Abstract: In a paint plant which comprises at least one spray-painting device incorporating at least one application unit for painting workpieces and in particular motor vehicle bodies with a fluid paint, in order to enable the fluid paint overspray i.e. the paint particles which are not adhering to the workpieces that are to be painted and which are picked up and carried along in an air flow passing through the application area of the paint shop, to be re-separated from this air flow and also to enable the cleansed air flow to be returned to the application area in an air re-circulating system or else expelled into the environment of the plant, the paint shop comprises a device for separating fluid paint overspray from a stream of crude gas that contains overspray particles wherein this device comprises at least one filter element for separating the overspray from the stream of crude gas.

Abstract: A coating machine component, e.g., a bell plate for a rotary atomizer, and corresponding production methods are disclosed. An exemplary coating machine component includes a molded base body and a functional element for providing at least one of mechanical stiffening, chemical and/or electrical functionalizing of the coating machine component. The functional element may be made from a material having a greater mass density than the base body. An exemplary functional element may be a coating that is at least partially applied to the base body.

Abstract: In order to separate overspray of a liquid coating material from an air current or fluid flow flowing through the application region of a system for coating workpieces, the overspray present in the air current is charged with an auxiliary agent introduced in the air current. The auxiliary agent may include, for example, particles having a fiber or hollow space structure and/or a particulate material or fluid chemically reacting with the overspray particles.

Abstract: Exemplary coating devices and exemplary coating methods for coating components with a coating agent, e.g., for painting motor vehicle body components with a paint, are disclosed. An exemplary coating device comprises an application device that applies the coating agent. The application device may include a paint head that discharges the coating agent out of at least one coating agent nozzle.

Abstract: Exemplary production methods for producing a paint plant component, e.g., for producing a component of a colour changer, a colour valve, or a spray device, are disclosed. According to the exemplary illustrations, the paint plant component may be produced in a rapid prototyping method. The exemplary illustrations also include a paint plant component that is produced accordingly.

Abstract: A painting station, e.g., for serially painting components such as motor vehicles, is disclosed. A painting station may include at least one painting cell in which components are coated, e.g., with a paint, that has a certain layer thickness. At least one measuring cell is provided for measuring the layer thickness of the paint, e.g., with a radiation source, a radiation detector, and a conveying path along which the components to be coated are conveyed through the painting and measuring cells. The radiation source may emit light in the visible wavelength range.

Abstract: In order to separate an overspray of a liquid coating material from an air current flowing through the application region of a coating system, an overspray present in the air current may be charged with a particulate auxiliary material introduced in the air current. The new or fresh auxiliary material may be delivered from a feed container via a line arrangement into a container arrangement located in a region of the fluid flow outlet, e.g., beneath the application region.

Abstract: The invention relates to a coating powder sieving device, specifically for a powder paint coating installation, having a screen surface for sieving a coating powder. The screen surface is angular. An ultrasonic probe excites vibrations in the screen surface wherein the vibrations in the screen surface occur substantially in a direction perpendicular to the screen surface. A powder fluidization hopper incorporating the coating powder sieving device and a powder coating installation including plural powder fluidization hoppers are also disclosed.

Abstract: A powder transfer pump to convey a powder, in particular in a powder coating station. The powder transfer pump comprises a transfer chamber with a transfer chamber wall, an inlet opening into the transfer chamber to supply the powder to the transfer chamber, an outlet opening out of the transfer chamber to convey the powder from the transfer chamber, a negative pressure connection opening into the transfer chamber to generate negative pressure in the transfer chamber in order to suck the powder into the transfer chamber, and a positive pressure connection opening into the transfer chamber to discharge the powder that is present in the transfer chamber through the outlet. The transfer chamber wall is essentially gas-tight.

Abstract: An operating system for a power feed pump and a power feed pump having a transfer chamber with an inlet and an outlet. The outlet of the transfer chamber is closed, the inlet of the transfer chamber is opened, and a negative pressure is generated in the transfer chamber to suck a powder in through the inlet to the transfer chamber. The inlet of the transfer chamber is closed, the outlet of the transfer chamber is opened, and the powder in the transfer chamber is delivered through the outlet. The negative pressure in the transfer chamber is built up at least partially before the inlet of the transfer chamber is opened.

Abstract: To supply a powder lacquer sprayer, the coating powder is pressed by a pig through the supply line and, in the process, it is fluidized from the side of the pig which is turned toward the powder. The fluidization air can be led to the powder, for example, by a central passage opening of the pig or through an air permeable wall of the connection line. For the dosage of the coating powder, one uses the push medium which drives the pig.

Abstract: The invention relates to a coating powder sieving device, specifically for a powder paint coating installation, having a screen surface for sieving a coating powder. The screen surface is angular. An ultrasonic probe excites vibrations in the screen surface wherein the vibrations in the screen surface occur substantially in a direction perpendicular to the screen surface. A powder fluidization hopper incorporating the coating powder sieving device and a powder coating installation including plural powder fluidization hoppers are also disclosed.

Abstract: A powder conveying pump, in particular for a powder coating device. The pump comprises a working chamber with a variable working chamber volume, a powder inlet opening into the working chamber to suck powder into the working chamber, a powder outlet opening out of the working chamber to expel the powder present in the working chamber and a moveable piston that forms one boundary surface of the working chamber and sucks the powder into the working chamber through the powder inlet during an upward movement. The piston is driven directly by pneumatic means.

Abstract: A powder transfer pump to convey a powder, in particular in a powder coating station. The powder transfer pump comprises a transfer chamber with a transfer chamber wall, an inlet opening into the transfer chamber to supply the powder to the transfer chamber, an outlet opening out of the transfer chamber to convey the powder from the transfer chamber, a negative pressure connection opening into the transfer chamber to generate negative pressure in the transfer chamber in order to suck the powder into the transfer chamber, and a positive pressure connection opening into the transfer chamber to discharge the powder that is present in the transfer chamber through the outlet. The transfer chamber wall is essentially gas-tight.

Abstract: To supply a powder lacquer sprayer, the coating powder is pressed by a pig through the supply line and, in the process, it is fluidized from the side of the pig which is turned toward the powder. The fluidization air can be led to the powder, for example, by a central passage opening of the pig or through an air permeable wall of the connection line. For the dosage of the coating powder, one uses the push medium which drives the pig.

Abstract: An operating system for a power feed pump and a power feed pump having a transfer chamber with an inlet and an outlet. The outlet of the transfer chamber is closed, the inlet of the transfer chamber is opened, and a negative pressure is generated in the transfer chamber to suck a powder in through the inlet to the transfer chamber. The inlet of the transfer chamber is closed, the outlet of the transfer chamber is opened, and the powder in the transfer chamber is delivered through the outlet. The negative pressure in the transfer chamber is built up at least partially before the inlet of the transfer chamber is opened.

Abstract: A transparent cover plate composed of a synthetic plastic material and utilized for a motor vehicle headlight or another light source is provided on an outer side with a coating of a transparent synthetic plastic material which is a burnt powder lacquer.