36results about How to "No mechanical stress" patented technology

The invention provides an electrochemical levelling and polishing processing method with nanometer precision and a device thereof, relating to an electrochemical etching levelling and polishing technology. The device is provided with a cutter with nanometer levelling precision, an electrochemical reaction control system capable of accurately controlling the thickness of an etching levelling agent liquid layer in nanoscale, a solution circulating device, a solution thermostat and an automatic control system. The method is implemented by the following steps: preparing the cutter with nanometer levelling precision to serve as an electrochemical working electrode, and placing the cutter at the bottom of a container together with a workpiece; immersing the cutter in a solution, starting an electrochemical system, generating the etching levelling agent on the surface of the cutter, compressing the etching levelling agent liquid layer on the cutter surface into a nanoscale thickness, and regulating and controlling the thickness of the etching levelling agent liquid layer; driving a tri-dimensional micro-drive device, leading the cutter to approach the workpiece gradually, and regulating and controlling the distance and parallelism between the workpiece surface and the cutter; and leading the cutter to move toward the workpiece surface, and enabling the constraint etching levelling agent liquid layer on the cuter surface to contact with the workpiece surface until the whole workpiece is etched, leveled and polished.

The invention relates to a rolling device for rolling and unrolling a leash, especially for leading an animal. The rolling device includes a leash roller mounted rotatably on a carrier and reset, by aresetting device, into a rolled-up position in which the leash is wound around the leash roller; a blocking mechanism that blocks the unrolling of the leash from the leash roller; and a transmissiondevice coupled to the leash roller and causing the blocking of the blocking mechanism when a predetermined leash length is unrolled from the leash roller. A simple configuration with high operating reliability and low wear is provided with the transmission device having a first transmission element arranged rotatably on the carrier and a second transmission element arranged nonrotatably on the carrier. The first transmission element and the second transmission element have an outer circumference and an inner circumference associated with one another, which mesh with one another at least in anactive state.

The invention discloses an intermediate fixture and a method thereof for preparing semiconductor laser failure analysis samples. The intermediate fixture includes a first clamping part and a second clamping part; the first clamping part is used to clamp a TO laser, and holds a TO The first clamping part of the laser can obtain the cold mounting sample after injection molding, and the second clamping part is used to fix the cold mounting sample and control its grinding thickness; the first clamping part includes the first shell and the cylindrical block; the second The clamping part includes a second shell, an adjusting part and a pad; the pad can move up and down under the action of the adjusting part, and at the same time adjust the size of the part of the cold mounting sample exposed to the sample groove. The preparation process of the present invention has no high-temperature operation and effectively protects the chip; at the same time, no expensive micro-nano processing equipment is required, and the sample preparation process is simple and easy to operate; the prepared samples can be directly used for electroluminescence, photoluminescence and electron beam induced current failure analysis and defect detection.

The invention discloses a connecting device, in particular a connecting device for a busbar channel and switch circuit breaker in switchgear and belongs to the technical field of distribution switchgear. The device comprises multiple insulation modules provided with mounting grooves and conductive plug strips, wherein the insulation modules press the conductive plug strips in the mounting grooves to form busbar plug channels, the device further comprises outer protective cases which sleeve the insulation modules and are used for protection and reinforcement, the insulation modules sleeve the conductive plug strips through the outer protective cases, and insulation partitions for isolation are arranged among plug channels. With the adoption of the connecting device, the problem that circuits for electrical connection in the switchgear are complex is solved, so that inner connecting units are modular, the connecting device is easy to assemble and free from maintenance due to adoption of the plug manner, the structure in the switchgear is effectively optimized, and the cost is reduced.

The invention discloses a laser parallel processing device and processing method for array air holes of leather products, including a laser system, an optical light guide system, an X-Y two-dimensional honeycomb adsorption platform system, a computer control system, an optical path exit of the laser system and an optical The light path entrance of the light guide system is opposite, and the light path exit of the optical light guide system is opposite to the working area of ​​the X-Y two-dimensional honeycomb adsorption platform system; the optical light guide system includes a pneumatic shutter, a quarter slide, a mirror, Adjustable beam expander, adjustable diaphragm, dichroic mirror, laser beam splitting unit, scanning galvanometer; the optical path of the laser beam output by the laser system is a pneumatic shutter, a quarter glass, a mirror, and an adjustable Beam expander, adjustable aperture, one side of the dichroic mirror, laser beam splitting unit, scanning galvanometer, leather surface to be processed, and the other side of the dichroic mirror is provided with an indicating red light unit.

The invention relates to a method for producing an electronic assembly (5), in particular for a transmission control module, having the following steps: providing a printed circuit board (10) with a first face (12) and a second face (14) facing away from the first face (12) and with at least one first electronic component (70) arranged on the first face (12) of the printed circuit board (10); arranging the printed circuit board (10) such that the second face (14) lies at least partly on a reference surface (40); applying a sealing material (50) which is substantially not flowable prior to being cured onto the first face (12), said sealing material (50) being applied such that the sealing material (50) surrounds a sub-region (20) of the first face (12) of the printed circuit board (10); arranging a second component (80) at least partly on the reference surface (40) such that the second component (80) is at least partly pressed into the sealing material (50); electrically connecting thesecond component (80) to the printed circuit board (10) by means of an electric connection line (85); applying a covering material (60), in particular a covering material (60) which is flowable priorto being cured, onto the printed circuit board (10) first face (12) sub-region (20) surrounded by the sealing material (50) and onto the first component (70); curing the sealing material (50); and curing the covering material (60).

The present invention provides a capacitor installing stack structure, wherein a capacitor installing platform is reversedly arranged on an operating platform, thus clamping parts arranged at left and right side of the capacitor installing platform can play a clamping function to ensure a specified size H2T defined by the clamping parts, then the capacitor is inserted into an installing hole of the capacitor installing platform which is reversedly arranged when in a reversal state, thus a distance H2C from the horizontal operating platform to a terminal arranged at an upper part of the capacitor can be set as the same with the specified size H2T defined by the clamping parts. Under the state, the capacitor can be fixed on the capacitor installing platform by using fixing parts.

The invention relates to a device for permanently joining at least two components, comprising at least one power source for providing energy to bring about the joint.

A method for producing an electronic assembly (5), in particular an electronic assembly (5) for a gearbox control module, is specified, the method comprising the steps of: providing a printed circuit board (10) having a first A side (12) and a second side (14) facing away from the first side (12) and having at least one first electronic component (70) arranged on the first side (12) of the printed circuit board (10) ; the printed circuit board ( 10 ) is at least partially arranged on the reference surface ( 40 ) with the second side ( 14 ); applying a sealing material ( 50 ) which is substantially non-flowable before age hardening to the first side ( 12), wherein the sealing material (50) is coated such that the sealing material (50) surrounds a partial area (20) of the first side (12) of the printed circuit board (10); the second device (80 ) is at least partially arranged on the reference surface (40), so that the second device (80) is partially pressed into the sealing material (50); the second device (80) is electrically connected to the printed circuit board (10); applying a covering material (60), in particular a covering material (60) that is flowable before age hardening, to the first side (12) of the printed circuit board (10) The partial area (20) surrounded by the sealing material (50) is applied to the first component (70); the sealing material (50) is age-hardened; and the covering material (60) is age-hardened.

The invention concerns a lid (2) comprising a skirt (3) for covering the opening of a can (1), in particular a paint can. The invention is characterized in that the skirt (3) comprises a peripheral edge (30), at least one stud (71) formed in the edge (30) and elastically coupled to said edge (30), at least one lock (72) mounted sliding on said edge such that said lock may take up a locking position wherein said lock is adapted to retain said stud in a position for engaging the lid on the can.

A length-adjustable steering shaft (1) for a motor vehicle has an inner shaft part (2) held coaxially on an outer shaft part ( 4), wherein the two shaft parts (2, 4) have in cross-section a profile that engages with each other for the purpose of torque transmission, a special-shaped sleeve (3) is provided on the inner shaft part (2), and the outer The shaft part (4) is arranged on the special-shaped sleeve in a telescopic manner. The improvement of the steering shaft in terms of simplified production is that the special-shaped sleeve (3) surrounds the free end of the inner shaft part (2) in the assembled state. (10) has in the first end region (7) at least one radially inwardly protruding stop ( 8), and in that the end region (12) of the inner shaft part (2) is equipped with radially outwardly protruding projections (13) for abutting against the profiled sleeve (3) in the opposite axial direction (6) . The invention also comprises a profiled sleeve (3) for the aforementioned steering shaft (1) which, with regard to simplified assembly, has at least one radially inwardly protruding stop located in the first end region (7) Department (8).