FIELD: electric-contact roller welding-on of ferromagnetic powders, possibly restoration of worn surfaces and strengthening of working surfaces of parts such as bodies of revolution.
SUBSTANCE: apparatus includes roller type electrode, part rotation drive unit, mechanism for forcing electrode and mechanism for moving it, welding transformer, powder metering hopper. Secondary winding of transformer is made with possibility of connection to electrode and to part. Hopper is provided with electromagnetic valve. Winding of said valve is connected in parallel to secondary winding of welding transformer.
EFFECT: improved quality of welding-on due to stabilized heating condition and stable deformation of powder material providing constant density and strength of welded-on layer.
1 dwg
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