Process and apparatus for composite electroplating a metallic material

An apparatus for composite electroplating a metal material, comprising:

• a container provided with a bottom having an inside surface and a side wall extending upward from the bottom, at least a portion of an inside surface of the side wall of the container being formed from a metal material and serving as a first electrode;
• means for spouting a composite electroplating liquid, connected to a supply source of the composite electroplating liquid containing ions of at least one metal and fine solid particles dispersed in the liquid, comprising at least one inlet pipe inserted upward into the container through the bottom of the container along the vertical axis of the container and having an upper end opening thereof, and a repulsing member arranged above and spaced from the upper end opening of the inlet pipe to form a gap between the upper end portion of the pipe and the repulsing member, through which gap the composite electroplating liquid is spouted against the inside surface of the bottom of the container;
• a second electrode formed from a metal material, arranged in the container, and facing the first electrode,
• and means for applying an electric current between the first electrode and the second electrode,
• an upward flowing path being formed between the first electrode and the second electrode, whereby the composite electroplating liquid spouted against the inside surface of the bottom of the container is allowed to flow upward therethrough.

An apparatus for composite electroplating a metal material, comprising:

• a container provided with a bottom having an inside surface and a side wall extending upward from the bottom, at least a portion of an inside surface of the side wall of the container being formed from a metal material and serving as a first electrode;
• means for spouting a composite electroplating liquid, connected to a supply source of the composite electroplating liquid containing ions of at least one metal and fine solid particles dispersed in the liquid, comprising at least one inlet pipe inserted upward into the container through the bottom of the container along the vertical axis of the container and having an upper end opening thereof, and a repulsing member arranged above and spaced from the upper end opening of the inlet pipe to form a gap between the upper end portion of the pipe and the repulsing member, through which gap the composite electroplating liquid is spouted against the inside surface of the bottom of the container;
• a second electrode formed from a metal material, arranged in the container, and facing the first electrode,
• and means for applying an electric current between the first electrode and the second electrode,
• an upward flowing path having a width of 5 to 400 mm being formed between the first electrode and the second electrode, whereby the composite electroplating liquid spouted against the inside surface of the bottom of the container is allowed to flow upward therethrough.