44 results about "Vacuum grease" patented technology

Using a laser lift-off (LLO) nonbonding technique, freestanding 4-layer GaN / AlGaN heterostructure membranes have been formed. A 4×4 mm mask was attached to the area at the center of the most-upper AlGaN layer was attached using a nonbonding material such as vacuum grease. A microscopic slide attached by an adhesive provided support for the structure during the laser lift-off without bonding to the layers. The vacuum grease and the mask isolated the adhesive from the structure at the center. The microscopic slide served as a temporarily nonbonding handle substrate. Laser lift-off of the sapphire substrate from the heterostructures was performed. The remaining adhesive served as a supporting frame for the structure making a free-standing 4-layer GaN / AGaN heterostructure membrane. Other frameless freestanding membranes can be fabricated for a variety of applications including further III-nitride growth, heterogeneous integration, packaging of micro systems, and thin film patterns.

The invention relates to a method for manufacturing structured organic electroluminescent light-emitting devices (OLEDs) comprising light-emitting and non-emitting areas and to OLEDs manufactured according to this method comprising the steps of: Providing (P) a substrate (2) covered at least locally with at least one conductive layer as the first electrode (3); Depositing (D-SML) a stack modification layer (4) locally on top of the first electrode (3) to establish first areas (31) covered with the stack modification layer (4) and non-covered second areas (32) adjacent to the first areas (31) forming the desired structured pattern; —Depositing (D-OLS) the organic layer stack (5) comprising at least one organic light-emitting layer (51) on top of the first electrode (3) locally coated with the stack modification layer (4) providing an organic layer stack (5) being separated from the first electrode (3) by the stack modification layer (4) in between the organic layer stack (5) and the first electrode (3) in the first areas (31) and being in direct electrical contract to the first electrode (3) in the second areas (32); and Depositing (D-SE) a conductive metal layer as the second electrode (6) on top of the organic layer stack (5) to finish a functional layer stack (7), wherein the first areas (31) above the stack modification layer (4) remain free of the conductive metal without masking these first areas (31); —Providing an easy, variable and reliable method of a maskless structuring of the functional layer stack of OLED enabling to maintain the same the same deposition processes for the functional layer stack as applied during mask processing.

The invention relates to a clamp, in particular to a clamp for sealing detection of an electronic packaging shell. The clamp for sealing detection of the electronic packaging shell comprises a pressing board, a detection platform and a pressing rod. The pressing board is installed on the detection platform through a bolt, and the lower side of the detection platform is connected with a leak detector connector. A circular hole is formed in the center of the upper surface of the pressing board, a counter bored hole is formed in the lower surface of the pressing board, the diameter of the counter bored hole is larger than that of the circular hole, and the counter bored hole is communicated with the circular hole. The counter bored hole is filled with a soft rubber board, a ventilation hole is formed in the center of the soft rubber board, a through hole is formed in the center of the detection platform, a workpiece is buckled to the ventilation hole inversely, the upper edge of the workpiece and the soft rubber board are sealed, and a cavity of the workpiece is communicated with the leak detector connector. One end of the pressing rod is fixed to the upper surface of the pressing board through a support, a pressing head is installed on the pressing rod, and when the pressing rod is pressed downwards, the pressing head presses the bottom surface of the workpiece. The clamp for sealing detection of the electronic packaging shell can correspond to workpieces in various sizes flexibly, and a detection port and a detected product can be well sealed without using vacuum grease.

The invention relates to a high and low temperature resistant siloxane vacuum grease composition and its preparation method. The high and low temperature resistant siloxane vacuum grease composition is used for lubrication and sealing of high-low temperature vacuum systems and high-low temperature vacuum valves, and comprises the following components by weight: 84-93% of organosilicon polymer oil, 3-15% of silicon dioxide powder, 0.5-7% of a surface covering agent, and 0.05-2.0% of an additive. The high and low temperature resistant siloxane vacuum grease composition has excellent sealing performance and long-term storage stability, and at the same time has good compatibility with a contact surface, high and low temperature performance, adhesion performance, chemical inertness, and water resistance. The high and low temperature resistant siloxane vacuum grease composition can be used for lubrication and sealing of high vacuum systems, sealing of glass valves, ceramic ground joints, pistons, and faucets, as well as sealing elements of air pressure valves, vacuum equipment and pneumatic brakes, etc.

The invention discloses a nanoscale component laser sintering molding method and device. The nanoscale component laser sintering molding device comprises a mixed sample feeding system, an aerodynamic lens, a confocal laser group and a worktable; the mixed sample feeding system is provided with a buffer cavity. The nanoscale component laser sintering molding method comprises the steps of placing nanoparticle powder into a powder storage cavity, carrying the powder into a mixing cavity through air, adequately mixing the powder and another branch circuit of air, facilitating the obtained aerosol flow to enter the buffer cavity, further mixing the gas and nanoparticle powder, and lowering the pressure and flow rate to obtain a fluid with a Reynolds number of 200 to 700; facilitating the fluid to enter a cylindrical cavity in a laminar flow form, and spraying out the fluid in a single-particle flow form after the fluid passes through gathering holes in each lens and is focused; receiving the particles by a sintering substrate which is coated with vacuum grease on the worktable, and melting the particles by the confocal laser group; acquiring a two-dimensional pattern with nanoscale molding precision by virtue of the movement of the worktable in an X direction and a Y direction; gradually laminating the particles to obtain a component with the nanoscale molding precision by virtue of the movement of the worktable in a Z-axis direction.

The invention relates to a high-vacuum grease deodorization device, particularly relates to a high-vacuum grease deodorization device for grease deodorization. The device solves the problems of low deodorization ratio, higher grease trans fatty acid, deep color of deodorized oil and the like in application of the existing deodorization tower, and aims to create a reasonable and feasible novel deodorization technological facility for the grease deodorization technique. In order to solve the technical problems, the technical scheme is as follows: the high-vacuum grease deodorization device comprises a device shell, heaters and an oil return pipe, wherein the heater is arranged at the center in the device shell from top to bottom; a plurality of circular heater sets are arranged around the inner shell; and the upper end of the device shell is provided with an oil inlet pipe, the side surface is provided with an oil outlet, and the lower end of the device shell is provided with a circulating oil pipe.

The invention discloses a method for sealing a sample room of a mercury injection apparatus and relates to technology for sealing the sample room of the mercury injection apparatus. The invention provides a method which has simple operation, can be repeatedly used, does not pollute a sample and is used for sealing the sample room of the mercury injection apparatus. A hollow annular washer is arranged between a plane of a polished mouth of a quartz glass sample cell of the mercury injection apparatus and a plane of a stainless steel contact component as an electrode; the size of the inside diameter and the outside diameter of the washer is the same as the polished mouth of the quartz glass sample cell; and the thickness of the washer is between 0.1 and 1.0 mm. The washer can be a molecularmaterial washer, a soft metal washer or a graphite washer. The method adopts the washer to replace vacuum grease to realize the sealing of the sample room; and as the washer is a solid flake with a regular shape, the washer has good deformation and buffering capacity, is simple to operate, does not pollute the sample and can be repeatedly used. Moreover, as the thickness and the diameter of the washer are controllable, the quality of the injected mercury is relatively stable and the accuracy and the precision of the test are improved. Simultaneously, the method is safe and reliable and can prevent the sample cell breaking.

A rapid preparation method for synchrotron radiation X-ray diffraction test samples of hydrogen storage materials, which relates to the technical field of synchrotron radiation X-ray diffraction testing. The capillary is inserted into a sponge, and the sponge is hermetically covered in a transparent plexiglass holder, transparent The plexiglass is supported on a metal fixed frame, and the ground powder sample is filled into the capillary through a weighing paper funnel, and the open end of the capillary is sealed with vacuum grease; Carried out in the glove box. This method can reduce the amount of samples used, realize rapid and efficient preparation of test samples, avoid oxidation of hydrogen storage materials, obtain highly accurate synchrotron radiation X-ray spectra of the materials themselves, and then understand the microstructure of materials based on these X-ray spectra.

The invention discloses a precision volumetric vacuum automatic oiling equipment, which comprises a vacuum degassing tank, a feeding pump, an automatic vacuum chamber, a vacuum pump group and a PLC controller. A liquid level sensor and a vacuum pump are installed on the side wall of the vacuum degassing tank. The groups are respectively connected with the vacuum degassing tank and the automatic vacuum chamber. The feed pump is installed on the side wall of the vacuum degassing tank. The oil supply port formed at the bottom of the feed pump is connected with the input port of the metering cylinder through the oil supply pipeline. The metering cylinder The output port of the precision filter is connected with the inlet of the precision filter, and the outlet of the precision filter is connected with the inlet of the oil injection valve; the oil injection valve is installed above the automatic vacuum chamber, and the outlet of the oil injection valve is located in the automatic vacuum chamber; a servo motor is installed above the metering cylinder, controlled by PLC The controller is respectively connected with the vacuum pump group, the servo motor and the oil injection valve through signal lines. The invention makes the oiling precision reach ±0.25g, improves the oiling precision and precision stability, and realizes that the vacuum degree of oiling can be adjusted within the range of 1-30Pa according to the technical requirements.