摘要:
The invention relates to a direct-current high-voltage generator that comprises: current unidirectional switches (74, 76); a driver unit (130) capable of controlling the switching operation from an on-state to an off-state of a switch (74) only when a switch connected in parallel is in the on-state.
摘要:
The invention relates to an electronic board that comprises a planar projection plate (42) provided between an intake opening (70) and a discharge opening (72); and a plurality of rectilinear nozzles (86-90) extending through said plate along a projection direction, the projection direction of each nozzle defining an angle relative to a direction perpendicular to a sole (78) of the electronic component (6) to be cooled, the angle α being comprised in a range of −30 and +30°.
摘要:
The invention relates to a direct-current high-voltage generator that comprises: current unidirectional switches (74, 76); a driver unit (130) capable of controlling the switching operation from an on-state to an off-state of a switch (74) only when a switch connected in parallel is in the on-state
摘要:
The bowl according to the invention is equipped with first magnetic coupling means adapted to cooperate with second complementary magnetic coupling means fixed on a non-rotary part of a sprayer, these first and second coupling means being adapted to exert an at least partially axial effort inducing the coupling in rotation of the bowl with a corresponding drive member. The radial width of an annular or truncated surface defined by the first coupling means is greater than the total radial width of the coupling means borne by the non-rotary part.
摘要:
The invention concerns a rotary nozzle combination (P) for coating product comprising an atomizing bowl (3) and a rotor (11) adapted to rotate the bowl about a geometrical axis (X-X′), and means (4, 5, 6, 7) for controlling the presence and/or proper mounting of the bowl (3) on the rotor (11). The rotor (11) is spaced apart from a non-rotating part (P1) and the control means comprise first means (4, 5) enabling a force (F3) to be applied on the bowl (3) tending to vary the thickness of an air-film of the pneumatic thrust bearing (P1), as well as second means (7, 8) for determining the air pressure in the bearing (P1). The pressure of air in the thrust bearing (P1) can be determined when the latter is normally supplied and compared with at least one reference value.
摘要:
A coating product sprayer installation enabling a rapid change of coating product. The installation includes two parallel distribution branches each containing a piston or membrane type intermediate storage tank defining an actuation chamber actuated by a liquid, the branches being connected by means of valves between a coating product change unit and at least one coating product sprayer. The apparatus can be used advantageously for electrostatic spraying of conductive coating products.
摘要:
The invention relates to an electronic board that comprises: a planar projection plate (42) provided between an intake opening (70) and a discharge opening (72); and a plurality of rectilinear nozzles (86-90) extending through said plate along a projection direction, the projection direction of each nozzle defining an angle relative to a direction perpendicular to a sole (78) of the electronic component (6) to be cooled, the angle α being comprised in a range of −30 and +30°.
摘要:
This installation for spraying a multi-component coating material comprises at least one robot (1) having a moving portion (6) carrying at least one electrostatic sprayer (8), the coating material comprising an electrically-conductive component together with at least one second component that is electrically insulating or poorly conductive. The installation comprises firstly a main tank (7) fitted with means (71) for making a temporary connection with a circuit (11) for dispensing the first component, and being raised to a high voltage when said connection means are not connected, and secondly a feed circuit (10, 101, 102) for continuously feeding the or each second component. The main tank (7) and the or each second component feed circuit (10, 101, 102) are carried by the moving portion (6) of the robot (1) and connected to feed the sprayer.
摘要:
In a process and device for spraying a coating product onto an article from a sprayer to which coating product is supplied from a reservoir equipped with a piston which is moved along a path in order to transport the coating product to the sprayer, movement of the piston is controlled as a function of movement of the sprayer relative to the article.
摘要:
An electrostatic coating product spraying device comprising: at least one sprayer having an electrostatic charging mechanism; and a support structure supporting the at least one sprayer, the structure including elements which are at ground potential, wherein the support structure includes an electrostatic shield positioned and arranged so that the electrostatic charging mechanism is located between the electrostatic shield and an object to be coated. The electrostatic shield is maintained at a potential differing from ground potential.