摘要:
An electrode of a metal oxide sintered mass, comprising: an electrode body having therein a metal member as a core the outer circumference of which is covered with an electroconductive material and a metal oxide sintered mass; and a sheathed lead wire joined to said electrode body, the joint therebetween being covered with a resin.
摘要:
A modular membrane box for use in an electrocoating system. The modular construction allows a number of cells to be assembled as a single unit as may be required by the tank dimensions. The anolyte supply and return lines, which are pressurized, and the membrane box assemblies and their controls are removably mounted on the tank. Provisions are made for easy and relatively inexpensive installation, inspection and maintenance of the membrane boxes, piping and controls.
摘要:
Electrocoating equipment having a conveyor I-beam monorail with a plurality of trolleys movable therealong for carrying parts through a bath to be electrocoated. The trolley comprises wheels, yoke arms dependent from the wheels below the rail and a part carrier suspended from the arms. A chain drive interconnects and propels the trolleys. An electrical grounding shoe in the form of one or more hollow pipes, bars or cables is suspended from the monorail between the rail and yoke arms and is electrically connected to the ground return side of a power supply system associated with said electrocoating equipment. The grounding shoe is disposed in sliding electrical contact with at least one of the trolley arms and extends along the path of travel thereof while the same is transitting the electrocoating bath of said equipment. The grounding shoe is yieldably biased into such sliding contact within the space defined between the yoke arms and has at least a limited degree of vertical movement relative to said rail to accommodate like movement of the trolley arm during its transit of the grounding shoe. Preferably the grounding shoe has a curved exterior surface with a radius of curvature such that the shoe makes a dual tangential contact with the yoke arms along the interior surfaces thereof at one point on each arm spaced above the vertex arm junction of the yoke. A trolley cleanout obstruction is fixed on the rail adjacent the path of travel of the trolley yoke arms and upstream of the grounding shoe. The trolley cleanout normally has a slight clearance with said yoke arms and is adapted to dislodge foreign matter clinging thereto or to obstruct movement of the trolley should such foreign matter remain adhered thereto upon striking the trolley cleanout.
摘要:
A method for supplying binder into a coating tank for electrophoretic power coating comprises: a step for transferring into a solid/liquid separation tank a proper amount of plating bath liquid contained in the coating tank of which the binder component is reduced as a result of the work for coating a given number of articles; a step in which the plating bath liquid is left as it is so as to form supernatant liquid and residual liquid; a step for agitating the supernatant liquid in a supernatant tank; a step for returning the residual liquid to the coating tank; a step for supplying mother binder liquid corresponding in amount to the reduced binder component to a mixing tank; a step for transferring a given amount of the liquid in the supernatant liquid tank into the mixing tank; a step in which a proper amount of plating bath liquid in the coating tank is supplied into the mixing tank while being agitated to form replenisher or supplementary bath liquid; and a step for supplying the replenisher bath liquid into the coating tank. The method is realized by an apparatus of this invention for supplying binder into a coating tank for electrophoretic powder coating.
摘要:
This invention relates to an improved method and system for controlling the temperature of an electrocoating bath wherein the bath is passed through a heat exchanger wherein the heat exchange surfaces in contact with the bath do not exceed 180.degree. F.
摘要:
Coated products are prepared by electrodepositing a varnish from a water dispersion onto a conductive substrate; dipping said coated substrate into hot water so that the varnish is treated with said hot water; and thereafter treating said varnish coating with compressed steam.
摘要:
An electrocoating tank arrangement characterized by a centrally and longitudinally disposed paint supply header extending along and proximate to the bottom of the tank, where the tank has sloped bottom walls, and where a highly desirable paint agitation pattern is achieved, permitting the part or article under processing to be effectively coated with optimum results. The electrocoating tank may further include adjustable weir arrangements at opposite ends thereof to promote surface circulation. The paint material is recirculated through conventional means and the electrocoating tank forms an important function in a conveyorized operation.
摘要:
An electrolytic bath is concentrated in situ by a process of electrodecantation during the principal electrolytic process for which the bath is employed, e.g. a coating process, utilizing in the electrodecantation process at least some of the electric current which is used in the principal electroytic process. Alternatively, the composition may be concentrated in the electrolytic bath in a separate stage when the principal electrolytic process is not taking place, but there is then used at least one electrode which is also used in the principal electrolytic process.
摘要:
A method of controlling undesirable components in an electrodeposition bath comprising a film-forming vehicle resin in an aqueous medium, by subjecting at least a portion of the electrodepositable composition, simultaneously or at a separate time, to an electrodialysis process in conjunction with a selective separation process whereby process parameters and the properties of the deposited film are maintained.
摘要:
PROCESS AND APPARATUS FOR ANODICALLY ELECTRODEPOSITING A RESIN FILM FROM AN AQUEOUS BATH OF A WATER-DISPERSIBLE POLYCARBOXLIC ACID RESIN WITH AN ALKALI METAL HYDROXIDE DISPERSAL AGENT USING A FLOWABLE LIQUID MERCURY CATHODE. ALKALI METAL IONS ARE REMOVED FROM THE AQUOUS COATING BATH BY CATHODIC DEPOSITION, WHILE THE RESIN IS DEPOSITD ON A METAL ANODE. MERCURY AND ALKALI METAL VALUES FROM THE AMALGAM ARE RECOVERED FOR REUSE.