOfFree
Plasma welding and cutting gun for discharging plasma gas with c 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 welding and cutting gun for discharging plasma gas with c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma welding and cutting gun for discharging plasma gas with c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1633014