36results about How to "Change contact angle" patented technology

The invention provides a turning, grinding and polishing all-in-one machine device for a rubber roller. By the adoption of the turning, grinding and polishing all-in-one machine device for the rubber roller, turning, grinding through a grinding wheel and polishing through an abrasive belt can be achieved at the same time. According to the turning, grinding and polishing all-in-one machine device for the rubber roller, a turning machine, a grinding machine and a polishing device for the rubber roller are highly integrated, and new functions are additionally achieved based on the grinding machine special for the rubber roller. A power machine head used for making a workpiece rotate is installed at one end of a machine body, and a machine tail is installed at the other end of the machine body; a spindle is arranged on the machine head; one end of the spindle is connected with a chuck, and the other end of the spindle is connected with a power device; a center used for fixing the workpiece is arranged on the machine tail, and the spindle of the machine head and the center of the machine tail are located on the same center line; a measurement device is installed on the upper surface of the machine body; and an annular abrasive belt driving and tensioning device is installed on a workbench. A whole annular abrasive belt can rotate around the axis of a driving wheel, so that the contact angle between the abrasive belt and the workpiece is changed, and accordingly the position, making contact with the workpiece, of the abrasive belt is changed, and different machining requirements are met.

The invention provides a humidity sensing ceramic and a preparation method thereof. An organosilane modification layer is arranged on the surface of a humidity sensing ceramic substrate, and the surface contact angle is 85 to 95 degrees. The organosilane is used for modifying the surface of the humidity sensing ceramic; the contact angle of fog drops deposited on the surface of the ceramic is changed; the diffusion coefficient of the fog drops on the surface of the humidity sensing ceramic is reduced. The invention also discloses a fog drop deposition sensor prepared by the humidity sensing ceramic and application of the fog drop deposition sensor to the unmanned aerial vehicle chemical spraying fog drop deposition characteristic detection. The fog drop deposition sensor provided by the invention has the advantages that information such as fog drop average particle diameter, fog drop density, fog drop covering rate and distribution uniformity can be accurately detected; meanwhile, a detection resistor reflects the relative humidity change; the fog drop deposition quantity comparison conditions of the chemical spraying specific regions can be obtained.

The invention discloses a wood processing device for a wood packaging box. The wood processing device comprises a base; a supporting frame with an upward opening is arranged at the top of the base; the supporting frame can rotate on the base; a dust collecting box, a first driving mechanism and a second driving mechanism are arranged at the top of the base sequentially; the first driving mechanism comprises a first output shaft; the second driving mechanism comprises a second output shaft; a supporting table is arranged at the tops of the first output shaft and the second output shaft; the first output shaft and the second output shaft are connected with the two sides of the bottom of the supporting table separately; a suction fan and a supporting block are arranged at the top of the supporting table; a dust suction pipe parallel to the supporting table is arranged between the supporting block and a blower; one end of the dust suction pipe is connected with the blower; the other end of the dust suction pipe penetrates through the supporting block; and a universal pipe is arranged on the blower and is connected with the dust collecting box. The polishing angle between a polishing roll and a wood board can be adjusted, the polishing quality and precision are improved, and sawdust can be collected.

The invention discloses a rubber roller belt sander, wherein a long strip-shaped support frame is positioned on a base; a driving wheel can be rotationally positioned at one end of the support frame; a driven wheel can be rotationally positioned at the other end of the support frame; the driving wheel and the driven wheel are arrayed in parallel; a ring-shaped abrasive belt is arranged on the driving wheel and the driven wheel in a sleeving manner; the driving wheel is driven by a motor to rotate; a driven shaft on the driven wheel is inserted in a shaft sleeve at the other end of the support frame; and the driven shaft can be driven by a deviation rectifying adjusting device on the shaft sleeve to rotate around a shaft perpendicular to the axial direction of the driven shaft and the length direction of the ring-shaped abrasive belt. According to the rubber roller belt sander, an adjustment of the axis parallelism of the driving wheel and the driven wheel can be realized, so that the stability of the operation of the abrasive belt can be realized; the tension adjustment of the ring-shaped abrasive belt is convenient, so that the ring-shaped abrasive belt can be adapted to processing of different materials, and the replacement of the ring-shaped abrasive belt is facilitated, the rotation of the whole ring-shaped abrasive belt around an axial line of the driving wheel can be realized, the contact angle of the abrasive belt and a workpiece can be changed, the contact position of the abrasive belt and the workpiece can be changed, and different processing demands can be met.

The invention provides a zooming liquid lens. The diopter of a liquid surface is changed by conducting a shell or a drive electrode to have an electric wetting reaction and/or an inverse piezoelectriceffect. Convenience is brought to miniaturization of an optical zooming system, the focusing range of the optical zooming system is increased, the application scenarios of the optical zooming systemare enlarged and the applicability of the optical zooming system is enhanced.

The invention provides a zoom lens. According to the zoom lens, through an electrowetting reaction and/or an inverse piezoelectric effect of a conducting shell or a driving electrode, the diopter of aliquid surface is changed, it is convenient to make an optical zoom system small, the focusing range of the optical zoom system is expanded, the application scene of the optical zoom system is broadened, and the applicability of the optical zoom system is enhanced.

An electronic device protective jacket comprises a first board body and a second board body. The first board body comprises an installation board and a turnover board. The turnover board can rotate at different angles relative to the installation board. The electronic device protective jacket also comprises a guide rail module installed on the second board body. The guide rail module comprises a spacing board. The spacing board can move to different positions so as to abut the turnover board, thereby supporting the first board body at different stand positions.

The invention provides a liquid lens and a manufacturing method thereof. The liquid lens comprises a shell that comprises a first window and a second window; first liquid that is a conductor; second liquid that is an insulator, wherein the first liquid is insoluble in the second liquid; and a substrate connected with the second window, wherein the first liquid and the second liquid are arranged inthe shell, and the second liquid is arranged on the substrate. Through communicating a power source, the shell, the first liquid and the substrate, the first liquid generates an electric wetting effect on touch surfaces with the substrate and the second liquid, the interface curvature between the first liquid and the second liquid is changed, the diopter and focal length of the liquid lens are changed, and thus the effective clear aperture is changed, the miniaturization of the lens module can be achieved, and simultaneous regulation of the focal length and the effective clear aperture of thelens module can be achieved, the application scene is enlarged and the applicability of the application components is improved.

The invention discloses organosilicon macromolecular composite waterproof gypsum and a preparation method thereof and relates to gypsum. The invention provides organosilicon macromolecular composite waterproof gypsum having excellent waterproof performance and a preparation method thereof. The organosilicon macromolecular composite waterproof gypsum is composed of the following raw materials according to mass ratio: 100 parts of desulfurated building gypsum, 0.1-3.0 parts of silane coupling agent, 0.1-1.0 part of multi-hydroxyl polymer and 80 parts of water. The preparation method comprises the steps of: preparing the multi-hydroxyl polymer into aqueous solution to obtain an ingredient A; dissolving a catalyst in water, adding the silane coupling agent, and stirring until the solution is clear to obtain an ingredient B; mixing the ingredient A and the ingredient B with the rest of water, adding the desulfurated building gypsum, mixing, injecting the mixture in a mould, demolding after gypsum is solidified, and drying to obtain the organosilicon macromolecular composite waterproof gypsum.

The invention discloses an etching solution for stably etching titanium nitride, which comprises an oxidizing agent, sulfuric acid, a chelating agent, a corrosion inhibitor and a surfactant, and is used for etching films such as titanium nitride and the like under a stirring condition. The etching solution can quickly remove titanium nitride, and has a relatively low etching rate on metals such as tungsten, copper, cobalt and the like and compounds thereof, and low-k dielectric materials, and the etching rate does not fluctuate along with the change of etching time. The pH regulator sorbic acid and the like in the etching solution stabilize the pH of the etching solution, so that the influence on the etching rate and stability of titanium nitride and metal tungsten due to the fluctuation of the pH of the etching solution caused by hydroxyl released by titanium nitride and tungsten in the etching process is avoided; the surface active agent polyacrylamide changes the viscosity, the surface tension and the like of the etching liquid, the corrosion inhibitor protects the metal tungsten, stirring is carried out during etching, substance exchange of reactants between the surface of a wafer and the solution can be increased, and the etching selection ratio of titanium nitride to thin films such as the metal tungsten is ensured.

A wear-resistant hooking lock for point rails of an external-locking turnout mainly consists of a hooking lock (1), wear-resistant blocks (2) and pin shafts (3) arranged at both ends of a U-shaped opening at the middle of the hooking lock, fastening and pressing plates (4), pin bolts (5) and bolts (6). The wear-resistant blocks (2) are respectively mounted along cambered surfaces (1-3) at both ends of the U-shaped opening (1-2) at the middle of the hooking lock (1). When planes (2-1) of the wear-resistant blocks (2) are in close contact with bottom surfaces of the point rails and stressed to generate torsion angles, cambered surfaces (2-2) of the wear-resistant blocks (2) can automatically rotate along the vertical cambered surfaces (1-3) at both ends of the U-shaped opening (1-2), so thatthe planes (2-1) of the wear-resistant blocks (2) can be always in plane contact with the bottom surfaces of the point rails and the wear of the hooking lock to the point rails is reduced. When the size of the wear-resistant blocks (2) on the hooking lock changes because of the wear during the using process and is not in conformity with the requirements, the excessively worn wear-resistant blocks(2) which are arranged at both ends of the U-shaped opening of the hooking lock can be replaced quickly and conveniently to recover a standard state of the hooking lock, so that the safety performance of equipment and the reliability for use are improved and the disturbance to the running of trains is reduced.

The invention discloses self-walking polishing equipment, and belongs to the technical field of wall board prefabrication. The self-walking polishing equipment comprises a base, and is characterized in that a first slide frame capable of moving longitudinally is installed in the base, a second slide frame capable of moving horizontally is installed on the first slide frame, a universal joint is arranged in the second slide frame, a polishing machine is installed in the universal joint, a joystick capable of extending to the upper part of the second slide frame is fixed to the polishing machine, and the joystick can drive the polishing machine to rotate in the universal joint. The self-walking polishing equipment can drive the second slide frame to move in a two-dimensional plane through the friction force between the polishing machine and a wall board, so that the walking speed of the polishing machine adapts to the friction force, and the friction force is directly related to the polishing effect; when a better polishing effect is achieved, the walking speed of the polishing machine is obviously slowed down, the polishing quality is enabled to be controllable, a better combinationpoint of polishing efficiency and quality is achieved, the self-walking of the polishing machine is further realized, and the walking energy is saved.