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OwnerNikolai M. Tarasov, Nikolai A. Varukha +6inventors
InventorsNikolai M. Tarasov, Nikolai A. Varukha, Rostislav L. Brontman, Boris A. Slesarev, Anatoly M. Zhukov, Valery V. Mizik, Evgeny P. Rogachev, Nikolai I. Gurnov
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An apparatus for electric-arc gas-shielded surfacing by droplets with consumable electrode calls for an electrode to be fed through a current contact tip to the surface of an article being surfaced. An arc is ignited to form a molten droplet on the end of the electrode, and a shielding gas is fed into the melting zone. Subsequently, an accelerating translatory motion is imparted to the current contact tip and the electrode until they reach a speed at which the kinetic energy of the molten droplet exceeds the energy sufficient for detaching the droplet from the electrode, whereafter the tip and the electrode are stopped by a fixed barrier so that inertia causes the droplet to detach from the electrode. The apparatus includes an electrode feeding mechanism, a nozzle, a drive for imparting accelerating translatory motion, a fixed barrier arrester, an electrode holder, clamping members and a pusher.
An apparatus for electric-arc gas-shielded surfacing of an article by droplets with a consumable electrode having an electrode melting zone, comprising feeding means for feeding said consumable electrode to a surface of the article being surfaced, and a body wherein there are mounted a nozzle having a cavity provided with an inlet pipe for supplying a shielding gas into the cavity of said nozzle, and having an opening adapted for directing said shielding gas into the electrode melting zone, a current contact tip introduced into said nozzle and provided with an aperture for the electrode to pass through, and drive means for translatory moving the current contact tip with acceleration relative to the nozzle in the direction of the surface of the article, said apparatus further comprising arrester means for stopping the movement of the current contact tip while the current contact tip is moving relative to the nozzle, and electrode holder means for clamping the electrode with the molten droplet and imparting to said electrode and the current contact tip an accelerating translatory motion relative to the nozzle, said electrode holder means having a sleeve rigidly connected to the current contact tip and said drive, and clamping members disposed within said sleeve, and pusher means connected to the electrode feeding means and mounted on the clamping members for pushing the clamping members.
Dependencies are inferred from the claim text.