Abstract: An apparatus for applying surface treatment on an object-to-be-treated which is continuously moved in a treating liquid usually by a hanging conveyor. The apparatus is provided at the bottom portion of a treating vessel with one or more hoppers, which function to collect the deposited sludge for exhausting the same through the lower portion of the hoppers outside the treating vessel. Further, the apparatus is provided with a plurality of slant plates disposed above the bottom of the treating vessel, being inclined in the same direction, with a predetermined inter-distance among them, so as to facilitate sludge produced in the vessel to be gradually deposited down on the bottom thereof.

Abstract: A method of surface treatment and an apparatus used in said surface treatment are provided in the present invention.Said method comprises dipping a surface-to-be-treated of an article in a treating liquid, moving said article in said treating liquid, letting the treating liquid flow in the reverse direction against said moving, spraying the treating liquid on the surface-to-be-treated of the article before and/or during said dipping and gush-spraying the treating liquid on the treated surface after said dipping; and said apparatus comprises a tank filled with a treating liquid, spraying tools arranged above and/or in said treating liquid in the front part of said tank, means of overflow formed in the front end of the tank, a container receiving the treating liquid overflowing from said means, a path recirculating the treating liquid from said container to the tank and a spraying tool arranged in the rear part of the tank.

Abstract: An apparatus used in surface treatment and a method of surface treatment using said apparatus are provided in the present invention.