The invention provides a device for forming a light-selective absorbing
coating on the surface of a wide-format
metal base strip, which includes a
coating tank with a first aluminum strip inlet and a first aluminum strip exit on opposite sides, and the
coating tank is divided into two parts. It is a sub-slot and a mother slot. The sub-slot is placed slightly above the mother slot. On the opposite sides of the sub-slot, corresponding to the first aluminum strip entrance and the first aluminum strip exit, the second aluminum strip entrance and the second aluminum strip entrance are also provided. Two aluminum strip outlets; it also includes a plating solution circulation pump, the suction port of the plating solution circulation pump is placed in the main tank, and the output port is placed in the sub tank; The second aluminum strip inlet and the second aluminum strip outlet naturally overflow into the mother tank, the invention does not need guide rollers, and the
metal aluminum plate to be plated does not need to be turned over in the plating tank, and is always in a stable and smooth state, which is convenient The target coating with superior surface deposition performance is especially suitable for the
surface coating of wide-format
metal substrates, especially the production of light-selective absorption coatings.