RELEASING PRESSURE-PAD Russian patent published in 2009 - IPC B21C35/06 B22F3/20 C22B9/20 

FIELD: metallurgy.

SUBSTANCE: invention relates to electrometallurgy and can be used for semicontinuous compressing of consumed electrodes from charge materials of titanium alloys and particularly, for cleaning of inner surfaces of solid of revolution. Releasing pressure-pad for cleaning of conic or conic-cylindrical inner surface of matrix for compressing of products is implemented in the form of swing turntables with curved working face, elastic displaced in radial direction and installed on axis located in case of releasing pressure-pad, supports, which restrict swing turntables, and resilient members; located between supports and swing turntables, herewith working face radius of curvature is changed from the minimal radius equal to minimal radius of curvature of treated inner surface of matrix, up to the maximal radius, equal to maximal radius of treated inner surface of matrix.

EFFECT: invention provides increasing of matrix life time and pressure pad ensured by stabilisation of compression mode, and opportune removing of "casing" from stuck metal improves melting characteristics of the electrode and increases structure smoothness of cast metal.

2 cl, 2 dwg