IP Library › Patent Application 17722373
Patent Application
App. No. 17/722,373

DEVICE FOR ARC WELDING AND METHOD OF IMPLEMENTING THE SAME

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Quick Facts
Patent No.
US None
App. No.
17/722,373
Abstract

Methods and devices for welding arc ignition and, more particularly, to ionizing an area of a contact between an electrode and articles to be welded. Methods and devices for igniting an arc discharge and welding.

Claims (26)

1 . A method of igniting an arc discharge and welding thereby; said method comprising steps of:

a. providing a device for igniting an arc discharge and welding thereby; said device comprising:

i. a power supply further comprising a power transformer;

ii. igniting and stabilizing means further comprising connected in series a high-frequency generator and a resonant circuit

b. output terminals connectable to an electrode and a welding stand; said power supply and said ignition means are connectable to said output terminals in parallel manner;

c. a control unit preprogrammed to ignite said arc discharge and maintain stability of said arc discharge during said welding;

b. placing articles to be welded onto said welding stand;

c. connecting said electrode and welding stand to said output terminals;

d. contacting said electrode with at least one of said articles to be welded;

e. applying a high-frequency voltage generated by said generator to said electrode;

f. applying a welding voltage from said power transformer to said electrode;

wherein said step of applying a welding voltage is performed with a predetermined delay relative to said step of applying a high-frequency voltage.

2 . The method according to claim 1 , wherein said step of providing said device for igniting an arc discharge and welding thereby comprises providing said power supply and igniting and stabilizing means further comprising a power rectifier and a high-frequency rectifier, respectively.

3 . The method according to claim 1 , wherein said power transformer has an open-circuit output voltage ranging between 30 and 32V.

4 . The method according to claim 1 , wherein said high-frequency voltage is a rectangular voltage ranging between 40 and 60V at frequency ranging between 35 and 40 kHz and power ranging between 250 and 300 W.

5 . The method according to claim 1 , wherein said predetermined delay is in a range between 1 and 2 sec.

6 . A device for igniting an arc discharge and welding thereby; said device comprising:

a. a power supply further comprising a power transformer

b. igniting and stabilizing means further comprising connected in series a high-frequency generator and a resonant circuit;

c. output terminals connectable to an electrode and a welding stand; said power supply and said ignition means are connectable to said output terminals in parallel manner;

d. a control unit preprogrammed to ignite said arc discharge and maintain stability of said arc discharge during said welding;

wherein said control unit is preprogrammed to apply said welding voltage from said power transformer to said electrode with a predetermined delay relative to applying a welding voltage from said power transformer to said electrode.

7 . The device according to claim 6 , wherein said power supply and igniting and stabilizing means comprising a power rectifier and a high-frequency rectifier, respectively.

8 . The device according to claim 6 , wherein said power transformer has an open-circuit output voltage ranging between 30 and 32V.

9 . The device according to claim 6 , wherein said high-frequency voltage is a rectangular voltage ranging between 40 and 60V at frequency ranging between 35 and 40 kHz and power ranging between 250 and 300 W.

10 . The device according to claim 6 , wherein said predetermined delay is in a range between 1 and 2 sec.