A method for washing an article to remove contaminations such as oils and fats, foreign substances and the like from a surface of the article is provided. The washing method comprises the steps of: cooling a washing solution to obtain a super-cooled washing solution; heating an article to increase its surface temperature to the temperature which is not lower than the boiling point of the washing solution; and washing and drying the article concurrently, while spraying the super-cooled washing solution to the heated article. The washing apparatus for carrying out this washing method is also provided. Using these washing method and apparatus, it becomes possible to downsize a scale of the washing apparatus, and to operate the washing apparatus under the energy-saving conditions as a result of reduction in an amount of the consumed energies, and the washing process at an accelerated speed.

A receiver unit for accepting a multitude of oblong bodies in a treatment tank for treating the surface of the oblong bodies, particularly tubes, via a treatment medium which can be inserted into the treatment tank, enabling the receiver unit to move between an open position, in which the oblong bodies can be inserted into the receiver unit and can be removed from the receiver unit, and a closed position in which it forms a guide opening for the treatment medium, at least partially surrounding the oblong bodies.

Systems and methods are provided for removing ferrous debris from a vehicle assembly in an alkaline degreaser bath. A degreaser tank is configured in shape and size to accommodate a degreasing cleaning of vehicle assemblies. A conveyor system may selectively transfer vehicle assemblies into and out of the degreaser tank. A flushing system includes a plurality of debris removal flushing stations strategically located at side walls of the degreaser tank. Each station includes a set of electromagnets adjacent to an exterior of the degreaser tank to attract metal debris to a collection area at an interior wall, opposite the set of electromagnets. A drain port is located at the side wall, below the electromagnets. A supply line is provided above the electromagnets to selectively provide degreaser toward and direct debris to the drain port. A controller engages each debris removal flushing station based on a predetermined cycle.

A plating apparatus includes a plating tank and a plating unit that performs electrolytic plating on an object. The plating unit includes a workpiece passage region including a partition wall that allows passage of the plating solution but does not allow passage of the object, the workpiece passage region passing the object from above toward below, an injection unit that injects the plating solution from below toward above, a mixing unit that mixes the plating solution injected by the injection unit and the object to be plated passing through the workpiece passage region, an anode outside the workpiece passage region, a cathode inside the workpiece passage region including a hollow region through which a mixed fluid of the plating solution and the object to be plated passes from below toward above, and a guidance unit that guides the mixed fluid to the workpiece passage region.

Methods, systems and apparatuses for treating operating aluminum desmutting solutions by reacting, mixing and filtering a partial desmutting solution flow are disclosed.

Methods, systems and apparatuses for treating operating aluminum desmutting solutions by reacting, mixing and filtering a partial desmutting solution flow are disclosed.

A device for hydrogen production with waste aluminum includes a treatment apparatus for waste aluminum and a reaction tank. The apparatus includes a first crusher, a pickling tank, and a second crusher. The first crusher is for preliminarily crushing waste aluminum to obtain first aluminum chips. The pickling tank is for receiving and pickling the first aluminum chips crushed by the first crusher. The second crusher is for receiving and fine crushing the first aluminum chips to obtain second aluminum chips. The second aluminum chips are received by the reaction tank and then hydrolyzed with an alkaline solution in the reaction tank to produce hydrogen. Since waste aluminum is used as the raw material of hydrogen production, and a specific device is used for waste aluminum treatment, so the effects of recovering waste metal, reducing environmental damage, and saving costs can be achieved at the same time.

A treatment device is provided for treating a metal object, wherein the treatment comprises at least pickling and phosphating of the object, and, by means of the phosphating, a protective layer is produced on a surface of the object. The treatment device comprises a treatment container for holding the object to be treated and for holding a flowable treatment substance, and a pumping apparatus for circulating at least a portion of the treatment substance. The treatment substance is flowable around at least part of the object to be treated, and is a phosphorus- or phosphate-containing solution. The solution consists of water and a reaction substance, and the reaction substance consists of phosphorus or of a phosphate and at least one additional substance that improves treatment effect. The fraction of the phosphorus or the phosphate in the reaction substance is more than 98 vol % and especially preferably more than 99 vol %.

A treatment device is provided for single-stage treatment of a metal object, wherein the treatment comprises at least pickling and phosphating of the object. The treatment device comprises a treatment container for holding the object to be treated and for holding a flowable treatment substance, and a pumping apparatus for circulating at least a portion of the treatment substance. The treatment substance is flowable around at least part of the object to be treated, and the treatment substance is a phosphorus- or phosphate-containing solution. The phosphorus- or phosphate-containing solution consists of water and a reaction substance, and the reaction substance consists of phosphorus or of a phosphate and at least one additional substance that improves the treatment effect. The fraction of the phosphorous or the phosphate in the reaction substance is between 75 vol % to 94 vol %, and the reaction substance has no fractions of hydrochloric acid and sulfuric acid.

A treatment device is provided for single-stage treatment of a metal object, wherein the treatment comprises at least pickling and phosphating of the object. The treatment device comprises a treatment container for holding the object to be treated and for holding a flowable treatment substance, and a pumping apparatus for circulating at least a portion of the treatment substance. The treatment substance is flowable around at least part of the object to be treated, and the treatment substance is a phosphorus- or phosphate-containing solution. The phosphorus- or phosphate-containing solution consists of water and a reaction substance, and the reaction substance consists of phosphorus or of a phosphate and at least one additional substance that improves the treatment effect. The fraction of the phosphorous or the phosphate in the reaction substance is between 75 vol % to 94 vol %, and the reaction substance has no fractions of hydrochloric acid and sulfuric acid.